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a02dfb1262
The switch to the new NVDEC pixel formats made cuvid_derive_output_format() and the format probe select AV_PIX_FMT_P012 for 12-bit 4:2:0, AV_PIX_FMT_P210/P212 for 10/12-bit 4:2:2 and AV_PIX_FMT_YUV444P10MSB/ YUV444P12MSB for 10/12-bit 4:4:4, but cuvid_handle_video_sequence() still only mapped the older formats to a CUVID surface format. Decoding such streams therefore failed with "Unsupported output format" (AVERROR(EINVAL)); because every packet then errored without producing a frame, the failure could also manifest as a hang rather than a clean error exit. The system-memory copy path in cuvid_output_frame() rejected the same formats with AVERROR_BUG. Map P012 to cudaVideoSurfaceFormat_P016 (mirroring P010), P210/P212 to cudaVideoSurfaceFormat_P216 (mirroring P216) and YUV444P10MSB/YUV444P12MSB to cudaVideoSurfaceFormat_YUV444_16Bit (mirroring YUV444P16); the hardware surface is physically 16-bit and the pixel format only records the number of valid bits. Add the same formats to the system-memory copy path, whose per-plane geometry is already derived generically from the pixel descriptor. Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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.