I use my Android application for streaming video from phone camera to my PC
Server and need to save them into file on HDD. So, file created and stream
successfully saved, but the resulting file can not play with any video
player (GOM, KMP, Windows Media Player, VLC etc.) - no picture, no sound,
only playback errors.
I tested my Android application into phone and may say that in this
instance captured video successfully stored on phone SD card and after
transfer it to PC played witout errors, so, my code is correct.
In the end, I realized that the problem in the video container: data
streamed from phone in MP4 format and stored in *.mp4 files on PC, and in
this case, file may be incorrect for playback with video players. Can
anyone suggest how to correctly save streaming video to a file?
There is my code that process and store stream data (without errors
handling to simplify):
// getOutputMediaFile() returns a new File object
>
> DataInputStream in = new DataInputStream (server.getInputStream());
>
FileOutputStream videoFile = new FileOutputStream(getOutputMediaFile());
>
int len;
>
byte buffer[] = new byte[8192];
>
> while((len = in.read(buffer)) != -1) {
>
videoFile.write(buffer, 0, len);
>
}
>
> videoFile.close();
>
server.close();
>
For record video locally to phone storage I use:
//targetFile - new File object, represents a file on phone SD card
>
> myMediaRecorder.setOutputFile(targetFile);
>
And for streaming it to PC (without errors handling to simplify)
ParcelFileDescriptor pfd = null;
>
Socket socket = null;
>
String hostname = "my IP";
>
int port = 8081;
>
> socket = new Socket(InetAddress.getByName(hostname), port);
>
pfd = ParcelFileDescriptor.fromSocket(socket);
>
> myMediaRecorder.setOutputFile(pfd.getFileDescriptor());
>
Also, I would appreciate if someone will talk about the possible "pitfalls"
in dealing with the conservation of media streams.
Thank you, I hope for your help!
Alex.
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