[gst-devel] How I test the FLV demux plugin

Sun Dec 12 08:53:11 CET 2010

I suggest you to use capsfilter, as you said in your earlier mails
that gst_pad_push returns -1 , that means flvdemux is not able to push
buffer to the next element and it may happen because of lack of
caps negotiations.

By the way how did you create this test.flv file ? and are you able to play
this file with other players ?

and give a try to following pipeline;
 gst-launch -v playbin uri=file:///path/test.flv

On Sat, Dec 11, 2010 at 10:55 PM, Timothy Braun <braunsquared at gmail.com>wrote:

> Your best bet is to use gst-inspect and look at what the various templates
> of the pads are. It sounds like you need to do some conversion somewhere.
>
> Sent from my iPhone
>
> On Dec 11, 2010, at 8:46 AM, michael <mcygogo at gmail.com> wrote:
>
> Hi sudarshan:
>      I followed your command, I got information :
> WARNING: erroneous pipeline: could not parse caps "video/x-h264,\
> pixel-aspect-ratio=(fraction)1/1,\
> codec_data=(buffer)01640015ffe1001e67640015ac34e602808effc028402804000003000400000300ca3c58b67801000468e9bbcb\"
>
>
>
> On Sat, Dec 11, 2010 at 7:32 PM, sudarshan bisht <<bisht.sudarshan at gmail.com>
> bisht.sudarshan at gmail.com> wrote:
>
>> Ok, now can you try following,
>>
>> gst-launch filesrc location=test.flv ! flvdemux name=demux demux.video_00
>> ! queue !  "video/x-h264, pixel-aspect-ratio=(fraction)1/1,
>> codec_data=(buffer)01640015ffe1001e67640015ac34e602808effc028402804000003000400000300ca3c58b67801000468e9bbcb
>> " ! filesink location=test.ves demux.audio_00 ! queue ! filesink
>> location=test.aes
>>
>>
>> On Sat, Dec 11, 2010 at 10:49 AM, michael < <mcygogo at gmail.com>
>> mcygogo at gmail.com> wrote:
>>
>>> Hi sudarshan:
>>>     I run it with the -v option, and the result  like this:
>>> Setting pipeline to PAUSED ...
>>> Pipeline is PREROLLING ...
>>> /GstPipeline:pipeline0/GstFlvDemux:demux.GstPad:video: caps =
>>> video/x-h264, pixel-aspect-ratio=(fraction)1/1,
>>> codec_data=(buffer)01640015ffe1001e67640015ac34e602808effc028402804000003000400000300ca3c58b67801000468e9bbcb
>>>  ERROR: from element /GstPipeline:pipeline0/GstFlvDemux:demux: Internal
>>> data stream error.
>>> Additional debug info:
>>> gstflvdemux.c(2283): gst_flv_demux_loop ():
>>> /GstPipeline:pipeline0/GstFlvDemux:demux:
>>> stream stopped, reason not-linked
>>> ERROR: pipeline doesn't want to preroll.
>>> Setting pipeline to NULL ...
>>> /GstPipeline:pipeline0/GstFlvDemux:demux.GstPad:audio: caps = NULL
>>> /GstPipeline:pipeline0/GstFlvDemux:demux.GstPad:video: caps = NULL
>>> Freeing pipeline ...
>>>
>>> I have found that the in function: gst_flv_demux_parse_tag_video() , the
>>> call gst_pad_push(demux->video_pad, outbuf) returned the -1;
>>>
>>> On Sat, Dec 11, 2010 at 4:33 PM, sudarshan bisht <<bisht.sudarshan at gmail.com>
>>> bisht.sudarshan at gmail.com> wrote:
>>>
>>>> Could you run the same pipeline with -v option and paste the log here ?
>>>>
>>>>
>>>>  On Sat, Dec 11, 2010 at 11:47 AM, michael < <mcygogo at gmail.com>
>>>> mcygogo at gmail.com> wrote:
>>>>
>>>>> Hi all:
>>>>>      Now I am learning some about the flv plugin--flvdemux, I try to
>>>>> demux my flv test file like this:
>>>>> gst-launch filesrc location=test.flv ! flvdemux name=demux
>>>>> demux.video_00 ! queue ! filesink location=test.ves demux.audio_00 ! queue !
>>>>> filesink location=test.aes
>>>>>      But when I run it , I just get the information like this:
>>>>> Setting pipeline to PAUSED ...
>>>>> Pipeline is PREROLLING ...
>>>>> ERROR: from element /GstPipeline:pipeline0/GstFlvDemux:demux: Internal
>>>>> data stream error.
>>>>> Additional debug info:
>>>>> gstflvdemux.c(2283): gst_flv_demux_loop ():
>>>>> /GstPipeline:pipeline0/GstFlvDemux:demux:
>>>>> stream stopped, reason not-linked
>>>>> ERROR: pipeline doesn't want to preroll.
>>>>> Setting pipeline to NULL ...
>>>>> Freeing pipeline ...
>>>>>
>>>>> I just want test the flvdemux plugin , So How I fixed it? tks:)
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Oracle to DB2 Conversion Guide: Learn learn about native support for
>>>>> PL/SQL,
>>>>> new data types, scalar functions, improved concurrency, built-in
>>>>> packages,
>>>>> OCI, SQL*Plus, data movement tools, best practices and more.
>>>>>  <http://p.sf.net/sfu/oracle-sfdev2dev>
>>>>> http://p.sf.net/sfu/oracle-sfdev2dev
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>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>>
>>>> Sudarshan Bisht
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Oracle to DB2 Conversion Guide: Learn learn about native support for
>>>> PL/SQL,
>>>> new data types, scalar functions, improved concurrency, built-in
>>>> packages,
>>>> OCI, SQL*Plus, data movement tools, best practices and more.
>>>>  <http://p.sf.net/sfu/oracle-sfdev2dev>
>>>> http://p.sf.net/sfu/oracle-sfdev2dev
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>>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Oracle to DB2 Conversion Guide: Learn learn about native support for
>>> PL/SQL,
>>> new data types, scalar functions, improved concurrency, built-in
>>> packages,
>>> OCI, SQL*Plus, data movement tools, best practices and more.
>>>  <http://p.sf.net/sfu/oracle-sfdev2dev>
>>> http://p.sf.net/sfu/oracle-sfdev2dev
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>>  <gstreamer-devel at lists.sourceforge.net>
>>> gstreamer-devel at lists.sourceforge.net
>>>  <https://lists.sourceforge.net/lists/listinfo/gstreamer-devel>
>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>
>>>
>>
>>
>> --
>> Regards,
>>
>> Sudarshan Bisht
>>
>>
>> ------------------------------------------------------------------------------
>> Oracle to DB2 Conversion Guide: Learn learn about native support for
>> PL/SQL,
>> new data types, scalar functions, improved concurrency, built-in packages,
>> OCI, SQL*Plus, data movement tools, best practices and more.
>>  <http://p.sf.net/sfu/oracle-sfdev2dev>
>> http://p.sf.net/sfu/oracle-sfdev2dev
>> _______________________________________________
>> gstreamer-devel mailing list
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>> gstreamer-devel at lists.sourceforge.net
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>>
>>
>
> ------------------------------------------------------------------------------
> Oracle to DB2 Conversion Guide: Learn learn about native support for
> PL/SQL,
> new data types, scalar functions, improved concurrency, built-in packages,
> OCI, SQL*Plus, data movement tools, best practices and more.
> http://p.sf.net/sfu/oracle-sfdev2dev
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
>
>
> ------------------------------------------------------------------------------
> Oracle to DB2 Conversion Guide: Learn learn about native support for
> PL/SQL,
> new data types, scalar functions, improved concurrency, built-in packages,
> OCI, SQL*Plus, data movement tools, best practices and more.
> http://p.sf.net/sfu/oracle-sfdev2dev
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
>

-- 
Regards,

Sudarshan Bisht
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