you might remember the basic ffmpeg video player that I did two years ago. Thanks to a sponsor, I finally got around to updating it. A massive amount of fixes, general improvements and new features have been added. I will not bother listing a changelog, because it would be way too huge. Instead, take a look at the full list of features below!
The repository is at: https://github.com/scrawl/ogre-ffmpeg-videoplayer. Pull requests are welcome!
Special thanks to Chris Robinson (of OpenAL Soft fame!) for his help.
License change:
Due to popular demand, the video player is now licensed under the MIT license (same as Ogre itself).
Features:
- Uses Ogre's resource system to open the video file, so it could be coming from an archive, or a network resource, etc.
- Writes the video to an Ogre texture, which can be used however you want (on an overlay, or somewhere in the scene, etc)
- Complete A/V sync solution.
- Multithreaded decoding.
- Basic playback control support: play/pause, seeking.
- Works with a variety of FFmpeg versions, including the Libav fork.
- Audio resampling support (using ffmpeg's swresample / libav's avresample library): can convert audio to the user's desired sample rate, sample format and channel layout.
- No audio library dependency. Audio is handled by a MovieAudioFactory, which can be implemented by the user. If no MovieAudioFactory is given, videos are played without sound. An example MovieAudioFactory using SDL_audio is included in the demo.
- Fun fact: Also works with audio-only files, so you can use it as a streaming audio player, if you want.
Dependencies
Video player engine dependencies:
- FFmpeg
- Ogre 1.9+
- boost_thread
Dependencies for the demo:
- SDL2 for audio output
- OIS for keyboard controls
Building
The demo can be built the usual cmake way:
Code: Select all
mkdir build
cd build
cmake ..
make
Place your video files in the build folder, then run the demo using a filename as argument:
./ogre-ffmpeg-videoplayer-demo big_buck_bunny.avi
Demo playback controls:
- Space: Play/Pause
- Left/Right: Seek by 5 seconds.
- Down/Up: Seek by 30 seconds.
). AFAIK movie theatre type content uses light polarization and passive glasses with polarizing filters. I don't see how this could work without a special display or projection screen. nvidia 3dvision uses some other method completely, which has special active glasses which sync with the display. The nintendo 3ds uses autostereoscopy and requires a special display. And then there is the oldschool red/blue passive glasses which should work on any display, since my understanding is it just uses color to control what goes in each eye. I assume the latter is what you will be using, but I don't know. I've seen some weird ass enclosures where it turns your mobile phone into an oculus type headset, which obviously just controls what goes into each eye by blocking 1/2 the screen from the other eye.