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* lavf: replace AVStream.codec with AVStream.codecparAnton Khirnov2016-02-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* avpacket: Replace av_free_packet with av_packet_unrefLuca Barbato2015-10-26
| | | | | | | `av_packet_unref` matches the AVFrame ref-counted API and can be used as a drop in replacement. Deprecate `av_free_packet`.
* lavc: Consistently prefix input buffer definesVittorio Giovara2015-07-27
| | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* lavf: move internal fields from public to internal contextwm42015-02-10
| | | | | | | This is not an API change; the fields were explicitly declared private before. Signed-off-by: Anton Khirnov <anton@khirnov.net>
* vqf: Make sure the bitrate is in the valid rangeMartin Storsjö2013-09-29
| | | | | | | | Even if the sample rate is valid, an invalid bitrate could pass the mode combination test below. CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>
* vqf: Make sure sample_rate is set to a valid valueMartin Storsjö2013-09-29
| | | | | | | | | | This avoids divisions by zero later (and possibly assertions in time base scaling), since an invalid rate_flag combined with an invalid bitrate below could pass the mode combination test. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>
* avformat: Add AVPROBE_SCORE_EXTENSION define and use where appropriateDiego Biurrun2013-05-04
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* Replace all CODEC_ID_* with AV_CODEC_ID_*Anton Khirnov2012-08-07
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* vqf: set packet durationJustin Ruggles2012-03-03
| | | | | | Fixes timestamp calculation. The FATE reference is updated because timestamp calculations are now more accurate. Previous timestamps were based on average bit rate.
* vqf: set packet parameters after av_new_packet()Justin Ruggles2012-02-29
| | | | Otherwise the values are overwritten.
* lavf: remove AVFormatParameters from AVFormatContext.read_header signatureAnton Khirnov2012-01-27
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* vqf: recognize more metadata chunksPaul B Mahol2012-01-07
| | | | | | | Do not create tags for non-char chunks. Create readable tag for DSIZ chunk. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* vqf: add more known extensionsPaul B Mahol2012-01-06
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* lavf: make av_set_pts_info private.Anton Khirnov2011-11-30
| | | | It's supposed to be called only from (de)muxers.
* vqf/twinvq: pass vqf COMM chunk info in extradataJustin Ruggles2011-11-11
| | | | | | This is needed because the twinvq decoder cannot rely on bit_rate to be set. The API documentation says that bit_rate is set by libavcodec, not by the user.
* vqf: do not set bits_per_coded_sample for TwinVQ.Justin Ruggles2011-11-11
| | | | | It is a lossy codec with varying quantization, so bits_per_coded_sample is not applicable.
* lavf,lavd: replace av_new_stream->avformat_new_stream part I.Anton Khirnov2011-10-19
| | | | | Trivial replacements with sed are done in this commit: sed 's/av_new_stream(\([^)]*\), 0)/avformat_new_stream(\1, NULL)/'
* lavf: use designated initialisers for all (de)muxers.Anton Khirnov2011-07-17
| | | | It's more readable and less prone to breakage.
* Do not include mathematics.h in avutil.hMans Rullgard2011-07-03
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* Remove all uses of now deprecated metadata functions.Anton Khirnov2011-06-08
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* Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-19
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* lavf: replace avio_seek(SEEK_CUR) with avio_skip where it makes senseAnton Khirnov2011-03-16
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* avio: add avio_tell macro as a replacement for url_ftellAnton Khirnov2011-03-04
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* lavf: replace all uses of url_fskip with avio_seekAnton Khirnov2011-03-01
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* avio: avio_ prefix for url_fseekAnton Khirnov2011-03-01
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* avio: avio_ prefixes for get_* functionsAnton Khirnov2011-02-21
| | | | | | | | | | | | | | 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>
* Prefix all _demuxer, _muxer, _protocol from libavformat and libavdevice.Diego Elio Pettenò2011-01-26
| | | | | 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.
* Use a suitable timebase in VQF demuxerVitor Sessak2010-04-13
| | | | Originally committed as revision 22868 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Define AVMediaType enum, and use it instead of enum CodecType, whichStefano Sabatini2010-03-30
| | | | | | is deprecated and will be dropped at the next major bump. Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Use AV_METADATA_DONT_STRDUP* / use av_malloced metadata instead of strdupedMichael Niedermayer2009-12-13
| | | | | | | arrays of fixed length. Code from ffmbc with changes to adapt to our metadata API. Originally committed as revision 20836 to svn://svn.ffmpeg.org/ffmpeg/trunk
* VQF demuxerVitor Sessak2009-03-07
Originally committed as revision 17866 to svn://svn.ffmpeg.org/ffmpeg/trunk
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