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avcodec/mpegvideo: Zero-init mbintra_table

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Up until now, they are marked as dirty (filled with 1), meaning that
the entries are in need of a reset via ff_clean_intra_table_entries();
but actually, the entries are initialized to the state that
ff_clean_intra_table_entries() produces, so they can be marked
as non-dirty (i.e. filled with 0).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-06-13 07:44:59 +02:00
parent c4ebe55f94
commit c4fd33a951
1 changed files with 1 additions and 2 deletions
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3
libavcodec/mpegvideo.c
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@ -361,9 +361,8 @@ av_cold int ff_mpv_init_context_frame(MpegEncContext *s)
// Note the + 1 is for a quicker MPEG-4 slice_end detection // Note the + 1 is for a quicker MPEG-4 slice_end detection
if (!(s->mbskip_table = av_mallocz(mb_array_size + 2)) || if (!(s->mbskip_table = av_mallocz(mb_array_size + 2)) ||
/* which mb is an intra block, init macroblock skip table */ /* which mb is an intra block, init macroblock skip table */
!(s->mbintra_table = av_malloc(mb_array_size))) !(s->mbintra_table = av_mallocz(mb_array_size)))
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
memset(s->mbintra_table, 1, mb_array_size);
ALLOC_POOL(qscale_table, mv_table_size, 0); ALLOC_POOL(qscale_table, mv_table_size, 0);
ALLOC_POOL(mb_type, mv_table_size * sizeof(uint32_t), 0); ALLOC_POOL(mb_type, mv_table_size * sizeof(uint32_t), 0);