You can't just split the file like you did there. Files need metadata, 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 <[email protected]> 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 -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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