I'm trying to record MediaRecorder without using Camera instance but using Surface video source (yes it's possible, but it turned out that it's not that perfect) - mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
I just write what the issue:
Next code works only on some devices and works temporary on some devices after a recent device rebooting or doesn't work at all
If it doesn't work ok MediaRecorder.stop() method fails with the next error
E/MediaRecorder: stop failed: -1007 W/System.err:
java.lang.RuntimeException: stop failed. at
android.media.MediaRecorder.stop(Native Method)
recorder mp4 file is too small size (kilobytes) and it can't be played
Tested devices:
works on Lenovo P2, Xiaomi Mi A1
doesn't work on Xiaomi Redmi 5, Sony Xperia, Xiaomi Redmi 4 Prime
Also you can read comments in my code to understand the issue better
new Thread(() -> {
MediaRecorder mediaRecorder = new MediaRecorder();
File file = new File(Environment.getExternalStorageDirectory()
+ File.separator + "test_media_recorder_surface_source.mp4");
if (file.exists()) {
file.delete();
}
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mediaRecorder.setOutputFile(file.getAbsolutePath());
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
mediaRecorder.setVideoSize(1280, 720);
mediaRecorder.setCaptureRate(24);
try {
mediaRecorder.prepare();
int sleepTime = 1000 / 24;
Surface surface = mediaRecorder.getSurface();
mediaRecorder.start();
// record something (we can also record frames here from onPreviewFrame byte arrays)
// e.g. convert raw frame byte[] to Bitmap using mb OpenCV and then draw bitmap on canvas
// using canvas.drawBitmap(...)
// here we record just blue background...
for (int i = 0; i < 120; i++) { // 5 seconds, 24 fps
Canvas canvas = surface.lockCanvas(null);
canvas.drawColor(Color.BLUE);
surface.unlockCanvasAndPost(canvas);
try {
Thread.sleep(sleepTime);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
// on many devices stop fails with RuntimeException -1007 error code
// I guess it works ok 100% only for modern powerful devices...
mediaRecorder.stop();
// E/MediaRecorder: stop failed: -1007
// W/System.err: java.lang.RuntimeException: stop failed.
// at android.media.MediaRecorder.stop(Native Method)
// recorder.reset();
mediaRecorder.release();
// I get file with very small size (kilobytes) and it can't be played
// ######## RESULTS ######
// WORKS OK ON:
// - Lenovo P2 (Android 7)
// - Xiaomi Mi A1 (Android 8)
// DOESN'T WORK ON (stop fails with -1007, small video file and can't be played):
// - Xiaomi Redmi 5 (Android 7)
// - Sony Xperia (I don't remember the exact model and Android OS)
// - Xiaomi Redmi 4 Prime (Android 6) *
// * p.s. on Xiaomi Redmi 4 Prime it works some time after rebooting the device
// if I leave this smartphone for a while and try again it will fail again
// until I reboot the device...
} catch (Exception e) {
e.printStackTrace();
}
}).start();
UPDATE #1 seems some progress what could be the issue - codes issue (mp4/h264)
it works better with WEBM/VP8, videos can be played now, but something wrong with fps, it shows 1000 in proporties
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.WEBM);
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.VP8);
also MediaRecord doesn't record audio when using
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.VORBIS);
check Android MediaRecorder crashes on stop when using MP4/H264 and a resolution bigger than 720p
so it also happens when you use MediaRecorder and MediaProjection to record/capture device Screen (because it also uses Surface...)
UPDATE 2 yes seems vp8 codec works fine, but one problem for webm container - NO AUDIO!
buggy Android just doesn't support VORBIS/OGG audio encoding... https://developer.android.com/guide/topics/media/media-formats#audio-formats