diff options
| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-10-12 19:17:21 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-10-20 07:56:17 +0200 |
| commit | 77f8d2da9de33b791a7d6b88fe89e77b25daca5c (patch) | |
| tree | 51c5e1e66ea0e0f4547752190120f0dab33f703c /libavcodec | |
| parent | e19d10645cf43e536c4116822e7736d1696ee378 (diff) | |
avcodec/mpeg4videodec: Remove always-true checks
codec_id is always AV_CODEC_ID_MPEG4 for mpeg4_decode_mb(),
as the MPEG-4 decoder is the only decoder for which
ff_mpeg4_decode_picture_header() as well as decode_init()
are ever called and these are the only places where
the decode_mb function pointer is ever set to mpeg4_decode_mb().
ff_mpeg4_workaround_bugs() is also only called for the MPEG-4
decoder (the caller checks the codec id).
(ff_mpeg4_decode_picture_header() is also called for the MPEG-4
parser, but it never uses the decode_mb function pointer.)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/mpeg4videodec.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c index aeb0d003ec..b4e2c09706 100644 --- a/libavcodec/mpeg4videodec.c +++ b/libavcodec/mpeg4videodec.c @@ -1648,6 +1648,7 @@ static int mpeg4_decode_mb(MpegEncContext *s, int16_t block[6][64]) int16_t *mot_val; static const int8_t quant_tab[4] = { -1, -2, 1, 2 }; const int xy = s->mb_x + s->mb_y * s->mb_stride; + int next; av_assert2(s == (void*)ctx); av_assert2(s->h263_pred); @@ -1999,8 +2000,7 @@ intra: end: /* per-MB end of slice check */ - if (s->codec_id == AV_CODEC_ID_MPEG4) { - int next = mpeg4_is_resync(ctx); + next = mpeg4_is_resync(ctx); if (next) { if (s->mb_x + s->mb_y*s->mb_width + 1 > next && (s->avctx->err_recognition & AV_EF_AGGRESSIVE)) { return AVERROR_INVALIDDATA; @@ -2019,7 +2019,6 @@ end: return SLICE_END; } - } return SLICE_OK; } @@ -3084,7 +3083,6 @@ int ff_mpeg4_workaround_bugs(AVCodecContext *avctx) ctx->divx_version, ctx->divx_build, s->divx_packed ? "p" : ""); if (CONFIG_MPEG4_DECODER && ctx->xvid_build >= 0 && - s->codec_id == AV_CODEC_ID_MPEG4 && avctx->idct_algo == FF_IDCT_AUTO) { avctx->idct_algo = FF_IDCT_XVID; ff_mpv_idct_init(s); |