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Code Issues Releases Activity

avcodec/mpeg12dec: Use proper logcontext

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When used with the "mpegvideo" or "mpeg1video" decoder (which do not
have a private class) this would lead to the log callback receiving
a non-NULL object with a NULL AVClass pointer. The default log callback
handles this gracefully, yet it is probably an API violation.

Reviewed-by: Ramiro Polla <ramiro.polla@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-03-04 23:06:38 +01:00
parent 9e2773034b
commit 883120aaf0
1 changed files with 2 additions and 2 deletions
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4
libavcodec/mpeg12dec.c
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@ -1655,11 +1655,11 @@ static int mpeg_decode_slice(MpegEncContext *s, int mb_y,
}
eos: // end of slice
if (get_bits_left(&s->gb) < 0) {
av_log(s, AV_LOG_ERROR, "overread %d\n", -get_bits_left(&s->gb));
av_log(s->avctx, AV_LOG_ERROR, "overread %d\n", -get_bits_left(&s->gb));
return AVERROR_INVALIDDATA;
}
*buf += (get_bits_count(&s->gb) - 1) / 8;
ff_dlog(s, "Slice start:%d %d end:%d %d\n", s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y);
ff_dlog(s->avctx, "Slice start:%d %d end:%d %d\n", s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y);
return 0;
}