Hacker Guide/Demux

Description

The modules of 'demux' capability are designed to handle the different "file" formats. They usually come after the access in the modules chain.

Examples of demuxers are WMV/ASF, Ogg or Mkv.

Write an demuxer module

To write an demuxer module, read the introduction to module writing.

Then, you should specify your module of being of demux type:

set_capability( "demux", 60 )  
set_category( CAT_INPUT )                                                                                                                                                                                  
set_subcategory( SUBCAT_INPUT_DEMUX )

Functions to implement

After implementing Open() and Close() functions, you will need to implement a few majors features that will be implemented by your functions.

As you can see include/vlc_demux.h, you should define:

• Seek, as in pf_seek
• Control, as in pf_control
• Read or Block, depending on your module type

After implementing those functions, you should assign them to the corresponding pf_ function.