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| author | Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> | 2015-12-04 18:13:07 +0100 |
|---|---|---|
| committer | Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> | 2015-12-17 21:37:15 +0100 |
| commit | 4733060ef39466a443680e4f453e06d375844294 (patch) | |
| tree | 9ebd6b97643c86764261be6b6ff2d5eac0c78c5d | |
| parent | e1b38b36853b67428447c1ea483bd27db7534e15 (diff) | |
| download | ffmpeg-4733060ef39466a443680e4f453e06d375844294.tar.gz | |
aaccoder: prevent crash of anmr coder
If minq is negative, the range of sf_idx can be larger than
SCALE_MAX_DIFF allows, causing assertion failures later in
encode_scale_factors.
Reviewed-by: Claudio Freire <klaussfreire@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit 7a4652dd5da0502ff21c183b5ca7d76b1cfd6c51)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
| -rw-r--r-- | libavcodec/aaccoder.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aaccoder.c b/libavcodec/aaccoder.c index 64eee3236b..c9a7253db7 100644 --- a/libavcodec/aaccoder.c +++ b/libavcodec/aaccoder.c @@ -691,7 +691,7 @@ static void search_for_quantizers_anmr(AVCodecContext *avctx, AACEncContext *s, } while (idx) { sce->sf_idx[bandaddr[idx]] = minq + q0; - minq = paths[idx][minq].prev; + minq = FFMAX(paths[idx][minq].prev, 0); idx--; } //set the same quantizers inside window groups |