[gst-devel] msgsm plugin not recognized

[Michael Smith]

Tom,

So, from your first email we have this:>    Capabilities:
>      audio/x-msgsm
>                   rate: 8000
>               channels: 1

** Message: don't know how to handle audio/ms-gsm, rate=(int)8000,
channels=(int)1, codec_data=(buffer)4001

>From the gst-inspect output, we have this:
    Capabilities:
      audio/x-msgsm
                   rate: 8000
               channels: 1

This means that the msgsmdec decoder that you have accepts a type
called "audio/x-msgsm". However, the demuxer outputs a type called
"audio/ms-gsm". These aren't the same, so the decoder is considered
incompatible, and therefore not used.

You'll need to change the decoder to use "audio/ms-gsm" for this to work.

Mike



On Fri, Jan 16, 2009 at 3:03 PM, Tom Vacek <vacek008 at umn.edu> wrote:
> Thanks for looking at this.  Here it is.
>
> twvacek at v1:~/Desktop$ gst-inspect msgsmdec
> Factory Details:
>  Long name:    MS GSM audio decoder
>  Class:    Codec/Decoder/Audio
>  Description:    Decodes MS GSM encoded audio
>  Author(s):    Philippe Khalaf <burger at speedy.org>
>  Rank:        none (0)
>
> Plugin Details:
>  Name:            msgsm
>  Description:        msGSM encoder/decoder
>  Filename:        /usr/lib/gstreamer-0.10/libgstmsgsm.so
>  Version:        0.12.10
>  License:        LGPL
>  Source module:    gst-plugins-farsight
>  Binary package:    Farsight
>  Origin URL:        http://farsight.sf.net
>
> GObject
>  +----GstObject
>       +----GstElement
>             +----GstMSGSMDec
>
> Pad Templates:
>  SINK template: 'sink'
>    Availability: Always
>    Capabilities:
>      audio/x-msgsm
>                   rate: 8000
>               channels: 1
>
>  SRC template: 'src'
>    Availability: Always
>    Capabilities:
>      audio/x-raw-int
>             endianness: 1234
>                 signed: true
>                  width: 16
>                  depth: 16
>                   rate: 8000
>               channels: 1
>
>
> Element Flags:
>  no flags set
>
> Element Implementation:
>  Has change_state() function: gst_element_change_state_func
>  Has custom save_thyself() function: gst_element_save_thyself
>  Has custom restore_thyself() function: gst_element_restore_thyself
>
> Element has no clocking capabilities.
> Element has no indexing capabilities.
> Element has no URI handling capabilities.
>
> Pads:
>  SRC: 'src'
>    Implementation:
>      Has custom eventfunc(): gst_pad_event_default
>      Has custom queryfunc(): gst_pad_query_default
>        Provides query types:
>      Has custom intconnfunc(): gst_pad_get_internal_links_default
>    Pad Template: 'src'
>  SINK: 'sink'
>    Implementation:
>      Has chainfunc(): gst_msgsmdec_chain
>      Has custom eventfunc(): gst_pad_event_default
>      Has custom queryfunc(): gst_pad_query_default
>        Provides query types:
>      Has custom intconnfunc(): gst_pad_get_internal_links_default
>    Pad Template: 'sink'
>
> Element Properties:
>  name                : The name of the object
>                        flags: readable, writable
>                        String. Default: null Current: "msgsmdec0"
>
>
> Michael Smith wrote:
>> On Fri, Jan 16, 2009 at 2:08 PM, Tom Vacek <vacek008 at umn.edu> wrote:
>>
>>> A voicemail system (Asterisk) forwards messages to me in "msgsm"
>>> format.  I can play them with Blastwave mplayer (see below).  In a
>>> nutshell, I compiled a gstreamer msgsm plugin, and gstreamer appears to
>>> recognize it, but my messages still won't play.
>>>
>>> The following three command outputs tell the story:
>>>
>>
>> Not really. "gst-inspect msgsmdec" would be the crucial missing info...
>>
>> Mike
>>
>>
>>> ======================================
>>> xx at v1:~$ gst-inspect msgsm
>>> Plugin Details:
>>>  Name:            msgsm
>>>  Description:        msGSM encoder/decoder
>>>  Filename:        /usr/lib/gstreamer-0.10/libgstmsgsm.so
>>>  Version:        0.12.10
>>>  License:        LGPL
>>>  Source module:    gst-plugins-farsight
>>>  Binary package:    Farsight
>>>  Origin URL:        http://farsight.sf.net
>>>
>>>  msgsmenc: MS GSM audio encoder
>>>  msgsmdec: MS GSM audio decoder
>>>
>>>  2 features:
>>>  +-- 2 elements
>>>
>>> ============================
>>> xx at v1:~$ totem msg0000.WAV
>>> ** Message: don't know how to handle audio/ms-gsm, rate=(int)8000,
>>> channels=(int)1, codec_data=(buffer)4001
>>> ** Message: Error: You do not have a decoder installed to handle this
>>> file. You might need to install the necessary plugins.
>>> gstplaybasebin.c(2307): prepare_output (): /GstPlayBin:play
>>>
>>> ** Message: Missing plugin: gstreamer|0.10|totem|MS GSM
>>> decoder|decoder-audio/ms-gsm (MS GSM decoder)
>>> ** Message: Automatic missing codec installation not supported (helper
>>> script missing)
>>>
>>> =======================================
>>> xx at v1:~$ mplayer msg0000.WAV
>>> MPlayer 1.0rc2-CSW-Studio11 (C) 2000-2007 MPlayer Team
>>> CPU: Intel x86
>>> CPUflags:  MMX: 0 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
>>> Compiled for x86 CPU with extensions:
>>>
>>> Playing msg0000.WAV.
>>> Audio file file format detected.
>>> ==========================================================================
>>> Opening audio decoder: [msgsm] native GSM/MSGSM audio decoder
>>> AUDIO: 8000 Hz, 1 ch, s16le, 13.0 kbit/10.16% (ratio: 1625->16000)
>>> Selected audio codec: [msgsm] afm: msgsm (MS GSM)
>>> ==========================================================================
>>>
>>>
>>>
>>>
>>>
>>>
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