[gst-devel] ts video pipe

sudarshan bisht bisht.sudarshan at gmail.com
Wed Jul 14 06:59:43 CEST 2010


Hi ,

Try following ;

gst-launch filesrc location=Das\ Erste.ts  ! decodebin ! xvimagesink




On Wed, Jul 14, 2010 at 12:23 AM, <th.tom at gmx.de> wrote:

> Hi,
>
> I try to figure that out from the net, but with no success :(, so I gonna
> ask here (I am really a newby at gstreamer):
>
> I have a file containing only the ts video stream (PID 0x1111 in that
> special case), which is an mpeg2 stream from dvb-t.
>
> When I try to play that with mplayer ( SVN-r1.0~rc3+svn20090426-4.4.3 -
> Ubuntu 10.4) It says (see 1-- below) and the video is displayed.
>
> So I tried to play it with gstreamer and it fails:
>
> --- snipp ------
> gst-launch-0.10 -v filesrc location=Das\ Erste.ts ! mpegtsdemux name=demux
> demux.video_4369 ! mpeg2dec ! xvimagesink
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> ERROR: from element /GstPipeline:pipeline0/GstMpegTSDemux:demux: Could not
> determine type of stream.
> Additional debug info:
> gstmpegtsdemux.c(2679): gst_mpegts_demux_sink_event ():
> /GstPipeline:pipeline0/GstMpegTSDemux:demux:
> No valid streams found at EOS
> ERROR: pipeline doesn't want to preroll.
> Setting pipeline to NULL ...
> Freeing pipeline ...
> --- snipp ------
>
> When I tried typefind, it recognizes the stream:
>
> --- snipp ------
> gst-launch-0.10 -v filesrc location=Das\ Erste.ts ! typefind ! mpegtsdemux
> ! fakesink
> Setting pipeline to PAUSED ...
> /GstPipeline:pipeline0/GstTypeFindElement:typefindelement0.GstPad:src: caps
> = video/mpegts, systemstream=(boolean)true, packetsize=(int)188
> Pipeline is PREROLLING ...
> /GstPipeline:pipeline0/GstMpegTSDemux:mpegtsdemux0.GstPad:sink: caps =
> video/mpegts, systemstream=(boolean)true, packetsize=(int)188
> ERROR: from element /GstPipeline:pipeline0/GstMpegTSDemux:mpegtsdemux0:
> Could not determine type of stream.
> Additional debug info:
> gstmpegtsdemux.c(2679): gst_mpegts_demux_sink_event ():
> /GstPipeline:pipeline0/GstMpegTSDemux:mpegtsdemux0:
> No valid streams found at EOS
> ERROR: pipeline doesn't want to preroll.
> Setting pipeline to NULL ...
> /GstPipeline:pipeline0/GstMpegTSDemux:mpegtsdemux0.GstPad:sink: caps = NULL
> /GstPipeline:pipeline0/GstTypeFindElement:typefindelement0.GstPad:src: caps
> = NULL
> Freeing pipeline ...
> --- snipp ------
>
> Is this the correct way to use the mpegts pipe?
> What am I doing wrong? I do not find any proper information for mpegtsdemux
> :-(
>
>
>
>
> 1--
>
> #mplayer Das\ Erste.ts
>
> MPlayer SVN-r1.0~rc3+svn20090426-4.4.3 (C) 2000-2009 MPlayer Team
> mplayer: could not connect to socket
> mplayer: No such file or directory
> Failed to open LIRC support. You will not be able to use your remote
> control.
>
> Playing Das Erste.ts.
> TS file format detected.
> VIDEO MPEG2(pid=4369) NO AUDIO!  NO SUBS (yet)!  PROGRAM N. 0
> VIDEO:  MPEG2  720x576  (aspect 3)  25.000 fps  7000.0 kbps (875.0 kbyte/s)
> open: No such file or directory
> [MGA] Couldn't open: /dev/mga_vid
> open: No such file or directory
> [MGA] Couldn't open: /dev/mga_vid
> [VO_TDFXFB] Can't open /dev/fb0: Permission denied.
> [VO_3DFX] Unable to open /dev/3dfx.
> ==========================================================================
> Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
> VDec: vo config request - 720 x 576 (preferred colorspace: Mpeg PES)
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> The selected video_out device is incompatible with this codec.
> Try appending the scale filter to your filter list,
> e.g. -vf spp,scale instead of -vf spp.
> VDecoder init failed :(
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> Unsupported PixelFormat -1
> Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
> ==========================================================================
> Audio: no sound
> Starting playback...
> VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
> VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
> VO: [xv] 720x576 => 1024x576 Planar YV12
> V:31652.7  77/ 77  7%  0%  0.0% 0 0
> Exiting... (Quit)
>
>
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-- 
Regards,

Sudarshan Bisht
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