- 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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- 26 Oct, 2015 1 commit
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Luca Barbato authored
`av_packet_unref` matches the AVFrame ref-counted API and can be used as a drop in replacement. Deprecate `av_free_packet`.
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- 09 Apr, 2015 2 commits
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Diego Biurrun authored
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Diego Biurrun authored
Also reshuffle headers into canonical order where appropriate.
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- 03 Mar, 2014 1 commit
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Lukasz Marek authored
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
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- 24 Mar, 2013 1 commit
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Martin Storsjö authored
This is necessary after the old av_gettime in libavformat was dropped. Signed-off-by: Martin Storsjö <martin@martin.st>
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- 17 Mar, 2013 1 commit
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Paul B Mahol authored
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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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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- 27 Jan, 2012 1 commit
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Anton Khirnov authored
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- 30 Nov, 2011 1 commit
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Anton Khirnov authored
It's supposed to be called only from (de)muxers.
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- 19 Oct, 2011 1 commit
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Anton Khirnov authored
Trivial replacements with sed are done in this commit: sed 's/av_new_stream(\([^)]*\), 0)/avformat_new_stream(\1, NULL)/'
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- 12 Oct, 2011 1 commit
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Anton Khirnov authored
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- 15 Aug, 2011 1 commit
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Anton Khirnov authored
AVFormatParameters are converted into corresponding private options in av_open_input_file/stream() compat wrappers, so accessing them from demuxers is redundant.
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- 25 May, 2011 2 commits
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Anton Khirnov authored
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Anton Khirnov authored
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- 28 Mar, 2011 1 commit
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Stefano Sabatini authored
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- 27 Mar, 2011 1 commit
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Brad authored
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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