Datasets:

claudios

/

code_x_glue_devign

like 0

int qdev_unplug(DeviceState *dev) { if (!dev->parent_bus->allow_hotplug) { qemu_error("Bus %s does not support hotplugging\n", dev->parent_bus->name); return -1; } return dev->info->unplug(dev); }

qemu

593831de5dce5f5b9ce1226e0d8353eecb1176e4

static int aa_read_header(AVFormatContext *s) { int i, j, idx, largest_idx = -1; uint32_t nkey, nval, toc_size, npairs, header_seed, start; char key[128], val[128], codec_name[64] = {0}; uint8_t output[24], dst[8], src[8]; int64_t largest_size = -1, current_size = -1; struct toc_entry { uint32_t offset; uint32_t size; } TOC[MAX_TOC_ENTRIES]; uint32_t header_key_part[4]; uint8_t header_key[16]; AADemuxContext *c = s->priv_data; AVIOContext *pb = s->pb; AVStream *st; /* parse .aa header */ avio_skip(pb, 4); // file size avio_skip(pb, 4); // magic string toc_size = avio_rb32(pb); // TOC size avio_skip(pb, 4); // unidentified integer if (toc_size > MAX_TOC_ENTRIES) return AVERROR_INVALIDDATA; for (i = 0; i < toc_size; i++) { // read TOC avio_skip(pb, 4); // TOC entry index TOC[i].offset = avio_rb32(pb); // block offset TOC[i].size = avio_rb32(pb); // block size } avio_skip(pb, 24); // header termination block (ignored) npairs = avio_rb32(pb); // read dictionary entries if (npairs > MAX_DICTIONARY_ENTRIES) return AVERROR_INVALIDDATA; for (i = 0; i < npairs; i++) { memset(val, 0, sizeof(val)); memset(key, 0, sizeof(key)); avio_skip(pb, 1); // unidentified integer nkey = avio_rb32(pb); // key string length nval = avio_rb32(pb); // value string length if (nkey > sizeof(key)) { avio_skip(pb, nkey); } else { avio_read(pb, key, nkey); // key string } if (nval > sizeof(val)) { avio_skip(pb, nval); } else { avio_read(pb, val, nval); // value string } if (!strcmp(key, "codec")) { av_log(s, AV_LOG_DEBUG, "Codec is <%s>\n", val); strncpy(codec_name, val, sizeof(codec_name) - 1); } if (!strcmp(key, "HeaderSeed")) { av_log(s, AV_LOG_DEBUG, "HeaderSeed is <%s>\n", val); header_seed = atoi(val); } if (!strcmp(key, "HeaderKey")) { // this looks like "1234567890 1234567890 1234567890 1234567890" av_log(s, AV_LOG_DEBUG, "HeaderKey is <%s>\n", val); sscanf(val, "%u%u%u%u", &header_key_part[0], &header_key_part[1], &header_key_part[2], &header_key_part[3]); for (idx = 0; idx < 4; idx++) { AV_WB32(&header_key[idx * 4], header_key_part[idx]); // convert each part to BE! } av_log(s, AV_LOG_DEBUG, "Processed HeaderKey is "); for (i = 0; i < 16; i++) av_log(s, AV_LOG_DEBUG, "%02x", header_key[i]); av_log(s, AV_LOG_DEBUG, "\n"); } } /* verify fixed key */ if (c->aa_fixed_key_len != 16) { av_log(s, AV_LOG_ERROR, "aa_fixed_key value needs to be 16 bytes!\n"); return AVERROR(EINVAL); } /* verify codec */ if ((c->codec_second_size = get_second_size(codec_name)) == -1) { av_log(s, AV_LOG_ERROR, "unknown codec <%s>!\n", codec_name); return AVERROR(EINVAL); } /* decryption key derivation */ c->tea_ctx = av_tea_alloc(); if (!c->tea_ctx) return AVERROR(ENOMEM); av_tea_init(c->tea_ctx, c->aa_fixed_key, 16); output[0] = output[1] = 0; // purely for padding purposes memcpy(output + 2, header_key, 16); idx = 0; for (i = 0; i < 3; i++) { // TEA CBC with weird mixed endianness AV_WB32(src, header_seed); AV_WB32(src + 4, header_seed + 1); header_seed += 2; av_tea_crypt(c->tea_ctx, dst, src, 1, NULL, 0); // TEA ECB encrypt for (j = 0; j < TEA_BLOCK_SIZE && idx < 18; j+=1, idx+=1) { output[idx] = output[idx] ^ dst[j]; } } memcpy(c->file_key, output + 2, 16); // skip first 2 bytes of output av_log(s, AV_LOG_DEBUG, "File key is "); for (i = 0; i < 16; i++) av_log(s, AV_LOG_DEBUG, "%02x", c->file_key[i]); av_log(s, AV_LOG_DEBUG, "\n"); /* decoder setup */ st = avformat_new_stream(s, NULL); if (!st) { av_freep(&c->tea_ctx); return AVERROR(ENOMEM); } st->codec->codec_type = AVMEDIA_TYPE_AUDIO; if (!strcmp(codec_name, "mp332")) { st->codec->codec_id = AV_CODEC_ID_MP3; st->codec->sample_rate = 22050; st->need_parsing = AVSTREAM_PARSE_FULL_RAW; st->start_time = 0; } else if (!strcmp(codec_name, "acelp85")) { st->codec->codec_id = AV_CODEC_ID_SIPR; st->codec->block_align = 19; st->codec->channels = 1; st->codec->sample_rate = 8500; } else if (!strcmp(codec_name, "acelp16")) { st->codec->codec_id = AV_CODEC_ID_SIPR; st->codec->block_align = 20; st->codec->channels = 1; st->codec->sample_rate = 16000; } /* determine, and jump to audio start offset */ for (i = 1; i < toc_size; i++) { // skip the first entry! current_size = TOC[i].size; if (current_size > largest_size) { largest_idx = i; largest_size = current_size; } } start = TOC[largest_idx].offset; avio_seek(pb, start, SEEK_SET); c->current_chapter_size = 0; return 0; }

FFmpeg

8e28e0721c61cface6496fe4657ff5d3c3d2e6b8

vorbis_comment(AVFormatContext * as, uint8_t *buf, int size) { const uint8_t *p = buf; const uint8_t *end = buf + size; unsigned s, n, j; if (size < 8) /* must have vendor_length and user_comment_list_length */ return -1; s = bytestream_get_le32(&p); if (end - p < s) return -1; p += s; n = bytestream_get_le32(&p); while (p < end && n > 0) { const char *t, *v; int tl, vl; s = bytestream_get_le32(&p); if (end - p < s) break; t = p; p += s; n--; v = memchr(t, '=', s); if (!v) continue; tl = v - t; vl = s - tl - 1; v++; if (tl && vl) { char *tt, *ct; tt = av_malloc(tl + 1); ct = av_malloc(vl + 1); if (!tt || !ct) { av_freep(&tt); av_freep(&ct); av_log(as, AV_LOG_WARNING, "out-of-memory error. skipping VorbisComment tag.\n"); continue; } for (j = 0; j < tl; j++) tt[j] = toupper(t[j]); tt[tl] = 0; memcpy(ct, v, vl); ct[vl] = 0; av_metadata_set(&as->metadata, tt, ct); av_freep(&tt); av_freep(&ct); } } if (p != end) av_log(as, AV_LOG_INFO, "%ti bytes of comment header remain\n", end-p); if (n > 0) av_log(as, AV_LOG_INFO, "truncated comment header, %i comments not found\n", n); return 0; }

FFmpeg

98422c44cf86de6da8f73a7bd80284ed165c5a98

static float get_band_cost_ESC_mips(struct AACEncContext *s, PutBitContext *pb, const float *in, const float *scaled, int size, int scale_idx, int cb, const float lambda, const float uplim, int *bits) { const float Q34 = ff_aac_pow34sf_tab[POW_SF2_ZERO - scale_idx + SCALE_ONE_POS - SCALE_DIV_512]; const float IQ = ff_aac_pow2sf_tab [POW_SF2_ZERO + scale_idx - SCALE_ONE_POS + SCALE_DIV_512]; const float CLIPPED_ESCAPE = 165140.0f * IQ; int i; float cost = 0; int qc1, qc2, qc3, qc4; int curbits = 0; uint8_t *p_bits = (uint8_t*)ff_aac_spectral_bits[cb-1]; float *p_codes = (float* )ff_aac_codebook_vectors[cb-1]; for (i = 0; i < size; i += 4) { const float *vec, *vec2; int curidx, curidx2; float t1, t2, t3, t4; float di1, di2, di3, di4; int cond0, cond1, cond2, cond3; int c1, c2, c3, c4; int t6, t7; qc1 = scaled[i ] * Q34 + ROUND_STANDARD; qc2 = scaled[i+1] * Q34 + ROUND_STANDARD; qc3 = scaled[i+2] * Q34 + ROUND_STANDARD; qc4 = scaled[i+3] * Q34 + ROUND_STANDARD; __asm__ volatile ( ".set push \n\t" ".set noreorder \n\t" "ori %[t6], $zero, 15 \n\t" "ori %[t7], $zero, 16 \n\t" "shll_s.w %[c1], %[qc1], 18 \n\t" "shll_s.w %[c2], %[qc2], 18 \n\t" "shll_s.w %[c3], %[qc3], 18 \n\t" "shll_s.w %[c4], %[qc4], 18 \n\t" "srl %[c1], %[c1], 18 \n\t" "srl %[c2], %[c2], 18 \n\t" "srl %[c3], %[c3], 18 \n\t" "srl %[c4], %[c4], 18 \n\t" "slt %[cond0], %[t6], %[qc1] \n\t" "slt %[cond1], %[t6], %[qc2] \n\t" "slt %[cond2], %[t6], %[qc3] \n\t" "slt %[cond3], %[t6], %[qc4] \n\t" "movn %[qc1], %[t7], %[cond0] \n\t" "movn %[qc2], %[t7], %[cond1] \n\t" "movn %[qc3], %[t7], %[cond2] \n\t" "movn %[qc4], %[t7], %[cond3] \n\t" ".set pop \n\t" : [qc1]"+r"(qc1), [qc2]"+r"(qc2), [qc3]"+r"(qc3), [qc4]"+r"(qc4), [cond0]"=&r"(cond0), [cond1]"=&r"(cond1), [cond2]"=&r"(cond2), [cond3]"=&r"(cond3), [c1]"=&r"(c1), [c2]"=&r"(c2), [c3]"=&r"(c3), [c4]"=&r"(c4), [t6]"=&r"(t6), [t7]"=&r"(t7) ); curidx = 17 * qc1; curidx += qc2; curidx2 = 17 * qc3; curidx2 += qc4; curbits += p_bits[curidx]; curbits += esc_sign_bits[curidx]; vec = &p_codes[curidx*2]; curbits += p_bits[curidx2]; curbits += esc_sign_bits[curidx2]; vec2 = &p_codes[curidx2*2]; curbits += (av_log2(c1) * 2 - 3) & (-cond0); curbits += (av_log2(c2) * 2 - 3) & (-cond1); curbits += (av_log2(c3) * 2 - 3) & (-cond2); curbits += (av_log2(c4) * 2 - 3) & (-cond3); t1 = fabsf(in[i ]); t2 = fabsf(in[i+1]); t3 = fabsf(in[i+2]); t4 = fabsf(in[i+3]); if (cond0) { if (t1 >= CLIPPED_ESCAPE) { di1 = t1 - CLIPPED_ESCAPE; } else { di1 = t1 - c1 * cbrtf(c1) * IQ; } } else di1 = t1 - vec[0] * IQ; if (cond1) { if (t2 >= CLIPPED_ESCAPE) { di2 = t2 - CLIPPED_ESCAPE; } else { di2 = t2 - c2 * cbrtf(c2) * IQ; } } else di2 = t2 - vec[1] * IQ; if (cond2) { if (t3 >= CLIPPED_ESCAPE) { di3 = t3 - CLIPPED_ESCAPE; } else { di3 = t3 - c3 * cbrtf(c3) * IQ; } } else di3 = t3 - vec2[0] * IQ; if (cond3) { if (t4 >= CLIPPED_ESCAPE) { di4 = t4 - CLIPPED_ESCAPE; } else { di4 = t4 - c4 * cbrtf(c4) * IQ; } } else di4 = t4 - vec2[1]*IQ; cost += di1 * di1 + di2 * di2 + di3 * di3 + di4 * di4; } if (bits) *bits = curbits; return cost * lambda + curbits; }

FFmpeg

01ecb7172b684f1c4b3e748f95c5a9a494ca36ec

static PayloadContext *h264_new_context(void) { PayloadContext *data = av_mallocz(sizeof(PayloadContext) + FF_INPUT_BUFFER_PADDING_SIZE); if (data) { data->cookie = MAGIC_COOKIE; } return data; }

FFmpeg

5a571d324129ce367584ad9d92aae1d286f389a2

int qemu_pipe(int pipefd[2]) { int ret; #ifdef CONFIG_PIPE2 ret = pipe2(pipefd, O_CLOEXEC); #else ret = pipe(pipefd); if (ret == 0) { qemu_set_cloexec(pipefd[0]); qemu_set_cloexec(pipefd[1]); } #endif return ret; }

qemu

3a03bfa5a219fe06779706315f2555622b51193c

static inline int parse_nal_units(AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t *buf, int buf_size) { H264Context *h = s->priv_data; const uint8_t *buf_end = buf + buf_size; unsigned int pps_id; unsigned int slice_type; int state; const uint8_t *ptr; /* set some sane default values */ s->pict_type = FF_I_TYPE; s->key_frame = 0; h->s.avctx= avctx; h->sei_recovery_frame_cnt = -1; h->sei_dpb_output_delay = 0; h->sei_cpb_removal_delay = -1; h->sei_buffering_period_present = 0; for(;;) { int src_length, dst_length, consumed; buf = ff_find_start_code(buf, buf_end, &state); if(buf >= buf_end) break; --buf; src_length = buf_end - buf; switch (state & 0x1f) { case NAL_SLICE: case NAL_IDR_SLICE: // Do not walk the whole buffer just to decode slice header if (src_length > 20) src_length = 20; break; } ptr= ff_h264_decode_nal(h, buf, &dst_length, &consumed, src_length); if (ptr==NULL || dst_length < 0) break; init_get_bits(&h->s.gb, ptr, 8*dst_length); switch(h->nal_unit_type) { case NAL_SPS: ff_h264_decode_seq_parameter_set(h); break; case NAL_PPS: ff_h264_decode_picture_parameter_set(h, h->s.gb.size_in_bits); break; case NAL_SEI: ff_h264_decode_sei(h); break; case NAL_IDR_SLICE: s->key_frame = 1; /* fall through */ case NAL_SLICE: get_ue_golomb(&h->s.gb); // skip first_mb_in_slice slice_type = get_ue_golomb_31(&h->s.gb); s->pict_type = golomb_to_pict_type[slice_type % 5]; if (h->sei_recovery_frame_cnt >= 0) { /* key frame, since recovery_frame_cnt is set */ s->key_frame = 1; } pps_id= get_ue_golomb(&h->s.gb); if(pps_id>=MAX_PPS_COUNT) { av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n"); return -1; } if(!h->pps_buffers[pps_id]) { av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS referenced\n"); return -1; } h->pps= *h->pps_buffers[pps_id]; if(!h->sps_buffers[h->pps.sps_id]) { av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS referenced\n"); return -1; } h->sps = *h->sps_buffers[h->pps.sps_id]; h->frame_num = get_bits(&h->s.gb, h->sps.log2_max_frame_num); if(h->sps.frame_mbs_only_flag){ h->s.picture_structure= PICT_FRAME; }else{ if(get_bits1(&h->s.gb)) { //field_pic_flag h->s.picture_structure= PICT_TOP_FIELD + get_bits1(&h->s.gb); //bottom_field_flag } else { h->s.picture_structure= PICT_FRAME; } } if(h->sps.pic_struct_present_flag) { switch (h->sei_pic_struct) { case SEI_PIC_STRUCT_TOP_FIELD: case SEI_PIC_STRUCT_BOTTOM_FIELD: s->repeat_pict = 0; break; case SEI_PIC_STRUCT_FRAME: case SEI_PIC_STRUCT_TOP_BOTTOM: case SEI_PIC_STRUCT_BOTTOM_TOP: s->repeat_pict = 1; break; case SEI_PIC_STRUCT_TOP_BOTTOM_TOP: case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM: s->repeat_pict = 2; break; case SEI_PIC_STRUCT_FRAME_DOUBLING: s->repeat_pict = 3; break; case SEI_PIC_STRUCT_FRAME_TRIPLING: s->repeat_pict = 5; break; default: s->repeat_pict = h->s.picture_structure == PICT_FRAME ? 1 : 0; break; } } else { s->repeat_pict = h->s.picture_structure == PICT_FRAME ? 1 : 0; } return 0; /* no need to evaluate the rest */ } buf += consumed; } /* didn't find a picture! */ av_log(h->s.avctx, AV_LOG_ERROR, "missing picture in access unit\n"); return -1; }

FFmpeg

8fa0ae060b759d00c8d8f4070b36c16b3dbf0d8a

static inline void write_IRQreg (openpic_t *opp, int n_IRQ, uint32_t reg, uint32_t val) { uint32_t tmp; switch (reg) { case IRQ_IPVP: /* NOTE: not fully accurate for special IRQs, but simple and sufficient */ /* ACTIVITY bit is read-only */ opp->src[n_IRQ].ipvp = (opp->src[n_IRQ].ipvp & 0x40000000) | (val & 0x800F00FF); openpic_update_irq(opp, n_IRQ); DPRINTF("Set IPVP %d to 0x%08x -> 0x%08x\n", n_IRQ, val, opp->src[n_IRQ].ipvp); break; case IRQ_IDE: tmp = val & 0xC0000000; tmp |= val & ((1 << MAX_CPU) - 1); opp->src[n_IRQ].ide = tmp; DPRINTF("Set IDE %d to 0x%08x\n", n_IRQ, opp->src[n_IRQ].ide); break; } }

qemu

bbc5842211cdd90103cfe52f2ca24afac880694f

static void ff_h264_idct_add16_sse2(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){ int i; for(i=0; i<16; i+=2) if(nnzc[ scan8[i+0] ]|nnzc[ scan8[i+1] ]) ff_x264_add8x4_idct_sse2 (dst + block_offset[i], block + i*16, stride); }

FFmpeg

1d16a1cf99488f16492b1bb48e023f4da8377e07

static void sync_c0_tcstatus(CPUMIPSState *cpu, int tc, target_ulong v) { uint32_t status; uint32_t tcu, tmx, tasid, tksu; uint32_t mask = ((1 << CP0St_CU3) | (1 << CP0St_CU2) | (1 << CP0St_CU1) | (1 << CP0St_CU0) | (1 << CP0St_MX) | (3 << CP0St_KSU)); tcu = (v >> CP0TCSt_TCU0) & 0xf; tmx = (v >> CP0TCSt_TMX) & 0x1; tasid = v & 0xff; tksu = (v >> CP0TCSt_TKSU) & 0x3; status = tcu << CP0St_CU0; status |= tmx << CP0St_MX; status |= tksu << CP0St_KSU; cpu->CP0_Status &= ~mask; cpu->CP0_Status |= status; /* Sync the TASID with EntryHi. */ cpu->CP0_EntryHi &= ~0xff; cpu->CP0_EntryHi = tasid; compute_hflags(cpu); }

qemu

f45cb2f43f5bb0a4122a64e61c746048b59a84ed

static int mpeg4_decode_sprite_trajectory(Mpeg4DecContext *ctx, GetBitContext *gb) { MpegEncContext *s = &ctx->m; int a = 2 << s->sprite_warping_accuracy; int rho = 3 - s->sprite_warping_accuracy; int r = 16 / a; int alpha = 0; int beta = 0; int w = s->width; int h = s->height; int min_ab, i, w2, h2, w3, h3; int sprite_ref[4][2]; int virtual_ref[2][2]; // only true for rectangle shapes const int vop_ref[4][2] = { { 0, 0 }, { s->width, 0 }, { 0, s->height }, { s->width, s->height } }; int d[4][2] = { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }; if (w <= 0 || h <= 0) return AVERROR_INVALIDDATA; for (i = 0; i < ctx->num_sprite_warping_points; i++) { int length; int x = 0, y = 0; length = get_vlc2(gb, sprite_trajectory.table, SPRITE_TRAJ_VLC_BITS, 3); if (length > 0) x = get_xbits(gb, length); if (!(ctx->divx_version == 500 && ctx->divx_build == 413)) check_marker(s->avctx, gb, "before sprite_trajectory"); length = get_vlc2(gb, sprite_trajectory.table, SPRITE_TRAJ_VLC_BITS, 3); if (length > 0) y = get_xbits(gb, length); check_marker(s->avctx, gb, "after sprite_trajectory"); ctx->sprite_traj[i][0] = d[i][0] = x; ctx->sprite_traj[i][1] = d[i][1] = y; for (; i < 4; i++) ctx->sprite_traj[i][0] = ctx->sprite_traj[i][1] = 0; while ((1 << alpha) < w) alpha++; while ((1 << beta) < h) beta++; /* typo in the MPEG-4 std for the definition of w' and h' */ w2 = 1 << alpha; h2 = 1 << beta; // Note, the 4th point isn't used for GMC if (ctx->divx_version == 500 && ctx->divx_build == 413) { sprite_ref[0][0] = a * vop_ref[0][0] + d[0][0]; sprite_ref[0][1] = a * vop_ref[0][1] + d[0][1]; sprite_ref[1][0] = a * vop_ref[1][0] + d[0][0] + d[1][0]; sprite_ref[1][1] = a * vop_ref[1][1] + d[0][1] + d[1][1]; sprite_ref[2][0] = a * vop_ref[2][0] + d[0][0] + d[2][0]; sprite_ref[2][1] = a * vop_ref[2][1] + d[0][1] + d[2][1]; } else { sprite_ref[0][0] = (a >> 1) * (2 * vop_ref[0][0] + d[0][0]); sprite_ref[0][1] = (a >> 1) * (2 * vop_ref[0][1] + d[0][1]); sprite_ref[1][0] = (a >> 1) * (2 * vop_ref[1][0] + d[0][0] + d[1][0]); sprite_ref[1][1] = (a >> 1) * (2 * vop_ref[1][1] + d[0][1] + d[1][1]); sprite_ref[2][0] = (a >> 1) * (2 * vop_ref[2][0] + d[0][0] + d[2][0]); sprite_ref[2][1] = (a >> 1) * (2 * vop_ref[2][1] + d[0][1] + d[2][1]); /* sprite_ref[3][0] = (a >> 1) * (2 * vop_ref[3][0] + d[0][0] + d[1][0] + d[2][0] + d[3][0]); * sprite_ref[3][1] = (a >> 1) * (2 * vop_ref[3][1] + d[0][1] + d[1][1] + d[2][1] + d[3][1]); */ /* This is mostly identical to the MPEG-4 std (and is totally unreadable * because of that...). Perhaps it should be reordered to be more readable. * The idea behind this virtual_ref mess is to be able to use shifts later * per pixel instead of divides so the distance between points is converted * from w&h based to w2&h2 based which are of the 2^x form. */ virtual_ref[0][0] = 16 * (vop_ref[0][0] + w2) + ROUNDED_DIV(((w - w2) * (r * sprite_ref[0][0] - 16 * vop_ref[0][0]) + w2 * (r * sprite_ref[1][0] - 16 * vop_ref[1][0])), w); virtual_ref[0][1] = 16 * vop_ref[0][1] + ROUNDED_DIV(((w - w2) * (r * sprite_ref[0][1] - 16 * vop_ref[0][1]) + w2 * (r * sprite_ref[1][1] - 16 * vop_ref[1][1])), w); virtual_ref[1][0] = 16 * vop_ref[0][0] + ROUNDED_DIV(((h - h2) * (r * sprite_ref[0][0] - 16 * vop_ref[0][0]) + h2 * (r * sprite_ref[2][0] - 16 * vop_ref[2][0])), h); virtual_ref[1][1] = 16 * (vop_ref[0][1] + h2) + ROUNDED_DIV(((h - h2) * (r * sprite_ref[0][1] - 16 * vop_ref[0][1]) + h2 * (r * sprite_ref[2][1] - 16 * vop_ref[2][1])), h); switch (ctx->num_sprite_warping_points) { case 0: s->sprite_offset[0][0] = s->sprite_offset[0][1] = s->sprite_offset[1][0] = s->sprite_offset[1][1] = 0; s->sprite_delta[0][0] = a; s->sprite_delta[0][1] = s->sprite_delta[1][0] = 0; s->sprite_delta[1][1] = a; ctx->sprite_shift[0] = ctx->sprite_shift[1] = 0; break; case 1: // GMC only s->sprite_offset[0][0] = sprite_ref[0][0] - a * vop_ref[0][0]; s->sprite_offset[0][1] = sprite_ref[0][1] - a * vop_ref[0][1]; s->sprite_offset[1][0] = ((sprite_ref[0][0] >> 1) | (sprite_ref[0][0] & 1)) - a * (vop_ref[0][0] / 2); s->sprite_offset[1][1] = ((sprite_ref[0][1] >> 1) | (sprite_ref[0][1] & 1)) - a * (vop_ref[0][1] / 2); s->sprite_delta[0][0] = a; s->sprite_delta[0][1] = s->sprite_delta[1][0] = 0; s->sprite_delta[1][1] = a; ctx->sprite_shift[0] = ctx->sprite_shift[1] = 0; break; case 2: s->sprite_offset[0][0] = (sprite_ref[0][0] << (alpha + rho)) + (-r * sprite_ref[0][0] + virtual_ref[0][0]) * (-vop_ref[0][0]) + (r * sprite_ref[0][1] - virtual_ref[0][1]) * (-vop_ref[0][1]) + (1 << (alpha + rho - 1)); s->sprite_offset[0][1] = (sprite_ref[0][1] << (alpha + rho)) + (-r * sprite_ref[0][1] + virtual_ref[0][1]) * (-vop_ref[0][0]) + (-r * sprite_ref[0][0] + virtual_ref[0][0]) * (-vop_ref[0][1]) + (1 << (alpha + rho - 1)); s->sprite_offset[1][0] = ((-r * sprite_ref[0][0] + virtual_ref[0][0]) * (-2 * vop_ref[0][0] + 1) + (r * sprite_ref[0][1] - virtual_ref[0][1]) * (-2 * vop_ref[0][1] + 1) + 2 * w2 * r * sprite_ref[0][0] - 16 * w2 + (1 << (alpha + rho + 1))); s->sprite_offset[1][1] = ((-r * sprite_ref[0][1] + virtual_ref[0][1]) * (-2 * vop_ref[0][0] + 1) + (-r * sprite_ref[0][0] + virtual_ref[0][0]) * (-2 * vop_ref[0][1] + 1) + 2 * w2 * r * sprite_ref[0][1] - 16 * w2 + (1 << (alpha + rho + 1))); s->sprite_delta[0][0] = (-r * sprite_ref[0][0] + virtual_ref[0][0]); s->sprite_delta[0][1] = (+r * sprite_ref[0][1] - virtual_ref[0][1]); s->sprite_delta[1][0] = (-r * sprite_ref[0][1] + virtual_ref[0][1]); s->sprite_delta[1][1] = (-r * sprite_ref[0][0] + virtual_ref[0][0]); ctx->sprite_shift[0] = alpha + rho; ctx->sprite_shift[1] = alpha + rho + 2; break; case 3: min_ab = FFMIN(alpha, beta); w3 = w2 >> min_ab; h3 = h2 >> min_ab; s->sprite_offset[0][0] = (sprite_ref[0][0] * (1<<(alpha + beta + rho - min_ab))) + (-r * sprite_ref[0][0] + virtual_ref[0][0]) * h3 * (-vop_ref[0][0]) + (-r * sprite_ref[0][0] + virtual_ref[1][0]) * w3 * (-vop_ref[0][1]) + (1 << (alpha + beta + rho - min_ab - 1)); s->sprite_offset[0][1] = (sprite_ref[0][1] * (1 << (alpha + beta + rho - min_ab))) + (-r * sprite_ref[0][1] + virtual_ref[0][1]) * h3 * (-vop_ref[0][0]) + (-r * sprite_ref[0][1] + virtual_ref[1][1]) * w3 * (-vop_ref[0][1]) + (1 << (alpha + beta + rho - min_ab - 1)); s->sprite_offset[1][0] = (-r * sprite_ref[0][0] + virtual_ref[0][0]) * h3 * (-2 * vop_ref[0][0] + 1) + (-r * sprite_ref[0][0] + virtual_ref[1][0]) * w3 * (-2 * vop_ref[0][1] + 1) + 2 * w2 * h3 * r * sprite_ref[0][0] - 16 * w2 * h3 + (1 << (alpha + beta + rho - min_ab + 1)); s->sprite_offset[1][1] = (-r * sprite_ref[0][1] + virtual_ref[0][1]) * h3 * (-2 * vop_ref[0][0] + 1) + (-r * sprite_ref[0][1] + virtual_ref[1][1]) * w3 * (-2 * vop_ref[0][1] + 1) + 2 * w2 * h3 * r * sprite_ref[0][1] - 16 * w2 * h3 + (1 << (alpha + beta + rho - min_ab + 1)); s->sprite_delta[0][0] = (-r * sprite_ref[0][0] + virtual_ref[0][0]) * h3; s->sprite_delta[0][1] = (-r * sprite_ref[0][0] + virtual_ref[1][0]) * w3; s->sprite_delta[1][0] = (-r * sprite_ref[0][1] + virtual_ref[0][1]) * h3; s->sprite_delta[1][1] = (-r * sprite_ref[0][1] + virtual_ref[1][1]) * w3; ctx->sprite_shift[0] = alpha + beta + rho - min_ab; ctx->sprite_shift[1] = alpha + beta + rho - min_ab + 2; break; /* try to simplify the situation */ if (s->sprite_delta[0][0] == a << ctx->sprite_shift[0] && s->sprite_delta[0][1] == 0 && s->sprite_delta[1][0] == 0 && s->sprite_delta[1][1] == a << ctx->sprite_shift[0]) { s->sprite_offset[0][0] >>= ctx->sprite_shift[0]; s->sprite_offset[0][1] >>= ctx->sprite_shift[0]; s->sprite_offset[1][0] >>= ctx->sprite_shift[1]; s->sprite_offset[1][1] >>= ctx->sprite_shift[1]; s->sprite_delta[0][0] = a; s->sprite_delta[0][1] = 0; s->sprite_delta[1][0] = 0; s->sprite_delta[1][1] = a; ctx->sprite_shift[0] = 0; ctx->sprite_shift[1] = 0; s->real_sprite_warping_points = 1; } else { int shift_y = 16 - ctx->sprite_shift[0]; int shift_c = 16 - ctx->sprite_shift[1]; if (shift_c < 0 || shift_y < 0 || FFABS(s->sprite_offset[0][0]) >= INT_MAX >> shift_y || FFABS(s->sprite_offset[1][0]) >= INT_MAX >> shift_c || FFABS(s->sprite_offset[0][1]) >= INT_MAX >> shift_y || FFABS(s->sprite_offset[1][1]) >= INT_MAX >> shift_c ) { avpriv_request_sample(s->avctx, "Too large sprite shift or offset"); for (i = 0; i < 2; i++) { s->sprite_offset[0][i] *= 1 << shift_y; s->sprite_offset[1][i] *= 1 << shift_c; s->sprite_delta[0][i] *= 1 << shift_y; s->sprite_delta[1][i] *= 1 << shift_y; ctx->sprite_shift[i] = 16; s->real_sprite_warping_points = ctx->num_sprite_warping_points; return 0;

FFmpeg

76ba09d18245a2a41dc5f93a60fd00cdf358cb1f

static void gen_add16(TCGv t0, TCGv t1) { TCGv tmp = new_tmp(); tcg_gen_xor_i32(tmp, t0, t1); tcg_gen_andi_i32(tmp, tmp, 0x8000); tcg_gen_andi_i32(t0, t0, ~0x8000); tcg_gen_andi_i32(t1, t1, ~0x8000); tcg_gen_add_i32(t0, t0, t1); tcg_gen_xor_i32(t0, t0, tmp); dead_tmp(tmp); dead_tmp(t1); }

qemu

7d1b0095bff7157e856d1d0e6c4295641ced2752

static void do_v7m_exception_exit(ARMCPU *cpu) { CPUARMState *env = &cpu->env; CPUState *cs = CPU(cpu); uint32_t excret; uint32_t xpsr; bool ufault = false; bool sfault = false; bool return_to_sp_process; bool return_to_handler; bool rettobase = false; bool exc_secure = false; bool return_to_secure; /* We can only get here from an EXCP_EXCEPTION_EXIT, and * gen_bx_excret() enforces the architectural rule * that jumps to magic addresses don't have magic behaviour unless * we're in Handler mode (compare pseudocode BXWritePC()). */ assert(arm_v7m_is_handler_mode(env)); /* In the spec pseudocode ExceptionReturn() is called directly * from BXWritePC() and gets the full target PC value including * bit zero. In QEMU's implementation we treat it as a normal * jump-to-register (which is then caught later on), and so split * the target value up between env->regs[15] and env->thumb in * gen_bx(). Reconstitute it. */ excret = env->regs[15]; if (env->thumb) { excret |= 1; } qemu_log_mask(CPU_LOG_INT, "Exception return: magic PC %" PRIx32 " previous exception %d\n", excret, env->v7m.exception); if ((excret & R_V7M_EXCRET_RES1_MASK) != R_V7M_EXCRET_RES1_MASK) { qemu_log_mask(LOG_GUEST_ERROR, "M profile: zero high bits in exception " "exit PC value 0x%" PRIx32 " are UNPREDICTABLE\n", excret); } if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { /* EXC_RETURN.ES validation check (R_SMFL). We must do this before * we pick which FAULTMASK to clear. */ if (!env->v7m.secure && ((excret & R_V7M_EXCRET_ES_MASK) || !(excret & R_V7M_EXCRET_DCRS_MASK))) { sfault = 1; /* For all other purposes, treat ES as 0 (R_HXSR) */ excret &= ~R_V7M_EXCRET_ES_MASK; } } if (env->v7m.exception != ARMV7M_EXCP_NMI) { /* Auto-clear FAULTMASK on return from other than NMI. * If the security extension is implemented then this only * happens if the raw execution priority is >= 0; the * value of the ES bit in the exception return value indicates * which security state's faultmask to clear. (v8M ARM ARM R_KBNF.) */ if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { exc_secure = excret & R_V7M_EXCRET_ES_MASK; if (armv7m_nvic_raw_execution_priority(env->nvic) >= 0) { env->v7m.faultmask[exc_secure] = 0; } } else { env->v7m.faultmask[M_REG_NS] = 0; } } switch (armv7m_nvic_complete_irq(env->nvic, env->v7m.exception, exc_secure)) { case -1: /* attempt to exit an exception that isn't active */ ufault = true; break; case 0: /* still an irq active now */ break; case 1: /* we returned to base exception level, no nesting. * (In the pseudocode this is written using "NestedActivation != 1" * where we have 'rettobase == false'.) */ rettobase = true; break; default: g_assert_not_reached(); } return_to_handler = !(excret & R_V7M_EXCRET_MODE_MASK); return_to_sp_process = excret & R_V7M_EXCRET_SPSEL_MASK; return_to_secure = arm_feature(env, ARM_FEATURE_M_SECURITY) && (excret & R_V7M_EXCRET_S_MASK); if (arm_feature(env, ARM_FEATURE_V8)) { if (!arm_feature(env, ARM_FEATURE_M_SECURITY)) { /* UNPREDICTABLE if S == 1 or DCRS == 0 or ES == 1 (R_XLCP); * we choose to take the UsageFault. */ if ((excret & R_V7M_EXCRET_S_MASK) || (excret & R_V7M_EXCRET_ES_MASK) || !(excret & R_V7M_EXCRET_DCRS_MASK)) { ufault = true; } } if (excret & R_V7M_EXCRET_RES0_MASK) { ufault = true; } } else { /* For v7M we only recognize certain combinations of the low bits */ switch (excret & 0xf) { case 1: /* Return to Handler */ break; case 13: /* Return to Thread using Process stack */ case 9: /* Return to Thread using Main stack */ /* We only need to check NONBASETHRDENA for v7M, because in * v8M this bit does not exist (it is RES1). */ if (!rettobase && !(env->v7m.ccr[env->v7m.secure] & R_V7M_CCR_NONBASETHRDENA_MASK)) { ufault = true; } break; default: ufault = true; } } if (sfault) { env->v7m.sfsr |= R_V7M_SFSR_INVER_MASK; armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_SECURE, false); v7m_exception_taken(cpu, excret); qemu_log_mask(CPU_LOG_INT, "...taking SecureFault on existing " "stackframe: failed EXC_RETURN.ES validity check\n"); return; } if (ufault) { /* Bad exception return: instead of popping the exception * stack, directly take a usage fault on the current stack. */ env->v7m.cfsr[env->v7m.secure] |= R_V7M_CFSR_INVPC_MASK; armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_USAGE, env->v7m.secure); v7m_exception_taken(cpu, excret); qemu_log_mask(CPU_LOG_INT, "...taking UsageFault on existing " "stackframe: failed exception return integrity check\n"); return; } /* Set CONTROL.SPSEL from excret.SPSEL. Since we're still in * Handler mode (and will be until we write the new XPSR.Interrupt * field) this does not switch around the current stack pointer. */ write_v7m_control_spsel_for_secstate(env, return_to_sp_process, exc_secure); switch_v7m_security_state(env, return_to_secure); { /* The stack pointer we should be reading the exception frame from * depends on bits in the magic exception return type value (and * for v8M isn't necessarily the stack pointer we will eventually * end up resuming execution with). Get a pointer to the location * in the CPU state struct where the SP we need is currently being * stored; we will use and modify it in place. * We use this limited C variable scope so we don't accidentally * use 'frame_sp_p' after we do something that makes it invalid. */ uint32_t *frame_sp_p = get_v7m_sp_ptr(env, return_to_secure, !return_to_handler, return_to_sp_process); uint32_t frameptr = *frame_sp_p; if (!QEMU_IS_ALIGNED(frameptr, 8) && arm_feature(env, ARM_FEATURE_V8)) { qemu_log_mask(LOG_GUEST_ERROR, "M profile exception return with non-8-aligned SP " "for destination state is UNPREDICTABLE\n"); } /* Do we need to pop callee-saved registers? */ if (return_to_secure && ((excret & R_V7M_EXCRET_ES_MASK) == 0 || (excret & R_V7M_EXCRET_DCRS_MASK) == 0)) { uint32_t expected_sig = 0xfefa125b; uint32_t actual_sig = ldl_phys(cs->as, frameptr); if (expected_sig != actual_sig) { /* Take a SecureFault on the current stack */ env->v7m.sfsr |= R_V7M_SFSR_INVIS_MASK; armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_SECURE, false); v7m_exception_taken(cpu, excret); qemu_log_mask(CPU_LOG_INT, "...taking SecureFault on existing " "stackframe: failed exception return integrity " "signature check\n"); return; } env->regs[4] = ldl_phys(cs->as, frameptr + 0x8); env->regs[5] = ldl_phys(cs->as, frameptr + 0xc); env->regs[6] = ldl_phys(cs->as, frameptr + 0x10); env->regs[7] = ldl_phys(cs->as, frameptr + 0x14); env->regs[8] = ldl_phys(cs->as, frameptr + 0x18); env->regs[9] = ldl_phys(cs->as, frameptr + 0x1c); env->regs[10] = ldl_phys(cs->as, frameptr + 0x20); env->regs[11] = ldl_phys(cs->as, frameptr + 0x24); frameptr += 0x28; } /* Pop registers. TODO: make these accesses use the correct * attributes and address space (S/NS, priv/unpriv) and handle * memory transaction failures. */ env->regs[0] = ldl_phys(cs->as, frameptr); env->regs[1] = ldl_phys(cs->as, frameptr + 0x4); env->regs[2] = ldl_phys(cs->as, frameptr + 0x8); env->regs[3] = ldl_phys(cs->as, frameptr + 0xc); env->regs[12] = ldl_phys(cs->as, frameptr + 0x10); env->regs[14] = ldl_phys(cs->as, frameptr + 0x14); env->regs[15] = ldl_phys(cs->as, frameptr + 0x18); /* Returning from an exception with a PC with bit 0 set is defined * behaviour on v8M (bit 0 is ignored), but for v7M it was specified * to be UNPREDICTABLE. In practice actual v7M hardware seems to ignore * the lsbit, and there are several RTOSes out there which incorrectly * assume the r15 in the stack frame should be a Thumb-style "lsbit * indicates ARM/Thumb" value, so ignore the bit on v7M as well, but * complain about the badly behaved guest. */ if (env->regs[15] & 1) { env->regs[15] &= ~1U; if (!arm_feature(env, ARM_FEATURE_V8)) { qemu_log_mask(LOG_GUEST_ERROR, "M profile return from interrupt with misaligned " "PC is UNPREDICTABLE on v7M\n"); } } xpsr = ldl_phys(cs->as, frameptr + 0x1c); if (arm_feature(env, ARM_FEATURE_V8)) { /* For v8M we have to check whether the xPSR exception field * matches the EXCRET value for return to handler/thread * before we commit to changing the SP and xPSR. */ bool will_be_handler = (xpsr & XPSR_EXCP) != 0; if (return_to_handler != will_be_handler) { /* Take an INVPC UsageFault on the current stack. * By this point we will have switched to the security state * for the background state, so this UsageFault will target * that state. */ armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_USAGE, env->v7m.secure); env->v7m.cfsr[env->v7m.secure] |= R_V7M_CFSR_INVPC_MASK; v7m_exception_taken(cpu, excret); qemu_log_mask(CPU_LOG_INT, "...taking UsageFault on existing " "stackframe: failed exception return integrity " "check\n"); return; } } /* Commit to consuming the stack frame */ frameptr += 0x20; /* Undo stack alignment (the SPREALIGN bit indicates that the original * pre-exception SP was not 8-aligned and we added a padding word to * align it, so we undo this by ORing in the bit that increases it * from the current 8-aligned value to the 8-unaligned value. (Adding 4 * would work too but a logical OR is how the pseudocode specifies it.) */ if (xpsr & XPSR_SPREALIGN) { frameptr |= 4; } *frame_sp_p = frameptr; } /* This xpsr_write() will invalidate frame_sp_p as it may switch stack */ xpsr_write(env, xpsr, ~XPSR_SPREALIGN); /* The restored xPSR exception field will be zero if we're * resuming in Thread mode. If that doesn't match what the * exception return excret specified then this is a UsageFault. * v7M requires we make this check here; v8M did it earlier. */ if (return_to_handler != arm_v7m_is_handler_mode(env)) { /* Take an INVPC UsageFault by pushing the stack again; * we know we're v7M so this is never a Secure UsageFault. */ assert(!arm_feature(env, ARM_FEATURE_V8)); armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_USAGE, false); env->v7m.cfsr[env->v7m.secure] |= R_V7M_CFSR_INVPC_MASK; v7m_push_stack(cpu); v7m_exception_taken(cpu, excret); qemu_log_mask(CPU_LOG_INT, "...taking UsageFault on new stackframe: " "failed exception return integrity check\n"); return; } /* Otherwise, we have a successful exception exit. */ arm_clear_exclusive(env); qemu_log_mask(CPU_LOG_INT, "...successful exception return\n"); }

qemu

d3392718e1fcf0859fb7c0774a8e946bacb8419c

static int ff_filter_frame_framed(AVFilterLink *link, AVFrame *frame) { int (*filter_frame)(AVFilterLink *, AVFrame *); AVFilterContext *dstctx = link->dst; AVFilterPad *dst = link->dstpad; AVFrame *out; int ret; AVFilterCommand *cmd= link->dst->command_queue; int64_t pts; if (link->closed) { av_frame_free(&frame); return AVERROR_EOF; } if (!(filter_frame = dst->filter_frame)) filter_frame = default_filter_frame; /* copy the frame if needed */ if (dst->needs_writable && !av_frame_is_writable(frame)) { av_log(link->dst, AV_LOG_DEBUG, "Copying data in avfilter.\n"); /* Maybe use ff_copy_buffer_ref instead? */ switch (link->type) { case AVMEDIA_TYPE_VIDEO: out = ff_get_video_buffer(link, link->w, link->h); break; case AVMEDIA_TYPE_AUDIO: out = ff_get_audio_buffer(link, frame->nb_samples); break; default: ret = AVERROR(EINVAL); goto fail; } if (!out) { ret = AVERROR(ENOMEM); goto fail; } ret = av_frame_copy_props(out, frame); if (ret < 0) goto fail; switch (link->type) { case AVMEDIA_TYPE_VIDEO: av_image_copy(out->data, out->linesize, (const uint8_t **)frame->data, frame->linesize, frame->format, frame->width, frame->height); break; case AVMEDIA_TYPE_AUDIO: av_samples_copy(out->extended_data, frame->extended_data, 0, 0, frame->nb_samples, av_get_channel_layout_nb_channels(frame->channel_layout), frame->format); break; default: ret = AVERROR(EINVAL); goto fail; } av_frame_free(&frame); } else out = frame; while(cmd && cmd->time <= out->pts * av_q2d(link->time_base)){ av_log(link->dst, AV_LOG_DEBUG, "Processing command time:%f command:%s arg:%s\n", cmd->time, cmd->command, cmd->arg); avfilter_process_command(link->dst, cmd->command, cmd->arg, 0, 0, cmd->flags); ff_command_queue_pop(link->dst); cmd= link->dst->command_queue; } pts = out->pts; if (dstctx->enable_str) { int64_t pos = av_frame_get_pkt_pos(out); dstctx->var_values[VAR_N] = link->frame_count; dstctx->var_values[VAR_T] = pts == AV_NOPTS_VALUE ? NAN : pts * av_q2d(link->time_base); dstctx->var_values[VAR_POS] = pos == -1 ? NAN : pos; dstctx->is_disabled = fabs(av_expr_eval(dstctx->enable, dstctx->var_values, NULL)) < 0.5; if (dstctx->is_disabled && (dstctx->filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC)) filter_frame = default_filter_frame; } ret = filter_frame(link, out); link->frame_count++; link->frame_requested = 0; ff_update_link_current_pts(link, pts); return ret; fail: av_frame_free(&out); av_frame_free(&frame); return ret; }

FFmpeg

41003da94a59cd014d05b3dd1d33a5f9ecf3ccda

static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift) { int a0, a1, a2, a3, b0, b1, b2, b3; #if HAVE_FAST_64BIT #define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN) if (((((uint64_t *)row)[0] & ~ROW0_MASK) | ((uint64_t *)row)[1]) == 0) { uint64_t temp; if (DC_SHIFT - extra_shift > 0) { temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff; } else { temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff; } temp += temp << 16; temp += temp << 32; ((uint64_t *)row)[0] = temp; ((uint64_t *)row)[1] = temp; return; } #else if (!(((uint32_t*)row)[1] | ((uint32_t*)row)[2] | ((uint32_t*)row)[3] | row[1])) { uint32_t temp; if (DC_SHIFT - extra_shift > 0) { temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff; } else { temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff; } temp += temp << 16; ((uint32_t*)row)[0]=((uint32_t*)row)[1] = ((uint32_t*)row)[2]=((uint32_t*)row)[3] = temp; return; } #endif a0 = (W4 * row[0]) + (1 << (ROW_SHIFT - 1)); a1 = a0; a2 = a0; a3 = a0; a0 += W2 * row[2]; a1 += W6 * row[2]; a2 -= W6 * row[2]; a3 -= W2 * row[2]; b0 = MUL(W1, row[1]); MAC(b0, W3, row[3]); b1 = MUL(W3, row[1]); MAC(b1, -W7, row[3]); b2 = MUL(W5, row[1]); MAC(b2, -W1, row[3]); b3 = MUL(W7, row[1]); MAC(b3, -W5, row[3]); if (AV_RN64A(row + 4)) { a0 += W4*row[4] + W6*row[6]; a1 += - W4*row[4] - W2*row[6]; a2 += - W4*row[4] + W2*row[6]; a3 += W4*row[4] - W6*row[6]; MAC(b0, W5, row[5]); MAC(b0, W7, row[7]); MAC(b1, -W1, row[5]); MAC(b1, -W5, row[7]); MAC(b2, W7, row[5]); MAC(b2, W3, row[7]); MAC(b3, W3, row[5]); MAC(b3, -W1, row[7]); } row[0] = (a0 + b0) >> (ROW_SHIFT + extra_shift); row[7] = (a0 - b0) >> (ROW_SHIFT + extra_shift); row[1] = (a1 + b1) >> (ROW_SHIFT + extra_shift); row[6] = (a1 - b1) >> (ROW_SHIFT + extra_shift); row[2] = (a2 + b2) >> (ROW_SHIFT + extra_shift); row[5] = (a2 - b2) >> (ROW_SHIFT + extra_shift); row[3] = (a3 + b3) >> (ROW_SHIFT + extra_shift); row[4] = (a3 - b3) >> (ROW_SHIFT + extra_shift); }

FFmpeg

1389b4c18d1042c196603ba66c25113bcee1738b

static int io_write_data_type(void *opaque, uint8_t *buf, int size, enum AVIODataMarkerType type, int64_t time) { char timebuf[30], content[5] = { 0 }; const char *str; switch (type) { case AVIO_DATA_MARKER_HEADER: str = "header"; break; case AVIO_DATA_MARKER_SYNC_POINT: str = "sync"; break; case AVIO_DATA_MARKER_BOUNDARY_POINT: str = "boundary"; break; case AVIO_DATA_MARKER_UNKNOWN: str = "unknown"; break; case AVIO_DATA_MARKER_TRAILER: str = "trailer"; break; } if (time == AV_NOPTS_VALUE) snprintf(timebuf, sizeof(timebuf), "nopts"); else snprintf(timebuf, sizeof(timebuf), "%"PRId64, time); // There can be multiple header/trailer callbacks, only log the box type // for header at out_size == 0 if (type != AVIO_DATA_MARKER_UNKNOWN && type != AVIO_DATA_MARKER_TRAILER && (type != AVIO_DATA_MARKER_HEADER || out_size == 0) && size >= 8) memcpy(content, &buf[4], 4); else snprintf(content, sizeof(content), "-"); printf("write_data len %d, time %s, type %s atom %s\n", size, timebuf, str, content); return io_write(opaque, buf, size); }

FFmpeg

de6a1e32fd483db05d957268d5e45e2b1be9cab4

static void release_buffer(AVCodecContext *avctx, AVFrame *pic) { int i; CVPixelBufferRef cv_buffer = (CVPixelBufferRef)pic->data[3]; CVPixelBufferUnlockBaseAddress(cv_buffer, 0); CVPixelBufferRelease(cv_buffer); for (i = 0; i < 4; i++) pic->data[i] = NULL; }

FFmpeg

c7269e3a2697c189c907832b8a36341cbb40936c

AVOption *av_set_string(void *obj, const char *name, const char *val){ AVOption *o= find_opt(obj, name); if(!o || !val || o->offset<=0) return NULL; if(o->type != FF_OPT_TYPE_STRING){ double d=0, tmp_d; for(;;){ int i; char buf[256], *tail; for(i=0; i<sizeof(buf)-1 && val[i] && val[i]!='+'; i++) buf[i]= val[i]; buf[i]=0; val+= i; tmp_d= av_parse_num(buf, &tail); if(tail > buf) d+= tmp_d; else{ AVOption *o_named= find_opt(obj, buf); if(o_named && o_named->type == FF_OPT_TYPE_CONST) d+= o_named->default_val; else if(!strcmp(buf, "default")) d+= o->default_val; else if(!strcmp(buf, "max" )) d+= o->max; else if(!strcmp(buf, "min" )) d+= o->min; else return NULL; } if(*val == '+') val++; if(!*val) return av_set_number(obj, name, d, 1, 1); } return NULL; } memcpy(((uint8_t*)obj) + o->offset, val, sizeof(val)); return o; }

FFmpeg

233f6f889ea310c2213f1f678b68e424791bf843

static void qed_aio_write_alloc(QEDAIOCB *acb, size_t len) { BDRVQEDState *s = acb_to_s(acb); /* Freeze this request if another allocating write is in progress */ if (acb != QSIMPLEQ_FIRST(&s->allocating_write_reqs)) { QSIMPLEQ_INSERT_TAIL(&s->allocating_write_reqs, acb, next); } if (acb != QSIMPLEQ_FIRST(&s->allocating_write_reqs)) { return; /* wait for existing request to finish */ } acb->cur_nclusters = qed_bytes_to_clusters(s, qed_offset_into_cluster(s, acb->cur_pos) + len); acb->cur_cluster = qed_alloc_clusters(s, acb->cur_nclusters); qemu_iovec_copy(&acb->cur_qiov, acb->qiov, acb->qiov_offset, len); if (qed_should_set_need_check(s)) { s->header.features |= QED_F_NEED_CHECK; qed_write_header(s, qed_aio_write_prefill, acb); } else { qed_aio_write_prefill(acb, 0); } }

qemu

6f321e93abb27b4e7ceb228b4204aa304e95daad

static int parse_numa(void *opaque, QemuOpts *opts, Error **errp) { NumaOptions *object = NULL; Error *err = NULL; { Visitor *v = opts_visitor_new(opts); visit_type_NumaOptions(v, NULL, &object, &err); visit_free(v); } if (err) { goto error; } switch (object->type) { case NUMA_OPTIONS_KIND_NODE: numa_node_parse(object->u.node.data, opts, &err); if (err) { goto error; } nb_numa_nodes++; break; default: abort(); } return 0; error: error_report_err(err); qapi_free_NumaOptions(object); return -1; }

qemu

157e94e8a2f7d3e14060d833bd1519a83099eaa9

static uint8_t send_read_command(void) { uint8_t drive = 0; uint8_t head = 0; uint8_t cyl = 0; uint8_t sect_addr = 1; uint8_t sect_size = 2; uint8_t eot = 1; uint8_t gap = 0x1b; uint8_t gpl = 0xff; uint8_t msr = 0; uint8_t st0; uint8_t ret = 0; floppy_send(CMD_READ); floppy_send(head << 2 | drive); g_assert(!get_irq(FLOPPY_IRQ)); floppy_send(cyl); floppy_send(head); floppy_send(sect_addr); floppy_send(sect_size); floppy_send(eot); floppy_send(gap); floppy_send(gpl); uint8_t i = 0; uint8_t n = 2; for (; i < n; i++) { msr = inb(FLOPPY_BASE + reg_msr); if (msr == 0xd0) { break; } sleep(1); } if (i >= n) { return 1; } st0 = floppy_recv(); if (st0 != 0x40) { ret = 1; } floppy_recv(); floppy_recv(); floppy_recv(); floppy_recv(); floppy_recv(); floppy_recv(); return ret; }

qemu

6f442fe83821a06c5408056c7879e83a74f2ff32

static void trigger_ascii_console_data(void *opaque, int n, int level) { sclp_service_interrupt(0); }

qemu

b074e6220542107afb9fad480a184775be591d2a

static uint64_t bonito_readl(void *opaque, hwaddr addr, unsigned size) { PCIBonitoState *s = opaque; uint32_t saddr; saddr = (addr - BONITO_REGBASE) >> 2; DPRINTF("bonito_readl "TARGET_FMT_plx"\n", addr); switch (saddr) { case BONITO_INTISR: return s->regs[saddr]; default: return s->regs[saddr]; } }

qemu

0ca4f94195cce77b624edc6d9abcf14a3bf01f06

static int virtio_net_can_receive(void *opaque) { VirtIONet *n = opaque; return do_virtio_net_can_receive(n, VIRTIO_NET_MAX_BUFSIZE); }

qemu

e3f5ec2b5e92706e3b807059f79b1fb5d936e567

static void bt_hci_inquiry_result(struct bt_hci_s *hci, struct bt_device_s *slave) { if (!slave->inquiry_scan || !hci->lm.responses_left) return; hci->lm.responses_left --; hci->lm.responses ++; switch (hci->lm.inquiry_mode) { case 0x00: bt_hci_inquiry_result_standard(hci, slave); return; case 0x01: bt_hci_inquiry_result_with_rssi(hci, slave); return; default: fprintf(stderr, "%s: bad inquiry mode %02x\n", __FUNCTION__, hci->lm.inquiry_mode); exit(-1); } }

qemu

a89f364ae8740dfc31b321eed9ee454e996dc3c1

static uint32_t hpet_ram_readw(void *opaque, target_phys_addr_t addr) { printf("qemu: hpet_read w at %" PRIx64 "\n", addr); return 0; }

qemu

a8170e5e97ad17ca169c64ba87ae2f53850dab4c

gen_intermediate_code_internal(MicroBlazeCPU *cpu, TranslationBlock *tb, bool search_pc) { CPUState *cs = CPU(cpu); CPUMBState *env = &cpu->env; uint32_t pc_start; int j, lj; struct DisasContext ctx; struct DisasContext *dc = &ctx; uint32_t next_page_start, org_flags; target_ulong npc; int num_insns; int max_insns; pc_start = tb->pc; dc->cpu = cpu; dc->tb = tb; org_flags = dc->synced_flags = dc->tb_flags = tb->flags; dc->is_jmp = DISAS_NEXT; dc->jmp = 0; dc->delayed_branch = !!(dc->tb_flags & D_FLAG); if (dc->delayed_branch) { dc->jmp = JMP_INDIRECT; } dc->pc = pc_start; dc->singlestep_enabled = cs->singlestep_enabled; dc->cpustate_changed = 0; dc->abort_at_next_insn = 0; dc->nr_nops = 0; if (pc_start & 3) { cpu_abort(cs, "Microblaze: unaligned PC=%x\n", pc_start); } if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { #if !SIM_COMPAT qemu_log("--------------\n"); log_cpu_state(CPU(cpu), 0); #endif } next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; lj = -1; num_insns = 0; max_insns = tb->cflags & CF_COUNT_MASK; if (max_insns == 0) max_insns = CF_COUNT_MASK; gen_tb_start(tb); do { #if SIM_COMPAT if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc); gen_helper_debug(); } #endif check_breakpoint(env, dc); if (search_pc) { j = tcg_op_buf_count(); if (lj < j) { lj++; while (lj < j) tcg_ctx.gen_opc_instr_start[lj++] = 0; } tcg_ctx.gen_opc_pc[lj] = dc->pc; tcg_ctx.gen_opc_instr_start[lj] = 1; tcg_ctx.gen_opc_icount[lj] = num_insns; } /* Pretty disas. */ LOG_DIS("%8.8x:\t", dc->pc); if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) gen_io_start(); dc->clear_imm = 1; decode(dc, cpu_ldl_code(env, dc->pc)); if (dc->clear_imm) dc->tb_flags &= ~IMM_FLAG; dc->pc += 4; num_insns++; if (dc->delayed_branch) { dc->delayed_branch--; if (!dc->delayed_branch) { if (dc->tb_flags & DRTI_FLAG) do_rti(dc); if (dc->tb_flags & DRTB_FLAG) do_rtb(dc); if (dc->tb_flags & DRTE_FLAG) do_rte(dc); /* Clear the delay slot flag. */ dc->tb_flags &= ~D_FLAG; /* If it is a direct jump, try direct chaining. */ if (dc->jmp == JMP_INDIRECT) { eval_cond_jmp(dc, env_btarget, tcg_const_tl(dc->pc)); dc->is_jmp = DISAS_JUMP; } else if (dc->jmp == JMP_DIRECT) { t_sync_flags(dc); gen_goto_tb(dc, 0, dc->jmp_pc); dc->is_jmp = DISAS_TB_JUMP; } else if (dc->jmp == JMP_DIRECT_CC) { int l1; t_sync_flags(dc); l1 = gen_new_label(); /* Conditional jmp. */ tcg_gen_brcondi_tl(TCG_COND_NE, env_btaken, 0, l1); gen_goto_tb(dc, 1, dc->pc); gen_set_label(l1); gen_goto_tb(dc, 0, dc->jmp_pc); dc->is_jmp = DISAS_TB_JUMP; } break; } } if (cs->singlestep_enabled) { break; } } while (!dc->is_jmp && !dc->cpustate_changed && !tcg_op_buf_full() && !singlestep && (dc->pc < next_page_start) && num_insns < max_insns); npc = dc->pc; if (dc->jmp == JMP_DIRECT || dc->jmp == JMP_DIRECT_CC) { if (dc->tb_flags & D_FLAG) { dc->is_jmp = DISAS_UPDATE; tcg_gen_movi_tl(cpu_SR[SR_PC], npc); sync_jmpstate(dc); } else npc = dc->jmp_pc; } if (tb->cflags & CF_LAST_IO) gen_io_end(); /* Force an update if the per-tb cpu state has changed. */ if (dc->is_jmp == DISAS_NEXT && (dc->cpustate_changed || org_flags != dc->tb_flags)) { dc->is_jmp = DISAS_UPDATE; tcg_gen_movi_tl(cpu_SR[SR_PC], npc); } t_sync_flags(dc); if (unlikely(cs->singlestep_enabled)) { TCGv_i32 tmp = tcg_const_i32(EXCP_DEBUG); if (dc->is_jmp != DISAS_JUMP) { tcg_gen_movi_tl(cpu_SR[SR_PC], npc); } gen_helper_raise_exception(cpu_env, tmp); tcg_temp_free_i32(tmp); } else { switch(dc->is_jmp) { case DISAS_NEXT: gen_goto_tb(dc, 1, npc); break; default: case DISAS_JUMP: case DISAS_UPDATE: /* indicate that the hash table must be used to find the next TB */ tcg_gen_exit_tb(0); break; case DISAS_TB_JUMP: /* nothing more to generate */ break; } } gen_tb_end(tb, num_insns); if (search_pc) { j = tcg_op_buf_count(); lj++; while (lj <= j) tcg_ctx.gen_opc_instr_start[lj++] = 0; } else { tb->size = dc->pc - pc_start; tb->icount = num_insns; } #ifdef DEBUG_DISAS #if !SIM_COMPAT if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { qemu_log("\n"); #if DISAS_GNU log_target_disas(env, pc_start, dc->pc - pc_start, 0); #endif qemu_log("\nisize=%d osize=%d\n", dc->pc - pc_start, tcg_op_buf_count()); } #endif #endif assert(!dc->abort_at_next_insn); }

qemu

42a268c241183877192c376d03bd9b6d527407c7

static void test_bh_delete_from_cb_many(void) { BHTestData data1 = { .n = 0, .max = 1 }; BHTestData data2 = { .n = 0, .max = 3 }; BHTestData data3 = { .n = 0, .max = 2 }; BHTestData data4 = { .n = 0, .max = 4 }; data1.bh = aio_bh_new(ctx, bh_delete_cb, &data1); data2.bh = aio_bh_new(ctx, bh_delete_cb, &data2); data3.bh = aio_bh_new(ctx, bh_delete_cb, &data3); data4.bh = aio_bh_new(ctx, bh_delete_cb, &data4); qemu_bh_schedule(data1.bh); qemu_bh_schedule(data2.bh); qemu_bh_schedule(data3.bh); qemu_bh_schedule(data4.bh); g_assert_cmpint(data1.n, ==, 0); g_assert_cmpint(data2.n, ==, 0); g_assert_cmpint(data3.n, ==, 0); g_assert_cmpint(data4.n, ==, 0); g_assert(aio_poll(ctx, false)); g_assert_cmpint(data1.n, ==, 1); g_assert_cmpint(data2.n, ==, 1); g_assert_cmpint(data3.n, ==, 1); g_assert_cmpint(data4.n, ==, 1); g_assert(data1.bh == NULL); wait_for_aio(); g_assert_cmpint(data1.n, ==, data1.max); g_assert_cmpint(data2.n, ==, data2.max); g_assert_cmpint(data3.n, ==, data3.max); g_assert_cmpint(data4.n, ==, data4.max); g_assert(data1.bh == NULL); g_assert(data2.bh == NULL); g_assert(data3.bh == NULL); g_assert(data4.bh == NULL); }

qemu

acfb23ad3dd8d0ab385a10e483776ba7dcf927ad

static int raw_has_zero_init(BlockDriverState *bs) { return bdrv_has_zero_init(bs->file->bs); }

qemu

2e6fc7eb1a4af1b127df5f07b8bb28af891946fa

void bios_linker_loader_add_pointer(GArray *linker, const char *dest_file, const char *src_file, GArray *table, void *pointer, uint8_t pointer_size) { BiosLinkerLoaderEntry entry; memset(&entry, 0, sizeof entry); strncpy(entry.pointer.dest_file, dest_file, sizeof entry.pointer.dest_file - 1); strncpy(entry.pointer.src_file, src_file, sizeof entry.pointer.src_file - 1); entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ADD_POINTER); entry.pointer.offset = cpu_to_le32((gchar *)pointer - table->data); entry.pointer.size = pointer_size; assert(pointer_size == 1 || pointer_size == 2 || pointer_size == 4 || pointer_size == 8); g_array_append_val(linker, entry); }

qemu

fd8f5e37557596e14a859d8edf3dc24523bd4400

static void vga_draw_graphic(VGACommonState *s, int full_update) { int y1, y, update, linesize, y_start, double_scan, mask, depth; int width, height, shift_control, line_offset, bwidth, bits; ram_addr_t page0, page1, page_min, page_max; int disp_width, multi_scan, multi_run; uint8_t *d; uint32_t v, addr1, addr; vga_draw_line_func *vga_draw_line; full_update |= update_basic_params(s); if (!full_update) vga_sync_dirty_bitmap(s); s->get_resolution(s, &width, &height); disp_width = width; shift_control = (s->gr[VGA_GFX_MODE] >> 5) & 3; double_scan = (s->cr[VGA_CRTC_MAX_SCAN] >> 7); if (shift_control != 1) { multi_scan = (((s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1) << double_scan) - 1; } else { /* in CGA modes, multi_scan is ignored */ /* XXX: is it correct ? */ multi_scan = double_scan; } multi_run = multi_scan; if (shift_control != s->shift_control || double_scan != s->double_scan) { full_update = 1; s->shift_control = shift_control; s->double_scan = double_scan; } if (shift_control == 0) { if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { disp_width <<= 1; } } else if (shift_control == 1) { if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { disp_width <<= 1; } } depth = s->get_bpp(s); if (s->line_offset != s->last_line_offset || disp_width != s->last_width || height != s->last_height || s->last_depth != depth) { #if defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) if (depth == 16 || depth == 32) { #else if (depth == 32) { #endif qemu_free_displaysurface(s->ds); s->ds->surface = qemu_create_displaysurface_from(disp_width, height, depth, s->line_offset, s->vram_ptr + (s->start_addr * 4)); #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) s->ds->surface->pf = qemu_different_endianness_pixelformat(depth); #endif dpy_gfx_resize(s->ds); } else { qemu_console_resize(s->ds, disp_width, height); } s->last_scr_width = disp_width; s->last_scr_height = height; s->last_width = disp_width; s->last_height = height; s->last_line_offset = s->line_offset; s->last_depth = depth; full_update = 1; } else if (is_buffer_shared(s->ds->surface) && (full_update || ds_get_data(s->ds) != s->vram_ptr + (s->start_addr * 4))) { qemu_free_displaysurface(s->ds); s->ds->surface = qemu_create_displaysurface_from(disp_width, height, depth, s->line_offset, s->vram_ptr + (s->start_addr * 4)); dpy_gfx_setdata(s->ds); } s->rgb_to_pixel = rgb_to_pixel_dup_table[get_depth_index(s->ds)]; if (shift_control == 0) { full_update |= update_palette16(s); if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { v = VGA_DRAW_LINE4D2; } else { v = VGA_DRAW_LINE4; } bits = 4; } else if (shift_control == 1) { full_update |= update_palette16(s); if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { v = VGA_DRAW_LINE2D2; } else { v = VGA_DRAW_LINE2; } bits = 4; } else { switch(s->get_bpp(s)) { default: case 0: full_update |= update_palette256(s); v = VGA_DRAW_LINE8D2; bits = 4; break; case 8: full_update |= update_palette256(s); v = VGA_DRAW_LINE8; bits = 8; break; case 15: v = VGA_DRAW_LINE15; bits = 16; break; case 16: v = VGA_DRAW_LINE16; bits = 16; break; case 24: v = VGA_DRAW_LINE24; bits = 24; break; case 32: v = VGA_DRAW_LINE32; bits = 32; break; } } vga_draw_line = vga_draw_line_table[v * NB_DEPTHS + get_depth_index(s->ds)]; if (!is_buffer_shared(s->ds->surface) && s->cursor_invalidate) s->cursor_invalidate(s); line_offset = s->line_offset; #if 0 printf("w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\n", width, height, v, line_offset, s->cr[9], s->cr[VGA_CRTC_MODE], s->line_compare, s->sr[VGA_SEQ_CLOCK_MODE]); #endif addr1 = (s->start_addr * 4); bwidth = (width * bits + 7) / 8; y_start = -1; page_min = -1; page_max = 0; d = ds_get_data(s->ds); linesize = ds_get_linesize(s->ds); y1 = 0; for(y = 0; y < height; y++) { addr = addr1; if (!(s->cr[VGA_CRTC_MODE] & 1)) { int shift; /* CGA compatibility handling */ shift = 14 + ((s->cr[VGA_CRTC_MODE] >> 6) & 1); addr = (addr & ~(1 << shift)) | ((y1 & 1) << shift); } if (!(s->cr[VGA_CRTC_MODE] & 2)) { addr = (addr & ~0x8000) | ((y1 & 2) << 14); } update = full_update; page0 = addr; page1 = addr + bwidth - 1; update |= memory_region_get_dirty(&s->vram, page0, page1 - page0, DIRTY_MEMORY_VGA); /* explicit invalidation for the hardware cursor */ update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1; if (update) { if (y_start < 0) y_start = y; if (page0 < page_min) page_min = page0; if (page1 > page_max) page_max = page1; if (!(is_buffer_shared(s->ds->surface))) { vga_draw_line(s, d, s->vram_ptr + addr, width); if (s->cursor_draw_line) s->cursor_draw_line(s, d, y); } } else { if (y_start >= 0) { /* flush to display */ dpy_gfx_update(s->ds, 0, y_start, disp_width, y - y_start); y_start = -1; } } if (!multi_run) { mask = (s->cr[VGA_CRTC_MODE] & 3) ^ 3; if ((y1 & mask) == mask) addr1 += line_offset; y1++; multi_run = multi_scan; } else { multi_run--; } /* line compare acts on the displayed lines */ if (y == s->line_compare) addr1 = 0; d += linesize; } if (y_start >= 0) { /* flush to display */ dpy_gfx_update(s->ds, 0, y_start, disp_width, y - y_start); } /* reset modified pages */ if (page_max >= page_min) { memory_region_reset_dirty(&s->vram, page_min, page_max - page_min, DIRTY_MEMORY_VGA); } memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4); }

qemu

b1424e0381a7f1c9969079eca4458d5f20bf1859

static int ffm_write_header(AVFormatContext *s) { FFMContext *ffm = s->priv_data; AVStream *st; ByteIOContext *pb = s->pb; AVCodecContext *codec; int bit_rate, i; ffm->packet_size = FFM_PACKET_SIZE; /* header */ put_le32(pb, MKTAG('F', 'F', 'M', '1')); put_be32(pb, ffm->packet_size); /* XXX: store write position in other file ? */ put_be64(pb, ffm->packet_size); /* current write position */ put_be32(pb, s->nb_streams); bit_rate = 0; for(i=0;i<s->nb_streams;i++) { st = s->streams[i]; bit_rate += st->codec->bit_rate; } put_be32(pb, bit_rate); /* list of streams */ for(i=0;i<s->nb_streams;i++) { st = s->streams[i]; av_set_pts_info(st, 64, 1, 1000000); codec = st->codec; /* generic info */ put_be32(pb, codec->codec_id); put_byte(pb, codec->codec_type); put_be32(pb, codec->bit_rate); put_be32(pb, st->quality); put_be32(pb, codec->flags); put_be32(pb, codec->flags2); put_be32(pb, codec->debug); /* specific info */ switch(codec->codec_type) { case CODEC_TYPE_VIDEO: put_be32(pb, codec->time_base.num); put_be32(pb, codec->time_base.den); put_be16(pb, codec->width); put_be16(pb, codec->height); put_be16(pb, codec->gop_size); put_be32(pb, codec->pix_fmt); put_byte(pb, codec->qmin); put_byte(pb, codec->qmax); put_byte(pb, codec->max_qdiff); put_be16(pb, (int) (codec->qcompress * 10000.0)); put_be16(pb, (int) (codec->qblur * 10000.0)); put_be32(pb, codec->bit_rate_tolerance); put_strz(pb, codec->rc_eq); put_be32(pb, codec->rc_max_rate); put_be32(pb, codec->rc_min_rate); put_be32(pb, codec->rc_buffer_size); put_be64(pb, av_dbl2int(codec->i_quant_factor)); put_be64(pb, av_dbl2int(codec->b_quant_factor)); put_be64(pb, av_dbl2int(codec->i_quant_offset)); put_be64(pb, av_dbl2int(codec->b_quant_offset)); put_be32(pb, codec->dct_algo); put_be32(pb, codec->strict_std_compliance); put_be32(pb, codec->max_b_frames); put_be32(pb, codec->luma_elim_threshold); put_be32(pb, codec->chroma_elim_threshold); put_be32(pb, codec->mpeg_quant); put_be32(pb, codec->intra_dc_precision); put_be32(pb, codec->me_method); put_be32(pb, codec->mb_decision); put_be32(pb, codec->nsse_weight); put_be32(pb, codec->frame_skip_cmp); put_be64(pb, av_dbl2int(codec->rc_buffer_aggressivity)); put_be32(pb, codec->codec_tag); break; case CODEC_TYPE_AUDIO: put_be32(pb, codec->sample_rate); put_le16(pb, codec->channels); put_le16(pb, codec->frame_size); break; default: return -1; } } /* hack to have real time */ if (ffm_nopts) ffm->start_time = 0; else ffm->start_time = av_gettime(); /* flush until end of block reached */ while ((url_ftell(pb) % ffm->packet_size) != 0) put_byte(pb, 0); put_flush_packet(pb); /* init packet mux */ ffm->packet_ptr = ffm->packet; ffm->packet_end = ffm->packet + ffm->packet_size - FFM_HEADER_SIZE; assert(ffm->packet_end >= ffm->packet); ffm->frame_offset = 0; ffm->pts = 0; ffm->first_packet = 1; return 0; }

FFmpeg

3438d82d4b3bd987304975961e2a42e82767107d

static int usb_net_handle_datain(USBNetState *s, USBPacket *p) { int ret = USB_RET_NAK; if (s->in_ptr > s->in_len) { s->in_ptr = s->in_len = 0; ret = USB_RET_NAK; return ret; } if (!s->in_len) { ret = USB_RET_NAK; return ret; } ret = s->in_len - s->in_ptr; if (ret > p->iov.size) { ret = p->iov.size; } usb_packet_copy(p, &s->in_buf[s->in_ptr], ret); s->in_ptr += ret; if (s->in_ptr >= s->in_len && (is_rndis(s) || (s->in_len & (64 - 1)) || !ret)) { /* no short packet necessary */ s->in_ptr = s->in_len = 0; } #ifdef TRAFFIC_DEBUG fprintf(stderr, "usbnet: data in len %zu return %d", p->iov.size, ret); iov_hexdump(p->iov.iov, p->iov.niov, stderr, "usbnet", ret); #endif return ret; }

qemu

190563f9a90c9df8ad32fc7f3e4b166deda949a6

static void usb_msd_realize_storage(USBDevice *dev, Error **errp) { MSDState *s = USB_STORAGE_DEV(dev); BlockBackend *blk = s->conf.blk; SCSIDevice *scsi_dev; Error *err = NULL; if (!blk) { error_setg(errp, "drive property not set"); return; } bdrv_add_key(blk_bs(blk), NULL, &err); if (err) { if (monitor_cur_is_qmp()) { error_propagate(errp, err); return; } error_free(err); err = NULL; if (cur_mon) { monitor_read_bdrv_key_start(cur_mon, blk_bs(blk), usb_msd_password_cb, s); s->dev.auto_attach = 0; } else { autostart = 0; } } blkconf_serial(&s->conf, &dev->serial); blkconf_blocksizes(&s->conf); /* * Hack alert: this pretends to be a block device, but it's really * a SCSI bus that can serve only a single device, which it * creates automatically. But first it needs to detach from its * blockdev, or else scsi_bus_legacy_add_drive() dies when it * attaches again. * * The hack is probably a bad idea. */ blk_detach_dev(blk, &s->dev.qdev); s->conf.blk = NULL; usb_desc_create_serial(dev); usb_desc_init(dev); scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), &usb_msd_scsi_info_storage, NULL); scsi_dev = scsi_bus_legacy_add_drive(&s->bus, blk, 0, !!s->removable, s->conf.bootindex, dev->serial, &err); if (!scsi_dev) { error_propagate(errp, err); return; } usb_msd_handle_reset(dev); s->scsi_dev = scsi_dev; }

qemu

7d3467d903c0fa663fbe3f1002e7c624a210b634

static int usb_xhci_initfn(struct PCIDevice *dev) { int i, ret; XHCIState *xhci = DO_UPCAST(XHCIState, pci_dev, dev); xhci->pci_dev.config[PCI_CLASS_PROG] = 0x30; /* xHCI */ xhci->pci_dev.config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin 1 */ xhci->pci_dev.config[PCI_CACHE_LINE_SIZE] = 0x10; xhci->pci_dev.config[0x60] = 0x30; /* release number */ usb_xhci_init(xhci, &dev->qdev); if (xhci->numintrs > MAXINTRS) { xhci->numintrs = MAXINTRS; } if (xhci->numintrs < 1) { xhci->numintrs = 1; } if (xhci->numslots > MAXSLOTS) { xhci->numslots = MAXSLOTS; } if (xhci->numslots < 1) { xhci->numslots = 1; } xhci->mfwrap_timer = qemu_new_timer_ns(vm_clock, xhci_mfwrap_timer, xhci); xhci->irq = xhci->pci_dev.irq[0]; memory_region_init(&xhci->mem, "xhci", LEN_REGS); memory_region_init_io(&xhci->mem_cap, &xhci_cap_ops, xhci, "capabilities", LEN_CAP); memory_region_init_io(&xhci->mem_oper, &xhci_oper_ops, xhci, "operational", 0x400); memory_region_init_io(&xhci->mem_runtime, &xhci_runtime_ops, xhci, "runtime", LEN_RUNTIME); memory_region_init_io(&xhci->mem_doorbell, &xhci_doorbell_ops, xhci, "doorbell", LEN_DOORBELL); memory_region_add_subregion(&xhci->mem, 0, &xhci->mem_cap); memory_region_add_subregion(&xhci->mem, OFF_OPER, &xhci->mem_oper); memory_region_add_subregion(&xhci->mem, OFF_RUNTIME, &xhci->mem_runtime); memory_region_add_subregion(&xhci->mem, OFF_DOORBELL, &xhci->mem_doorbell); for (i = 0; i < xhci->numports; i++) { XHCIPort *port = &xhci->ports[i]; uint32_t offset = OFF_OPER + 0x400 + 0x10 * i; port->xhci = xhci; memory_region_init_io(&port->mem, &xhci_port_ops, port, port->name, 0x10); memory_region_add_subregion(&xhci->mem, offset, &port->mem); } pci_register_bar(&xhci->pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64, &xhci->mem); ret = pcie_cap_init(&xhci->pci_dev, 0xa0, PCI_EXP_TYPE_ENDPOINT, 0); assert(ret >= 0); if (xhci->flags & (1 << XHCI_FLAG_USE_MSI)) { msi_init(&xhci->pci_dev, 0x70, xhci->numintrs, true, false); } if (xhci->flags & (1 << XHCI_FLAG_USE_MSI_X)) { msix_init(&xhci->pci_dev, xhci->numintrs, &xhci->mem, 0, OFF_MSIX_TABLE, &xhci->mem, 0, OFF_MSIX_PBA, 0x90); } return 0; }

qemu

6214e73cc5b75a4f8d89a70d71727edfa47a81b3

void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n, bool is_write) { hwaddr addr, granularity; IOMMUTLBEntry iotlb; IOMMUAccessFlags flag = is_write ? IOMMU_WO : IOMMU_RO; /* If the IOMMU has its own replay callback, override */ if (mr->iommu_ops->replay) { mr->iommu_ops->replay(mr, n); return; } granularity = memory_region_iommu_get_min_page_size(mr); for (addr = 0; addr < memory_region_size(mr); addr += granularity) { iotlb = mr->iommu_ops->translate(mr, addr, flag); if (iotlb.perm != IOMMU_NONE) { n->notify(n, &iotlb); } /* if (2^64 - MR size) < granularity, it's possible to get an * infinite loop here. This should catch such a wraparound */ if ((addr + granularity) < addr) { break; } } }

qemu

ad523590f62cf5d44e97388de370d27b95b25aff

static void qmp_output_end_list(Visitor *v) { QmpOutputVisitor *qov = to_qov(v); qmp_output_pop(qov); }

qemu

56a6f02b8ce1fe41a2a9077593e46eca7d98267d

static av_cold int mpeg_mc_decode_init(AVCodecContext *avctx){ if( avctx->thread_count > 1) return -1; if( !(avctx->slice_flags & SLICE_FLAG_CODED_ORDER) ) return -1; if( !(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD) ){ av_dlog(avctx, "mpeg12.c: XvMC decoder will work better if SLICE_FLAG_ALLOW_FIELD is set\n"); } mpeg_decode_init(avctx); avctx->pix_fmt = PIX_FMT_XVMC_MPEG2_IDCT; avctx->xvmc_acceleration = 2;//2 - the blocks are packed! return 0; }

FFmpeg

508a24f8dc63e74bd9917e6f0c4cdbb744741ef0

static int avs_read_packet(AVFormatContext * s, AVPacket * pkt) { AvsFormat *avs = s->priv_data; int sub_type = 0, size = 0; AvsBlockType type = AVS_NONE; int palette_size = 0; uint8_t palette[4 + 3 * 256]; int ret; if (avs->remaining_audio_size > 0) if (avs_read_audio_packet(s, pkt) > 0) return 0; while (1) { if (avs->remaining_frame_size <= 0) { if (!avio_rl16(s->pb)) /* found EOF */ return AVERROR(EIO); avs->remaining_frame_size = avio_rl16(s->pb) - 4; } while (avs->remaining_frame_size > 0) { sub_type = avio_r8(s->pb); type = avio_r8(s->pb); size = avio_rl16(s->pb); if (size < 4) return AVERROR_INVALIDDATA; avs->remaining_frame_size -= size; switch (type) { case AVS_PALETTE: if (size - 4 > sizeof(palette)) return AVERROR_INVALIDDATA; ret = avio_read(s->pb, palette, size - 4); if (ret < size - 4) return AVERROR(EIO); palette_size = size; break; case AVS_VIDEO: if (!avs->st_video) { avs->st_video = avformat_new_stream(s, NULL); if (avs->st_video == NULL) return AVERROR(ENOMEM); avs->st_video->codec->codec_type = AVMEDIA_TYPE_VIDEO; avs->st_video->codec->codec_id = AV_CODEC_ID_AVS; avs->st_video->codec->width = avs->width; avs->st_video->codec->height = avs->height; avs->st_video->codec->bits_per_coded_sample=avs->bits_per_sample; avs->st_video->nb_frames = avs->nb_frames; avs->st_video->avg_frame_rate = (AVRational){avs->fps, 1}; } return avs_read_video_packet(s, pkt, type, sub_type, size, palette, palette_size); case AVS_AUDIO: if (!avs->st_audio) { avs->st_audio = avformat_new_stream(s, NULL); if (avs->st_audio == NULL) return AVERROR(ENOMEM); avs->st_audio->codec->codec_type = AVMEDIA_TYPE_AUDIO; } avs->remaining_audio_size = size - 4; size = avs_read_audio_packet(s, pkt); if (size != 0) return size; break; default: avio_skip(s->pb, size - 4); } } } }

FFmpeg

f929ab0569ff31ed5a59b0b0adb7ce09df3fca39

static void *file_ram_alloc(RAMBlock *block, ram_addr_t memory, const char *path) { char *filename; char *sanitized_name; char *c; void *area; int fd; unsigned long hpagesize; hpagesize = gethugepagesize(path); if (!hpagesize) { return NULL; } if (memory < hpagesize) { return NULL; } if (kvm_enabled() && !kvm_has_sync_mmu()) { fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); return NULL; } /* Make name safe to use with mkstemp by replacing '/' with '_'. */ sanitized_name = g_strdup(block->mr->name); for (c = sanitized_name; *c != '\0'; c++) { if (*c == '/') *c = '_'; } filename = g_strdup_printf("%s/qemu_back_mem.%s.XXXXXX", path, sanitized_name); g_free(sanitized_name); fd = mkstemp(filename); if (fd < 0) { perror("unable to create backing store for hugepages"); g_free(filename); return NULL; } unlink(filename); g_free(filename); memory = (memory+hpagesize-1) & ~(hpagesize-1); /* * ftruncate is not supported by hugetlbfs in older * hosts, so don't bother bailing out on errors. * If anything goes wrong with it under other filesystems, * mmap will fail. */ if (ftruncate(fd, memory)) perror("ftruncate"); area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); if (area == MAP_FAILED) { perror("file_ram_alloc: can't mmap RAM pages"); close(fd); return (NULL); } if (mem_prealloc) { int ret, i; struct sigaction act, oldact; sigset_t set, oldset; memset(&act, 0, sizeof(act)); act.sa_handler = &sigbus_handler; act.sa_flags = 0; ret = sigaction(SIGBUS, &act, &oldact); if (ret) { perror("file_ram_alloc: failed to install signal handler"); exit(1); } /* unblock SIGBUS */ sigemptyset(&set); sigaddset(&set, SIGBUS); pthread_sigmask(SIG_UNBLOCK, &set, &oldset); if (sigsetjmp(sigjump, 1)) { fprintf(stderr, "file_ram_alloc: failed to preallocate pages\n"); exit(1); } /* MAP_POPULATE silently ignores failures */ for (i = 0; i < (memory/hpagesize)-1; i++) { memset(area + (hpagesize*i), 0, 1); } ret = sigaction(SIGBUS, &oldact, NULL); if (ret) { perror("file_ram_alloc: failed to reinstall signal handler"); exit(1); } pthread_sigmask(SIG_SETMASK, &oldset, NULL); } block->fd = fd; return area; }

qemu

2ba82852894c762299b7d05e9a2be184116b80f0

static void boston_register_types(void) { type_register_static(&boston_device); }

qemu

2d896b454a0e19ec4c1ddbb0e0b65b7e54fcedf3

static gboolean nbd_accept(QIOChannel *ioc, GIOCondition condition, gpointer opaque) { QIOChannelSocket *cioc; if (!nbd_server) { return FALSE; } cioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc), NULL); if (!cioc) { return TRUE; } qio_channel_set_name(QIO_CHANNEL(cioc), "nbd-server"); nbd_client_new(NULL, cioc, nbd_server->tlscreds, NULL, nbd_client_put); object_unref(OBJECT(cioc)); return TRUE; }

qemu

0c9390d978cbf61e8f16c9f580fa96b305c43568

static int bfi_decode_frame(AVCodecContext * avctx, void *data, int *data_size, const uint8_t * buf, int buf_size) { BFIContext *bfi = avctx->priv_data; uint8_t *dst = bfi->dst; uint8_t *src, *dst_offset, colour1, colour2; uint8_t *frame_end = bfi->dst + avctx->width * avctx->height; uint32_t *pal; int i, j, height = avctx->height; if (bfi->frame.data[0]) avctx->release_buffer(avctx, &bfi->frame); bfi->frame.reference = 1; if (avctx->get_buffer(avctx, &bfi->frame) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } /* Set frame parameters and palette, if necessary */ if (!avctx->frame_number) { bfi->frame.pict_type = FF_I_TYPE; bfi->frame.key_frame = 1; /* Setting the palette */ if(avctx->extradata_size>768) { av_log(NULL, AV_LOG_ERROR, "Palette is too large.\n"); return -1; } pal = (uint32_t *) bfi->frame.data[1]; for (i = 0; i < avctx->extradata_size / 3; i++) { int shift = 16; *pal = 0; for (j = 0; j < 3; j++, shift -= 8) *pal += ((avctx->extradata[i * 3 + j] << 2) | (avctx->extradata[i * 3 + j] >> 4)) << shift; pal++; } bfi->frame.palette_has_changed = 1; } else { bfi->frame.pict_type = FF_P_TYPE; bfi->frame.key_frame = 0; } buf += 4; //Unpacked size, not required. while (dst != frame_end) { static const uint8_t lentab[4]={0,2,0,1}; unsigned int byte = *buf++, offset; unsigned int code = byte >> 6; unsigned int length = byte & ~0xC0; /* Get length and offset(if required) */ if (length == 0) { if (code == 1) { length = bytestream_get_byte(&buf); offset = bytestream_get_le16(&buf); } else { length = bytestream_get_le16(&buf); if (code == 2 && length == 0) break; } } else { if (code == 1) offset = bytestream_get_byte(&buf); } /* Do boundary check */ if (dst + (length<<lentab[code]) > frame_end) break; switch (code) { case 0: //Normal Chain bytestream_get_buffer(&buf, dst, length); dst += length; break; case 1: //Back Chain dst_offset = dst - offset; length *= 4; //Convert dwords to bytes. if (dst_offset < bfi->dst) break; while (length--) *dst++ = *dst_offset++; break; case 2: //Skip Chain dst += length; break; case 3: //Fill Chain colour1 = bytestream_get_byte(&buf); colour2 = bytestream_get_byte(&buf); while (length--) { *dst++ = colour1; *dst++ = colour2; } break; } } src = bfi->dst; dst = bfi->frame.data[0]; while (height--) { memcpy(dst, src, avctx->width); src += avctx->width; dst += bfi->frame.linesize[0]; } *data_size = sizeof(AVFrame); *(AVFrame *) data = bfi->frame; return buf_size; }

FFmpeg

79ff462e73e73591573bcd01e8ee6614b7ac1c69

bool block_job_user_paused(BlockJob *job) { return job ? job->user_paused : 0; }

qemu

6573d9c63885aaf533366ab5c68318d1cf1a0fcc

static void booke_decr_cb(void *opaque) { PowerPCCPU *cpu = opaque; CPUPPCState *env = &cpu->env; env->spr[SPR_BOOKE_TSR] |= TSR_DIS; booke_update_irq(cpu); if (env->spr[SPR_BOOKE_TCR] & TCR_ARE) { /* Auto Reload */ cpu_ppc_store_decr(env, env->spr[SPR_BOOKE_DECAR]); } }

qemu

0dfe952dc5c2921488a1172407857d5bb81d17a4

static char *read_splashfile(char *filename, size_t *file_sizep, int *file_typep) { GError *err = NULL; gboolean res; gchar *content; int file_type = -1; unsigned int filehead = 0; int bmp_bpp; res = g_file_get_contents(filename, &content, file_sizep, &err); if (res == FALSE) { error_report("failed to read splash file '%s'", filename); g_error_free(err); return NULL; } /* check file size */ if (*file_sizep < 30) { goto error; } /* check magic ID */ filehead = ((content[0] & 0xff) + (content[1] << 8)) & 0xffff; if (filehead == 0xd8ff) { file_type = JPG_FILE; } else if (filehead == 0x4d42) { file_type = BMP_FILE; } else { goto error; } /* check BMP bpp */ if (file_type == BMP_FILE) { bmp_bpp = (content[28] + (content[29] << 8)) & 0xffff; if (bmp_bpp != 24) { goto error; } } /* return values */ *file_typep = file_type; return content; error: error_report("splash file '%s' format not recognized; must be JPEG " "or 24 bit BMP", filename); g_free(content); return NULL; }

qemu

9f8863ebd7f584762a906881a62a04ac05ce4898

static void qemu_event_read(void *opaque) { int fd = (intptr_t)opaque; ssize_t len; char buffer[512]; /* Drain the notify pipe. For eventfd, only 8 bytes will be read. */ do { len = read(fd, buffer, sizeof(buffer)); } while ((len == -1 && errno == EINTR) || len == sizeof(buffer)); }

qemu

d3b12f5dec4b27ebab58fb5797cb67bacced773b

static int coreaudio_init_out (HWVoiceOut *hw, audsettings_t *as) { OSStatus status; coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw; UInt32 propertySize; int err; const char *typ = "playback"; AudioValueRange frameRange; /* create mutex */ err = pthread_mutex_init(&core->mutex, NULL); if (err) { dolog("Could not create mutex\nReason: %s\n", strerror (err)); return -1; } audio_pcm_init_info (&hw->info, as); /* open default output device */ propertySize = sizeof(core->outputDeviceID); status = AudioHardwareGetProperty( kAudioHardwarePropertyDefaultOutputDevice, &propertySize, &core->outputDeviceID); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not get default output Device\n"); return -1; } if (core->outputDeviceID == kAudioDeviceUnknown) { dolog ("Could not initialize %s - Unknown Audiodevice\n", typ); return -1; } /* get minimum and maximum buffer frame sizes */ propertySize = sizeof(frameRange); status = AudioDeviceGetProperty( core->outputDeviceID, 0, 0, kAudioDevicePropertyBufferFrameSizeRange, &propertySize, &frameRange); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not get device buffer frame range\n"); return -1; } if (frameRange.mMinimum > conf.buffer_frames) { core->audioDevicePropertyBufferFrameSize = (UInt32) frameRange.mMinimum; dolog ("warning: Upsizing Buffer Frames to %f\n", frameRange.mMinimum); } else if (frameRange.mMaximum < conf.buffer_frames) { core->audioDevicePropertyBufferFrameSize = (UInt32) frameRange.mMaximum; dolog ("warning: Downsizing Buffer Frames to %f\n", frameRange.mMaximum); } else { core->audioDevicePropertyBufferFrameSize = conf.buffer_frames; } /* set Buffer Frame Size */ propertySize = sizeof(core->audioDevicePropertyBufferFrameSize); status = AudioDeviceSetProperty( core->outputDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, propertySize, &core->audioDevicePropertyBufferFrameSize); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not set device buffer frame size %ld\n", core->audioDevicePropertyBufferFrameSize); return -1; } /* get Buffer Frame Size */ propertySize = sizeof(core->audioDevicePropertyBufferFrameSize); status = AudioDeviceGetProperty( core->outputDeviceID, 0, false, kAudioDevicePropertyBufferFrameSize, &propertySize, &core->audioDevicePropertyBufferFrameSize); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not get device buffer frame size\n"); return -1; } hw->samples = conf.nbuffers * core->audioDevicePropertyBufferFrameSize; /* get StreamFormat */ propertySize = sizeof(core->outputStreamBasicDescription); status = AudioDeviceGetProperty( core->outputDeviceID, 0, false, kAudioDevicePropertyStreamFormat, &propertySize, &core->outputStreamBasicDescription); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not get Device Stream properties\n"); core->outputDeviceID = kAudioDeviceUnknown; return -1; } /* set Samplerate */ core->outputStreamBasicDescription.mSampleRate = (Float64) as->freq; propertySize = sizeof(core->outputStreamBasicDescription); status = AudioDeviceSetProperty( core->outputDeviceID, 0, 0, 0, kAudioDevicePropertyStreamFormat, propertySize, &core->outputStreamBasicDescription); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not set samplerate %d\n", as->freq); core->outputDeviceID = kAudioDeviceUnknown; return -1; } /* set Callback */ status = AudioDeviceAddIOProc(core->outputDeviceID, audioDeviceIOProc, hw); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not set IOProc\n"); core->outputDeviceID = kAudioDeviceUnknown; return -1; } /* start Playback */ if (!isPlaying(core->outputDeviceID)) { status = AudioDeviceStart(core->outputDeviceID, audioDeviceIOProc); if (status != kAudioHardwareNoError) { coreaudio_logerr2 (status, typ, "Could not start playback\n"); AudioDeviceRemoveIOProc(core->outputDeviceID, audioDeviceIOProc); core->outputDeviceID = kAudioDeviceUnknown; return -1; } } return 0; }

qemu

1ea879e5580f63414693655fcf0328559cdce138

void tcg_region_init(void) { void *buf = tcg_init_ctx.code_gen_buffer; void *aligned; size_t size = tcg_init_ctx.code_gen_buffer_size; size_t page_size = qemu_real_host_page_size; size_t region_size; size_t n_regions; size_t i; /* We do not yet support multiple TCG contexts, so use one region for now */ n_regions = 1; /* The first region will be 'aligned - buf' bytes larger than the others */ aligned = QEMU_ALIGN_PTR_UP(buf, page_size); g_assert(aligned < tcg_init_ctx.code_gen_buffer + size); /* * Make region_size a multiple of page_size, using aligned as the start. * As a result of this we might end up with a few extra pages at the end of * the buffer; we will assign those to the last region. */ region_size = (size - (aligned - buf)) / n_regions; region_size = QEMU_ALIGN_DOWN(region_size, page_size); /* A region must have at least 2 pages; one code, one guard */ g_assert(region_size >= 2 * page_size); /* init the region struct */ qemu_mutex_init(&region.lock); region.n = n_regions; region.size = region_size - page_size; region.stride = region_size; region.start = buf; region.start_aligned = aligned; /* page-align the end, since its last page will be a guard page */ region.end = QEMU_ALIGN_PTR_DOWN(buf + size, page_size); /* account for that last guard page */ region.end -= page_size; /* set guard pages */ for (i = 0; i < region.n; i++) { void *start, *end; int rc; tcg_region_bounds(i, &start, &end); rc = qemu_mprotect_none(end, page_size); g_assert(!rc); } /* We do not yet support multiple TCG contexts so allocate the region now */ { bool err = tcg_region_initial_alloc__locked(tcg_ctx); g_assert(!err); } }

qemu

3468b59e18b179bc63c7ce934de912dfa9596122

static int vt82c686b_ac97_initfn(PCIDevice *dev) { VT686AC97State *s = DO_UPCAST(VT686AC97State, dev, dev); uint8_t *pci_conf = s->dev.config; pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_VIA); pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_VIA_AC97); pci_config_set_class(pci_conf, PCI_CLASS_MULTIMEDIA_AUDIO); pci_config_set_revision(pci_conf, 0x50); pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY); pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_CAP_LIST | PCI_STATUS_DEVSEL_MEDIUM); pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03); return 0; }

qemu

1cf0d2b8352a2df35919030b84dbfc713ee9b9be

void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent) { SysBusDevice *s = sysbus_from_qdev(dev); int i; for (i = 0; i < s->num_mmio; i++) { monitor_printf(mon, "%*smmio " TARGET_FMT_plx "/" TARGET_FMT_plx "\n", indent, "", s->mmio[i].addr, s->mmio[i].size); } }

qemu

10c4c98ab7dc18169b37b76f6ea5e60ebe65222b

static void handle_arg_reserved_va(const char *arg) { char *p; int shift = 0; reserved_va = strtoul(arg, &p, 0); switch (*p) { case 'k': case 'K': shift = 10; break; case 'M': shift = 20; break; case 'G': shift = 30; break; } if (shift) { unsigned long unshifted = reserved_va; p++; reserved_va <<= shift; if (((reserved_va >> shift) != unshifted) #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) #endif ) { fprintf(stderr, "Reserved virtual address too big\n"); exit(EXIT_FAILURE); } } if (*p) { fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p); exit(EXIT_FAILURE); } }

qemu

18e80c55bb6ec17c05ec0ba717ec83933c2bfc07

void spapr_events_init(sPAPRMachineState *spapr) { QTAILQ_INIT(&spapr->pending_events); spapr->check_exception_irq = xics_spapr_alloc(spapr->xics, 0, false, &error_fatal); spapr->epow_notifier.notify = spapr_powerdown_req; qemu_register_powerdown_notifier(&spapr->epow_notifier); spapr_rtas_register(RTAS_CHECK_EXCEPTION, "check-exception", check_exception); spapr_rtas_register(RTAS_EVENT_SCAN, "event-scan", event_scan); }

qemu

ffbb1705a33df8e2fb12b24d96663d63b22eaf8b

static void bdrv_co_maybe_schedule_bh(BlockAIOCBCoroutine *acb) { acb->need_bh = false; if (acb->req.error != -EINPROGRESS) { BlockDriverState *bs = acb->common.bs; acb->bh = aio_bh_new(bdrv_get_aio_context(bs), bdrv_co_em_bh, acb); qemu_bh_schedule(acb->bh); } }

qemu

61007b316cd71ee7333ff7a0a749a8949527575f

static void xlnx_zynqmp_init(Object *obj) { XlnxZynqMPState *s = XLNX_ZYNQMP(obj); int i; for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) { object_initialize(&s->apu_cpu[i], sizeof(s->apu_cpu[i]), "cortex-a53-" TYPE_ARM_CPU); object_property_add_child(obj, "apu-cpu[*]", OBJECT(&s->apu_cpu[i]), &error_abort); } for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) { object_initialize(&s->rpu_cpu[i], sizeof(s->rpu_cpu[i]), "cortex-r5-" TYPE_ARM_CPU); object_property_add_child(obj, "rpu-cpu[*]", OBJECT(&s->rpu_cpu[i]), &error_abort); } object_property_add_link(obj, "ddr-ram", TYPE_MEMORY_REGION, (Object **)&s->ddr_ram, qdev_prop_allow_set_link_before_realize, OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort); object_initialize(&s->gic, sizeof(s->gic), TYPE_ARM_GIC); qdev_set_parent_bus(DEVICE(&s->gic), sysbus_get_default()); for (i = 0; i < XLNX_ZYNQMP_NUM_GEMS; i++) { object_initialize(&s->gem[i], sizeof(s->gem[i]), TYPE_CADENCE_GEM); qdev_set_parent_bus(DEVICE(&s->gem[i]), sysbus_get_default()); } for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) { object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_CADENCE_UART); qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default()); } object_initialize(&s->sata, sizeof(s->sata), TYPE_SYSBUS_AHCI); qdev_set_parent_bus(DEVICE(&s->sata), sysbus_get_default()); for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) { object_initialize(&s->sdhci[i], sizeof(s->sdhci[i]), TYPE_SYSBUS_SDHCI); qdev_set_parent_bus(DEVICE(&s->sdhci[i]), sysbus_get_default()); } for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) { object_initialize(&s->spi[i], sizeof(s->spi[i]), TYPE_XILINX_SPIPS); qdev_set_parent_bus(DEVICE(&s->spi[i]), sysbus_get_default()); } }

qemu

6ed92b14f610c78aea52b087d6bdc59a3f2de72a

static int thread_execute(AVCodecContext *avctx, action_func* func, void *arg, int *ret, int job_count, int job_size) { SliceThreadContext *c = avctx->internal->thread_ctx; int dummy_ret; if (!(avctx->active_thread_type&FF_THREAD_SLICE) || avctx->thread_count <= 1) return avcodec_default_execute(avctx, func, arg, ret, job_count, job_size); if (job_count <= 0) return 0; pthread_mutex_lock(&c->current_job_lock); c->current_job = avctx->thread_count; c->job_count = job_count; c->job_size = job_size; c->args = arg; c->func = func; if (ret) { c->rets = ret; c->rets_count = job_count; } else { c->rets = &dummy_ret; c->rets_count = 1; } c->current_execute++; pthread_cond_broadcast(&c->current_job_cond); thread_park_workers(c, avctx->thread_count); return 0; }

FFmpeg

50ce510ac4e3ed093c051738242a9a75aeeb36ce

static int xen_pt_config_reg_init(XenPCIPassthroughState *s, XenPTRegGroup *reg_grp, XenPTRegInfo *reg) { XenPTReg *reg_entry; uint32_t data = 0; int rc = 0; reg_entry = g_new0(XenPTReg, 1); reg_entry->reg = reg; if (reg->init) { uint32_t host_mask, size_mask; unsigned int offset; uint32_t val; /* initialize emulate register */ rc = reg->init(s, reg_entry->reg, reg_grp->base_offset + reg->offset, &data); if (rc < 0) { g_free(reg_entry); return rc; } if (data == XEN_PT_INVALID_REG) { /* free unused BAR register entry */ g_free(reg_entry); return 0; } /* Sync up the data to dev.config */ offset = reg_grp->base_offset + reg->offset; size_mask = 0xFFFFFFFF >> ((4 - reg->size) << 3); switch (reg->size) { case 1: rc = xen_host_pci_get_byte(&s->real_device, offset, (uint8_t *)&val); break; case 2: rc = xen_host_pci_get_word(&s->real_device, offset, (uint16_t *)&val); break; case 4: rc = xen_host_pci_get_long(&s->real_device, offset, &val); break; default: assert(1); } if (rc) { /* Serious issues when we cannot read the host values! */ g_free(reg_entry); return rc; } /* Set bits in emu_mask are the ones we emulate. The dev.config shall * contain the emulated view of the guest - therefore we flip the mask * to mask out the host values (which dev.config initially has) . */ host_mask = size_mask & ~reg->emu_mask; if ((data & host_mask) != (val & host_mask)) { uint32_t new_val; /* Mask out host (including past size). */ new_val = val & host_mask; /* Merge emulated ones (excluding the non-emulated ones). */ new_val |= data & host_mask; /* Leave intact host and emulated values past the size - even though * we do not care as we write per reg->size granularity, but for the * logging below lets have the proper value. */ new_val |= ((val | data)) & ~size_mask; XEN_PT_LOG(&s->dev,"Offset 0x%04x mismatch! Emulated=0x%04x, host=0x%04x, syncing to 0x%04x.\n", offset, data, val, new_val); val = new_val; } else val = data; /* This could be just pci_set_long as we don't modify the bits * past reg->size, but in case this routine is run in parallel * we do not want to over-write other registers. */ switch (reg->size) { case 1: pci_set_byte(s->dev.config + offset, (uint8_t)val); break; case 2: pci_set_word(s->dev.config + offset, (uint16_t)val); break; case 4: pci_set_long(s->dev.config + offset, val); break; default: assert(1); } /* set register value */ reg_entry->data = val; } /* list add register entry */ QLIST_INSERT_HEAD(&reg_grp->reg_tbl_list, reg_entry, entries); return 0; }

qemu

5b4dd0f55ed3027557ed9a6fd89d5aa379122feb

static void chs_assemble_msbs_lsbs(DCAXllDecoder *s, DCAXllChSet *c, int band) { DCAXllBand *b = &c->bands[band]; int n, ch, nsamples = s->nframesamples; for (ch = 0; ch < c->nchannels; ch++) { int shift = chs_get_lsb_width(s, c, band, ch); if (shift) { int32_t *msb = b->msb_sample_buffer[ch]; if (b->nscalablelsbs[ch]) { int32_t *lsb = b->lsb_sample_buffer[ch]; int adj = b->bit_width_adjust[ch]; for (n = 0; n < nsamples; n++) msb[n] = msb[n] * (1 << shift) + (lsb[n] << adj); } else { for (n = 0; n < nsamples; n++) msb[n] = msb[n] * (1 << shift); } } } }

FFmpeg

e8a3498f2452ba2be605b1ffb5974143095aacf1

static void coroutine_fn send_pending_req(BDRVSheepdogState *s, uint64_t oid) { AIOReq *aio_req; SheepdogAIOCB *acb; while ((aio_req = find_pending_req(s, oid)) != NULL) { acb = aio_req->aiocb; /* move aio_req from pending list to inflight one */ QLIST_REMOVE(aio_req, aio_siblings); QLIST_INSERT_HEAD(&s->inflight_aio_head, aio_req, aio_siblings); add_aio_request(s, aio_req, acb->qiov->iov, acb->qiov->niov, false, acb->aiocb_type); } }

qemu

b544c1aba8681c2fe5d6715fbd37cf6caf1bc7bb

static av_cold int vqa_decode_init(AVCodecContext *avctx) { VqaContext *s = avctx->priv_data; unsigned char *vqa_header; int i, j, codebook_index; s->avctx = avctx; avctx->pix_fmt = PIX_FMT_PAL8; /* make sure the extradata made it */ if (s->avctx->extradata_size != VQA_HEADER_SIZE) { av_log(s->avctx, AV_LOG_ERROR, " VQA video: expected extradata size of %d\n", VQA_HEADER_SIZE); return -1; } /* load up the VQA parameters from the header */ vqa_header = (unsigned char *)s->avctx->extradata; s->vqa_version = vqa_header[0]; s->width = AV_RL16(&vqa_header[6]); s->height = AV_RL16(&vqa_header[8]); if(av_image_check_size(s->width, s->height, 0, avctx)){ s->width= s->height= 0; return -1; } s->vector_width = vqa_header[10]; s->vector_height = vqa_header[11]; s->partial_count = s->partial_countdown = vqa_header[13]; /* the vector dimensions have to meet very stringent requirements */ if ((s->vector_width != 4) || ((s->vector_height != 2) && (s->vector_height != 4))) { /* return without further initialization */ return -1; } /* allocate codebooks */ s->codebook_size = MAX_CODEBOOK_SIZE; s->codebook = av_malloc(s->codebook_size); if (!s->codebook) goto fail; s->next_codebook_buffer = av_malloc(s->codebook_size); if (!s->next_codebook_buffer) goto fail; /* allocate decode buffer */ s->decode_buffer_size = (s->width / s->vector_width) * (s->height / s->vector_height) * 2; s->decode_buffer = av_malloc(s->decode_buffer_size); if (!s->decode_buffer) goto fail; /* initialize the solid-color vectors */ if (s->vector_height == 4) { codebook_index = 0xFF00 * 16; for (i = 0; i < 256; i++) for (j = 0; j < 16; j++) s->codebook[codebook_index++] = i; } else { codebook_index = 0xF00 * 8; for (i = 0; i < 256; i++) for (j = 0; j < 8; j++) s->codebook[codebook_index++] = i; } s->next_codebook_buffer_index = 0; s->frame.data[0] = NULL; return 0; fail: av_freep(&s->codebook); av_freep(&s->next_codebook_buffer); av_freep(&s->decode_buffer); return AVERROR(ENOMEM); }

FFmpeg

5a3a906ba29b53fa34d3047af78d9f8fd7678256

static int t27(InterplayACMContext *s, unsigned ind, unsigned col) { GetBitContext *gb = &s->gb; unsigned i, b; int n1, n2, n3; for (i = 0; i < s->rows; i++) { /* b = (x1) + (x2 * 5) + (x3 * 25) */ b = get_bits(gb, 7); n1 = (mul_3x5[b] & 0x0F) - 2; n2 = ((mul_3x5[b] >> 4) & 0x0F) - 2; n3 = ((mul_3x5[b] >> 8) & 0x0F) - 2; set_pos(s, i++, col, n1); if (i >= s->rows) break; set_pos(s, i++, col, n2); if (i >= s->rows) break; set_pos(s, i, col, n3); return 0;

FFmpeg

14e4e26559697cfdea584767be4e68474a0a9c7f

static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff){ MpegEncContext * const s = &h->s; static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3}; int level[16]; int zeros_left, coeff_token, total_coeff, i, trailing_ones, run_before; //FIXME put trailing_onex into the context if(max_coeff <= 8){ if (max_coeff == 4) coeff_token = get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1); else coeff_token = get_vlc2(gb, chroma422_dc_coeff_token_vlc.table, CHROMA422_DC_COEFF_TOKEN_VLC_BITS, 1); total_coeff= coeff_token>>2; }else{ if(n >= LUMA_DC_BLOCK_INDEX){ total_coeff= pred_non_zero_count(h, (n - LUMA_DC_BLOCK_INDEX)*16); coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2); total_coeff= coeff_token>>2; }else{ total_coeff= pred_non_zero_count(h, n); coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2); total_coeff= coeff_token>>2; } } h->non_zero_count_cache[ scan8[n] ]= total_coeff; //FIXME set last_non_zero? if(total_coeff==0) return 0; if(total_coeff > (unsigned)max_coeff) { av_log(h->s.avctx, AV_LOG_ERROR, "corrupted macroblock %d %d (total_coeff=%d)\n", s->mb_x, s->mb_y, total_coeff); return -1; } trailing_ones= coeff_token&3; tprintf(h->s.avctx, "trailing:%d, total:%d\n", trailing_ones, total_coeff); assert(total_coeff<=16); i = show_bits(gb, 3); skip_bits(gb, trailing_ones); level[0] = 1-((i&4)>>1); level[1] = 1-((i&2) ); level[2] = 1-((i&1)<<1); if(trailing_ones<total_coeff) { int mask, prefix; int suffix_length = total_coeff > 10 & trailing_ones < 3; int bitsi= show_bits(gb, LEVEL_TAB_BITS); int level_code= cavlc_level_tab[suffix_length][bitsi][0]; skip_bits(gb, cavlc_level_tab[suffix_length][bitsi][1]); if(level_code >= 100){ prefix= level_code - 100; if(prefix == LEVEL_TAB_BITS) prefix += get_level_prefix(gb); //first coefficient has suffix_length equal to 0 or 1 if(prefix<14){ //FIXME try to build a large unified VLC table for all this if(suffix_length) level_code= (prefix<<1) + get_bits1(gb); //part else level_code= prefix; //part }else if(prefix==14){ if(suffix_length) level_code= (prefix<<1) + get_bits1(gb); //part else level_code= prefix + get_bits(gb, 4); //part }else{ level_code= 30 + get_bits(gb, prefix-3); //part if(prefix>=16){ if(prefix > 25+3){ av_log(h->s.avctx, AV_LOG_ERROR, "Invalid level prefix\n"); return -1; } level_code += (1<<(prefix-3))-4096; } } if(trailing_ones < 3) level_code += 2; suffix_length = 2; mask= -(level_code&1); level[trailing_ones]= (((2+level_code)>>1) ^ mask) - mask; }else{ level_code += ((level_code>>31)|1) & -(trailing_ones < 3); suffix_length = 1 + (level_code + 3U > 6U); level[trailing_ones]= level_code; } //remaining coefficients have suffix_length > 0 for(i=trailing_ones+1;i<total_coeff;i++) { static const unsigned int suffix_limit[7] = {0,3,6,12,24,48,INT_MAX }; int bitsi= show_bits(gb, LEVEL_TAB_BITS); level_code= cavlc_level_tab[suffix_length][bitsi][0]; skip_bits(gb, cavlc_level_tab[suffix_length][bitsi][1]); if(level_code >= 100){ prefix= level_code - 100; if(prefix == LEVEL_TAB_BITS){ prefix += get_level_prefix(gb); } if(prefix<15){ level_code = (prefix<<suffix_length) + get_bits(gb, suffix_length); }else{ level_code = (15<<suffix_length) + get_bits(gb, prefix-3); if(prefix>=16) level_code += (1<<(prefix-3))-4096; } mask= -(level_code&1); level_code= (((2+level_code)>>1) ^ mask) - mask; } level[i]= level_code; suffix_length+= suffix_limit[suffix_length] + level_code > 2U*suffix_limit[suffix_length]; } } if(total_coeff == max_coeff) zeros_left=0; else{ if (max_coeff <= 8) { if (max_coeff == 4) zeros_left = get_vlc2(gb, chroma_dc_total_zeros_vlc[total_coeff - 1].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1); else zeros_left = get_vlc2(gb, chroma422_dc_total_zeros_vlc[total_coeff - 1].table, CHROMA422_DC_TOTAL_ZEROS_VLC_BITS, 1); } else { zeros_left= get_vlc2(gb, total_zeros_vlc[total_coeff - 1].table, TOTAL_ZEROS_VLC_BITS, 1); } } #define STORE_BLOCK(type) \ scantable += zeros_left + total_coeff - 1; \ if(n >= LUMA_DC_BLOCK_INDEX){ \ ((type*)block)[*scantable] = level[0]; \ for(i=1;i<total_coeff && zeros_left > 0;i++) { \ if(zeros_left < 7) \ run_before= get_vlc2(gb, run_vlc[zeros_left - 1].table, RUN_VLC_BITS, 1); \ else \ run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2); \ zeros_left -= run_before; \ scantable -= 1 + run_before; \ ((type*)block)[*scantable]= level[i]; \ } \ for(;i<total_coeff;i++) { \ scantable--; \ ((type*)block)[*scantable]= level[i]; \ } \ }else{ \ ((type*)block)[*scantable] = ((int)(level[0] * qmul[*scantable] + 32))>>6; \ for(i=1;i<total_coeff && zeros_left > 0;i++) { \ if(zeros_left < 7) \ run_before= get_vlc2(gb, run_vlc[zeros_left - 1].table, RUN_VLC_BITS, 1); \ else \ run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2); \ zeros_left -= run_before; \ scantable -= 1 + run_before; \ ((type*)block)[*scantable]= ((int)(level[i] * qmul[*scantable] + 32))>>6; \ } \ for(;i<total_coeff;i++) { \ scantable--; \ ((type*)block)[*scantable]= ((int)(level[i] * qmul[*scantable] + 32))>>6; \ } \ } if (h->pixel_shift) { STORE_BLOCK(int32_t) } else { STORE_BLOCK(int16_t) } if(zeros_left<0){ av_log(h->s.avctx, AV_LOG_ERROR, "negative number of zero coeffs at %d %d\n", s->mb_x, s->mb_y); return -1; } return 0; }

FFmpeg

ddd7559ad97d3cde401ce096262af6375685ea22

static AVFrame *hwmap_get_buffer(AVFilterLink *inlink, int w, int h) { AVFilterContext *avctx = inlink->dst; AVFilterLink *outlink = avctx->outputs[0]; HWMapContext *ctx = avctx->priv; if (ctx->map_backwards) { AVFrame *src, *dst; int err; src = ff_get_video_buffer(outlink, w, h); if (!src) { av_log(avctx, AV_LOG_ERROR, "Failed to allocate source " "frame for software mapping.\n"); return NULL; } dst = av_frame_alloc(); if (!dst) { av_frame_free(&src); return NULL; } err = av_hwframe_map(dst, src, ctx->mode); if (err) { av_log(avctx, AV_LOG_ERROR, "Failed to map frame to " "software: %d.\n", err); av_frame_free(&src); av_frame_free(&dst); return NULL; } av_frame_free(&src); return dst; } else { return ff_default_get_video_buffer(inlink, w, h); } }

FFmpeg

d81be0a60a6dea2bc48ec29f9466eee63984ed34

static int decode_wdlt(uint8_t *frame, int width, int height, const uint8_t *src, const uint8_t *src_end) { const uint8_t *frame_end = frame + width * height; uint8_t *line_ptr; int count, i, v, lines, segments; lines = bytestream_get_le16(&src); if (lines > height || src >= src_end) return -1; while (lines--) { segments = bytestream_get_le16(&src); while ((segments & 0xC000) == 0xC000) { unsigned delta = -((int16_t)segments * width); if (frame_end - frame <= delta) return -1; frame += delta; segments = bytestream_get_le16(&src); } if (segments & 0x8000) { frame[width - 1] = segments & 0xFF; segments = bytestream_get_le16(&src); } line_ptr = frame; frame += width; while (segments--) { if (src_end - src < 2) return -1; if (frame - line_ptr <= *src) return -1; line_ptr += *src++; count = (int8_t)*src++; if (count >= 0) { if (frame - line_ptr < count*2 || src_end - src < count*2) return -1; bytestream_get_buffer(&src, line_ptr, count*2); line_ptr += count * 2; } else { count = -count; if (frame - line_ptr < count*2 || src_end - src < 2) return -1; v = bytestream_get_le16(&src); for (i = 0; i < count; i++) bytestream_put_le16(&line_ptr, v); } } } return 0; }

FFmpeg

29b0d94b43ac960cb442049a5d737a3386ff0337

av_cold void ff_vp8dsp_init_x86(VP8DSPContext* c) { mm_flags = mm_support(); #if HAVE_YASM if (mm_flags & FF_MM_MMX) { c->vp8_idct_dc_add = ff_vp8_idct_dc_add_mmx; c->vp8_idct_add = ff_vp8_idct_add_mmx; c->put_vp8_epel_pixels_tab[0][0][0] = c->put_vp8_bilinear_pixels_tab[0][0][0] = ff_put_vp8_pixels16_mmx; c->put_vp8_epel_pixels_tab[1][0][0] = c->put_vp8_bilinear_pixels_tab[1][0][0] = ff_put_vp8_pixels8_mmx; c->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter_simple_mmx; c->vp8_h_loop_filter_simple = ff_vp8_h_loop_filter_simple_mmx; c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_mmx; c->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16y_inner_mmx; c->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_mmx; c->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_mmx; } /* note that 4-tap width=16 functions are missing because w=16 * is only used for luma, and luma is always a copy or sixtap. */ if (mm_flags & FF_MM_MMX2) { c->vp8_luma_dc_wht = ff_vp8_luma_dc_wht_mmxext; VP8_LUMA_MC_FUNC(0, 16, mmxext); VP8_MC_FUNC(1, 8, mmxext); VP8_MC_FUNC(2, 4, mmxext); VP8_BILINEAR_MC_FUNC(0, 16, mmxext); VP8_BILINEAR_MC_FUNC(1, 8, mmxext); VP8_BILINEAR_MC_FUNC(2, 4, mmxext); c->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter_simple_mmxext; c->vp8_h_loop_filter_simple = ff_vp8_h_loop_filter_simple_mmxext; c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_mmxext; c->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16y_inner_mmxext; c->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_mmxext; c->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_mmxext; } if (mm_flags & FF_MM_SSE) { c->put_vp8_epel_pixels_tab[0][0][0] = c->put_vp8_bilinear_pixels_tab[0][0][0] = ff_put_vp8_pixels16_sse; } if (mm_flags & FF_MM_SSE2) { VP8_LUMA_MC_FUNC(0, 16, sse2); VP8_MC_FUNC(1, 8, sse2); VP8_BILINEAR_MC_FUNC(0, 16, sse2); VP8_BILINEAR_MC_FUNC(1, 8, sse2); c->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter_simple_sse2; c->vp8_h_loop_filter_simple = ff_vp8_h_loop_filter_simple_sse2; c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_sse2; c->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16y_inner_sse2; c->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_sse2; c->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_sse2; } if (mm_flags & FF_MM_SSSE3) { VP8_LUMA_MC_FUNC(0, 16, ssse3); VP8_MC_FUNC(1, 8, ssse3); VP8_MC_FUNC(2, 4, ssse3); VP8_BILINEAR_MC_FUNC(0, 16, ssse3); VP8_BILINEAR_MC_FUNC(1, 8, ssse3); VP8_BILINEAR_MC_FUNC(2, 4, ssse3); } if (mm_flags & FF_MM_SSE4) { c->vp8_idct_dc_add = ff_vp8_idct_dc_add_sse4; } #endif }

FFmpeg

6526976f0cbb3fa152797b3a15bd634ad14cabe3

PIX_SAD(mmxext) #endif /* HAVE_INLINE_ASM */ av_cold void ff_dsputil_init_pix_mmx(DSPContext *c, AVCodecContext *avctx) { #if HAVE_INLINE_ASM int cpu_flags = av_get_cpu_flags(); if (INLINE_MMX(cpu_flags)) { c->pix_abs[0][0] = sad16_mmx; c->pix_abs[0][1] = sad16_x2_mmx; c->pix_abs[0][2] = sad16_y2_mmx; c->pix_abs[0][3] = sad16_xy2_mmx; c->pix_abs[1][0] = sad8_mmx; c->pix_abs[1][1] = sad8_x2_mmx; c->pix_abs[1][2] = sad8_y2_mmx; c->pix_abs[1][3] = sad8_xy2_mmx; c->sad[0] = sad16_mmx; c->sad[1] = sad8_mmx; } if (INLINE_MMXEXT(cpu_flags)) { c->pix_abs[0][0] = sad16_mmxext; c->pix_abs[1][0] = sad8_mmxext; c->sad[0] = sad16_mmxext; c->sad[1] = sad8_mmxext; if (!(avctx->flags & CODEC_FLAG_BITEXACT)) { c->pix_abs[0][1] = sad16_x2_mmxext; c->pix_abs[0][2] = sad16_y2_mmxext; c->pix_abs[0][3] = sad16_xy2_mmxext; c->pix_abs[1][1] = sad8_x2_mmxext; c->pix_abs[1][2] = sad8_y2_mmxext; c->pix_abs[1][3] = sad8_xy2_mmxext; } } if (INLINE_SSE2(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_3DNOW) && avctx->codec_id != AV_CODEC_ID_SNOW) { c->sad[0] = sad16_sse2; } #endif /* HAVE_INLINE_ASM */ }

FFmpeg

e1bd40fe6beb74a942b7b0cff2d077750a7e733e

void cpu_loop(CPUARMState *env) { CPUState *cs = CPU(arm_env_get_cpu(env)); int trapnr; unsigned int n, insn; target_siginfo_t info; uint32_t addr; for(;;) { cpu_exec_start(cs); trapnr = cpu_arm_exec(cs); cpu_exec_end(cs); switch(trapnr) { case EXCP_UDEF: { TaskState *ts = cs->opaque; uint32_t opcode; int rc; /* we handle the FPU emulation here, as Linux */ /* we get the opcode */ /* FIXME - what to do if get_user() fails? */ get_user_code_u32(opcode, env->regs[15], env); rc = EmulateAll(opcode, &ts->fpa, env); if (rc == 0) { /* illegal instruction */ info.si_signo = TARGET_SIGILL; info.si_errno = 0; info.si_code = TARGET_ILL_ILLOPN; info._sifields._sigfault._addr = env->regs[15]; queue_signal(env, info.si_signo, &info); } else if (rc < 0) { /* FP exception */ int arm_fpe=0; /* translate softfloat flags to FPSR flags */ if (-rc & float_flag_invalid) arm_fpe |= BIT_IOC; if (-rc & float_flag_divbyzero) arm_fpe |= BIT_DZC; if (-rc & float_flag_overflow) arm_fpe |= BIT_OFC; if (-rc & float_flag_underflow) arm_fpe |= BIT_UFC; if (-rc & float_flag_inexact) arm_fpe |= BIT_IXC; FPSR fpsr = ts->fpa.fpsr; //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe); if (fpsr & (arm_fpe << 16)) { /* exception enabled? */ info.si_signo = TARGET_SIGFPE; info.si_errno = 0; /* ordered by priority, least first */ if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES; if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND; if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF; if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV; if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV; info._sifields._sigfault._addr = env->regs[15]; queue_signal(env, info.si_signo, &info); } else { env->regs[15] += 4; } /* accumulate unenabled exceptions */ if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC)) fpsr |= BIT_IXC; if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC)) fpsr |= BIT_UFC; if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC)) fpsr |= BIT_OFC; if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC)) fpsr |= BIT_DZC; if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC)) fpsr |= BIT_IOC; ts->fpa.fpsr=fpsr; } else { /* everything OK */ /* increment PC */ env->regs[15] += 4; } } break; case EXCP_SWI: case EXCP_BKPT: { env->eabi = 1; /* system call */ if (trapnr == EXCP_BKPT) { if (env->thumb) { /* FIXME - what to do if get_user() fails? */ get_user_code_u16(insn, env->regs[15], env); n = insn & 0xff; env->regs[15] += 2; } else { /* FIXME - what to do if get_user() fails? */ get_user_code_u32(insn, env->regs[15], env); n = (insn & 0xf) | ((insn >> 4) & 0xff0); env->regs[15] += 4; } } else { if (env->thumb) { /* FIXME - what to do if get_user() fails? */ get_user_code_u16(insn, env->regs[15] - 2, env); n = insn & 0xff; } else { /* FIXME - what to do if get_user() fails? */ get_user_code_u32(insn, env->regs[15] - 4, env); n = insn & 0xffffff; } } if (n == ARM_NR_cacheflush) { /* nop */ } else if (n == ARM_NR_semihosting || n == ARM_NR_thumb_semihosting) { env->regs[0] = do_arm_semihosting (env); } else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) { /* linux syscall */ if (env->thumb || n == 0) { n = env->regs[7]; } else { n -= ARM_SYSCALL_BASE; env->eabi = 0; } if ( n > ARM_NR_BASE) { switch (n) { case ARM_NR_cacheflush: /* nop */ break; case ARM_NR_set_tls: cpu_set_tls(env, env->regs[0]); env->regs[0] = 0; break; case ARM_NR_breakpoint: env->regs[15] -= env->thumb ? 2 : 4; goto excp_debug; default: gemu_log("qemu: Unsupported ARM syscall: 0x%x\n", n); env->regs[0] = -TARGET_ENOSYS; break; } } else { env->regs[0] = do_syscall(env, n, env->regs[0], env->regs[1], env->regs[2], env->regs[3], env->regs[4], env->regs[5], 0, 0); } } else { goto error; } } break; case EXCP_INTERRUPT: /* just indicate that signals should be handled asap */ break; case EXCP_STREX: if (!do_strex(env)) { break; } /* fall through for segv */ case EXCP_PREFETCH_ABORT: case EXCP_DATA_ABORT: addr = env->exception.vaddress; { info.si_signo = TARGET_SIGSEGV; info.si_errno = 0; /* XXX: check env->error_code */ info.si_code = TARGET_SEGV_MAPERR; info._sifields._sigfault._addr = addr; queue_signal(env, info.si_signo, &info); } break; case EXCP_DEBUG: excp_debug: { int sig; sig = gdb_handlesig(cs, TARGET_SIGTRAP); if (sig) { info.si_signo = sig; info.si_errno = 0; info.si_code = TARGET_TRAP_BRKPT; queue_signal(env, info.si_signo, &info); } } break; case EXCP_KERNEL_TRAP: if (do_kernel_trap(env)) goto error; break; case EXCP_YIELD: /* nothing to do here for user-mode, just resume guest code */ break; default: error: EXCP_DUMP(env, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr); abort(); } process_pending_signals(env); } }

qemu

f0267ef7115656119bf00ed77857789adc036bda

static void sunkbd_event(void *opaque, int ch) { ChannelState *s = opaque; int release = ch & 0x80; trace_escc_sunkbd_event_in(ch); switch (ch) { case 58: // Caps lock press s->caps_lock_mode ^= 1; if (s->caps_lock_mode == 2) return; // Drop second press break; case 69: // Num lock press s->num_lock_mode ^= 1; if (s->num_lock_mode == 2) return; // Drop second press break; case 186: // Caps lock release s->caps_lock_mode ^= 2; if (s->caps_lock_mode == 3) return; // Drop first release break; case 197: // Num lock release s->num_lock_mode ^= 2; if (s->num_lock_mode == 3) return; // Drop first release break; case 0xe0: s->e0_mode = 1; return; default: break; } if (s->e0_mode) { s->e0_mode = 0; ch = e0_keycodes[ch & 0x7f]; } else { ch = keycodes[ch & 0x7f]; } trace_escc_sunkbd_event_out(ch); put_queue(s, ch | release); }

qemu

65e7545ea3c65a6468fb59418a6dbe66ef71d6d1

static void omap_pwl_update(struct omap_pwl_s *s) { int output = (s->clk && s->enable) ? s->level : 0; if (output != s->output) { s->output = output; printf("%s: Backlight now at %i/256\n", __FUNCTION__, output); } }

qemu

a89f364ae8740dfc31b321eed9ee454e996dc3c1

static void free_note_info(struct elf_note_info *info) { struct elf_thread_status *ets; while (!TAILQ_EMPTY(&info->thread_list)) { ets = TAILQ_FIRST(&info->thread_list); TAILQ_REMOVE(&info->thread_list, ets, ets_link); qemu_free(ets); } qemu_free(info->prstatus); qemu_free(info->psinfo); qemu_free(info->notes); }

qemu

72cf2d4f0e181d0d3a3122e04129c58a95da713e

void *get_mmap_addr(unsigned long size) { return NULL; }

qemu

17e2377abf16c3951d7d34521ceade4d7dc31d01

uint32_t HELPER(neon_narrow_sat_s32)(CPUState *env, uint64_t x) { if ((int64_t)x != (int32_t)x) { SET_QC(); return (x >> 63) ^ 0x7fffffff; } return x; }

qemu

cc2212c2f851291929becc3f4fd153d05ca4c54a

static void amdvi_realize(DeviceState *dev, Error **err) { int ret = 0; AMDVIState *s = AMD_IOMMU_DEVICE(dev); X86IOMMUState *x86_iommu = X86_IOMMU_DEVICE(dev); MachineState *ms = MACHINE(qdev_get_machine()); MachineClass *mc = MACHINE_GET_CLASS(ms); PCMachineState *pcms = PC_MACHINE(object_dynamic_cast(OBJECT(ms), TYPE_PC_MACHINE)); PCIBus *bus; if (!pcms) { error_setg(err, "Machine-type '%s' not supported by amd-iommu", mc->name); return; } bus = pcms->bus; s->iotlb = g_hash_table_new_full(amdvi_uint64_hash, amdvi_uint64_equal, g_free, g_free); /* This device should take care of IOMMU PCI properties */ x86_iommu->type = TYPE_AMD; qdev_set_parent_bus(DEVICE(&s->pci), &bus->qbus); object_property_set_bool(OBJECT(&s->pci), true, "realized", err); ret = pci_add_capability(&s->pci.dev, AMDVI_CAPAB_ID_SEC, 0, AMDVI_CAPAB_SIZE, err); if (ret < 0) { return; } s->capab_offset = ret; ret = pci_add_capability(&s->pci.dev, PCI_CAP_ID_MSI, 0, AMDVI_CAPAB_REG_SIZE, err); if (ret < 0) { return; } ret = pci_add_capability(&s->pci.dev, PCI_CAP_ID_HT, 0, AMDVI_CAPAB_REG_SIZE, err); if (ret < 0) { return; } /* set up MMIO */ memory_region_init_io(&s->mmio, OBJECT(s), &mmio_mem_ops, s, "amdvi-mmio", AMDVI_MMIO_SIZE); sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->mmio); sysbus_mmio_map(SYS_BUS_DEVICE(s), 0, AMDVI_BASE_ADDR); pci_setup_iommu(bus, amdvi_host_dma_iommu, s); s->devid = object_property_get_int(OBJECT(&s->pci), "addr", err); msi_init(&s->pci.dev, 0, 1, true, false, err); amdvi_init(s); }

qemu

29396ed9acfaee9936377ddece4b05452b417861

static int xan_decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size) { XanContext *s = avctx->priv_data; AVPaletteControl *palette_control = avctx->palctrl; int keyframe = 0; if (palette_control->palette_changed) { /* load the new palette and reset the palette control */ xan_wc3_build_palette(s, palette_control->palette); /* If pal8 we clear flag when we copy palette */ if (s->avctx->pix_fmt != PIX_FMT_PAL8) palette_control->palette_changed = 0; keyframe = 1; } if (avctx->get_buffer(avctx, &s->current_frame)) { av_log(s->avctx, AV_LOG_ERROR, " Xan Video: get_buffer() failed\n"); return -1; } s->current_frame.reference = 3; s->buf = buf; s->size = buf_size; if (avctx->codec->id == CODEC_ID_XAN_WC3) xan_wc3_decode_frame(s); else if (avctx->codec->id == CODEC_ID_XAN_WC4) xan_wc4_decode_frame(s); /* release the last frame if it is allocated */ if (s->last_frame.data[0]) avctx->release_buffer(avctx, &s->last_frame); /* shuffle frames */ s->last_frame = s->current_frame; *data_size = sizeof(AVFrame); *(AVFrame*)data = s->current_frame; /* always report that the buffer was completely consumed */ return buf_size; }

FFmpeg

ca16618b01abfde44b4eaf92dc89b01aa1b4a91e

void helper_rdmsr(void) { uint64_t val; helper_svm_check_intercept_param(SVM_EXIT_MSR, 0); switch((uint32_t)ECX) { case MSR_IA32_SYSENTER_CS: val = env->sysenter_cs; break; case MSR_IA32_SYSENTER_ESP: val = env->sysenter_esp; break; case MSR_IA32_SYSENTER_EIP: val = env->sysenter_eip; break; case MSR_IA32_APICBASE: val = cpu_get_apic_base(env); break; case MSR_EFER: val = env->efer; break; case MSR_STAR: val = env->star; break; case MSR_PAT: val = env->pat; break; case MSR_VM_HSAVE_PA: val = env->vm_hsave; break; case MSR_IA32_PERF_STATUS: /* tsc_increment_by_tick */ val = 1000ULL; /* CPU multiplier */ val |= (((uint64_t)4ULL) << 40); break; #ifdef TARGET_X86_64 case MSR_LSTAR: val = env->lstar; break; case MSR_CSTAR: val = env->cstar; break; case MSR_FMASK: val = env->fmask; break; case MSR_FSBASE: val = env->segs[R_FS].base; break; case MSR_GSBASE: val = env->segs[R_GS].base; break; case MSR_KERNELGSBASE: val = env->kernelgsbase; break; #endif #ifdef CONFIG_KQEMU case MSR_QPI_COMMBASE: if (env->kqemu_enabled) { val = kqemu_comm_base; } else { val = 0; } break; #endif case MSR_MTRRphysBase(0): case MSR_MTRRphysBase(1): case MSR_MTRRphysBase(2): case MSR_MTRRphysBase(3): case MSR_MTRRphysBase(4): case MSR_MTRRphysBase(5): case MSR_MTRRphysBase(6): case MSR_MTRRphysBase(7): val = env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysBase(0)) / 2].base; break; case MSR_MTRRphysMask(0): case MSR_MTRRphysMask(1): case MSR_MTRRphysMask(2): case MSR_MTRRphysMask(3): case MSR_MTRRphysMask(4): case MSR_MTRRphysMask(5): case MSR_MTRRphysMask(6): case MSR_MTRRphysMask(7): val = env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysMask(0)) / 2].mask; break; case MSR_MTRRfix64K_00000: val = env->mtrr_fixed[0]; break; case MSR_MTRRfix16K_80000: case MSR_MTRRfix16K_A0000: val = env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix16K_80000 + 1]; break; case MSR_MTRRfix4K_C0000: case MSR_MTRRfix4K_C8000: case MSR_MTRRfix4K_D0000: case MSR_MTRRfix4K_D8000: case MSR_MTRRfix4K_E0000: case MSR_MTRRfix4K_E8000: case MSR_MTRRfix4K_F0000: case MSR_MTRRfix4K_F8000: val = env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix4K_C0000 + 3]; break; case MSR_MTRRdefType: val = env->mtrr_deftype; break; case MSR_MTRRcap: if (env->cpuid_features & CPUID_MTRR) val = MSR_MTRRcap_VCNT | MSR_MTRRcap_FIXRANGE_SUPPORT | MSR_MTRRcap_WC_SUPPORTED; else /* XXX: exception ? */ val = 0; break; case MSR_MCG_CAP: val = env->mcg_cap; break; case MSR_MCG_CTL: if (env->mcg_cap & MCG_CTL_P) val = env->mcg_ctl; else val = 0; break; case MSR_MCG_STATUS: val = env->mcg_status; break; default: if ((uint32_t)ECX >= MSR_MC0_CTL && (uint32_t)ECX < MSR_MC0_CTL + (4 * env->mcg_cap & 0xff)) { uint32_t offset = (uint32_t)ECX - MSR_MC0_CTL; val = env->mce_banks[offset]; break; } /* XXX: exception ? */ val = 0; break; } EAX = (uint32_t)(val); EDX = (uint32_t)(val >> 32); }

qemu

4a1418e07bdcfaa3177739e04707ecaec75d89e1

void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque) { struct capture_callback *cb; for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) { if (cb->opaque == cb_opaque) { cb->ops.destroy (cb_opaque); LIST_REMOVE (cb, entries); qemu_free (cb); if (!cap->cb_head.lh_first) { SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1; while (sw) { SWVoiceCap *sc = (SWVoiceCap *) sw; #ifdef DEBUG_CAPTURE dolog ("freeing %s\n", sw->name); #endif sw1 = sw->entries.le_next; if (sw->rate) { st_rate_stop (sw->rate); sw->rate = NULL; } LIST_REMOVE (sw, entries); LIST_REMOVE (sc, entries); qemu_free (sc); sw = sw1; } LIST_REMOVE (cap, entries); qemu_free (cap); } return; } } }

qemu

72cf2d4f0e181d0d3a3122e04129c58a95da713e

START_TEST(unterminated_dict) { QObject *obj = qobject_from_json("{'abc':32"); fail_unless(obj == NULL); }

qemu

ef76dc59fa5203d146a2acf85a0ad5a5971a4824

static void spapr_cpu_reset(void *opaque) { sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); PowerPCCPU *cpu = opaque; CPUState *cs = CPU(cpu); CPUPPCState *env = &cpu->env; cpu_reset(cs); /* All CPUs start halted. CPU0 is unhalted from the machine level * reset code and the rest are explicitly started up by the guest * using an RTAS call */ cs->halted = 1; env->spr[SPR_HIOR] = 0; ppc_hash64_set_external_hpt(cpu, spapr->htab, spapr->htab_shift, &error_fatal); }

qemu

e57ca75ce3b2bd33102573a8c0555d62e1bcfceb

static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type) { int is_read = (type == SCSI_REQ_STATUS_RETRY_READ); SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); BlockErrorAction action = bdrv_get_on_error(s->bs, is_read); if (action == BLOCK_ERR_IGNORE) { bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read); return 0; } if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC) || action == BLOCK_ERR_STOP_ANY) { type &= SCSI_REQ_STATUS_RETRY_TYPE_MASK; r->status |= SCSI_REQ_STATUS_RETRY | type; bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); vm_stop(VMSTOP_DISKFULL); } else { if (type == SCSI_REQ_STATUS_RETRY_READ) { scsi_req_data(&r->req, 0); } if (error == ENOMEM) { scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(TARGET_FAILURE)); } else { scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(IO_ERROR)); } bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read); } return 1; }

qemu

efb9ee024845982a210bfe48a73298846adfe9da

void xen_map_cache_init(phys_offset_to_gaddr_t f, void *opaque) { unsigned long size; struct rlimit rlimit_as; mapcache = g_malloc0(sizeof (MapCache)); mapcache->phys_offset_to_gaddr = f; mapcache->opaque = opaque; qemu_mutex_init(&mapcache->lock); QTAILQ_INIT(&mapcache->locked_entries); if (geteuid() == 0) { rlimit_as.rlim_cur = RLIM_INFINITY; rlimit_as.rlim_max = RLIM_INFINITY; mapcache->max_mcache_size = MCACHE_MAX_SIZE; } else { getrlimit(RLIMIT_AS, &rlimit_as); rlimit_as.rlim_cur = rlimit_as.rlim_max; if (rlimit_as.rlim_max != RLIM_INFINITY) { fprintf(stderr, "Warning: QEMU's maximum size of virtual" " memory is not infinity.\n"); } if (rlimit_as.rlim_max < MCACHE_MAX_SIZE + NON_MCACHE_MEMORY_SIZE) { mapcache->max_mcache_size = rlimit_as.rlim_max - NON_MCACHE_MEMORY_SIZE; } else { mapcache->max_mcache_size = MCACHE_MAX_SIZE; } } setrlimit(RLIMIT_AS, &rlimit_as); mapcache->nr_buckets = (((mapcache->max_mcache_size >> XC_PAGE_SHIFT) + (1UL << (MCACHE_BUCKET_SHIFT - XC_PAGE_SHIFT)) - 1) >> (MCACHE_BUCKET_SHIFT - XC_PAGE_SHIFT)); size = mapcache->nr_buckets * sizeof (MapCacheEntry); size = (size + XC_PAGE_SIZE - 1) & ~(XC_PAGE_SIZE - 1); DPRINTF("%s, nr_buckets = %lx size %lu\n", __func__, mapcache->nr_buckets, size); mapcache->entry = g_malloc0(size); }

qemu

8297be80f7cf71e09617669a8bd8b2836dcfd4c3

static av_cold int libopenjpeg_encode_init(AVCodecContext *avctx) { LibOpenJPEGContext *ctx = avctx->priv_data; int err = 0; opj_set_default_encoder_parameters(&ctx->enc_params); #if HAVE_OPENJPEG_2_1_OPENJPEG_H switch (ctx->cinema_mode) { case OPJ_CINEMA2K_24: ctx->enc_params.rsiz = OPJ_PROFILE_CINEMA_2K; ctx->enc_params.max_cs_size = OPJ_CINEMA_24_CS; ctx->enc_params.max_comp_size = OPJ_CINEMA_24_COMP; break; case OPJ_CINEMA2K_48: ctx->enc_params.rsiz = OPJ_PROFILE_CINEMA_2K; ctx->enc_params.max_cs_size = OPJ_CINEMA_48_CS; ctx->enc_params.max_comp_size = OPJ_CINEMA_48_COMP; break; case OPJ_CINEMA4K_24: ctx->enc_params.rsiz = OPJ_PROFILE_CINEMA_4K; ctx->enc_params.max_cs_size = OPJ_CINEMA_24_CS; ctx->enc_params.max_comp_size = OPJ_CINEMA_24_COMP; break; } switch (ctx->profile) { case OPJ_CINEMA2K: if (ctx->enc_params.rsiz == OPJ_PROFILE_CINEMA_4K) { err = AVERROR(EINVAL); break; } ctx->enc_params.rsiz = OPJ_PROFILE_CINEMA_2K; break; case OPJ_CINEMA4K: if (ctx->enc_params.rsiz == OPJ_PROFILE_CINEMA_2K) { err = AVERROR(EINVAL); break; } ctx->enc_params.rsiz = OPJ_PROFILE_CINEMA_4K; break; } if (err) { av_log(avctx, AV_LOG_ERROR, "Invalid parameter pairing: cinema_mode and profile conflict.\n"); goto fail; } #else ctx->enc_params.cp_rsiz = ctx->profile; ctx->enc_params.cp_cinema = ctx->cinema_mode; #endif if (!ctx->numresolution) { ctx->numresolution = 6; while (FFMIN(avctx->width, avctx->height) >> ctx->numresolution < 1) ctx->numresolution --; } ctx->enc_params.mode = !!avctx->global_quality; ctx->enc_params.prog_order = ctx->prog_order; ctx->enc_params.numresolution = ctx->numresolution; ctx->enc_params.cp_disto_alloc = ctx->disto_alloc; ctx->enc_params.cp_fixed_alloc = ctx->fixed_alloc; ctx->enc_params.cp_fixed_quality = ctx->fixed_quality; ctx->enc_params.tcp_numlayers = ctx->numlayers; ctx->enc_params.tcp_rates[0] = FFMAX(avctx->compression_level, 0) * 2; if (ctx->cinema_mode > 0) { cinema_parameters(&ctx->enc_params); } #if OPENJPEG_MAJOR_VERSION == 1 ctx->image = mj2_create_image(avctx, &ctx->enc_params); if (!ctx->image) { av_log(avctx, AV_LOG_ERROR, "Error creating the mj2 image\n"); err = AVERROR(EINVAL); goto fail; } #endif // OPENJPEG_MAJOR_VERSION == 1 return 0; fail: #if OPENJPEG_MAJOR_VERSION == 1 opj_image_destroy(ctx->image); ctx->image = NULL; #endif // OPENJPEG_MAJOR_VERSION == 1 return err; }

FFmpeg

195784ec95266c69c111f1e977fd4cf4815c6d8d

static void init_filter_param(AVFilterContext *ctx, FilterParam *fp, const char *effect_type, int width) { int z; const char *effect; effect = fp->amount == 0 ? "none" : fp->amount < 0 ? "blur" : "sharpen"; av_log(ctx, AV_LOG_VERBOSE, "effect:%s type:%s msize_x:%d msize_y:%d amount:%0.2f\n", effect, effect_type, fp->msize_x, fp->msize_y, fp->amount / 65535.0); for (z = 0; z < 2 * fp->steps_y; z++) fp->sc[z] = av_malloc(sizeof(*(fp->sc[z])) * (width + 2 * fp->steps_x)); }

FFmpeg

ef4c71e8f83a46fb31a11f0a066efb90821c579f

static inline void FUNC(idctRowCondDC_extrashift)(int16_t *row, int extra_shift) #else static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift) #endif { int a0, a1, a2, a3, b0, b1, b2, b3; #if HAVE_FAST_64BIT #define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN) if (((((uint64_t *)row)[0] & ~ROW0_MASK) | ((uint64_t *)row)[1]) == 0) { uint64_t temp; if (DC_SHIFT - extra_shift >= 0) { temp = (row[0] * (1 << (DC_SHIFT - extra_shift))) & 0xffff; } else { temp = ((row[0] + (1<<(extra_shift - DC_SHIFT-1))) >> (extra_shift - DC_SHIFT)) & 0xffff; } temp += temp * (1 << 16); temp += temp * ((uint64_t) 1 << 32); ((uint64_t *)row)[0] = temp; ((uint64_t *)row)[1] = temp; return; } #else if (!(((uint32_t*)row)[1] | ((uint32_t*)row)[2] | ((uint32_t*)row)[3] | row[1])) { uint32_t temp; if (DC_SHIFT - extra_shift >= 0) { temp = (row[0] * (1 << (DC_SHIFT - extra_shift))) & 0xffff; } else { temp = ((row[0] + (1<<(extra_shift - DC_SHIFT-1))) >> (extra_shift - DC_SHIFT)) & 0xffff; } temp += temp * (1 << 16); ((uint32_t*)row)[0]=((uint32_t*)row)[1] = ((uint32_t*)row)[2]=((uint32_t*)row)[3] = temp; return; } #endif a0 = (W4 * row[0]) + (1 << (ROW_SHIFT + extra_shift - 1)); a1 = a0; a2 = a0; a3 = a0; a0 += W2 * row[2]; a1 += W6 * row[2]; a2 -= W6 * row[2]; a3 -= W2 * row[2]; b0 = MUL(W1, row[1]); MAC(b0, W3, row[3]); b1 = MUL(W3, row[1]); MAC(b1, -W7, row[3]); b2 = MUL(W5, row[1]); MAC(b2, -W1, row[3]); b3 = MUL(W7, row[1]); MAC(b3, -W5, row[3]); if (AV_RN64A(row + 4)) { a0 += W4*row[4] + W6*row[6]; a1 += - W4*row[4] - W2*row[6]; a2 += - W4*row[4] + W2*row[6]; a3 += W4*row[4] - W6*row[6]; MAC(b0, W5, row[5]); MAC(b0, W7, row[7]); MAC(b1, -W1, row[5]); MAC(b1, -W5, row[7]); MAC(b2, W7, row[5]); MAC(b2, W3, row[7]); MAC(b3, W3, row[5]); MAC(b3, -W1, row[7]); } row[0] = (a0 + b0) >> (ROW_SHIFT + extra_shift); row[7] = (a0 - b0) >> (ROW_SHIFT + extra_shift); row[1] = (a1 + b1) >> (ROW_SHIFT + extra_shift); row[6] = (a1 - b1) >> (ROW_SHIFT + extra_shift); row[2] = (a2 + b2) >> (ROW_SHIFT + extra_shift); row[5] = (a2 - b2) >> (ROW_SHIFT + extra_shift); row[3] = (a3 + b3) >> (ROW_SHIFT + extra_shift); row[4] = (a3 - b3) >> (ROW_SHIFT + extra_shift); }

FFmpeg

5df703aa1b03814e9cd216ab703501481166b3bb

static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom) { AVStream *st; MOVStreamContext *sc; unsigned int i, entries; if (c->fc->nb_streams < 1) return 0; st = c->fc->streams[c->fc->nb_streams-1]; sc = st->priv_data; avio_r8(pb); /* version */ avio_rb24(pb); /* flags */ entries = avio_rb32(pb); if (!entries) return 0; if (entries >= UINT_MAX/sizeof(int64_t)) return AVERROR_INVALIDDATA; sc->chunk_offsets = av_malloc(entries * sizeof(int64_t)); if (!sc->chunk_offsets) return AVERROR(ENOMEM); sc->chunk_count = entries; if (atom.type == MKTAG('s','t','c','o')) for (i=0; i<entries; i++) sc->chunk_offsets[i] = avio_rb32(pb); else if (atom.type == MKTAG('c','o','6','4')) for (i=0; i<entries; i++) sc->chunk_offsets[i] = avio_rb64(pb); else return AVERROR_INVALIDDATA; return 0; }

FFmpeg

9888ffb1ce5e0a17f711b01933d504c72ea29d3b

static inline void decode_subblock(DCTELEM *dst, int code, const int is_block2, GetBitContext *gb, VLC *vlc, int q) { int coeffs[4]; coeffs[0] = modulo_three_table[code][0]; coeffs[1] = modulo_three_table[code][1]; coeffs[2] = modulo_three_table[code][2]; coeffs[3] = modulo_three_table[code][3]; decode_coeff(dst , coeffs[0], 3, gb, vlc, q); if(is_block2){ decode_coeff(dst+8, coeffs[1], 2, gb, vlc, q); decode_coeff(dst+1, coeffs[2], 2, gb, vlc, q); }else{ decode_coeff(dst+1, coeffs[1], 2, gb, vlc, q); decode_coeff(dst+8, coeffs[2], 2, gb, vlc, q); } decode_coeff(dst+9, coeffs[3], 2, gb, vlc, q); }

FFmpeg

3faa303a47e0c3b59a53988e0f76018930c6cb1a

static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs, BdrvTrackedRequest *req, int64_t offset, unsigned int bytes, QEMUIOVector *qiov, int flags) { BlockDriver *drv = bs->drv; bool waited; int ret; int64_t sector_num = offset >> BDRV_SECTOR_BITS; unsigned int nb_sectors = bytes >> BDRV_SECTOR_BITS; assert((offset & (BDRV_SECTOR_SIZE - 1)) == 0); assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0); assert(!qiov || bytes == qiov->size); waited = wait_serialising_requests(req); assert(!waited || !req->serialising); assert(req->overlap_offset <= offset); assert(offset + bytes <= req->overlap_offset + req->overlap_bytes); ret = notifier_with_return_list_notify(&bs->before_write_notifiers, req); if (!ret && bs->detect_zeroes != BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF && !(flags & BDRV_REQ_ZERO_WRITE) && drv->bdrv_co_write_zeroes && qemu_iovec_is_zero(qiov)) { flags |= BDRV_REQ_ZERO_WRITE; if (bs->detect_zeroes == BLOCKDEV_DETECT_ZEROES_OPTIONS_UNMAP) { flags |= BDRV_REQ_MAY_UNMAP; } } if (ret < 0) { /* Do nothing, write notifier decided to fail this request */ } else if (flags & BDRV_REQ_ZERO_WRITE) { BLKDBG_EVENT(bs, BLKDBG_PWRITEV_ZERO); ret = bdrv_co_do_write_zeroes(bs, sector_num, nb_sectors, flags); } else { BLKDBG_EVENT(bs, BLKDBG_PWRITEV); ret = drv->bdrv_co_writev(bs, sector_num, nb_sectors, qiov); } BLKDBG_EVENT(bs, BLKDBG_PWRITEV_DONE); if (ret == 0 && !bs->enable_write_cache) { ret = bdrv_co_flush(bs); } bdrv_set_dirty(bs, sector_num, nb_sectors); if (bs->stats.wr_highest_sector < sector_num + nb_sectors - 1) { bs->stats.wr_highest_sector = sector_num + nb_sectors - 1; } if (bs->growable && ret >= 0) { bs->total_sectors = MAX(bs->total_sectors, sector_num + nb_sectors); } return ret; }

qemu

5e5a94b60518002e8ecc7afa78a9e7565b23e38f

static int process_metadata(AVFormatContext *s, uint8_t *name, uint16_t name_len, uint16_t val_len, uint16_t type, AVDictionary **met) { int ret; ff_asf_guid guid; if (val_len) { switch (type) { case ASF_UNICODE: asf_read_value(s, name, name_len, val_len, type, met); break; case ASF_BYTE_ARRAY: if (!strcmp(name, "WM/Picture")) // handle cover art asf_read_picture(s, val_len); else if (!strcmp(name, "ID3")) // handle ID3 tag get_id3_tag(s, val_len); else asf_read_value(s, name, name_len, val_len, type, met); break; case ASF_GUID: ff_get_guid(s->pb, &guid); break; default: if ((ret = asf_read_generic_value(s, name, name_len, type, met)) < 0) return ret; break; } } av_freep(&name); return 0; }

FFmpeg

fdbc544d29176ba69d67dd879df4696f0a19052e

static V9fsSynthNode *v9fs_add_dir_node(V9fsSynthNode *parent, int mode, const char *name, V9fsSynthNodeAttr *attr, int inode) { V9fsSynthNode *node; /* Add directory type and remove write bits */ mode = ((mode & 0777) | S_IFDIR) & ~(S_IWUSR | S_IWGRP | S_IWOTH); node = g_malloc0(sizeof(V9fsSynthNode)); if (attr) { /* We are adding .. or . entries */ node->attr = attr; node->attr->nlink++; } else { node->attr = &node->actual_attr; node->attr->inode = inode; node->attr->nlink = 1; /* We don't allow write to directories */ node->attr->mode = mode; node->attr->write = NULL; node->attr->read = NULL; } node->private = node; strncpy(node->name, name, sizeof(node->name)); QLIST_INSERT_HEAD_RCU(&parent->child, node, sibling); return node; }

qemu

a79b5f8b80890b402fdb0733b0a073695a7875b5

static void add_bytes_l2_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w) { long i; for (i = 0; i <= w - sizeof(long); i += sizeof(long)) { long a = *(long *)(src1 + i); long b = *(long *)(src2 + i); *(long *)(dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80); } for (; i < w; i++) dst[i] = src1[i] + src2[i]; }

FFmpeg

86736f59d6a527d8bc807d09b93f971c0fe0bb07

static int scsi_disk_emulate_command(SCSIDiskReq *r) { SCSIRequest *req = &r->req; SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); uint64_t nb_sectors; uint8_t *outbuf; int buflen = 0; if (!r->iov.iov_base) { /* * FIXME: we shouldn't return anything bigger than 4k, but the code * requires the buffer to be as big as req->cmd.xfer in several * places. So, do not allow CDBs with a very large ALLOCATION * LENGTH. The real fix would be to modify scsi_read_data and * dma_buf_read, so that they return data beyond the buflen * as all zeros. */ if (req->cmd.xfer > 65536) { goto illegal_request; } r->buflen = MAX(4096, req->cmd.xfer); r->iov.iov_base = qemu_blockalign(s->qdev.conf.bs, r->buflen); } outbuf = r->iov.iov_base; switch (req->cmd.buf[0]) { case TEST_UNIT_READY: assert(!s->tray_open && bdrv_is_inserted(s->qdev.conf.bs)); break; case INQUIRY: buflen = scsi_disk_emulate_inquiry(req, outbuf); if (buflen < 0) { goto illegal_request; } break; case MODE_SENSE: case MODE_SENSE_10: buflen = scsi_disk_emulate_mode_sense(r, outbuf); if (buflen < 0) { goto illegal_request; } break; case READ_TOC: buflen = scsi_disk_emulate_read_toc(req, outbuf); if (buflen < 0) { goto illegal_request; } break; case RESERVE: if (req->cmd.buf[1] & 1) { goto illegal_request; } break; case RESERVE_10: if (req->cmd.buf[1] & 3) { goto illegal_request; } break; case RELEASE: if (req->cmd.buf[1] & 1) { goto illegal_request; } break; case RELEASE_10: if (req->cmd.buf[1] & 3) { goto illegal_request; } break; case START_STOP: if (scsi_disk_emulate_start_stop(r) < 0) { return -1; } break; case ALLOW_MEDIUM_REMOVAL: s->tray_locked = req->cmd.buf[4] & 1; bdrv_lock_medium(s->qdev.conf.bs, req->cmd.buf[4] & 1); break; case READ_CAPACITY_10: /* The normal LEN field for this command is zero. */ memset(outbuf, 0, 8); bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); if (!nb_sectors) { scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); return -1; } if ((req->cmd.buf[8] & 1) == 0 && req->cmd.lba) { goto illegal_request; } nb_sectors /= s->qdev.blocksize / 512; /* Returned value is the address of the last sector. */ nb_sectors--; /* Remember the new size for read/write sanity checking. */ s->qdev.max_lba = nb_sectors; /* Clip to 2TB, instead of returning capacity modulo 2TB. */ if (nb_sectors > UINT32_MAX) { nb_sectors = UINT32_MAX; } outbuf[0] = (nb_sectors >> 24) & 0xff; outbuf[1] = (nb_sectors >> 16) & 0xff; outbuf[2] = (nb_sectors >> 8) & 0xff; outbuf[3] = nb_sectors & 0xff; outbuf[4] = 0; outbuf[5] = 0; outbuf[6] = s->qdev.blocksize >> 8; outbuf[7] = 0; buflen = 8; break; case REQUEST_SENSE: /* Just return "NO SENSE". */ buflen = scsi_build_sense(NULL, 0, outbuf, r->buflen, (req->cmd.buf[1] & 1) == 0); break; case MECHANISM_STATUS: buflen = scsi_emulate_mechanism_status(s, outbuf); if (buflen < 0) { goto illegal_request; } break; case GET_CONFIGURATION: buflen = scsi_get_configuration(s, outbuf); if (buflen < 0) { goto illegal_request; } break; case GET_EVENT_STATUS_NOTIFICATION: buflen = scsi_get_event_status_notification(s, r, outbuf); if (buflen < 0) { goto illegal_request; } break; case READ_DVD_STRUCTURE: buflen = scsi_read_dvd_structure(s, r, outbuf); if (buflen < 0) { goto illegal_request; } break; case SERVICE_ACTION_IN_16: /* Service Action In subcommands. */ if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) { DPRINTF("SAI READ CAPACITY(16)\n"); memset(outbuf, 0, req->cmd.xfer); bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); if (!nb_sectors) { scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); return -1; } if ((req->cmd.buf[14] & 1) == 0 && req->cmd.lba) { goto illegal_request; } nb_sectors /= s->qdev.blocksize / 512; /* Returned value is the address of the last sector. */ nb_sectors--; /* Remember the new size for read/write sanity checking. */ s->qdev.max_lba = nb_sectors; outbuf[0] = (nb_sectors >> 56) & 0xff; outbuf[1] = (nb_sectors >> 48) & 0xff; outbuf[2] = (nb_sectors >> 40) & 0xff; outbuf[3] = (nb_sectors >> 32) & 0xff; outbuf[4] = (nb_sectors >> 24) & 0xff; outbuf[5] = (nb_sectors >> 16) & 0xff; outbuf[6] = (nb_sectors >> 8) & 0xff; outbuf[7] = nb_sectors & 0xff; outbuf[8] = 0; outbuf[9] = 0; outbuf[10] = s->qdev.blocksize >> 8; outbuf[11] = 0; outbuf[12] = 0; outbuf[13] = get_physical_block_exp(&s->qdev.conf); /* set TPE bit if the format supports discard */ if (s->qdev.conf.discard_granularity) { outbuf[14] = 0x80; } /* Protection, exponent and lowest lba field left blank. */ buflen = req->cmd.xfer; break; } DPRINTF("Unsupported Service Action In\n"); goto illegal_request; case VERIFY_10: break; default: scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); return -1; } buflen = MIN(buflen, req->cmd.xfer); return buflen; illegal_request: if (r->req.status == -1) { scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); } return -1; }

qemu

7f64f8e2c3c5a02636c2a6b8d6e6c5f7a62b89f7

static void bdrv_delete(BlockDriverState *bs) { assert(!bs->dev); assert(!bs->job); assert(bdrv_op_blocker_is_empty(bs)); assert(!bs->refcnt); assert(QLIST_EMPTY(&bs->dirty_bitmaps)); bdrv_close(bs); /* remove from list, if necessary */ bdrv_make_anon(bs); g_free(bs); }

qemu

3ae59580a0db469c1de72d5c58266b08fb096056

static void v9fs_write(void *opaque) { int cnt; ssize_t err; int32_t fid; int64_t off; int32_t count; int32_t len = 0; int32_t total = 0; size_t offset = 7; V9fsFidState *fidp; struct iovec iov[128]; /* FIXME: bad, bad, bad */ struct iovec *sg = iov; V9fsPDU *pdu = opaque; V9fsState *s = pdu->s; pdu_unmarshal(pdu, offset, "dqdv", &fid, &off, &count, sg, &cnt); trace_v9fs_write(pdu->tag, pdu->id, fid, off, count, cnt); fidp = get_fid(pdu, fid); if (fidp == NULL) { err = -EINVAL; goto out_nofid; } if (fidp->fid_type == P9_FID_FILE) { if (fidp->fs.fd == -1) { err = -EINVAL; goto out; } } else if (fidp->fid_type == P9_FID_XATTR) { /* * setxattr operation */ err = v9fs_xattr_write(s, pdu, fidp, off, count, sg, cnt); goto out; } else { err = -EINVAL; goto out; } sg = cap_sg(sg, count, &cnt); do { if (0) { print_sg(sg, cnt); } /* Loop in case of EINTR */ do { len = v9fs_co_pwritev(pdu, fidp, sg, cnt, off); if (len >= 0) { off += len; total += len; } } while (len == -EINTR && !pdu->cancelled); if (len < 0) { /* IO error return the error */ err = len; goto out; } sg = adjust_sg(sg, len, &cnt); } while (total < count && len > 0); offset += pdu_marshal(pdu, offset, "d", total); err = offset; trace_v9fs_write_return(pdu->tag, pdu->id, total, err); out: put_fid(pdu, fidp); out_nofid: complete_pdu(s, pdu, err); }

qemu

302a0d3ed721e4c30c6a2a37f64c60b50ffd33b9

void av_set_cpu_flags_mask(int mask) { cpu_flags = get_cpu_flags() & mask; }

FFmpeg

fed50c4304eecb352e29ce789cdb96ea84d6162f

static int decode_header_trees(SmackVContext *smk) { GetBitContext gb; int mmap_size, mclr_size, full_size, type_size, ret; mmap_size = AV_RL32(smk->avctx->extradata); mclr_size = AV_RL32(smk->avctx->extradata + 4); full_size = AV_RL32(smk->avctx->extradata + 8); type_size = AV_RL32(smk->avctx->extradata + 12); init_get_bits8(&gb, smk->avctx->extradata + 16, smk->avctx->extradata_size - 16); if(!get_bits1(&gb)) { av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\n"); smk->mmap_tbl = av_malloc(sizeof(int) * 2); if (!smk->mmap_tbl) return AVERROR(ENOMEM); smk->mmap_tbl[0] = 0; smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1; } else { ret = smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size); if (ret < 0) return ret; } if(!get_bits1(&gb)) { av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\n"); smk->mclr_tbl = av_malloc(sizeof(int) * 2); if (!smk->mclr_tbl) return AVERROR(ENOMEM); smk->mclr_tbl[0] = 0; smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1; } else { ret = smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size); if (ret < 0) return ret; } if(!get_bits1(&gb)) { av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\n"); smk->full_tbl = av_malloc(sizeof(int) * 2); if (!smk->full_tbl) return AVERROR(ENOMEM); smk->full_tbl[0] = 0; smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1; } else { ret = smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size); if (ret < 0) return ret; } if(!get_bits1(&gb)) { av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\n"); smk->type_tbl = av_malloc(sizeof(int) * 2); if (!smk->type_tbl) return AVERROR(ENOMEM); smk->type_tbl[0] = 0; smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1; } else { ret = smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size); if (ret < 0) return ret; } return 0; }

FFmpeg

21d8c6612fcec630785af5c0ae087d0393bb2a8e

void aio_set_fd_handler(AioContext *ctx, int fd, IOHandler *io_read, IOHandler *io_write, AioFlushHandler *io_flush, void *opaque) { AioHandler *node; node = find_aio_handler(ctx, fd); /* Are we deleting the fd handler? */ if (!io_read && !io_write) { if (node) { g_source_remove_poll(&ctx->source, &node->pfd); /* If the lock is held, just mark the node as deleted */ if (ctx->walking_handlers) { node->deleted = 1; node->pfd.revents = 0; } else { /* Otherwise, delete it for real. We can't just mark it as * deleted because deleted nodes are only cleaned up after * releasing the walking_handlers lock. */ QLIST_REMOVE(node, node); g_free(node); } } } else { if (node == NULL) { /* Alloc and insert if it's not already there */ node = g_malloc0(sizeof(AioHandler)); node->pfd.fd = fd; QLIST_INSERT_HEAD(&ctx->aio_handlers, node, node); g_source_add_poll(&ctx->source, &node->pfd); } /* Update handler with latest information */ node->io_read = io_read; node->io_write = io_write; node->io_flush = io_flush; node->opaque = opaque; node->pollfds_idx = -1; node->pfd.events = (io_read ? G_IO_IN | G_IO_HUP | G_IO_ERR : 0); node->pfd.events |= (io_write ? G_IO_OUT | G_IO_ERR : 0); } aio_notify(ctx); }

qemu

164a101f28a53cd3db60ed874e7c3630e7988ed8

av_cold static int auto_matrix(SwrContext *s) { int i, j, out_i; double matrix[64][64]={{0}}; int64_t unaccounted, in_ch_layout, out_ch_layout; double maxcoef=0; char buf[128]; const int matrix_encoding = s->matrix_encoding; float maxval; in_ch_layout = clean_layout(s, s->in_ch_layout); if(!sane_layout(in_ch_layout)){ av_get_channel_layout_string(buf, sizeof(buf), -1, s->in_ch_layout); av_log(s, AV_LOG_ERROR, "Input channel layout '%s' is not supported\n", buf); return AVERROR(EINVAL); } out_ch_layout = clean_layout(s, s->out_ch_layout); if(!sane_layout(out_ch_layout)){ av_get_channel_layout_string(buf, sizeof(buf), -1, s->out_ch_layout); av_log(s, AV_LOG_ERROR, "Output channel layout '%s' is not supported\n", buf); return AVERROR(EINVAL); } memset(s->matrix, 0, sizeof(s->matrix)); for(i=0; i<64; i++){ if(in_ch_layout & out_ch_layout & (1ULL<<i)) matrix[i][i]= 1.0; } unaccounted= in_ch_layout & ~out_ch_layout; //FIXME implement dolby surround //FIXME implement full ac3 if(unaccounted & AV_CH_FRONT_CENTER){ if((out_ch_layout & AV_CH_LAYOUT_STEREO) == AV_CH_LAYOUT_STEREO){ if(in_ch_layout & AV_CH_LAYOUT_STEREO) { matrix[ FRONT_LEFT][FRONT_CENTER]+= s->clev; matrix[FRONT_RIGHT][FRONT_CENTER]+= s->clev; } else { matrix[ FRONT_LEFT][FRONT_CENTER]+= M_SQRT1_2; matrix[FRONT_RIGHT][FRONT_CENTER]+= M_SQRT1_2; } }else av_assert0(0); } if(unaccounted & AV_CH_LAYOUT_STEREO){ if(out_ch_layout & AV_CH_FRONT_CENTER){ matrix[FRONT_CENTER][ FRONT_LEFT]+= M_SQRT1_2; matrix[FRONT_CENTER][FRONT_RIGHT]+= M_SQRT1_2; if(in_ch_layout & AV_CH_FRONT_CENTER) matrix[FRONT_CENTER][ FRONT_CENTER] = s->clev*sqrt(2); }else av_assert0(0); } if(unaccounted & AV_CH_BACK_CENTER){ if(out_ch_layout & AV_CH_BACK_LEFT){ matrix[ BACK_LEFT][BACK_CENTER]+= M_SQRT1_2; matrix[BACK_RIGHT][BACK_CENTER]+= M_SQRT1_2; }else if(out_ch_layout & AV_CH_SIDE_LEFT){ matrix[ SIDE_LEFT][BACK_CENTER]+= M_SQRT1_2; matrix[SIDE_RIGHT][BACK_CENTER]+= M_SQRT1_2; }else if(out_ch_layout & AV_CH_FRONT_LEFT){ if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY || matrix_encoding == AV_MATRIX_ENCODING_DPLII) { if (unaccounted & (AV_CH_BACK_LEFT | AV_CH_SIDE_LEFT)) { matrix[FRONT_LEFT ][BACK_CENTER] -= s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][BACK_CENTER] += s->slev * M_SQRT1_2; } else { matrix[FRONT_LEFT ][BACK_CENTER] -= s->slev; matrix[FRONT_RIGHT][BACK_CENTER] += s->slev; } } else { matrix[ FRONT_LEFT][BACK_CENTER]+= s->slev*M_SQRT1_2; matrix[FRONT_RIGHT][BACK_CENTER]+= s->slev*M_SQRT1_2; } }else if(out_ch_layout & AV_CH_FRONT_CENTER){ matrix[ FRONT_CENTER][BACK_CENTER]+= s->slev*M_SQRT1_2; }else av_assert0(0); } if(unaccounted & AV_CH_BACK_LEFT){ if(out_ch_layout & AV_CH_BACK_CENTER){ matrix[BACK_CENTER][ BACK_LEFT]+= M_SQRT1_2; matrix[BACK_CENTER][BACK_RIGHT]+= M_SQRT1_2; }else if(out_ch_layout & AV_CH_SIDE_LEFT){ if(in_ch_layout & AV_CH_SIDE_LEFT){ matrix[ SIDE_LEFT][ BACK_LEFT]+= M_SQRT1_2; matrix[SIDE_RIGHT][BACK_RIGHT]+= M_SQRT1_2; }else{ matrix[ SIDE_LEFT][ BACK_LEFT]+= 1.0; matrix[SIDE_RIGHT][BACK_RIGHT]+= 1.0; } }else if(out_ch_layout & AV_CH_FRONT_LEFT){ if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) { matrix[FRONT_LEFT ][BACK_LEFT ] -= s->slev * M_SQRT1_2; matrix[FRONT_LEFT ][BACK_RIGHT] -= s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][BACK_LEFT ] += s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][BACK_RIGHT] += s->slev * M_SQRT1_2; } else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) { matrix[FRONT_LEFT ][BACK_LEFT ] -= s->slev * SQRT3_2; matrix[FRONT_LEFT ][BACK_RIGHT] -= s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][BACK_LEFT ] += s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][BACK_RIGHT] += s->slev * SQRT3_2; } else { matrix[ FRONT_LEFT][ BACK_LEFT] += s->slev; matrix[FRONT_RIGHT][BACK_RIGHT] += s->slev; } }else if(out_ch_layout & AV_CH_FRONT_CENTER){ matrix[ FRONT_CENTER][BACK_LEFT ]+= s->slev*M_SQRT1_2; matrix[ FRONT_CENTER][BACK_RIGHT]+= s->slev*M_SQRT1_2; }else av_assert0(0); } if(unaccounted & AV_CH_SIDE_LEFT){ if(out_ch_layout & AV_CH_BACK_LEFT){ /* if back channels do not exist in the input, just copy side channels to back channels, otherwise mix side into back */ if (in_ch_layout & AV_CH_BACK_LEFT) { matrix[BACK_LEFT ][SIDE_LEFT ] += M_SQRT1_2; matrix[BACK_RIGHT][SIDE_RIGHT] += M_SQRT1_2; } else { matrix[BACK_LEFT ][SIDE_LEFT ] += 1.0; matrix[BACK_RIGHT][SIDE_RIGHT] += 1.0; } }else if(out_ch_layout & AV_CH_BACK_CENTER){ matrix[BACK_CENTER][ SIDE_LEFT]+= M_SQRT1_2; matrix[BACK_CENTER][SIDE_RIGHT]+= M_SQRT1_2; }else if(out_ch_layout & AV_CH_FRONT_LEFT){ if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) { matrix[FRONT_LEFT ][SIDE_LEFT ] -= s->slev * M_SQRT1_2; matrix[FRONT_LEFT ][SIDE_RIGHT] -= s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][SIDE_LEFT ] += s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][SIDE_RIGHT] += s->slev * M_SQRT1_2; } else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) { matrix[FRONT_LEFT ][SIDE_LEFT ] -= s->slev * SQRT3_2; matrix[FRONT_LEFT ][SIDE_RIGHT] -= s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][SIDE_LEFT ] += s->slev * M_SQRT1_2; matrix[FRONT_RIGHT][SIDE_RIGHT] += s->slev * SQRT3_2; } else { matrix[ FRONT_LEFT][ SIDE_LEFT] += s->slev; matrix[FRONT_RIGHT][SIDE_RIGHT] += s->slev; } }else if(out_ch_layout & AV_CH_FRONT_CENTER){ matrix[ FRONT_CENTER][SIDE_LEFT ]+= s->slev*M_SQRT1_2; matrix[ FRONT_CENTER][SIDE_RIGHT]+= s->slev*M_SQRT1_2; }else av_assert0(0); } if(unaccounted & AV_CH_FRONT_LEFT_OF_CENTER){ if(out_ch_layout & AV_CH_FRONT_LEFT){ matrix[ FRONT_LEFT][ FRONT_LEFT_OF_CENTER]+= 1.0; matrix[FRONT_RIGHT][FRONT_RIGHT_OF_CENTER]+= 1.0; }else if(out_ch_layout & AV_CH_FRONT_CENTER){ matrix[ FRONT_CENTER][ FRONT_LEFT_OF_CENTER]+= M_SQRT1_2; matrix[ FRONT_CENTER][FRONT_RIGHT_OF_CENTER]+= M_SQRT1_2; }else av_assert0(0); } /* mix LFE into front left/right or center */ if (unaccounted & AV_CH_LOW_FREQUENCY) { if (out_ch_layout & AV_CH_FRONT_CENTER) { matrix[FRONT_CENTER][LOW_FREQUENCY] += s->lfe_mix_level; } else if (out_ch_layout & AV_CH_FRONT_LEFT) { matrix[FRONT_LEFT ][LOW_FREQUENCY] += s->lfe_mix_level * M_SQRT1_2; matrix[FRONT_RIGHT][LOW_FREQUENCY] += s->lfe_mix_level * M_SQRT1_2; } else av_assert0(0); } for(out_i=i=0; i<64; i++){ double sum=0; int in_i=0; for(j=0; j<64; j++){ s->matrix[out_i][in_i]= matrix[i][j]; if(matrix[i][j]){ sum += fabs(matrix[i][j]); } if(in_ch_layout & (1ULL<<j)) in_i++; } maxcoef= FFMAX(maxcoef, sum); if(out_ch_layout & (1ULL<<i)) out_i++; } if(s->rematrix_volume < 0) maxcoef = -s->rematrix_volume; if (s->rematrix_maxval > 0) { maxval = s->rematrix_maxval; } else if ( av_get_packed_sample_fmt(s->out_sample_fmt) < AV_SAMPLE_FMT_FLT || av_get_packed_sample_fmt(s->int_sample_fmt) < AV_SAMPLE_FMT_FLT) { maxval = 1.0; } else maxval = INT_MAX; if(maxcoef > maxval || s->rematrix_volume < 0){ maxcoef /= maxval; for(i=0; i<SWR_CH_MAX; i++) for(j=0; j<SWR_CH_MAX; j++){ s->matrix[i][j] /= maxcoef; } } if(s->rematrix_volume > 0){ for(i=0; i<SWR_CH_MAX; i++) for(j=0; j<SWR_CH_MAX; j++){ s->matrix[i][j] *= s->rematrix_volume; } } for(i=0; i<av_get_channel_layout_nb_channels(out_ch_layout); i++){ for(j=0; j<av_get_channel_layout_nb_channels(in_ch_layout); j++){ av_log(NULL, AV_LOG_DEBUG, "%f ", s->matrix[i][j]); } av_log(NULL, AV_LOG_DEBUG, "\n"); } return 0; }

FFmpeg

6dfffe92004dfd8c79d18791f28a2b1c7e387845

static inline void RENAME(rgb32tobgr16)(const uint8_t *src, uint8_t *dst, int src_size) { const uint8_t *s = src; const uint8_t *end; const uint8_t *mm_end; uint16_t *d = (uint16_t *)dst; end = s + src_size; __asm__ volatile(PREFETCH" %0"::"m"(*src):"memory"); __asm__ volatile( "movq %0, %%mm7 \n\t" "movq %1, %%mm6 \n\t" ::"m"(red_16mask),"m"(green_16mask)); mm_end = end - 15; while (s < mm_end) { __asm__ volatile( PREFETCH" 32%1 \n\t" "movd %1, %%mm0 \n\t" "movd 4%1, %%mm3 \n\t" "punpckldq 8%1, %%mm0 \n\t" "punpckldq 12%1, %%mm3 \n\t" "movq %%mm0, %%mm1 \n\t" "movq %%mm0, %%mm2 \n\t" "movq %%mm3, %%mm4 \n\t" "movq %%mm3, %%mm5 \n\t" "psllq $8, %%mm0 \n\t" "psllq $8, %%mm3 \n\t" "pand %%mm7, %%mm0 \n\t" "pand %%mm7, %%mm3 \n\t" "psrlq $5, %%mm1 \n\t" "psrlq $5, %%mm4 \n\t" "pand %%mm6, %%mm1 \n\t" "pand %%mm6, %%mm4 \n\t" "psrlq $19, %%mm2 \n\t" "psrlq $19, %%mm5 \n\t" "pand %2, %%mm2 \n\t" "pand %2, %%mm5 \n\t" "por %%mm1, %%mm0 \n\t" "por %%mm4, %%mm3 \n\t" "por %%mm2, %%mm0 \n\t" "por %%mm5, %%mm3 \n\t" "psllq $16, %%mm3 \n\t" "por %%mm3, %%mm0 \n\t" MOVNTQ" %%mm0, %0 \n\t" :"=m"(*d):"m"(*s),"m"(blue_16mask):"memory"); d += 4; s += 16; } __asm__ volatile(SFENCE:::"memory"); __asm__ volatile(EMMS:::"memory"); while (s < end) { register int rgb = *(const uint32_t*)s; s += 4; *d++ = ((rgb&0xF8)<<8) + ((rgb&0xFC00)>>5) + ((rgb&0xF80000)>>19); } }

FFmpeg

90540c2d5ace46a1e9789c75fde0b1f7dbb12a9b

static void g364fb_update_display(void *opaque) { G364State *s = opaque; if (s->width == 0 || s->height == 0) return; if (s->width != ds_get_width(s->ds) || s->height != ds_get_height(s->ds)) { qemu_console_resize(s->ds, s->width, s->height); } if (s->ctla & CTLA_FORCE_BLANK) { g364fb_draw_blank(s); } else if (s->depth == 8) { g364fb_draw_graphic8(s); } else { error_report("g364: unknown guest depth %d", s->depth); } qemu_irq_raise(s->irq); }

qemu

e9a07334fb6ee08ddd61787c102d36e7e781efef

static int decode_pic(AVSContext *h) { int ret; int skip_count = -1; enum cavs_mb mb_type; if (!h->top_qp) { av_log(h->avctx, AV_LOG_ERROR, "No sequence header decoded yet\n"); return AVERROR_INVALIDDATA; } av_frame_unref(h->cur.f); skip_bits(&h->gb, 16);//bbv_dwlay if (h->stc == PIC_PB_START_CODE) { h->cur.f->pict_type = get_bits(&h->gb, 2) + AV_PICTURE_TYPE_I; if (h->cur.f->pict_type > AV_PICTURE_TYPE_B) { av_log(h->avctx, AV_LOG_ERROR, "illegal picture type\n"); return AVERROR_INVALIDDATA; } /* make sure we have the reference frames we need */ if (!h->DPB[0].f->data[0] || (!h->DPB[1].f->data[0] && h->cur.f->pict_type == AV_PICTURE_TYPE_B)) return AVERROR_INVALIDDATA; } else { h->cur.f->pict_type = AV_PICTURE_TYPE_I; if (get_bits1(&h->gb)) skip_bits(&h->gb, 24);//time_code /* old sample clips were all progressive and no low_delay, bump stream revision if detected otherwise */ if (h->low_delay || !(show_bits(&h->gb, 9) & 1)) h->stream_revision = 1; /* similarly test top_field_first and repeat_first_field */ else if (show_bits(&h->gb, 11) & 3) h->stream_revision = 1; if (h->stream_revision > 0) skip_bits(&h->gb, 1); //marker_bit } ret = ff_get_buffer(h->avctx, h->cur.f, h->cur.f->pict_type == AV_PICTURE_TYPE_B ? 0 : AV_GET_BUFFER_FLAG_REF); if (ret < 0) return ret; if (!h->edge_emu_buffer) { int alloc_size = FFALIGN(FFABS(h->cur.f->linesize[0]) + 32, 32); h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 24); if (!h->edge_emu_buffer) return AVERROR(ENOMEM); } if ((ret = ff_cavs_init_pic(h)) < 0) return ret; h->cur.poc = get_bits(&h->gb, 8) * 2; /* get temporal distances and MV scaling factors */ if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { h->dist[0] = (h->cur.poc - h->DPB[0].poc) & 511; } else { h->dist[0] = (h->DPB[0].poc - h->cur.poc) & 511; } h->dist[1] = (h->cur.poc - h->DPB[1].poc) & 511; h->scale_den[0] = h->dist[0] ? 512/h->dist[0] : 0; h->scale_den[1] = h->dist[1] ? 512/h->dist[1] : 0; if (h->cur.f->pict_type == AV_PICTURE_TYPE_B) { h->sym_factor = h->dist[0] * h->scale_den[1]; if (FFABS(h->sym_factor) > 32768) { av_log(h->avctx, AV_LOG_ERROR, "sym_factor %d too large\n", h->sym_factor); return AVERROR_INVALIDDATA; } } else { h->direct_den[0] = h->dist[0] ? 16384 / h->dist[0] : 0; h->direct_den[1] = h->dist[1] ? 16384 / h->dist[1] : 0; } if (h->low_delay) get_ue_golomb(&h->gb); //bbv_check_times h->progressive = get_bits1(&h->gb); h->pic_structure = 1; if (!h->progressive) h->pic_structure = get_bits1(&h->gb); if (!h->pic_structure && h->stc == PIC_PB_START_CODE) skip_bits1(&h->gb); //advanced_pred_mode_disable skip_bits1(&h->gb); //top_field_first skip_bits1(&h->gb); //repeat_first_field h->pic_qp_fixed = h->qp_fixed = get_bits1(&h->gb); h->qp = get_bits(&h->gb, 6); if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) { if (!h->progressive && !h->pic_structure) skip_bits1(&h->gb);//what is this? skip_bits(&h->gb, 4); //reserved bits } else { if (!(h->cur.f->pict_type == AV_PICTURE_TYPE_B && h->pic_structure == 1)) h->ref_flag = get_bits1(&h->gb); skip_bits(&h->gb, 4); //reserved bits h->skip_mode_flag = get_bits1(&h->gb); } h->loop_filter_disable = get_bits1(&h->gb); if (!h->loop_filter_disable && get_bits1(&h->gb)) { h->alpha_offset = get_se_golomb(&h->gb); h->beta_offset = get_se_golomb(&h->gb); } else { h->alpha_offset = h->beta_offset = 0; } if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) { do { check_for_slice(h); decode_mb_i(h, 0); } while (ff_cavs_next_mb(h)); } else if (h->cur.f->pict_type == AV_PICTURE_TYPE_P) { do { if (check_for_slice(h)) skip_count = -1; if (h->skip_mode_flag && (skip_count < 0)) skip_count = get_ue_golomb(&h->gb); if (h->skip_mode_flag && skip_count--) { decode_mb_p(h, P_SKIP); } else { mb_type = get_ue_golomb(&h->gb) + P_SKIP + h->skip_mode_flag; if (mb_type > P_8X8) decode_mb_i(h, mb_type - P_8X8 - 1); else decode_mb_p(h, mb_type); } } while (ff_cavs_next_mb(h)); } else { /* AV_PICTURE_TYPE_B */ do { if (check_for_slice(h)) skip_count = -1; if (h->skip_mode_flag && (skip_count < 0)) skip_count = get_ue_golomb(&h->gb); if (h->skip_mode_flag && skip_count--) { decode_mb_b(h, B_SKIP); } else { mb_type = get_ue_golomb(&h->gb) + B_SKIP + h->skip_mode_flag; if (mb_type > B_8X8) decode_mb_i(h, mb_type - B_8X8 - 1); else decode_mb_b(h, mb_type); } } while (ff_cavs_next_mb(h)); } emms_c(); if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { av_frame_unref(h->DPB[1].f); FFSWAP(AVSFrame, h->cur, h->DPB[1]); FFSWAP(AVSFrame, h->DPB[0], h->DPB[1]); } return 0; }

FFmpeg

426a322aa2bfd8ec28e467743c79dad81c63c108

static void bmds_set_aio_inflight(BlkMigDevState *bmds, int64_t sector_num, int nb_sectors, int set) { int64_t start, end; unsigned long val, idx, bit; start = sector_num / BDRV_SECTORS_PER_DIRTY_CHUNK; end = (sector_num + nb_sectors - 1) / BDRV_SECTORS_PER_DIRTY_CHUNK; for (; start <= end; start++) { idx = start / (sizeof(unsigned long) * 8); bit = start % (sizeof(unsigned long) * 8); val = bmds->aio_bitmap[idx]; if (set) { val |= 1UL << bit; } else { val &= ~(1UL << bit); } bmds->aio_bitmap[idx] = val; } }

qemu

60fe637bf0e4d7989e21e50f52526444765c63b4