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avcodec/iff: Reorder checks to avoid unnecessary alloc+free

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-11-29 17:57:05 +01:00 committed by Andreas Rheinhardt
parent 3d0559ee7d
commit 9ae6f5ae92
1 changed files with 4 additions and 5 deletions
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9
libavcodec/iff.c
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@ -299,14 +299,13 @@ static int extract_header(AVCodecContext *const avctx,
avctx->pix_fmt = AV_PIX_FMT_RGB32;
av_freep(&s->mask_buf);
av_freep(&s->mask_palbuf);
if (s->bpp > 16) {
av_log(avctx, AV_LOG_ERROR, "bpp %d too large for palette\n", s->bpp);
return AVERROR(ENOMEM);
}
s->mask_buf = av_malloc((s->planesize * 32) + AV_INPUT_BUFFER_PADDING_SIZE);
if (!s->mask_buf)
return AVERROR(ENOMEM);
if (s->bpp > 16) {
av_log(avctx, AV_LOG_ERROR, "bpp %d too large for palette\n", s->bpp);
av_freep(&s->mask_buf);
return AVERROR(ENOMEM);
}
s->mask_palbuf = av_malloc((2 << s->bpp) * sizeof(uint32_t) + AV_INPUT_BUFFER_PADDING_SIZE);
if (!s->mask_palbuf) {
av_freep(&s->mask_buf);