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Asked: 2026-05-28T23:33:52+00:00

I want to record video only in android with MPEG4 format. I want the

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I want to record video only in android with MPEG4 format. I want the container and codec to be MPEG4. So here is what I have done for that.

Thread video = new Thread(new Runnable() {
    public void run() {
        videoRecorder = new MediaRecorder();
        videoRecorder.setPreviewDisplay(surfaceView.getHolder().getSurface());
        videoRecorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
        videoRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
        videoRecorder.setVideoEncodingBitRate(56 * 8 * 1024);
        videoRecorder.setVideoSize(176, 144);
        videoRecorder.setVideoFrameRate(12);
        videoRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
        videoRecorder.setOutputFile("/sdcard/video.m4e");
        try {
            videoRecorder.prepare();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        videoRecorder.start();
    }
});
video.start();

Now, after recording, I got the video recorded into video.m4e file. But when I check its information, I got the following:

enter image description here

At the same time I used the following to record audio:

Thread audio = new Thread(new Runnable() {              
    public void run() {
        audioRecorder = new MediaRecorder();
        audioRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        audioRecorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
        audioRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
        audioRecorder.setOutputFile("/sdcard/audio.amr");
        try {
            audioRecorder.prepare();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        audioRecorder.start();
    }
});
audio.start();

and I got the container format and codec as AMR as I intended:

enter image description here

So, what causes MediaRecorder to record video in 3GP format? I haven’t specified 3GP anywhere in my program. I am testing this code on my Samsung Galaxy tab running Android 2.2

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1 Answer

  1. Editorial Team

    MPEG-4 is a method of defining compression of audio and visual (AV) digital data.

    A file format for storing time-based media content. It is a general format forming the basis for a number of other more specific file formats (e.g. 3GP, Motion JPEG 2000, MPEG-4 Part 14).

    So there is no conspiracy in the result you got, the compression method (OR “Codec”) you used was MPEG4 and the video format generated by your phone is 3gp, which in actual is a part of the video formats of the suite of the MPEG4 compression scheme for the media.

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