Only video, no audio

Question

This is strange but this is my project requirement. In my project i want to play a video with audio suppression. For audio we have another plan. So i can use VideoView to play a video. But this plays audio of that file as well(which is not require for me). So how can i achieve this strange requirement, i.e Playing video without audio. http://developer.android.com/reference/android/widget/VideoView.html

Answer 1

The best way to do this in my opinion is to set the volume to 0 when the video is ready. All the other solutions I've found imply the use of deprecated API which mute the whole system.

This is a simple solution

VideoView videoPreview = (VideoView) findViewById(R.id.video_view);
        videoPreview.setOnPreparedListener(
                new MediaPlayer.OnPreparedListener()
                {
                    @Override
                    public void onPrepared(MediaPlayer mp)
                    {
                        mp.setVolume(0f, 0f);
                    }
                }
        );

Answer 2

This link Supplying option to user to play video with or without audio helped me to mute my video's sound. Then by using MediaExtractor, AudioTrack API(s) i can extract audio samples from file and then i can play those extracted samples using AudioTrack object. Only precaution that i have to take is while creating AudioTrack object use AudioManager.STREAM_RING

audioTrack= new AudioTrack(AudioManager.STREAM_RING, 44100, AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_16BIT, 44100, AudioTrack.MODE_STREAM);

So videoView plays my video but i can't hear audio because STREAM_MUSIC is in mute, audioTrack object plays my audio separately.