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
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
Justin Ruggles	f7a3c540c5	au: remove unnecessary casts	12 years ago
Justin Ruggles	2f8207b1c6	au: return AVERROR codes instead of -1	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	bdd00e2d1b	au: set stream start time and packet durations	12 years ago
Justin Ruggles	af68a2baae	au: use %u when printing id and channels since they are unsigned	12 years ago
Justin Ruggles	47d029a4c1	au: validate sample rate	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	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	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	bd4cdef5a8	au: set block_align and use it in au_read_packet()	12 years ago
Justin Ruggles	9a7b56883d	au: set bit rate	12 years ago
Justin Ruggles	3f98848d6e	au: validate bits-per-sample separately from codec tag	12 years ago
Diego Biurrun	f3298f1299	Return proper error code after av_log_ask_for_sample()	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
Justin Ruggles	bfe5454cd2	lavf: move ff_codec_get_tag() and ff_codec_get_id() definitions to internal.h	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
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
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
Anton Khirnov	dfc2c4d900	lavf: use designated initialisers for all (de)muxers. It's more readable and less prone to breakage.	14 years ago
Anton Khirnov	8978fedaee	avio: introduce an AVIOContext.seekable field Use it instead of url_is_streamed and AVIOContext.is_streamed.	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Anton Khirnov	b7f2fdde74	avio: rename put_flush_packet -> avio_flush Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	45a8a02a41	lavf: replace avio_seek(SEEK_CUR) with avio_skip where it makes sense Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	a2704c9712	avio: add avio_tell macro as a replacement for url_ftell Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	6b4aa5dac8	avio: avio_ prefix for url_fseek Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	0abdb29317	lavf: use a new ffio_wfourcc macro instead of put_tag() where possible Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	77eb5504d3	avio: avio: avio_ prefixes for put_* functions In the name of consistency: put_byte -> avio_w8 put_<type> -> avio_w<type> put_buffer -> avio_write put_nbyte will be made private put_tag will be merged with avio_put_str Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	b7effd4e83	avio: avio_ prefixes for get_* functions In the name of consistency: get_byte -> avio_r8 get_<type> -> avio_r<type> get_buffer -> avio_read get_partial_buffer will be made private later get_strz is left out becase I want to change it later to return something useful. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	ae628ec1fd	avio: rename ByteIOContext to AVIOContext. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Diego Elio Pettenò	c6610a216e	Prefix all _demuxer, _muxer, _protocol from libavformat and libavdevice. This also lists the objects from those two libraries as internal (by adding the ff_ prefix) so that they can then be hidden via linker scripts.	14 years ago
Aurelien Jacobs	e94204dfd8	move pcm demuxers to their own file Originally committed as revision 24993 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Peter Ross	0a624147c3	Prevent au_read_packet() looping endlessly when .au file contains unsupported codec type. Originally committed as revision 23392 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Stefano Sabatini	72415b2adb	Define AVMediaType enum, and use it instead of enum CodecType, which is deprecated and will be dropped at the next major bump. Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Jai Menon	4da715cb24	AU : demuxed packet size should be sample size aligned. Fixes issue 1593. Originally committed as revision 20758 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Carl Eugen Hoyos	bc2d2a07d5	Make AVCodecTag.id enum CodecID and use CODEC_ID_NONE instead of 0. Originally committed as revision 20250 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	a7a9dd0eb6	Return special EOF checking for aiff and au demuxers, the check was at the wrong place, causing an empty packet to be read before EOF was detected and the eof detection is already now handled by av_get_packet anyway. Originally committed as revision 20138 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	b46c98bf66	au demuxer: pass av_get_packet error on unchanged instead of converting to AVERROR(EIO). Originally committed as revision 20127 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Daniel Verkamp	1a40491ef2	Add ff_ prefixes to exported symbols in libavformat/riff.h. patch by Daniel Verkamp, aniel drv nu Originally committed as revision 19254 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	406792e7b0	cosmetics: Remove pointless period after copyright statement non-sentences. Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

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93 Commits (ec9f04423b82afa323e90f5b2c677be74302c1fd)