d70e80eac4
- Invalidate timeline cache on ApplyJsonDiff() clip insert (remove affected frame range). - Add lock in Timeline::ClearAllCache() for safe concurrent access. - Make VideoCacheThread cross-thread state safe (atomics + seek-state mutex). - Lock CacheMemory::Contains() to avoid races. - Handle malformed audio streams in FFmpegReader by disabling invalid audio and continuing video-only. - Add FPS/timebase safety fallbacks in FFmpeg frame/PTS math. - Guard Frame::GetSamplesPerFrame() against invalid inputs. - Add/adjust regression tests for cache invalidation and invalid rate handling.
OpenShot Video Library (libopenshot) is a free, open-source C++ library dedicated to delivering high quality video editing, animation, and playback solutions to the world.
Build Status
Features
- Cross-Platform (Linux, Mac, and Windows)
- Multi-Layer Compositing
- Video and Audio Effects (Chroma Key, Color Adjustment, Grayscale, etc…)
- Animation Curves (Bézier, Linear, Constant)
- Time Mapping (Curve-based Slow Down, Speed Up, Reverse)
- Audio Mixing & Resampling (Curve-based)
- Audio Plug-ins (VST & AU)
- Audio Drivers (ASIO, WASAPI, DirectSound, CoreAudio, iPhone Audio, ALSA, JACK, and Android)
- Telecine and Inverse Telecine (Film to TV, TV to Film)
- Frame Rate Conversions
- Multi-Processor Support (Performance)
- Python and Ruby Bindings (All Features Supported)
- Qt Video Player Included (Ability to display video on any QWidget)
- Unit Tests (Stability)
- All FFmpeg Formats and Codecs Supported (Images, Videos, and Audio files)
- Full Documentation with Examples (Doxygen Generated)
Install
Detailed instructions for building libopenshot and libopenshot-audio for
each OS. These instructions are also available in the /docs/ source folder.
Hardware Acceleration
OpenShot now supports experimental hardware acceleration, both for encoding and decoding videos. When enabled, this can either speed up those operations or slow them down, depending on the power and features supported by your graphics card.
Please see doc/HW-ACCEL.md for more information.
Documentation
Beautiful HTML documentation can be generated using Doxygen.
make doc
(Also available online: http://openshot.org/files/libopenshot/)
Developers
Are you interested in becoming more involved in the development of OpenShot? Build exciting new features, fix bugs, make friends, and become a hero! Please read the step-by-step instructions for getting source code, configuring dependencies, and building OpenShot.
Report a bug
You can report a new libopenshot issue directly on GitHub:
https://github.com/OpenShot/libopenshot/issues
Websites
- https://www.openshot.org/ (Official website and blog)
- https://github.com/OpenShot/libopenshot/ (source code and issue tracker)
- https://github.com/OpenShot/libopenshot-audio/ (source code for audio library)
- https://github.com/OpenShot/openshot-qt/ (source code for Qt client)
- https://launchpad.net/openshot/
Copyright & License
Copyright (c) 2008-2022 OpenShot Studios, LLC. This file is part of OpenShot Video Editor (https://www.openshot.org), an open-source project dedicated to delivering high quality video editing and animation solutions to the world.
OpenShot Library (libopenshot) is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
OpenShot Library (libopenshot) is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with OpenShot Library. If not, see http://www.gnu.org/licenses/.
To release a commercial product which uses libopenshot (i.e. video editing and playback), commercial licenses are also available: contact sales@openshot.org for more information.