When I call FFmpegFrameRecorder the start () method error #72
Comments
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can you play those temporary video and audio files in any player? |
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Yes, I can play it. Now I have handle this problem, but the video after merge can not be played |
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Please try to use the default audio codec by NOT calling |
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yesong how did you solve this problem ? |
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use the default audio codec by NOT calling setAudioCodec(). |
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Hey Saudet Now this problem has been solved, But now I encountered a new problem, I use an MP3 audio files and an MP4 video files composite a new MP4 file, but the composite video files can not be played, is that my code problem? Please help me, thank you ! this is my code: //audio grabber grabberVideo.start(); int with = grabberVideo.getImageWidth(); String videoPath = fileUtils.getSDCardRoot() + filePath + File.separator + fileName; double frameRate = grabberVideo.getFrameRate(); Log.i("yesongsong", "frameRate= "+frameRate +" sampleRate= "+sampleRate +" audioChannels= "+audioChannels); recorder.setFormat("mp4"); recorder.start(); Frame frame1 = grabberVideo.grabFrame(); while (frame1 != null || frame2 != null) { recorder.record(frame1); } recorder.release(); |
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@yesong Could you provide the messages that FFmpeg outputs to the console? Thanks! |
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@saudet Program at run time without any errors or warnings about the ffmpeg Tips Is this my code problem? I've paid a lot of time, but it has not work. |
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@saudet |
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Ok, great to hear that! Could you please let us know how you fixed your problem, so that it may help others in the future with the same issue. Thank you! |
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After I call start() on a recorder, I get the following error: |
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If you don't need audio setAudioChannels(0) before calling start().
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Thanks for your advice, not the case though where I could ignore an audio track. It's appeared that a video codec also couldn't be opened. |
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org.bytedeco.javacv.FrameRecorder$Exception: avio_open2 error() error -13: Could not open 'null' but the file is : why? |
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@quinnxiao Errno 13 is "Permission denied": Your application doesn't have write access. |
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I am trying the RecordActivity sample and I am getting the same error (13). I have these in the manifest (before the application): Also when I open the app's permissions in my device it says that I have these permissions. 08-05 11:00:48.630 15147-15147/com.example.ayele.myapplication I/MainActivity: recorder initialize success What am I missing here? Thank you! |
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You just have missing permissions. Some devices have all permissions
disabled by default. You need to enable them. Refer to your device
documentation.
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Thank you again! 06-08 16:30:54.548 31518-31518/? I/art: Late-enabling -Xcheck:jni EDIT |
org.bytedeco.javacv.FrameRecorder$Exception: Could not open audio codec.
at org.bytedeco.javacv.FFmpegFrameRecorder.startUnsafe(FFmpegFrameRecorder.java:543)
at org.bytedeco.javacv.FFmpegFrameRecorder.start(FFmpegFrameRecorder.java:268)
The following is my code：
FileUtils fileUtils = new FileUtils();
fileUtils.creatSDDir(filePath);
AssetManager am = getAssets();
InputStream inputStream = am.open("music_city.mp3");
File audiofile = createFileFromInputStream(inputStream,0);
InputStream inputStream2 =am.open("tpl_afternoon.mp4");
File videoFile = createFileFromInputStream(inputStream2,1);
//audio grabber
FFmpegFrameGrabber grabberAudio = new FFmpegFrameGrabber(audiofile);
// video grabber
FFmpegFrameGrabber grabberVideo = new FFmpegFrameGrabber(videoFile);
grabberAudio.start();
grabberVideo.start();
int with = grabberVideo.getImageWidth();
int height = grabberVideo.getImageHeight();
int audioChannels = grabberAudio.getAudioChannels();
recorder = new FFmpegFrameRecorder(videoPath , with, height,audioChannels);
double frameRate = grabberVideo.getFrameRate();
int sampleRate = grabberAudio.getSampleRate();
int sampleFormat = grabberAudio.getSampleFormat();
Log.i("yesongsong", "frameRate= "+frameRate +" sampleRate= "+sampleRate +" sampleFormat= "+sampleFormat);
recorder.setFormat("mp4");
recorder.setFrameRate(grabberVideo.getFrameRate());
recorder.setSampleRate(grabberAudio.getSampleRate());
recorder.setSampleFormat(grabberAudio.getSampleFormat());
recorder.setVideoBitrate(videoBitrate);
recorder.setVideoCodec(videoCodec);
recorder.setAudioBitrate(audioBitrate);
//recorder.setAudioCodec(audioCodec);
recorder.start(); // run here Exception occurred
Frame frame1 = grabberVideo.grabFrame();
Frame frame2 = grabberAudio.grabFrame();
while (frame1 != null || frame2 != null) {
recorder.record(frame1);
recorder.record(frame2);
frame1 = grabberVideo.grabFrame();
frame2 = grabberAudio.grabFrame();
}
recorder.release();
recorder.stop();
recorder = null;
grabberAudio.stop();
grabberVideo.stop();
Log.i("yesongsong","Total Time:- "+ recorder.getTimestamp());
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}.execute();
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