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Andriy Gelman fc3760a66d avcodec/v4l2_m2m_enc: Check encoder pix_fmt matches pix_fmt on device 
Fixes #8079

During initialization of a v4l2m2m device, the configured pix_fmt can be
different to the pix_fmt of the encoder (i.e. avctx->pix_fmt).

For example on the Odroid XU4:
./ffmpeg -f lavfi -i yuvtestsrc -codec:v h264_v4l2m2m out.h264

will configure the v4l2 encoder to pix_fmt nv21, whereas the input
frames will be yuv444p.

This commit checks that the configured v4l2 pix_fmt on device is the
same as avctx->pix_fmt. If they are different the initialization fails
and an error is returned. Tested on RPI4 and Odroid XU4.

Signed-off-by: Andriy Gelman <andriy.gelman@gmail.com>
2019-12-27 23:42:57 +00:00
compat compat/cuda: Change inclusion guards 2019-08-05 12:07:09 +02:00
doc avfilter/vf_vibrance: add support for commands 2019-12-27 21:31:04 +01:00
ffbuild build: add support for building CUDA files with clang 2019-08-04 19:08:08 +02:00
fftools fftools/cmdutils: Fix break command dump for -map option 2019-12-23 09:46:51 +08:00
libavcodec avcodec/v4l2_m2m_enc: Check encoder pix_fmt matches pix_fmt on device 2019-12-27 23:42:57 +00:00
libavdevice avdevice/xcbgrab: use a buffer pool for shared memory segments 2019-12-26 00:47:24 +01:00
libavfilter avfilter/vf_vibrance: add support for commands 2019-12-27 21:31:04 +01:00
libavformat avformat/dashdec: propagate icy to child AVIOContexts 2019-12-27 14:58:51 -03:00
libavresample
libavutil avutil/tests/opt: add av_opt_get/av_opt_set tests 2019-12-27 21:52:21 +01:00
libpostproc Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libswresample swresample/audioconvert: fix invalid left shift for 64bit sample format 2019-09-26 16:22:47 +02:00
libswscale swscale/aarch64: use multiply accumulate and increase vector factor to 4 2019-12-17 23:41:47 +01:00
presets
tests avutil/tests/opt: add av_opt_get/av_opt_set tests 2019-12-27 21:52:21 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for dst 2019-12-15 01:01:22 +01:00
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.travis.yml
Changelog Changelog: Fix typo of comments 2019-12-23 22:13:48 +08:00
configure fate: Add an option for disabling the 2k/4k tests 2019-12-17 10:22:29 +02:00
CONTRIBUTING.md
COPYING.GPLv2
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INSTALL.md
LICENSE.md LICENSE: Add missing libraries that need --enable-version3. 2019-08-12 02:25:39 +02:00
MAINTAINERS MAINTAINERS: add myself as libxavs2 maintainer 2019-12-07 19:34:57 +01:00
Makefile tools: add a fuzzer tool for bitstream filters 2019-12-05 20:49:15 -03:00
README.md
RELEASE RELEASE: Update value for post 4.2 branch 2019-07-21 18:37:32 +02:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.