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| author | Luca Barbato <lu_zero@gentoo.org> | 2012-09-28 14:38:13 +0200 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2013-01-04 07:43:38 +0100 |
| commit | ec6719f6551db6e93d8af9bffdaf0163b5d59b5b (patch) | |
| tree | bfd75c7946bb594293046fec68f9836ae90bff14 | |
| parent | 11ecd8574a2edd482c687123f374f22c3390c6dc (diff) | |
| download | ffmpeg-ec6719f6551db6e93d8af9bffdaf0163b5d59b5b.tar.gz | |
mpegaudiodec: fix short_start calculation
The value should be always 3, as it follows from the specification.
Fix a stack buffer overflow in exponents_from_scale_factors as reported
by asan. Thanks to Dale Curtis for the sample vector.
(cherry picked from commit 97cfa55eea39cef30abe14682c56c1e4e7f6f10d)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
| -rw-r--r-- | libavcodec/mpegaudiodec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c index 033d76e049..fd94fb1dcc 100644 --- a/libavcodec/mpegaudiodec.c +++ b/libavcodec/mpegaudiodec.c @@ -210,7 +210,7 @@ static void ff_compute_band_indexes(MPADecodeContext *s, GranuleDef *g){ else g->long_end = 4; /* 8000 Hz */ - g->short_start = 2 + (s->sample_rate_index != 8); + g->short_start = 3; } else { g->long_end = 0; g->short_start = 0; |