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* avformat/avformat: Add FFInputFormat, hide internals of AVInputFormatAndreas Rheinhardt2024-03-071-9/+10
| | | | | | | | | | | | | | | | | | | | | This commit does for AVInputFormat what commit 59c9dc82f450638a3068deeb1db5c56f6d155752 did for AVOutputFormat: It adds a new type FFInputFormat, moves all the internals of AVInputFormat to it and adds a now reduced AVInputFormat as first member. This does not affect/improve extensibility of both public or private fields for demuxers (it is still a mess due to lavd). This is possible since 50f34172e0cca2cabc5836308ec66dbf93f5f2a3 (which removed the last usage of an internal field of AVInputFormat in fftools). (Hint: tools/probetest.c accesses the internals of FFInputFormat as well, but given that it is a testing tool this is not considered a problem.) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* Revert "all: Don't set AVClass.item_name to its default value"Anton Khirnov2024-01-201-0/+2
| | | | | | | Some callers assume that item_name is always set, so this may be considered an API break. This reverts commit 0c6203c97a99f69dbaa6e4011d48c331e1111f5e.
* all: Don't set AVClass.item_name to its default valueAndreas Rheinhardt2023-12-221-2/+0
| | | | | | | | Unnecessary since acf63d5350adeae551d412db699f8ca03f7e76b9; also avoids relocations. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avformat/rawdec: Don't include avcodec.hAndreas Rheinhardt2023-08-051-2/+0
| | | | | | Possible since 2850584876e52beaddf7a9f30e9914dad7115618. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* lavf/rawdec: stop setting codec context framerateAnton Khirnov2023-05-051-1/+0
| | | | Demuxers are not supposed to do this.
* lavf/rawdec: set avg_frame_rateAnton Khirnov2023-04-131-0/+1
| | | | | | | | | | | | Timestamps in two FATE H.264 conformance tests now start at 1 instead of 0, which also happens in some other H.264 tests before this commit and so is not a big issue. Conversely, timestamps in some HEVC conformance tests start from a smaller value now. Ideally this should be addressed later in a more general way. h264-conformance-frext-frext2_panasonic_b no longer requires -vsync passthrough.
* avformat/internal: Don't include avcodec.hAndreas Rheinhardt2022-09-261-4/+2
| | | | | | | | | | | | | | | The general demuxing API uses parsers and decoders. Therefore FFStream contains pointers to AVCodecContexts and AVCodecParserContext and lavf/internal.h includes lavc/avcodec.h. Yet actually only a few files files really use these; and it is best when this number stays small. Therefore this commit uses opaque structs in lavf/internal.h for these contexts and stops including avcodec.h. This also avoids including lavc/codec_desc.h implicitly. All other headers are implicitly included as now (mostly through codec.h). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* configure: Use a separate config_components.h header for $ALL_COMPONENTSMartin Storsjö2022-03-161-0/+2
| | | | | | | | This avoids unnecessary rebuilds of most source files if only the list of enabled components has changed, but not the other properties of the build, set in config.h. Signed-off-by: Martin Storsjö <martin@martin.st>
* avformat: Avoid allocation for AVStreamInternalAndreas Rheinhardt2021-09-171-3/+5
| | | | | | | | | | Do this by allocating AVStream together with the data that is currently in AVStreamInternal; or rather: Put AVStream at the beginning of a new structure called FFStream (which encompasses more than just the internal fields and is a proper context in its own right, hence the name) and remove AVStreamInternal altogether. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avformat/rawdec: Make ff_raw_data_read_header() staticAndreas Rheinhardt2021-09-081-2/+2
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* Remove unnecessary avassert.h inclusionsAndreas Rheinhardt2021-07-221-1/+0
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avformat/rawdec: Deduplicate AVClasses based upon ff_rawvideo_optionsAndreas Rheinhardt2021-07-081-1/+9
| | | | | | | | The child_class_next API relied on different (de)muxers to use different AVClasses; yet this API has been replaced by child_class_iterate. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avformat/rawdec: Deduplicate AVClasses based upon ff_raw_optionsAndreas Rheinhardt2021-07-081-4/+9
| | | | | | | | The child_class_next API relied on different (de)muxers to use different AVClasses; yet this API has been replaced by child_class_iterate. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avformat: move AVStream.{parser,need_parsing} to AVStreamInternalJames Almer2021-05-071-2/+2
| | | | | | | Those are private fields, no reason to have them exposed in a public header. Signed-off-by: James Almer <jamrial@gmail.com>
* avformat: Constify all muxer/demuxersAndreas Rheinhardt2021-04-271-1/+1
| | | | | | | 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>
* lavf/rawdec: Return a low score if the mjpeg probe function detected one frame.Carl Eugen Hoyos2020-12-111-0/+2
| | | | Fixes ticket #9026.
* avformat/rawdec: fix identifier namesMichael Niedermayer2020-06-061-0/+2
| | | | | | | | | Fixes: out of array access Fixes: 22686/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5121369624018944 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avformat: Forward errors where possibleAndreas Rheinhardt2019-12-121-2/+2
| | | | | | | | | | It is not uncommon to find code where the caller thinks to know better what the return value should be than the callee. E.g. something like "if (av_new_packet(pkt, size) < 0) return AVERROR(ENOMEM);". This commit changes several instances of this to instead forward the actual error. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avformat/rawdec: Make the raw packet size configurableMichael Niedermayer2019-07-171-1/+11
| | | | | | | | This allows testing parsers with a wider range of input packet sizes. Which is important and usefull for regression testing, some of our parsers in fact to not work if the packet size is changed from 1024 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* lavf: Constify the probe function argument.Carl Eugen Hoyos2019-03-211-1/+1
| | | | | Reviewed-by: Lauri Kasanen Reviewed-by: Tomas Härdin
* lavf/rawdec: Do not mark streams from raw subtitle demuxers as data streams.Carl Eugen Hoyos2018-11-281-0/+11
| | | | Improves "ffmpeg -i" output for raw dvbsub files.
* lavf/rawdec: Also probe the last byte of mjpeg streams.Carl Eugen Hoyos2018-01-211-1/+1
| | | | Fixes ticket #6957.
* lavf: make avio_read_partial() publicwm42017-09-011-1/+1
| | | | | | | | | Main use-case is proxying avio through a foreign I/O layer and a custom AVIO context, without losing latency and performance characteristics. Signed-off-by: Luca Barbato <lu_zero@gentoo.org> Merged from Libav commit 173b56218f39c64.
* avformat: Fix max value of AV_OPT_TYPE_VIDEO_RATEMichael Niedermayer2016-06-091-1/+1
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avformat/rawdec: Fix avg_framerate for h264Michael Niedermayer2016-06-071-1/+0
| | | | | | | | | | The framerate is 25 which is a fixed default and is wrong undo the 1 line change which caused this regression Only the avg_frame rate setting is removed The timebase update is not done as there was a objection (see ML) Fixes Ticket 5444 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Merge commit '9200514ad8717c63f82101dc394f4378854325bf'Derek Buitenhuis2016-04-101-8/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 Khirnov2016-02-231-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Leppkes2015-10-271-1/+1
|\| | | | | | | | | | | | | * 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 Barbato2015-10-261-1/+1
| | | | | | | | | | | | | | `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 Giovara2015-07-271-1/+1
| | | | | | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
| * latm: Do not give a score for a single instanceLuca Barbato2014-12-071-1/+1
| | | | | | | | | | Bug-Id: 773 CC: libav-stable@libav.org
* | lavf: Remove duplicated latm demuxer.Carl Eugen Hoyos2015-10-151-13/+0
| | | | | | | | The demuxer used to demux loas files for which a dedicated demuxer exists.
* | lavf/vc1dec: Autodetect raw vc-1 streams.Carl Eugen Hoyos2015-10-141-4/+0
| | | | | | | | Move the demuxer into its own file.
* | lavf/mlpdec: Simplify mlp/thd probe function.Carl Eugen Hoyos2015-10-031-60/+0
| | | | | | | | Move the demuxers into their own file.
* | lavf/shortendec: Autodetect raw Shorten streams.Carl Eugen Hoyos2015-10-031-12/+0
| | | | | | | | Move the demuxer into its own file.
* | lavf/rawdec: Autodetect raw TrueHD streams.Carl Eugen Hoyos2015-10-021-3/+16
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* | lavf/rawdec: Autodetect raw mlp streams.Carl Eugen Hoyos2015-10-011-0/+23
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* | rawdec: fix mjpeg probing buffer size checkwm42015-07-301-1/+1
| | | | | | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | rawdec: fix mjpeg probingwm42015-07-291-1/+1
| | | | | | | | | | | | | | | | There can be other headers than "Content-Type:" (in this case, a "Content-Length:" header was following), so checking for a trailing newline is wrong. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avformat/rawdec: Make ff_raw_data_read_header() non staticMichael Niedermayer2015-01-051-1/+1
| | | | | | | | | | | | This is similar to the raw video read header Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avformat/rawdec: raw formats have no timestampswm42014-11-241-4/+5
| | | | | | | | | | | | | | Some raw demuxers already had AVFMT_NOTIMESTAMPS set. Add it for all the others. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit '2d6e58497e76836604364b037df9b00ba3d75b69'Michael Niedermayer2014-10-151-0/+1
|\| | | | | | | | | | | | | | | | | | | * commit '2d6e58497e76836604364b037df9b00ba3d75b69': lavf: switch to AVCodecContext.framerate for demuxing Conflicts: libavformat/utils.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
* | avformat/rawdec: Increase probe score when "Content-Type: image/jpeg" is ↵Michael Niedermayer2014-06-101-3/+11
| | | | | | | | | | | | | | found at the file start Based-on code by: Carl Eugen Hoyos and Andrey Utkin Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avformat/rawdec: mark raw vc1 and mjpeg as having no timestampsMichael Niedermayer2014-06-101-2/+2
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avformat: add mjpeg_probe()Michael Niedermayer2014-06-091-1/+59
| | | | | | | | | | | | Fixes Ticket3679 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit 'f66d0c57b13c1b7102e1e353237af178960dd3c5'Michael Niedermayer2014-05-041-0/+2
|\| | | | | | | | | | | | | | | | | | | | | | | * commit 'f66d0c57b13c1b7102e1e353237af178960dd3c5': latm: Add a probe function Conflicts: libavformat/rawdec.c See: 47818b2a675cbb2a2fe0066c0657f3169047dd4d See: 097f668047c8dd6308217c244075b1f97d496116 Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * latm: Add a probe functionLuca Barbato2014-05-031-0/+53
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| * lavf: remove disabled FF_API_R_FRAME_RATE cruftAnton Khirnov2013-03-111-3/+0
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| * raw demuxer: initialize end of partial packetsJanne Grunau2012-12-051-0/+4
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* | lavf: data muxer and demuxer.Nicolas George2013-05-011-0/+21
| | | | | | | | | | | | Allow to use tools designed to work with demuxers, muxers and packets (for example ffmpeg itself) to process raw byte streams (like aviocat).
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