Video quality in android?
Finally I found the code to record high quality video in android 2.1 by setting videEncodingBitRate , AudioEncodingBitRate, AudioSamplingRate ...etc. Using this method you can set the properties for video whatever you want to provide high quality video.
For setting high quality and low quality parameter refer this page,
http://www.andgps.com/20110410/camcorderprofile-predefined-camcorder-profile-settings-for-camcorder-applications
The code i used with base version android 2.1 to produce high quality video is shown below,
recorder = new MediaRecorder();
Method[] methods = recorder.getClass().getMethods();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setVideoFrameRate(24);
recorder.setVideoSize(720, 480);
for (Method method: methods){
try{
if (method.getName().equals("setAudioChannels")){
method.invoke(recorder, String.format("audio-param-number-of-channels=%d", 1));
}
else if(method.getName().equals("setAudioEncodingBitRate")){
method.invoke(recorder,12200);
}
else if(method.getName().equals("setVideoEncodingBitRate")){
method.invoke(recorder, 3000000);
}
else if(method.getName().equals("setAudioSamplingRate")){
method.invoke(recorder,8000);
}
else if(method.getName().equals("setVideoFrameRate")){
method.invoke(recorder,24);
}
}catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
`
use the following settings for Video Recordings:-
private void cameraSettings()
{
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
mediaRecorder.setVideoSize(width, height);
mediaRecorder.setVideoFrameRate(videoFramePerSecond);
}
use videoFramePerSecond = 30 and width = 1280 and height= 720.. This setting you can do by your own as per your requirment.
try this
mrec.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
mrec.setPreviewDisplay(surfaceHolder.getSurface());