FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	77d9889821	avcodec/pixlet: Fix runtime error: signed integer overflow: 2147483647 + 32 cannot be represented in type 'int' Fixes: 1829/clusterfuzz-testcase-minimized-5527165321871360 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	d32ebce8fd	avcodec/pixlet: Fix reading invalid numbers of bits Fixes: asertion failure Fixes: 1664/clusterfuzz-testcase-minimized-6587801187385344 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	a453f5549a	avcodec/pixlet: Fixes: runtime error: signed integer overflow: 9203954323419769657 + 29897660706736950 cannot be represented in type 'long' Fixes: 1569/clusterfuzz-testcase-minimized-6328690508038144 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	60765cc42e	avcodec/pixlet: Fix runtime error: signed integer overflow: 436207616 * -5160230545260541 cannot be represented in type 'long' Fixes: 1462/clusterfuzz-testcase-minimized-6558894463647744 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	1f5b6c7e1e	avcodec/pixlet: Fix shift exponent 4294967268 is too large for 32-bit type 'int' Fixes: 1336/clusterfuzz-testcase-minimized-4761381930795008 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	c94d551ea7	avcodec/pixlet: Reorder rlen check This changes nothing but is nicer looking as this checks rlen Maybe this helps coverity remove CID1397743 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Clément Bœsch	549045254c	Fix all -Wformat warnings raised by DJGPP	8 years ago
Vittorio Giovara	a6b1180e39	avcodec/pixlet: fix architecture-dependent code and values The constants used in the decoder used floating point precision, and this caused different values to be generated on different architectures. So, eradicate floating point numbers and use fixed point (32.32) arithmetics everywhere, replacing constants with precomputed integer values. Signed-off-by: Vittorio Giovara <vittorio.giovara at gmail.com> Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	0fe50e56e9	avcodec/pixlet: use av_clip_uintp2_c explicitly Found-by: Clément Bœsch <u@pkh.me> Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	a340987e37	avcodec/pixlet: use av_clip_uintp2() Found-by: Clément Bœsch <u@pkh.me> Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	be46eb7101	avcodec/pixlet: clip chroma before shifting Fixes artifacts. Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	25c4035529	avcodec/pixlet: simplify lowpass_prediction() function Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	6cedd20b97	avcodec/pixlet: make sure scaling factors are not zero Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	ab31b46b89	avcodec/pixlet: avoid some overflows Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	43cd33be16	avcodec/pixlet: fix undefined behaviour in postprocess_chroma Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	51ed1a7dd4	avcodec/pixlet: check out of bounds pfx value Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
James Almer	41de965e31	avcodec/pixlet: remove unnecessary double to float conversion Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
Paul B Mahol	73651090ca	avcodec: add Apple Pixlet decoder Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago

18 Commits (ac8ad8d0981baee33bc5e9cd3b0a44643971f2e8)