Datasets:

google

/

code_x_glue_cc_defect_detection

like 22

Follow

Google 3,982

iscsi_co_generic_cb(struct iscsi_context *iscsi, int status, void *command_data, void *opaque) { struct IscsiTask *iTask = opaque; struct scsi_task *task = command_data; iTask->status = status; iTask->do_retry = 0; iTask->task = task; if (status != SCSI_STATUS_GOOD) { if (iTask->retries++ < ISCSI_CMD_RETRIES) { if (status == SCSI_STATUS_CHECK_CONDITION && task->sense.key == SCSI_SENSE_UNIT_ATTENTION) { error_report("iSCSI CheckCondition: %s", iscsi_get_error(iscsi)); iTask->do_retry = 1; goto out; } /* status 0x28 is SCSI_TASK_SET_FULL. It was first introduced * in libiscsi 1.10.0. Hardcode this value here to avoid * the need to bump the libiscsi requirement to 1.10.0 */ if (status == SCSI_STATUS_BUSY || status == 0x28) { unsigned retry_time = exp_random(iscsi_retry_times[iTask->retries - 1]); error_report("iSCSI Busy/TaskSetFull (retry #%u in %u ms): %s", iTask->retries, retry_time, iscsi_get_error(iscsi)); aio_timer_init(iTask->iscsilun->aio_context, &iTask->retry_timer, QEMU_CLOCK_REALTIME, SCALE_MS, iscsi_retry_timer_expired, iTask); timer_mod(&iTask->retry_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + retry_time); iTask->do_retry = 1; return; } } error_report("iSCSI Failure: %s", iscsi_get_error(iscsi)); } else { iTask->iscsilun->force_next_flush |= iTask->force_next_flush; } out: if (iTask->co) { iTask->bh = aio_bh_new(iTask->iscsilun->aio_context, iscsi_co_generic_bh_cb, iTask); qemu_bh_schedule(iTask->bh); } else { iTask->complete = 1; } }

qemu

5dd7a535b71a0f2f8e7af75c5d694174359ce323

int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples, int *frame_size_ptr, AVPacket *avpkt) { AVFrame frame = {0}; int ret, got_frame = 0; if (avctx->get_buffer != avcodec_default_get_buffer) { av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with" "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n"); av_log(avctx, AV_LOG_ERROR, "Please port your application to " "avcodec_decode_audio4()\n"); avctx->get_buffer = avcodec_default_get_buffer; } ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt); if (ret >= 0 && got_frame) { int ch, plane_size; int planar = av_sample_fmt_is_planar(avctx->sample_fmt); int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels, frame.nb_samples, avctx->sample_fmt, 1); if (*frame_size_ptr < data_size) { av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for " "the current frame (%d < %d)\n", *frame_size_ptr, data_size); return AVERROR(EINVAL); } memcpy(samples, frame.extended_data[0], plane_size); if (planar && avctx->channels > 1) { uint8_t *out = ((uint8_t *)samples) + plane_size; for (ch = 1; ch < avctx->channels; ch++) { memcpy(out, frame.extended_data[ch], plane_size); out += plane_size; } } *frame_size_ptr = data_size; } else { *frame_size_ptr = 0; } return ret; }

FFmpeg

015da965a68bdb48819dc98317888fc84eced599

static int ape_read_header(AVFormatContext * s) { AVIOContext *pb = s->pb; APEContext *ape = s->priv_data; AVStream *st; uint32_t tag; int i; int total_blocks, final_size = 0; int64_t pts, file_size; /* Skip any leading junk such as id3v2 tags */ ape->junklength = avio_tell(pb); tag = avio_rl32(pb); if (tag != MKTAG('M', 'A', 'C', ' ')) return AVERROR_INVALIDDATA; ape->fileversion = avio_rl16(pb); if (ape->fileversion < APE_MIN_VERSION || ape->fileversion > APE_MAX_VERSION) { av_log(s, AV_LOG_ERROR, "Unsupported file version - %d.%02d\n", ape->fileversion / 1000, (ape->fileversion % 1000) / 10); return AVERROR_PATCHWELCOME; } if (ape->fileversion >= 3980) { ape->padding1 = avio_rl16(pb); ape->descriptorlength = avio_rl32(pb); ape->headerlength = avio_rl32(pb); ape->seektablelength = avio_rl32(pb); ape->wavheaderlength = avio_rl32(pb); ape->audiodatalength = avio_rl32(pb); ape->audiodatalength_high = avio_rl32(pb); ape->wavtaillength = avio_rl32(pb); avio_read(pb, ape->md5, 16); /* Skip any unknown bytes at the end of the descriptor. This is for future compatibility */ if (ape->descriptorlength > 52) avio_skip(pb, ape->descriptorlength - 52); /* Read header data */ ape->compressiontype = avio_rl16(pb); ape->formatflags = avio_rl16(pb); ape->blocksperframe = avio_rl32(pb); ape->finalframeblocks = avio_rl32(pb); ape->totalframes = avio_rl32(pb); ape->bps = avio_rl16(pb); ape->channels = avio_rl16(pb); ape->samplerate = avio_rl32(pb); } else { ape->descriptorlength = 0; ape->headerlength = 32; ape->compressiontype = avio_rl16(pb); ape->formatflags = avio_rl16(pb); ape->channels = avio_rl16(pb); ape->samplerate = avio_rl32(pb); ape->wavheaderlength = avio_rl32(pb); ape->wavtaillength = avio_rl32(pb); ape->totalframes = avio_rl32(pb); ape->finalframeblocks = avio_rl32(pb); if (ape->formatflags & MAC_FORMAT_FLAG_HAS_PEAK_LEVEL) { avio_skip(pb, 4); /* Skip the peak level */ ape->headerlength += 4; } if (ape->formatflags & MAC_FORMAT_FLAG_HAS_SEEK_ELEMENTS) { ape->seektablelength = avio_rl32(pb); ape->headerlength += 4; ape->seektablelength *= sizeof(int32_t); } else ape->seektablelength = ape->totalframes * sizeof(int32_t); if (ape->formatflags & MAC_FORMAT_FLAG_8_BIT) ape->bps = 8; else if (ape->formatflags & MAC_FORMAT_FLAG_24_BIT) ape->bps = 24; else ape->bps = 16; if (ape->fileversion >= 3950) ape->blocksperframe = 73728 * 4; else if (ape->fileversion >= 3900 || (ape->fileversion >= 3800 && ape->compressiontype >= 4000)) ape->blocksperframe = 73728; else ape->blocksperframe = 9216; /* Skip any stored wav header */ if (!(ape->formatflags & MAC_FORMAT_FLAG_CREATE_WAV_HEADER)) avio_skip(pb, ape->wavheaderlength); } if(!ape->totalframes){ av_log(s, AV_LOG_ERROR, "No frames in the file!\n"); return AVERROR(EINVAL); } if(ape->totalframes > UINT_MAX / sizeof(APEFrame)){ av_log(s, AV_LOG_ERROR, "Too many frames: %"PRIu32"\n", ape->totalframes); return AVERROR_INVALIDDATA; } if (ape->seektablelength / sizeof(*ape->seektable) < ape->totalframes) { av_log(s, AV_LOG_ERROR, "Number of seek entries is less than number of frames: %zu vs. %"PRIu32"\n", ape->seektablelength / sizeof(*ape->seektable), ape->totalframes); return AVERROR_INVALIDDATA; } ape->frames = av_malloc(ape->totalframes * sizeof(APEFrame)); if(!ape->frames) return AVERROR(ENOMEM); ape->firstframe = ape->junklength + ape->descriptorlength + ape->headerlength + ape->seektablelength + ape->wavheaderlength; if (ape->fileversion < 3810) ape->firstframe += ape->totalframes; ape->currentframe = 0; ape->totalsamples = ape->finalframeblocks; if (ape->totalframes > 1) ape->totalsamples += ape->blocksperframe * (ape->totalframes - 1); if (ape->seektablelength > 0) { ape->seektable = av_malloc(ape->seektablelength); if (!ape->seektable) return AVERROR(ENOMEM); for (i = 0; i < ape->seektablelength / sizeof(uint32_t) && !pb->eof_reached; i++) ape->seektable[i] = avio_rl32(pb); if (ape->fileversion < 3810) { ape->bittable = av_malloc(ape->totalframes); if (!ape->bittable) return AVERROR(ENOMEM); for (i = 0; i < ape->totalframes && !pb->eof_reached; i++) ape->bittable[i] = avio_r8(pb); } } ape->frames[0].pos = ape->firstframe; ape->frames[0].nblocks = ape->blocksperframe; ape->frames[0].skip = 0; for (i = 1; i < ape->totalframes; i++) { ape->frames[i].pos = ape->seektable[i] + ape->junklength; ape->frames[i].nblocks = ape->blocksperframe; ape->frames[i - 1].size = ape->frames[i].pos - ape->frames[i - 1].pos; ape->frames[i].skip = (ape->frames[i].pos - ape->frames[0].pos) & 3; } ape->frames[ape->totalframes - 1].nblocks = ape->finalframeblocks; /* calculate final packet size from total file size, if available */ file_size = avio_size(pb); if (file_size > 0) { final_size = file_size - ape->frames[ape->totalframes - 1].pos - ape->wavtaillength; final_size -= final_size & 3; } if (file_size <= 0 || final_size <= 0) final_size = ape->finalframeblocks * 8; ape->frames[ape->totalframes - 1].size = final_size; for (i = 0; i < ape->totalframes; i++) { if(ape->frames[i].skip){ ape->frames[i].pos -= ape->frames[i].skip; ape->frames[i].size += ape->frames[i].skip; } ape->frames[i].size = (ape->frames[i].size + 3) & ~3; } if (ape->fileversion < 3810) { for (i = 0; i < ape->totalframes; i++) { if (i < ape->totalframes - 1 && ape->bittable[i + 1]) ape->frames[i].size += 4; ape->frames[i].skip <<= 3; ape->frames[i].skip += ape->bittable[i]; } } ape_dumpinfo(s, ape); av_log(s, AV_LOG_DEBUG, "Decoding file - v%d.%02d, compression level %"PRIu16"\n", ape->fileversion / 1000, (ape->fileversion % 1000) / 10, ape->compressiontype); /* now we are ready: build format streams */ st = avformat_new_stream(s, NULL); if (!st) return AVERROR(ENOMEM); total_blocks = (ape->totalframes == 0) ? 0 : ((ape->totalframes - 1) * ape->blocksperframe) + ape->finalframeblocks; st->codec->codec_type = AVMEDIA_TYPE_AUDIO; st->codec->codec_id = AV_CODEC_ID_APE; st->codec->codec_tag = MKTAG('A', 'P', 'E', ' '); st->codec->channels = ape->channels; st->codec->sample_rate = ape->samplerate; st->codec->bits_per_coded_sample = ape->bps; st->nb_frames = ape->totalframes; st->start_time = 0; st->duration = total_blocks; avpriv_set_pts_info(st, 64, 1, ape->samplerate); if (ff_alloc_extradata(st->codec, APE_EXTRADATA_SIZE)) return AVERROR(ENOMEM); AV_WL16(st->codec->extradata + 0, ape->fileversion); AV_WL16(st->codec->extradata + 2, ape->compressiontype); AV_WL16(st->codec->extradata + 4, ape->formatflags); pts = 0; for (i = 0; i < ape->totalframes; i++) { ape->frames[i].pts = pts; av_add_index_entry(st, ape->frames[i].pos, ape->frames[i].pts, 0, 0, AVINDEX_KEYFRAME); pts += ape->blocksperframe; } /* try to read APE tags */ if (pb->seekable) { ff_ape_parse_tag(s); avio_seek(pb, 0, SEEK_SET); } return 0; }

FFmpeg

3cfa310c5de526dbc40d7b33eb6234cff29d8f8c

int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile, int level) { VDPAUHWContext *hwctx = avctx->hwaccel_context; VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data; VdpVideoSurfaceQueryCapabilities *surface_query_caps; VdpDecoderQueryCapabilities *decoder_query_caps; VdpDecoderCreate *create; void *func; VdpStatus status; VdpBool supported; uint32_t max_level, max_mb, max_width, max_height; VdpChromaType type; uint32_t width; uint32_t height; vdctx->width = UINT32_MAX; vdctx->height = UINT32_MAX; if (av_vdpau_get_surface_parameters(avctx, &type, &width, &height)) return AVERROR(ENOSYS); if (hwctx) { hwctx->reset = 0; if (hwctx->context.decoder != VDP_INVALID_HANDLE) { vdctx->decoder = hwctx->context.decoder; vdctx->render = hwctx->context.render; vdctx->device = VDP_INVALID_HANDLE; return 0; /* Decoder created by user */ } vdctx->device = hwctx->device; vdctx->get_proc_address = hwctx->get_proc_address; if (hwctx->flags & AV_HWACCEL_FLAG_IGNORE_LEVEL) level = 0; if (!(hwctx->flags & AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH) && type != VDP_CHROMA_TYPE_420) return AVERROR(ENOSYS); } else { AVHWFramesContext *frames_ctx = NULL; AVVDPAUDeviceContext *dev_ctx; // We assume the hw_frames_ctx always survives until ff_vdpau_common_uninit // is called. This holds true as the user is not allowed to touch // hw_device_ctx, or hw_frames_ctx after get_format (and ff_get_format // itself also uninits before unreffing hw_frames_ctx). if (avctx->hw_frames_ctx) { frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data; } else if (avctx->hw_device_ctx) { int ret; avctx->hw_frames_ctx = av_hwframe_ctx_alloc(avctx->hw_device_ctx); if (!avctx->hw_frames_ctx) return AVERROR(ENOMEM); frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data; frames_ctx->format = AV_PIX_FMT_VDPAU; frames_ctx->sw_format = avctx->sw_pix_fmt; frames_ctx->width = avctx->coded_width; frames_ctx->height = avctx->coded_height; ret = av_hwframe_ctx_init(avctx->hw_frames_ctx); if (ret < 0) { av_buffer_unref(&avctx->hw_frames_ctx); return ret; } } if (!frames_ctx) { av_log(avctx, AV_LOG_ERROR, "A hardware frames context is " "required for VDPAU decoding.\n"); return AVERROR(EINVAL); } dev_ctx = frames_ctx->device_ctx->hwctx; vdctx->device = dev_ctx->device; vdctx->get_proc_address = dev_ctx->get_proc_address; if (avctx->hwaccel_flags & AV_HWACCEL_FLAG_IGNORE_LEVEL) level = 0; } if (level < 0) return AVERROR(ENOTSUP); status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_GET_INFORMATION_STRING, &func); if (status != VDP_STATUS_OK) return vdpau_error(status); else info = func; status = info(&info_string); if (status != VDP_STATUS_OK) return vdpau_error(status); if (avctx->codec_id == AV_CODEC_ID_HEVC && strncmp(info_string, "NVIDIA ", 7) == 0 && !(avctx->hwaccel_flags & AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH)) { av_log(avctx, AV_LOG_VERBOSE, "HEVC with NVIDIA VDPAU drivers is buggy, skipping.\n"); return AVERROR(ENOTSUP); } status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES, &func); if (status != VDP_STATUS_OK) return vdpau_error(status); else surface_query_caps = func; status = surface_query_caps(vdctx->device, type, &supported, &max_width, &max_height); if (status != VDP_STATUS_OK) return vdpau_error(status); if (supported != VDP_TRUE || max_width < width || max_height < height) return AVERROR(ENOTSUP); status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES, &func); if (status != VDP_STATUS_OK) return vdpau_error(status); else decoder_query_caps = func; status = decoder_query_caps(vdctx->device, profile, &supported, &max_level, &max_mb, &max_width, &max_height); #ifdef VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE if ((status != VDP_STATUS_OK || supported != VDP_TRUE) && profile == VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE) { profile = VDP_DECODER_PROFILE_H264_MAIN; status = decoder_query_caps(vdctx->device, profile, &supported, &max_level, &max_mb, &max_width, &max_height); } #endif if (status != VDP_STATUS_OK) return vdpau_error(status); if (supported != VDP_TRUE || max_level < level || max_width < width || max_height < height) return AVERROR(ENOTSUP); status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_CREATE, &func); if (status != VDP_STATUS_OK) return vdpau_error(status); else create = func; status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_RENDER, &func); if (status != VDP_STATUS_OK) return vdpau_error(status); else vdctx->render = func; status = create(vdctx->device, profile, width, height, avctx->refs, &vdctx->decoder); if (status == VDP_STATUS_OK) { vdctx->width = avctx->coded_width; vdctx->height = avctx->coded_height; } return vdpau_error(status); }

FFmpeg

64ecb78b7179cab2dbdf835463104679dbb7c895

static int idcin_probe(AVProbeData *p) { unsigned int number, sample_rate; /* * This is what you could call a "probabilistic" file check: id CIN * files don't have a definite file signature. In lieu of such a marker, * perform sanity checks on the 5 32-bit header fields: * width, height: greater than 0, less than or equal to 1024 * audio sample rate: greater than or equal to 8000, less than or * equal to 48000, or 0 for no audio * audio sample width (bytes/sample): 0 for no audio, or 1 or 2 * audio channels: 0 for no audio, or 1 or 2 */ /* check we have enough data to do all checks, otherwise the 0-padding may cause a wrong recognition */ if (p->buf_size < 20) return 0; /* check the video width */ number = AV_RL32(&p->buf[0]); if ((number == 0) || (number > 1024)) return 0; /* check the video height */ number = AV_RL32(&p->buf[4]); if ((number == 0) || (number > 1024)) return 0; /* check the audio sample rate */ sample_rate = AV_RL32(&p->buf[8]); if (sample_rate && (sample_rate < 8000 || sample_rate > 48000)) return 0; /* check the audio bytes/sample */ number = AV_RL32(&p->buf[12]); if (number > 2 || sample_rate && !number) return 0; /* check the audio channels */ number = AV_RL32(&p->buf[16]); if (number > 2 || sample_rate && !number) return 0; /* return half certainty since this check is a bit sketchy */ return AVPROBE_SCORE_EXTENSION; }

FFmpeg

4c439f6e3999ae534991ecde943e45b00c80b8d2

static inline int hpel_motion(MpegEncContext *s, uint8_t *dest, uint8_t *src, int src_x, int src_y, op_pixels_func *pix_op, int motion_x, int motion_y) { int dxy = 0; int emu = 0; src_x += motion_x >> 1; src_y += motion_y >> 1; /* WARNING: do no forget half pels */ src_x = av_clip(src_x, -16, s->width); // FIXME unneeded for emu? if (src_x != s->width) dxy |= motion_x & 1; src_y = av_clip(src_y, -16, s->height); if (src_y != s->height) dxy |= (motion_y & 1) << 1; src += src_y * s->linesize + src_x; if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 1) - 8, 0) || (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y & 1) - 8, 0)) { s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, s->linesize, 9, 9, src_x, src_y, s->h_edge_pos, s->v_edge_pos); src = s->edge_emu_buffer; emu = 1; } pix_op[dxy](dest, src, s->linesize, 8); return emu; }

FFmpeg

9f0eaf792a8560a089643489403e549c30fb3170

static inline void downmix_dualmono_to_mono(float *samples) { int i; for (i = 0; i < 256; i++) { samples[i] += samples[i + 256]; samples[i + 256] = 0; } }

FFmpeg

0058584580b87feb47898e60e4b80c7f425882ad

SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, DriveInfo *dinfo, int unit) { const char *driver; DeviceState *dev; driver = bdrv_is_sg(dinfo->bdrv) ? "scsi-generic" : "scsi-disk"; dev = qdev_create(&bus->qbus, driver); qdev_prop_set_uint32(dev, "scsi-id", unit); qdev_prop_set_drive(dev, "drive", dinfo); qdev_init(dev); return DO_UPCAST(SCSIDevice, qdev, dev); }

qemu

33e66b86d89040f0a9e99aa53deb74ce8936a649

static int film_read_close(AVFormatContext *s) { FilmDemuxContext *film = s->priv_data; av_free(film->sample_table); av_free(film->stereo_buffer); return 0; }

FFmpeg

6892d145a0c80249bd61ee7dd31ec851c5076bcd

static av_cold int libschroedinger_decode_init(AVCodecContext *avctx) { SchroDecoderParams *p_schro_params = avctx->priv_data; /* First of all, initialize our supporting libraries. */ schro_init(); schro_debug_set_level(avctx->debug); p_schro_params->decoder = schro_decoder_new(); schro_decoder_set_skip_ratio(p_schro_params->decoder, 1); if (!p_schro_params->decoder) return -1; /* Initialize the decoded frame queue. */ ff_schro_queue_init(&p_schro_params->dec_frame_queue); return 0; }

FFmpeg

220b24c7c97dc033ceab1510549f66d0e7b52ef1

static void update_stream_timings(AVFormatContext *ic) { int64_t start_time, start_time1, start_time_text, end_time, end_time1; int64_t duration, duration1, filesize; int i; AVStream *st; AVProgram *p; start_time = INT64_MAX; start_time_text = INT64_MAX; end_time = INT64_MIN; duration = INT64_MIN; for(i = 0;i < ic->nb_streams; i++) { st = ic->streams[i]; if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) { start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q); if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codec->codec_type == AVMEDIA_TYPE_DATA) { if (start_time1 < start_time_text) start_time_text = start_time1; } else start_time = FFMIN(start_time, start_time1); end_time1 = AV_NOPTS_VALUE; if (st->duration != AV_NOPTS_VALUE) { end_time1 = start_time1 + av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q); end_time = FFMAX(end_time, end_time1); } for(p = NULL; (p = av_find_program_from_stream(ic, p, i)); ){ if(p->start_time == AV_NOPTS_VALUE || p->start_time > start_time1) p->start_time = start_time1; if(p->end_time < end_time1) p->end_time = end_time1; } } if (st->duration != AV_NOPTS_VALUE) { duration1 = av_rescale_q(st->duration, st->time_base, AV_TIME_BASE_Q); duration = FFMAX(duration, duration1); } } if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text < AV_TIME_BASE)) start_time = start_time_text; else if(start_time > start_time_text) av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream starttime %f\n", start_time_text / (float)AV_TIME_BASE); if (start_time != INT64_MAX) { ic->start_time = start_time; if (end_time != INT64_MIN) { if (ic->nb_programs) { for (i=0; i<ic->nb_programs; i++) { p = ic->programs[i]; if(p->start_time != AV_NOPTS_VALUE && p->end_time > p->start_time) duration = FFMAX(duration, p->end_time - p->start_time); } } else duration = FFMAX(duration, end_time - start_time); } } if (duration != INT64_MIN && duration > 0 && ic->duration == AV_NOPTS_VALUE) { ic->duration = duration; } if (ic->pb && (filesize = avio_size(ic->pb)) > 0 && ic->duration != AV_NOPTS_VALUE) { /* compute the bitrate */ ic->bit_rate = (double)filesize * 8.0 * AV_TIME_BASE / (double)ic->duration; } }

FFmpeg

7992bdbeb4ba72a9d28e72acc2b3bc0d198401ec

static int sd_open(BlockDriverState *bs, QDict *options, int flags, Error **errp) { int ret, fd; uint32_t vid = 0; BDRVSheepdogState *s = bs->opaque; char vdi[SD_MAX_VDI_LEN], tag[SD_MAX_VDI_TAG_LEN]; uint32_t snapid; char *buf = NULL; QemuOpts *opts; Error *local_err = NULL; const char *filename; s->bs = bs; s->aio_context = bdrv_get_aio_context(bs); opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort); qemu_opts_absorb_qdict(opts, options, &local_err); if (local_err) { error_propagate(errp, local_err); ret = -EINVAL; goto err_no_fd; } filename = qemu_opt_get(opts, "filename"); QLIST_INIT(&s->inflight_aio_head); QLIST_INIT(&s->failed_aio_head); QLIST_INIT(&s->inflight_aiocb_head); s->fd = -1; memset(vdi, 0, sizeof(vdi)); memset(tag, 0, sizeof(tag)); if (strstr(filename, "://")) { ret = sd_parse_uri(s, filename, vdi, &snapid, tag); } else { ret = parse_vdiname(s, filename, vdi, &snapid, tag); } if (ret < 0) { error_setg(errp, "Can't parse filename"); goto err_no_fd; } s->fd = get_sheep_fd(s, errp); if (s->fd < 0) { ret = s->fd; goto err_no_fd; } ret = find_vdi_name(s, vdi, snapid, tag, &vid, true, errp); if (ret) { goto err; } /* * QEMU block layer emulates writethrough cache as 'writeback + flush', so * we always set SD_FLAG_CMD_CACHE (writeback cache) as default. */ s->cache_flags = SD_FLAG_CMD_CACHE; if (flags & BDRV_O_NOCACHE) { s->cache_flags = SD_FLAG_CMD_DIRECT; } s->discard_supported = true; if (snapid || tag[0] != '\0') { DPRINTF("%" PRIx32 " snapshot inode was open.\n", vid); s->is_snapshot = true; } fd = connect_to_sdog(s, errp); if (fd < 0) { ret = fd; goto err; } buf = g_malloc(SD_INODE_SIZE); ret = read_object(fd, s->bs, buf, vid_to_vdi_oid(vid), 0, SD_INODE_SIZE, 0, s->cache_flags); closesocket(fd); if (ret) { error_setg(errp, "Can't read snapshot inode"); goto err; } memcpy(&s->inode, buf, sizeof(s->inode)); bs->total_sectors = s->inode.vdi_size / BDRV_SECTOR_SIZE; pstrcpy(s->name, sizeof(s->name), vdi); qemu_co_mutex_init(&s->lock); qemu_co_queue_init(&s->overlapping_queue); qemu_opts_del(opts); g_free(buf); return 0; err: aio_set_fd_handler(bdrv_get_aio_context(bs), s->fd, false, NULL, NULL, NULL, NULL); closesocket(s->fd); err_no_fd: qemu_opts_del(opts); g_free(buf); return ret; }

qemu

36bcac16fdd6ecb75314db06171f54dcd400ab8c

static void pixel_format_message (VncState *vs) { char pad[3] = { 0, 0, 0 }; vnc_write_u8(vs, vs->depth * 8); /* bits-per-pixel */ if (vs->depth == 4) vnc_write_u8(vs, 24); /* depth */ else vnc_write_u8(vs, vs->depth * 8); /* depth */ #ifdef WORDS_BIGENDIAN vnc_write_u8(vs, 1); /* big-endian-flag */ #else vnc_write_u8(vs, 0); /* big-endian-flag */ #endif vnc_write_u8(vs, 1); /* true-color-flag */ if (vs->depth == 4) { vnc_write_u16(vs, 0xFF); /* red-max */ vnc_write_u16(vs, 0xFF); /* green-max */ vnc_write_u16(vs, 0xFF); /* blue-max */ vnc_write_u8(vs, 16); /* red-shift */ vnc_write_u8(vs, 8); /* green-shift */ vnc_write_u8(vs, 0); /* blue-shift */ vs->send_hextile_tile = send_hextile_tile_32; } else if (vs->depth == 2) { vnc_write_u16(vs, 31); /* red-max */ vnc_write_u16(vs, 63); /* green-max */ vnc_write_u16(vs, 31); /* blue-max */ vnc_write_u8(vs, 11); /* red-shift */ vnc_write_u8(vs, 5); /* green-shift */ vnc_write_u8(vs, 0); /* blue-shift */ vs->send_hextile_tile = send_hextile_tile_16; } else if (vs->depth == 1) { /* XXX: change QEMU pixel 8 bit pixel format to match the VNC one ? */ vnc_write_u16(vs, 7); /* red-max */ vnc_write_u16(vs, 7); /* green-max */ vnc_write_u16(vs, 3); /* blue-max */ vnc_write_u8(vs, 5); /* red-shift */ vnc_write_u8(vs, 2); /* green-shift */ vnc_write_u8(vs, 0); /* blue-shift */ vs->send_hextile_tile = send_hextile_tile_8; } vs->client_red_max = vs->server_red_max; vs->client_green_max = vs->server_green_max; vs->client_blue_max = vs->server_blue_max; vs->client_red_shift = vs->server_red_shift; vs->client_green_shift = vs->server_green_shift; vs->client_blue_shift = vs->server_blue_shift; vs->pix_bpp = vs->depth * 8; vs->write_pixels = vnc_write_pixels_copy; vnc_write(vs, pad, 3); /* padding */ }

qemu

6cec5487990bf3f1f22b3fcb871978255e92ae0d

static int decode_frame_header(VP8Context *s, const uint8_t *buf, int buf_size) { VP56RangeCoder *c = &s->c; int header_size, hscale, vscale, i, j, k, l, m, ret; int width = s->avctx->width; int height = s->avctx->height; s->keyframe = !(buf[0] & 1); s->profile = (buf[0]>>1) & 7; s->invisible = !(buf[0] & 0x10); header_size = AV_RL24(buf) >> 5; buf += 3; buf_size -= 3; if (s->profile > 3) av_log(s->avctx, AV_LOG_WARNING, "Unknown profile %d\n", s->profile); if (!s->profile) memcpy(s->put_pixels_tab, s->vp8dsp.put_vp8_epel_pixels_tab, sizeof(s->put_pixels_tab)); else // profile 1-3 use bilinear, 4+ aren't defined so whatever memcpy(s->put_pixels_tab, s->vp8dsp.put_vp8_bilinear_pixels_tab, sizeof(s->put_pixels_tab)); if (header_size > buf_size - 7*s->keyframe) { av_log(s->avctx, AV_LOG_ERROR, "Header size larger than data provided\n"); return AVERROR_INVALIDDATA; } if (s->keyframe) { if (AV_RL24(buf) != 0x2a019d) { av_log(s->avctx, AV_LOG_ERROR, "Invalid start code 0x%x\n", AV_RL24(buf)); return AVERROR_INVALIDDATA; } width = AV_RL16(buf+3) & 0x3fff; height = AV_RL16(buf+5) & 0x3fff; hscale = buf[4] >> 6; vscale = buf[6] >> 6; buf += 7; buf_size -= 7; if (hscale || vscale) av_log_missing_feature(s->avctx, "Upscaling", 1); s->update_golden = s->update_altref = VP56_FRAME_CURRENT; for (i = 0; i < 4; i++) for (j = 0; j < 16; j++) memcpy(s->prob->token[i][j], vp8_token_default_probs[i][vp8_coeff_band[j]], sizeof(s->prob->token[i][j])); memcpy(s->prob->pred16x16, vp8_pred16x16_prob_inter, sizeof(s->prob->pred16x16)); memcpy(s->prob->pred8x8c , vp8_pred8x8c_prob_inter , sizeof(s->prob->pred8x8c)); memcpy(s->prob->mvc , vp8_mv_default_prob , sizeof(s->prob->mvc)); memset(&s->segmentation, 0, sizeof(s->segmentation)); } if (!s->macroblocks_base || /* first frame */ width != s->avctx->width || height != s->avctx->height) { if ((ret = update_dimensions(s, width, height)) < 0) return ret; } ff_vp56_init_range_decoder(c, buf, header_size); buf += header_size; buf_size -= header_size; if (s->keyframe) { if (vp8_rac_get(c)) av_log(s->avctx, AV_LOG_WARNING, "Unspecified colorspace\n"); vp8_rac_get(c); // whether we can skip clamping in dsp functions } if ((s->segmentation.enabled = vp8_rac_get(c))) parse_segment_info(s); else s->segmentation.update_map = 0; // FIXME: move this to some init function? s->filter.simple = vp8_rac_get(c); s->filter.level = vp8_rac_get_uint(c, 6); s->filter.sharpness = vp8_rac_get_uint(c, 3); if ((s->lf_delta.enabled = vp8_rac_get(c))) if (vp8_rac_get(c)) update_lf_deltas(s); if (setup_partitions(s, buf, buf_size)) { av_log(s->avctx, AV_LOG_ERROR, "Invalid partitions\n"); return AVERROR_INVALIDDATA; } get_quants(s); if (!s->keyframe) { update_refs(s); s->sign_bias[VP56_FRAME_GOLDEN] = vp8_rac_get(c); s->sign_bias[VP56_FRAME_GOLDEN2 /* altref */] = vp8_rac_get(c); } // if we aren't saving this frame's probabilities for future frames, // make a copy of the current probabilities if (!(s->update_probabilities = vp8_rac_get(c))) s->prob[1] = s->prob[0]; s->update_last = s->keyframe || vp8_rac_get(c); for (i = 0; i < 4; i++) for (j = 0; j < 8; j++) for (k = 0; k < 3; k++) for (l = 0; l < NUM_DCT_TOKENS-1; l++) if (vp56_rac_get_prob_branchy(c, vp8_token_update_probs[i][j][k][l])) { int prob = vp8_rac_get_uint(c, 8); for (m = 0; vp8_coeff_band_indexes[j][m] >= 0; m++) s->prob->token[i][vp8_coeff_band_indexes[j][m]][k][l] = prob; } if ((s->mbskip_enabled = vp8_rac_get(c))) s->prob->mbskip = vp8_rac_get_uint(c, 8); if (!s->keyframe) { s->prob->intra = vp8_rac_get_uint(c, 8); s->prob->last = vp8_rac_get_uint(c, 8); s->prob->golden = vp8_rac_get_uint(c, 8); if (vp8_rac_get(c)) for (i = 0; i < 4; i++) s->prob->pred16x16[i] = vp8_rac_get_uint(c, 8); if (vp8_rac_get(c)) for (i = 0; i < 3; i++) s->prob->pred8x8c[i] = vp8_rac_get_uint(c, 8); // 17.2 MV probability update for (i = 0; i < 2; i++) for (j = 0; j < 19; j++) if (vp56_rac_get_prob_branchy(c, vp8_mv_update_prob[i][j])) s->prob->mvc[i][j] = vp8_rac_get_nn(c); } return 0; }

FFmpeg

4d87001096ff1d4e3ee6f88f8caddbd8ccb2c816

static int load_refcount_block(BlockDriverState *bs, int64_t refcount_block_offset) { BDRVQcowState *s = bs->opaque; int ret; if (cache_refcount_updates) { ret = write_refcount_block(bs); if (ret < 0) { return ret; } } BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_LOAD); ret = bdrv_pread(bs->file, refcount_block_offset, s->refcount_block_cache, s->cluster_size); if (ret < 0) { return ret; } s->refcount_block_cache_offset = refcount_block_offset; return 0; }

qemu

1c02e2a17104fe7fc11893125864dc0daf1e6d5b

void qemu_coroutine_enter(Coroutine *co, void *opaque) { Coroutine *self = qemu_coroutine_self(); CoroutineAction ret; trace_qemu_coroutine_enter(self, co, opaque); if (co->caller) { fprintf(stderr, "Co-routine re-entered recursively\n"); abort(); } co->caller = self; co->entry_arg = opaque; ret = qemu_coroutine_switch(self, co, COROUTINE_ENTER); qemu_co_queue_run_restart(co); switch (ret) { case COROUTINE_YIELD: return; case COROUTINE_TERMINATE: trace_qemu_coroutine_terminate(co); coroutine_delete(co); return; default: abort(); } }

qemu

0b8b8753e4d94901627b3e86431230f2319215c4

static int imc_decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt) { AVFrame *frame = data; const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; int ret, i; IMCContext *q = avctx->priv_data; LOCAL_ALIGNED_16(uint16_t, buf16, [IMC_BLOCK_SIZE / 2]); if (buf_size < IMC_BLOCK_SIZE * avctx->channels) { av_log(avctx, AV_LOG_ERROR, "frame too small!\n"); return AVERROR_INVALIDDATA; } /* get output buffer */ frame->nb_samples = COEFFS; if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) return ret; for (i = 0; i < avctx->channels; i++) { q->out_samples = (float *)frame->extended_data[i]; q->bdsp.bswap16_buf(buf16, (const uint16_t *) buf, IMC_BLOCK_SIZE / 2); init_get_bits(&q->gb, (const uint8_t*)buf16, IMC_BLOCK_SIZE * 8); buf += IMC_BLOCK_SIZE; if ((ret = imc_decode_block(avctx, q, i)) < 0) return ret; } if (avctx->channels == 2) { q->fdsp.butterflies_float((float *)frame->extended_data[0], (float *)frame->extended_data[1], COEFFS); } *got_frame_ptr = 1; return IMC_BLOCK_SIZE * avctx->channels; }

FFmpeg

7444cf9a9c0b8b2bba8198af2823521c654a48f4

int init_vlc(VLC *vlc, int nb_bits, int nb_codes, const void *bits, int bits_wrap, int bits_size, const void *codes, int codes_wrap, int codes_size) { vlc->bits = nb_bits; vlc->table = NULL; vlc->table_allocated = 0; vlc->table_size = 0; #ifdef DEBUG_VLC printf("build table nb_codes=%d\n", nb_codes); #endif if (build_table(vlc, nb_bits, nb_codes, bits, bits_wrap, bits_size, codes, codes_wrap, codes_size, 0, 0) < 0) { av_free(vlc->table); return -1; } return 0; }

FFmpeg

073c2593c9f0aa4445a6fc1b9b24e6e52a8cc2c1

static void filter(AVFilterContext *ctx) { IDETContext *idet = ctx->priv; int y, i; int64_t alpha[2]={0}; int64_t delta=0; Type type, best_type; int match = 0; for (i = 0; i < idet->csp->nb_components; i++) { int w = idet->cur->video->w; int h = idet->cur->video->h; int refs = idet->cur->linesize[i]; if (i && i<3) { w >>= idet->csp->log2_chroma_w; h >>= idet->csp->log2_chroma_h; } for (y = 2; y < h - 2; y++) { uint8_t *prev = &idet->prev->data[i][y*refs]; uint8_t *cur = &idet->cur ->data[i][y*refs]; uint8_t *next = &idet->next->data[i][y*refs]; alpha[ y &1] += idet->filter_line(cur-refs, prev, cur+refs, w); alpha[(y^1)&1] += idet->filter_line(cur-refs, next, cur+refs, w); delta += idet->filter_line(cur-refs, cur, cur+refs, w); } } if (alpha[0] / (float)alpha[1] > idet->interlace_threshold){ type = TFF; }else if(alpha[1] / (float)alpha[0] > idet->interlace_threshold){ type = BFF; }else if(alpha[1] / (float)delta > idet->progressive_threshold){ type = PROGRSSIVE; }else{ type = UNDETERMINED; } memmove(idet->history+1, idet->history, HIST_SIZE-1); idet->history[0] = type; best_type = UNDETERMINED; for(i=0; i<HIST_SIZE; i++){ if(idet->history[i] != UNDETERMINED){ if(best_type == UNDETERMINED) best_type = idet->history[i]; if(idet->history[i] == best_type) { match++; }else{ match=0; break; } } } if(idet->last_type == UNDETERMINED){ if(match ) idet->last_type = best_type; }else{ if(match>2) idet->last_type = best_type; } if (idet->last_type == TFF){ idet->cur->video->top_field_first = 1; idet->cur->video->interlaced = 1; }else if(idet->last_type == BFF){ idet->cur->video->top_field_first = 0; idet->cur->video->interlaced = 1; }else if(idet->last_type == PROGRSSIVE){ idet->cur->video->interlaced = 0; } idet->prestat [ type] ++; idet->poststat[idet->last_type] ++; av_log(ctx, AV_LOG_DEBUG, "Single frame:%s, Multi frame:%s\n", type2str(type), type2str(idet->last_type)); }

FFmpeg

31fdf3065daceb31e12fd26a367445676d761180

static void div64(uint64_t *plow, uint64_t *phigh, uint64_t b) { uint64_t q, r, a1, a0; int i, qb; a0 = *plow; a1 = *phigh; if (a1 == 0) { q = a0 / b; r = a0 % b; *plow = q; *phigh = r; } else { /* XXX: use a better algorithm */ for(i = 0; i < 64; i++) { a1 = (a1 << 1) | (a0 >> 63); if (a1 >= b) { a1 -= b; qb = 1; } else { qb = 0; } a0 = (a0 << 1) | qb; } #if defined(DEBUG_MULDIV) printf("div: 0x%016llx%016llx / 0x%016llx: q=0x%016llx r=0x%016llx\n", *phigh, *plow, b, a0, a1); #endif *plow = a0; *phigh = a1; } }

qemu

45bbbb466cf4a6280076ea5a51f67ef5bedee345

static float get_band_cost_UPAIR12_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]; 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; int sign1, count1, sign2, count2; int *in_int = (int *)&in[i]; float *in_pos = (float *)&in[i]; float di0, di1, di2, di3; int t0, t1, t2, t3, t4; 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 %[t4], $zero, 12 \n\t" "ori %[sign1], $zero, 0 \n\t" "ori %[sign2], $zero, 0 \n\t" "slt %[t0], %[t4], %[qc1] \n\t" "slt %[t1], %[t4], %[qc2] \n\t" "slt %[t2], %[t4], %[qc3] \n\t" "slt %[t3], %[t4], %[qc4] \n\t" "movn %[qc1], %[t4], %[t0] \n\t" "movn %[qc2], %[t4], %[t1] \n\t" "movn %[qc3], %[t4], %[t2] \n\t" "movn %[qc4], %[t4], %[t3] \n\t" "lw %[t0], 0(%[in_int]) \n\t" "lw %[t1], 4(%[in_int]) \n\t" "lw %[t2], 8(%[in_int]) \n\t" "lw %[t3], 12(%[in_int]) \n\t" "slt %[t0], %[t0], $zero \n\t" "movn %[sign1], %[t0], %[qc1] \n\t" "slt %[t2], %[t2], $zero \n\t" "movn %[sign2], %[t2], %[qc3] \n\t" "slt %[t1], %[t1], $zero \n\t" "sll %[t0], %[sign1], 1 \n\t" "or %[t0], %[t0], %[t1] \n\t" "movn %[sign1], %[t0], %[qc2] \n\t" "slt %[t3], %[t3], $zero \n\t" "sll %[t0], %[sign2], 1 \n\t" "or %[t0], %[t0], %[t3] \n\t" "movn %[sign2], %[t0], %[qc4] \n\t" "slt %[count1], $zero, %[qc1] \n\t" "slt %[t1], $zero, %[qc2] \n\t" "slt %[count2], $zero, %[qc3] \n\t" "slt %[t2], $zero, %[qc4] \n\t" "addu %[count1], %[count1], %[t1] \n\t" "addu %[count2], %[count2], %[t2] \n\t" ".set pop \n\t" : [qc1]"+r"(qc1), [qc2]"+r"(qc2), [qc3]"+r"(qc3), [qc4]"+r"(qc4), [sign1]"=&r"(sign1), [count1]"=&r"(count1), [sign2]"=&r"(sign2), [count2]"=&r"(count2), [t0]"=&r"(t0), [t1]"=&r"(t1), [t2]"=&r"(t2), [t3]"=&r"(t3), [t4]"=&r"(t4) : [in_int]"r"(in_int) : "memory" ); curidx = 13 * qc1; curidx += qc2; curidx2 = 13 * qc3; curidx2 += qc4; curbits += p_bits[curidx]; curbits += p_bits[curidx2]; curbits += upair12_sign_bits[curidx]; curbits += upair12_sign_bits[curidx2]; vec = &p_codes[curidx*2]; vec2 = &p_codes[curidx2*2]; __asm__ volatile ( ".set push \n\t" ".set noreorder \n\t" "lwc1 %[di0], 0(%[in_pos]) \n\t" "lwc1 %[di1], 4(%[in_pos]) \n\t" "lwc1 %[di2], 8(%[in_pos]) \n\t" "lwc1 %[di3], 12(%[in_pos]) \n\t" "abs.s %[di0], %[di0] \n\t" "abs.s %[di1], %[di1] \n\t" "abs.s %[di2], %[di2] \n\t" "abs.s %[di3], %[di3] \n\t" "lwc1 $f0, 0(%[vec]) \n\t" "lwc1 $f1, 4(%[vec]) \n\t" "lwc1 $f2, 0(%[vec2]) \n\t" "lwc1 $f3, 4(%[vec2]) \n\t" "nmsub.s %[di0], %[di0], $f0, %[IQ] \n\t" "nmsub.s %[di1], %[di1], $f1, %[IQ] \n\t" "nmsub.s %[di2], %[di2], $f2, %[IQ] \n\t" "nmsub.s %[di3], %[di3], $f3, %[IQ] \n\t" ".set pop \n\t" : [di0]"=&f"(di0), [di1]"=&f"(di1), [di2]"=&f"(di2), [di3]"=&f"(di3) : [in_pos]"r"(in_pos), [vec]"r"(vec), [vec2]"r"(vec2), [IQ]"f"(IQ) : "$f0", "$f1", "$f2", "$f3", "memory" ); cost += di0 * di0 + di1 * di1 + di2 * di2 + di3 * di3; } if (bits) *bits = curbits; return cost * lambda + curbits; }

FFmpeg

01ecb7172b684f1c4b3e748f95c5a9a494ca36ec

static int libopenjpeg_copy_unpacked16(AVCodecContext *avctx, const AVFrame *frame, opj_image_t *image) { int compno; int x; int y; int width; int height; int *image_line; int frame_index; const int numcomps = image->numcomps; uint16_t *frame_ptr; for (compno = 0; compno < numcomps; ++compno) { if (image->comps[compno].w > frame->linesize[compno]) { av_log(avctx, AV_LOG_ERROR, "Error: frame's linesize is too small for the image\n"); return 0; } } for (compno = 0; compno < numcomps; ++compno) { width = avctx->width / image->comps[compno].dx; height = avctx->height / image->comps[compno].dy; frame_ptr = (uint16_t *)frame->data[compno]; for (y = 0; y < height; ++y) { image_line = image->comps[compno].data + y * image->comps[compno].w; frame_index = y * (frame->linesize[compno] / 2); for (x = 0; x < width; ++x) image_line[x] = frame_ptr[frame_index++]; for (; x < image->comps[compno].w; ++x) { image_line[x] = image_line[x - 1]; } } for (; y < image->comps[compno].h; ++y) { image_line = image->comps[compno].data + y * image->comps[compno].w; for (x = 0; x < image->comps[compno].w; ++x) { image_line[x] = image_line[x - image->comps[compno].w]; } } } return 1; }

FFmpeg

56706ac0d5723cb549fec2602e798ab1bf6004cd

inline static void RENAME(hcscale)(uint16_t *dst, int dstWidth, uint8_t *src1, uint8_t *src2, int srcW, int xInc, int flags, int canMMX2BeUsed, int16_t *hChrFilter, int16_t *hChrFilterPos, int hChrFilterSize, void *funnyUVCode, int srcFormat, uint8_t *formatConvBuffer, int16_t *mmx2Filter, int32_t *mmx2FilterPos) { if(srcFormat==IMGFMT_YUY2) { RENAME(yuy2ToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(srcFormat==IMGFMT_UYVY) { RENAME(uyvyToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(srcFormat==IMGFMT_BGR32) { RENAME(bgr32ToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(srcFormat==IMGFMT_BGR24) { RENAME(bgr24ToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(srcFormat==IMGFMT_BGR16) { RENAME(bgr16ToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(srcFormat==IMGFMT_BGR15) { RENAME(bgr15ToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(srcFormat==IMGFMT_RGB32) { RENAME(rgb32ToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(srcFormat==IMGFMT_RGB24) { RENAME(rgb24ToUV)(formatConvBuffer, formatConvBuffer+2048, src1, src2, srcW); src1= formatConvBuffer; src2= formatConvBuffer+2048; } else if(isGray(srcFormat)) { return; } #ifdef HAVE_MMX // use the new MMX scaler if the mmx2 can't be used (its faster than the x86asm one) if(!(flags&SWS_FAST_BILINEAR) || (!canMMX2BeUsed)) #else if(!(flags&SWS_FAST_BILINEAR)) #endif { RENAME(hScale)(dst , dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize); RENAME(hScale)(dst+2048, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize); } else // Fast Bilinear upscale / crap downscale { #if defined(ARCH_X86) || defined(ARCH_X86_64) #ifdef HAVE_MMX2 int i; if(canMMX2BeUsed) { asm volatile( "pxor %%mm7, %%mm7 \n\t" "mov %0, %%"REG_c" \n\t" "mov %1, %%"REG_D" \n\t" "mov %2, %%"REG_d" \n\t" "mov %3, %%"REG_b" \n\t" "xor %%"REG_a", %%"REG_a" \n\t" // i PREFETCH" (%%"REG_c") \n\t" PREFETCH" 32(%%"REG_c") \n\t" PREFETCH" 64(%%"REG_c") \n\t" #ifdef ARCH_X86_64 #define FUNNY_UV_CODE \ "movl (%%"REG_b"), %%esi \n\t"\ "call *%4 \n\t"\ "movl (%%"REG_b", %%"REG_a"), %%esi\n\t"\ "add %%"REG_S", %%"REG_c" \n\t"\ "add %%"REG_a", %%"REG_D" \n\t"\ "xor %%"REG_a", %%"REG_a" \n\t"\ #else #define FUNNY_UV_CODE \ "movl (%%"REG_b"), %%esi \n\t"\ "call *%4 \n\t"\ "addl (%%"REG_b", %%"REG_a"), %%"REG_c"\n\t"\ "add %%"REG_a", %%"REG_D" \n\t"\ "xor %%"REG_a", %%"REG_a" \n\t"\ #endif FUNNY_UV_CODE FUNNY_UV_CODE FUNNY_UV_CODE FUNNY_UV_CODE "xor %%"REG_a", %%"REG_a" \n\t" // i "mov %5, %%"REG_c" \n\t" // src "mov %1, %%"REG_D" \n\t" // buf1 "add $4096, %%"REG_D" \n\t" PREFETCH" (%%"REG_c") \n\t" PREFETCH" 32(%%"REG_c") \n\t" PREFETCH" 64(%%"REG_c") \n\t" FUNNY_UV_CODE FUNNY_UV_CODE FUNNY_UV_CODE FUNNY_UV_CODE :: "m" (src1), "m" (dst), "m" (mmx2Filter), "m" (mmx2FilterPos), "m" (funnyUVCode), "m" (src2) : "%"REG_a, "%"REG_b, "%"REG_c, "%"REG_d, "%"REG_S, "%"REG_D ); for(i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) { // printf("%d %d %d\n", dstWidth, i, srcW); dst[i] = src1[srcW-1]*128; dst[i+2048] = src2[srcW-1]*128; } } else { #endif long xInc_shr16 = (long) (xInc >> 16); int xInc_mask = xInc & 0xffff; asm volatile( "xor %%"REG_a", %%"REG_a" \n\t" // i "xor %%"REG_b", %%"REG_b" \n\t" // xx "xorl %%ecx, %%ecx \n\t" // 2*xalpha ".balign 16 \n\t" "1: \n\t" "mov %0, %%"REG_S" \n\t" "movzbl (%%"REG_S", %%"REG_b"), %%edi \n\t" //src[xx] "movzbl 1(%%"REG_S", %%"REG_b"), %%esi \n\t" //src[xx+1] "subl %%edi, %%esi \n\t" //src[xx+1] - src[xx] "imull %%ecx, %%esi \n\t" //(src[xx+1] - src[xx])*2*xalpha "shll $16, %%edi \n\t" "addl %%edi, %%esi \n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha) "mov %1, %%"REG_D" \n\t" "shrl $9, %%esi \n\t" "movw %%si, (%%"REG_D", %%"REG_a", 2)\n\t" "movzbl (%5, %%"REG_b"), %%edi \n\t" //src[xx] "movzbl 1(%5, %%"REG_b"), %%esi \n\t" //src[xx+1] "subl %%edi, %%esi \n\t" //src[xx+1] - src[xx] "imull %%ecx, %%esi \n\t" //(src[xx+1] - src[xx])*2*xalpha "shll $16, %%edi \n\t" "addl %%edi, %%esi \n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha) "mov %1, %%"REG_D" \n\t" "shrl $9, %%esi \n\t" "movw %%si, 4096(%%"REG_D", %%"REG_a", 2)\n\t" "addw %4, %%cx \n\t" //2*xalpha += xInc&0xFF "adc %3, %%"REG_b" \n\t" //xx+= xInc>>8 + carry "add $1, %%"REG_a" \n\t" "cmp %2, %%"REG_a" \n\t" " jb 1b \n\t" /* GCC-3.3 makes MPlayer crash on IA-32 machines when using "g" operand here, which is needed to support GCC-4.0 */ #if defined(ARCH_X86_64) && ((__GNUC__ > 3) || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4)) :: "m" (src1), "m" (dst), "g" ((long)dstWidth), "m" (xInc_shr16), "m" (xInc_mask), #else :: "m" (src1), "m" (dst), "m" ((long)dstWidth), "m" (xInc_shr16), "m" (xInc_mask), #endif "r" (src2) : "%"REG_a, "%"REG_b, "%ecx", "%"REG_D, "%esi" ); #ifdef HAVE_MMX2 } //if MMX2 can't be used #endif #else int i; unsigned int xpos=0; for(i=0;i<dstWidth;i++) { register unsigned int xx=xpos>>16; register unsigned int xalpha=(xpos&0xFFFF)>>9; dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha); dst[i+2048]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha); /* slower dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha; dst[i+2048]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha; */ xpos+=xInc; } #endif } }

FFmpeg

7f526efd17973ec6d2204f7a47b6923e2be31363

static int tak_read_header(AVFormatContext *s) { TAKDemuxContext *tc = s->priv_data; AVIOContext *pb = s->pb; GetBitContext gb; AVStream *st; uint8_t *buffer = NULL; int ret; st = avformat_new_stream(s, 0); if (!st) return AVERROR(ENOMEM); st->codec->codec_type = AVMEDIA_TYPE_AUDIO; st->codec->codec_id = AV_CODEC_ID_TAK; st->need_parsing = AVSTREAM_PARSE_FULL_RAW; tc->mlast_frame = 0; if (avio_rl32(pb) != MKTAG('t', 'B', 'a', 'K')) { avio_seek(pb, -4, SEEK_CUR); return 0; } while (!url_feof(pb)) { enum TAKMetaDataType type; int size; type = avio_r8(pb) & 0x7f; size = avio_rl24(pb); switch (type) { case TAK_METADATA_STREAMINFO: case TAK_METADATA_LAST_FRAME: case TAK_METADATA_ENCODER: if (size <= 3) return AVERROR_INVALIDDATA; buffer = av_malloc(size - 3 + FF_INPUT_BUFFER_PADDING_SIZE); if (!buffer) return AVERROR(ENOMEM); ffio_init_checksum(pb, tak_check_crc, 0xCE04B7U); if (avio_read(pb, buffer, size - 3) != size - 3) { av_freep(&buffer); return AVERROR(EIO); } if (ffio_get_checksum(s->pb) != avio_rb24(pb)) { av_log(s, AV_LOG_ERROR, "%d metadata block CRC error.\n", type); if (s->error_recognition & AV_EF_EXPLODE) { av_freep(&buffer); return AVERROR_INVALIDDATA; } } init_get_bits8(&gb, buffer, size - 3); break; case TAK_METADATA_MD5: { uint8_t md5[16]; int i; if (size != 19) return AVERROR_INVALIDDATA; ffio_init_checksum(pb, tak_check_crc, 0xCE04B7U); avio_read(pb, md5, 16); if (ffio_get_checksum(s->pb) != avio_rb24(pb)) { av_log(s, AV_LOG_ERROR, "MD5 metadata block CRC error.\n"); if (s->error_recognition & AV_EF_EXPLODE) return AVERROR_INVALIDDATA; } av_log(s, AV_LOG_VERBOSE, "MD5="); for (i = 0; i < 16; i++) av_log(s, AV_LOG_VERBOSE, "%02x", md5[i]); av_log(s, AV_LOG_VERBOSE, "\n"); break; } case TAK_METADATA_END: { int64_t curpos = avio_tell(pb); if (pb->seekable) { ff_ape_parse_tag(s); avio_seek(pb, curpos, SEEK_SET); } tc->data_end += curpos; return 0; } default: ret = avio_skip(pb, size); if (ret < 0) return ret; } if (type == TAK_METADATA_STREAMINFO) { TAKStreamInfo ti; avpriv_tak_parse_streaminfo(&gb, &ti); if (ti.samples > 0) st->duration = ti.samples; st->codec->bits_per_coded_sample = ti.bps; if (ti.ch_layout) st->codec->channel_layout = ti.ch_layout; st->codec->sample_rate = ti.sample_rate; st->codec->channels = ti.channels; st->start_time = 0; avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); st->codec->extradata = buffer; st->codec->extradata_size = size - 3; buffer = NULL; } else if (type == TAK_METADATA_LAST_FRAME) { if (size != 11) return AVERROR_INVALIDDATA; tc->mlast_frame = 1; tc->data_end = get_bits64(&gb, TAK_LAST_FRAME_POS_BITS) + get_bits(&gb, TAK_LAST_FRAME_SIZE_BITS); av_freep(&buffer); } else if (type == TAK_METADATA_ENCODER) { av_log(s, AV_LOG_VERBOSE, "encoder version: %0X\n", get_bits_long(&gb, TAK_ENCODER_VERSION_BITS)); av_freep(&buffer); } } return AVERROR_EOF; }

FFmpeg

243b9fea90aade8cf8197fb8f362ccc03c7f6295

static void cpu_pre_save(void *opaque) { CPUState *env = opaque; int i; cpu_synchronize_state(env); /* FPU */ env->fpus_vmstate = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; env->fptag_vmstate = 0; for(i = 0; i < 8; i++) { env->fptag_vmstate |= ((!env->fptags[i]) << i); } #ifdef USE_X86LDOUBLE env->fpregs_format_vmstate = 0; #else env->fpregs_format_vmstate = 1; #endif }

qemu

ea375f9ab8c76686dca0af8cb4f87a4eb569cad3

static uint64_t ich_elrsr_read(CPUARMState *env, const ARMCPRegInfo *ri) { GICv3CPUState *cs = icc_cs_from_env(env); uint64_t value = 0; int i; for (i = 0; i < cs->num_list_regs; i++) { uint64_t lr = cs->ich_lr_el2[i]; if ((lr & ICH_LR_EL2_STATE_MASK) == 0 && ((lr & ICH_LR_EL2_HW) == 1 || (lr & ICH_LR_EL2_EOI) == 0)) { value |= (1 << i); } } trace_gicv3_ich_elrsr_read(gicv3_redist_affid(cs), value); return value; }

qemu

d87576e38df760ef1cb635197d51f207e2a8eda9

static int mp_user_removexattr(FsContext *ctx, const char *path, const char *name) { char *buffer; int ret; if (strncmp(name, "user.virtfs.", 12) == 0) { /* * Don't allow fetch of user.virtfs namesapce * in case of mapped security */ errno = EACCES; return -1; } buffer = rpath(ctx, path); ret = lremovexattr(buffer, name); g_free(buffer); return ret; }

qemu

72f0d0bf51362011c4d841a89fb8f5cfb16e0bf3

static int decode_subframe_fixed(FLACContext *s, int channel, int pred_order) { int i; av_log(s->avctx, AV_LOG_DEBUG, " SUBFRAME FIXED\n"); /* warm up samples */ av_log(s->avctx, AV_LOG_DEBUG, " warm up samples: %d\n", pred_order); for (i = 0; i < pred_order; i++) { s->decoded[channel][i] = get_sbits(&s->gb, s->curr_bps); // av_log(s->avctx, AV_LOG_DEBUG, " %d: %d\n", i, s->decoded[channel][i]); } if (decode_residuals(s, channel, pred_order) < 0) return -1; switch(pred_order) { case 0: break; case 1: for (i = pred_order; i < s->blocksize; i++) s->decoded[channel][i] += s->decoded[channel][i-1]; break; case 2: for (i = pred_order; i < s->blocksize; i++) s->decoded[channel][i] += 2*s->decoded[channel][i-1] - s->decoded[channel][i-2]; break; case 3: for (i = pred_order; i < s->blocksize; i++) s->decoded[channel][i] += 3*s->decoded[channel][i-1] - 3*s->decoded[channel][i-2] + s->decoded[channel][i-3]; break; case 4: for (i = pred_order; i < s->blocksize; i++) s->decoded[channel][i] += 4*s->decoded[channel][i-1] - 6*s->decoded[channel][i-2] + 4*s->decoded[channel][i-3] - s->decoded[channel][i-4]; break; default: av_log(s->avctx, AV_LOG_ERROR, "illegal pred order %d\n", pred_order); return -1; } return 0; }

FFmpeg

9d656110966fbdde0fd1d2e685f3ed3633ba3596

static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr) { AACEncContext *s = avctx->priv_data; float **samples = s->planar_samples, *samples2, *la, *overlap; ChannelElement *cpe; SingleChannelElement *sce; IndividualChannelStream *ics; int i, its, ch, w, chans, tag, start_ch, ret, frame_bits; int target_bits, rate_bits, too_many_bits, too_few_bits; int ms_mode = 0, is_mode = 0, tns_mode = 0, pred_mode = 0; int chan_el_counter[4]; FFPsyWindowInfo windows[AAC_MAX_CHANNELS]; if (s->last_frame == 2) return 0; /* add current frame to queue */ if (frame) { if ((ret = ff_af_queue_add(&s->afq, frame)) < 0) return ret; } copy_input_samples(s, frame); if (s->psypp) ff_psy_preprocess(s->psypp, s->planar_samples, s->channels); if (!avctx->frame_number) return 0; start_ch = 0; for (i = 0; i < s->chan_map[0]; i++) { FFPsyWindowInfo* wi = windows + start_ch; tag = s->chan_map[i+1]; chans = tag == TYPE_CPE ? 2 : 1; cpe = &s->cpe[i]; for (ch = 0; ch < chans; ch++) { float clip_avoidance_factor; sce = &cpe->ch[ch]; ics = &sce->ics; s->cur_channel = start_ch + ch; overlap = &samples[s->cur_channel][0]; samples2 = overlap + 1024; la = samples2 + (448+64); if (!frame) la = NULL; if (tag == TYPE_LFE) { wi[ch].window_type[0] = ONLY_LONG_SEQUENCE; wi[ch].window_shape = 0; wi[ch].num_windows = 1; wi[ch].grouping[0] = 1; /* Only the lowest 12 coefficients are used in a LFE channel. * The expression below results in only the bottom 8 coefficients * being used for 11.025kHz to 16kHz sample rates. */ ics->num_swb = s->samplerate_index >= 8 ? 1 : 3; } else { wi[ch] = s->psy.model->window(&s->psy, samples2, la, s->cur_channel, ics->window_sequence[0]); } ics->window_sequence[1] = ics->window_sequence[0]; ics->window_sequence[0] = wi[ch].window_type[0]; ics->use_kb_window[1] = ics->use_kb_window[0]; ics->use_kb_window[0] = wi[ch].window_shape; ics->num_windows = wi[ch].num_windows; ics->swb_sizes = s->psy.bands [ics->num_windows == 8]; ics->num_swb = tag == TYPE_LFE ? ics->num_swb : s->psy.num_bands[ics->num_windows == 8]; ics->max_sfb = FFMIN(ics->max_sfb, ics->num_swb); ics->swb_offset = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ? ff_swb_offset_128 [s->samplerate_index]: ff_swb_offset_1024[s->samplerate_index]; ics->tns_max_bands = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ? ff_tns_max_bands_128 [s->samplerate_index]: ff_tns_max_bands_1024[s->samplerate_index]; clip_avoidance_factor = 0.0f; for (w = 0; w < ics->num_windows; w++) ics->group_len[w] = wi[ch].grouping[w]; for (w = 0; w < ics->num_windows; w++) { if (wi[ch].clipping[w] > CLIP_AVOIDANCE_FACTOR) { ics->window_clipping[w] = 1; clip_avoidance_factor = FFMAX(clip_avoidance_factor, wi[ch].clipping[w]); } else { ics->window_clipping[w] = 0; } } if (clip_avoidance_factor > CLIP_AVOIDANCE_FACTOR) { ics->clip_avoidance_factor = CLIP_AVOIDANCE_FACTOR / clip_avoidance_factor; } else { ics->clip_avoidance_factor = 1.0f; } apply_window_and_mdct(s, sce, overlap); if (s->options.ltp && s->coder->update_ltp) { s->coder->update_ltp(s, sce); apply_window[sce->ics.window_sequence[0]](s->fdsp, sce, &sce->ltp_state[0]); s->mdct1024.mdct_calc(&s->mdct1024, sce->lcoeffs, sce->ret_buf); } if (isnan(cpe->ch->coeffs[0])) { av_log(avctx, AV_LOG_ERROR, "Input contains NaN\n"); return AVERROR(EINVAL); } avoid_clipping(s, sce); } start_ch += chans; } if ((ret = ff_alloc_packet2(avctx, avpkt, 8192 * s->channels, 0)) < 0) return ret; frame_bits = its = 0; do { init_put_bits(&s->pb, avpkt->data, avpkt->size); if ((avctx->frame_number & 0xFF)==1 && !(avctx->flags & AV_CODEC_FLAG_BITEXACT)) put_bitstream_info(s, LIBAVCODEC_IDENT); start_ch = 0; target_bits = 0; memset(chan_el_counter, 0, sizeof(chan_el_counter)); for (i = 0; i < s->chan_map[0]; i++) { FFPsyWindowInfo* wi = windows + start_ch; const float *coeffs[2]; tag = s->chan_map[i+1]; chans = tag == TYPE_CPE ? 2 : 1; cpe = &s->cpe[i]; cpe->common_window = 0; memset(cpe->is_mask, 0, sizeof(cpe->is_mask)); memset(cpe->ms_mask, 0, sizeof(cpe->ms_mask)); put_bits(&s->pb, 3, tag); put_bits(&s->pb, 4, chan_el_counter[tag]++); for (ch = 0; ch < chans; ch++) { sce = &cpe->ch[ch]; coeffs[ch] = sce->coeffs; sce->ics.predictor_present = 0; sce->ics.ltp.present = 0; memset(sce->ics.ltp.used, 0, sizeof(sce->ics.ltp.used)); memset(sce->ics.prediction_used, 0, sizeof(sce->ics.prediction_used)); memset(&sce->tns, 0, sizeof(TemporalNoiseShaping)); for (w = 0; w < 128; w++) if (sce->band_type[w] > RESERVED_BT) sce->band_type[w] = 0; } s->psy.bitres.alloc = -1; s->psy.bitres.bits = s->last_frame_pb_count / s->channels; s->psy.model->analyze(&s->psy, start_ch, coeffs, wi); if (s->psy.bitres.alloc > 0) { /* Lambda unused here on purpose, we need to take psy's unscaled allocation */ target_bits += s->psy.bitres.alloc * (s->lambda / (avctx->global_quality ? avctx->global_quality : 120)); s->psy.bitres.alloc /= chans; } s->cur_type = tag; for (ch = 0; ch < chans; ch++) { s->cur_channel = start_ch + ch; if (s->options.pns && s->coder->mark_pns) s->coder->mark_pns(s, avctx, &cpe->ch[ch]); s->coder->search_for_quantizers(avctx, s, &cpe->ch[ch], s->lambda); } if (chans > 1 && wi[0].window_type[0] == wi[1].window_type[0] && wi[0].window_shape == wi[1].window_shape) { cpe->common_window = 1; for (w = 0; w < wi[0].num_windows; w++) { if (wi[0].grouping[w] != wi[1].grouping[w]) { cpe->common_window = 0; break; } } } for (ch = 0; ch < chans; ch++) { /* TNS and PNS */ sce = &cpe->ch[ch]; s->cur_channel = start_ch + ch; if (s->options.tns && s->coder->search_for_tns) s->coder->search_for_tns(s, sce); if (s->options.tns && s->coder->apply_tns_filt) s->coder->apply_tns_filt(s, sce); if (sce->tns.present) tns_mode = 1; if (s->options.pns && s->coder->search_for_pns) s->coder->search_for_pns(s, avctx, sce); } s->cur_channel = start_ch; if (s->options.intensity_stereo) { /* Intensity Stereo */ if (s->coder->search_for_is) s->coder->search_for_is(s, avctx, cpe); if (cpe->is_mode) is_mode = 1; apply_intensity_stereo(cpe); } if (s->options.pred) { /* Prediction */ for (ch = 0; ch < chans; ch++) { sce = &cpe->ch[ch]; s->cur_channel = start_ch + ch; if (s->options.pred && s->coder->search_for_pred) s->coder->search_for_pred(s, sce); if (cpe->ch[ch].ics.predictor_present) pred_mode = 1; } if (s->coder->adjust_common_pred) s->coder->adjust_common_pred(s, cpe); for (ch = 0; ch < chans; ch++) { sce = &cpe->ch[ch]; s->cur_channel = start_ch + ch; if (s->options.pred && s->coder->apply_main_pred) s->coder->apply_main_pred(s, sce); } s->cur_channel = start_ch; } if (s->options.mid_side) { /* Mid/Side stereo */ if (s->options.mid_side == -1 && s->coder->search_for_ms) s->coder->search_for_ms(s, cpe); else if (cpe->common_window) memset(cpe->ms_mask, 1, sizeof(cpe->ms_mask)); apply_mid_side_stereo(cpe); } adjust_frame_information(cpe, chans); if (s->options.ltp) { /* LTP */ for (ch = 0; ch < chans; ch++) { sce = &cpe->ch[ch]; s->cur_channel = start_ch + ch; if (s->coder->search_for_ltp) s->coder->search_for_ltp(s, sce, cpe->common_window); if (sce->ics.ltp.present) pred_mode = 1; } s->cur_channel = start_ch; if (s->coder->adjust_common_ltp) s->coder->adjust_common_ltp(s, cpe); } if (chans == 2) { put_bits(&s->pb, 1, cpe->common_window); if (cpe->common_window) { put_ics_info(s, &cpe->ch[0].ics); if (s->coder->encode_main_pred) s->coder->encode_main_pred(s, &cpe->ch[0]); if (s->coder->encode_ltp_info) s->coder->encode_ltp_info(s, &cpe->ch[0], 1); encode_ms_info(&s->pb, cpe); if (cpe->ms_mode) ms_mode = 1; } } for (ch = 0; ch < chans; ch++) { s->cur_channel = start_ch + ch; encode_individual_channel(avctx, s, &cpe->ch[ch], cpe->common_window); } start_ch += chans; } if (avctx->flags & CODEC_FLAG_QSCALE) { /* When using a constant Q-scale, don't mess with lambda */ break; } /* rate control stuff * allow between the nominal bitrate, and what psy's bit reservoir says to target * but drift towards the nominal bitrate always */ frame_bits = put_bits_count(&s->pb); rate_bits = avctx->bit_rate * 1024 / avctx->sample_rate; rate_bits = FFMIN(rate_bits, 6144 * s->channels - 3); too_many_bits = FFMAX(target_bits, rate_bits); too_many_bits = FFMIN(too_many_bits, 6144 * s->channels - 3); too_few_bits = FFMIN(FFMAX(rate_bits - rate_bits/4, target_bits), too_many_bits); /* When using ABR, be strict (but only for increasing) */ too_few_bits = too_few_bits - too_few_bits/8; too_many_bits = too_many_bits + too_many_bits/2; if ( its == 0 /* for steady-state Q-scale tracking */ || (its < 5 && (frame_bits < too_few_bits || frame_bits > too_many_bits)) || frame_bits >= 6144 * s->channels - 3 ) { float ratio = ((float)rate_bits) / frame_bits; if (frame_bits >= too_few_bits && frame_bits <= too_many_bits) { /* * This path is for steady-state Q-scale tracking * When frame bits fall within the stable range, we still need to adjust * lambda to maintain it like so in a stable fashion (large jumps in lambda * create artifacts and should be avoided), but slowly */ ratio = sqrtf(sqrtf(ratio)); ratio = av_clipf(ratio, 0.9f, 1.1f); } else { /* Not so fast though */ ratio = sqrtf(ratio); } s->lambda = FFMIN(s->lambda * ratio, 65536.f); /* Keep iterating if we must reduce and lambda is in the sky */ if (ratio > 0.9f && ratio < 1.1f) { break; } else { if (is_mode || ms_mode || tns_mode || pred_mode) { for (i = 0; i < s->chan_map[0]; i++) { // Must restore coeffs chans = tag == TYPE_CPE ? 2 : 1; cpe = &s->cpe[i]; for (ch = 0; ch < chans; ch++) memcpy(cpe->ch[ch].coeffs, cpe->ch[ch].pcoeffs, sizeof(cpe->ch[ch].coeffs)); } } its++; } } else { break; } } while (1); if (s->options.ltp && s->coder->ltp_insert_new_frame) s->coder->ltp_insert_new_frame(s); put_bits(&s->pb, 3, TYPE_END); flush_put_bits(&s->pb); s->last_frame_pb_count = put_bits_count(&s->pb); s->lambda_sum += s->lambda; s->lambda_count++; if (!frame) s->last_frame++; ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts, &avpkt->duration); avpkt->size = put_bits_count(&s->pb) >> 3; *got_packet_ptr = 1; return 0; }

FFmpeg

0634c5425306547e593bedbbbd2d982d7f0a27cf

void virtio_config_writel(VirtIODevice *vdev, uint32_t addr, uint32_t data) { VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); uint32_t val = data; if (addr > (vdev->config_len - sizeof(val))) return; stl_p(vdev->config + addr, val); if (k->set_config) { k->set_config(vdev, vdev->config); } }

qemu

5f5a1318653c08e435cfa52f60b6a712815b659d

int bdrv_open_image(BlockDriverState **pbs, const char *filename, QDict *options, const char *bdref_key, int flags, bool allow_none, Error **errp) { QDict *image_options; int ret; char *bdref_key_dot; const char *reference; assert(pbs); assert(*pbs == NULL); bdref_key_dot = g_strdup_printf("%s.", bdref_key); qdict_extract_subqdict(options, &image_options, bdref_key_dot); g_free(bdref_key_dot); reference = qdict_get_try_str(options, bdref_key); if (!filename && !reference && !qdict_size(image_options)) { if (allow_none) { ret = 0; } else { error_setg(errp, "A block device must be specified for \"%s\"", bdref_key); ret = -EINVAL; } goto done; } ret = bdrv_open(pbs, filename, reference, image_options, flags, NULL, errp); done: qdict_del(options, bdref_key); return ret; }

qemu

b20e61e0d52eef57cf5db55087b16e0b5207e730

static void musb_packet(MUSBState *s, MUSBEndPoint *ep, int epnum, int pid, int len, USBCallback cb, int dir) { int ret; int idx = epnum && dir; int ttype; /* ep->type[0,1] contains: * in bits 7:6 the speed (0 - invalid, 1 - high, 2 - full, 3 - slow) * in bits 5:4 the transfer type (BULK / INT) * in bits 3:0 the EP num */ ttype = epnum ? (ep->type[idx] >> 4) & 3 : 0; ep->timeout[dir] = musb_timeout(ttype, ep->type[idx] >> 6, ep->interval[idx]); ep->interrupt[dir] = ttype == USB_ENDPOINT_XFER_INT; ep->delayed_cb[dir] = cb; ep->packey[dir].p.pid = pid; /* A wild guess on the FADDR semantics... */ ep->packey[dir].p.devaddr = ep->faddr[idx]; ep->packey[dir].p.devep = ep->type[idx] & 0xf; ep->packey[dir].p.data = (void *) ep->buf[idx]; ep->packey[dir].p.len = len; ep->packey[dir].ep = ep; ep->packey[dir].dir = dir; if (s->port.dev) ret = usb_handle_packet(s->port.dev, &ep->packey[dir].p); else ret = USB_RET_NODEV; if (ret == USB_RET_ASYNC) { ep->status[dir] = len; return; } ep->status[dir] = ret; musb_schedule_cb(&s->port, &ep->packey[dir].p); }

qemu

4f4321c11ff6e98583846bfd6f0e81954924b003

bool st_set_trace_file(const char *file) { st_set_trace_file_enabled(false); free(trace_file_name); if (!file) { if (asprintf(&trace_file_name, CONFIG_TRACE_FILE, getpid()) < 0) { trace_file_name = NULL; return false; } } else { if (asprintf(&trace_file_name, "%s", file) < 0) { trace_file_name = NULL; return false; } } st_set_trace_file_enabled(true); return true; }

qemu

0b5538c300a56c3cfb33022840fe0b4968147e7a

static int kvm_client_migration_log(struct CPUPhysMemoryClient *client, int enable) { return kvm_set_migration_log(enable); }

qemu

a01672d3968cf91208666d371784110bfde9d4f8

static AVFilterContext *parse_filter(const char **buf, AVFilterGraph *graph, int index, AVClass *log_ctx) { char *opts = NULL; char *name = consume_string(buf); if(**buf == '=') { (*buf)++; opts = consume_string(buf); } return create_filter(graph, index, name, opts, log_ctx); }

FFmpeg

64b164f44abc232dbb125b36e2d00b54e1531ba7

static AVCodec *AVCodecInitialize(enum AVCodecID codec_id) { AVCodec *res; avcodec_register_all(); av_log_set_level(AV_LOG_PANIC); res = avcodec_find_decoder(codec_id); if (!res) error("Failed to find decoder"); return res; }

FFmpeg

dec2fa8cc7089605d1d934d65dd2709cfe8aece2

static int poll_rest(gboolean poll_msgs, HANDLE *handles, gint nhandles, GPollFD *fds, guint nfds, gint timeout) { DWORD ready; GPollFD *f; int recursed_result; if (poll_msgs) { /* Wait for either messages or handles * -> Use MsgWaitForMultipleObjectsEx */ ready = MsgWaitForMultipleObjectsEx(nhandles, handles, timeout, QS_ALLINPUT, MWMO_ALERTABLE); if (ready == WAIT_FAILED) { gchar *emsg = g_win32_error_message(GetLastError()); g_warning("MsgWaitForMultipleObjectsEx failed: %s", emsg); g_free(emsg); } } else if (nhandles == 0) { /* No handles to wait for, just the timeout */ if (timeout == INFINITE) { ready = WAIT_FAILED; } else { SleepEx(timeout, TRUE); ready = WAIT_TIMEOUT; } } else { /* Wait for just handles * -> Use WaitForMultipleObjectsEx */ ready = WaitForMultipleObjectsEx(nhandles, handles, FALSE, timeout, TRUE); if (ready == WAIT_FAILED) { gchar *emsg = g_win32_error_message(GetLastError()); g_warning("WaitForMultipleObjectsEx failed: %s", emsg); g_free(emsg); } } if (ready == WAIT_FAILED) { return -1; } else if (ready == WAIT_TIMEOUT || ready == WAIT_IO_COMPLETION) { return 0; } else if (poll_msgs && ready == WAIT_OBJECT_0 + nhandles) { for (f = fds; f < &fds[nfds]; ++f) { if (f->fd == G_WIN32_MSG_HANDLE && f->events & G_IO_IN) { f->revents |= G_IO_IN; } } /* If we have a timeout, or no handles to poll, be satisfied * with just noticing we have messages waiting. */ if (timeout != 0 || nhandles == 0) { return 1; } /* If no timeout and handles to poll, recurse to poll them, * too. */ recursed_result = poll_rest(FALSE, handles, nhandles, fds, nfds, 0); return (recursed_result == -1) ? -1 : 1 + recursed_result; } else if (/* QEMU: removed the following unneeded statement which causes * a compiler warning: ready >= WAIT_OBJECT_0 && */ ready < WAIT_OBJECT_0 + nhandles) { for (f = fds; f < &fds[nfds]; ++f) { if ((HANDLE) f->fd == handles[ready - WAIT_OBJECT_0]) { f->revents = f->events; } } /* If no timeout and polling several handles, recurse to poll * the rest of them. */ if (timeout == 0 && nhandles > 1) { /* Remove the handle that fired */ int i; if (ready < nhandles - 1) { for (i = ready - WAIT_OBJECT_0 + 1; i < nhandles; i++) { handles[i-1] = handles[i]; } } nhandles--; recursed_result = poll_rest(FALSE, handles, nhandles, fds, nfds, 0); return (recursed_result == -1) ? -1 : 1 + recursed_result; } return 1; } return 0; }

qemu

0ec7b534821c8b287317f97cd98ee3f908bd3839

int kvm_arch_pre_run(CPUState *env, struct kvm_run *run) { /* Inject NMI */ if (env->interrupt_request & CPU_INTERRUPT_NMI) { env->interrupt_request &= ~CPU_INTERRUPT_NMI; DPRINTF("injected NMI\n"); kvm_vcpu_ioctl(env, KVM_NMI); } if (!kvm_irqchip_in_kernel()) { /* Force the VCPU out of its inner loop to process the INIT request */ if (env->interrupt_request & CPU_INTERRUPT_INIT) { env->exit_request = 1; } /* Try to inject an interrupt if the guest can accept it */ if (run->ready_for_interrupt_injection && (env->interrupt_request & CPU_INTERRUPT_HARD) && (env->eflags & IF_MASK)) { int irq; env->interrupt_request &= ~CPU_INTERRUPT_HARD; irq = cpu_get_pic_interrupt(env); if (irq >= 0) { struct kvm_interrupt intr; intr.irq = irq; /* FIXME: errors */ DPRINTF("injected interrupt %d\n", irq); kvm_vcpu_ioctl(env, KVM_INTERRUPT, &intr); } } /* If we have an interrupt but the guest is not ready to receive an * interrupt, request an interrupt window exit. This will * cause a return to userspace as soon as the guest is ready to * receive interrupts. */ if ((env->interrupt_request & CPU_INTERRUPT_HARD)) { run->request_interrupt_window = 1; } else { run->request_interrupt_window = 0; } DPRINTF("setting tpr\n"); run->cr8 = cpu_get_apic_tpr(env->apic_state); } return 0; }

qemu

7a39fe588251ba042c91bf23d53b0ba820bf964c

static void gen_msync(DisasContext *ctx) { /* interpreted as no-op */ }

qemu

dcb2b9e1003a9179650b44c747faa4e5767ce92b

static void nvram_writeb (void *opaque, target_phys_addr_t addr, uint32_t value) { M48t59State *NVRAM = opaque; m48t59_write(NVRAM, addr, value & 0xff); }

qemu

a8170e5e97ad17ca169c64ba87ae2f53850dab4c

static int json_lexer_feed_char(JSONLexer *lexer, char ch, bool flush) { int char_consumed, new_state; lexer->x++; if (ch == '\n') { lexer->x = 0; lexer->y++; } do { new_state = json_lexer[lexer->state][(uint8_t)ch]; char_consumed = !TERMINAL_NEEDED_LOOKAHEAD(lexer->state, new_state); if (char_consumed) { qstring_append_chr(lexer->token, ch); } switch (new_state) { case JSON_OPERATOR: case JSON_ESCAPE: case JSON_INTEGER: case JSON_FLOAT: case JSON_KEYWORD: case JSON_STRING: lexer->emit(lexer, lexer->token, new_state, lexer->x, lexer->y); case JSON_SKIP: QDECREF(lexer->token); lexer->token = qstring_new(); new_state = IN_START; break; case IN_ERROR: QDECREF(lexer->token); lexer->token = qstring_new(); new_state = IN_START; return -EINVAL; default: break; } lexer->state = new_state; } while (!char_consumed && !flush); /* Do not let a single token grow to an arbitrarily large size, * this is a security consideration. */ if (lexer->token->length > MAX_TOKEN_SIZE) { lexer->emit(lexer, lexer->token, lexer->state, lexer->x, lexer->y); QDECREF(lexer->token); lexer->token = qstring_new(); lexer->state = IN_START; } return 0; }

qemu

b011f61931f0113b29b7cd7e921dd022e0b04834

static int coroutine_fn qed_aio_write_alloc(QEDAIOCB *acb, size_t len) { BDRVQEDState *s = acb_to_s(acb); int ret; /* Cancel timer when the first allocating request comes in */ if (s->allocating_acb == NULL) { qed_cancel_need_check_timer(s); } /* Freeze this request if another allocating write is in progress */ if (s->allocating_acb != acb || s->allocating_write_reqs_plugged) { if (s->allocating_acb != NULL) { qemu_co_queue_wait(&s->allocating_write_reqs, NULL); assert(s->allocating_acb == NULL); } s->allocating_acb = acb; return -EAGAIN; /* start over with looking up table entries */ } acb->cur_nclusters = qed_bytes_to_clusters(s, qed_offset_into_cluster(s, acb->cur_pos) + len); qemu_iovec_concat(&acb->cur_qiov, acb->qiov, acb->qiov_offset, len); if (acb->flags & QED_AIOCB_ZERO) { /* Skip ahead if the clusters are already zero */ if (acb->find_cluster_ret == QED_CLUSTER_ZERO) { return 0; } acb->cur_cluster = 1; } else { acb->cur_cluster = qed_alloc_clusters(s, acb->cur_nclusters); } if (qed_should_set_need_check(s)) { s->header.features |= QED_F_NEED_CHECK; ret = qed_write_header(s); if (ret < 0) { return ret; } } if (!(acb->flags & QED_AIOCB_ZERO)) { ret = qed_aio_write_cow(acb); if (ret < 0) { return ret; } } return qed_aio_write_l2_update(acb, acb->cur_cluster); }

qemu

1f01e50b8330c24714ddca5841fdbb703076b121

int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info) { BDRVQcow2State *s = bs->opaque; QCowSnapshot *new_snapshot_list = NULL; QCowSnapshot *old_snapshot_list = NULL; QCowSnapshot sn1, *sn = &sn1; int i, ret; uint64_t *l1_table = NULL; int64_t l1_table_offset; if (s->nb_snapshots >= QCOW_MAX_SNAPSHOTS) { return -EFBIG; } memset(sn, 0, sizeof(*sn)); /* Generate an ID */ find_new_snapshot_id(bs, sn_info->id_str, sizeof(sn_info->id_str)); /* Check that the ID is unique */ if (find_snapshot_by_id_and_name(bs, sn_info->id_str, NULL) >= 0) { return -EEXIST; } /* Populate sn with passed data */ sn->id_str = g_strdup(sn_info->id_str); sn->name = g_strdup(sn_info->name); sn->disk_size = bs->total_sectors * BDRV_SECTOR_SIZE; sn->vm_state_size = sn_info->vm_state_size; sn->date_sec = sn_info->date_sec; sn->date_nsec = sn_info->date_nsec; sn->vm_clock_nsec = sn_info->vm_clock_nsec; /* Allocate the L1 table of the snapshot and copy the current one there. */ l1_table_offset = qcow2_alloc_clusters(bs, s->l1_size * sizeof(uint64_t)); if (l1_table_offset < 0) { ret = l1_table_offset; goto fail; } sn->l1_table_offset = l1_table_offset; sn->l1_size = s->l1_size; l1_table = g_try_new(uint64_t, s->l1_size); if (s->l1_size && l1_table == NULL) { ret = -ENOMEM; goto fail; } for(i = 0; i < s->l1_size; i++) { l1_table[i] = cpu_to_be64(s->l1_table[i]); } ret = qcow2_pre_write_overlap_check(bs, 0, sn->l1_table_offset, s->l1_size * sizeof(uint64_t)); if (ret < 0) { goto fail; } ret = bdrv_pwrite(bs->file, sn->l1_table_offset, l1_table, s->l1_size * sizeof(uint64_t)); if (ret < 0) { goto fail; } g_free(l1_table); l1_table = NULL; /* * Increase the refcounts of all clusters and make sure everything is * stable on disk before updating the snapshot table to contain a pointer * to the new L1 table. */ ret = qcow2_update_snapshot_refcount(bs, s->l1_table_offset, s->l1_size, 1); if (ret < 0) { goto fail; } /* Append the new snapshot to the snapshot list */ new_snapshot_list = g_new(QCowSnapshot, s->nb_snapshots + 1); if (s->snapshots) { memcpy(new_snapshot_list, s->snapshots, s->nb_snapshots * sizeof(QCowSnapshot)); old_snapshot_list = s->snapshots; } s->snapshots = new_snapshot_list; s->snapshots[s->nb_snapshots++] = *sn; ret = qcow2_write_snapshots(bs); if (ret < 0) { g_free(s->snapshots); s->snapshots = old_snapshot_list; s->nb_snapshots--; goto fail; } g_free(old_snapshot_list); /* The VM state isn't needed any more in the active L1 table; in fact, it * hurts by causing expensive COW for the next snapshot. */ qcow2_discard_clusters(bs, qcow2_vm_state_offset(s), align_offset(sn->vm_state_size, s->cluster_size) >> BDRV_SECTOR_BITS, QCOW2_DISCARD_NEVER, false); #ifdef DEBUG_ALLOC { BdrvCheckResult result = {0}; qcow2_check_refcounts(bs, &result, 0); } #endif return 0; fail: g_free(sn->id_str); g_free(sn->name); g_free(l1_table); return ret; }

qemu

d2cb36af2b0040d421b347e6e4e803e07220f78d

static void superio_ioport_writeb(void *opaque, uint32_t addr, uint32_t data) { int can_write; SuperIOConfig *superio_conf = opaque; DPRINTF("superio_ioport_writeb address 0x%x val 0x%x \n", addr, data); if (addr == 0x3f0) { superio_conf->index = data & 0xff; } else { /* 0x3f1 */ switch (superio_conf->index) { case 0x00 ... 0xdf: case 0xe4: case 0xe5: case 0xe9 ... 0xed: case 0xf3: case 0xf5: case 0xf7: case 0xf9 ... 0xfb: case 0xfd ... 0xff: can_write = 0; break; default: can_write = 1; if (can_write) { switch (superio_conf->index) { case 0xe7: if ((data & 0xff) != 0xfe) { DPRINTF("chage uart 1 base. unsupported yet \n"); } break; case 0xe8: if ((data & 0xff) != 0xbe) { DPRINTF("chage uart 2 base. unsupported yet \n"); } break; default: superio_conf->config[superio_conf->index] = data & 0xff; } } } superio_conf->config[superio_conf->index] = data & 0xff; } }

qemu

b2bedb214469af55179d907a60cd67fed6b0779e

static void monitor_handle_command1(void *opaque, const char *cmdline) { monitor_handle_command(cmdline); if (!monitor_suspended) monitor_start_input(); else monitor_suspended = 2; }

qemu

bb5fc20f7c1c65e95030da3629dd0d7a0cce38cd

static void do_pci_unregister_device(PCIDevice *pci_dev) { pci_dev->bus->devices[pci_dev->devfn] = NULL; pci_config_free(pci_dev); if (memory_region_is_mapped(&pci_dev->bus_master_enable_region)) { memory_region_del_subregion(&pci_dev->bus_master_container_region, &pci_dev->bus_master_enable_region); } address_space_destroy(&pci_dev->bus_master_as); }

qemu

fd56e0612b6454a282fa6a953fdb09281a98c589

CPUState *ppc405cr_init (target_phys_addr_t ram_bases[4], target_phys_addr_t ram_sizes[4], uint32_t sysclk, qemu_irq **picp, int do_init) { clk_setup_t clk_setup[PPC405CR_CLK_NB]; qemu_irq dma_irqs[4]; CPUState *env; qemu_irq *pic, *irqs; memset(clk_setup, 0, sizeof(clk_setup)); env = ppc4xx_init("405cr", &clk_setup[PPC405CR_CPU_CLK], &clk_setup[PPC405CR_TMR_CLK], sysclk); /* Memory mapped devices registers */ /* PLB arbitrer */ ppc4xx_plb_init(env); /* PLB to OPB bridge */ ppc4xx_pob_init(env); /* OBP arbitrer */ ppc4xx_opba_init(0xef600600); /* Universal interrupt controller */ irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB); irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT]; irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT]; pic = ppcuic_init(env, irqs, 0x0C0, 0, 1); *picp = pic; /* SDRAM controller */ ppc4xx_sdram_init(env, pic[14], 1, ram_bases, ram_sizes, do_init); /* External bus controller */ ppc405_ebc_init(env); /* DMA controller */ dma_irqs[0] = pic[26]; dma_irqs[1] = pic[25]; dma_irqs[2] = pic[24]; dma_irqs[3] = pic[23]; ppc405_dma_init(env, dma_irqs); /* Serial ports */ if (serial_hds[0] != NULL) { serial_mm_init(0xef600300, 0, pic[0], PPC_SERIAL_MM_BAUDBASE, serial_hds[0], 1, 1); } if (serial_hds[1] != NULL) { serial_mm_init(0xef600400, 0, pic[1], PPC_SERIAL_MM_BAUDBASE, serial_hds[1], 1, 1); } /* IIC controller */ ppc405_i2c_init(0xef600500, pic[2]); /* GPIO */ ppc405_gpio_init(0xef600700); /* CPU control */ ppc405cr_cpc_init(env, clk_setup, sysclk); return env; }

qemu

b6dcbe086c77ec683f5ff0b693593cda1d61f3a1

int nbd_client_session_co_discard(NbdClientSession *client, int64_t sector_num, int nb_sectors) { struct nbd_request request = { .type = NBD_CMD_TRIM }; struct nbd_reply reply; ssize_t ret; if (!(client->nbdflags & NBD_FLAG_SEND_TRIM)) { return 0; } request.from = sector_num * 512; request.len = nb_sectors * 512; nbd_coroutine_start(client, &request); ret = nbd_co_send_request(client, &request, NULL, 0); if (ret < 0) { reply.error = -ret; } else { nbd_co_receive_reply(client, &request, &reply, NULL, 0); } nbd_coroutine_end(client, &request); return -reply.error; }

qemu

f53a829bb9ef14be800556cbc02d8b20fc1050a7

static void sdhci_do_adma(SDHCIState *s) { unsigned int n, begin, length; const uint16_t block_size = s->blksize & 0x0fff; ADMADescr dscr; int i; for (i = 0; i < SDHC_ADMA_DESCS_PER_DELAY; ++i) { s->admaerr &= ~SDHC_ADMAERR_LENGTH_MISMATCH; get_adma_description(s, &dscr); DPRINT_L2("ADMA loop: addr=" TARGET_FMT_plx ", len=%d, attr=%x\n", dscr.addr, dscr.length, dscr.attr); if ((dscr.attr & SDHC_ADMA_ATTR_VALID) == 0) { /* Indicate that error occurred in ST_FDS state */ s->admaerr &= ~SDHC_ADMAERR_STATE_MASK; s->admaerr |= SDHC_ADMAERR_STATE_ST_FDS; /* Generate ADMA error interrupt */ if (s->errintstsen & SDHC_EISEN_ADMAERR) { s->errintsts |= SDHC_EIS_ADMAERR; s->norintsts |= SDHC_NIS_ERR; } sdhci_update_irq(s); return; } length = dscr.length ? dscr.length : 65536; switch (dscr.attr & SDHC_ADMA_ATTR_ACT_MASK) { case SDHC_ADMA_ATTR_ACT_TRAN: /* data transfer */ if (s->trnmod & SDHC_TRNS_READ) { while (length) { if (s->data_count == 0) { for (n = 0; n < block_size; n++) { s->fifo_buffer[n] = sd_read_data(s->card); } } begin = s->data_count; if ((length + begin) < block_size) { s->data_count = length + begin; length = 0; } else { s->data_count = block_size; length -= block_size - begin; } dma_memory_write(&address_space_memory, dscr.addr, &s->fifo_buffer[begin], s->data_count - begin); dscr.addr += s->data_count - begin; if (s->data_count == block_size) { s->data_count = 0; if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) { s->blkcnt--; if (s->blkcnt == 0) { break; } } } } } else { while (length) { begin = s->data_count; if ((length + begin) < block_size) { s->data_count = length + begin; length = 0; } else { s->data_count = block_size; length -= block_size - begin; } dma_memory_read(&address_space_memory, dscr.addr, &s->fifo_buffer[begin], s->data_count - begin); dscr.addr += s->data_count - begin; if (s->data_count == block_size) { for (n = 0; n < block_size; n++) { sd_write_data(s->card, s->fifo_buffer[n]); } s->data_count = 0; if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) { s->blkcnt--; if (s->blkcnt == 0) { break; } } } } } s->admasysaddr += dscr.incr; break; case SDHC_ADMA_ATTR_ACT_LINK: /* link to next descriptor table */ s->admasysaddr = dscr.addr; DPRINT_L1("ADMA link: admasysaddr=0x%lx\n", s->admasysaddr); break; default: s->admasysaddr += dscr.incr; break; } if (dscr.attr & SDHC_ADMA_ATTR_INT) { DPRINT_L1("ADMA interrupt: admasysaddr=0x%lx\n", s->admasysaddr); if (s->norintstsen & SDHC_NISEN_DMA) { s->norintsts |= SDHC_NIS_DMA; } sdhci_update_irq(s); } /* ADMA transfer terminates if blkcnt == 0 or by END attribute */ if (((s->trnmod & SDHC_TRNS_BLK_CNT_EN) && (s->blkcnt == 0)) || (dscr.attr & SDHC_ADMA_ATTR_END)) { DPRINT_L2("ADMA transfer completed\n"); if (length || ((dscr.attr & SDHC_ADMA_ATTR_END) && (s->trnmod & SDHC_TRNS_BLK_CNT_EN) && s->blkcnt != 0)) { ERRPRINT("SD/MMC host ADMA length mismatch\n"); s->admaerr |= SDHC_ADMAERR_LENGTH_MISMATCH | SDHC_ADMAERR_STATE_ST_TFR; if (s->errintstsen & SDHC_EISEN_ADMAERR) { ERRPRINT("Set ADMA error flag\n"); s->errintsts |= SDHC_EIS_ADMAERR; s->norintsts |= SDHC_NIS_ERR; } sdhci_update_irq(s); } SDHCI_GET_CLASS(s)->end_data_transfer(s); return; } } /* we have unfinished business - reschedule to continue ADMA */ timer_mod(s->transfer_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + SDHC_TRANSFER_DELAY); }

qemu

d368ba4376b2c1c24175c74b3733b8fe64dbe8a6

static uint32_t omap_sysctl_read8(void *opaque, target_phys_addr_t addr) { struct omap_sysctl_s *s = (struct omap_sysctl_s *) opaque; int pad_offset, byte_offset; int value; switch (addr) { case 0x030 ... 0x140: /* CONTROL_PADCONF - only used in the POP */ pad_offset = (addr - 0x30) >> 2; byte_offset = (addr - 0x30) & (4 - 1); value = s->padconf[pad_offset]; value = (value >> (byte_offset * 8)) & 0xff; return value; default: break; } OMAP_BAD_REG(addr); return 0; }

qemu

a8170e5e97ad17ca169c64ba87ae2f53850dab4c

abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size) { void *ptr, *prev; abi_ulong addr; int wrapped, repeat; /* If 'start' == 0, then a default start address is used. */ if (start == 0) { start = mmap_next_start; } else { start &= qemu_host_page_mask; } size = HOST_PAGE_ALIGN(size); if (RESERVED_VA) { return mmap_find_vma_reserved(start, size); } addr = start; wrapped = repeat = 0; prev = 0; for (;; prev = ptr) { /* * Reserve needed memory area to avoid a race. * It should be discarded using: * - mmap() with MAP_FIXED flag * - mremap() with MREMAP_FIXED flag * - shmat() with SHM_REMAP flag */ ptr = mmap(g2h(addr), size, PROT_NONE, MAP_ANONYMOUS|MAP_PRIVATE|MAP_NORESERVE, -1, 0); /* ENOMEM, if host address space has no memory */ if (ptr == MAP_FAILED) { return (abi_ulong)-1; } /* Count the number of sequential returns of the same address. This is used to modify the search algorithm below. */ repeat = (ptr == prev ? repeat + 1 : 0); if (h2g_valid(ptr + size - 1)) { addr = h2g(ptr); if ((addr & ~TARGET_PAGE_MASK) == 0) { /* Success. */ if (start == mmap_next_start && addr >= TASK_UNMAPPED_BASE) { mmap_next_start = addr + size; } return addr; } /* The address is not properly aligned for the target. */ switch (repeat) { case 0: /* Assume the result that the kernel gave us is the first with enough free space, so start again at the next higher target page. */ addr = TARGET_PAGE_ALIGN(addr); break; case 1: /* Sometimes the kernel decides to perform the allocation at the top end of memory instead. */ addr &= TARGET_PAGE_MASK; break; case 2: /* Start over at low memory. */ addr = 0; break; default: /* Fail. This unaligned block must the last. */ addr = -1; break; } } else { /* Since the result the kernel gave didn't fit, start again at low memory. If any repetition, fail. */ addr = (repeat ? -1 : 0); } /* Unmap and try again. */ munmap(ptr, size); /* ENOMEM if we checked the whole of the target address space. */ if (addr == -1ul) { return (abi_ulong)-1; } else if (addr == 0) { if (wrapped) { return (abi_ulong)-1; } wrapped = 1; /* Don't actually use 0 when wrapping, instead indicate that we'd truely like an allocation in low memory. */ addr = (mmap_min_addr > TARGET_PAGE_SIZE ? TARGET_PAGE_ALIGN(mmap_min_addr) : TARGET_PAGE_SIZE); } else if (wrapped && addr >= start) { return (abi_ulong)-1; } } }

qemu

d0b3e4f5f4a29d48250887e5c0b3c65bc4dc6d13

static int do_token_out(USBDevice *s, USBPacket *p) { assert(p->devep == 0); switch(s->setup_state) { case SETUP_STATE_ACK: if (s->setup_buf[0] & USB_DIR_IN) { s->setup_state = SETUP_STATE_IDLE; /* transfer OK */ } else { /* ignore additional output */ } return 0; case SETUP_STATE_DATA: if (!(s->setup_buf[0] & USB_DIR_IN)) { int len = s->setup_len - s->setup_index; if (len > p->iov.size) { len = p->iov.size; } usb_packet_copy(p, s->data_buf + s->setup_index, len); s->setup_index += len; if (s->setup_index >= s->setup_len) s->setup_state = SETUP_STATE_ACK; return len; } s->setup_state = SETUP_STATE_IDLE; return USB_RET_STALL; default: return USB_RET_STALL; } }

qemu

079d0b7f1eedcc634c371fe05b617fdc55c8b762

int page_unprotect(target_ulong address, uintptr_t pc) { unsigned int prot; PageDesc *p; target_ulong host_start, host_end, addr; /* Technically this isn't safe inside a signal handler. However we know this only ever happens in a synchronous SEGV handler, so in practice it seems to be ok. */ mmap_lock(); p = page_find(address >> TARGET_PAGE_BITS); if (!p) { mmap_unlock(); return 0; } /* if the page was really writable, then we change its protection back to writable */ if ((p->flags & PAGE_WRITE_ORG) && !(p->flags & PAGE_WRITE)) { host_start = address & qemu_host_page_mask; host_end = host_start + qemu_host_page_size; prot = 0; for (addr = host_start ; addr < host_end ; addr += TARGET_PAGE_SIZE) { p = page_find(addr >> TARGET_PAGE_BITS); p->flags |= PAGE_WRITE; prot |= p->flags; /* and since the content will be modified, we must invalidate the corresponding translated code. */ if (tb_invalidate_phys_page(addr, pc)) { mmap_unlock(); return 2; } #ifdef DEBUG_TB_CHECK tb_invalidate_check(addr); #endif } mprotect((void *)g2h(host_start), qemu_host_page_size, prot & PAGE_BITS); mmap_unlock(); return 1; } mmap_unlock(); return 0; }

qemu

7399a337e4126f7c8c8af3336726f001378c4798

static void truncpasses(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile) { int precno, compno, reslevelno, bandno, cblkno, lev; Jpeg2000CodingStyle *codsty = &s->codsty; for (compno = 0; compno < s->ncomponents; compno++){ Jpeg2000Component *comp = tile->comp + compno; for (reslevelno = 0, lev = codsty->nreslevels-1; reslevelno < codsty->nreslevels; reslevelno++, lev--){ Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno; for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){ for (bandno = 0; bandno < reslevel->nbands ; bandno++){ int bandpos = bandno + (reslevelno > 0); Jpeg2000Band *band = reslevel->band + bandno; Jpeg2000Prec *prec = band->prec + precno; for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){ Jpeg2000Cblk *cblk = prec->cblk + cblkno; cblk->ninclpasses = getcut(cblk, s->lambda, (int64_t)dwt_norms[codsty->transform][bandpos][lev] * (int64_t)band->i_stepsize >> 16); } } } } } }

FFmpeg

83fd377c94d8fbffdb3e69fb3efe1976ff897a88

uint64_t blk_mig_bytes_remaining(void) { return blk_mig_bytes_total() - blk_mig_bytes_transferred(); }

qemu

60fe637bf0e4d7989e21e50f52526444765c63b4

static int init_tile(Jpeg2000DecoderContext *s, int tileno) { int compno; int tilex = tileno % s->numXtiles; int tiley = tileno / s->numXtiles; Jpeg2000Tile *tile = s->tile + tileno; if (!tile->comp) return AVERROR(ENOMEM); tile->coord[0][0] = av_clip(tilex * s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); tile->coord[0][1] = av_clip((tilex + 1) * s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); tile->coord[1][0] = av_clip(tiley * s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); tile->coord[1][1] = av_clip((tiley + 1) * s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); for (compno = 0; compno < s->ncomponents; compno++) { Jpeg2000Component *comp = tile->comp + compno; Jpeg2000CodingStyle *codsty = tile->codsty + compno; Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; int ret; // global bandno comp->coord_o[0][0] = tile->coord[0][0]; comp->coord_o[0][1] = tile->coord[0][1]; comp->coord_o[1][0] = tile->coord[1][0]; comp->coord_o[1][1] = tile->coord[1][1]; if (compno) { comp->coord_o[0][0] /= s->cdx[compno]; comp->coord_o[0][1] /= s->cdx[compno]; comp->coord_o[1][0] /= s->cdy[compno]; comp->coord_o[1][1] /= s->cdy[compno]; } comp->coord[0][0] = ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], s->reduction_factor); comp->coord[0][1] = ff_jpeg2000_ceildivpow2(comp->coord_o[0][1], s->reduction_factor); comp->coord[1][0] = ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], s->reduction_factor); comp->coord[1][1] = ff_jpeg2000_ceildivpow2(comp->coord_o[1][1], s->reduction_factor); if (ret = ff_jpeg2000_init_component(comp, codsty, qntsty, s->cbps[compno], s->cdx[compno], s->cdy[compno], s->avctx)) return ret; } return 0; }

FFmpeg

65d3359fb366ea265a8468d76a111cb7352f0b55

static int srt_write_packet(AVFormatContext *avf, AVPacket *pkt) { SRTContext *srt = avf->priv_data; int write_ts = avf->streams[0]->codec->codec_id != AV_CODEC_ID_SRT; srt->index++; if (write_ts) { int64_t s = pkt->pts, e, d = pkt->duration; if (d <= 0) /* For backward compatibility, fallback to convergence_duration. */ d = pkt->convergence_duration; if (s == AV_NOPTS_VALUE || d < 0) { av_log(avf, AV_LOG_ERROR, "Insufficient timestamps.\n"); return AVERROR(EINVAL); } e = s + d; avio_printf(avf->pb, "%d\n%02d:%02d:%02d,%03d --> %02d:%02d:%02d,%03d\n", srt->index, (int)(s / 3600000), (int)(s / 60000) % 60, (int)(s / 1000) % 60, (int)(s % 1000), (int)(e / 3600000), (int)(e / 60000) % 60, (int)(e / 1000) % 60, (int)(e % 1000)); } avio_write(avf->pb, pkt->data, pkt->size); if (write_ts) avio_write(avf->pb, "\n\n", 2); avio_flush(avf->pb); return 0; }

FFmpeg

e56b0984103b981ec25fe8a22ef9c4905b9751dd

static int flac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr) { FlacEncodeContext *s; int frame_bytes, out_bytes, ret; s = avctx->priv_data; /* when the last block is reached, update the header in extradata */ if (!frame) { s->max_framesize = s->max_encoded_framesize; av_md5_final(s->md5ctx, s->md5sum); write_streaminfo(s, avctx->extradata); return 0; } /* change max_framesize for small final frame */ if (frame->nb_samples < s->frame.blocksize) { s->max_framesize = ff_flac_get_max_frame_size(frame->nb_samples, s->channels, avctx->bits_per_raw_sample); } init_frame(s, frame->nb_samples); copy_samples(s, frame->data[0]); channel_decorrelation(s); remove_wasted_bits(s); frame_bytes = encode_frame(s); /* fallback to verbatim mode if the compressed frame is larger than it would be if encoded uncompressed. */ if (frame_bytes < 0 || frame_bytes > s->max_framesize) { s->frame.verbatim_only = 1; frame_bytes = encode_frame(s); if (frame_bytes < 0) { av_log(avctx, AV_LOG_ERROR, "Bad frame count\n"); return frame_bytes; } } if ((ret = ff_alloc_packet2(avctx, avpkt, frame_bytes))) return ret; out_bytes = write_frame(s, avpkt); s->frame_count++; s->sample_count += frame->nb_samples; if ((ret = update_md5_sum(s, frame->data[0])) < 0) { av_log(avctx, AV_LOG_ERROR, "Error updating MD5 checksum\n"); return ret; } if (out_bytes > s->max_encoded_framesize) s->max_encoded_framesize = out_bytes; if (out_bytes < s->min_framesize) s->min_framesize = out_bytes; avpkt->pts = frame->pts; avpkt->duration = ff_samples_to_time_base(avctx, frame->nb_samples); avpkt->size = out_bytes; *got_packet_ptr = 1; return 0; }

FFmpeg

bcaf64b605442e1622d16da89d4ec0e7730b8a8c

void ff_vp3_v_loop_filter_mmx(uint8_t *src, int stride, int *bounding_values) { __asm__ volatile( "movq %0, %%mm6 \n\t" "movq %1, %%mm4 \n\t" "movq %2, %%mm2 \n\t" "movq %3, %%mm1 \n\t" VP3_LOOP_FILTER(%4) "movq %%mm4, %1 \n\t" "movq %%mm3, %2 \n\t" : "+m" (*(uint64_t*)(src - 2*stride)), "+m" (*(uint64_t*)(src - 1*stride)), "+m" (*(uint64_t*)(src + 0*stride)), "+m" (*(uint64_t*)(src + 1*stride)) : "m"(*(uint64_t*)(bounding_values+129)) ); }

FFmpeg

daa1ea049a9445b7bed03963cb789497065dd1eb

static int decode(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; const uint8_t *buf_end; uint8_t segment_type; int segment_length; int i, ret; av_dlog(avctx, "PGS sub packet:\n"); for (i = 0; i < buf_size; i++) { av_dlog(avctx, "%02x ", buf[i]); if (i % 16 == 15) av_dlog(avctx, "\n"); } if (i & 15) av_dlog(avctx, "\n"); *data_size = 0; /* Ensure that we have received at a least a segment code and segment length */ if (buf_size < 3) return -1; buf_end = buf + buf_size; /* Step through buffer to identify segments */ while (buf < buf_end) { segment_type = bytestream_get_byte(&buf); segment_length = bytestream_get_be16(&buf); av_dlog(avctx, "Segment Length %d, Segment Type %x\n", segment_length, segment_type); if (segment_type != DISPLAY_SEGMENT && segment_length > buf_end - buf) break; switch (segment_type) { case PALETTE_SEGMENT: parse_palette_segment(avctx, buf, segment_length); break; case PICTURE_SEGMENT: parse_picture_segment(avctx, buf, segment_length); break; case PRESENTATION_SEGMENT: ret = parse_presentation_segment(avctx, buf, segment_length, avpkt->pts); if (ret < 0) return ret; break; case WINDOW_SEGMENT: /* * Window Segment Structure (No new information provided): * 2 bytes: Unknown, * 2 bytes: X position of subtitle, * 2 bytes: Y position of subtitle, * 2 bytes: Width of subtitle, * 2 bytes: Height of subtitle. */ break; case DISPLAY_SEGMENT: *data_size = display_end_segment(avctx, data, buf, segment_length); break; default: av_log(avctx, AV_LOG_ERROR, "Unknown subtitle segment type 0x%x, length %d\n", segment_type, segment_length); break; } buf += segment_length; } return buf_size; }

FFmpeg

253d0be6a1ecc343d29ff8e1df0ddf961ab9c772

static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb, AVStream *st, MOVStreamContext *sc) { if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->codec->sample_rate && sc->time_scale > 1) st->codec->sample_rate = sc->time_scale; /* special codec parameters handling */ switch (st->codec->codec_id) { #if CONFIG_DV_DEMUXER case AV_CODEC_ID_DVAUDIO: c->dv_fctx = avformat_alloc_context(); if (!c->dv_fctx) { av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n"); return AVERROR(ENOMEM); } c->dv_demux = avpriv_dv_init_demux(c->dv_fctx); if (!c->dv_demux) { av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n"); return AVERROR(ENOMEM); } sc->dv_audio_container = 1; st->codec->codec_id = AV_CODEC_ID_PCM_S16LE; break; #endif /* no ifdef since parameters are always those */ case AV_CODEC_ID_QCELP: st->codec->channels = 1; // force sample rate for qcelp when not stored in mov if (st->codec->codec_tag != MKTAG('Q','c','l','p')) st->codec->sample_rate = 8000; break; case AV_CODEC_ID_AMR_NB: st->codec->channels = 1; /* force sample rate for amr, stsd in 3gp does not store sample rate */ st->codec->sample_rate = 8000; break; case AV_CODEC_ID_AMR_WB: st->codec->channels = 1; st->codec->sample_rate = 16000; break; case AV_CODEC_ID_MP2: case AV_CODEC_ID_MP3: /* force type after stsd for m1a hdlr */ st->codec->codec_type = AVMEDIA_TYPE_AUDIO; st->need_parsing = AVSTREAM_PARSE_FULL; break; case AV_CODEC_ID_GSM: case AV_CODEC_ID_ADPCM_MS: case AV_CODEC_ID_ADPCM_IMA_WAV: case AV_CODEC_ID_ILBC: st->codec->block_align = sc->bytes_per_frame; break; case AV_CODEC_ID_ALAC: if (st->codec->extradata_size == 36) { st->codec->channels = AV_RB8 (st->codec->extradata + 21); st->codec->sample_rate = AV_RB32(st->codec->extradata + 32); } break; case AV_CODEC_ID_VC1: st->need_parsing = AVSTREAM_PARSE_FULL; break; default: break; } return 0; }

FFmpeg

6ec688e1bc76dd93151cbca1c340162ae4b10d77

void OPPROTO op_srli_T1 (void) { T1 = T1 >> PARAM1; RETURN(); }

qemu

d9bce9d99f4656ae0b0127f7472db9067b8f84ab

static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx) { int pic_size_indx, i, p; IVIPicConfig pic_conf; if (get_bits(&ctx->gb, 18) != 0x3FFF8) { av_log(avctx, AV_LOG_ERROR, "Invalid picture start code!\n"); return AVERROR_INVALIDDATA; } ctx->prev_frame_type = ctx->frame_type; ctx->frame_type = get_bits(&ctx->gb, 3); if (ctx->frame_type == 7) { av_log(avctx, AV_LOG_ERROR, "Invalid frame type: %d\n", ctx->frame_type); return AVERROR_INVALIDDATA; } #if IVI4_STREAM_ANALYSER if (ctx->frame_type == FRAMETYPE_BIDIR) ctx->has_b_frames = 1; #endif ctx->transp_status = get_bits1(&ctx->gb); #if IVI4_STREAM_ANALYSER if (ctx->transp_status) { ctx->has_transp = 1; } #endif /* unknown bit: Mac decoder ignores this bit, XANIM returns error */ if (get_bits1(&ctx->gb)) { av_log(avctx, AV_LOG_ERROR, "Sync bit is set!\n"); return AVERROR_INVALIDDATA; } ctx->data_size = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 24) : 0; /* null frames don't contain anything else so we just return */ if (ctx->frame_type >= FRAMETYPE_NULL_FIRST) { av_dlog(avctx, "Null frame encountered!\n"); return 0; } /* Check key lock status. If enabled - ignore lock word. */ /* Usually we have to prompt the user for the password, but */ /* we don't do that because Indeo 4 videos can be decoded anyway */ if (get_bits1(&ctx->gb)) { skip_bits_long(&ctx->gb, 32); av_dlog(avctx, "Password-protected clip!\n"); } pic_size_indx = get_bits(&ctx->gb, 3); if (pic_size_indx == IVI4_PIC_SIZE_ESC) { pic_conf.pic_height = get_bits(&ctx->gb, 16); pic_conf.pic_width = get_bits(&ctx->gb, 16); } else { pic_conf.pic_height = ivi4_common_pic_sizes[pic_size_indx * 2 + 1]; pic_conf.pic_width = ivi4_common_pic_sizes[pic_size_indx * 2 ]; } /* Decode tile dimensions. */ if (get_bits1(&ctx->gb)) { pic_conf.tile_height = scale_tile_size(pic_conf.pic_height, get_bits(&ctx->gb, 4)); pic_conf.tile_width = scale_tile_size(pic_conf.pic_width, get_bits(&ctx->gb, 4)); #if IVI4_STREAM_ANALYSER ctx->uses_tiling = 1; #endif } else { pic_conf.tile_height = pic_conf.pic_height; pic_conf.tile_width = pic_conf.pic_width; } /* Decode chroma subsampling. We support only 4:4 aka YVU9. */ if (get_bits(&ctx->gb, 2)) { av_log(avctx, AV_LOG_ERROR, "Only YVU9 picture format is supported!\n"); return AVERROR_INVALIDDATA; } pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2; pic_conf.chroma_width = (pic_conf.pic_width + 3) >> 2; /* decode subdivision of the planes */ pic_conf.luma_bands = decode_plane_subdivision(&ctx->gb); if (pic_conf.luma_bands) pic_conf.chroma_bands = decode_plane_subdivision(&ctx->gb); ctx->is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1; if (ctx->is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) { av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n", pic_conf.luma_bands, pic_conf.chroma_bands); return AVERROR_INVALIDDATA; } /* check if picture layout was changed and reallocate buffers */ if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf)) { if (ff_ivi_init_planes(ctx->planes, &pic_conf)) { av_log(avctx, AV_LOG_ERROR, "Couldn't reallocate color planes!\n"); return AVERROR(ENOMEM); } ctx->pic_conf = pic_conf; /* set default macroblock/block dimensions */ for (p = 0; p <= 2; p++) { for (i = 0; i < (!p ? pic_conf.luma_bands : pic_conf.chroma_bands); i++) { ctx->planes[p].bands[i].mb_size = !p ? (!ctx->is_scalable ? 16 : 8) : 4; ctx->planes[p].bands[i].blk_size = !p ? 8 : 4; } } if (ff_ivi_init_tiles(ctx->planes, ctx->pic_conf.tile_width, ctx->pic_conf.tile_height)) { av_log(avctx, AV_LOG_ERROR, "Couldn't reallocate internal structures!\n"); return AVERROR(ENOMEM); } } ctx->frame_num = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 20) : 0; /* skip decTimeEst field if present */ if (get_bits1(&ctx->gb)) skip_bits(&ctx->gb, 8); /* decode macroblock and block huffman codebooks */ if (ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_MB_HUFF, &ctx->mb_vlc, avctx) || ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_BLK_HUFF, &ctx->blk_vlc, avctx)) return AVERROR_INVALIDDATA; ctx->rvmap_sel = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 8; ctx->in_imf = get_bits1(&ctx->gb); ctx->in_q = get_bits1(&ctx->gb); ctx->pic_glob_quant = get_bits(&ctx->gb, 5); /* TODO: ignore this parameter if unused */ ctx->unknown1 = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 0; ctx->checksum = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 16) : 0; /* skip picture header extension if any */ while (get_bits1(&ctx->gb)) { av_dlog(avctx, "Pic hdr extension encountered!\n"); skip_bits(&ctx->gb, 8); } if (get_bits1(&ctx->gb)) { av_log(avctx, AV_LOG_ERROR, "Bad blocks bits encountered!\n"); } align_get_bits(&ctx->gb); return 0; }

FFmpeg

23b203014f5dbd85b75a6b97597be9c877cd3a1b

void ff_vp3_idct_add_altivec(uint8_t *dst, int stride, DCTELEM block[64]) { LOAD_ZERO; vec_u8 t, vdst; vec_s16 vdst_16; vec_u8 vdst_mask = vec_mergeh(vec_splat_u8(-1), vec_lvsl(0, dst)); IDCT_START IDCT_1D(NOP, NOP) TRANSPOSE8(b0, b1, b2, b3, b4, b5, b6, b7); IDCT_1D(ADD8, SHIFT4) #define ADD(a)\ vdst = vec_ld(0, dst);\ vdst_16 = (vec_s16)vec_perm(vdst, zero_u8v, vdst_mask);\ vdst_16 = vec_adds(a, vdst_16);\ t = vec_packsu(vdst_16, vdst_16);\ vec_ste((vec_u32)t, 0, (unsigned int *)dst);\ vec_ste((vec_u32)t, 4, (unsigned int *)dst); ADD(b0) dst += stride; ADD(b1) dst += stride; ADD(b2) dst += stride; ADD(b3) dst += stride; ADD(b4) dst += stride; ADD(b5) dst += stride; ADD(b6) dst += stride; ADD(b7) }

FFmpeg

28f9ab7029bd1a02f659995919f899f84ee7361b

static void qobject_output_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp) { /* FIXME values larger than INT64_MAX become negative */ QObjectOutputVisitor *qov = to_qov(v); qobject_output_add(qov, name, qnum_from_int(*obj)); }

qemu

5923f85fb82df7c8c60a89458a5ae856045e5ab1

static int asf_read_replicated_data(AVFormatContext *s, ASFPacket *asf_pkt) { ASFContext *asf = s->priv_data; AVIOContext *pb = s->pb; int ret; if (!asf_pkt->data_size) { asf_pkt->data_size = asf_pkt->size_left = avio_rl32(pb); // read media object size if (asf_pkt->data_size <= 0) return AVERROR_INVALIDDATA; if ((ret = av_new_packet(&asf_pkt->avpkt, asf_pkt->data_size)) < 0) return ret; } else avio_skip(pb, 4); // reading of media object size is already done asf_pkt->dts = avio_rl32(pb); // read presentation time if (asf->rep_data_len && (asf->rep_data_len >= 8)) avio_skip(pb, asf->rep_data_len - 8); // skip replicated data return 0; }

FFmpeg

c69461d73797e02e7a3ab4316050c241fa91f53f

float64 float64_muladd(float64 a, float64 b, float64 c, int flags STATUS_PARAM) { flag aSign, bSign, cSign, zSign; int_fast16_t aExp, bExp, cExp, pExp, zExp, expDiff; uint64_t aSig, bSig, cSig; flag pInf, pZero, pSign; uint64_t pSig0, pSig1, cSig0, cSig1, zSig0, zSig1; int shiftcount; flag signflip, infzero; a = float64_squash_input_denormal(a STATUS_VAR); b = float64_squash_input_denormal(b STATUS_VAR); c = float64_squash_input_denormal(c STATUS_VAR); aSig = extractFloat64Frac(a); aExp = extractFloat64Exp(a); aSign = extractFloat64Sign(a); bSig = extractFloat64Frac(b); bExp = extractFloat64Exp(b); bSign = extractFloat64Sign(b); cSig = extractFloat64Frac(c); cExp = extractFloat64Exp(c); cSign = extractFloat64Sign(c); infzero = ((aExp == 0 && aSig == 0 && bExp == 0x7ff && bSig == 0) || (aExp == 0x7ff && aSig == 0 && bExp == 0 && bSig == 0)); /* It is implementation-defined whether the cases of (0,inf,qnan) * and (inf,0,qnan) raise InvalidOperation or not (and what QNaN * they return if they do), so we have to hand this information * off to the target-specific pick-a-NaN routine. */ if (((aExp == 0x7ff) && aSig) || ((bExp == 0x7ff) && bSig) || ((cExp == 0x7ff) && cSig)) { return propagateFloat64MulAddNaN(a, b, c, infzero STATUS_VAR); } if (infzero) { float_raise(float_flag_invalid STATUS_VAR); return float64_default_nan; } if (flags & float_muladd_negate_c) { cSign ^= 1; } signflip = (flags & float_muladd_negate_result) ? 1 : 0; /* Work out the sign and type of the product */ pSign = aSign ^ bSign; if (flags & float_muladd_negate_product) { pSign ^= 1; } pInf = (aExp == 0x7ff) || (bExp == 0x7ff); pZero = ((aExp | aSig) == 0) || ((bExp | bSig) == 0); if (cExp == 0x7ff) { if (pInf && (pSign ^ cSign)) { /* addition of opposite-signed infinities => InvalidOperation */ float_raise(float_flag_invalid STATUS_VAR); return float64_default_nan; } /* Otherwise generate an infinity of the same sign */ return packFloat64(cSign ^ signflip, 0x7ff, 0); } if (pInf) { return packFloat64(pSign ^ signflip, 0x7ff, 0); } if (pZero) { if (cExp == 0) { if (cSig == 0) { /* Adding two exact zeroes */ if (pSign == cSign) { zSign = pSign; } else if (STATUS(float_rounding_mode) == float_round_down) { zSign = 1; } else { zSign = 0; } return packFloat64(zSign ^ signflip, 0, 0); } /* Exact zero plus a denorm */ if (STATUS(flush_to_zero)) { float_raise(float_flag_output_denormal STATUS_VAR); return packFloat64(cSign ^ signflip, 0, 0); } } /* Zero plus something non-zero : just return the something */ return packFloat64(cSign ^ signflip, cExp, cSig); } if (aExp == 0) { normalizeFloat64Subnormal(aSig, &aExp, &aSig); } if (bExp == 0) { normalizeFloat64Subnormal(bSig, &bExp, &bSig); } /* Calculate the actual result a * b + c */ /* Multiply first; this is easy. */ /* NB: we subtract 0x3fe where float64_mul() subtracts 0x3ff * because we want the true exponent, not the "one-less-than" * flavour that roundAndPackFloat64() takes. */ pExp = aExp + bExp - 0x3fe; aSig = (aSig | LIT64(0x0010000000000000))<<10; bSig = (bSig | LIT64(0x0010000000000000))<<11; mul64To128(aSig, bSig, &pSig0, &pSig1); if ((int64_t)(pSig0 << 1) >= 0) { shortShift128Left(pSig0, pSig1, 1, &pSig0, &pSig1); pExp--; } zSign = pSign ^ signflip; /* Now [pSig0:pSig1] is the significand of the multiply, with the explicit * bit in position 126. */ if (cExp == 0) { if (!cSig) { /* Throw out the special case of c being an exact zero now */ shift128RightJamming(pSig0, pSig1, 64, &pSig0, &pSig1); return roundAndPackFloat64(zSign, pExp - 1, pSig1 STATUS_VAR); } normalizeFloat64Subnormal(cSig, &cExp, &cSig); } /* Shift cSig and add the explicit bit so [cSig0:cSig1] is the * significand of the addend, with the explicit bit in position 126. */ cSig0 = cSig << (126 - 64 - 52); cSig1 = 0; cSig0 |= LIT64(0x4000000000000000); expDiff = pExp - cExp; if (pSign == cSign) { /* Addition */ if (expDiff > 0) { /* scale c to match p */ shift128RightJamming(cSig0, cSig1, expDiff, &cSig0, &cSig1); zExp = pExp; } else if (expDiff < 0) { /* scale p to match c */ shift128RightJamming(pSig0, pSig1, -expDiff, &pSig0, &pSig1); zExp = cExp; } else { /* no scaling needed */ zExp = cExp; } /* Add significands and make sure explicit bit ends up in posn 126 */ add128(pSig0, pSig1, cSig0, cSig1, &zSig0, &zSig1); if ((int64_t)zSig0 < 0) { shift128RightJamming(zSig0, zSig1, 1, &zSig0, &zSig1); } else { zExp--; } shift128RightJamming(zSig0, zSig1, 64, &zSig0, &zSig1); return roundAndPackFloat64(zSign, zExp, zSig1 STATUS_VAR); } else { /* Subtraction */ if (expDiff > 0) { shift128RightJamming(cSig0, cSig1, expDiff, &cSig0, &cSig1); sub128(pSig0, pSig1, cSig0, cSig1, &zSig0, &zSig1); zExp = pExp; } else if (expDiff < 0) { shift128RightJamming(pSig0, pSig1, -expDiff, &pSig0, &pSig1); sub128(cSig0, cSig1, pSig0, pSig1, &zSig0, &zSig1); zExp = cExp; zSign ^= 1; } else { zExp = pExp; if (lt128(cSig0, cSig1, pSig0, pSig1)) { sub128(pSig0, pSig1, cSig0, cSig1, &zSig0, &zSig1); } else if (lt128(pSig0, pSig1, cSig0, cSig1)) { sub128(cSig0, cSig1, pSig0, pSig1, &zSig0, &zSig1); zSign ^= 1; } else { /* Exact zero */ zSign = signflip; if (STATUS(float_rounding_mode) == float_round_down) { zSign ^= 1; } return packFloat64(zSign, 0, 0); } } --zExp; /* Do the equivalent of normalizeRoundAndPackFloat64() but * starting with the significand in a pair of uint64_t. */ if (zSig0) { shiftcount = countLeadingZeros64(zSig0) - 1; shortShift128Left(zSig0, zSig1, shiftcount, &zSig0, &zSig1); if (zSig1) { zSig0 |= 1; } zExp -= shiftcount; } else { shiftcount = countLeadingZeros64(zSig1) - 1; zSig0 = zSig1 << shiftcount; zExp -= (shiftcount + 64); } return roundAndPackFloat64(zSign, zExp, zSig0 STATUS_VAR); } }

qemu

e3d142d073d02f0a3a4aad79eb838c15b6f99c01

static void vga_precise_update_retrace_info(VGACommonState *s) { int htotal_chars; int hretr_start_char; int hretr_skew_chars; int hretr_end_char; int vtotal_lines; int vretr_start_line; int vretr_end_line; int dots; #if 0 int div2, sldiv2; #endif int clocking_mode; int clock_sel; const int clk_hz[] = {25175000, 28322000, 25175000, 25175000}; int64_t chars_per_sec; struct vga_precise_retrace *r = &s->retrace_info.precise; htotal_chars = s->cr[VGA_CRTC_H_TOTAL] + 5; hretr_start_char = s->cr[VGA_CRTC_H_SYNC_START]; hretr_skew_chars = (s->cr[VGA_CRTC_H_SYNC_END] >> 5) & 3; hretr_end_char = s->cr[VGA_CRTC_H_SYNC_END] & 0x1f; vtotal_lines = (s->cr[VGA_CRTC_V_TOTAL] | (((s->cr[VGA_CRTC_OVERFLOW] & 1) | ((s->cr[VGA_CRTC_OVERFLOW] >> 4) & 2)) << 8)) + 2; vretr_start_line = s->cr[VGA_CRTC_V_SYNC_START] | ((((s->cr[VGA_CRTC_OVERFLOW] >> 2) & 1) | ((s->cr[VGA_CRTC_OVERFLOW] >> 6) & 2)) << 8); vretr_end_line = s->cr[VGA_CRTC_V_SYNC_END] & 0xf; clocking_mode = (s->sr[VGA_SEQ_CLOCK_MODE] >> 3) & 1; clock_sel = (s->msr >> 2) & 3; dots = (s->msr & 1) ? 8 : 9; chars_per_sec = clk_hz[clock_sel] / dots; htotal_chars <<= clocking_mode; r->total_chars = vtotal_lines * htotal_chars; if (r->freq) { r->ticks_per_char = NANOSECONDS_PER_SECOND / (r->total_chars * r->freq); } else { r->ticks_per_char = NANOSECONDS_PER_SECOND / chars_per_sec; } r->vstart = vretr_start_line; r->vend = r->vstart + vretr_end_line + 1; r->hstart = hretr_start_char + hretr_skew_chars; r->hend = r->hstart + hretr_end_char + 1; r->htotal = htotal_chars; #if 0 div2 = (s->cr[VGA_CRTC_MODE] >> 2) & 1; sldiv2 = (s->cr[VGA_CRTC_MODE] >> 3) & 1; printf ( "hz=%f\n" "htotal = %d\n" "hretr_start = %d\n" "hretr_skew = %d\n" "hretr_end = %d\n" "vtotal = %d\n" "vretr_start = %d\n" "vretr_end = %d\n" "div2 = %d sldiv2 = %d\n" "clocking_mode = %d\n" "clock_sel = %d %d\n" "dots = %d\n" "ticks/char = %" PRId64 "\n" "\n", (double) NANOSECONDS_PER_SECOND / (r->ticks_per_char * r->total_chars), htotal_chars, hretr_start_char, hretr_skew_chars, hretr_end_char, vtotal_lines, vretr_start_line, vretr_end_line, div2, sldiv2, clocking_mode, clock_sel, clk_hz[clock_sel], dots, r->ticks_per_char ); #endif }

qemu

94ef4f337fb614f18b765a8e0e878a4c23cdedcd

static void diag288_timer_expired(void *dev) { qemu_log_mask(CPU_LOG_RESET, "Watchdog timer expired.\n"); watchdog_perform_action(); /* Reset the watchdog only if the guest was notified about expiry. */ switch (get_watchdog_action()) { case WDT_DEBUG: case WDT_NONE: case WDT_PAUSE: return; } wdt_diag288_reset(dev); }

qemu

fe345a3d5d7ed4bc2965c65542832b1fa785ae9d

void pcie_aer_inject_error_print(Monitor *mon, const QObject *data) { QDict *qdict; int devfn; assert(qobject_type(data) == QTYPE_QDICT); qdict = qobject_to_qdict(data); devfn = (int)qdict_get_int(qdict, "devfn"); monitor_printf(mon, "OK id: %s root bus: %s, bus: %x devfn: %x.%x\n", qdict_get_str(qdict, "id"), qdict_get_str(qdict, "root_bus"), (int) qdict_get_int(qdict, "bus"), PCI_SLOT(devfn), PCI_FUNC(devfn)); }

qemu

04e00c92ef75629a241ebc50537f75de0867928d

static void gen_branch(DisasContext *ctx, int insn_bytes) { if (ctx->hflags & MIPS_HFLAG_BMASK) { int proc_hflags = ctx->hflags & MIPS_HFLAG_BMASK; /* Branches completion */ ctx->hflags &= ~MIPS_HFLAG_BMASK; ctx->bstate = BS_BRANCH; save_cpu_state(ctx, 0); /* FIXME: Need to clear can_do_io. */ switch (proc_hflags & MIPS_HFLAG_BMASK_BASE) { case MIPS_HFLAG_FBNSLOT: MIPS_DEBUG("forbidden slot"); gen_goto_tb(ctx, 0, ctx->pc + insn_bytes); break; case MIPS_HFLAG_B: /* unconditional branch */ MIPS_DEBUG("unconditional branch"); if (proc_hflags & MIPS_HFLAG_BX) { tcg_gen_xori_i32(hflags, hflags, MIPS_HFLAG_M16); } gen_goto_tb(ctx, 0, ctx->btarget); break; case MIPS_HFLAG_BL: /* blikely taken case */ MIPS_DEBUG("blikely branch taken"); gen_goto_tb(ctx, 0, ctx->btarget); break; case MIPS_HFLAG_BC: /* Conditional branch */ MIPS_DEBUG("conditional branch"); { TCGLabel *l1 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_NE, bcond, 0, l1); gen_goto_tb(ctx, 1, ctx->pc + insn_bytes); gen_set_label(l1); gen_goto_tb(ctx, 0, ctx->btarget); } break; case MIPS_HFLAG_BR: /* unconditional branch to register */ MIPS_DEBUG("branch to register"); if (ctx->insn_flags & (ASE_MIPS16 | ASE_MICROMIPS)) { TCGv t0 = tcg_temp_new(); TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_andi_tl(t0, btarget, 0x1); tcg_gen_trunc_tl_i32(t1, t0); tcg_temp_free(t0); tcg_gen_andi_i32(hflags, hflags, ~(uint32_t)MIPS_HFLAG_M16); tcg_gen_shli_i32(t1, t1, MIPS_HFLAG_M16_SHIFT); tcg_gen_or_i32(hflags, hflags, t1); tcg_temp_free_i32(t1); tcg_gen_andi_tl(cpu_PC, btarget, ~(target_ulong)0x1); } else { tcg_gen_mov_tl(cpu_PC, btarget); } if (ctx->singlestep_enabled) { save_cpu_state(ctx, 0); gen_helper_0e0i(raise_exception, EXCP_DEBUG); } tcg_gen_exit_tb(0); break; default: MIPS_DEBUG("unknown branch"); break; } } }

qemu

a5f533909e746ca6e534b232fb42c9c6fd81b468

static int flac_encode_frame(AVCodecContext *avctx, uint8_t *frame, int buf_size, void *data) { FlacEncodeContext *s; const int16_t *samples = data; int frame_bytes, out_bytes; s = avctx->priv_data; /* when the last block is reached, update the header in extradata */ if (!data) { s->max_framesize = s->max_encoded_framesize; av_md5_final(s->md5ctx, s->md5sum); write_streaminfo(s, avctx->extradata); return 0; } /* change max_framesize for small final frame */ if (avctx->frame_size < s->frame.blocksize) { s->max_framesize = ff_flac_get_max_frame_size(avctx->frame_size, s->channels, 16); } init_frame(s); copy_samples(s, samples); channel_decorrelation(s); frame_bytes = encode_frame(s); if (buf_size < frame_bytes) { av_log(avctx, AV_LOG_ERROR, "output buffer too small\n"); return 0; } out_bytes = write_frame(s, frame, buf_size); /* fallback to verbatim mode if the compressed frame is larger than it would be if encoded uncompressed. */ if (out_bytes > s->max_framesize) { s->frame.verbatim_only = 1; frame_bytes = encode_frame(s); if (buf_size < frame_bytes) { av_log(avctx, AV_LOG_ERROR, "output buffer too small\n"); return 0; } out_bytes = write_frame(s, frame, buf_size); } s->frame_count++; avctx->coded_frame->pts = s->sample_count; s->sample_count += avctx->frame_size; update_md5_sum(s, samples); if (out_bytes > s->max_encoded_framesize) s->max_encoded_framesize = out_bytes; if (out_bytes < s->min_framesize) s->min_framesize = out_bytes; return out_bytes; }

FFmpeg

3d2cd42f8a19460d1fd44771646b4411c3148383

static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt) { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; DNXHDContext *ctx = avctx->priv_data; ThreadFrame frame = { .f = data }; AVFrame *picture = data; int first_field = 1; int ret, i; ff_dlog(avctx, "frame size %d\n", buf_size); decode_coding_unit: if ((ret = dnxhd_decode_header(ctx, picture, buf, buf_size, first_field)) < 0) return ret; if ((avctx->width || avctx->height) && (ctx->width != avctx->width || ctx->height != avctx->height)) { av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %dx%d\n", avctx->width, avctx->height, ctx->width, ctx->height); first_field = 1; } if (avctx->pix_fmt != AV_PIX_FMT_NONE && avctx->pix_fmt != ctx->pix_fmt) { av_log(avctx, AV_LOG_WARNING, "pix_fmt changed: %s -> %s\n", av_get_pix_fmt_name(avctx->pix_fmt), av_get_pix_fmt_name(ctx->pix_fmt)); first_field = 1; } avctx->pix_fmt = ctx->pix_fmt; ret = ff_set_dimensions(avctx, ctx->width, ctx->height); if (ret < 0) return ret; if (first_field) { if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) return ret; picture->pict_type = AV_PICTURE_TYPE_I; picture->key_frame = 1; } ctx->buf_size = buf_size - 0x280; ctx->buf = buf + 0x280; avctx->execute2(avctx, dnxhd_decode_row, picture, NULL, ctx->mb_height); if (first_field && picture->interlaced_frame) { buf += ctx->cid_table->coding_unit_size; buf_size -= ctx->cid_table->coding_unit_size; first_field = 0; goto decode_coding_unit; } ret = 0; for (i = 0; i < avctx->thread_count; i++) { ret += ctx->rows[i].errors; ctx->rows[i].errors = 0; } if (ret) { av_log(ctx->avctx, AV_LOG_ERROR, "%d lines with errors\n", ret); return AVERROR_INVALIDDATA; } *got_frame = 1; return avpkt->size; }

FFmpeg

6f1ccca4ae3b93b6a2a820a7a0e72081ab35767c

static void encode_gray_bitstream(HYuvContext *s, int count){ int i; count/=2; if(s->flags&CODEC_FLAG_PASS1){ for(i=0; i<count; i++){ s->stats[0][ s->temp[0][2*i ] ]++; s->stats[0][ s->temp[0][2*i+1] ]++; } }else if(s->context){ for(i=0; i<count; i++){ s->stats[0][ s->temp[0][2*i ] ]++; put_bits(&s->pb, s->len[0][ s->temp[0][2*i ] ], s->bits[0][ s->temp[0][2*i ] ]); s->stats[0][ s->temp[0][2*i+1] ]++; put_bits(&s->pb, s->len[0][ s->temp[0][2*i+1] ], s->bits[0][ s->temp[0][2*i+1] ]); } }else{ for(i=0; i<count; i++){ put_bits(&s->pb, s->len[0][ s->temp[0][2*i ] ], s->bits[0][ s->temp[0][2*i ] ]); put_bits(&s->pb, s->len[0][ s->temp[0][2*i+1] ], s->bits[0][ s->temp[0][2*i+1] ]); } } }

FFmpeg

0ecca7a49f8e254c12a3a1de048d738bfbb614c6

qemu_irq qemu_irq_invert(qemu_irq irq) { /* The default state for IRQs is low, so raise the output now. */ qemu_irq_raise(irq); return qemu_allocate_irqs(qemu_notirq, irq, 1)[0]; }

qemu

f3c7d0389fe8a2792fd4c1cf151b885de03c8f62

static int dca_exss_parse_asset_header(DCAContext *s) { int header_pos = get_bits_count(&s->gb); int header_size; int channels; int embedded_stereo = 0; int embedded_6ch = 0; int drc_code_present; int extensions_mask; int i, j; if (get_bits_left(&s->gb) < 16) return -1; /* We will parse just enough to get to the extensions bitmask with which * we can set the profile value. */ header_size = get_bits(&s->gb, 9) + 1; skip_bits(&s->gb, 3); // asset index if (s->static_fields) { if (get_bits1(&s->gb)) skip_bits(&s->gb, 4); // asset type descriptor if (get_bits1(&s->gb)) skip_bits_long(&s->gb, 24); // language descriptor if (get_bits1(&s->gb)) { /* How can one fit 1024 bytes of text here if the maximum value * for the asset header size field above was 512 bytes? */ int text_length = get_bits(&s->gb, 10) + 1; if (get_bits_left(&s->gb) < text_length * 8) return -1; skip_bits_long(&s->gb, text_length * 8); // info text } skip_bits(&s->gb, 5); // bit resolution - 1 skip_bits(&s->gb, 4); // max sample rate code channels = get_bits(&s->gb, 8) + 1; if (get_bits1(&s->gb)) { // 1-to-1 channels to speakers int spkr_remap_sets; int spkr_mask_size = 16; int num_spkrs[7]; if (channels > 2) embedded_stereo = get_bits1(&s->gb); if (channels > 6) embedded_6ch = get_bits1(&s->gb); if (get_bits1(&s->gb)) { spkr_mask_size = (get_bits(&s->gb, 2) + 1) << 2; skip_bits(&s->gb, spkr_mask_size); // spkr activity mask } spkr_remap_sets = get_bits(&s->gb, 3); for (i = 0; i < spkr_remap_sets; i++) { /* std layout mask for each remap set */ num_spkrs[i] = dca_exss_mask2count(get_bits(&s->gb, spkr_mask_size)); } for (i = 0; i < spkr_remap_sets; i++) { int num_dec_ch_remaps = get_bits(&s->gb, 5) + 1; if (get_bits_left(&s->gb) < 0) return -1; for (j = 0; j < num_spkrs[i]; j++) { int remap_dec_ch_mask = get_bits_long(&s->gb, num_dec_ch_remaps); int num_dec_ch = av_popcount(remap_dec_ch_mask); skip_bits_long(&s->gb, num_dec_ch * 5); // remap codes } } } else { skip_bits(&s->gb, 3); // representation type } } drc_code_present = get_bits1(&s->gb); if (drc_code_present) get_bits(&s->gb, 8); // drc code if (get_bits1(&s->gb)) skip_bits(&s->gb, 5); // dialog normalization code if (drc_code_present && embedded_stereo) get_bits(&s->gb, 8); // drc stereo code if (s->mix_metadata && get_bits1(&s->gb)) { skip_bits(&s->gb, 1); // external mix skip_bits(&s->gb, 6); // post mix gain code if (get_bits(&s->gb, 2) != 3) // mixer drc code skip_bits(&s->gb, 3); // drc limit else skip_bits(&s->gb, 8); // custom drc code if (get_bits1(&s->gb)) // channel specific scaling for (i = 0; i < s->num_mix_configs; i++) skip_bits_long(&s->gb, s->mix_config_num_ch[i] * 6); // scale codes else skip_bits_long(&s->gb, s->num_mix_configs * 6); // scale codes for (i = 0; i < s->num_mix_configs; i++) { if (get_bits_left(&s->gb) < 0) return -1; dca_exss_skip_mix_coeffs(&s->gb, channels, s->mix_config_num_ch[i]); if (embedded_6ch) dca_exss_skip_mix_coeffs(&s->gb, 6, s->mix_config_num_ch[i]); if (embedded_stereo) dca_exss_skip_mix_coeffs(&s->gb, 2, s->mix_config_num_ch[i]); } } switch (get_bits(&s->gb, 2)) { case 0: extensions_mask = get_bits(&s->gb, 12); break; case 1: extensions_mask = DCA_EXT_EXSS_XLL; break; case 2: extensions_mask = DCA_EXT_EXSS_LBR; break; case 3: extensions_mask = 0; /* aux coding */ break; } /* not parsed further, we were only interested in the extensions mask */ if (get_bits_left(&s->gb) < 0) return -1; if (get_bits_count(&s->gb) - header_pos > header_size * 8) { av_log(s->avctx, AV_LOG_WARNING, "Asset header size mismatch.\n"); return -1; } skip_bits_long(&s->gb, header_pos + header_size * 8 - get_bits_count(&s->gb)); if (extensions_mask & DCA_EXT_EXSS_XLL) s->profile = FF_PROFILE_DTS_HD_MA; else if (extensions_mask & (DCA_EXT_EXSS_XBR | DCA_EXT_EXSS_X96 | DCA_EXT_EXSS_XXCH)) s->profile = FF_PROFILE_DTS_HD_HRA; if (!(extensions_mask & DCA_EXT_CORE)) av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n"); if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask) av_log(s->avctx, AV_LOG_WARNING, "DTS extensions detection mismatch (%d, %d)\n", extensions_mask & DCA_CORE_EXTS, s->core_ext_mask); return 0; }

FFmpeg

53918a1c54b49e76c3ca517e2caada8372995712

void ff_aac_search_for_ltp(AACEncContext *s, SingleChannelElement *sce, int common_window) { int w, g, w2, i, start = 0, count = 0; int saved_bits = -(15 + FFMIN(sce->ics.max_sfb, MAX_LTP_LONG_SFB)); float *C34 = &s->scoefs[128*0], *PCD = &s->scoefs[128*1]; float *PCD34 = &s->scoefs[128*2]; const int max_ltp = FFMIN(sce->ics.max_sfb, MAX_LTP_LONG_SFB); if (sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE) { if (sce->ics.ltp.lag) { memset(&sce->lcoeffs[0], 0.0f, 3072*sizeof(sce->lcoeffs[0])); memset(&sce->ics.ltp, 0, sizeof(LongTermPrediction)); } return; } if (!sce->ics.ltp.lag) return; for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) { start = 0; for (g = 0; g < sce->ics.num_swb; g++) { int bits1 = 0, bits2 = 0; float dist1 = 0.0f, dist2 = 0.0f; if (w*16+g > max_ltp) { start += sce->ics.swb_sizes[g]; continue; } for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) { int bits_tmp1, bits_tmp2; FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g]; for (i = 0; i < sce->ics.swb_sizes[g]; i++) PCD[i] = sce->coeffs[start+(w+w2)*128+i] - sce->lcoeffs[start+(w+w2)*128+i]; abs_pow34_v(C34, &sce->coeffs[start+(w+w2)*128], sce->ics.swb_sizes[g]); abs_pow34_v(PCD34, PCD, sce->ics.swb_sizes[g]); dist1 += quantize_band_cost(s, &sce->coeffs[start+(w+w2)*128], C34, sce->ics.swb_sizes[g], sce->sf_idx[(w+w2)*16+g], sce->band_type[(w+w2)*16+g], s->lambda/band->threshold, INFINITY, &bits_tmp1, NULL, 0); dist2 += quantize_band_cost(s, PCD, PCD34, sce->ics.swb_sizes[g], sce->sf_idx[(w+w2)*16+g], sce->band_type[(w+w2)*16+g], s->lambda/band->threshold, INFINITY, &bits_tmp2, NULL, 0); bits1 += bits_tmp1; bits2 += bits_tmp2; } if (dist2 < dist1 && bits2 < bits1) { for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) for (i = 0; i < sce->ics.swb_sizes[g]; i++) sce->coeffs[start+(w+w2)*128+i] -= sce->lcoeffs[start+(w+w2)*128+i]; sce->ics.ltp.used[w*16+g] = 1; saved_bits += bits1 - bits2; count++; } start += sce->ics.swb_sizes[g]; } } sce->ics.ltp.present = !!count && (saved_bits >= 0); sce->ics.predictor_present = !!sce->ics.ltp.present; /* Reset any marked sfbs */ if (!sce->ics.ltp.present && !!count) { for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) { start = 0; for (g = 0; g < sce->ics.num_swb; g++) { if (sce->ics.ltp.used[w*16+g]) { for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) { for (i = 0; i < sce->ics.swb_sizes[g]; i++) { sce->coeffs[start+(w+w2)*128+i] += sce->lcoeffs[start+(w+w2)*128+i]; } } } start += sce->ics.swb_sizes[g]; } } } }

FFmpeg

ed08cbd7b172a1dba74230527ef761aafaf2fcce

static void gen_std(DisasContext *ctx) { int rs; TCGv EA; rs = rS(ctx->opcode); if ((ctx->opcode & 0x3) == 0x2) { #if defined(CONFIG_USER_ONLY) gen_inval_exception(ctx, POWERPC_EXCP_PRIV_OPC); #else /* stq */ if (unlikely(ctx->mem_idx == 0)) { gen_inval_exception(ctx, POWERPC_EXCP_PRIV_OPC); return; } if (unlikely(rs & 1)) { gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); return; } if (unlikely(ctx->le_mode)) { /* Little-endian mode is not handled */ gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_LE); return; } gen_set_access_type(ctx, ACCESS_INT); EA = tcg_temp_new(); gen_addr_imm_index(ctx, EA, 0x03); gen_qemu_st64(ctx, cpu_gpr[rs], EA); gen_addr_add(ctx, EA, EA, 8); gen_qemu_st64(ctx, cpu_gpr[rs+1], EA); tcg_temp_free(EA); #endif } else { /* std / stdu */ if (Rc(ctx->opcode)) { if (unlikely(rA(ctx->opcode) == 0)) { gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); return; } } gen_set_access_type(ctx, ACCESS_INT); EA = tcg_temp_new(); gen_addr_imm_index(ctx, EA, 0x03); gen_qemu_st64(ctx, cpu_gpr[rs], EA); if (Rc(ctx->opcode)) tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); tcg_temp_free(EA); } }

qemu

84cab1e2f5be3ea6eaa65c9fc0422fb992946ce0

static int parse_vtrk(AVFormatContext *s, FourxmDemuxContext *fourxm, uint8_t *buf, int size, int left) { AVStream *st; /* check that there is enough data */ if (size != vtrk_SIZE || left < size + 8) { return AVERROR_INVALIDDATA; } /* allocate a new AVStream */ st = avformat_new_stream(s, NULL); if (!st) return AVERROR(ENOMEM); avpriv_set_pts_info(st, 60, 1, fourxm->fps); fourxm->video_stream_index = st->index; st->codec->codec_type = AVMEDIA_TYPE_VIDEO; st->codec->codec_id = AV_CODEC_ID_4XM; st->codec->extradata_size = 4; st->codec->extradata = av_malloc(4); AV_WL32(st->codec->extradata, AV_RL32(buf + 16)); st->codec->width = AV_RL32(buf + 36); st->codec->height = AV_RL32(buf + 40); return 0; }

FFmpeg

d256ed78ffe202a4dcc8d625becffc716bfa3977

static void free_test_data(test_data *data) { AcpiSdtTable *temp; int i; g_free(data->rsdt_tables_addr); for (i = 0; i < data->tables->len; ++i) { temp = &g_array_index(data->tables, AcpiSdtTable, i); g_free(temp->aml); if (temp->aml_file && !temp->tmp_files_retain && g_strstr_len(temp->aml_file, -1, "aml-")) { unlink(temp->aml_file); } g_free(temp->aml_file); g_free(temp->asl); if (temp->asl_file && !temp->tmp_files_retain) { unlink(temp->asl_file); } g_free(temp->asl_file); } g_array_free(data->tables, false); }

qemu

f11dc27bcc031b9dc90ffd82c503b55f83c246ca

static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize, unsigned segment_width) { #define TOP_HBAR 1 #define MID_HBAR 2 #define BOT_HBAR 4 #define LEFT_TOP_VBAR 8 #define LEFT_BOT_VBAR 16 #define RIGHT_TOP_VBAR 32 #define RIGHT_BOT_VBAR 64 struct { int x, y, w, h; } segments[] = { { 1, 0, 5, 1 }, /* TOP_HBAR */ { 1, 6, 5, 1 }, /* MID_HBAR */ { 1, 12, 5, 1 }, /* BOT_HBAR */ { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */ { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */ { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */ { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */ }; static const unsigned char masks[10] = { /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR, /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR, /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR, /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, }; unsigned mask = masks[digit]; int i; draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13); for (i = 0; i < FF_ARRAY_ELEMS(segments); i++) if (mask & (1<<i)) draw_rectangle(255, dst, dst_linesize, segment_width, segments[i].x, segments[i].y, segments[i].w, segments[i].h); }

FFmpeg

7ab631261033a71a52563c3b23b6eef826eb5994

static int query_formats(AVFilterGraph *graph, AVClass *log_ctx) { int i, j, ret; int scaler_count = 0, resampler_count = 0; int count_queried = 0, count_merged = 0, count_already_merged = 0, count_delayed = 0; for (i = 0; i < graph->nb_filters; i++) { AVFilterContext *f = graph->filters[i]; if (formats_declared(f)) continue; if (f->filter->query_formats) ret = filter_query_formats(f); else ret = ff_default_query_formats(f); if (ret < 0 && ret != AVERROR(EAGAIN)) return ret; /* note: EAGAIN could indicate a partial success, not counted yet */ count_queried += ret >= 0; } /* go through and merge as many format lists as possible */ for (i = 0; i < graph->nb_filters; i++) { AVFilterContext *filter = graph->filters[i]; for (j = 0; j < filter->nb_inputs; j++) { AVFilterLink *link = filter->inputs[j]; int convert_needed = 0; if (!link) continue; #define MERGE_DISPATCH(field, statement) \ if (!(link->in_ ## field && link->out_ ## field)) { \ count_delayed++; \ } else if (link->in_ ## field == link->out_ ## field) { \ count_already_merged++; \ } else { \ count_merged++; \ statement \ } MERGE_DISPATCH(formats, if (!ff_merge_formats(link->in_formats, link->out_formats, link->type)) convert_needed = 1; ) if (link->type == AVMEDIA_TYPE_AUDIO) { MERGE_DISPATCH(channel_layouts, if (!ff_merge_channel_layouts(link->in_channel_layouts, link->out_channel_layouts)) convert_needed = 1; ) MERGE_DISPATCH(samplerates, if (!ff_merge_samplerates(link->in_samplerates, link->out_samplerates)) convert_needed = 1; ) } #undef MERGE_DISPATCH if (convert_needed) { AVFilterContext *convert; AVFilter *filter; AVFilterLink *inlink, *outlink; char scale_args[256]; char inst_name[30]; /* couldn't merge format lists. auto-insert conversion filter */ switch (link->type) { case AVMEDIA_TYPE_VIDEO: if (!(filter = avfilter_get_by_name("scale"))) { av_log(log_ctx, AV_LOG_ERROR, "'scale' filter " "not present, cannot convert pixel formats.\n"); return AVERROR(EINVAL); } snprintf(inst_name, sizeof(inst_name), "auto-inserted scaler %d", scaler_count++); av_strlcpy(scale_args, "0:0", sizeof(scale_args)); if (graph->scale_sws_opts) { av_strlcat(scale_args, ":", sizeof(scale_args)); av_strlcat(scale_args, graph->scale_sws_opts, sizeof(scale_args)); } if ((ret = avfilter_graph_create_filter(&convert, filter, inst_name, scale_args, NULL, graph)) < 0) return ret; break; case AVMEDIA_TYPE_AUDIO: if (!(filter = avfilter_get_by_name("aresample"))) { av_log(log_ctx, AV_LOG_ERROR, "'aresample' filter " "not present, cannot convert audio formats.\n"); return AVERROR(EINVAL); } snprintf(inst_name, sizeof(inst_name), "auto-inserted resampler %d", resampler_count++); scale_args[0] = '\0'; if (graph->aresample_swr_opts) snprintf(scale_args, sizeof(scale_args), "%s", graph->aresample_swr_opts); if ((ret = avfilter_graph_create_filter(&convert, filter, inst_name, graph->aresample_swr_opts, NULL, graph)) < 0) return ret; break; default: return AVERROR(EINVAL); } if ((ret = avfilter_insert_filter(link, convert, 0, 0)) < 0) return ret; filter_query_formats(convert); inlink = convert->inputs[0]; outlink = convert->outputs[0]; if (!ff_merge_formats( inlink->in_formats, inlink->out_formats, inlink->type) || !ff_merge_formats(outlink->in_formats, outlink->out_formats, outlink->type)) ret |= AVERROR(ENOSYS); if (inlink->type == AVMEDIA_TYPE_AUDIO && (!ff_merge_samplerates(inlink->in_samplerates, inlink->out_samplerates) || !ff_merge_channel_layouts(inlink->in_channel_layouts, inlink->out_channel_layouts))) ret |= AVERROR(ENOSYS); if (outlink->type == AVMEDIA_TYPE_AUDIO && (!ff_merge_samplerates(outlink->in_samplerates, outlink->out_samplerates) || !ff_merge_channel_layouts(outlink->in_channel_layouts, outlink->out_channel_layouts))) ret |= AVERROR(ENOSYS); if (ret < 0) { av_log(log_ctx, AV_LOG_ERROR, "Impossible to convert between the formats supported by the filter " "'%s' and the filter '%s'\n", link->src->name, link->dst->name); return ret; } } } } av_log(graph, AV_LOG_DEBUG, "query_formats: " "%d queried, %d merged, %d already done, %d delayed\n", count_queried, count_merged, count_already_merged, count_delayed); if (count_delayed) { AVBPrint bp; if (count_queried || count_merged) return AVERROR(EAGAIN); av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC); for (i = 0; i < graph->nb_filters; i++) if (!formats_declared(graph->filters[i])) av_bprintf(&bp, "%s%s", bp.len ? ", " : "", graph->filters[i]->name); av_log(graph, AV_LOG_ERROR, "The following filters could not choose their formats: %s\n" "Consider inserting the (a)format filter near their input or " "output.\n", bp.str); return AVERROR(EIO); } return 0; }

FFmpeg

4582e4c086bc36e20e3c0b85c8108cfa352e0d88

static inline void mix_2f_1r_to_stereo(AC3DecodeContext *ctx) { int i; float (*output)[256] = ctx->audio_block.block_output; for (i = 0; i < 256; i++) { output[1][i] += output[2][i]; output[2][i] += output[3][i]; } memset(output[3], 0, sizeof(output[3])); }

FFmpeg

486637af8ef29ec215e0e0b7ecd3b5470f0e04e5

static int decode_cabac_mb_cbp_chroma( H264Context *h) { int ctx; int cbp_a, cbp_b; cbp_a = (h->left_cbp>>4)&0x03; cbp_b = (h-> top_cbp>>4)&0x03; ctx = 0; if( cbp_a > 0 ) ctx++; if( cbp_b > 0 ) ctx += 2; if( get_cabac( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 ) return 0; ctx = 4; if( cbp_a == 2 ) ctx++; if( cbp_b == 2 ) ctx += 2; return 1 + get_cabac( &h->cabac, &h->cabac_state[77 + ctx] ); }

FFmpeg

851ded8918c977d8160c6617b69604f758cabf50

static int mp3_write_audio_packet(AVFormatContext *s, AVPacket *pkt) { MP3Context *mp3 = s->priv_data; if (pkt && pkt->data && pkt->size >= 4) { MPADecodeHeader c; int av_unused base; avpriv_mpegaudio_decode_header(&c, AV_RB32(pkt->data)); if (!mp3->initial_bitrate) mp3->initial_bitrate = c.bit_rate; if ((c.bit_rate == 0) || (mp3->initial_bitrate != c.bit_rate)) mp3->has_variable_bitrate = 1; #ifdef FILTER_VBR_HEADERS /* filter out XING and INFO headers. */ base = 4 + xing_offtbl[c.lsf == 1][c.nb_channels == 1]; if (base + 4 <= pkt->size) { uint32_t v = AV_RB32(pkt->data + base); if (MKBETAG('X','i','n','g') == v || MKBETAG('I','n','f','o') == v) return 0; } /* filter out VBRI headers. */ base = 4 + 32; if (base + 4 <= pkt->size && MKBETAG('V','B','R','I') == AV_RB32(pkt->data + base)) return 0; #endif if (mp3->xing_offset) mp3_xing_add_frame(mp3, pkt); } return ff_raw_write_packet(s, pkt); }

FFmpeg

cb65b32c97b06fc611b53c1ab77a2edbaadee84f

int has_altivec(void) { #ifdef __AMIGAOS4__ ULONG result = 0; extern struct ExecIFace *IExec; IExec->GetCPUInfoTags(GCIT_VectorUnit, &result, TAG_DONE); if (result == VECTORTYPE_ALTIVEC) return 1; return 0; #else /* __AMIGAOS4__ */ #ifdef SYS_DARWIN int sels[2] = {CTL_HW, HW_VECTORUNIT}; int has_vu = 0; size_t len = sizeof(has_vu); int err; err = sysctl(sels, 2, &has_vu, &len, NULL, 0); if (err == 0) return (has_vu != 0); #else /* SYS_DARWIN */ /* no Darwin, do it the brute-force way */ /* this is borrowed from the libmpeg2 library */ { signal (SIGILL, sigill_handler); if (sigsetjmp (jmpbuf, 1)) { signal (SIGILL, SIG_DFL); } else { canjump = 1; asm volatile ("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0" : : "r" (-1)); signal (SIGILL, SIG_DFL); return 1; } } #endif /* SYS_DARWIN */ return 0; #endif /* __AMIGAOS4__ */ }

FFmpeg

c97f54020d5d55511e28622551f13233bd8ceb56

static int mpeg_field_start(MpegEncContext *s, const uint8_t *buf, int buf_size) { AVCodecContext *avctx = s->avctx; Mpeg1Context *s1 = (Mpeg1Context *) s; int ret; if (s->picture_structure == PICT_FRAME) s->first_field = 0; else s->first_field ^= 1; /* start frame decoding */ if (s->first_field || s->picture_structure == PICT_FRAME) { AVFrameSideData *pan_scan; if ((ret = ff_mpv_frame_start(s, avctx)) < 0) return ret; ff_mpeg_er_frame_start(s); /* first check if we must repeat the frame */ s->current_picture_ptr->f->repeat_pict = 0; if (s->repeat_first_field) { if (s->progressive_sequence) { if (s->top_field_first) s->current_picture_ptr->f->repeat_pict = 4; else s->current_picture_ptr->f->repeat_pict = 2; } else if (s->progressive_frame) { s->current_picture_ptr->f->repeat_pict = 1; } } pan_scan = av_frame_new_side_data(s->current_picture_ptr->f, AV_FRAME_DATA_PANSCAN, sizeof(s1->pan_scan)); if (!pan_scan) return AVERROR(ENOMEM); memcpy(pan_scan->data, &s1->pan_scan, sizeof(s1->pan_scan)); if (s1->a53_caption) { AVFrameSideData *sd = av_frame_new_side_data( s->current_picture_ptr->f, AV_FRAME_DATA_A53_CC, s1->a53_caption_size); if (sd) memcpy(sd->data, s1->a53_caption, s1->a53_caption_size); av_freep(&s1->a53_caption); } if (s1->has_stereo3d) { AVStereo3D *stereo = av_stereo3d_create_side_data(s->current_picture_ptr->f); if (!stereo) return AVERROR(ENOMEM); *stereo = s1->stereo3d; s1->has_stereo3d = 0; } if (s1->has_afd) { AVFrameSideData *sd = av_frame_new_side_data(s->current_picture_ptr->f, AV_FRAME_DATA_AFD, 1); if (!sd) return AVERROR(ENOMEM); *sd->data = s1->afd; s1->has_afd = 0; } if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_FRAME)) ff_thread_finish_setup(avctx); } else { // second field int i; if (!s->current_picture_ptr) { av_log(s->avctx, AV_LOG_ERROR, "first field missing\n"); return AVERROR_INVALIDDATA; } if (s->avctx->hwaccel && (s->avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD)) { if (s->avctx->hwaccel->end_frame(s->avctx) < 0) av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode first field\n"); } for (i = 0; i < 4; i++) { s->current_picture.f->data[i] = s->current_picture_ptr->f->data[i]; if (s->picture_structure == PICT_BOTTOM_FIELD) s->current_picture.f->data[i] += s->current_picture_ptr->f->linesize[i]; } } if (avctx->hwaccel) { if ((ret = avctx->hwaccel->start_frame(avctx, buf, buf_size)) < 0) return ret; } #if FF_API_XVMC FF_DISABLE_DEPRECATION_WARNINGS // ff_mpv_frame_start will call this function too, // but we need to call it on every field if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) if (ff_xvmc_field_start(s, avctx) < 0) return -1; FF_ENABLE_DEPRECATION_WARNINGS #endif /* FF_API_XVMC */ return 0; }

FFmpeg

dcc39ee10e82833ce24aa57926c00ffeb1948198

static inline int cris_bound_w(int v, int b) { int r = v; asm ("bound.w\t%1, %0\n" : "+r" (r) : "ri" (b)); return r; }

qemu

21ce148c7ec71ee32834061355a5ecfd1a11f90f

static void mpeg_decode_picture_coding_extension(MpegEncContext *s) { s->full_pel[0] = s->full_pel[1] = 0; s->mpeg_f_code[0][0] = get_bits(&s->gb, 4); s->mpeg_f_code[0][1] = get_bits(&s->gb, 4); s->mpeg_f_code[1][0] = get_bits(&s->gb, 4); s->mpeg_f_code[1][1] = get_bits(&s->gb, 4); s->intra_dc_precision = get_bits(&s->gb, 2); s->picture_structure = get_bits(&s->gb, 2); s->top_field_first = get_bits1(&s->gb); s->frame_pred_frame_dct = get_bits1(&s->gb); s->concealment_motion_vectors = get_bits1(&s->gb); s->q_scale_type = get_bits1(&s->gb); s->intra_vlc_format = get_bits1(&s->gb); s->alternate_scan = get_bits1(&s->gb); s->repeat_first_field = get_bits1(&s->gb); s->chroma_420_type = get_bits1(&s->gb); s->progressive_frame = get_bits1(&s->gb); /* composite display not parsed */ dprintf("intra_dc_precion=%d\n", s->intra_dc_precision); dprintf("picture_structure=%d\n", s->picture_structure); dprintf("conceal=%d\n", s->concealment_motion_vectors); dprintf("intra_vlc_format=%d\n", s->intra_vlc_format); dprintf("alternate_scan=%d\n", s->alternate_scan); dprintf("frame_pred_frame_dct=%d\n", s->frame_pred_frame_dct); }

FFmpeg

1cb0edb40b8e94e1a50ad40c40d43e34ed8435fe

static int xen_remove_from_physmap(XenIOState *state, hwaddr start_addr, ram_addr_t size) { unsigned long i = 0; int rc = 0; XenPhysmap *physmap = NULL; hwaddr phys_offset = 0; physmap = get_physmapping(state, start_addr, size); if (physmap == NULL) { return -1; } phys_offset = physmap->phys_offset; size = physmap->size; DPRINTF("unmapping vram to %"HWADDR_PRIx" - %"HWADDR_PRIx", from ", "%"HWADDR_PRIx"\n", phys_offset, phys_offset + size, start_addr); size >>= TARGET_PAGE_BITS; start_addr >>= TARGET_PAGE_BITS; phys_offset >>= TARGET_PAGE_BITS; for (i = 0; i < size; i++) { unsigned long idx = start_addr + i; xen_pfn_t gpfn = phys_offset + i; rc = xc_domain_add_to_physmap(xen_xc, xen_domid, XENMAPSPACE_gmfn, idx, gpfn); if (rc) { fprintf(stderr, "add_to_physmap MFN %"PRI_xen_pfn" to PFN %" PRI_xen_pfn" failed: %d\n", idx, gpfn, rc); return -rc; } } QLIST_REMOVE(physmap, list); if (state->log_for_dirtybit == physmap) { state->log_for_dirtybit = NULL; } free(physmap); return 0; }

qemu

c5633d998a27502ad8cc10c2d46f91b02555ae7a

static int mpegvideo_probe(AVProbeData *p) { uint32_t code= -1; int pic=0, seq=0, slice=0, pspack=0, vpes=0, apes=0, res=0, sicle=0; int i; uint32_t last = 0; for(i=0; i<p->buf_size; i++){ code = (code<<8) + p->buf[i]; if ((code & 0xffffff00) == 0x100) { switch(code){ case SEQ_START_CODE: seq++; break; case PICTURE_START_CODE: pic++; break; case PACK_START_CODE: pspack++; break; case 0x1b6: res++; break; } if (code >= SLICE_START_CODE && code <= 0x1af) { if (last >= SLICE_START_CODE && last <= 0x1af) { if (code >= last) slice++; else sicle++; }else{ if (code == SLICE_START_CODE) slice++; else sicle++; } } if ((code & 0x1f0) == VIDEO_ID) vpes++; else if((code & 0x1e0) == AUDIO_ID) apes++; last = code; } } if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !apes && !res && slice > sicle) { if(vpes) return AVPROBE_SCORE_EXTENSION / 4; else return pic>1 ? AVPROBE_SCORE_EXTENSION + 1 : AVPROBE_SCORE_EXTENSION / 2; // +1 for .mpg } return 0; }

FFmpeg

3836af476534e6f84be7b3a19afce3530af50703

static void usb_ohci_init(OHCIState *ohci, DeviceState *dev, int num_ports, dma_addr_t localmem_base, char *masterbus, uint32_t firstport, AddressSpace *as, Error **errp) { Error *err = NULL; int i; ohci->as = as; if (usb_frame_time == 0) { #ifdef OHCI_TIME_WARP usb_frame_time = NANOSECONDS_PER_SECOND; usb_bit_time = NANOSECONDS_PER_SECOND / (USB_HZ / 1000); #else usb_frame_time = NANOSECONDS_PER_SECOND / 1000; if (NANOSECONDS_PER_SECOND >= USB_HZ) { usb_bit_time = NANOSECONDS_PER_SECOND / USB_HZ; } else { usb_bit_time = 1; #endif trace_usb_ohci_init_time(usb_frame_time, usb_bit_time); ohci->num_ports = num_ports; if (masterbus) { USBPort *ports[OHCI_MAX_PORTS]; for(i = 0; i < num_ports; i++) { ports[i] = &ohci->rhport[i].port; usb_register_companion(masterbus, ports, num_ports, firstport, ohci, &ohci_port_ops, USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL, &err); if (err) { error_propagate(errp, err); } else { usb_bus_new(&ohci->bus, sizeof(ohci->bus), &ohci_bus_ops, dev); for (i = 0; i < num_ports; i++) { usb_register_port(&ohci->bus, &ohci->rhport[i].port, ohci, i, &ohci_port_ops, USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL); memory_region_init_io(&ohci->mem, OBJECT(dev), &ohci_mem_ops, ohci, "ohci", 256); ohci->localmem_base = localmem_base; ohci->name = object_get_typename(OBJECT(dev)); usb_packet_init(&ohci->usb_packet); ohci->async_td = 0; ohci->eof_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, ohci_frame_boundary, ohci);

qemu

d400fc018b326104d26d730e5cc8c36c1f662c34

static void isabus_fdc_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = isabus_fdc_realize; dc->fw_name = "fdc"; dc->no_user = 1; dc->reset = fdctrl_external_reset_isa; dc->vmsd = &vmstate_isa_fdc; dc->props = isa_fdc_properties; set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); }

qemu

efec3dd631d94160288392721a5f9c39e50fb2bc

static int64_t expr_unary(Monitor *mon) { int64_t n; char *p; int ret; switch(*pch) { case '+': next(); n = expr_unary(mon); break; case '-': next(); n = -expr_unary(mon); break; case '~': next(); n = ~expr_unary(mon); break; case '(': next(); n = expr_sum(mon); if (*pch != ')') { expr_error(mon, "')' expected"); } next(); break; case '\'': pch++; if (*pch == '\0') expr_error(mon, "character constant expected"); n = *pch; pch++; if (*pch != '\'') expr_error(mon, "missing terminating \' character"); next(); break; case '$': { char buf[128], *q; target_long reg=0; pch++; q = buf; while ((*pch >= 'a' && *pch <= 'z') || (*pch >= 'A' && *pch <= 'Z') || (*pch >= '0' && *pch <= '9') || *pch == '_' || *pch == '.') { if ((q - buf) < sizeof(buf) - 1) *q++ = *pch; pch++; } while (qemu_isspace(*pch)) pch++; *q = 0; ret = get_monitor_def(&reg, buf); if (ret < 0) expr_error(mon, "unknown register"); n = reg; } break; case '\0': expr_error(mon, "unexpected end of expression"); n = 0; break; default: errno = 0; n = strtoull(pch, &p, 0); if (errno == ERANGE) { expr_error(mon, "number too large"); } if (pch == p) { expr_error(mon, "invalid char in expression"); } pch = p; while (qemu_isspace(*pch)) pch++; break; } return n; }

qemu

277acfe8b38de35be8cb6e274678b5a7919c2d44

mst_fpga_writeb(void *opaque, target_phys_addr_t addr, uint32_t value) { mst_irq_state *s = (mst_irq_state *) opaque; value &= 0xffffffff; switch (addr) { case MST_LEDDAT1: s->leddat1 = value; break; case MST_LEDDAT2: s->leddat2 = value; break; case MST_LEDCTRL: s->ledctrl = value; break; case MST_GPSWR: s->gpswr = value; break; case MST_MSCWR1: s->mscwr1 = value; break; case MST_MSCWR2: s->mscwr2 = value; break; case MST_MSCWR3: s->mscwr3 = value; break; case MST_MSCRD: s->mscrd = value; break; case MST_INTMSKENA: /* Mask interrupt */ s->intmskena = (value & 0xFEEFF); qemu_set_irq(s->parent, s->intsetclr & s->intmskena); break; case MST_INTSETCLR: /* clear or set interrupt */ s->intsetclr = (value & 0xFEEFF); qemu_set_irq(s->parent, s->intsetclr & s->intmskena); break; /* For PCMCIAx allow the to change only power and reset */ case MST_PCMCIA0: s->pcmcia0 = (value & 0x1f) | (s->pcmcia0 & ~0x1f); break; case MST_PCMCIA1: s->pcmcia1 = (value & 0x1f) | (s->pcmcia1 & ~0x1f); break; default: printf("Mainstone - mst_fpga_writeb: Bad register offset " "0x" TARGET_FMT_plx " \n", addr); } }

qemu

b2bedb214469af55179d907a60cd67fed6b0779e

static int get_std_framerate(int i){ if(i<60*12) return i*1001; else return ((const int[]){24,30,60,12,15,48})[i-60*12]*1000*12; }

FFmpeg

59163139679b0aa2cb84cd6d7a3f696ed5a5813a

void ff_jpeg2000_cleanup(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty) { int reslevelno, bandno, precno; for (reslevelno = 0; comp->reslevel && reslevelno < codsty->nreslevels; reslevelno++) { Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno; for (bandno = 0; bandno < reslevel->nbands; bandno++) { Jpeg2000Band *band = reslevel->band + bandno; for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++) { Jpeg2000Prec *prec = band->prec + precno; av_freep(&prec->zerobits); av_freep(&prec->cblkincl); av_freep(&prec->cblk); } av_freep(&band->prec); } av_freep(&reslevel->band); } ff_dwt_destroy(&comp->dwt); av_freep(&comp->reslevel); av_freep(&comp->i_data); av_freep(&comp->f_data); }

FFmpeg

912ce9dd2080c5837285a471d750fa311e09b555

static void do_cont(int argc, const char **argv) { vm_start(); }

qemu

9307c4c1d93939db9b04117b654253af5113dc21

static inline void _t_gen_mov_TN_env(TCGv tn, int offset) { if (offset > sizeof(CPUCRISState)) { fprintf(stderr, "wrong load from env from off=%d\n", offset); } tcg_gen_ld_tl(tn, cpu_env, offset); }

qemu

37654d9e6af84003982f8b9a5d59a4aef28e0a79

static const char *bdrv_get_parent_name(const BlockDriverState *bs) { BdrvChild *c; const char *name; /* If multiple parents have a name, just pick the first one. */ QLIST_FOREACH(c, &bs->parents, next_parent) { if (c->role->get_name) { name = c->role->get_name(c); if (name && *name) { return name; } } } return NULL; }

qemu

1f0c461b82d5ec2664ca0cfc9548f80da87a8f8a