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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-13 19:28:01 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 00:21:50 +0200 |
| commit | 47da68fc8e244158c858b928b82181271dd28a60 (patch) | |
| tree | d7d85099c1c00f17cbd146d664d963d9cc96542b /libavcodec/ac3dec.h | |
| parent | 479bb1cacd25bd2b1fcaebbf716d3ffb3960453e (diff) | |
| download | ffmpeg-47da68fc8e244158c858b928b82181271dd28a60.tar.gz | |
avcodec/ac3dec: Keep track of band structure
It is needed in some corner cases that seem not to be forbidden
Fixes: out of array index
Fixes: 1538/clusterfuzz-testcase-minimized-4696904925446144
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9351a156de724edb69ba6e1f05884fe806a13a21)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/ac3dec.h')
| -rw-r--r-- | libavcodec/ac3dec.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h index bac661c167..aa4cf04f8a 100644 --- a/libavcodec/ac3dec.h +++ b/libavcodec/ac3dec.h @@ -128,6 +128,7 @@ typedef struct AC3DecodeContext { int phase_flags_in_use; ///< phase flags in use (phsflginu) int phase_flags[AC3_MAX_CPL_BANDS]; ///< phase flags (phsflg) int num_cpl_bands; ///< number of coupling bands (ncplbnd) + uint8_t cpl_band_struct[AC3_MAX_CPL_BANDS]; uint8_t cpl_band_sizes[AC3_MAX_CPL_BANDS]; ///< number of coeffs in each coupling band int firstchincpl; ///< first channel in coupling int first_cpl_coords[AC3_MAX_CHANNELS]; ///< first coupling coordinates states (firstcplcos) @@ -144,6 +145,7 @@ typedef struct AC3DecodeContext { int spx_dst_start_freq; ///< spx starting frequency bin for copying (copystartmant) ///< the copy region ends at the start of the spx region. int num_spx_bands; ///< number of spx bands (nspxbnds) + uint8_t spx_band_struct[SPX_MAX_BANDS]; uint8_t spx_band_sizes[SPX_MAX_BANDS]; ///< number of bins in each spx band uint8_t first_spx_coords[AC3_MAX_CHANNELS]; ///< first spx coordinates states (firstspxcos) INTFLOAT spx_noise_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS]; ///< spx noise blending factor (nblendfact) |