Re: [mpeg2-dev] MPEG files with audio

[Keith W. <ke...@MI...>]

Hi Gus,

libmpeg2 itself can only parse an MPEG video elementary stream -- video 
only.

Within the MPEG-2 world, a stream that combines video and audio is an 
MPEG-2 systems stream -- either a transport stream or a program stream. 
You can demultiplex these with the mpeg2dec and extract_mpeg2 example 
programs that ship with libmpeg2.

They only pull out the video, but you can tweak them to do audio or a 
different stream. liba52 ships with extract_a52, which can pull out AC-3 
audio from an MPEG system stream like like extract_mpeg2 does for video.

Best,
Keith

On Wed, 15 Jul 2009, Gus Issa wrote:

> Hello,
>  
> Does libmpeg2 decode MPEG files with audio in them? I know the library
> itself doesn't decode the audio but is there a way to get the audio data
> from the library since it is already parsing the MPEG file?
>  
> Gus
> 
>