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Friends,

I'm new to Linux, I need to work on Linux. I have ported Linux to AT91SAM9261-EK board. Now i need to work on Codecs. I just know the definition of codec from wikipedia, Now i need add my own codec to the board.

I want to know,

  1. Where codec will be preset in 1)File System, 2)Kernel or 3)Player

  2. And how to add codec while building entire source, please tell me the steps i need follow.

  3. And also how to remove the codec.

  4. How to play the video files from pendrive in console, now i can play audio by command

    'mplayer "filename" '. Don't know how to play video.

Please help me, How to do this.

Edit: Added information posted by asker as an answer: -DMA57361.

I'm Getting following error while playing Video.

It Seems there is no Xvideo support for your video card available.
Opening Video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selscted video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
Forced Audio codec :MAD
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
Selected audio codec:[faad]
X server image format not supported, Please contact the developers
FATAL: Cannot initialise video driver
FATAL: Could not  initialise video filters

Exiting.... (End of File)                                       

What it means, Any help.

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2 Answers 2

All of the codecs you need are included with the mplayer source code. There is a complete list of the ones included on their website.

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Where codec will be preset in 1)File System, 2)Kernel or 3)Player

On Linux, there is no central place for codecs. Codecs are built into individual media applications/players. Sometimes, the applications will use a codec packages as a shared library (.so), in that case several applications can share a codec, but each individual app still needs support for the codec built-in.

And how to add codec while building entire source, please tell me the steps i need follow. And also how to remove the codec.

This depends on the individual application.

How to play the video files from pendrive in console, now i can play audio by command

'mplayer "filename" '. Don't know how to play video.

Actually, exactly the same : mplayer video.avi.

If this does not work, it can be for any number of reasons, one of which is a missing codec.

MPlayer supports loads of codecs, however it can be configured at compile-time to not include all of them. So depending on how your version of MPlayer was compiled, a particular codec may be missing.

If you still have problems, please update your question with the exact error message you are getting, then we'll probably be able to help.

Edit:

Looking at the error messages you posted, the problem is not at all with the codecs, but with the video card.

It Seems there is no Xvideo support for your video card available.

MPlayer tries to use the X Video extension to display the video. This fails, probably because your video card and/or driver do not support it. This in itself is not fatal, MPlayer automatically falls back to plain X.

X server image format not supported, Please contact the developers

This is a general message meaning that the video could not be displayed due to problems with video setup. This is probably an incompatibility between your video card / driver / video settings and MPlayer. I don't know enough to help here, sorry.

What video card and driver do you use? You could try posting on the MPlayer mailing list to ask for help.

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Hi, sleske Thanks for your reply It Seems there is no Xvideo support for your video card available. Opening Video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selscted video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4) Forced Audio codec :MAD Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding) Selected audio codec:[faad] X server image format not supported, Please contact the developers FATAL: Cannot initialise video driver FATAL: Could not initialise video filters Exiting.... (End of File) –  agg Mar 9 '11 at 10:41
    
Hi,this is the errot It Seems there is no Xvideo support for your video card available. Opening Video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selscted video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4) Forced Audio codec :MAD Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding) Selected audio codec:[faad] X server image format not supported, Please contact the developers FATAL: Cannot initialise video driver FATAL: Could not initialise video filters Exiting.... (End of File) –  agg Mar 9 '11 at 10:47

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