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5 commits

Author SHA1 Message Date
Michael Niedermayer
8d5bde96ba avcodec/dstdec: Check that AC probabilities are within range 
ISO/IEC 14496-3:2005(E): "Each entry of P_one[ ][ ] is in the range of 1 to
128, corresponding to a probability of 1/256 to 128/256 of the next error bit (bit E, See Figure 10.5)..."

Fixes: Timeout (42sec ->1sec)
Fixes: 18181/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5736646250594304

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0c3e1b395b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:44 +01:00
Michael Niedermayer
f4bdb532fc avcodec/dstdec: Check read_table() for failure 
Fixes: Timeout (too long -> 42sec)
Fixes: 18181/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5736646250594304

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 03ea8d8cd4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:44 +01:00
Michael Niedermayer
2567675f00 avcodec/dstdec: Fix integer overflow in samples_per_frame computation 
Fixes: Timeout (? -> 2ms)
Fixes: 17616/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5198057947267072

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7dc0943d4a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
fd4a52e4da avcodec/dstdec: Fix "warning: initialization from incompatible pointer type [enabled by default]" 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-05-15 12:21:15 +02:00
Peter Ross
86e493a6ff avcodec: add Direct Stream Transfer (DST) decoder 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-15 01:01:45 +02:00