[gst-devel] issue in playing video

Balakrishnan Natarajan balakrishnan.2005 at gmail.com
Sat Oct 25 17:47:49 CEST 2008


hi murgadoss
 mp4demuxer and avidemuxer have been linked with corresponding parser
libraries while building. I dont see them in the package which u have
mentioned. May be they are in some other archive. if so extract the same and
set the coressponding LD_LIBRARY_PATH. then u will be able to inspect these
plug-ins.



On Fri, Oct 24, 2008 at 4:18 AM, <
gstreamer-devel-request at lists.sourceforge.net> wrote:

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> Today's Topics:
>
>   1. Re: issue in playing video (murugadoss)
>   2. Re: raw video source (Wim Taymans)
>   3. Re: raw video source (Wim Taymans)
>   4. issue while playing video (murugadoss)
>   5. set capability (Vikas Patel)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 24 Oct 2008 12:02:30 +0530
> From: murugadoss <v.murugadoss at gdatech.co.in>
> Subject: Re: [gst-devel] issue in playing video
> To: Discussion of the development of GStreamer
>        <gstreamer-devel at lists.sourceforge.net>
> Message-ID: <49016BFE.7000908 at gdatech.co.in>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Fabioestevam,
> As it said in the document (link u gave), i have compiled and installed
> the package and i am able to get the package in
> /usr/lib/gstereamer-0.10/ . when i try to check for the package,using
> command
> *mx27# gst-inspect | grep mfw*
> mfw_v4lsink:  mfw_v4lsink: v4l_sink
> mfw_v4lsrc:  mfw_v4lsrc: Freescale Video Source plug-in
>
> i am not getting to get mp4demuxer and avidemuxer. what may be the
> problem, can u help me. please?
> *Note:*
> package are present in */usr/lib/gstreamer-0.10*/
> #
> libmfw_gst_avidemuxer.a          libmfw_gst_mp4demuxer_plugin.la
> libmfw_gst_v4lsink.so
> libmfw_gst_avidemuxer.la         libmfw_gst_mp4demuxer_plugin.so
> libmfw_gst_v4lsrc.a
> libmfw_gst_avidemuxer.so         libmfw_gst_v4lsink.a
> libmfw_gst_v4lsrc.la
> libmfw_gst_mp4demuxer_plugin.a   libmfw_gst_v4lsink.la
> libmfw_gst_v4lsrc.so
>
> Regards
> V.Murugadoss
>
>
> Vinay wrote:
> > Please set the GST_PLUGIN_PATH and LD_LIBRARY_PATH properly.
> >
> > They should be pointing to the plugins which you have as part of your
> > release.
> >
> > - Vinay K.
> >
> > On Thu, Oct 23, 2008 at 5:27 PM, Fabio Estevam <fabioestevam at yahoo.com
> > <mailto:fabioestevam at yahoo.com>> wrote:
> >
> >     Murugadoss,
> >
> >     --- On Thu, 10/23/08, murugadoss <v.murugadoss at gdatech.co.in
> >     <mailto:v.murugadoss at gdatech.co.in>> wrote:
> >
> >     > From: murugadoss <v.murugadoss at gdatech.co.in
> >     <mailto:v.murugadoss at gdatech.co.in>>
> >     > Subject: Re: [gst-devel] issue in playing video
> >     > To: "Discussion of the development of GStreamer"
> >     <gstreamer-devel at lists.sourceforge.net
> >     <mailto:gstreamer-devel at lists.sourceforge.net>>
> >     > Date: Thursday, October 23, 2008, 8:05 AM
> >     > hi vinay,
> >     > Thanks for the reply.
> >     > when i use nfw_vpudecoder, it display an error message as
> >     > WARNING: erroneous pipeline: no element
> >     > "mfw_vpudecoder"
> >     >
> >
> >     Which BSP version are you using?
> >
> >     What do you get when you do a gst-inspect | grep mfw ? If you
> >     don't get 6 plugins then something must be wrong with your
> >     installation, probably  your export GST_PLUGIN_PATH or
> >     LD_LIBRARY_PATH.
> >
> >     Again, the Release Notes does contain pipeline example for
> >     decoding avi, mp4 files. Why don't you try it?
> >
> >     For example: M4V file with H264 video:
> >
> >     gst-launch filesrc location=
> >     /media/MX27_TEST_STREAMS_R1/H264_VPU/Kaleidoscope_h264_aac.m4v !
> >     mfw_mp4demuxer name=demux demux. ! mfw_vpudecoder
> >     codec-type=std_avc ! mfw_v4lsink demux.
> >
> >     You can download some test streams from here:
> >
> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX27_CODECS&fpsp=1&tab=Design_Tools_Tab
> >     <
> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX27_CODECS&fpsp=1&tab=Design_Tools_Tab
> >
> >
> >     Click on MX27_TEST_STREAMS .
> >
> >     Regards,
> >
> >     Fabio Estevam
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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> ------------------------------
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> Message: 2
> Date: Fri, 24 Oct 2008 11:05:34 +0200
> From: Wim Taymans <wim.taymans at gmail.com>
> Subject: Re: [gst-devel] raw video source
> To: Discussion of the development of GStreamer
>        <gstreamer-devel at lists.sourceforge.net>
> Message-ID: <1224839139.31870.18.camel at metal>
> Content-Type: text/plain
>
> On Thu, 2008-10-23 at 16:34 -0700, Jon Dufresne wrote:
> > Does there exist a raw video source that I can use in a gstreamer
> pipeline?
> >
> > I have a file that contains yuv data with no headers or compression.
> > This data exists mostly for testing other applications. I want to be
> > able to quickly throw this into gst-launch and see if the data is what
> > I expect.
> >
> > Does this element exist?
>
> You are looking for videoparse, which is in gst-plugins-bad.
>
> Wim
> >
> > Thanks,
> > Jon
> >
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>
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 24 Oct 2008 11:05:34 +0200
> From: Wim Taymans <wim.taymans at gmail.com>
> Subject: Re: [gst-devel] raw video source
> To: Discussion of the development of GStreamer
>        <gstreamer-devel at lists.sourceforge.net>
> Message-ID: <1224839139.31870.18.camel at metal>
> Content-Type: text/plain
>
> On Thu, 2008-10-23 at 16:34 -0700, Jon Dufresne wrote:
> > Does there exist a raw video source that I can use in a gstreamer
> pipeline?
> >
> > I have a file that contains yuv data with no headers or compression.
> > This data exists mostly for testing other applications. I want to be
> > able to quickly throw this into gst-launch and see if the data is what
> > I expect.
> >
> > Does this element exist?
>
> You are looking for videoparse, which is in gst-plugins-bad.
>
> Wim
> >
> > Thanks,
> > Jon
> >
> > -------------------------------------------------------------------------
> > This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> > Build the coolest Linux based applications with Moblin SDK & win great
> prizes
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> world
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>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Fri, 24 Oct 2008 14:13:10 +0530
> From: murugadoss <v.murugadoss at gdatech.co.in>
> Subject: [gst-devel] issue while playing video
> To: Discussion of the development of GStreamer
>        <gstreamer-devel at lists.sourceforge.net>
> Message-ID: <49018A9E.4090802 at gdatech.co.in>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi,
> I am working on porting gstreamer over linux in i.mx27 board. when i try
> to run the video, i get an error,
>
> *gst-launch filesrc location=/mnt/nfs/Toyata_Human_Touch.mpg ! decodebin
> ! autovideosink*
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> ERROR: from element /pipeline0/filesrc0: Internal data flow error.
> Additional debug info:
> gstbasesrc.c(1642): gst_base_src_loop (): /pipeline0/filesrc0:
> streaming task paused, reason not-linked (-1)
> ERROR: pipeline doesn't want to preroll.
> Setting pipeline to NULL ...
> FREEING pipeline ...
>
> Do anyone have faced this problem, how to solve this issue? Please reply
> if u have any idea about this.
> Thanks for the support
> --
> Regards
> V.Murugadoss
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> ------------------------------
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> Message: 5
> Date: Fri, 24 Oct 2008 16:48:07 +0530
> From: "Vikas Patel" <Vikas.Patel at imgtec.com>
> Subject: [gst-devel] set capability
> To: <gstreamer-devel at lists.sourceforge.net>
> Message-ID:
>        <C1A102308DC77D40BA4DFB4CF4C63BB23F9663 at pumail1.pu.imgtec.org>
> Content-Type: text/plain; charset="us-ascii"
>
> Developing plugin for video decoder, I want to set the height and width
> of image after parsing the header in source pad capability.
>
> Implemented setcaps function but that's not getting invoked and that is
> supposed to invoke when plugin pushes the data to next plugin in
> pipeline.
>
> Or any other alternate view to pass this information to next plugin?
>
> Regards
>
> Vikas
>
>
>
>
>
>
>
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