[vlc] Re: MPEG-4 audio problem

[Jean-Paul Saman]

Kelvin Woods wrote:
> On Sun, Nov 16, 2003 at 03:49:13PM +0100, Jean-Paul Saman wrote:
>  
> 
>>What I think is that the conversion with Quicktime Pro produced a file 
>>that is not suitable for streaming. The file does not repeat certain 
>>MPEG headers for audio enough, so that the client gets confused when the 
>>file is streamed. I am not sure because VLC just tries to correct these 
>>things.
>>
>>A test could be to convert the original file with VLC? Or is it in a 
>>format VLC does not understand?? 
>>And then stream it using VLC and see if it has the same problems.
> 
> 
> The original files are all in QT of some description. 
> 
> Some of them are were created using LiveStage Pro, exported as QT movies
> and then converted to MPEG-4 with QT pro.
> 
> It would seem that vlc doesn't fully understand the format of the files.
> On starting vlc (attempting to stream the files) it issues the following
> warnings:
> 
> [00000130] mp4 input warning: Detected moov hidden in a free box ...
> [00000130] mp4 input warning: Unknown box type alis (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type wave (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type alis (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hint (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type gmin (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type alis (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type rtp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type name (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type sdp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hinf (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hint (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type gmin (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type alis (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type rtp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type name (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type sdp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hinf (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hinv (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type rtp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hint (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type rtp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type name (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type sdp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hinf (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hint (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type rtp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type name (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type sdp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hinf (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type mp4s (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type mpod (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type mp4s (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type hinv (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type rtp  (uncompletetly loaded)
> [00000130] mp4 input warning: Unknown box type iods (uncompletetly loaded)
> [00000132] packetizer_mpeg4audio decoder: Running MPEG4 audio packetizer
> [00000133] packetizer_mpeg4video decoder: Running MPEG4 Video packetizer
> 
> 
> I'm not sure whether these warnings are connected with the lack of audio
> on the client side.

They are connected. I do not know in what way however. I think fenrir 
should look at this. Could you provide a sample file? So that fenrir can 
  look at it.

> BTW these files stream perfectly from the same server using Darwin SS.
> 
> Thanks for the help so far with this.
> 

Fenrir could you shed some light on this?

-- 
Kind greetings,

Jean-Paul Saman



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