[gst-devel] issue in playing video
murugadoss
v.murugadoss at gdatech.co.in
Thu Oct 23 13:05:07 CEST 2008
hi vinay,
Thanks for the reply.
when i use nfw_vpudecoder, it display an error message as
WARNING: erroneous pipeline: no element "mfw_vpudecoder"
help please?
Regards
V.Murugadoss
Vinay wrote:
> Hello Murugadoss,
>
> I guess you are using wrong pipeline.
>
> mx27# gst-launch filesrc location=/mnt/nfs/Toyata_Human_Touch.mpg !
> ffmpegcolorspace ! mfw_v4lsink
>
> The above pipeline is not valid because you are tyring to play a
> compressed video without decoding. There is no Video decoder element
> in your pipeline. You pipeline should be something like this,
>
> mx27# gst-launch filesrc location=/mnt/nfs/Toyata_Human_Touch.mpg !
> <Demuxer> ! <Video Decoder> ! ffmpegcolorspace ! mfw_v4lsink
>
> From your list of plugins, I see that mfw_vpudecoder is a valid
> plugin. This plug-in is capable of decoding MPEG4, H.264, H.263 streams.
>
> Vinay K.
>
>
> On Thu, Oct 23, 2008 at 2:57 PM, murugadoss
> <v.murugadoss at gdatech.co.in <mailto:v.murugadoss at gdatech.co.in>> wrote:
> > 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
> <http://libmfw_gst_avidemuxer.la>
> > libgstcdxaparse.a libgstlevel.a
> > libgstspeed.a libmfw_gst_avidemuxer.so
> > libgstcdxaparse.so libgstlevel.so
> > libgstspeed.so libmfw_gst_v4lsink.a
> > libgstcoreelements.a libgstmad.a
> libgstsubparse.a
> > libmfw_gst_v4lsink.la <http://libmfw_gst_v4lsink.la>
> > libgstcoreelements.so libgstmad.so
> libgstsubparse.so
> > libmfw_gst_v4lsink.so
> > libgstcoreindexers.a libgstmatroska.a
> > libgsttcp.a libmfw_gst_v4lsrc.a
> > libgstcoreindexers.so libgstmatroska.so
> libgsttcp.so
> > libmfw_gst_v4lsrc.la <http://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
> <http://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
> <mailto: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
> <mailto: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 <http://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
> <mailto:v.murugadoss at gdatech.co.in>> wrote:
> >
> >
> >
> > From: murugadoss <v.murugadoss at gdatech.co.in
> <mailto: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
> <mailto: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
> <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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