[gst-devel] How to save a stream from a network into a file

sudarshan bisht bisht.sudarshan at gmail.com
Tue Jun 2 06:37:20 CEST 2009 

Hi Zelalem
             Use the following pipeline, here i have set the proper caps
between rtph263pdepay and avimux . Make sure at whatever width, height and
framerate you are capturing at source side use the same numbers here on
receiver side also.  This works on my machine. ( I think this suggestion i
have already given earlier but i missed (fraction) part in framerate caps )


               gst-launch udpsrc port=5000
caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H263-1998"
num-buffers=5000 ! queue ! rtph263pdepay !
'video/x-h263,width=320,height=240,framerate=(fraction)25/1' ! avimux !
filesink location=test.avi


On Mon, Jun 1, 2009 at 7:08 PM, sudarshan bisht
<bisht.sudarshan at gmail.com>wrote:

> Hi ,
>
>   Actually i treid following pipeline on my machine , and it works . ( I
> dont have webcam so tried it using videotestsrc) .
>
> gst-launch videotestsrc !
> 'video/x-raw-yuv,width=320,heigh=240,framerate=(fraction)25/1,format=(fourcc)I420'
> !  ffenc_h263p ! rtph263ppay ! udpsink port=5000
>
>   gst-launch  udpsrc port=5000
> caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H263-1998"
> num-buffers=5000 ! queue ! rtph263pdepay ! ffdec_h263 ! avimux ! filesink
> location=test.avi
>
>
>  And ensure that u have latest Gstreamer installed .
>
>
>
>
> On Mon, Jun 1, 2009 at 5:43 PM, Zelalem Sintayehu <zelalems at hotmail.com>wrote:
>
>>  Hi Sudarshan, thank you again for the prompt response. I tried your
>> suggestion but still got error. When i try the first suggestion, I got the
>> following error:
>> WARNING: erroneous pipeline: could not parse caps
>> "video/x-h263,width=176,height=144,framerate=25\"
>> And then I removed the space after 25 (the frame rate - please look at the
>> suggested caps below) and got the following error: WARNING: erroneous
>> pipeline: could not link rtph263pdepay0 to avimux0. It considers as if the
>> caps is not there.
>>
>> When I use the second suggestion again with the space after 263, i got the
>> same kind of error as above. When i delete the space, I got the following
>> error:
>> streaming task paused, reason not-negotiated (-4)
>>
>> I don't know what is hapening.
>>
>> BTW, on the sender side I used the following command:
>> gst-launch v4l2src ! video/x-raw-rgb,width=320,height=240 ! queue !
>> videorate ! video/x-raw-rgb,rate=15/1 ! ffmpegcolorspace! ffenc_h263p !
>> rtph263ppay ! udpsink port=5000
>>
>> I hope this will give you the clue about the problem. I run the command on
>> Ubuntu Interpid.
>>
>> Thank you.
>>
>> - Zelalem S.
>>
>>
>> ------------------------------
>> Date: Mon, 1 Jun 2009 13:52:34 +0530
>>
>> From: bisht.sudarshan at gmail.com
>> To: gstreamer-devel at lists.sourceforge.net
>> Subject: Re: [gst-devel] How to save a stream from a network into a file
>>
>> Hi ,
>>
>>  for exapmle try these  :-
>>
>>          gst-launch-0.10 udpsrc port=5000 caps="application/x-rtp,
>> media=(string)video,clock-rate=(int)90000, encoding-name=(string)H263-1998"
>> num-buffers=5000 ! queue ! rtph263pdepay !
>> 'video/x-h263,width=176,height=144,framerate=25 '   !    avimux ! filesink
>> location=test.avi
>>
>> or
>>
>>  gst-launch-0.10 udpsrc port=5000 caps="application/x-rtp,
>> media=(string)video,clock-rate=(int)90000, encoding-name=(string)H263-1998"
>> num-buffers=5000 ! queue ! rtph263pdepay !  'video/x-h263 '   !    avimux !
>> filesink location=test.avi
>>
>>
>>
>>
>> On Mon, Jun 1, 2009 at 1:00 PM, Zelalem Sintayehu <zelalems at hotmail.com>wrote:
>>
>> Hi Sudarshan, thank you for your prompt response. But, I am new to gstream
>> and I think I don't understand your comment. Sorry to bother you again. I
>> tried to set the caps property of the rtpdepayloader by putting
>> caps="application/x-rtp, media...." for the rtph263pdepay element, but I get
>> the following error: WARNING: erroneous pipeline: no property "caps" in
>> element "rtph263pdepay0". So, do i need to include a new element in between
>> the two elements (rtp263depay and avimux) or how can i provide caps?
>>
>> Thank you again for your assistance.
>>
>> - Zelalem S.
>>
>> ------------------------------
>> Date: Sun, 31 May 2009 10:58:31 +0530
>> From: bisht.sudarshan at gmail.com
>> To: gstreamer-devel at lists.sourceforge.net
>> Subject: Re: [gst-devel] How to save a stream from a network into a file
>>
>>
>>
>> Hi,           Hi ,,
>>          Try providing caps between  rtph263pdepay and avimux .
>>
>>
>>
>> On Sat, May 30, 2009 at 8:28 PM, Zelalem Sintayehu <zelalems at hotmail.com>wrote:
>>
>> Hi, I was trying to transfer video and audio using network. I used teh
>> examples from the net to do that and succeeded. But now I wanted to save the
>> stream into file and faced with some problem. Please look at the following
>> command:
>>
>> gst-launch-0.10 udpsrc port=5000 caps="application/x-rtp,
>> media=(string)video,clock-rate=(int)90000, encoding-name=(string)H263-1998"
>> num-buffers=5000 ! queue ! rtph263pdepay ! ffdec_h263 ! xvimagesink   -----
>> this is what i used to accept and display a video stream.
>>
>> So, to save the stream into a file I changed the last two elements (the
>> ffmpeg decoder and xvimake sink). I thought that since the packet coming
>> from the other machine is already encoded in h263p codec, replacing these
>> two elements  with the following elements would solve my problem: I used
>> these elments: avimux ! filesink location=testnet.avi . That is, i connected
>> the rtph263pdepay element to the avimux element and to the file sink element
>> sequentially as follows.
>>
>>  gst-launch-0.10 udpsrc port=5000 caps="application/x-rtp,
>> media=(string)video,clock-rate=(int)90000, encoding-name=(string)H263-1998"
>> num-buffers=5000 ! queue ! rtph263pdepay ! avimux ! filesink
>> location=test.avi
>>
>> But I got an error, that says: streaming task paused, reason
>> not-negotiated (-4)
>>
>> Please help me on how I can save a stream.
>>
>> Thank you.
>>
>> - Zelalem S.
>>
>>
>>
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>> Regards,
>>
>> Sudarshan Bisht
>>
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>>
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>
>
> --
> Regards,
>
> Sudarshan Bisht
>



-- 
Regards,

Sudarshan Bisht
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