[gst-devel] issue in playing video

murugadoss v.murugadoss at gdatech.co.in
Thu Oct 23 11:27:02 CEST 2008


Hi Fabio,
Thanks for the reply.
As u said, i downloaded the package from the link and added to my board 
package,
package i added can be seen in the location ../usr/lib/gstreamer-0.10/
libmfw_gst_avidemuxer.a
libgstavi.so            libgstiec958.so            
libgstspectrum.so           *libmfw_gst_avidemuxer.la*
libgstcdxaparse.a       libgstlevel.a              
libgstspeed.a                 l*ibmfw_gst_avidemuxer.so*
libgstcdxaparse.so      libgstlevel.so             
libgstspeed.so              l*ibmfw_gst_v4lsink.a*
libgstcoreelements.a    libgstmad.a                
libgstsubparse.a         * libmfw_gst_v4lsink.la*
libgstcoreelements.so   libgstmad.so               
libgstsubparse.so       l*ibmfw_gst_v4lsink.so*
libgstcoreindexers.a    libgstmatroska.a           
libgsttcp.a                 *libmfw_gst_v4lsrc.a*
libgstcoreindexers.so   libgstmatroska.so          
libgsttcp.so              *libmfw_gst_v4lsrc.la*
libgstcutter.a          libgstmodplug.a            
libgsttta.a                      * libmfw_gst_v4lsrc.so*
libgstcutter.so         libgstmodplug.so           
libgsttta.so               *     libmfw_gst_vpu_dec.a*
libgstdebug.a           libgstmpegaudioparse.a     
libgsttypefindfunctions.a   *libmfw_gst_vpu_dec.la*
libgstdebug.so          libgstmpegaudioparse.so    
libgsttypefindfunctions.so  *libmfw_gst_vpu_dec.so

*Adding this package only increases my plugin, but when i try to run the 
video file i get an error message or only audio is running,
*mx27# gst-launch playbin uri=file:///mnt/nfs/Toyata_Human_Touch.mpg*
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
** Message: don't know how to handle video/mpeg, mpegversion=(int)1, 
systemstream=(boolean)false
configure_write_channel, stream_id is 0

using this command, only audio is playing.

using the below command, i get the error msg
*mx27# gst-launch filesrc location=/mnt/nfs/Toyata_Human_Touch.mpg ! 
ffmpegcolorspace ! mfw_v4lsink*
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /pipeline0/ffmpegcsp0: not negotiated
Additional debug info:
gstbasetransform.c(1487): gst_base_transform_handle_buffer (): 
/pipeline0/ffmpegcsp0:
not negotiated
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
FREEING pipeline ...

I used gst-inspect command, and  found the  *ffmpegcolorspace and 
mfw_v4lsink are available
mx27# gst-inspect ffmpegcolorspace
*Factory Details:
  Long name:    FFMPEG Colorspace converter
  Class:        Filter/Converter/Video
  Description:  Converts video from one colorspace to another
  Author(s):    Ronald Bultje <rbultje at ronald.bitfreak.net>
  Rank:         none (0)

Plugin Details:
  Name:                 ffmpegcolorspace
  Description:          colorspace conversion copied from FFMpeg 0.4.9-pre1
  Filename:             /usr/lib/gstreamer-0.10/libgstffmpegcolorspace.so
  Version:              0.10.12
  License:              LGPL
  Source module:        gst-plugins-base
  Binary package:       FFMpeg
  Origin URL:           http://ffmpeg.sourceforge.net/
.   
;
;

*mx27# gst-inspect mfw_v4lsink*
Factory Details:
  Long name:    v4l_sink
  Class:        Sink/Video
  Description:  Video rendering device plugin used to displayYUV 4:2:0 
data with the support to crop the input image used a
  Author(s):    Multimedia Team <mmsw at freescale.com>
  Rank:         primary (256)

Plugin Details:
  Name:                 mfw_v4lsink
  Description:          Video diaplay plug in based on V4L2
  Filename:             /usr/lib/gstreamer-0.10/libmfw_gst_v4lsink.so
  Version:
  License:              unknown
  Source module:
  Binary package:       Freescale Semiconductor
  Origin URL:           www.freescale.com

what may be the issue? can u help me please.
Thank u for the support

Regards
V.Murugadoss


Fabio Estevam wrote:
> Dear Murugadoss,
>
> --- On Wed, 10/22/08, murugadoss <v.murugadoss at gdatech.co.in> wrote:
>
>   
>> From: murugadoss <v.murugadoss at gdatech.co.in>
>> Subject: [gst-devel] issue in playing video
>> To: "Discussion of the development of GStreamer" <gstreamer-devel at lists.sourceforge.net>
>> Date: Wednesday, October 22, 2008, 9:25 AM
>> Hi,
>> I am working on getting gstreamer over linux in i.mx27
>> board. I have 
>> ported the gstreamer and the audio is working fine. when i
>> try to run 
>> the video file, it give me a error message. i have tried
>> out with 
>> various plugins. I used the gst-inspect command to find out
>> the plungins 
>> present,
>>     
>
> Looks like you didn't follow my previous suggestions.
>
> As I referred in earlier emails you will have better performance on the MX27 if you use the hardware accelerated plugins available on Freescale's website, which makes use of hardware decoder/encoder present on MX27. 
>
> Of course you can use generic plugins, but performance will not be optimal.
>
> Download the package from here: 
> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX27_CODECS&fpsp=1&tab=Design_Tools_Tab
>
> (Click on MX27_FULL_VPU_SW_LINUX )
>
> , and then read carefully the 
> Multimedia_Linux_Codecs_SDK_Release_Notes_MX27_ADS.pdf document as it contains all the information you need. There are Gstreamer pipeline examples for using the hardware accelerated plugins for encoding and deconding video on the MX27.
>
> Regards,
>
> Fabio Estevam
>
>
>
>       
>
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