gx
11f310061a
- Add libnpp dependency в configure (cuda_grid_filter_deps) - #include <nppi.h>, nppSetStream(s->cu_stream) перед resize batch - Smart copy-or-scale в compose path: - src.size == cell.size → cuMemcpy2DAsync (fast path, zero overhead) - else → nppiResizeSqrPixel_8u_C1R для Y + _C2R для NV12 UV interleaved - NPPI_INTER_LINEAR interpolation (bilinear — стандартный для video) - Destination pointer offset через explicit pointer arithmetic (NPP не имеет dst_offset параметра, нужно сместить pSrc указатель) Это unblock'ает mixed-size cameras (parking 1920x1080 + gate_lpr 2688x1520 в одном grid с main_plus_preview layout — big cell scaled до 1280x1080, small cells scaled до 640x360). Phase 2 complete (2a + 2b). Phase 3 будет controller sidecar.
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.