Ancillary

Ancillary that can be attached to any vlc_frame_t or picture_t. More...

Collaboration diagram for Ancillary:

Topics
	Ancillary API
	Ancillary array API
	Ancillary IDs and data

Files
file	vlc_ancillary.h
	Ancillary definition and functions.

Detailed Description

Ancillary that can be attached to any vlc_frame_t or picture_t.

Ancillaries can be created from:

• packetized demuxer modules,
• packetizer modules,
• decoder modules.

Warning

Ancillaries should not be attached from a non packetized demuxer module since the attachment to the vlc_frame will be lost by the packetizer module that will be automatically inserted.

Ancillaries are automatically forwarded from a vlc_frame_t to an other vlc_frame_t and from a picture_t to an other picture_t. This allow to keep ancillaries untouched when audio filters or video filters are used (these filters don't have to know about the ancillary).

Ancillary readers can be either:

• A decoder module,
• An audio output,
• A video output,
• A video or audio filter.