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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2024-06-11 13:36:40 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2024-06-20 18:58:39 +0200 |
| commit | 2e5287e519dc0f99ade473096c9b6742f0d8114b (patch) | |
| tree | f2365af0f39a6e602e55787e60cec18b8910d11c | |
| parent | c1097556c734a418354fa23c403e0237a5e93bb5 (diff) | |
| download | ffmpeg-2e5287e519dc0f99ade473096c9b6742f0d8114b.tar.gz | |
avcodec/mpv_reconstruct_mb_template: Optimize always-true branch away
There are only two mpegvideo decoders that use another
(software) pixel format than YUV420: MPEG-1/2 and
the MPEG-4 studio profile. Neither of these use this part
of the code, so one can optimize the 422 code away when
this code is compiled for the decoder.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
| -rw-r--r-- | libavcodec/mpv_reconstruct_mb_template.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/mpv_reconstruct_mb_template.c b/libavcodec/mpv_reconstruct_mb_template.c index e39b3d0e73..257767e80b 100644 --- a/libavcodec/mpv_reconstruct_mb_template.c +++ b/libavcodec/mpv_reconstruct_mb_template.c @@ -172,7 +172,8 @@ void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64], add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { - if (s->chroma_y_shift) { + av_assert2(IS_ENCODER || s->chroma_y_shift); + if (!IS_ENCODER || s->chroma_y_shift) { add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); } else { |