Chained demultiplexer

Demultiplexers wrapped by another demultiplexer. More...

Collaboration diagram for Chained demultiplexer:

Typedefs
typedef struct vlc_demux_chained_t	vlc_demux_chained_t

Functions
vlc_demux_chained_t *	vlc_demux_chained_New (vlc_object_t *parent, const char *name, es_out_t *out)
	Creates a chained demuxer. More...
void	vlc_demux_chained_Delete (vlc_demux_chained_t *)
	Destroys a chained demuxer. More...
void	vlc_demux_chained_Send (vlc_demux_chained_t *, block_t *block)
	Sends data to a chained demuxer. More...
int	vlc_demux_chained_ControlVa (vlc_demux_chained_t *, int query, va_list args)
	Controls a chained demuxer. More...
static int	vlc_demux_chained_Control (vlc_demux_chained_t *dc, int query,...)

Detailed Description

Demultiplexers wrapped by another demultiplexer.

Typedef Documentation

vlc_demux_chained_t

typedef struct vlc_demux_chained_t vlc_demux_chained_t

Function Documentation

vlc_demux_chained_Control()

static int vlc_demux_chained_Control ( vlc_demux_chained_t *  dc, int  query,   ...  )

inlinestatic

References vlc_demux_chained_ControlVa().

vlc_demux_chained_ControlVa()

int vlc_demux_chained_ControlVa	(	vlc_demux_chained_t *	dc,
		int	query,
		va_list	args
	)

Controls a chained demuxer.

This performs a demux (i.e. DEMUX_...) control request on a chained demux.

Note

In most cases, vlc_demux_chained_Control() should be used instead.

Warning

As per vlc_demux_chained_New(), most demux controls are not, and cannot be, supported; VLC_EGENERIC is returned.

Parameters

query	demux control (see demux_query_e)
args	variable arguments (depending on the query)

References DEMUX_GET_LENGTH, DEMUX_GET_POSITION, DEMUX_GET_TIME, vlc_demux_chained_t::length, vlc_demux_chained_t::lock, vlc_demux_chained_t::position, vlc_demux_chained_t::stats, vlc_demux_chained_t::time, VLC_EGENERIC, vlc_mutex_lock(), vlc_mutex_unlock(), and VLC_SUCCESS.

Referenced by Control(), and vlc_demux_chained_Control().

vlc_demux_chained_Delete()

void vlc_demux_chained_Delete

(

vlc_demux_chained_t *

dc

)

Destroys a chained demuxer.

Sends an end-of-stream to the chained demuxer, and releases all underlying allocated resources.

References vlc_demux_chained_t::thread, vlc_join(), vlc_stream_fifo_Close(), and vlc_demux_chained_t::writer.

Referenced by vlc_rtp_es_mux_destroy().

vlc_demux_chained_New()

vlc_demux_chained_t * vlc_demux_chained_New	(	vlc_object_t *	parent,
		const char *	name,
		es_out_t *	out
	)

Creates a chained demuxer.

This creates a thread running a demuxer whose input stream is generated directly by the caller. This typically handles some sort of stream within a stream, e.g. MPEG-TS within something else.

Note

There are a number of limitations to this approach. The chained demuxer is run asynchronously in a separate thread. Most demuxer controls are synchronous and therefore unavailable in this case. Also the input stream is a simple FIFO, so the chained demuxer cannot perform seeks. Lastly, most errors cannot be detected.

Parameters

parent	parent VLC object
name	chained demux module name (e.g. "ts")
out	elementary stream output for the chained demux

Returns

a non-NULL pointer on success, NULL on failure.

References vlc_demux_chained_t::length, vlc_demux_chained_t::lock, name, vlc_demux_chained_t::name, vlc_demux_chained_t::out, vlc_demux_chained_t::position, vlc_demux_chained_t::reader, vlc_demux_chained_t::stats, vlc_demux_chained_t::thread, vlc_demux_chained_t::time, unlikely, vlc_clone(), vlc_demux_chained_Thread(), vlc_mutex_init(), vlc_stream_Delete(), vlc_stream_fifo_Close(), vlc_stream_fifo_New(), and vlc_demux_chained_t::writer.

Referenced by vlc_rtp_mux_request().

vlc_demux_chained_Send()

void vlc_demux_chained_Send	(	vlc_demux_chained_t *	dc,
		block_t *	block
	)

Sends data to a chained demuxer.

This queues data for a chained demuxer to consume.

Parameters

block

data block to queue

References vlc_stream_fifo_Queue(), and vlc_demux_chained_t::writer.

Referenced by vlc_rtp_es_mux_send().