[gst-devel] Video Problems

Bram Cymet bcymet at cbnco.com
Mon May 17 16:23:12 CEST 2010


Hi Kapil,

It turned out that it was a file path error. I was using a relative
filepath instead of an absolute one for the uri property.

Now I am getting a different error:

"Could not determine type of stream"

This is the debug output:

:00:00.036578746  5554  0x836ba28 WARN      GST_PLUGIN_LOADING
gstplugin.c:422:gst_plugin_register_func: plugin
"/lib/gstreamer-0.10/libgstpython.so" failed to initialise
0:00:00.103071770  5553  0x836ba28 WARN                  ffmpeg
gstffmpegenc.c:1162:gst_ffmpegenc_register: Couldn't get source caps for
encoder jpegls
0:00:00.112578785  5553  0x836ba28 WARN                  ffmpeg
gstffmpegenc.c:1162:gst_ffmpegenc_register: Couldn't get source caps for
encoder sgi
0:00:00.112804628  5553  0x836ba28 WARN                  ffmpeg
gstffmpegenc.c:1162:gst_ffmpegenc_register: Couldn't get source caps for
encoder targa
0:00:00.112881659  5553  0x836ba28 WARN                  ffmpeg
gstffmpegenc.c:1162:gst_ffmpegenc_register: Couldn't get source caps for
encoder tiff
0:00:00.114539693  5553  0x836ba28 WARN                  ffmpeg
gstffmpegenc.c:1162:gst_ffmpegenc_register: Couldn't get source caps for
encoder dvbsub
0:00:00.114645116  5553  0x836ba28 WARN                  ffmpeg
gstffmpegenc.c:1162:gst_ffmpegenc_register: Couldn't get source caps for
encoder dvdsub
0:00:00.114963934  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'bethsoftvid'
0:00:00.115027519  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'bfi'
0:00:00.115128329  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'c93'
0:00:00.115493642  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'dsicinvideo'
0:00:00.115606661  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'dxa'
0:00:00.115662837  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'eacmv'
0:00:00.115715976  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'eatgq'
0:00:00.115768267  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'eatgv'
0:00:00.115820438  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'eatqi'
0:00:00.115937642  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder '8svx_exp'
0:00:00.115993518  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder '8svx_fib'
0:00:00.116046342  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'escape124'
0:00:00.117047213  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'jpegls'
0:00:00.117513599  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'motionpixels'
0:00:00.118274272  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'pcx'
0:00:00.118549527  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'ptx'
0:00:00.118780973  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'rl2'
0:00:00.119138756  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'sgi'
0:00:00.119211362  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'smackvid'
0:00:00.119414198  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'sunrast'
0:00:00.119574530  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'targa'
0:00:00.119696713  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'thp'
0:00:00.119753466  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'tiertexseqvideo'
0:00:00.119814884  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'tiff'
0:00:00.120080054  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'txd'
0:00:00.120222770  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'vb'
0:00:00.122110494  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'dsicinaudio'
0:00:00.124190601  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'smackaud'
0:00:00.128732925  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'dvbsub'
0:00:00.128835386  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'dvdsub'
0:00:00.128891771  5553  0x836ba28 WARN                  ffmpeg
gstffmpegdec.c:2718:gst_ffmpegdec_register: Couldn't get sink caps for
decoder 'xsub'
0:00:00.134809645  5553  0x836ba28 WARN                  ffmpeg
gstffmpegmux.c:820:gst_ffmpegmux_register: Couldn't get sink caps for
muxer ass. Most likely because no input format mapping exists.
0:00:00.142418361  5553  0x836ba28 WARN                GST_PADS
gstpad.c:697:gst_pad_set_active:<typefind:sink> Failed to activate pad

gsttypefindelement.c(889): gst_type_find_element_activate ():
/GstPlayBin:player/GstDecodeBin:decodebin0/GstTypeFindElement:typefind

and my code is attached.

Thanks for your help,

Bram 




On 05/17/2010 10:10 AM, Kapil Agrawal wrote:
> Bram,
>
> Can you give us more info on your problem, and what pipeline you use ?
> From the error it seems permission issue .
>
> Check your pipeline with GST_DEBUG=*:2
>
> best
> kapil
>
> On Sun, May 16, 2010 at 6:53 PM, Bram Cymet <bcymet at cbnco.com
> <mailto:bcymet at cbnco.com>> wrote:
>
>     Hi,
>
>     I am working on developing a small video player using gstreamer
>     and pygst.
>
>     It works perfectly fine on my laptop but when I move it to my target
>     hardware I am having some problems.
>
>     I have the error "could not open resource for reading"
>
>     Is there anyway I can tell what resource this is referring to? Could
>     this simply be a permissions error on a file or something more
>     hardware
>     related.
>
>     Thanks,
>
>     --
>     Bram Cymet
>     Software Developer
>     Canadian Bank Note Co. Ltd.
>     Cell: 613-608-9752
>
>
>
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>
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>
>
>
> -- 
> twitter handle: @gst_kaps
> http://www.linkedin.com/in/kapilagrawal
>
>
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-- 
Bram Cymet
Software Developer
Canadian Bank Note Co. Ltd.
Cell: 613-608-9752


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