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Commit Graph

308 Commits

Author SHA1 Message Date
Anton Khirnov
5256b2fbe6 fftools/ffmpeg_mux: print latency information in -debug_ts muxing output 2023-12-14 08:11:05 +01:00
Marth64
1439784ff0 doc/ffmpeg: fix -copy_ts typo, should be -copyts
Signed-off-by: Marth64 <marth64@proxyid.net>
2023-12-11 16:17:15 +05:30
Marth64
d06518e448 doc/ffmpeg: AV_FMT_DISCONT typo should be AVFMT_TS_DISCONT 2023-12-10 01:36:00 +01:00
Haihao Xiang
e5f8b5313e doc/ffmpeg: Update the description about d3d11va
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
2023-12-07 10:32:16 +08:00
Anton Khirnov
436b972fc8 doc/ffmpeg: expand -bsf documentation
Explain how to pass options to filters.
2023-11-14 18:18:26 +01:00
Anton Khirnov
d2c416fdf1 fftools/ffmpeg_enc: merge -force_key_frames source/source_no_drop
Always use the functionality of the latter, which makes more sense as it
avoids losing keyframes due to vsync code dropping frames.

Deprecate the 'source_no_drop' value, as it is now redundant.
2023-10-10 12:41:31 +02:00
Anton Khirnov
5d58a35f98 fftools/ffmpeg: deprecate the -top option
It is badly named (should have been -top_field_first, or at least -tff),
underdocumented and underspecified, and (most importantly) entirely
redundant with the setfield filter.
2023-09-18 17:16:06 +02:00
Anton Khirnov
acde0ae6c7 doc/ffmpeg: fix -enc_time_base documentation
Stop claiming the argument is always a floating point number, which
* confuses floating point and decimal numbers
* is not always true even accounting for the above point
2023-07-15 11:02:11 +02:00
Anton Khirnov
dff3a283cd fftools/ffmpeg: rework -enc_time_base handling
Read the timebase from FrameData rather than the input stream. This
should fix #10393 and generally be more reliable.

Replace the use of '-1' to indicate demuxing timebase with the string
'demux'. Also allow to request filter timebase with
'-enc_time_base filter'.
2023-07-15 11:02:11 +02:00
Anton Khirnov
52d7ea6635 doc/ffmpeg: improve -stats_*_fmt documentation 2023-06-19 09:48:10 +02:00
Tobias Rapp
aa6eeb29cb doc/ffmpeg: Extend documentation for sws_flags option
Clarify that -sws_flags are only applied to simple filtergraphs as a
default, not complex filtergraphs. Add a reference to the scaler
options.
2023-05-17 17:14:54 +02:00
Davy Durham
2ae16b05d6 fftools/ffmpeg: add ability to set a input burst time before readrate is enforced
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2023-05-07 15:48:15 +02:00
Anton Khirnov
5a04aae821 fftools/ffmpeg: deprecate -adrift_threshold
This option has had no effect since -async was removed in
3d86a13b47
2023-05-02 10:59:24 +02:00
Sil Vilerino
5ff1430452 fftools/ffmpeg_opt: Document VAAPI -device usage for DirectX Adapter
Initial review at https://github.com/intel-media-ci/ffmpeg/pull/619/

Signed-off-by: Sil Vilerino <sivileri@microsoft.com>
Reviewed-by: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
Reviewed-by: Wu, Tong1 <tong1.wu@intel.com>
2023-04-24 13:24:41 +08:00
Anton Khirnov
2f24290c8e fftools/ffmpeg: disable and deprecate -qphist
This option adds a long string of numbers to the progress line, where
i-th number contains the base-2 logarithm of the number of times a frame
with this QP value was seen by print_report().

There are multiple problems with this feature:
* despite this existing since 2005, web search shows no indication
  that it was ever useful for any meaningful purpose;
* the format of what is printed is entirely undocumented, one has to
  find it out from the source code;
* QP values above 31 are silently ignored;
* it only works with one video stream;
* as it relies on global state, it is in conflict with ongoing
  architectural changes.

It then seems that the nontrivial cost of maintaining this option is not
worth its negligible (or possibly negative - since it pollutes the
already large option space) value.
Users who really need similar functionality can also implement it
themselves using -vstats.
2023-04-13 15:11:56 +02:00
Anton Khirnov
2244722f1f doc/ffmpeg: rewrite the introductory paragraph
This is not the place to boast about high-quality polyphase filters -
the most important feature of the program is its universality.
2023-04-04 11:45:51 +02:00
Anton Khirnov
bf6df790c2 doc/ffmpeg: refine program title
It is a media converter, not just a video converter.
2023-04-04 11:45:44 +02:00
Stefano Sabatini
627d5a87bb doc/ffmpeg: slightly rework introductory examples
In particular, add a sentence to introduce the example, and add a
simpler starting example with no options.

Also use different format for input.avi and output.mp4, to convey
that the conversion also works on the container format.

Address issue:
http://trac.ffmpeg.org/ticket/8730
2023-04-02 16:28:54 +02:00
Stefano Sabatini
7792f53e5e doc/filters: propose solutions to avoid shell escaping
Reference drawtext textfile option and ffmpeg -filter_complex_script
and -filter_script as possible solutions to avoid shell escaping.

Address issue:
http://trac.ffmpeg.org/ticket/9008
2023-03-29 00:15:19 +02:00
Stefano Sabatini
261fb55e39 doc/ffmpeg: add vstats format documentation
Address issue:
http://trac.ffmpeg.org/ticket/7520
2023-03-26 12:24:26 +02:00
Stefano Sabatini
f88a4cb5e0 doc/ffmpeg: extend documentation for -dts_delta_threshold and -dts_error_threshold
PR: https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=8252
2023-02-28 22:26:28 +01:00
Anton Khirnov
2c4dcbd66b fftools/ffmpeg: rename -enc_stats* to -stats_enc*
This is consistent with -stats_mux*

As the options were added very recently, this should not break any
users.
2023-02-10 11:02:13 +01:00
Anton Khirnov
42a0dd6e7e fftools/ffmpeg: add an option for writing pre-muxing stats
Analogous to -enc_stats*, but happens right before muxing. Useful
because bitstream filters and the sync queue can modify packets after
encoding and before muxing. Also has access to the muxing timebase.
2023-02-09 15:24:15 +01:00
Jan Ekström
9a820ec8b1 ffmpeg: add video heartbeat capability to fix_sub_duration
Splits the currently handled subtitle at random access point
packets that can be configured to follow a specific output stream.
Currently only subtitle streams which are directly mapped into the
same output in which the heartbeat stream resides are affected.

This way the subtitle - which is known to be shown at this time
can be split and passed to muxer before its full duration is
yet known. This is also a drawback, as this essentially outputs
multiple subtitles from a single input subtitle that continues
over multiple random access points. Thus this feature should not
be utilized in cases where subtitle output latency does not matter.

Co-authored-by: Andrzej Nadachowski <andrzej.nadachowski@24i.com>
Co-authored-by: Bernard Boulay <bernard.boulay@24i.com>

Signed-off-by: Jan Ekström <jan.ekstrom@24i.com>
2023-02-03 16:17:29 +02:00
Anton Khirnov
806ecace91 fftools/ffmpeg: support input frame params in encoding stats 2023-01-31 09:09:23 +01:00
Anton Khirnov
935964bd41 doc/ffmpeg: drop non-existent -dc option 2023-01-29 09:12:40 +01:00
Anton Khirnov
425b2c4a56 fftools/ffmpeg: add options for writing encoding stats
Similar to -vstats, but more flexible:
- works for audio as well as video
- frame and/or packet information
- user-specifiable format
2023-01-29 09:09:59 +01:00
Anton Khirnov
e884360e91 doc/ffmpeg: improve -r documentation
Explain different behavior for encoding and streamcopy.
2023-01-10 11:49:28 +01:00
Anton Khirnov
1a6ba73ff7 doc/ffmpeg.texi: drop a non-existent option
-ilme has not existed for 17 years, since
637b5326f3
2023-01-10 11:49:28 +01:00
Jan Ekström
c889248647 ffmpeg: Add display_{rotation, hflip, vflip} options
This enables overriding the rotation as well as horizontal/vertical
flip state of a specific video stream on the input side.

Additionally, switch the singular test that was utilizing the rotation
metadata to instead override the input display rotation, thus leading
to the same result.
2022-10-19 11:53:52 +02:00
Anton Khirnov
3d86a13b47 fftools/ffmpeg: drop the -async option
It has been deprecated in favor of the aresample filter for almost 10
years.

Another thing this option can do is drop audio timestamps and have them
generated by the encoding code or the muxer, but
- for encoding, this can already be done with the setpts filter
- for muxing this should almost never be done as timestamp generation by
  the muxer is deprecated, but people who really want to do this can use
  the setts bitstream filter
2022-10-04 11:55:03 +02:00
Anton Khirnov
889b4b2f60 doc/ffmpeg: update -map documentation
Make it match reality (current text was not updated for stream
specifiers), extend and clarify the text.
2022-08-08 16:20:58 +02:00
Anton Khirnov
fee249b30a fftools/ffmpeg: deprecate specifying a sync stream with -map
It has not had any effect whatsoever for over 10 years.
2022-08-08 16:20:58 +02:00
Anton Khirnov
98ece428e3 fftools/ffmpeg: deprecate the -map_channel option
It is now entirely redundant with audio filters, and is in fact
implemented by setting up a 'pan' filter instance.
2022-07-28 16:37:16 +02:00
Anton Khirnov
1a378b8274 fftools/ffmpeg: deprecate -psnr
It is entirely redundant with -flags +psnr.
2022-07-28 16:37:16 +02:00
Anton Khirnov
2d924b3a63 fftools/ffmpeg: move each muxer to a separate thread 2022-07-23 11:53:19 +02:00
Anton Khirnov
4740fea7dd fftools/ffmpeg: rework -shortest implementation
The -shortest option (which finishes the output file at the time the
shortest stream ends) is currently implemented by faking the -t option
when an output stream ends. This approach is fragile, since it depends
on the frames/packets being processed in a specific order. E.g. there
are currently some situations in which the output file length will
depend unpredictably on unrelated factors like encoder delay. More
importantly, the present work aiming at splitting various ffmpeg
components into different threads will make this approach completely
unworkable, since the frames/packets will arrive in effectively random
order.

This commit introduces a "sync queue", which is essentially a collection
of FIFOs, one per stream. Frames/packets are submitted to these FIFOs
and are then released for further processing (encoding or muxing) when
it is ensured that the frame in question will not cause its stream to
get ahead of the other streams (the logic is similar to libavformat's
interleaving queue).

These sync queues are then used for encoding and/or muxing when the
-shortest option is specified.

A new option – -shortest_buf_duration – controls the maximum number of
queued packets, to avoid runaway memory usage.

This commit changes the results of the following tests:
- copy-shortest[12]: the last audio frame is now gone. This is
  correct, since it actually outlasts the last video frame.
- shortest-sub: the video packets following the last subtitle packet are
  now gone. This is also correct.
2022-07-23 11:53:19 +02:00
Gyan Doshi
882aac99d2 ffmpeg: add option -isync
This is a per-file input option that adjusts an input's timestamps
with reference to another input, so that emitted packet timestamps
account for the difference between the start times of the two inputs.

Typical use case is to sync two or more live inputs such as from capture
devices. Both the target and reference input source timestamps should be
based on the same clock source.

If either input lacks starting timestamps, then no sync adjustment is made.
2022-07-14 15:48:24 +05:30
Gyan Doshi
dba7376d59 doc/ffmpeg: correct description of -shortest
-shortest stops 'recording' when the shortest output stream ends. The
native or even seek-adjusted duration of the source input stream isn't
considered.
2022-07-04 14:43:48 +05:30
Marton Balint
843c4346b1 doc/ffmpeg: fix typo in VCD creation example
Fixes ticket #9753.

Signed-off-by: Marton Balint <cus@passwd.hu>
2022-06-12 09:35:50 +05:30
Gyan Doshi
09c53a04c5 ffmpeg: add option fps_mode
fps_mode sets video sync per output stream. Overrides vsync for matching
streams.

vsync is deprecated.
2022-06-11 09:47:27 +05:30
NetSysFire
cd78d5bba9 doc/ffmpeg: fix typo in ffmpeg.texi 2022-05-10 22:02:58 +02:00
Anton Khirnov
6ce9546428 ffmpeg: deprecate passing numbers to -vsync
There is never a reason to do this, using symbolic names is always
preferred.
2021-12-07 11:23:45 +01:00
Anton Khirnov
4258893961 ffmpeg: make -bits_per_raw_sample a per-output-stream option
Also, document it and make it apply to audio in addition to video.
2021-12-04 14:07:36 +01:00
Timo Rothenpieler
b1f1de0844 avutil/hwcontext_cuda: add option to use primary device context 2021-11-22 23:03:21 +01:00
Anton Khirnov
bd55552d69 ffmpeg: rewrite setting the stream disposition
Currently, the code doing this is spread over several places and may
behave in unexpected ways. E.g. automatic 'default' marking is only done
for streams fed by complex filtergraphs. It is also applied in the order
in which the output streams are initialized, which is effectively
random.

Move processing the dispositions at the end of open_output_file(), when
we already have all the necessary information.

Apply the automatic default marking only if no explicit -disposition
options were supplied by the user, and apply it to the first stream of
each type (excluding attached pics) when there is more than one stream
of that type and no default markings were copied from the input streams.

Explicitly document the new behavior.

Changes the results of some tests, where the output file gets a default
disposition, while it previously did not.
2021-11-16 10:51:32 +01:00
Artem Galin
f1cd1dc6ce libavutil/hwcontext_qsv: add usage child_device_type argument to explicitly 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
    338fbcd5bb
    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>
2021-09-08 17:42:53 -03:00
Gyan Doshi
c320b78e95 ffmpeg: add option readrate
Allows to read inputs at arbitrary rates.
-re is equivalent to -readrate 1

Tested with -copyts {+ start_at_zero}, -ss, streamcopied & decoded streams.
2021-07-17 20:34:21 +05:30
Keyun Tong
b7266302a4 fftools/ffmpeg: Add new variant source_no_drop to the force_key_frames option
Suggested-By: ffmpeg@fb.com
2021-07-16 09:50:19 +02:00
Gyan Doshi
79ebdbb9b9 ffmpeg: add option recast_media
Allows forcing decoders of different media type.
Needed to decode media data muxed as data streams.
2021-07-11 11:54:20 +05:30