FFmpeg

Commit Graph

Author	SHA1	Message	Date
Paul B Mahol	323b8c95e4	avformat: add AVFormatContext to ff_get_extradata() Needed for av_log() inside that function. Signed-off-by: Paul B Mahol <onemda@gmail.com>	9 years ago
Anton Khirnov	9200514ad8	lavf: replace AVStream.codec with AVStream.codecpar Currently, AVStream contains an embedded AVCodecContext instance, which is used by demuxers to export stream parameters to the caller and by muxers to receive stream parameters from the caller. It is also used internally as the codec context that is passed to parsers. In addition, it is also widely used by the callers as the decoding (when demuxer) or encoding (when muxing) context, though this has been officially discouraged since Libav 11. There are multiple important problems with this approach: - the fields in AVCodecContext are in general one of * stream parameters * codec options * codec state However, it's not clear which ones are which. It is consequently unclear which fields are a demuxer allowed to set or a muxer allowed to read. This leads to erratic behaviour depending on whether decoding or encoding is being performed or not (and whether it uses the AVStream embedded codec context). - various synchronization issues arising from the fact that the same context is used by several different APIs (muxers/demuxers, parsers, bitstream filters and encoders/decoders) simultaneously, with there being no clear rules for who can modify what and the different processes being typically delayed with respect to each other. - avformat_find_stream_info() making it necessary to support opening and closing a single codec context multiple times, thus complicating the semantics of freeing various allocated objects in the codec context. Those problems are resolved by replacing the AVStream embedded codec context with a newly added AVCodecParameters instance, which stores only the stream parameters exported by the demuxers or read by the muxers.	9 years ago
Vittorio Giovara	059a934806	lavc: Consistently prefix input buffer defines Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Andreas Cadhalpun	cb7c4f73e5	cafdec: free extradata before allocating it This fixes a memleak if read_kuki_chunk is executed more than once. Reviewed-by: Carl Eugen Hoyos <cehoyos@ag.or.at> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>	10 years ago
Andreas Cadhalpun	a3ede6b742	cafdec: check avio_read return value If avio_read fails, the buffer can contain uninitialized values. Reviewed-by: Carl Eugen Hoyos <cehoyos@ag.or.at> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>	10 years ago
Diego Biurrun	daf8cf358a	avformat: Don't anonymously typedef structs	10 years ago
Diego Biurrun	4d5b99dacd	caf: Give context structure a consistent name	10 years ago
Diego Biurrun	86dfcfd0e3	mov: Drop unused parameter from ff_mov_read_esds() This is cleaner and avoids an uninitialized variable warning with MSVC.	10 years ago
Paul B Mahol	90b2f31367	cafdec: check for eof in read_info_chunk() Fixes Ticket #3864 Found-by: Piotr Bandurski <ami_stuff@o2.pl> Signed-off-by: Paul B Mahol <onemda@gmail.com>	10 years ago
James Almer	d34ec64a22	replace calls to url_feof() with avio_feof() Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Diego Biurrun	942269fd00	caf: Use correct printf conversion specifiers for POSIX int types	10 years ago
Michael Niedermayer	1f36ebf63a	avformat: revert %c changes from `d92024f18f` Found-by: ubitux Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	d92024f18f	lavf: more correct printf format specifiers	11 years ago
Michael Niedermayer	773f2a563f	avformat/cafdec: use ff_get_extradata() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Paul B Mahol	a807c68253	avformat: use ff_alloc_extradata() Signed-off-by: Paul B Mahol <onemda@gmail.com>	11 years ago
Xi Wang	64b7e7dcaf	cafdec: fix overflow checking in read_header() Several compilers such as clang/icc/pathscale will optimize the check pos + size < pos (assuming size > 0) into false, since signed integer overflow is undefined behavior in C. This breaks overflow checking. Use a safe precondition check instead. Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	a202541f9b	cafdec: Check duration before use. Fix division by 0 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Justin Ruggles	bfe5454cd2	lavf: move ff_codec_get_tag() and ff_codec_get_id() definitions to internal.h	12 years ago
Michael Niedermayer	8aa6d899c0	cafdec: fix seeking with adpcm Fixes Ticket1906 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	e94f429474	cafdec: return right code if EOF is reached Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Carl Eugen Hoyos	b1e190d0fd	Correctly signal EOF when demuxing caf files.	12 years ago
Paul B Mahol	c2e2b3029e	cafdec: fix parsing of chunks which may have unused data Specification mentions 'strg', 'mark', 'regn', 'info', .. chunks to have data section size larger than chunk's current meaningful content in order to reserve room for additional data. Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Samuel Pitoiset	9afb7061f9	mov_chan: Pass a separate AVIOContext for reading This fixes crashes when called from rtpdec_qt, where AVFormatContext->pb is null, a crash present since `3bab7cd128`. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Diego Biurrun	0177b7d23a	Improve descriptiveness of a number of codec and container long names	12 years ago
Justin Ruggles	1749e12f45	cafdec: allow larger ALAC magic cookie It already skips any extra bytes at the end, and apparently there are some samples in the wild with larger 'kuki' chunks.	13 years ago
Justin Ruggles	3bab7cd128	avformat: move 'chan' tag parsing to mov_chan.c to share with the CAF demuxer	13 years ago
Justin Ruggles	c0196a14b9	caf: use int64_t for num_packets It is used to store a value read by avio_rb64().	13 years ago
Justin Ruggles	f5a9c35f88	caf: fix 'pakt' chunk parsing according to the CAF specification: "... the value for mChunkSize can be greater than the actual valid content of the packet table chunk"	13 years ago
Justin Ruggles	b0b77b9ca5	caf: support either old or new style ALAC magic kuki chunk	13 years ago
Ronald S. Bultje	67ffcb9613	lavf: Make codec_tag arrays constant Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Martin Storsjö	20234a4bd7	cosmetics: Align muxer/demuxer declarations Also add missing trailing commas, break long codec_tag lines and add spaces in codec_tag declarations. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Joakim Plate	af701d42c3	cafdec: Check return value of avio_seek and avoid modifying state if it fails Signed-off-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
Anton Khirnov	6e9651d106	lavf: remove AVFormatParameters from AVFormatContext.read_header signature	13 years ago
Paul B Mahol	f7a9b1deee	cafdec: fix regression introduced in `c7579ad8e8` Signed-off-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	c7579ad8e8	cafdec: replace deprecated get_strz()	13 years ago
Mans Rullgard	3383a53e7d	lavu: replace int/float punning functions The existing functions defined in intfloat_readwrite.[ch] are both slow and incorrect (infinities are not handled). This introduces a new header with fast, inline conversion functions using direct union punning assuming an IEEE-754 system, an assumption already made throughout the code. The one use of Intel/Motorola extended 80-bit format is replaced by simpler code sufficient under the present constraints (positive normal values). The old functions are marked deprecated and retained for compatibility. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Anton Khirnov	c3f9ebf743	lavf: make av_set_pts_info private. It's supposed to be called only from (de)muxers.	13 years ago
Carl Eugen Hoyos	4eb86d348f	Do not use strcpy for "strings" starting with \0.	13 years ago
Carl Eugen Hoyos	d6af8e68c4	Cosmetics: Reindent after last commit.	13 years ago
Carl Eugen Hoyos	80af00b4b2	Support new ALAC magic cookie in caf files.	13 years ago
Anton Khirnov	3b3bbdd3e6	lavf,lavd: replace av_new_stream->avformat_new_stream part I. Trivial replacements with sed are done in this commit: sed 's/av_new_stream(\([^)]*\), 0)/avformat_new_stream(\1, NULL)/'	13 years ago
Anton Khirnov	c10731e78b	lavf: deprecate AVFormatContext.file_size It's too unreliable to be useful. avio_size() should be called instead.	13 years ago
Joakim Plate	75f418064e	[cafdec] Check return value of avio_seek and avoid modifying state if it fails	13 years ago
Carl Eugen Hoyos	88084eecdf	Use little endian for caf codec tags.	14 years ago
Anton Khirnov	dfc2c4d900	lavf: use designated initialisers for all (de)muxers. It's more readable and less prone to breakage.	14 years ago
Mans Rullgard	ee8aecd23a	Do not include intfloat_readwrite.h in avutil.h Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Anton Khirnov	d2d67e424f	Remove all uses of now deprecated metadata functions.	14 years ago
Carl Eugen Hoyos	91b782720f	Move channel chunk reading function to isom.c. Move ff_read_chan_chunk() to isom.c and rename it as ff_mov_read_chan().	14 years ago
Carl Eugen Hoyos	8bb5d1c39c	Support channel layout when demuxing caf files.	14 years ago

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104 Commits (e558a6348ac10e74c54fb50ffd783ff9b5aec050)