RE: [android-developers] Re: Encoder???

[Muhammad UMER]

Hi skink,
 I want to ask some questions, I know this is not a personal 
discussion forum,  but i have to ask.
 1) I am new to android, and android camera to server live video 
streaming is my first application. please can you tell me that Can I sale out 
this application and how?

 2) I want some new project, can you please tell me how can i get 
the new project.


thanks and Regards.

umer

> Date: Mon, 13 Feb 2012 08:20:22 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > Hi pskink,
> >
> >   Thank you for your kind help. I have done this app with your 
> > help. I have handle the file header on server side and now 3gp file is 
> > playable. You are such a great great great. man.
> >
> > Thanks and Regards,
> > umer
> >
> >
> >
> >
> 
> 
> you are welcome, no problem
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi,
   I recive your reply empty ,Please can you do it again.

Thanks
umer

> Date: Tue, 24 Jan 2012 00:35:18 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> muhammad.ume...@hotmail.com wrote:
> > hi,
> >Please anyone tell me that, which encoder i can use on
> > onPreviewFrame to create a video, and i want to send this encoded
> > video to network, please suggest me which encoder that android
> > support.
> >
> > Thanks and Regards
> >
> > umer
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

 hi,
  Thanks for your kind reply, I studied about MediaRecorder to capture 
video, but i want to send video to my server (TCP socket) live. and save
 this video on a file.





also i found that, the ParcelFileDescriptor.fromSocket(socket) can be 
use to send the video but i don't know, how to recieve it on server 
side. if you have any idea about please reply 


me.
e.g,
   pfd = ParcelFileDescriptor.fromSocket(socket);
   recorder.setOutputFile(pfd.getFileDescriptor());





Thanks and Regards.





umer

> Date: Tue, 24 Jan 2012 01:18:49 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> On Jan 24, 10:15 am, Muhammad UMER 
> wrote:
> > hi,
> >I recive your reply empty ,Please can you do it again.
> >
> > Thanks
> > umer
> >
> >
> >
> > > Date: Tue, 24 Jan 2012 00:35:18 -0800
> > > Subject: [android-developers] Re: Encoder???
> > > From: psk...@gmail.com
> > > To: android-developers@googlegroups.com
> >
> > > muhammad.ume...@hotmail.com wrote:
> > > > hi,
> > > >Please anyone tell me that, which encoder i can use on
> > > > onPreviewFrame to create a video, and i want to send this encoded
> > > > video to network, please suggest me which encoder that android
> > > > support.
> >
> > > > Thanks and Regards
> >
> > > > umer
> >
> > > --
> > > You received this message because you are subscribed to the Google
> > > Groups "Android Developers" group.
> > > To post to this group, send email to android-developers@googlegroups.com
> > > To unsubscribe from this group, send email to
> > > android-developers+unsubscr...@googlegroups.com
> > > For more options, visit this group at
> > >http://groups.google.com/group/android-developers?hl=en
> 
> sorry, I wanted to say to use MediaRecorder
> 
> pskink
> 
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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
> hi,
>   Thanks for your kind reply, I studied about MediaRecorder to capture
> video, but i want to send video to my server (TCP socket) live. and save
>  this video on a file.
>
>
>
>
>
> also i found that, the ParcelFileDescriptor.fromSocket(socket) can be
> use to send the video but i don't know, how to recieve it on server
> side. if you have any idea about please reply
>
>
> me.
> e.g,
>pfd = ParcelFileDescriptor.fromSocket(socket);
>recorder.setOutputFile(pfd.getFileDescriptor());
>
>
>

http://mattakis.com/blog/kisg/20090708/broadcasting-video-with-android-without-writing-to-the-file-system

pskink

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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
>
>
>
>
> also i found that, the ParcelFileDescriptor.fromSocket(socket) can be
> use to send the video but i don't know, how to recieve it on server
> side. if you have any idea about please reply
>
>
> me.
> e.g,
>pfd = ParcelFileDescriptor.fromSocket(socket);
>recorder.setOutputFile(pfd.getFileDescriptor());
>
>
>

http://www.mattakis.com/blog/kisg/20090708/broadcasting-video-with-android-without-writing-to-the-file-system

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi,
I go through this blog as you suggest,
 
 
http://www.mattakis.com/blog/kisg/20090708/broadcasting-video-with-android-without-writing-to-the-file-system

guy, just told how to send from android on network but doesn't told how to 
receive it on PC server.

Thanks and Regards
umer

 

> Date: Tue, 24 Jan 2012 01:52:23 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> >
> >
> >
> >
> > also i found that, the ParcelFileDescriptor.fromSocket(socket) can be
> > use to send the video but i don't know, how to recieve it on server
> > side. if you have any idea about please reply
> >
> >
> > me.
> > e.g,
> >pfd = ParcelFileDescriptor.fromSocket(socket);
> >recorder.setOutputFile(pfd.getFileDescriptor());
> >
> >
> >
> 
> http://www.mattakis.com/blog/kisg/20090708/broadcasting-video-with-android-without-writing-to-the-file-system
> 
> -- 
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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
> hi,
> I go through this blog as you suggest,
>
>  
> http://www.mattakis.com/blog/kisg/20090708/broadcasting-video-with-android-without-writing-to-the-file-system
>
> guy, just told how to send from android on network but doesn't told how to 
> receive it on PC server.
>
> Thanks and Regards
> umer
>
>
>

when you tried to send frame by frame as a Bitmap, did you have server
side implemented?

now there should be no difference:  just write down to the file every
bit if data you got from the android client

pskink

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi skink,
 Thanks for your reply, I am using server side code to receive each 
frame is perfect. but when i use this server for mediaRecorder it gives the 
invalid stream header: , i am using 
ObjectInputStream to receive the data. on client side (android), i  am using 
the ParcelFileDescriptor.fromSocket(socket), is ParcelFileDescriptor send video 
in object form? 

 here is my server side code.

try
   {
 // create stream to Network
 ois = new ObjectInputStream(clientSocket.getInputStream());

   // create stream to file
FileOutputStream fos = new FileOutputStream("video.3gp", true);
ObjectOutputStream out = new ObjectOutputStream(fos);

  while(true)
  {

 // read data in object form from network
byte [] byt = (byte[]) ois.readObject();

  // write data to file 
 out.write(byt);
 out.flush();
 }
}
catch (Exception e)
{
  System.out.println(e.getMessage());
 }


Thanks again,





> Date: Wed, 25 Jan 2012 00:17:28 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
>  
> 
> 
> Muhammad UMER wrote:
> > hi,
> > I go through this blog as you suggest,
> >
> >  
> > http://www.mattakis.com/blog/kisg/20090708/broadcasting-video-with-android-without-writing-to-the-file-system
> >
> > guy, just told how to send from android on network but doesn't told how to 
> > receive it on PC server.
> >
> > Thanks and Regards
> > umer
> >
> >
> >
> 
> when you tried to send frame by frame as a Bitmap, did you have server
> side implemented?
> 
> now there should be no difference:  just write down to the file every
> bit if data you got from the android client
> 
> pskink
> 
> -- 
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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
> hi skink,
>  Thanks for your reply, I am using server side code to receive 
> each frame is perfect. but when i use this server for mediaRecorder it gives 
> the invalid stream header: , i am using
> ObjectInputStream to receive the data. on client side (android), i  am using 
> the ParcelFileDescriptor.fromSocket(socket), is ParcelFileDescriptor send 
> video in object form?
>
>  here is my server side code.
>
> try
>{
>  // create stream to Network
>  ois = new ObjectInputStream(clientSocket.getInputStream());
>
>// create stream to file
> FileOutputStream fos = new FileOutputStream("video.3gp", 
> true);
> ObjectOutputStream out = new ObjectOutputStream(fos);
>
>   while(true)
>   {
>
>  // read data in object form from network
> byte [] byt = (byte[]) ois.readObject();
>
>   // write data to file
>  out.write(byt);
>  out.flush();
>  }
> }
> catch (Exception e)
> {
>   System.out.println(e.getMessage());
>  }
>
>


Dont use ObjectInputStream, just use InputStream

pskink

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi skink,
  Now i have used inputstream but it give me Exeption (null) at 
while((bytesRead = is.read(buffer)) != -1) on server side.

here server side code that i am using.
 try
 {
// create stream to Network
  InputStream in = clientSocket.getInputStream();

   // create stream to file
  OutputStream os = new FileOutputStream("video.3gp", true);

  byte[] buffer = new byte[4096];  
int bytesRead; 
while((bytesRead = is.read(buffer)) != -1)
  {

   os.write(buffer, 0, bytesRead);


 }
is.close();  
os.close(); 
  }
   catch (Exception e)
   {
System.out.println(e.getMessage());
   }

Regards.


> Date: Wed, 25 Jan 2012 01:47:56 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > hi skink,
> >  Thanks for your reply, I am using server side code to receive 
> > each frame is perfect. but when i use this server for mediaRecorder it 
> > gives the invalid stream header: , i am using
> > ObjectInputStream to receive the data. on client side (android), i  am 
> > using the ParcelFileDescriptor.fromSocket(socket), is ParcelFileDescriptor 
> > send video in object form?
> >
> >  here is my server side code.
> >
> > try
> >{
> >  // create stream to Network
> >  ois = new ObjectInputStream(clientSocket.getInputStream());
> >
> >// create stream to file
> > FileOutputStream fos = new FileOutputStream("video.3gp", 
> > true);
> > ObjectOutputStream out = new ObjectOutputStream(fos);
> >
> >   while(true)
> >   {
> >
> >  // read data in object form from network
> > byte [] byt = (byte[]) ois.readObject();
> >
> >   // write data to file
> >  out.write(byt);
> >  out.flush();
> >  }
> > }
> > catch (Exception e)
> > {
> >   System.out.println(e.getMessage());
> >  }
> >
> >
> 
> 
> Dont use ObjectInputStream, just use InputStream
> 
> pskink
> 
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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
> hi skink,
>   Now i have used inputstream but it give me Exeption (null) at 
> while((bytesRead = is.read(buffer)) != -1) on server side.
>
> here server side code that i am using.
>  try
>  {
> // create stream to Network
>   InputStream in = clientSocket.getInputStream();
>
>// create stream to file
>   OutputStream os = new FileOutputStream("video.3gp", true);
>
>   byte[] buffer = new byte[4096];
> int bytesRead;
> while((bytesRead = is.read(buffer)) != -1)
>   {
>
>os.write(buffer, 0, bytesRead);
>
>
>  }
> is.close();
> os.close();
>   }
>catch (Exception e)
>{
> System.out.println(e.getMessage());
>}
>
>

what's stack trace? tried to debug it?

pskink

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi skink,
  Sorry it was my mistake at object of InputStream, that is 'is ' 
but i was using 'in'. Now it's receive the data and create a video.3gp file but 
it's not a playable(corrupted). Now what can you suggest me, and Thanks a lot 
for your kind help.

Thanks and Regards,
umer 




> Date: Wed, 25 Jan 2012 03:58:29 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > hi skink,
> >   Now i have used inputstream but it give me Exeption (null) at 
> > while((bytesRead = is.read(buffer)) != -1) on server side.
> >
> > here server side code that i am using.
> >  try
> >  {
> > // create stream to Network
> >   InputStream in = clientSocket.getInputStream();
> >
> >// create stream to file
> >   OutputStream os = new FileOutputStream("video.3gp", true);
> >
> >   byte[] buffer = new byte[4096];
> > int bytesRead;
> > while((bytesRead = is.read(buffer)) != -1)
> >   {
> >
> >os.write(buffer, 0, bytesRead);
> >
> >
> >  }
> > is.close();
> > os.close();
> >   }
> >catch (Exception e)
> >{
> > System.out.println(e.getMessage());
> >}
> >
> >
> 
> what's stack trace? tried to debug it?
> 
> pskink
> 
> -- 
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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
> hi skink,
>   Sorry it was my mistake at object of InputStream, that is 'is ' 
> but i was using 'in'. Now it's receive the data and create a video.3gp file 
> but it's not a playable(corrupted). Now what can you suggest me, and Thanks a 
> lot for your kind help.
>


now read again the link I already posted in that thread - this time
read it caredully

pskinj

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi skink,
I read the link that you have posted. In a blog describe the mdat 
atoms that leave some spaces also not write the header. what is it, i haven't 
studied about it. How can i write the header of the file and the mdat atom 
spaces. 


Thanks



> Date: Wed, 25 Jan 2012 06:34:11 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > hi skink,
> >   Sorry it was my mistake at object of InputStream, that is 'is 
> > ' but i was using 'in'. Now it's receive the data and create a video.3gp 
> > file but it's not a playable(corrupted). Now what can you suggest me, and 
> > Thanks a lot for your kind help.
> >
> 
> 
> now read again the link I already posted in that thread - this time
> read it caredully
> 
> pskinj
> 
> -- 
> You received this message because you are subscribed to the Google
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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
> hi skink,
> I read the link that you have posted. In a blog describe the mdat 
> atoms that leave some spaces also not write the header. what is it, i haven't 
> studied about it. How can i write the header of the file and the mdat atom 
> spaces.
>
>
>

you have to figure it out by yourself

try googling

pskink

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi skink,
I google to much about the moov and mdat atoms and i found that the 
3gp file consist of some atoms order by ftyp-moov-mdat or ftyp-mdat-moov,  
mdate are our orignal sound and video where moov atom are use to make the file 
playable. so as i found that my server have to write moov atoms atoumaticaly 
but i don't know how to write these moov atoms to my file. please help me 
because this is my part of the project and i have to submit it after 2 weeks. 
it's to much complected to me to write myself. Please show me some example of 
this or send me an appropriate link.You have helped me a lot and i hope you can 
help me again.

thanks and Regards,

umer


> Date: Wed, 25 Jan 2012 09:07:58 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > hi skink,
> > I read the link that you have posted. In a blog describe the 
> > mdat atoms that leave some spaces also not write the header. what is it, i 
> > haven't studied about it. How can i write the header of the file and the 
> > mdat atom spaces.
> >
> >
> >
> 
> you have to figure it out by yourself
> 
> try googling
> 
> pskink
> 
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Re: [android-developers] Re: Encoder???

[skink]

step #1:
see normal .3gp (written by your MediaRecorder) file header, for
instance:
# hexdump -C normal_file.3gp | less
  001c66747970 336770340300  |ftyp3gp4|
0010  336770346d703431 336770360007a42f  |3gp4mp413gp6.../|
0020  6d6461743c911716 be6679e1e001e7af  |mdat

RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi pskink, Thanks for your help,It gives more concept.  Please can 
you show me the example that how can i implement these moov atom and ftyp while 
writing the file to the server side.
Regards,umer 

> Date: Thu, 26 Jan 2012 11:26:35 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> step #1:
> see normal .3gp (written by your MediaRecorder) file header, for
> instance:
> # hexdump -C normal_file.3gp | less
>   001c66747970 336770340300  |ftyp3gp4|
> 0010  336770346d703431 336770360007a42f  |3gp4mp413gp6.../|
> 0020  6d6461743c911716 be6679e1e001e7af  |mdat<fy.|
> 
> step #2: compare it to the file written by your server:
> # hexdump -C server_file.3gp | less
>      ||
> 0010   0008  ||
> 0020  6d6461743c911716 be6679e1e001e7af  |mdat<fy.|
> 
> as you can see you have to modify first 32 bytes: where bytes [0..27]
> you can just copy and bytes [28.. 31] should contain the offset where
> moov atom starts - you can learn how to find that offset by playing
> with python script called qtfaststart.py - run it with option --list,
> for example:
> # python qtfaststart.py --list normal_file.3gp
> ftyp 0
> mdat 1c
> moov 7a44b
> 
> it will show atoms and their sizes but it is trivial to change it to
> show atom's positions (like above):
> 
> for atom, pos, size in index:
> print "%s %x" % (atom, pos)
> 
> 
> pskink
> 
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Re: [android-developers] Re: Encoder???

[skink]

Muhammad UMER wrote:
> hi pskink, Thanks for your help,It gives more concept.  Please 
> can you show me the example that how can i implement these moov atom and ftyp 
> while writing the file to the server side.

http://docs.oracle.com/javase/1.4.2/docs/api/java/io/RandomAccessFile.html

pskink

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi pskink,
 Sorry, you have give me the link of how to write the file, but i 
want the example, that show how to write the ftyp and moov atom to the file.Can 
you share me a link.

Regards,
umer

> Date: Fri, 27 Jan 2012 03:25:12 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > hi pskink, Thanks for your help,It gives more concept.  Please 
> > can you show me the example that how can i implement these moov atom and 
> > ftyp while writing the file to the server side.
> 
> http://docs.oracle.com/javase/1.4.2/docs/api/java/io/RandomAccessFile.html
> 
> pskink
> 
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Re: [android-developers] Re: Encoder???

[skink]

Use writeInt(int v)

pskink

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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

Hi pskink,

In my case 

 normal .3gp (written by my MediaRecorder) file header, for
instance:
# hexdump  -C normal_file.3gp

 001C66747970 336770340300 |ftyp3gp4|
0010 336770346D703431 3367703600090CFB |3gp4mp413gp6|
0020 6D6461743C911716 BE6679E1E001E7AF |mdat<fy.|
.
.

 and i compare it to the file written by my server:
# hexdump -C server_file.3gp | less
  3030203030203030 2030302030302030  ||
0010  3020303020303020 3030203030203030  ||
0020  2030302030302030 3020303020303020  ||
0030  3030203030203030 2030302030302030  || 
0040  3020303020303020 3030203030203030  ||
0050  2030302020202020 2020202020202020  |..  |
0060  2020202020202020 2020202020202020  ||
0070  2020086D64617420 2020202020202020  |  .mdat |
0080  2020202020202020 2020202020202020  ||
0090  202020202020086D 646174202001B610  | .mdat...|
.
.
.

you said in previous discussion that i have to modify first 32 bytes
where i have to copy byts[0- 27] to the file.
1) what it mean? like this all 

 001C66747970 336770340300 |ftyp3gp4|
0010 336770346D703431 3367703600090CFB |3gp4mp413gp6|
0020 6D6461743C911716 BE6679E1E001E7AF |mdat<fy.|
.
.
.
0270

or only the middle part (-C)(001C66747970 336770340300) of it. 



2) how to copy, Is it in the form of string?

3)and i don't understand about bytes [28..31]. where from the moov atom starts. 
what is 
paython?

Please clear me all these things then i will able to write the file.

Regards,

umer


> Date: Sat, 28 Jan 2012 07:27:07 -0800
> Subject: Re: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> Use writeInt(int v)
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

> Date: Mon, 30 Jan 2012 21:35:50 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> On 30 Sty, 07:08, Muhammad UMER  wrote:
> > Hi pskink,
> >
> > In my case
> >
> >  normal .3gp (written by my MediaRecorder) file header, for
> > instance:
> > # hexdump  -C normal_file.3gp
> >
> >  001C66747970 336770340300 |ftyp3gp4|
> > 0010 336770346D703431 3367703600090CFB |3gp4mp413gp6|
> > 0020 6D6461743C911716 BE6679E1E001E7AF |mdat > .
> > .
> 
> this is ok - the header is exactly the same like mine
> 
> >
> >  and i compare it to the file written by my server:
> > # hexdump -C server_file.3gp | less
> >   3030203030203030 2030302030302030  ||
> > 0010  3020303020303020 3030203030203030  ||
> > 0020  2030302030302030 3020303020303020  ||
> > 0030  3030203030203030 2030302030302030  ||
> > 0040  3020303020303020 3030203030203030  ||
> > 0050  2030302020202020 2020202020202020  |..  |
> > 0060  2020202020202020 2020202020202020  ||
> > 0070  2020086D64617420 2020202020202020  |  .mdat |
> > 0080  2020202020202020 2020202020202020  ||
> > 0090  202020202020086D 646174202001B610  | .mdat...|
> > .
> > .
> 
> this is WRONG: "mdat" sequence should start from the offset 0x20 and
> not 0x73
 
What can i do, to start mdat from offset 0x20?

> 
> > .
> >
> > you said in previous discussion that i have to modify first 32 bytes
> > where i have to copy byts[0- 27] to the file.
> 
> you have to copy first 28 bytes from normal_file to the first 28 bytes
> of server_file

Please can you pacify(highlight) these 28 bytes, that i have to copy?
 

> 
> > 2) how to copy, Is it in the form of string?
> 
> again, RandomAccessFile
> 
> >
> > 3)and i don't understand about bytes [28..31]. where from the moov atom 
> > starts. whatt is
> > paython?
> 
> you have to find where the moov atom starts in your server_file, is it
> so difficult?

I don't know from where the moov atom start?

> 
> pskink
> 


umer
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

> Date: Mon, 30 Jan 2012 23:01:31 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> On Jan 31, 7:31 am, Muhammad UMER  wrote:
> > What can i do, to start mdat from offset 0x20?
> >
> 
> your server side doesn't write your data correctly - you can use
> wireshark to see whats on the wire
> 

Thanks, i got my error and also i resolve it. now mdat at offset 0x20.


> 
> > > you have to copy first 28 bytes from normal_file to the first 28 bytes
> > > of server_file
> >
> > Please can you pacify(highlight) these 28 bytes, that i have to copy?
> >
> >
> 
> what to highlight? You have to copy bytes 0, 1, 2, .. 26, 27 of the
> normal_file to the beginning of the server_file, thats all
>
Because i haven't write a video file before, that's why i say you to highlight 
these bytes. i mean to say how to get these bytes from normal file. may i have 
to hard code these bytes.
like
e.g
String s = " ftyp3gp4";
byte data[] = s.getBytes();


and write this byte array to the file.
 
> 
> > I don't know from where the moov atom start?
> >
> 
> yes, but you have to find it in the file, just google about pattern
> search or something
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi pskink,
  
So as i understand that relative offset is the reference of the moov atom 
(where the moov atom starts in a file). isn't it? 
and 
  How can you calculate this offset,
  324070 - 32 == 0x0004f1c6
  
What is 32 and how 0x0004f1c6 comes?

have you done this, through programming?

Regards,

umer


> Date: Thu, 2 Feb 2012 01:35:02 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> On 2 Lut, 08:32, Muhammad UMER  wrote:
> > Hi pskink,
> >
> > I have searched the moov atoms,
> >
> > The moov atoms in
> > the file (created by mediarecorder VIDEO0002.3GP) is at the end of the file 
> > and ftyp at the beginning. As I attached the image VIDEO0002.png
> > And the moov atoms
> > in the file (created by server) is also at the end of the file along with 
> > ftyp.
> > As I attached the image VIDEO.png
> > The 3gp file consists of ftyp-moov-mdat  or
> > ftyp-mdat-moov  order.
> >
> > So I realize that my server have to write just  ftyp at
> > the beginning of the file. Please correct me if I am wrong.
> > Regards,
> > umer
> 
> as i said before:
> 
> "as you can see you have to modify first 32 bytes: where bytes
> [0..27]
>  you can just copy and bytes [28.. 31] should contain the offset
> where
>  moov atom starts"
> 
> just copy first 28 bytes without any modifications and bytes [28.. 31]
> should contain the offset where moov atom starts - its relative to
> mdat atom e.g:
> 
> this is after modification my server_file.3gp file:
> 
> #grep -aobE "ftyp|mdat|moov" server_file.3gp
> 4:ftyp
> 32:mdat
> 324042:ftyp
> 324070:moov
> 
> so bytes [28.. 31]  - the relative offset should be:
> 324070 - 32 == 0x0004f1c6
> 
> #hexdump -C server_file.3gp | less
>   001c66747970336770340300  |ftyp3gp4|
> 0010  336770346d703431336770360004f1c6  |3gp4mp413gp6|
> 
> see 0004f1c6 at the end - its your offset
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

Basically i don't understand perfectly this,

  001c66747970 336770340300  |ftyp3gp4 |
0010  336770346d703431 336770360007a42f   |3gp4mp413gp6.../|
0020  6d6461743c911716 be6679e1e001e7af   |mdat Date: Fri, 3 Feb 2012 08:37:49 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > hi pskink,
> >
> > So as i understand that relative offset is the reference of the moov atom 
> > (where the moov atom starts in a file). isn't it?
> > and
> >   How can you calculate this offset,
> >   324070 - 32 == 0x0004f1c6
> >
> > What is 32 and how 0x0004f1c6 comes?
> >
> > have you done this, through programming?
> >
> > Regards,
> >
> > umer
> >
> >
> 
> read my previous post, carefully
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

Hi pskink,

  4:ftyp
 

32:mdat
 

324042:ftyp
 

324070:moov



 Ok 4 is starting bytes of ftyp, 324070 is starting bytes of moov, 32 is 
starting bytes of mdat etc.

so it means that subtract the starting position of mdat  from starting position 
of moov. then converts the bytes to hexadecimal form. that is our offset.

moov - mdat == offset
324070 - 32 == 0x0004f1c6

but if it is true, then our moov starting bytes changes every time how can find 
that?

Regards,

umer



> Date: Fri, 3 Feb 2012 09:43:07 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > Basically i don't understand perfectly this,
> >
> >   001c66747970 336770340300  |ftyp3gp4 |
> > 0010  336770346d703431 336770360007a42f   |3gp4mp413gp6.../|
> > 0020  6d6461743c911716 be6679e1e001e7af   |mdat >
> > can  you please explain it. Thanks
> >
> > Regards,
> > umer
> >
> >
> >
> 
> this shows the complete header (32 bytes) of the modified file
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

 I think, my server have to edit this file through RandomAccessFile after when 
the server handle the inputstream form android. So i have to put a condition to 
check the moov atom, when the moov atom find it get it's index. then edit the 
file through RandomAccessFile to write bytes [0..27] and the offset of moov 
atom at [28...31].

please tell me how can i copy these [0...27] bytes. is it in the form of 
string? Thanks

Regards,

umer



> Date: Sat, 4 Feb 2012 04:03:46 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > Hi pskink,
> >
> >   4:ftyp
> >
> >
> > 32:mdat
> >
> >
> > 324042:ftyp
> >
> >
> > 324070:moov
> >
> >
> >
> >  Ok 4 is starting bytes of ftyp, 324070 is starting bytes of moov, 32 is 
> > starting bytes of mdat etc.
> >
> > so it means that subtract the starting position of mdat  from starting 
> > position of moov. then converts the bytes to hexadecimal form. that is our 
> > offset.
> >
> > moov - mdat == offset
> > 324070 - 32 == 0x0004f1c6
> >
> > but if it is true, then our moov starting bytes changes every time how can 
> > find that?
> >
> > Regards,
> >
> > umer
> >
> >
> >
> 
> yes, it's true: you have to find moov index each time you write your
> file on the server side
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

Hi pskink,

  Thank you for your kind help. I have done this app with your 
help. I have handle the file header on server side and now 3gp file is 
playable. You are such a great great great. man. 

Thanks and Regards,
umer

  

> Date: Sat, 4 Feb 2012 05:10:40 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > I think, my server have to edit this file through RandomAccessFile after 
> > when the server handle the inputstream form android. So i have to put a 
> > condition to check the moov atom, when the moov atom find it get it's 
> > index. then edit the file through RandomAccessFile to write bytes [0..27] 
> > and the offset of moov atom at [28...31].
> >
> > please tell me how can i copy these [0...27] bytes. is it in the form of 
> > string? Thanks
> >
> > Regards,
> >
> > umer
> >
> 
> 
> http://docs.oracle.com/javase/tutorial/essential/io/
> 
> pskink
> 
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

Hi pskink,
  How are you, I am disturbing you again sorry for that. I want 
this application on at most 10 mobiles, so how can i apply the user 
authentication on this application to restrict the other user.
that will not use this application also not connect to server.

Thanks

umer


> Date: Mon, 13 Feb 2012 08:20:22 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > Hi pskink,
> >
> >   Thank you for your kind help. I have done this app with your 
> > help. I have handle the file header on server side and now 3gp file is 
> > playable. You are such a great great great. man.
> >
> > Thanks and Regards,
> > umer
> >
> >
> >
> >
> 
> 
> you are welcome, no problem
> 
> pskink
> 
> -- 
> You received this message because you are subscribed to the Google
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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi pskink,
  I want Mediarecorder documantation or report on Mediarecorder can 
you provide me.

Thanks

From: muhammad.ume...@hotmail.com
To: android-developers@googlegroups.com
Subject: RE: [android-developers] Re: Encoder???
Date: Wed, 15 Feb 2012 17:56:24 +0500







Hi pskink,
  How are you, I am disturbing you again sorry for that. I want 
this application on at most 10 mobiles, so how can i apply the user 
authentication on this application to restrict the other user.
that will not use this application also not connect to server.

Thanks

umer


> Date: Mon, 13 Feb 2012 08:20:22 -0800
> Subject: [android-developers] Re: Encoder???
> From: psk...@gmail.com
> To: android-developers@googlegroups.com
> 
> 
> 
> Muhammad UMER wrote:
> > Hi pskink,
> >
> >   Thank you for your kind help. I have done this app with your 
> > help. I have handle the file header on server side and now 3gp file is 
> > playable. You are such a great great great. man.
> >
> > Thanks and Regards,
> > umer
> >
> >
> >
> >
> 
> 
> you are welcome, no problem
> 
> pskink
> 
> -- 
> You received this message because you are subscribed to the Google
> Groups "Android Developers" group.
> To post to this group, send email to android-developers@googlegroups.com
> To unsubscribe from this group, send email to
> android-developers+unsubscr...@googlegroups.com
> For more options, visit this group at
> http://groups.google.com/group/android-developers?hl=en
  




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RE: [android-developers] Re: Encoder???

[Muhammad UMER]

hi pskink,


  I want Mediarecorder documantation or report on Mediarecorder can 
you provide me.





Thanks


  

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Re: [android-developers] Re: Encoder Mp3

[TreKing]

On Tue, Dec 13, 2011 at 1:47 AM, Giuseppe wrote:

> Hi TreKing, of course I tried Google
>

Alright - you should always indicated this along with everything else
you've tried to give people a understanding of what you've tried and what's
not working for you.


> I found lame4android, tried with their app on the market and with their
> source code, no one can convert WAV file created by the Android encoder. I
> tried also to find something about FFMPEG porting, but nothing!!
>
> Any help?
>

I can't help you, I don't know anything about this audio stuff, but if you
would elaborate on what you're doing, what you have done so far, what
specifically you're having trouble with, etc, you might get a better
response. Narrowing down your problem to something very specific will help
you get help.

Good luck.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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Re: [android-developers] Re: Encoder Mp3

[Michael Leung]

I think mp3 encoder is hard to find, because mp3 encoding is got patent in
some countries.

On Tue, Dec 13, 2011 at 11:29 PM, TreKing  wrote:

> On Tue, Dec 13, 2011 at 1:47 AM, Giuseppe wrote:
>
>> Hi TreKing, of course I tried Google
>>
>
> Alright - you should always indicated this along with everything else
> you've tried to give people a understanding of what you've tried and what's
> not working for you.
>
>
>> I found lame4android, tried with their app on the market and with their
>> source code, no one can convert WAV file created by the Android encoder. I
>> tried also to find something about FFMPEG porting, but nothing!!
>>
>> Any help?
>>
>
> I can't help you, I don't know anything about this audio stuff, but if you
> would elaborate on what you're doing, what you have done so far, what
> specifically you're having trouble with, etc, you might get a better
> response. Narrowing down your problem to something very specific will help
> you get help.
>
> Good luck.
>
>
> -
> TreKing  - Chicago
> transit tracking app for Android-powered devices
>
>  --
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Michael Leung
http://www.itblogs.info - My IT Blog
http://diary.skynovel.info - My Blog
http://www.michaelleung.info - My Homepage

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