FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	20f9727018	avcodec/codec_internal: Add FFCodec, hide internal part of AVCodec Up until now, codec.h contains both public and private parts of AVCodec. This exposes the internals of AVCodec to users and leads them into the temptation of actually using them and forces us to forward-declare structures and types that users can't use at all. This commit changes this by adding a new structure FFCodec to codec_internal.h that extends AVCodec, i.e. contains the public AVCodec as first member; the private fields of AVCodec are moved to this structure, leaving codec.h clean. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	3 years ago
Andreas Rheinhardt	a688f3c13c	avcodec/internal: Move FF_CODEC_CAP_* to a new header codec_internal.h Also move FF_CODEC_TAGS_END as well as struct AVCodecDefault. This reduces the amount of files that have to include internal.h (which comes with quite a lot of indirect inclusions), as e.g. most encoders don't need it. It is furthemore in preparation for moving the private part of AVCodec out of the public codec.h. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	3 years ago
Andreas Rheinhardt	21c41237d2	avcodec/4xm: Cleanup generically on init failure Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	3 years ago
Andreas Rheinhardt	2648df16c6	avcodec/4xm: Make decoder init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	a247ac640d	avcodec: Constify AVCodecs Given that the AVCodec.next pointer has now been removed, most of the AVCodecs are not modified at all any more and can therefore be made const (as this patch does); the only exceptions are the very few codecs for external libraries that have a init_static_data callback. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>	4 years ago
Michael Niedermayer	b87781649e	avcodec/4xm: Check pre_gb in decode_i_block() Fixes: Timeout Fixes: 31257/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5150866229297152 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	4 years ago
Anton Khirnov	e15371061d	lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump They are not properly namespaced and not intended for public use.	4 years ago
Michael Niedermayer	87ddf9f1ef	avcodec/4xm: Check index in decode_i_block() also in the path where its not used. Fixes: Infinite loop Fixes: signed integer overflow: 2147483644 + 16 cannot be represented in type 'int' Fixes: 16169/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5662570416963584 Fixes: 16782/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5743163859271680 Fixes: 17641/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5711603562971136 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>	5 years ago
Michael Niedermayer	8f92eb05e0	avcodec/4xm: Check for end of input in decode_p_block() Fixes: Timeout (81sec -> 0.2sec) Fixes: 16169/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5662570416963584 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>	5 years ago
Michael Niedermayer	2bbea155bf	avcodec/4xm: Fix signed integer overflows in idct() Fixes: signed integer overflow: 20242 * 121095 cannot be represented in type 'int' Fixes: 15310/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5737051745419264 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	5 years ago
Michael Niedermayer	55557c6124	avcodec/4xm: Fix vlc memleak Fixes: memleak Fixes: 15297/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5746203548975104 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	5 years ago
Michael Niedermayer	07607a1db8	avcodec/4xm: Fix returned error codes Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Ramiro Polla	4d34205bec	avcodec/4xm: fix block alignment blockdsp requires 32 byte alignment. Signed-off-by: James Almer <jamrial@gmail.com>	6 years ago
Luca Barbato	73fc82f343	vlc: Add header #include when the types are used Do not rely on indirectly including it from bitstream.h. Signed-off-by: Diego Biurrun <diego@biurrun.de>	8 years ago
Diego Biurrun	dcc39ee10e	lavc: Remove deprecated XvMC support hacks Deprecated in 11/2013.	8 years ago
Diego Biurrun	a25dac976a	Use bitstream_init8() where appropriate	8 years ago
Alexandra Hájková	ed006ae4e2	4xm: Convert to the new bitstream reader Signed-off-by: Anton Khirnov <anton@khirnov.net>	8 years ago
Andreas Cadhalpun	1e660fe88d	doc: fix spelling errors Reviewed-by: Lou Logan <lou@lrcd.com> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>	8 years ago
Vittorio Giovara	059a934806	lavc: Consistently prefix input buffer defines Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	def97856de	lavc: AV-prefix all codec capabilities Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	7c6eb0a1b7	lavc: AV-prefix all codec flags Convert doxygen to multiline and express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	4001fc4267	avcodec/4xm: remove duplicate assert Found-by: carl Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	68a35473ed	4xm: more thorought check for negative index and negative shift CC: libav-stable@libav.org Bug-Id: CID 1087094	10 years ago
Vittorio Giovara	0e1ebfebc8	4xm: drop unnecessary check data_size is always >= 0 in this case. CC: libav-stable@libav.org Bug-Id: CID 1238788	10 years ago
Michael Niedermayer	544380aaf0	avcodec/4xm: Make src of decode_p_block() const Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Diego Biurrun	c67b449beb	dsputil: Split bswap*_buf() off into a separate context	11 years ago
Diego Biurrun	e74433a8e6	dsputil: Split clear_block/fill_block off into a separate context	11 years ago
Diego Biurrun	cc8163e1a3	avcodec: more correct printf specifiers	11 years ago
Anton Khirnov	fe80fa53bc	4xm: replace forcing EMU_EDGE by a copy The decoder currently sets CODEC_FLAG_EMU_EDGE and relies on get_buffer2() to always provide buffers with linesize == 2 * width. This is wrong, since we place no such restriction on get_buffer2() implementations. Fix this by decoding into internal buffers and copying them to output frames. Since this is a very obscure decoder, the performance hit should not be an issue.	11 years ago
Anton Khirnov	fffca3d278	4xm: return a proper error code.	11 years ago
Paul B Mahol	2820562935	avcodec/4xm: use av_fast_padded_malloc() Signed-off-by: Paul B Mahol <onemda@gmail.com>	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Luca Barbato	2f034f255c	4xm: Reject not a multiple of 16 dimension Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	11 years ago
Michael Niedermayer	68efb1d60a	4xm: Dont ignore dc run errors Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	13c56e9a9c	4xm: check for invalid zero ac coeffs Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Luca Barbato	59d7bb99b6	4xm: check bitstream_size boundary before using it Prevent buffer overread. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	fbd0dacc8d	4xm: refactor decode_p_block Directly return from code 1, 2 and 6 codepaths and simplify the remaining one to have a single overflow check and a single call to mcdc.	12 years ago
Luca Barbato	94aefb1932	4xm: do not overread the source buffer in decode_p_block Check for out of picture macroblocks before calling mcdc. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	be373cb50d	4xm: do not overread the prestream buffer Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	de2e5777e2	4xm: validate the buffer size before parsing it Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	145023f572	4xm: reject frames not compatible with the declared version Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	1f0c607560	4xm: drop pointless assert Make sure the value of wlog2 is always between 0 and 3.	12 years ago
Luca Barbato	b8b809908e	4xm: forward errors from decode_p_block Partially mitigate out of memory writes. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	12 years ago
Luca Barbato	50ec1db62d	4xm: fold last_picture lazy allocation in decode_p_frame	12 years ago
Luca Barbato	e7a44f87d0	4xm: refactor fourxm_read_header Split sound and video tag parsing in separate functions.	12 years ago
Luca Barbato	08859d19b4	4xm: use the correct logging context	12 years ago
Diego Biurrun	2832ea26f3	Remove commented-out debug #define cruft	12 years ago
Clément Bœsch	1ec94b0f06	lavc: factorize ff_{thread_,re,}get_buffer error messages. Coccinelle profile used: @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_get_buffer(ctx, f, flags)) < 0) + return r; @@ expression r, ctx, f, loglevel, str; @@ -if ((r = ff_reget_buffer(ctx, f)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_reget_buffer(ctx, f)) < 0) + return r; @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) + return r; ...along with some manual patches for the remaining ones.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Anton Khirnov	8097fc9a2d	4xm: check the return value of read_huffman_tables(). CC:libav-stable@libav.org	12 years ago

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214 Commits (fb59a42ef977dd91085a602f10c9c82f88d072e5)