codec requires the first frame to be a keyframe(or something similar)
and so on.
I doubt that the resulting files that you get can be even played by a
desktop media player...
You just have to research how to split up media files properly.
Because you can't do it like you did it.
On Jun 28, 10:27 am, suresh sharma <sureshsharma...@gmail.com> wrote:
> Thanks for the Previous satisfactory answers.Now i m working in
> Android division & challenge is now to play vedio file from sdcard.it
> sounds easy.But Obstacle is File is >300 MB (like 1 GB). Android
> sdcard accessing doesn't support >300 MB. So I decided to derive the
> Vedio in Smaller Chunks. My code is as below.But Error is, Vedio can't
> be played.please have a look & also see the DDMS CatLog at last.
> **CODE:**
>
> public class VideoViewDemo extends Activity {
> private static final String TAG = "VideoViewDemo";
>
> private VideoView mVideoView;
> private EditText mPath;
> private ImageButton mPlay;
> private ImageButton mPause;
> private ImageButton mReset;
> private ImageButton mStop;
> private String current;
>
> @Override
> public void onCreate(Bundle icicle) {
> super.onCreate(icicle);
> setContentView(R.layout.main);
> mVideoView = (VideoView) findViewById(R.id.surface_view);
>
> mPath = (EditText) findViewById(R.id.path);
> mPath.setText("sdcard/E0010023.mp4");
>
> mPlay = (ImageButton) findViewById(R.id.play);
> mPause = (ImageButton) findViewById(R.id.pause);
> mReset = (ImageButton) findViewById(R.id.reset);
> mStop = (ImageButton) findViewById(R.id.stop);
>
> mPlay.setOnClickListener(new OnClickListener() {
> public void onClick(View view) {
> playVideo();
> }
> });
> mPause.setOnClickListener(new OnClickListener() {
> public void onClick(View view) {
> if (mVideoView != null) {
> mVideoView.pause();
> }
> }
> });
> mReset.setOnClickListener(new OnClickListener() {
> public void onClick(View view) {
> if (mVideoView != null) {
> mVideoView.seekTo(0);
> }
> }
> });
> mStop.setOnClickListener(new OnClickListener() {
> public void onClick(View view) {
> if (mVideoView != null) {
> current = null;
> mVideoView.stopPlayback();
> }
> }
> });
> runOnUiThread(new Runnable(){
> public void run() {
> playVideo();
>
> }
>
> });
> }
>
> private void playVideo() {
> try {
> final String path = mPath.getText().toString();
> Log.v(TAG, "path: " + path);
> if (path == null || path.length() == 0) {
> Toast.makeText(VideoViewDemo.this, "File URL/path is empty",
> Toast.LENGTH_LONG).show();
>
> } else {
> // If the path has not changed, just start the media player
> if (path.equals(current) && mVideoView != null) {
> mVideoView.start();
> mVideoView.requestFocus();
> return;
> }
> current = path;
>
> int chunkCount=0;
>
> for(int i=0;i<numberOfChunks:i++)
> {
> mVideoView.setVideoPath(getDataSource( "/sdcard/"+mRecordingFile +
> "." + i));
>
> }
>
> mVideoView.setOnTouchListener(new View.OnTouchListener() {
>
> public boolean onTouch(View v, MotionEvent event) {
> int width = mVideoView.getMeasuredWidth();
> int height = mVideoView.getMeasuredHeight();
> //we add 10 pixels to the current size of the video view
> every time you touch
> //the media controller.
> LayoutParams params = new LinearLayout.LayoutParams(width+10,
> height+10);
> mVideoView.setLayoutParams(params);
>
> return true;
> }
>
> });
>
> mVideoView.start();
> mVideoView.requestFocus();
>
> }
> } catch (Exception e) {
> Log.e(TAG, "error: " + e.getMessage(), e);
> if (mVideoView != null) {
> mVideoView.stopPlayback();
> }
> }
> }
>
> private String getDataSource(String path) throws IOException {
> if (!URLUtil.isNetworkUrl(path)) {
> return path;
> } else {
> URL url = new URL(path);
> URLConnection cn = url.openConnection();
> cn.connect();
> InputStream stream = cn.getInputStream();
> if (stream == null)
> throw new RuntimeException("stream is null");
> File temp = File.createTempFile("mediaplayertmp", "dat");
> temp.deleteOnExit();
> String tempPath = temp.getAbsolutePath();
> FileOutputStream out = new FileOutputStream(temp);
> byte buf[] = new byte[128];
> do {
> int numread = stream.read(buf);
> if (numread <= 0)
> break;
> out.write(buf, 0, numread);
> } while (true);
> try {
> stream.close();
> } catch (IOException ex) {
> Log.e(TAG, "error: " + ex.getMessage(), ex);
> }
> getBytesFromFile(temp);
> return tempPath;
> }
> }
>
> /////////////////////////Code for making
> Chunks ////////////////////////
>
> String mRecordingFile;
>
> private void getBytesFromFile(File file) throws IOException {
> FileInputStream is = new FileInputStream(file); //videorecorder
> stores video to file
>
> java.nio.channels.FileChannel fc = is.getChannel();
> java.nio.ByteBuffer bb = java.nio.ByteBuffer.allocate(10485760);
>
> int chunkCount = 0;
>
> byte[] bytes;
>
> while(fc.read(bb) >= 0){
> bb.flip();
> //save the part of the file into a chunk
> bytes = bb.array();
> storeByteArrayToFile(bytes, "/sdcard/"+mRecordingFile + "." +
> chunkCount);//mRecordingFile is the (String)path to file
> chunkCount++;
> bb.clear();
> }
> }
>
> private void storeByteArrayToFile(byte[] bytesToSave, String path)
> throws IOException {
> FileOutputStream fOut = new FileOutputStream(path);
> try {
> fOut.write(bytesToSave);
> }
> catch (Exception ex) {
> Log.e("ERROR", ex.getMessage());
> }
> finally {
> fOut.close();
> }
> }
>
> }
>
> **DDMS CatLog is**
>
> 06-28 12:31:49.321: VERBOSE/VideoViewDemo(3812): path: sdcard/
> E0010023.mp4
> 06-28 12:31:49.580: INFO/StagefrightPlayer(34): setDataSource('/sdcard/
> null.0')
> 06-28 12:31:49.632: INFO/ActivityManager(79): Displayed activity
> org.apache.android.media/.VideoViewDemo: 1112 ms (total 1112 ms)
> 06-28 12:31:49.664: ERROR/MediaPlayer(3812): error (1, -2147483648)
> 06-28 12:31:49.720: ERROR/MediaPlayer(3812): Error (1,-2147483648)
> 06-28 12:31:49.720: DEBUG/VideoView(3812): Error: 1,-2147483648
> 06-28 12:31:55.450: DEBUG/dalvikvm(2174): GC_EXPLICIT freed 170
> objects / 11992 bytes in 126ms
> 06-28 12:32:05.200: DEBUG/dalvikvm(2189): GC_EXPLICIT freed 700
> objects / 38792 bytes in 126ms
> 06-28 12:32:10.281: DEBUG/dalvikvm(2199): GC_EXPLICIT freed 44
> objects / 2088 bytes in 162ms
> 06-28 12:32:25.452: WARN/InputManagerService(79): Window already
> focused, ignoring focus gain of:
> com.android.internal.view.IInputMethodClient$Stub$Proxy@45107dd8
> 06-28 12:35:34.713: DEBUG/SntpClient(79): request time failed:
> java.net.SocketException: Address family not supported by protocol
> 06-28 12:40:34.779: DEBUG/SntpClient(79): request time failed:
> java.net.SocketException: Address family not supported by protocol
> 06-28 12:45:34.803: DEBUG/SntpClient(79): request time failed:
> java.net.SocketException: Address family not supported by protocol
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