视频格式资料

视频播放：

reference address:

http://developer.android.com/guide/appendix/media-formats.html#core

http://developer.android.com/guide/appendix/media-formats.html#recommendations

http://developer.android.com/guide/appendix/media-formats.html

https://www.google.pt

Table 1: Supported Video Format for Android 

Android Supported Video Format/Codec	Supported Video File Types/Container Formats	Details
H.263	• 3GPP (.3gp)  • MPEG-4 (.mp4)
H.264 AVC	• 3GPP (.3gp) • MPEG-4 (.mp4) • MPEG-TS (.ts, AAC audio only, not seekable, Android 3.0+)	Baseline Profile (BP)
MPEG-4 SP	•3GPP (.3gp)
VP8	• WebM (.webm) • Matroska (.mkv, Android 4.0+)	Streamable only in Android 4.0 and above

Tips: for more information about audio and image formats compatible with Android, please see the following: 

• Supported Audio formats: MP3, 3GP, MP4, M4A, AAC, WAV, TS, FLAC, OGG, MID, XMF, MXMF, RTTTL, RTX, OTA, IMY.

• Supported Image formats: JPG, GIF, PNG, BMP, WEBP.

Now that you've had a clear understanding of the android supported video file formats, let’s move to the next section of recommended video encoding profiles and parameters that the Android devices support for playback. Only if you are skilled in the encoding parameters for Android recognized video, can you play videos on Android without going awry. To twist the video encoding parameters to best suit your Android phones and tablets, you can count on video converter software to fulfill the needs.

Table 2: Video Encoding Parameter Recommendations for Android

	SD (Low quality)	SD (High quality)	HD (Only available on some devices)
Video resolution	176 x 144 px	480 x 360 px	1280 x 720 px
Video codec	H.264 Baseline Profile	H.264 Baseline Profile	H.264 Baseline Profile
Video frame rate	12 fps	30 fps	30 fps
Video bitrate	56 Kbps	500 Kbps	2 Mbps
Audio bitrate	24 Kbps	128 Kbps	192 Kbps
Audio codec	AAC-LC	AAC-LC	AAC-LC
Audio channels	1 (mono)	2 (stereo)	2 (stereo)

 

example codes:

Summary: 

• H.264 Baseline Profile, 480 x 360 px, 30 fps, 500 Kbps
• AAC-LC, Stereo, 128 Kbps

 

 

this.mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
this.mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
this.mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);


this.mediaRecorder.setMaxDuration(10000);


this.mediaRecorder.setOutputFile(this.initFile().getAbsolutePath());
this.mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
this.mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
this.mediaRecorder.setVideoSize(640,480); 
this.mediaRecorder.setVideoFrameRate(12); 

try {
    this.mediaRecorder.setPreviewDisplay(this.cameraPreview.getHolder().getSurface());
    this.mediaRecorder.prepare();

    // start the actual recording
    // throws IllegalStateException if not prepared
    this.mediaRecorder.start();
    Toast.makeText(this, R.string.recording, Toast.LENGTH_SHORT).show();
    // enable the stop button by indicating that we are recording
    this.toggleButtons(true);
} catch (Exception e) {
    Log.wtf(TAG, "Failed to prepare MediaRecorder", e);
    Toast.makeText(this,"record nathi thatu...", Toast.LENGTH_SHORT).show();
    this.releaseMediaRecorder();
}