flutter_ffplay

Description:

flutter ffplay

flutter_ffplay #
A video player powered by ffmpeg.
Getting Started #
This project is a video player using ffmpeg. Currently, plugin supports Android and Windows. It will be appreciated for introducing it to another platforms.
A fully custom IO interface is provided in this plugin, users can provide their own data stream to ffplay.
Compile ffmpeg #
Before using this plugin, you need to compile ffmpeg first.
For Android, build script use ANDROID_NDK_HOME to find the android ndk.
For Windows, You need msys2 with msvc, or build with mingw64 toolchains in linux.
For msys2, you should setup vcvarsall before call cxx/build.sh, For example:
set MSYS2_PATH_TYPE=inherit
call "D:\Apps\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" x64
"D:\Apps\msys64\usr\bin\bash.exe" --login cxx/build.sh
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Basical usage #
First, You need to create an instance of IOHandler. An example of http protocol is provded in example/lib/iohandler.dart
final ioHandler = HttpIOHandler();
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Then, create a Playback instance to hold playback information. An onFrame callback can be passed here to get the current position:
final playback = await Playback.create(onFrame: (pts) {
setState(() {
if (pts == null) {
_isPlaying = false;
} else {
_isPlaying = true;
_position = _isSeeking ? _position : pts;
}
});
});
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Playback instance has textureId and aspectRatio parameters for users to create TextureView:
AspectRatio(
aspectRatio: playback.aspectRatio,
child: Texture(textureId: playback.textureId),
)
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After that, it is time to create FFMpegContext:
final ctx = FFMpegContext(url, ioHandler, playback);
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Then call getStream to get infomation of FFMpegContext:
final streams = await ctx.getStreams();
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Finally, call play with a list of FFMpegStream to play.
await ctx.play(streams);
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Intergrate into other platforms #
Interaction between dart and ffmpeg are achieved by ffi except the playback. To intergrate this plugin to other platforms, you should compile cxx/ffi.cpp with your platform code and add the library path to ffi.dart. Then, you also need to implement the playback by realize the flutter_ffplay method channel.