[gst-devel] help: about rtp

[thiagoss]

On Wed, Apr 15, 2009 at 12:07 AM, Zibo SHI <shizibo at gmail.com> wrote:

> hi, all. I'm trying the rtp plugin refer to the doc at:
>
>
> http://webcvs.freedesktop.org/gstreamer/gst-plugins-good/gst/rtp/README?revision=1.13&view=markup
>
> Here's my simple pipeline:
> gst-launch -v filesrc location=shake.mp4 ! qtdemux name=d \
> d. ! { queue ! rtpmp4vpay ! udpsink port=5000 } \
> d. ! { queue ! rtpmp4gpay ! udpsink port=5002 }
>
> but after it's run, here is the output:
>
> Setting pipeline to PAUSED ...
> /pipeline0/queue0.sink: caps = video/mpeg, mpegversion=(int)4,
> systemstream=(boolean)false,
> codec_data=(buffer)000001b001000001b58913000001000000012000c48d88007d0a041e1463000001b24c61766335312e34302e34,
> width=(int)320, height=(int)240, framerate=(fraction)15/1
> /pipeline0/queue0.src: caps = video/mpeg, mpegversion=(int)4,
> systemstream=(boolean)false,
> codec_data=(buffer)000001b001000001b58913000001000000012000c48d88007d0a041e1463000001b24c61766335312e34302e34,
> width=(int)320, height=(int)240, framerate=(fraction)15/1
> /pipeline0/rtpmp4vpay0.src: caps = application/x-rtp, media=(string)video,
> payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES,
> ssrc=(guint)3831296950, clock-base=(guint)4106776350,
> seqnum-base=(guint)53267, profile-level-id=(string)1,
> config=(string)000001b001000001b58913000001000000012000c48d88007d0a041e1463000001b24c61766335312e34302e34
> /pipeline0/rtpmp4vpay0.sink: caps = video/mpeg, mpegversion=(int)4,
> systemstream=(boolean)false,
> codec_data=(buffer)000001b001000001b58913000001000000012000c48d88007d0a041e1463000001b24c61766335312e34302e34,
> width=(int)320, height=(int)240, framerate=(fraction)15/1
> /pipeline0/queue1.sink: caps = audio/mpeg, mpegversion=(int)4,
> framed=(boolean)true, codec_data=(buffer)1290, rate=(int)32000,
> channels=(int)2
> /pipeline0/queue1.src: caps = audio/mpeg, mpegversion=(int)4,
> framed=(boolean)true, codec_data=(buffer)1290, rate=(int)32000,
> channels=(int)2
> /pipeline0/rtpmp4gpay0.src: caps = application/x-rtp, media=(string)audio,
> payload=(int)96, clock-rate=(int)32000, encoding-name=(string)MPEG4-GENERIC,
> ssrc=(guint)3458294825, clock-base=(guint)2594580451,
> seqnum-base=(guint)42905, encoding-params=(string)2, streamtype=(string)5,
> profile-level-id=(string)2, mode=(string)AAC-hbr, config=(string)1290,
> sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3
> /pipeline0/rtpmp4gpay0.sink: caps = audio/mpeg, mpegversion=(int)4,
> framed=(boolean)true, codec_data=(buffer)1290, rate=(int)32000,
> channels=(int)2



here

>
> /pipeline0/udpsink1.sink: caps = application/x-rtp, media=(string)audio,
> payload=(int)96, clock-rate=(int)32000, encoding-name=(string)MPEG4-GENERIC,
> ssrc=(guint)3458294825, clock-base=(guint)2594580451,
> seqnum-base=(guint)42905, encoding-params=(string)2, streamtype=(string)5,
> profile-level-id=(string)2, mode=(string)AAC-hbr, config=(string)1290,
> sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3



and here

>
> /pipeline0/udpsink0.sink: caps = application/x-rtp, media=(string)video,
> payload=(int)96, clock-rate=(int)90000, encoding-name=(string)MP4V-ES,
> ssrc=(guint)3831296950, clock-base=(guint)4106776350,
> seqnum-base=(guint)53267, profile-level-id=(string)1,
> config=(string)000001b001000001b58913000001000000012000c48d88007d0a041e1463000001b24c61766335312e34302e34



>
> Pipeline is PREROLLING ...
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
>
> According to the doc, there should be udpsink0 and udpsink1, but I only
> have one udpsink in the output.
> Is there anything wrong  with my pipeline? I'm fairly new with gstreamer.
> Can anyone hlep me? Thanks very much.
>

Look again, there they are!


>
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-- 
Thiago Sousa Santos

Embedded Systems and Pervasive Computing Lab (Embedded)
Center of Electrical Engineering and Informatics (CEEI)
Federal University of Campina Grande (UFCG)
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