[gst-devel] issue in playing video
Vinay
mailtovins at gmail.com
Thu Oct 23 12:46:57 CEST 2008
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>
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
> 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
> 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
> 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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