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avcodec/mpegvideo: Don't unnecessarily allocate buffers

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-01-01 12:12:22 +01:00
parent 750c765ca4
commit 4fc4cf4931
1 changed files with 5 additions and 5 deletions
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10
libavcodec/mpegvideo.c
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@ -371,17 +371,17 @@ static int init_duplicate_context(MpegEncContext *s)
s->pblocks[i] = &s->block[i];
}
if (!(s->block32 = av_mallocz(sizeof(*s->block32))) ||
!(s->dpcm_macroblock = av_mallocz(sizeof(*s->dpcm_macroblock))))
return AVERROR(ENOMEM);
s->dpcm_direction = 0;
if (s->avctx->codec_tag == AV_RL32("VCR2")) {
// exchange uv
FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
}
if (s->out_format == FMT_H263) {
if (!(s->block32 = av_mallocz(sizeof(*s->block32))) ||
!(s->dpcm_macroblock = av_mallocz(sizeof(*s->dpcm_macroblock))))
return AVERROR(ENOMEM);
s->dpcm_direction = 0;
/* ac values */
if (!FF_ALLOCZ_TYPED_ARRAY(s->ac_val_base, yc_size))
return AVERROR(ENOMEM);