如何在android中以mp4格式录制低质量视频？

Question

I am recording a low quality video from camera and uploading it to server. The issue is that the video which is recorded comes in 3gp format. Even if i give EXTRA_OUTPUT flag with a mp4 extension path, still it records in 3gp.

Actually, on iOS device, this 3gp video is not playing and i don't want to convert it to mp4 using ffmpeg because it has a overhead and it will take time to convert.

This is the code i am using :-

            ContentValues values = new ContentValues();
            String fileName = System.currentTimeMillis() + ".mp4";
            values.put(MediaStore.Video.Media.TITLE, fileName);
            values.put(MediaStore.Video.Media.MIME_TYPE, "video/mp4");
            try {
                Uri videoUriFromCamera = getContentResolver().insert(
                        MediaStore.Video.Media.EXTERNAL_CONTENT_URI, values);
                Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
                intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, videoUriFromCamera);
                if (videoSize != -1)
                    intent.putExtra(MediaStore.EXTRA_SIZE_LIMIT, videoSize);
                if (videoDuration != -1)
                    intent.putExtra(MediaStore.EXTRA_DURATION_LIMIT, videoDuration);

                startActivityForResult(intent, ACTION_REQUEST_VIDEO_FROM_CAMERA);
            } catch (Exception e) {
                e.printStackTrace();
                Toast.makeText(VideoPickActivity.this, "SD-Card not available", Toast.LENGTH_LONG).show();
            }

Is there any way or flag that i can record low quality videos in mp4 format or any other format using the default camera intent ?

Answer 1

No.

First, there is no documented extra on ACTION_VIDEO_CAPTURE for stating a particular video container format (eg, MP4). The best approach for attempting to ask that would be to pass a Uri for a file, where the file extension is .mp4 , but even that is just a hope.

Second, there are thousands of camera apps that advertise support for ACTION_VIDEO_CAPTURE , including hundreds of camera apps that are preinstalled. None have to honor any of your extras. None have to pay attention to file extensions to make a choice of video container format.

If you want that degree of control over the video recording, record the video yourself, such as by using MediaRecorder .

Answer 2

You probably need to get a bit deeper into the mechanics of using the camera: Create a MediaRecorder, and set up a CamcorderProfile, which you can set up with some finesse.

    mCamera = Camera.open();
    mRec = new MediaRecorder();
    mRec.setCamera(mCamera);
    mRec.setAudioSource(MediaRecorder.AudioSource.MIC);
    mRec.setVideoSource(MediaRecorder.VideoSource.CAMERA);

    CamcorderProfile mProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_LOW);
    mProfile.fileFormat = MediaRecorder.OutputFormat.MPEG_4;
    mRec.setProfile(mProfile);