Only Audio Playing - Android 7.0

I am facing an issue on OS 7.0 and 8.0, When i recorded video and playing it, Its playing only audio not showing video.

----Using following setup
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
if (mNextVideoAbsolutePath == null || mNextVideoAbsolutePath.isEmpty()) {
mediaFileR = getVideoFilePath(getActivity().getApplicationContext());
}
mMediaRecorder.setOutputFile(mediaFileR.getAbsolutePath());
mMediaRecorder.setVideoEncodingBitRate(10000000);
mMediaRecorder.setVideoFrameRate(30);
mMediaRecorder.setVideoSize(mVideoSize.getWidth(), mVideoSize.getHeight());

mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);// MPEG_4_SP
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

Reproduce the issue on Android 7.0 and 8.0 using the MediaRecorder setup shown, including the listed MPEG-4, H.264, and AMR_NB settings. Trace the sample's recording and playback paths; done means a recorded video displays video as well as audio on the affected OS versions.

Written by the indexing model from the issue text.