我可以使用VidEffects (https://github.com/krazykira/VidEffects)在我的应用程序中成功地对录制的视频应用滤镜。问题是这样的插件不能渲染过滤过的视频,不管怎么说,我正在尝试使用这个类来应用永久的视频效果:
public class VideoProcessing extends AsyncTask {
private final File myDirectory;
private FFmpegFrameGrabber VIDEO_GRABBER;
private FFmpegFrameRecorder videoRecorder;
File file;
int totalLength;
private Context mContext;
private FFmpegFrameFilter filter;
VideoProcessing(Context context, String path) {
mContext = context;
file = new File(path);
VIDEO_GRABBER = new FFmpegFrameGrabber(file);
myDirectory = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/_Pikky-Edited-Video/");
Log.i(Configurations.TAG, "VIDEO PROCESSING PATH: " + myDirectory);
if (!myDirectory.exists()) { myDirectory.mkdirs(); }
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected Object doInBackground(Object[] params) {
Log.i(Configurations.TAG, "DO IN BACKGROUND: " + params);
Frame tempVideoFrame;
try {
VIDEO_GRABBER.start();
initVideoRecorder(myDirectory + "/video" + System.currentTimeMillis() + ".mp4");
filter.start();
while (VIDEO_GRABBER.grab() != null) {
tempVideoFrame = VIDEO_GRABBER.grabImage();
if (tempVideoFrame != null) {
filter.push(tempVideoFrame);
tempVideoFrame = filter.pull();
videoRecorder.record(tempVideoFrame);
}
}
filter.stop();
videoRecorder.stop();
videoRecorder.release();
VIDEO_GRABBER.stop();
VIDEO_GRABBER.release();
Log.i(Configurations.TAG, "VIDEO GRABBER STOP");
} catch (FrameGrabber.Exception | FrameRecorder.Exception | FrameFilter.Exception e) { e.printStackTrace(); }
return null;
}
@Override
protected void onPostExecute(Object o) {
super.onPostExecute(o);
Log.i(Configurations.TAG, "ON POST EXECUTED: " + o);
}
private void initVideoRecorder(String path) {
try {
// FFmpeg effect/filter that will be applied
filter = new FFmpegFrameFilter("colorchannelmixer=.393:.769:.189:0:.349:.686:.168:0:.272:.534:.131", VIDEO_GRABBER.getImageWidth(), VIDEO_GRABBER.getImageHeight());
videoRecorder = FFmpegFrameRecorder.createDefault(path, VIDEO_GRABBER.getImageWidth(), VIDEO_GRABBER.getImageHeight());
videoRecorder.start();
Log.i(Configurations.TAG, "VIDEO PROCESSING - VIDEO RECORDER START");
} catch (FrameRecorder.Exception e) { e.printStackTrace(); }
}
}
在我的EditVideo活动中的切换用例中调用此类,如下所示-其中surfaceView是自定义的GLSurfaceView
case 2: surfaceView.init(mediaPlayer, new InvertColorsEffect());
new VideoProcessing(EditVideo.this, Configurations.videoToShareURL);
break;
无论如何,似乎doInBackground
函数没有被调用,因为应用程序只在我的图片视频目录(_Pikky Edited-)中创建自定义文件夹,打印其在Logcat中的路径-参见Log.i(Configurations.TAG, "VIDEO PROCESSING PATH: " + myDirectory);
,就这样,视频预览继续在我的Activity中播放-这是因为我已经将我的MediaPlayer的循环设置为true -但是我的VideoProcessing
类的其他函数也没有被调用,initVideoRecorder()
。
这是我的build.gradle,所有必需的依赖项都已下载:
implementation 'com.writingminds:FFmpegAndroid:0.3.2'
implementation group: 'org.bytedeco', name: 'javacv', version: '1.1'
implementation group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '3.0.0-1.1', classifier: 'android-arm'
implementation group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '2.8.1-1.1', classifier: 'android-arm'
我也是开放的选择解决方案,以渲染与过滤器的视频。
https://stackoverflow.com/questions/51169245
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