Hi Raghav,
Thanks for your reply, I am using the TCP socket to send data to
my server.i am writing image files continuously to sd card is perfet. but send
this to server is not working.
/////// Here is my client side code
public void onPreviewFrame(byte[] data, Camera camera) { // <11>
Camera.Parameters parameters = camera.getParameters();
int format = parameters.getPreviewFormat();
//YUV formats require more conversion
if (format == ImageFormat.NV21 /*|| format == ImageFormat.YUY2 ||
format == ImageFormat.NV16*/)
{
int w = parameters.getPreviewSize().width;
int h = parameters.getPreviewSize().height;
// Get the YuV image
YuvImage yuv_image = new YuvImage(data, format, w, h, null);
// Convert YuV to Jpeg
Rect rect = new Rect(0, 0, w, h);
ByteArrayOutputStream output_stream = new
ByteArrayOutputStream();
yuv_image.compressToJpeg(rect, 100, output_stream);
byte[] byt=output_stream.toByteArray();
FileOutputStream outStream = null;
try {
/////// this work perfect for sd card
//outStream = new FileOutputStream(String.format(
// "/sdcard/%d.jpg", System.currentTimeMillis()));
//outStream.write(byt);
//outStream.close();
// this method write byte array to socket
sendBytes(byt, 0, byt.length);
Log.d(TAG, "onPreviewFrame - wrote bytes: "
+ data.length);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
Preview.this.invalidate();
// Convert from Jpeg to Bitmap
//bmap =
BitmapFactory.decodeByteArray(output_stream.toByteArray(), 0,
output_stream.size());
}
////////// sending byte array to server
public void sendBytes(byte[] myByteArray, int start, int len) throws
IOException {
if (len < 0)
throw new IllegalArgumentException("Negative length not allowed");
if (start < 0 || start >= myByteArray.length)
throw new IndexOutOfBoundsException("Out of bounds: " + start);
// Other checks if needed.
// May be better to save the streams in the support class;
// just like the socket variable.
DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
//BufferedOutputStream imagebos = new BufferedOutputStream(dos);
dos.writeInt(len);
if (len > 0) {
/// this will write to socket
imagebos.write(myByteArray, start, len);
}
}
////// here is server side code /////////
while(dataInputStream.readInt() > 0 )
{
//// reading from client
////read from client in byte array
int len = dataInputStream.readInt();
byte[] data = new byte[2800000]; ////
how to specify the length in run time
if (len > 0)
{
dataInputStream.readFully(data);
//dataInputStream.read(data);
System.out.println("message: " + data);
}
//// write this data array on a file
FileOutputStream fos = new FileOutputStream("image.jpg", true);
ObjectOutputStream out = new ObjectOutputStream(fos);
out.write(data);
out.flush();
out.close();
fos.close();
}
the server side code is correct or not but the file is not in correct formate,
please tell me if i am doing wrong. Also tell me is it correct method to
combine the images file to create a video?
Please correct me if i m doing wrong
Thanks
umer
Date: Sun, 27 Nov 2011 18:36:34 +0530
Subject: Re: [android-developers] Please help me!!! how to create video file on
server side by send onPreviewFrames byte array
From: [email protected]
To: [email protected]
Use any one of the numerous methods to send the files to your server (HTTP, FTP
etc). You can use something on the server to combine them into a video. What
you do on the server is not part of the Android SDK, and hence doesn't belong
on the list.
Thansk
On Sun, Nov 27, 2011 at 6:29 PM, [email protected]
<[email protected]> wrote:
Hi,
i am able to create images on sd card with onPreviewFrame by
converting the raw byte array to Yuvimage and then compressing it to
jpeg format and then write in a file. this work perfectly. but i want
to send these preview frames to server and recored in a video file.
please help me, I m stuck here
thanks and Regards
umer
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Raghav Sood
http://www.androidactivist.org/ - Authorhttp://www.appaholics.in/ - Founder
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