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| author | Alex Converse <alex.converse@gmail.com> | 2012-01-12 11:12:24 -0800 |
|---|---|---|
| committer | Alex Converse <alex.converse@gmail.com> | 2012-01-12 13:26:13 -0800 |
| commit | 4df30f71147b7bedd4457bcfa0e4efe01085af9f (patch) | |
| tree | a6fec3f3b2deab2e07269d0b6ca21bd8e11be485 /libavcodec/internal.h | |
| parent | 81dc6a2a3cefc1f1bbbc249052b3374e524d1ea0 (diff) | |
| download | ffmpeg-4df30f71147b7bedd4457bcfa0e4efe01085af9f.tar.gz | |
utils: Check for extradata size overflows.
Diffstat (limited to 'libavcodec/internal.h')
| -rw-r--r-- | libavcodec/internal.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/internal.h b/libavcodec/internal.h index b5a04546f3..1c2d0daaef 100644 --- a/libavcodec/internal.h +++ b/libavcodec/internal.h @@ -94,4 +94,11 @@ unsigned int avpriv_toupper4(unsigned int x); int avpriv_lock_avformat(void); int avpriv_unlock_avformat(void); +/** + * Maximum size in bytes of extradata. + * This value was chosen such that every bit of the buffer is + * addressable by a 32-bit signed integer as used by get_bits. + */ +#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE) + #endif /* AVCODEC_INTERNAL_H */ |