libomxil-0.2: omxmp3dectest - error decoding

[Martin]

Hi everybody,

I receive errors such as the one below whenever I try to decode an mp3 with omxmp3dectest built with libomxil-0.2.
I have build logs as well if required.  I suspect I am building with the wrong version of something.....

[mp2 @ 0xb7420ac8]Header missing skipping one byte.
[mp2 @ 0xb7420ac8]Header missing skipping one byte.
[mp2 @ 0xb7420ac8]incorrect frame size
ALSA Underrun..
Ouch! In mp3FillBufferDone: no data in the output buffer!
Ouch! In mp3FillBufferDone: no data in the output buffer!

OS = Ubuntu 7.10, and my FFmpeg version is ->

FFmpeg version SVN-r12186, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration:
  libavutil version: 49.6.0
  libavcodec version: 51.50.1
  libavformat version: 52.7.0
  libavdevice version: 52.0.0
  built on Feb 25 2008 16:15:26, gcc: 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)
FFmpeg SVN-r12186
libavutil   3212800
libavcodec  3355137
libavformat 3409664
libavdevice 3407872

Thanks

Martin

[Pankaj Sen]

Hi Martin,

The error is from ffmpeg library. This version was tested on the following(README):

FC2 (with ffmpeg-0.4.8),
FC4 (with ffmpeg-0.4.9),
Mandriva 2006.0,
Ubuntu 5.10,
CentOS 4.1.

Also, these are very old version. Why don't you try latest release libomxil/branches/rel_0_3_3(Oct 22,2007) or check out from the trunk.

FYI, We will soon release a new version.

Regards,
Pankaj

[Martin]

Hi Pankaj,

I tried building libomxil-B-0.3.3 with the same version of ubuntu & ffmpeg as I used above.  I am still not having much luck.  Which specific versions of ffmpeg etc are required?

I am currently downloading FC6 to see if that will work better.

When I try to register the components I get the following message -:

jars@jars-desktop:~/WORK/libomxil-B-0.3.3$ sudo /usr/local/bin/omxregister
OMX-could not load /usr/local/lib/omxilcomponents/libomxfbdev.so: /usr/local/lib/omxilcomponents/libomxfbdev.so: undefined symbol: omx_base_component_GetConfig
OMX-could not load /usr/local/lib/omxilcomponents/libomxfilereader.so: /usr/local/lib/omxilcomponents/libomxfilereader.so: undefined symbol: av_log
OMX-could not load /usr/local/lib/omxilcomponents/libomxffmpeg.so: /usr/local/lib/omxilcomponents/libomxffmpeg.so: undefined symbol: cos
jars@jars-desktop:~/WORK/libomxil-B-0.3.3$

When I try and run the mp3 decoder example (omxaudiodectest) I get the following message -:

jars@jars-desktop:~/WORK/libomxil-B-0.3.3/test/components/audio$ sudo ./omxaudiodectest ~/Music/piano.mp3
Options selected:
Decode file /home/jars/Music/piano.mp3 to  alsa sink without tunneling
Format selected MP3
------------------------------------
GENERAL TEST test_OMX_ComponentNameEnum
component 0 is OMX.st.audio_decoder.mp3.mad
component 1 is OMX.st.audio_decoder.ogg.single
component 2 is OMX.st.volume.component
component 3 is OMX.st.alsa.alsasink
GENERAL TEST test_OMX_ComponentNameEnum result -2147479538
------------------------------------
GENERAL TEST test_OMX_RoleEnum
OMX-no component match in whole template list has been found
Not able to retrieve the number of roles of the given component
GENERAL TEST test_OMX_RoleEnum result -2147479549
------------------------------------
GENERAL TEST test_OMX_ComponentEnumByRole
Getting number of components per role for audio_decoder.ogg
Number of components per role for audio_decoder.ogg is 1
The components are:
OMX.st.audio_decoder.ogg.single
GENERAL TEST test_OMX_ComponentEnumByRole result OMX_ErrorNone
------------------------------------
GENERAL TEST test_OpenClose
OMX-Component not found with current ST static component loader.
No component found
GENERAL TEST test_OpenClose result -2147479549
------------------------------------
OMX-Component not found with current ST static component loader.
FileReader Component Not Found
jars@jars-desktop:~/WORK/libomxil-B-0.3.3/test/components/audio$

Thanks

Martin

[Pankaj Sen]

Hi Martin,

I think you have installed(by default) omxil libraries in  /usr/local/lib and binaries in /usr/local/bin.

You can add /usr/local/bin in your PATH and export LD_LIBRARTY_PATH=/usr/local/lib. Also verify you have ffmpeg development libraries and headers.

Then execute "omxregister -v" , it will create a .omxregistry in your home folder. "-v" option will show all the components available.

Regards,
Pankaj

[Giulio Urlini]

Hi Martin,
your problem is that the libraries are not aligned.
SO in the ffmpeg library are missing some functions that are used by the OpenMAX component.
Regarding the Ubuntu we have tried with a recent subversion revision, 12163.
If the loading of a component fails, it is not available so the test fails.
Regarding the fbdev error, we should check internally.
Meanwhile a new release has been delivered, so you probably can download the latest tarball.

Regards,
Giulio