libavformat/rm.h File Reference

#include "avformat.h"

Go to the source code of this file.

Typedefs
typedef struct RMStream	RMStream
Functions
RMStream *	ff_rm_alloc_rmstream (void)
void	ff_rm_free_rmstream (RMStream *rms)
int	ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb, AVStream *st, RMStream *rst, int codec_data_size)
	Read the MDPR chunk, which contains stream-specific codec initialization parameters.
int	ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb, AVStream *st, RMStream *rst, int len, AVPacket *pkt, int *seq, int *flags, int64_t *ts)
	Parse one rm-stream packet from the input bytestream.
int	ff_rm_retrieve_cache (AVFormatContext *s, ByteIOContext *pb, AVStream *st, RMStream *rst, AVPacket *pkt)
	Retrieve one cached packet from the rm-context.
Variables
const char *	ff_rm_metadata [4]
AVInputFormat	rdt_demuxer

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Typedef Documentation

typedef struct RMStream RMStream

Definition at line 29 of file rm.h.

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Function Documentation

RMStream* ff_rm_alloc_rmstream

(

void

)

Definition at line 81 of file rmdec.c.

Referenced by rdt_parse_sdp_line(), rm_read_header(), and rm_read_header_old().

void ff_rm_free_rmstream

(

RMStream *

rms

)

Definition at line 88 of file rmdec.c.

Referenced by rdt_free_extradata(), and rm_read_close().

int ff_rm_parse_packet	(	AVFormatContext *	s,
		ByteIOContext *	pb,
		AVStream *	st,
		RMStream *	rst,
		int	len,
		AVPacket *	pkt,
		int *	seq,
		int *	flags,
		int64_t *	ts
	)

Parse one rm-stream packet from the input bytestream.

Parameters:

	s	context containing RMContext and ByteIOContext for stream reading
	pb	context to read the data from
	st	stream to which the packet to be read belongs
	rst	Real-specific stream information
	len	packet length to read from the input
	pkt	packet location to store the parsed packet data
	seq	pointer to an integer containing the sequence number, may be updated
	flags	pointer to an integer containing the packet flags, may be updated
	ts	pointer to timestamp, may be updated

Returns:

>=0 on success (where >0 indicates there are cached samples that can be retrieved with subsequent calls to ff_rm_retrieve_cache()), errno codes on error

Definition at line 578 of file rmdec.c.

Referenced by rdt_parse_packet(), and rm_read_packet().

int ff_rm_read_mdpr_codecdata	(	AVFormatContext *	s,
		ByteIOContext *	pb,
		AVStream *	st,
		RMStream *	rst,
		int	codec_data_size
	)

Read the MDPR chunk, which contains stream-specific codec initialization parameters.

Parameters:

	s	context containing RMContext and ByteIOContext for stream reading
	pb	context to read the data from
	st	the stream that the MDPR chunk belongs to and where to store the parameters read from the chunk into
	rst	real-specific stream information
	codec_data_size	size of the MDPR chunk

Returns:

0 on success, errno codes on error

Definition at line 228 of file rmdec.c.

Referenced by rdt_load_mdpr(), and rm_read_header().

int ff_rm_retrieve_cache	(	AVFormatContext *	s,
		ByteIOContext *	pb,
		AVStream *	st,
		RMStream *	rst,
		AVPacket *	pkt
	)

Retrieve one cached packet from the rm-context.

The real container can store several packets (as interpreted by the codec) in a single container packet, which means the demuxer holds some back when the first container packet is parsed and returned. The result is that rm->audio_pkt_cnt is a positive number, the amount of cached packets. Using this function, each of those packets can be retrieved sequentially.

Parameters:

	s	context containing RMContext and ByteIOContext for stream reading
	pb	context to read the data from
	st	stream that this packet belongs to
	rst	Real-specific stream information
	pkt	location to store the packet data

Returns:

the number of samples left for subsequent calls to this same function, or 0 if all samples have been retrieved.

Definition at line 677 of file rmdec.c.

Referenced by rdt_parse_packet(), and rm_read_packet().

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Variable Documentation

const char* ff_rm_metadata[4]

Definition at line 24 of file rm.c.

Referenced by rm_read_metadata(), and rv10_write_header().

AVInputFormat rdt_demuxer

Definition at line 839 of file rmdec.c.

Referenced by rdt_new_extradata().