Re: gstreamer-devel Digest, Vol 30, Issue 27

[Aniruddha-9]

Thanks for your reply. I have written the application and it is working
fine.

Regards
Ani
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Subject: gstreamer-devel Digest, Vol 30, Issue 27

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> Today's Topics:
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>   1. Re: Visualization with Python (Stefan Kost)
>   2. Re: gst-plugins-bad cleanup (Stefan Kost)
>   3. Re: Writting GStreamer Application (Eric Zhang)
>   4. Re: playing video in gstreamer (Eric Zhang)
>   5. Re: Error:couldnot link with RTPBIN (Eric Zhang)
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> Message: 1
> Date: Sun, 09 Nov 2008 18:29:59 +0200
> From: Stefan Kost <[hidden email]>
> Subject: Re: [gst-devel] Visualization with Python
> To: Discussion of the development of GStreamer
> <[hidden email]>
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> Timo schrieb:
>> Hey Eric,
>> Thanks for your answer, but I know near to nothing about C, so it's a
>> bit hard for me.
>>
>> I think I didn't make myself that clear. I don't want to know when the
>> music stops or changes song. But the actual changes in the music (pitch,
>> frequency, etc.), just like a visualizer. But instead of changing colors
>> according to the music, I want to execute commands according to the
>> music.
>> And all of this in Python.
>
> The documentation for the level-element documenta the message and how to
> use it.
>
> Stefan
>
>>
>> Thanks,
>>
>> Timo
>>
>>
>> Eric Zhang schreef:
>>> Hi, Timo:
>>>
>>>     If you don't mind trying playbin2, I know that it will emit signal
>>> `about-to-finish' while changing the playing stuffs to next. You can
>>> connect this signal and do works you want. Playbin hasn't this signal
>>> yet. Refer to <gst-plugin-base>/gst/playback/gstplaybin2.c for more
>>> details.
>>>
>>> Eric
>>>
>>> 2008/9/7 Timo <[hidden email] <mailto:[hidden email]>>
>>>
>>>     Hello, I'm looking for a way to execute commands when music changes.
>>>     Like visualizations in music players, but instead of changing weird
>>>     lines on the screen, I want to do things.
>>>     Now I found out about playbin, but I can't get this to work, and
>>> can't
>>>     find that much documentation about the subject with Python.
>>>     This is a bit that I could figure out, but can't get any further:
>>>     pipeline = gst.element_factory_make('playbin', 'playbin')
>>>     vis = gst.element_factory_make("goom")
>>>     pipeline.set_property('vis-plugin', vis)
>>>
>>>
>>>     And if this is possible, can this also be done without writing a
>>>     plugin
>>>     for a music player? But just use my own program and use the
>>>     soundcard or
>>>     something to hear the sounds? This way I don't have to write a
>>> plugin
>>>     for a couple of players but just use my own GUI.
>>>
>>>
>>>     Thanks in advance,
>>>
>>>     Timo
>>>
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> ------------------------------
>
> Message: 2
> Date: Sun, 09 Nov 2008 18:35:45 +0200
> From: Stefan Kost <[hidden email]>
> Subject: Re: [gst-devel] gst-plugins-bad cleanup
> To: Discussion of the development of GStreamer
> <[hidden email]>
> Cc: [hidden email]
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> hi,
> Stefan Kost schrieb:
>> hi,
>>
>> gst-plugins-base has "examples" as a top-level instead of havinig it
>> under "tests" like gstreamer/gs-plugins-base/gst-plugins-good.
>> Jan, could you move this around? I just added a "dccp" dir under
>> tests/icles/. Not sure it that should be moved to tests/examples/dccp
>> then also.
>
> ping. Any opinion?
>
> Stefan
>
>>
>> thanks!
>> Stefan
>>
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> ------------------------------
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> Message: 3
> Date: Mon, 10 Nov 2008 09:46:33 +0800
> From: "Eric Zhang" <[hidden email]>
> Subject: Re: [gst-devel] Writting GStreamer Application
> To: "Discussion of the development of GStreamer"
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> Hi, gstreamer-devel:
>
>    You prepare the request pad name and call `gst_element_get_request_pad'
> to get this pad. Check out the API manual for more details.
>
> Eric Zhang
>
> 2008/11/7 Aniruddha Anil Chourasia <[hidden email]>
>
>>  Hi All,
>>               I am writing a GStreamer Application for implementing the
>> below pipeline. I know how to set the elements properties, set caps, etc.
>> But what is this "rtpbin.send_rtp_sink_2"? How to set it?
>>
>> "gst-launch gstrtpbin name=rtpbin videotestsrc is-live=1 ! ffenc_mpeg4 !
>> rtpmp4vpay ! rtpbin.send_rtp_sink_2 rtpbin.send_rtp_src_2 ! udpsink
>> port=7000 host=10.60.3.104 name=vrtpsink rtpbin.send_rtcp_src_2 ! udpsink
>> port=7001 host=10.60.3.104 sync=false async=false name=vrtcpsink udpsrc
>> port=7005 name=vrtpsrc ! rtpbin.recv_rtcp_sink_2"
>>
>> I checked with "gst-inspect gstrtpbin". It is mentioned in Pad Templates
>> section.
>> Please suggest...
>>
>>
>> Regards
>> Aniruddha
>>
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> Message: 4
> Date: Mon, 10 Nov 2008 09:40:57 +0800
> From: "Eric Zhang" <[hidden email]>
> Subject: Re: [gst-devel] playing video in gstreamer
> To: "Discussion of the development of GStreamer"
> <[hidden email]>
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> Hi, gstreamer-devel:
>
>    Run the gst-launch with `--gst-debug=3', maybe you can find more clews
> on this problem.
>
> Eric Zhang
>
> 2008/11/8 murugadoss <[hidden email]>
>
>>  Hi,
>> Im trying to play video on mx27 board using gstreamer. I use the below
>> command
>> *gst-launch playbin uri=file:///mnt/nfs/Toyata_Human_Touch.mpg
>> *It display an error as,
>> Setting pipeline to PAUSED ...
>> Pipeline is PREROLLING ...
>> ERROR: from element /playbin0/source: Internal data flow error.
>> Additional debug info:
>> gstbasesrc.c(1642): gst_base_src_loop (): /playbin0/source:
>> streaming task paused, reason not-negotiated (-4)
>> ERROR: pipeline doesn't want to preroll.
>> Setting pipeline to NULL ...
>> FREEING pipeline ...
>>
>> sometimes it plays the only the audio and no video.
>> Any idea is appreciated!!
>> Thank u
>>
>> --
>> Regards
>> V.Murugadoss
>>
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> Message: 5
> Date: Mon, 10 Nov 2008 09:32:09 +0800
> From: "Eric Zhang" <[hidden email]>
> Subject: Re: [gst-devel] Error:couldnot link with RTPBIN
> To: [hidden email], "Discussion of the development of
> GStreamer" <[hidden email]>
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> Hi, ajitjohn:
>
>    Rtpbin has been deprecated and now we should use gstrtpbin instead. You
> can search the maillist to find out more stuffs on rtpbin & gstrtpbin.
>
> Eric Zhang
>
> 2008/11/7 ajitjohn <[hidden email]>
>
>> Hii all,
>>
>>        I have written a mjpeg packetiser plugin based on rfc 2435 .I am
>> not
>> able
>> to link my plugin to RTPBIN element .I am getting the following errors.
>>
>> gst-launch videotestsrc ! ffenc_mjpeg ! rtpmjpegpay ! rtpbin
>> localport=5000
>> destinations=10.60.3.104:5000
>> WARNING: erroneous pipeline: no element "rtpbin"
>>
>>            But I am able to link my plugin with udpsink element in
>> Gstreamer.
>>
>> gst-launch videotestsrc ! ffenc_mjpeg ! rtpmjpegpay ! udpsink
>> host=10.60.3.104 port=5000.
>>
>>
>>          Earlier my sourcepad capability was set to "any" ,but now i have
>> changed it to "application/x-rtp" still it shows the same error .
>>          Can anyone help me in this .
>>
>> Regards,
>>
>>
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