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avcodec/ffv1dec: Fix end computation with ec=2

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Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 10e5af15bf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-10-10 20:39:23 +02:00
parent d5a26a396d
commit 1f5977e95c
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1 changed files with 1 additions and 1 deletions
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libavcodec/ffv1dec.c
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@ -362,7 +362,7 @@ static int decode_slice(AVCodecContext *c, void *arg)
if (fs->ac != AC_GOLOMB_RICE && f->version > 2) {
int v;
get_rac(&fs->c, (uint8_t[]) { 129 });
v = fs->c.bytestream_end - fs->c.bytestream - 2 - 5*f->ec;
v = fs->c.bytestream_end - fs->c.bytestream - 2 - 5*!!f->ec;
if (v) {
av_log(f->avctx, AV_LOG_ERROR, "bytestream end mismatching by %d\n", v);
fs->slice_damaged = 1;