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* libavutil/hwcontext_qsv: add usage child_device_type argument to explicitly ↵Artem Galin2021-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | select d3d11va/DX11 device type UPD: Rebase of last patch set over current master and use DX9 as default device type. Makes selection of dxva2/DX9 device type by default as before with explicit d3d11va/DX11 usage to cover more HW configurations. Added warning message to expect changing default device type in the future. Fixes TGL / AV1 decode as requires DX11 with explicit DX11 type selection. Add headless/multi adapter support and fixes: https://trac.ffmpeg.org/ticket/7511 https://trac.ffmpeg.org/ticket/6827 http://ffmpeg.org/pipermail/ffmpeg-trac/2017-November/041901.html https://trac.ffmpeg.org/ticket/7933 https://github.com/InitialForce/FFmpeg/commit/338fbcd5bba1de0e1b3e3bad8985eee2fdfbeca1 https://github.com/jellyfin/jellyfin/issues/2626#issuecomment-602153952 Any other fixes are welcome including OpenCL interop patch since I don't have proper setup to validate this use case Decoding, encoding, transcoding have been validated. child_device_type option is responsible for d3d11va/dxva2 device selection Usage examples: DirectX 11: -init_hw_device qsv:hw,child_device_type=d3d11va -init_hw_device qsv:hw,child_device_type=d3d11va,child_device=0 OR -init_hw_device d3d11va=dx -init_hw_device qsv@dx DirectX 9 is still supported but requires explicit selection: -init_hw_device qsv:hw,child_device_type=dxva2 OR -init_hw_device dxva2=dx -init_hw_device qsv@dx Signed-off-by: Artem Galin <artem.galin@intel.com>
* ffmpeg: add option readrateGyan Doshi2021-07-17
| | | | | | | Allows to read inputs at arbitrary rates. -re is equivalent to -readrate 1 Tested with -copyts {+ start_at_zero}, -ss, streamcopied & decoded streams.
* fftools/ffmpeg: Add new variant source_no_drop to the force_key_frames optionKeyun Tong2021-07-16
| | | | Suggested-By: ffmpeg@fb.com
* ffmpeg: add option recast_mediaGyan Doshi2021-07-11
| | | | | Allows forcing decoders of different media type. Needed to decode media data muxed as data streams.
* doc/ffmpeg: document reinit_filterGyan Doshi2021-06-10
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* doc/ffmpeg: clarify what -hwaccels list indicatesGyan Doshi2021-04-03
| | | | Fixes #8204
* doc/ffmpeg: document parameters set by -targetGyan Doshi2021-03-19
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* ffmpeg: add -fpsmax to clamp output framerateGyan Doshi2021-02-05
| | | | Useful when encoding in batch or with aberrant inputs.
* doc/ffmpeg: document apad optionGyan Doshi2021-01-31
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* doc/ffmpeg: document adrift_thresholdGyan Doshi2021-01-23
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* doc/ffmpeg: restore location of stray passageGyan Doshi2021-01-23
| | | | | Added in 88fc1438c69, this passage was separated from its original context over the years with unrelated entries sandwiched in between.
* doc/ffmpeg: document max_error_rateGyan Doshi2021-01-10
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* ffmpeg: add option stats_periodGyan Doshi2020-12-23
| | | | | | | | | At present, progress stats are updated at a hardcoded interval of half a second. For long processes, this can lead to bloated logs and progress reports. Users can now set a custom period using option -stats_period Default is kept at 0.5 seconds.
* ffmpeg: add a data size threshold for muxing queue sizeJan Ekström2020-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | This way the old max queue size limit based behavior for streams where each individual packet is large is kept, while for smaller streams more packets can be buffered (current default is at 50 megabytes per stream). For some explanation, by default ffmpeg copies packets from before the appointed seek point/start time and puts them into the local muxing queue. Before, it getting utilized was much less likely since as soon as the filter chain was initialized, the encoder (and thus output stream) was also initialized. Now, since we will be pushing the encoder initialization to when the first AVFrame is decoded and filtered - which only happens after the exact seek point is hit as packets are ignored until then - this queue will be seeing much more usage. In more layman's terms, this attempts to fix cases such as where: - seek point ends up being 5 seconds before requested time. - audio is set to copy, and thus immediately begins filling the muxing queue. - video is being encoded, and thus all received packets are skipped until the requested time is hit.
* doc: include general in *-all pages.Nicolas George2020-09-08
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* ffmpeg: add auto_conversion_filters option.Nicolas George2020-09-08
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* fftools/ffmpeg: make specifying thread_queue_size turn on threaded inputMarton Balint2020-07-29
| | | | | | | | Threaded input can increase smoothness of e.g. x11grab significantly. Before this patch, in order to activate threaded input the user had to specify a "dummy" additional input, with this change it is no longer required. Signed-off-by: Marton Balint <cus@passwd.hu>
* fftools/ffmpeg_filter: add -autoscale to disable/enable the default scaleLinjie Fu2020-06-18
| | | | | | | | | | | | | | | | | | | | | Currently, ffmpeg inserts scale filter by default in the filter graph to force the whole decoded stream to scale into the same size with the first frame. It's not quite make sense in resolution changing cases if user wants the rawvideo without any scale. Using autoscale/noautoscale as an output option to indicate whether auto inserting the scale filter in the filter graph: -noautoscale or -autoscale 0: disable the default auto scale filter inserting. ffmpeg -y -i input.mp4 out1.yuv -noautoscale out2.yuv -autoscale 0 out3.yuv Update docs. Suggested-by: Mark Thompson <sw@jkqxz.net> Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com> Signed-off-by: Linjie Fu <linjie.fu@intel.com>
* doc/ffmpeg: remove reference to deprecated optionMoritz Barsnick2020-06-09
| | | | | | | | | The "-deinterlace" was deprecated since d7edd35, over eight years ago. Refer to deinterlacing filters instead. Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
* fftools/ffmpeg: add new abort_on flag which aborts if there is a stream ↵Marton Balint2020-05-26
| | | | | | which received no packets Signed-off-by: Marton Balint <cus@passwd.hu>
* hwcontext_vulkan: let users enable device and instance extensions using optionsLynne2020-05-10
| | | | | | Also documents all options supported by the hwdevice. This lets users enable all extensions they need without writing their own instance initialization code.
* doc/ffmpeg: Document device selection for VulkanMark Thompson2020-02-09
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* doc/ffmpeg: document value source for -force_key_framesGyan Doshi2020-01-05
| | | | Also clarify behaviour in case of specified timestamps
* doc/ffmpeg: -timelimit is in user timeLou Logan2019-09-27
| | | | | Signed-off-by: Lou Logan <lou@lrcd.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* doc/ffmpeg: Document dts_error_threshold optionJun Zhao2019-08-08
| | | | | | Document dts_error_threshold option. Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
* doc/ffmpeg: muxdelay and muxpreload are output optionsAman Gupta2019-03-20
| | | | Signed-off-by: Aman Gupta <aman@tmm1.net>
* doc/ffmpeg: remove entry for -loop_outputGyan Doshi2019-03-20
| | | | Option doesn't exist .. hasn't for a few years now.
* doc/ffmpeg: add entry for itsscaleGyan Doshi2019-03-16
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* doc/ffmpeg: clarify behaviour of -discardGyan Doshi2019-01-04
| | | | | Discarding all frames is universally supported as it happens in fftools whereas selective discarding relies on the demuxer.
* doc/ffmpeg: update entry for stream disable optionsGyan Doshi2019-01-04
| | | | -vn/-an/-sn/-dn can now be used to block input streams from a file.
* ffmpeg: mark sseof as an input-only optionGyan Doshi2018-06-09
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* doc/ffmpeg: rewrite Stream Selection chapterGyan Doshi2018-06-02
| | | | Flesh out with details and examples to show quirks and limitations.
* doc/ffmpeg: remove non-existent vdt optionGyan Doshi2018-06-01
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* doc/ffmpeg: update disposition valuesGyan Doshi2018-05-29
| | | | Thumbnail example added. Avoid transcoding in older examples.
* doc/ffmpeg - update benchmark option readout detailsGyan Doshi2018-04-28
| | | | -benchmark and -benchmark_all now show real, system and user time
* doc/ffmpeg: document -dn optionLou Logan2018-02-21
| | | | | | | | Also mention -map in the -vn, -an, and -sn options. Fixes #7036. Signed-off-by: Lou Logan <lou@lrcd.com>
* Remove the ffserver programRostislav Pehlivanov2018-01-06
| | | | Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
* doc/ffmpeg: Document opencl for -init_hw_deviceMark Thompson2017-11-26
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* doc: Add FAQs about running in background (rev 2)Jim DeLaHunt2017-11-22
| | | | | | | | | | | | | | | | Add two FAQs about running FFmpeg in the background. The first explains the use of the -nostdin option in a straightforward way. Text revised based on review. The second FAQ starts from a confusing error message, and leads to the solution, use of the -nostdin option. The purpose of the second FAQ is to attract web searches from people having the problem, and offer them a solution. Add an anchor to the Main Options section of the ffmpeg documentation, so that the FAQs can link directly there. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* ffmpeg: Allow "-to" on input files in addition to "-t"Vitaly _Vi Shukela2017-11-19
| | | | | | | | | | | | | | For some strange reason "-t" option was only implemented for input files while both "-t" and "-to" were available for use for output files. This made extracting a range from input file inconvenient. This patch enables -to option for input so one can do ffmpeg -ss 1:23:20 -to 1:27:22.3 -i myinput.mkv ... Signed-off-by: Vitaly _Vi Shukela <vi0oss@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* ffmpeg: add -bitexact flag to simplify enabling bitexact mode in (de)muxer ↵Michael Niedermayer2017-10-23
| | | | | | and (de/en)coder Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* lavc: drop VDAClément Bœsch2017-10-23
| | | | | Deprecated (aka removed) in OSX 10.11, and we have a replacement for it (VideoToolbox).
* Fix several typosLou Logan2017-09-21
| | | | | | | "apix_fmts" found by Marc Péchaud. "speedloss" found by Mikhail V. Signed-off-by: Lou Logan <lou@lrcd.com>
* ffmpeg options: Enable trailing ? for map_channelpkviet2017-08-25
| | | | | | | | | | | The -map option allows for a trailing ? so that an error is not thrown if the input stream does not exist. This capability is extended to the map_channel option. This allows a ffmpeg command not to break if an input channel does not exist, which can be of use (for instance, scripts processing audio channels with sources having unset number of audio channels). Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* ffmpeg: Support setting the hardware device to use when filteringMark Thompson2017-06-14
| | | | | | | | This only supports one device globally, but more can be used by passing them with input streams in hw_frames_ctx or by deriving new devices inside a filter graph with hwmap. (cherry picked from commit e669db76108de8d7a36c2274c99da82cc94d1dd1)
* ffmpeg: Document the -init_hw_device optionMark Thompson2017-06-14
| | | | (cherry picked from commit 303fadf5963e01b8edf4ba2701e45f7e9e586aeb)
* ffmpeg: add enc_time_base optionerankor2017-05-10
| | | | | | | | | | | add a per-stream option for setting the encoder timebase. the following values are allowed: 0 - for video, use 1/frame_rate, for audio use 1/sample_rate (this is the default) -1 - match the input timebase (when possible) >0 - set the timebase to provided number Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Merge commit '043b0b9fb1481053b712d06d2c5b772f1845b72b'Clément Bœsch2017-03-24
|\ | | | | | | | | | | | | | | | | * commit '043b0b9fb1481053b712d06d2c5b772f1845b72b': Replace leftover uses of -aframes|-dframes|-vframes with -frames:a|d|v The merge also includes all our own occurences. Merged-by: Clément Bœsch <u@pkh.me>
* | doc/ffmpeg: document trailing "?" in map optionLou Logan2017-02-13
| | | | | | | | | | | | This feature was added in 2375a85c36c4941042e6ee58a31d6560bde91d37. Signed-off-by: Lou Logan <lou@lrcd.com>
* | doc: Add muxers/demuxers list optionMulvya2017-02-11
| | | | | | | | | | Signed-off-by: Mulvya <mulvya@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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