static int bit8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h) { const uint8_t *scantable = s->intra_scantable.permutated; LOCAL_ALIGNED_16(int16_t, temp, [64]); int i, last, run, bits, level, start_i; const int esc_length = s->ac_esc_length; uint8_t *length, *last_length; av_assert2(h == 8); s->pdsp.diff_pixels(temp, src1, src2, stride); s->block_last_index[0 /* FIXME */] = last = s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i); bits = 0; if (s->mb_intra) { start_i = 1; length = s->intra_ac_vlc_length; last_length = s->intra_ac_vlc_last_length; bits += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma } else { start_i = 0; length = s->inter_ac_vlc_length; last_length = s->inter_ac_vlc_last_length; } if (last >= start_i) { run = 0; for (i = start_i; i < last; i++) { int j = scantable[i]; level = temp[j]; if (level) { level += 64; if ((level & (~127)) == 0) bits += length[UNI_AC_ENC_INDEX(run, level)]; else bits += esc_length; run = 0; } else run++; } i = scantable[last]; level = temp[i] + 64; av_assert2(level - 64); if ((level & (~127)) == 0) bits += last_length[UNI_AC_ENC_INDEX(run, level)]; else bits += esc_length; } return bits; }