FFmpeg

Commit Graph

Author	SHA1	Message	Date
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
Anton Khirnov	f792d3cbb8	lavf: add the notimestamps flag to the muxers missing it	11 years ago
Michael Niedermayer	78e6f83ce0	avformat/au: add assert to help source code analyzers See: CID1108585 and CID1108603 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Carl Eugen Hoyos	640c70ddc2	avformat: Use G726LE decoder for Sun AU files fixes ticket #1955 as suggested by Roman. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	ac9362c5d9	Move misplaced file author information where it belongs	12 years ago
Diego Biurrun	1ecdf8912b	avformat: av_log_ask_for_sample() ---> avpriv_request_sample()	12 years ago
Paul B Mahol	0dcfccaa69	auenc: strict check for supported codec Also check number of streams and give error message why muxing failed. This prevents muxing unsupported codec with known and supported tag. Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	10e4905dd9	auenc: remove put_au_header() and merge its code into au_write_header Such level of abstraction is pointless. Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Michael Niedermayer	2e230cf1b5	au: switch to ff_pcm_read_packet() again, after the merge This fixes G722 durations Suggested-by: durandal_1707 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Justin Ruggles	fd9147f114	au: cosmetics: pretty-print and remove pointless comments	12 years ago
Justin Ruggles	c88d245c98	au: use ff_raw_write_packet()	12 years ago
Justin Ruggles	af68a2baae	au: use %u when printing id and channels since they are unsigned	12 years ago
Justin Ruggles	c837b38dd3	au: move skipping of unused data to before parameter validation Also do not unnecessarily skip 0 bytes.	12 years ago
Justin Ruggles	2613de8805	au: do not set pkt->size directly It is already set by av_get_packet() even for partial reads.	12 years ago
Justin Ruggles	f7a3c540c5	au: remove unnecessary casts	12 years ago
Justin Ruggles	bdd00e2d1b	au: set stream start time and packet durations	12 years ago
Justin Ruggles	47d029a4c1	au: validate sample rate	12 years ago
Justin Ruggles	fb48f825e3	au: do not arbitrarily limit channel count Nothing in the AU specification sets a limit on channel count. We only need to avoid an overflow in the packet size calculation.	12 years ago
Justin Ruggles	2f8207b1c6	au: return AVERROR codes instead of -1	12 years ago
Justin Ruggles	9a7b56883d	au: set bit rate	12 years ago
Justin Ruggles	bd4cdef5a8	au: set block_align and use it in au_read_packet()	12 years ago
Justin Ruggles	3f98848d6e	au: validate bits-per-sample separately from codec tag	12 years ago
Justin Ruggles	f2214c6224	au: use ff_raw_write_packet()	12 years ago
Paul B Mahol	507956824c	auenc: do not write invalid file size Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Diego Biurrun	f3298f1299	Return proper error code after av_log_ask_for_sample()	12 years ago
Paul B Mahol	76877beada	au: return meaningful error codes Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Diego Biurrun	c35f0e8495	au: Reorder code so that both muxer and demuxer are under #ifdefs This reduces code size when either piece has been disabled.	12 years ago
Paul B Mahol	c090b5427d	audec: use ff_pcm_read_packet() Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	765debf51f	auenc: remove pointless assigment Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Justin Ruggles	bfe5454cd2	lavf: move ff_codec_get_tag() and ff_codec_get_id() definitions to internal.h	12 years ago
Carl Eugen Hoyos	95903e3cfd	Support G.722 in Sun AU.	12 years ago
Carl Eugen Hoyos	df651cf42e	Add an annotation field as required by the specification when muxing Sun AU. Reviewed-by: Paul B Mahol	12 years ago
Nicolas George	92b8c9d89e	lavf/au: check bits per coded sample. Without that, it would repeatedly produce empty packets if the codec if forced to something invalid. Fix trac ticket #1652.	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
Reimar Döffinger	8f63f241d4	Remove some useless code that duplicates av_get_packet. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Reimar Döffinger	7effbee66c	Mark truncated packets as corrupt in av_get_packet. Manually remove that flag again for formats that read an arbitrary amount of data and thus truncation is not an error. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Michael Niedermayer	0ca4414d0f	audemux: Add a sanity check for the number of channels Fixes a division by 0. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Michael Niedermayer	52fdaf27f7	audemux: Fix potential integer overflow leading to a division by 0 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	8aa57b7b5e	audemux: Check channels isnt 0 Fixes a division by 0 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	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
Martin Storsjö	167f3b8de7	libavformat: Add an ff_ prefix to some lavf internal symbols Prefix the functions/tables brktimegm, pcm_read_seek, dv_offset_reset, voc_get_packet, codec_movaudio_tags, codec_movvideo_tags. After this, lavf has no global symbols without the proper prefix. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Anton Khirnov	6e9651d106	lavf: remove AVFormatParameters from AVFormatContext.read_header signature	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
Diego Biurrun	2f5df0b12c	Replace ffmpeg references with more accurate libav* references.	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
Reimar Döffinger	eb8b325202	Support streaming .au files. FFmpeg writes data_size as AU_UNKNOWN_SIZE, make demuxer not fail when data_size is set to this value. Should fix trac issue #394. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Stefano Sabatini	daa6237229	au: reuse the result of the previous call to av_get_bits_per_sample() Avoid an unnecessary call to the function, slighlty more robust/readable.	14 years ago
ami_stuff	93263dc19e	au: add computation for duration Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>	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

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137 Commits (6f784c158bd56f2cc73354974ceebb04a40e0f52)