- 23 Feb, 2016 1 commit
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Anton Khirnov authored
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.
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- 22 May, 2014 1 commit
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Carl Eugen Hoyos authored
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- 10 Feb, 2014 1 commit
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Anton Khirnov authored
Libavformat should not make any assumptions about values returned from other libraries. This assert is easily reachable by using a non-raw codec id.
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- 05 Dec, 2012 1 commit
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Paul B Mahol authored
While here remove pts/dts code, it is apparently not needed and cause problems for demuxers that will use such function. Signed-off-by:
Paul B Mahol <onemda@gmail.com>
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- 25 Oct, 2012 2 commits
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Luca Barbato authored
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Luca Barbato authored
The code shared is not actually shared with anything else.
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- 04 Sep, 2012 1 commit
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Martin Storsjö authored
Signed-off-by:
Martin Storsjö <martin@martin.st>
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- 07 Aug, 2012 1 commit
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Anton Khirnov authored
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- 30 Jul, 2012 1 commit
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Diego Biurrun authored
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- 14 Jun, 2012 1 commit
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Michael Niedermayer authored
Signed-off-by:
Michael Niedermayer <michaelni@gmx.at>
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- 01 May, 2012 1 commit
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Reimar Döffinger authored
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>
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- 15 Feb, 2012 1 commit
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Martin Storsjö authored
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>
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- 31 Jan, 2012 1 commit
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Anton Khirnov authored
It's only used by raw demuxers for storing the codec id.
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- 12 Oct, 2011 1 commit
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Anton Khirnov authored
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- 24 Sep, 2011 1 commit
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Diego Biurrun authored
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- 17 Sep, 2011 1 commit
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Anton Khirnov authored
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- 25 May, 2011 1 commit
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Anton Khirnov authored
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- 19 Mar, 2011 1 commit
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Mans Rullgard authored
Signed-off-by:
Mans Rullgard <mans@mansr.com>
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- 28 Jan, 2011 1 commit
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Diego Elio Pettenò authored
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. (cherry picked from commit c6610a21)
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- 26 Jan, 2011 1 commit
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Diego Elio Pettenò authored
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.
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- 30 Aug, 2010 2 commits
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Aurelien Jacobs authored
Originally committed as revision 24997 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Aurelien Jacobs authored
Originally committed as revision 24993 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 25 Oct, 2012 1 commit
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Janne Grunau authored
This was previously implicitly done in ff_raw_read_header(). Fixes fate tests with pcm input.
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