- 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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- 24 Feb, 2015 4 commits
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Martin Storsjö authored
The ugly error handling in rdt gets improved in a later commit. Signed-off-by: Martin Storsjö <martin@martin.st>
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Martin Storsjö authored
This makes it clear that the individual parsing functions can't touch the parsed out value. Signed-off-by: Martin Storsjö <martin@martin.st>
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Martin Storsjö authored
Signed-off-by: Martin Storsjö <martin@martin.st>
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Martin Storsjö authored
Signed-off-by: Martin Storsjö <martin@martin.st>
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- 09 Jul, 2014 1 commit
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Anton Khirnov authored
Use it for logging, instead of NULL or the stream codec context.
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- 21 Dec, 2012 1 commit
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Martin Storsjö authored
This allows depacketizers to figure out if packets have been lost. Signed-off-by: Martin Storsjö <martin@martin.st>
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- 12 Nov, 2012 1 commit
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Justin Ruggles authored
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- 07 Aug, 2012 1 commit
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Anton Khirnov authored
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- 08 Apr, 2012 1 commit
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Martin Storsjö authored
This avoids exposing a dummy AVStream which won't get any data and which will make avformat_find_stream_info wait for info about this stream. Signed-off-by: Martin Storsjö <martin@martin.st>
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- 28 Jan, 2012 1 commit
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Alex Converse authored
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- 23 Apr, 2011 1 commit
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Martin Storsjö authored
This avoids clashes if we internally want to override the global open function. Signed-off-by: Martin Storsjö <martin@martin.st>
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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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- 30 Jul, 2010 1 commit
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Martin Storsjö authored
Originally committed as revision 24596 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 28 Jun, 2010 2 commits
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Josh Allmann authored
Patch by Josh Allmann, joshua dot allmann at gmail Originally committed as revision 23862 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Josh Allmann authored
Patch by Josh Allmann, joshua dot allmann at gmail Originally committed as revision 23861 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 03 Apr, 2010 1 commit
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Stefano Sabatini authored
AVERROR(ENOMEM). AVERROR_NOMEM is deprecated and will be dropped at the next libavutil major bump. Originally committed as revision 22791 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 30 Mar, 2010 1 commit
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Stefano Sabatini authored
is deprecated and will be dropped at the next major bump. Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 22 Mar, 2010 1 commit
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Martin Storsjö authored
Originally committed as revision 22631 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 23 Feb, 2010 1 commit
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Ronald S. Bultje authored
Originally committed as revision 21974 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 10 Feb, 2010 1 commit
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Ronald S. Bultje authored
Originally committed as revision 21740 to svn://svn.ffmpeg.org/ffmpeg/trunk
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