[gst-devel] ts video pipe

[th.tom at gmx.de]

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)