FFmpeg

Commit Graph

Author	SHA1	Message	Date
Anton Khirnov	0b33310cd0	lavc/bitstream: avoid UB in bits_{read,peek}_signed(0) bits__signed(0) will currently invoke an undefined shift by 8 sizeof(int). Add bits__signed_nz() that only works for n>0, analogous to bits_read_nz(). Add an explicit check for n=0 in bits__signed(). Found-by: James Almer	2 years ago
Anton Khirnov	fcd557a2c2	lavc/get_bits: add a compat wrapper for the cached bitstream reader Use that instead of the merged version.	2 years ago
Martijn van Beurden	909cfdc205	libavcodec/flacdec: Implement decoding of 32 bit-per-sample PCM Add decoding of FLAC files coding for 32 bit-per-sample PCM to libavcodec.	2 years ago
Anton Khirnov	c9a2506de9	get_bits: move check_marker() to mpegvideodec.h It is only used by mpegvideo-based decoders - specifically mpeg12, intelh263, ituh263, mpeg4video.	2 years ago
Andreas Rheinhardt	2d764069be	avcodec/vlc: Use structure instead of VLC_TYPE array as VLC element In C, qualifiers for arrays are broken: const VLC_TYPE (foo)[2] is a pointer to an array of two const VLC_TYPE elements and unfortunately this is not compatible with a pointer to a const array of two VLC_TYPE, because the latter does not exist as array types are never qualified (the qualifier applies to the base type instead). This is the reason why get_vlc2() doesn't accept a const VLC table despite not modifying the table at all, as there is no automatic conversion from VLC_TYPE ()[2] to const VLC_TYPE (*)[2]. Fix this by using a structure VLCElem for the VLC table. This also has the advantage of making it clear which element is which. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Anton Khirnov	c28823ff97	lavc/get_bits: avoid avcodec.h dependency Include only defs.h, needed for AV_INPUT_BUFFER_PADDING_SIZE.	3 years ago
Ramiro Polla	c2b540d0c7	avcodec/get_bits: cosmetics Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>	5 years ago
Paul B Mahol	78c8a76536	avcodec/get_bits: unbreak get_bits_le() with cached reader	6 years ago
Marton Balint	694d9d5368	avcodec/get_bits: add assertion to limit ouptut value of get_bits Should fix the following Coverity false positives: Coverity CID #1415651. Coverity CID #1420392. Coverity CID #1420473. Coverity CID #1433770. Coverity CID #1435320. Coverity CID #1439573. Coverity CID #1439580. Coverity CID #1439588. Signed-off-by: Marton Balint <cus@passwd.hu>	6 years ago
Marton Balint	902e9334aa	avcodec/get_bits: use unsigned integers in show_bits and get_bits The return value is also unsigned. Signed-off-by: Marton Balint <cus@passwd.hu>	6 years ago
James Almer	9305bdc68f	avcodec/get_bits: actually make cached reader correctly disabled	6 years ago
Paul B Mahol	ca079b0954	avcodec/get_bits: add cached bitstream reader Signed-off-by: Paul B Mahol <onemda@gmail.com>	6 years ago
Michael Niedermayer	6261ef4251	avcodec/get_bits: Document skip_bits_long() Found-by: Kieran Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	e529fe7633	avcodec/get_bits: Make sure the input bitstream with padding can be addressed Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	4a94ff4ccd	avcodec/get_bits: Document the return code of get_vlc2() Found-by: kierank Reviewed-by: Kieran Kunhya <kieran618@googlemail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Steinar H. Gunderson	2a293ec7ac	avcodec: add Newtek SpeedHQ decoder This decoder can decode all existing SpeedHQ formats (SHQ0–5, 7, and 9), including correct decoding of the alpha channel. 1080p is decoded in 142 fps on one core of my i7-4600U (2.1 GHz Haswell), about evenly split between bitstream reader and IDCT. There is currently no attempt at slice or frame threading, even though the format trivially supports both. NewTek very helpfully provided a full set of SHQ samples, as well as source code for an SHQ2 encoder (not included) and assistance with understanding some details of the format.	8 years ago
Paul B Mahol	14090b7050	avcodec/get_bits: add av_assert2 to get_bits_long() Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Michael Niedermayer	c72fa43234	avcodec/get_bits: Fix get_sbits_long(0) Fixes undefined behavior Fixes: 640889-media Found-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Clément Bœsch	6c98398b0b	lavc/get_bits: add a logging context to check_marker() Based on `d338abb664`	9 years ago
Diego Biurrun	52567e8198	get_bits: Drop some TRACE-level debug code It will not be provided by the new bit reader anyway.	9 years ago
Alexandra Hájková	ffa190d047	Move VLC and RL_VLC_ELEM structure definitions to a separate header Use the newly created vlc.h directly instead of including get_bits when needed. The VLC and RL_VLC_ELEM structures are independent from the bitreader. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	9 years ago
Alexandra Hájková	e4b38878da	Move check_marker() from get_bits to mpeg4videodec MPEG-4 is the only decoder which uses check_marker(). Signed-off-by: Anton Khirnov <anton@khirnov.net>	9 years ago
Vittorio Giovara	41ed7ab45f	cosmetics: Fix spelling mistakes Signed-off-by: Diego Biurrun <diego@biurrun.de>	9 years ago
Andreas Cadhalpun	62825236db	lavc: Add get_bitsz() get_bit variant supporting 0-bits reads. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	9 years ago
Kieran Kunhya	46350db737	get_bits: Support max_depth > 2 in GET_RL_VLC_INTERNAL	9 years ago
Andreas Cadhalpun	713654d9d3	get_bits: add get_bitsz for reading 0-25 bits This can be used to simplify code in a couple of places. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>	9 years ago
Kieran Kunhya	906c0b7716	get_bits: Support max_depth > 2 in GET_RL_VLC_INTERNAL	9 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	6a85dfc830	lavc: Replace av_dlog and tprintf with internal macros	10 years ago
Michael Niedermayer	343f34c0b8	avcodec/get_bits: print details of the location of the missing bit in check_marker() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	351d0f8b7a	get_bits: remove unused assignment Bug-Id: CID 1238816	10 years ago
Diego Biurrun	b574e1e97e	get_bits: Add OPEN_READER macro variant w/o size_plus8 This avoids a trillion warnings from MSVC.	10 years ago
Diego Biurrun	91d305790e	get_bits: Rename HAVE_BITS_REMAINING --> BITS_AVAILABLE The HAVE_ prefix is reserved for macros set by configure.	10 years ago
Michael Niedermayer	11512d70fa	avcodec/get_bits: add BITS_LEFT() for finding the bits left with an opened reader Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Timothy Gu	ea6178fff8	get_bits: remove unused assignment Signed-off-by: Timothy Gu <timothygu99@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	e6f9fc4adc	avcodec/bitstream: try to make vlc init code inherently thread safe also remove spinlock, it doesnt work on AIX Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Matthew Lindner	b372f67342	avcodec: better level/index printing	11 years ago
Michael Niedermayer	6df33c4926	avcodec: include GET_RL_VLC() in trace output Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Reimar Döffinger	8cbf0827e1	Various small spelling fixes. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	11 years ago
Michael Niedermayer	44e8e82d34	avcodec/get_bits: add skip_1stop_8data_bits Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	54197c7aae	skip_bits: dont call UPDATE_CACHE UPDATE_CACHE isnt needed and can cause segfaults Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	121fc05b4d	avcodec/get_bits: place volatile at the right spot Should fix Ticket2825 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	43411f416f	avcodec/get_bits: init_state is used for thread sync, make it volatile Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	6af8326354	avcodec/ff_init_vlc_sparse: use a spinlock for thread sync Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Paul B Mahol	48f2750de8	get_bits: add get_bits_le() Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Michael Niedermayer	ff130d7363	get_xbits: assert validity of the number of bits similar is already done in the other get_bits() functions Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Ronald S. Bultje	9918f57dcf	get_bits: Return pointer to buffer that is the result of the alignment This allows more transparent mixing of get_bits and whole-byte access without having to touch get_bits internals. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Ronald S. Bultje	fd6a021d8e	get_bits: return pointer to buffer that is the result of the alignment. This allows more transparent mixing of get_bits and whole-byte access without having to touch get_bits internals. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	4af5310d29	get_bits/put_bits: K&R formatting cosmetics Signed-off-by: Diego Biurrun <diego@biurrun.de>	12 years ago
Luca Barbato	4603ec85ed	get_bits: change the failure condition in init_get_bits Too much code relies in having init_get_bits fed with a valid buffer and set its dimension to 0. Check for NULL buffer instead.	12 years ago

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127 Commits (66175c2dca357bc6c856249c934f96b9ca023aa4)