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path: root/libavdevice/v4l2.c
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2017-04-26Merge commit '0fea8555ae25124c21f4c4f55a5fa76e9169aa03'Clément Bœsch
* commit '0fea8555ae25124c21f4c4f55a5fa76e9169aa03': v4l2: use codec descriptors for mapping a codec name to id Merged-by: Clément Bœsch <u@pkh.me>
2017-03-22Merge commit '3a165c187da7d74f46f6c1778294e8c5a3a7151f'Clément Bœsch
* commit '3a165c187da7d74f46f6c1778294e8c5a3a7151f': v4l2: convert to stdatomic Merged-by: Clément Bœsch <u@pkh.me>
2017-01-25Cosmetics: Reindent after last commit.Carl Eugen Hoyos
2017-01-25lavd/v4l2: Avoid setting frame_size to a negative value.Carl Eugen Hoyos
2016-12-19v4l2: use codec descriptors for mapping a codec name to idAnton Khirnov
This mapping has nothing to do with decoder implementations, so using decoder names is wrong.
2016-11-18Merge commit '0b1bd1b2057d41fd0ccba7317911c484a50f9207'Hendrik Leppkes
* commit '0b1bd1b2057d41fd0ccba7317911c484a50f9207': lavd: Drop unneeded av_init_packet()s Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2016-10-02v4l2: convert to stdatomicAnton Khirnov
2016-07-14lavd: Drop unneeded av_init_packet()sVittorio Giovara
The input packet is already unref'd by the calling function.
2016-06-22Merge commit '11de006babf735aafa3462d43dd2c02bb6ac6e2f'Clément Bœsch
* commit '11de006babf735aafa3462d43dd2c02bb6ac6e2f': Combine deprecation guards where appropriate Merged-by: Clément Bœsch <clement@stupeflix.com>
2016-06-21Merge commit 'b7e64fba7f37cc0399beae844f0a5dbef9219376'Clément Bœsch
* commit 'b7e64fba7f37cc0399beae844f0a5dbef9219376': Reduce the scope of some variables Merged-by: Clément Bœsch <u@pkh.me>
2016-06-16lavd/v4l2: allow devices not implementing VIDIOC_G_PARMNiklas Söderlund
Not all v4l2 devices implement the VIDIOC_G_PARM ioctl. This patch allow ffmpeg to open such device and treat it the same as devices that do implement the ioctl but returns that it do not implement the V4L2_CAP_TIMEPERFRAME capability. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Benoit Fouet <benoit.fouet@free.fr> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-05-13Combine deprecation guards where appropriateDiego Biurrun
Some code blocks use multiple bits of deprecated API.
2016-05-11Reduce the scope of some variablesDiego Biurrun
This avoids unused variable warnings after the next version bump. Also drop a trace level av_log() call that is in the way.
2016-04-10Merge commit '9200514ad8717c63f82101dc394f4378854325bf'Derek Buitenhuis
* 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>
2016-02-23lavf: replace AVStream.codec with AVStream.codecparAnton Khirnov
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.
2016-01-12Correct two build/built typosTimothy Gu
Found-by: Leo Izen <leo.izen@gmail.com> as thebombzen on IRC Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2015-10-27Merge commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457'Hendrik Leppkes
* commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457': avpacket: Replace av_free_packet with av_packet_unref Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-10-26avpacket: Replace av_free_packet with av_packet_unrefLuca Barbato
`av_packet_unref` matches the AVFrame ref-counted API and can be used as a drop in replacement. Deprecate `av_free_packet`.
2015-10-22Merge commit 'f890677d05bc4e8b494a73373ab4cc19791bf884'Hendrik Leppkes
* commit 'f890677d05bc4e8b494a73373ab4cc19791bf884': Replace any remaining avpicture function with imgutils Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-10-21Replace any remaining avpicture function with imgutilsVittorio Giovara
avpicture_get_size() -> av_image_get_buffer_size() Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-09-12avdevice/v4l2: use AV_OPT_TYPE_BOOL for use_libv4l2 optionClément Bœsch
2015-09-05Merge commit '01bcc2d5c23fa757d163530abb396fd02f1be7c8'Hendrik Leppkes
* commit '01bcc2d5c23fa757d163530abb396fd02f1be7c8': lavc: Drop deprecated destruct_packet related functions Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-08-28lavc: Drop deprecated destruct_packet related functionsVittorio Giovara
Deprecated in 10/2012.
2015-08-04lavd/v4l2: Use AVSTREAM_PARSE_FULL_ONCE when reading a h264 stream.Carl Eugen Hoyos
Reported, debugged and tested by trac user noah. Fixes ticket #4644.
2015-07-21Merge commit '40cf1bbacc6220a0aa6bed5c331871d43f9ce370'Michael Niedermayer
* commit '40cf1bbacc6220a0aa6bed5c331871d43f9ce370': Deprecate avctx.coded_frame Conflicts: ffmpeg.c libavcodec/a64multienc.c libavcodec/asvenc.c libavcodec/cljrenc.c libavcodec/dpxenc.c libavcodec/gif.c libavcodec/mpegvideo_enc.c libavcodec/nvenc.c libavcodec/proresenc_kostya.c libavcodec/pthread_frame.c libavcodec/rawenc.c libavcodec/sunrastenc.c libavcodec/tiffenc.c libavcodec/version.h libavcodec/xbmenc.c libavcodec/xwdenc.c libavdevice/v4l2.c Merged-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-20Deprecate avctx.coded_frameVittorio Giovara
The rationale is that coded_frame was only used to communicate key_frame, pict_type and quality to the caller, as well as a few other random fields, in a non predictable, let alone consistent way. There was agreement that there was no use case for coded_frame, as it is a full-sized AVFrame container used for just 2-3 int-sized properties, which shouldn't even belong into the AVCodecContext in the first place. The appropriate AVPacket flag can be used instead of key_frame, while quality is exported with the new AVPacketSideData quality factor. There is no replacement for the other fields as they were unreliable, mishandled or just not used at all. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-05-16avdevice/v4l2: Fix vertical alignment in list_formats() outputMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-09avdevice/v4l2: Try to fix build on netbsd/openbsdMichael Niedermayer
Found-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-08lavd/v4l2: produce a 0 byte packet when a dequeued buffer is flagged with ↵Giorgio Vazzana
V4L2_BUF_FLAG_ERROR Fixes ticket #4030. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-08lavd/v4l2: fix typoGiorgio Vazzana
This was introduced in cde6e328de214ffe8387641cdc1e433a2c2150f3 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-24lavd/v4l2: print buffer flags in case of errorGiorgio Vazzana
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-06fix spelling errorsAndreas Cadhalpun
opttimizations -> optimizations grabing -> grabbing many resource -> many resources isnt -> isn't silcense -> silence Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-02Merge commit '619d5e7db88941cadb8136f805564e885c6c6434'Michael Niedermayer
* commit '619d5e7db88941cadb8136f805564e885c6c6434': v4l2: Use the codec descriptor facility Conflicts: libavdevice/v4l2.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-02v4l2: Add support for h264Luca Barbato
2015-03-02v4l2: Use the codec descriptor facilityLuca Barbato
The encoder or decoder might be disabled but the format would be supported for at least remuxing.
2015-01-11lavd/v4l2: implement list device callbackLukasz Marek
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
2014-12-12avdevice/v4l2: use av_freep() to avoid leaving stale pointers in memoryMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-11v4l2: Unify one instance of reading/storing errnoMartin Storsjö
Signed-off-by: Martin Storsjö <martin@martin.st>
2014-11-10Merge commit '09f25533a564eab743f258d168697a11122914c4'Michael Niedermayer
* commit '09f25533a564eab743f258d168697a11122914c4': v4l2: Preserve errno values Conflicts: libavdevice/v4l2.c See: 60950adc18fe145a235211e75da68ab07123fcaa Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-10Merge commit 'a1a259881fa7b23e2ffc0c2a43d4923fe42d0478'Michael Niedermayer
* commit 'a1a259881fa7b23e2ffc0c2a43d4923fe42d0478': v4l2: Use av_strerror Conflicts: libavdevice/v4l2.c See: 60950adc18fe145a235211e75da68ab07123fcaa Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-09v4l2: Preserve errno valuesLuca Barbato
av_log usually resets it.
2014-11-09v4l2: Use av_strerrorTristan Matthews
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2014-11-08Revert "v4l2: setting device parameters early"Michael Niedermayer
This reverts commit b1ad9312331759679a9c956233716a67ae681d89. Fixes Ticket #3517 Conflicts: libavdevice/v4l2.c Requested-by: Giorgio Vazzana <mywing81@gmail.com> Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-06lavd/v4l2: use pixel format variable names consistentlyGiorgio Vazzana
We now use 'pixelformat' for V4L2_PIX_FMT_* (as they do in v4l2 documentation) and 'pix_fmt' for AVPixelFormat. No functional change in the code. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-10-29lavd/v4l2: don't use avpriv_ prefix for internal functionsJames Almer
No need to keep the old symbols around until a major bump since lavd functions with the avpriv_ prefix were never exposed. Signed-off-by: James Almer <jamrial@gmail.com> Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com> Reviewed-by: Stefano Sabatini <stefasab@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-10-29Use v4l2 input format automatically if filename starts with "/dev/video"Andrey Utkin
Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
2014-09-06lavd/v4l2: introduce enqueue_buffer()Giorgio Vazzana
Additionally, make sure a buffer gets enqueued again (even in error paths) after it has been succesfully dequeued. Tested-by: Dmitry Volyntsev <xeioexception@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-05lavd/v4l2: simplify list_formats()Giorgio Vazzana
We can avoid passing file descriptor fd explicitely. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-05lavd/v4l2: simplify list_framesizes()Giorgio Vazzana
We can avoid passing file descriptor fd explicitely. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-05lavd/v4l2: remove unneeded variable in device_init()Giorgio Vazzana
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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