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* hwcontext: add a function for opening devicesAnton Khirnov2016-05-25
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* Add release notes for 12.Anton Khirnov2016-05-19
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* avio: Allow custom IO users to get labels for the output bytestreamMartin Storsjö2016-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | This allows callers with avio write callbacks to get the bytestream positions that correspond to keyframes, suitable for live streaming. In the simplest form, a caller could expect that a header is written to the bytestream during the avformat_write_header, and the data output to the avio context during e.g. av_write_frame corresponds exactly to the current packet passed in. When combined with av_interleaved_write_frame, and with muxers that do buffering (most muxers that do some sort of fragmenting or clustering), the mapping from input data to bytestream positions is nontrivial. This allows callers to get directly information about what part of the bytestream is what, without having to resort to assumptions about the muxer behaviour. One keyframe/fragment/block can still be split into multiple (if they are larger than the aviocontext buffer), which would call the callback with e.g. AVIO_DATA_MARKER_SYNC_POINT, followed by AVIO_DATA_MARKER_UNKNOWN for the second time it is called with the following data. Signed-off-by: Martin Storsjö <martin@martin.st>
* stereo3d: Add API to get name from value or value from nameVittorio Giovara2016-05-17
| | | | Use it in av_dump_format() instead of a huge switch case.
* hwcontext: add a dxva2 implementationAnton Khirnov2016-05-17
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* Split global .gitignore file into per-directory filesDiego Biurrun2016-05-13
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* cosmetics: Fix spelling mistakesVittorio Giovara2016-05-04
| | | | Signed-off-by: Diego Biurrun <diego@biurrun.de>
* opt: Add av_opt_copy()Michael Niedermayer2016-03-24
| | | | | | | This includes documentation and other modifications by Lukasz Marek and Martin Storsjö. Signed-off-by: Martin Storsjö <martin@martin.st>
* file: Add an option for following a file that is being writtenMartin Storsjö2016-03-24
| | | | | | | | Using this requires setting the rw_timeout option to make it terminate, alternatively using the interrupt callback (if used via the API). Signed-off-by: Martin Storsjö <martin@martin.st>
* avio: Add an option 'rw_timeout'Andrey Utkin2016-03-24
| | | | | | | | | | | If set non-zero, this limits duration of the retry_transfer_wrapper() loop, thus affecting ffurl_read*(), ffurl_write(). As soon as one single byte is successfully received/transmitted, the timer restarts. This has further changes by Michael Niedermayer and Martin Storsjö. Signed-off-by: Martin Storsjö <martin@martin.st>
* lavfi: add an NVIDIA NPP-based scaling filterAnton Khirnov2016-03-23
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* lavc: introduce a new decoding/encoding API with decoupled input/outputwm42016-03-23
| | | | | | | | | | | | | | | | Until now, the decoding API was restricted to outputting 0 or 1 frames per input packet. It also enforces a somewhat rigid dataflow in general. This new API seeks to relax these restrictions by decoupling input and output. Instead of doing a single call on each decode step, which may consume the packet and may produce output, the new API requires the user to send input first, and then ask for output. For now, there are no codecs supporting this API. The API can work with codecs using the old API, and most code added here is to make them interoperate. The reverse is not possible, although for audio it might. Signed-off-by: Anton Khirnov <anton@khirnov.net>
* doc: Update paths to match new examples locationDiego Biurrun2016-03-23
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* lavc: add a new bitstream filtering APIAnton Khirnov2016-03-20
| | | | Deprecate the current bitstream filtering API.
* lavfi: generic hardware surface upload and download filtersMark Thompson2016-03-19
| | | | Signed-off-by: Anton Khirnov <anton@khirnov.net>
* lavu: VAAPI hwcontext implementationMark Thompson2016-03-19
| | | | Signed-off-by: Anton Khirnov <anton@khirnov.net>
* lavu: deprecate AV_PIX_FMT_VAAPI_*, replace with AV_PIX_FMT_VAAPIMark Thompson2016-03-19
| | | | Signed-off-by: Anton Khirnov <anton@khirnov.net>
* lavu: add a way to query hwcontext frame constraintsMark Thompson2016-03-19
| | | | Signed-off-by: Anton Khirnov <anton@khirnov.net>
* APIchanges: add missing hashes and datesAnton Khirnov2016-02-26
| | | | Also, remove a stray line (apparently fallout from conflict resolution).
* lavf: add a missing bump and APIchanges for the codecpar switchAnton Khirnov2016-02-26
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* examples/transcode_aac: convert to codecparAnton Khirnov2016-02-24
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* examples/qsvdec: convert to codecparAnton Khirnov2016-02-24
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* examples/output: convert to codecparAnton Khirnov2016-02-24
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* lavc: add a variant of av_get_audio_frame_duration working with ↵Anton Khirnov2016-02-23
| | | | AVCodecParameters
* lavc: add codec parameters APIAnton Khirnov2016-02-23
| | | | | | This API is intended to allow passing around codec parameters without using full AVCodecContext (which also contains codec options and encoder/decoder state).
* lavf: add a protocol whitelist/blacklist for file opened internallyAnton Khirnov2016-02-22
| | | | | | | | Should make the default behaviour safer for careless callers that open random untrusted files. Bug-Id: CVE-2016-1897 Bug-Id: CVE-2016-1898
* lavc: add a field for passing AVHWFramesContext to encodersAnton Khirnov2016-02-14
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* lavfi: add a filter for uploading normal frames to CUDAAnton Khirnov2016-02-14
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* lavfi: pass the hw frames context through the filter chainAnton Khirnov2016-02-14
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* hwcontext: add a CUDA implementationAnton Khirnov2016-02-14
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* pixfmt: add a CUDA hwaccelled formatAnton Khirnov2016-02-14
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* hwcontext: add a VDPAU implementationAnton Khirnov2016-02-14
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* lavu: add a framework for handling hwaccel framesAnton Khirnov2016-02-14
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* buffer: add support for pools using caller data in allocationAnton Khirnov2016-02-14
| | | | | This should allow using more complex allocators than simple malloc wrappers.
* doc: Improve the channelsplit exampleVicente Jimenez Aguilar2016-02-06
| | | | | | Expand LFE acronym (lfe.wav -> low_frecuency_effects.wav) as with others filenames Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* lavf: allow custom IO for all filesAnton Khirnov2016-01-24
| | | | | | | | | | | | | | Some (de)muxers open additional files beyond the main IO context. Currently, they call avio_open() directly, which prevents the caller from using custom IO for such streams. This commit adds callbacks to AVFormatContext that default to avio_open2()/avio_close(), but can be overridden by the caller. All muxers and demuxers using AVIO are switched to using those callbacks instead of calling avio_open()/avio_close() directly. (de)muxers that use the URLProtocol layer directly instead of AVIO remain unconverted for now. This should be fixed in later commits.
* APIchanges: Add missing av_pix_fmt_get_chroma_sub_sample entryLuca Barbato2016-01-11
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* lavc: add profiles to AVCodecDescriptorAnton Khirnov2015-12-12
| | | | | The profiles are a property of the codec, so it makes sense to export them through AVCodecDescriptors, not just the codec implementations.
* lavc: export Dirac parsing API used by the ogg demuxer as publicAnton Khirnov2015-12-06
| | | | Also, stop using AVCodecContext for storing the stream parameters.
* lavc: add a packet side data type for VBV-like parametersAnton Khirnov2015-12-06
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* lavc: add stream-global packet side dataAnton Khirnov2015-12-06
| | | | This is similar to what is done for AVStream.
* avpacket: add a function for wrapping existing data as side dataAnton Khirnov2015-12-06
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* lavc: G.723.1 encoderMohamed Naufal2015-11-30
| | | | | | Additional improvements by Michael Niedermayer <michaelni@gmx.at>. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* doc: Amend the MSYS2 DocumentationLuca Barbato2015-11-26
| | | | | Explain better which environment is discouraged and mention the shortcuts names.
* doc: Document better how to use MSYS2Luca Barbato2015-11-23
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* lavc: Deprecate avctx.rtp_callback fieldVittorio Giovara2015-11-20
| | | | | | | | | | | | | | | | | | | | | This function returns the encoded data of a frame, one slice at a time directly when that slice is encoded, instead of waiting for the full frame to be done. However this field has a debatable usefulness, since it looks like it is just a convoluted way to get data at lowest possible latency, or a somewhat hacky way to store h263 in RFC-2190 rtp encapsulation. Moreover when multi-threading is enabled (which is by default) the order of returned slices is not deterministic at all, making the use of this function not reliable at all (or at the very least, more complicated than it should be). So, for the reasons stated above, and being used by only a single encoder family (mpegvideo), this field is deemed unnecessary, overcomplicated, and not really belonging to libavcodec. Libavformat features a complete implementation of RFC-2190, for any other case. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* doc/encoders: document the QSV option mappingsAnton Khirnov2015-11-20
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* avcodec: Define side data type for fallback trackJohn Stebbins2015-11-18
| | | | | | | | | This side data type is meant to be added to AVStream side data. A fallback track indicates an alternate track to use when the current track can not be decoded for some reason. e.g. no decoder available for codec. Signed-off-by: Anton Khirnov <anton@khirnov.net>
* avformat: expose av_stream_new_side_data helperJohn Stebbins2015-11-18
| | | | Signed-off-by: Anton Khirnov <anton@khirnov.net>
* xtea: Add functions for little endian modeMartin Storsjö2015-11-13
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
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