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* avformat: Constify all muxer/demuxersAndreas Rheinhardt2021-04-27
| | | | | | | This is possible now that the next-API is gone. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> Signed-off-by: James Almer <jamrial@gmail.com>
* avformat/hnm: Only keep and parse what is needed laterAndreas Rheinhardt2020-04-02
| | | | | | | | | | | | | | | | The hnm demuxer's context struct contained lots of fields that are write-only variables or that are not used outside of parsing the header and that can therefore be replaced by local variables of hnm_read_header(). This commit removes all of these from the context; the second type has been replaced by local variables. An AVPacket (that was initialized when reading the header and for which dead code to unreference it existed in hnm_read_close()) is among the removed things. Removing it allowed to remove hnm_read_close() altogether and also removes another instance of usage of sizeof(AVPacket). Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avformat/hnm: Check for extradata allocation failureAndreas Rheinhardt2020-03-22
| | | | | | | | | and also add padding to it; moreover, don't use memcpy to write one byte to extradata. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* lavf: Constify the probe function argument.Carl Eugen Hoyos2019-03-21
| | | | | Reviewed-by: Lauri Kasanen Reviewed-by: Tomas Härdin
* Merge commit '9200514ad8717c63f82101dc394f4378854325bf'Derek Buitenhuis2016-04-10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '9200514ad8717c63f82101dc394f4378854325bf': lavf: replace AVStream.codec with AVStream.codecpar This has been a HUGE effort from: - Derek Buitenhuis <derek.buitenhuis@gmail.com> - Hendrik Leppkes <h.leppkes@gmail.com> - wm4 <nfxjfg@googlemail.com> - Clément Bœsch <clement@stupeflix.com> - James Almer <jamrial@gmail.com> - Michael Niedermayer <michael@niedermayer.cc> - Rostislav Pehlivanov <atomnuker@gmail.com> Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
| * 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.
* | Merge commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457'Hendrik Leppkes2015-10-27
|\| | | | | | | | | | | | | * commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457': avpacket: Replace av_free_packet with av_packet_unref Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
| * 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`.
* | avformat/hnm: fix decoding of 256x256 videoMichael Niedermayer2014-04-16
| | | | | | | | | | Fixes Ticket3464 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit 'd92024f18fa3d69937cb2575f3a8bf973df02430'Michael Niedermayer2014-03-11
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit 'd92024f18fa3d69937cb2575f3a8bf973df02430': lavf: more correct printf format specifiers Conflicts: libavformat/asfdec.c libavformat/cafdec.c libavformat/dxa.c libavformat/framecrcenc.c libavformat/hnm.c libavformat/iff.c libavformat/mov.c libavformat/mxfdec.c libavformat/rmdec.c libavformat/rpl.c libavformat/smacker.c libavformat/xmv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * lavf: more correct printf format specifiersDiego Biurrun2014-03-11
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* | avformat/hnm: check chunk_size == 0Michael Niedermayer2013-11-22
| | | | | | | | | | | | Fixes potential infinite loop Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit '9af7a8523a6bb517834ebed36093bdab11a8b38e'Michael Niedermayer2013-11-01
|/ | | | | | | | | | | | | | | | | | * commit '9af7a8523a6bb517834ebed36093bdab11a8b38e': HNM4/HNM4A demuxer & video decoder Conflicts: Changelog doc/general.texi libavcodec/Makefile libavcodec/allcodecs.c libavcodec/avcodec.h libavcodec/version.h libavformat/Makefile libavformat/allformats.c libavformat/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
* HNM4/HNM4A demuxer & video decoderDavid Kment2013-10-31
Signed-off-by: Diego Biurrun <diego@biurrun.de>