[FFmpeg-devel] [PATCH 3/5] avcodec/ffv1dec: Fix end computation with ec=2

Michael Niedermayer michael at niedermayer.cc
Thu Oct 10 23:45:26 EEST 2024


Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/ffv1dec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
index b4d719a7eec..6aa36716cb3 100644
--- a/libavcodec/ffv1dec.c
+++ b/libavcodec/ffv1dec.c
@@ -347,7 +347,7 @@ static int decode_slice(AVCodecContext *c, void *arg)
     if (f->ac != AC_GOLOMB_RICE && f->version > 2) {
         int v;
         get_rac(&sc->c, (uint8_t[]) { 129 });
-        v = sc->c.bytestream_end - sc->c.bytestream - 2 - 5*f->ec;
+        v = sc->c.bytestream_end - sc->c.bytestream - 2 - 5*!!f->ec;
         if (v) {
             av_log(f->avctx, AV_LOG_ERROR, "bytestream end mismatching by %d\n", v);
             slice_set_damaged(f, sc);
-- 
2.47.0



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