文件列表:

BuildExo.sh (734, 2023-01-23)
ExoPlayer (0, 2023-01-23)
ExoPlayer\GitFFmpeg.sh (606, 2023-01-23)
ExoPlayer\extensions (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\build.gradle (1737, 2023-01-23)
ExoPlayer\extensions\ffmpeg\proguard-rules.txt (181, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\AndroidManifest.xml (734, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2 (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\decoder (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\decoder\VideoDecoderInputBuffer.java (2197, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg\FfmpegAudioDecoder.java (9147, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg\FfmpegAudioRenderer.java (6667, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg\FfmpegDecoderException.java (1045, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg\FfmpegLibrary.java (5031, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg\FfmpegVideoDecoder.java (8953, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg\FfmpegVideoRenderer.java (7075, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\java\com\google\android\exoplayer2\ext\ffmpeg\package-info.java (737, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\jni (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\jni\CMakeLists.txt (1805, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\jni\build_ffmpeg.sh (3169, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\main\jni\ffmpeg_jni.cc (27019, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\test (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\test\AndroidManifest.xml (764, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\test\java (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\test\java\com (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\test\java\com\google (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\test\java\com\google\android (0, 2023-01-23)
ExoPlayer\extensions\ffmpeg\src\test\java\com\google\android\exoplayer2 (0, 2023-01-23)
... ...

# ExoPlayer FFmpeg module The FFmpeg module provides `FfmpegAudioRenderer`, which uses FFmpeg for decoding and can render audio encoded in a variety of formats. ## License note Please note that whilst the code in this repository is licensed under [Apache 2.0][], using this module also requires building and including one or more external libraries as described below. These are licensed separately. [Apache 2.0]: https://github.com/google/ExoPlayer/blob/release-v2/LICENSE ## Build instructions (Linux, macOS) To use the module you need to clone this GitHub project and depend on its modules locally. Instructions for doing this can be found in the [top level README][]. The module is not provided via Google's Maven repository (see [#2781][] for more information). In addition, it's necessary to manually build the FFmpeg library, so that gradle can bundle the FFmpeg binaries in the APK: * Set the following shell variable: ``` cd "" FFMPEG_MODULE_PATH="$(pwd)/extensions/ffmpeg/src/main" ``` * Download the [Android NDK][] and set its location in a shell variable. This build configuration has been tested on NDK r21. ``` NDK_PATH="" ``` * Set the host platform (use "darwin-x86_***" for Mac OS X): ``` HOST_PLATFORM="linux-x86_***" ``` * Fetch FFmpeg and checkout an appropriate branch. We cannot guarantee compatibility with all versions of FFmpeg. We currently recommend version 4.2: ``` cd "" && \ git clone git://source.ffmpeg.org/ffmpeg && \ cd ffmpeg && \ git checkout release/4.2 && \ FFMPEG_PATH="$(pwd)" ``` * Configure the decoders to include. See the [Supported formats][] page for details of the available decoders, and which formats they support. ``` ENABLED_DECODERS=(vorbis opus flac) ``` * Add a link to the FFmpeg source code in the FFmpeg module `jni` directory. ``` cd "${FFMPEG_MODULE_PATH}/jni" && \ ln -s "$FFMPEG_PATH" ffmpeg ``` * Execute `build_ffmpeg.sh` to build FFmpeg for `armeabi-v7a`, `arm***-v8a`, `x86` and `x86_***`. The script can be edited if you need to build for different architectures: ``` cd "${FFMPEG_MODULE_PATH}/jni" && \ ./build_ffmpeg.sh \ "${FFMPEG_MODULE_PATH}" "${NDK_PATH}" "${HOST_PLATFORM}" "${ENABLED_DECODERS[@]}" ``` ## Build instructions (Windows) We do not provide support for building this module on Windows, however it should be possible to follow the Linux instructions in [Windows PowerShell][]. [Windows PowerShell]: https://docs.microsoft.com/en-us/powershell/scripting/getting-started/getting-started-with-windows-powershell ## Using the module Once you've followed the instructions above to check out, build and depend on the module, the next step is to tell ExoPlayer to use `FfmpegAudioRenderer`. How you do this depends on which player API you're using: * If you're passing a `DefaultRenderersFactory` to `ExoPlayer.Builder`, you can enable using the module by setting the `extensionRendererMode` parameter of the `DefaultRenderersFactory` constructor to `EXTENSION_RENDERER_MODE_ON`. This will use `FfmpegAudioRenderer` for playback if `MediaCodecAudioRenderer` doesn't support the input format. Pass `EXTENSION_RENDERER_MODE_PREFER` to give `FfmpegAudioRenderer` priority over `MediaCodecAudioRenderer`. * If you've subclassed `DefaultRenderersFactory`, add an `FfmpegAudioRenderer` to the output list in `buildAudioRenderers`. ExoPlayer will use the first `Renderer` in the list that supports the input media format. * If you've implemented your own `RenderersFactory`, return an `FfmpegAudioRenderer` instance from `createRenderers`. ExoPlayer will use the first `Renderer` in the returned array that supports the input media format. * If you're using `ExoPlayer.Builder`, pass an `FfmpegAudioRenderer` in the array of `Renderer`s. ExoPlayer will use the first `Renderer` in the list that supports the input media format. Note: These instructions assume you're using `DefaultTrackSelector`. If you have a custom track selector the choice of `Renderer` is up to your implementation, so you need to make sure you are passing an `FfmpegAudioRenderer` to the player, then implement your own logic to use the renderer for a given track. [top level README]: https://github.com/google/ExoPlayer/blob/release-v2/README.md [Android NDK]: https://developer.android.com/tools/sdk/ndk/index.html [#2781]: https://github.com/google/ExoPlayer/issues/2781 [Supported formats]: https://exoplayer.dev/supported-formats.html#ffmpeg-extension ## Using the module in the demo application To try out playback using the module in the [demo application][], see [enabling extension decoders][]. [demo application]: https://exoplayer.dev/demo-application.html [enabling extension decoders]: https://exoplayer.dev/demo-application.html#enabling-extension-decoders ## Links * [Troubleshooting using decoding extensions][] * [Javadoc][] [Troubleshooting using decoding extensions]: https://exoplayer.dev/troubleshooting.html#how-can-i-get-a-decoding-extension-to-load-and-be-used-for-playback [Javadoc]: https://exoplayer.dev/doc/reference/index.html

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