rm.h File Reference

#include "avformat.h"
#include "internal.h"

Go to the source code of this file.

Functions
RMStream *	ff_rm_alloc_rmstream (void)
void	ff_rm_free_rmstream (RMStream *rms)
int	ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *rst, unsigned int codec_data_size, const uint8_t *mime)
	Read the MDPR chunk, which contains stream-specific codec initialization parameters. More...
int	ff_rm_parse_packet (AVFormatContext *s, AVIOContext *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. More...
int	ff_rm_retrieve_cache (AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *rst, AVPacket *pkt)
	Retrieve one cached packet from the rm-context. More...

Variables
const char *const	ff_rm_metadata [4]
const AVCodecTag	ff_rm_codec_tags []
AVInputFormat	ff_rdt_demuxer

Function Documentation

RMStream* ff_rm_alloc_rmstream

(

void

)

Definition at line 113 of file rmdec.c.

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

void ff_rm_free_rmstream

(

RMStream *

rms

)

Definition at line 122 of file rmdec.c.

Referenced by rdt_close_context(), and rm_read_close().

int ff_rm_read_mdpr_codecdata	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVStream *	st,
		RMStream *	rst,
		unsigned int	codec_data_size,
		const uint8_t *	mime
	)

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

Parameters

s	context containing RMContext and AVIOContext 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 315 of file rmdec.c.

Referenced by ivr_read_header(), rdt_load_mdpr(), rm_read_header(), and rm_read_multi().

int ff_rm_parse_packet	(	AVFormatContext *	s,
		AVIOContext *	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 AVIOContext 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	the packet flags
ts	timestamp of the current packet

Returns

<0 on error, 0 if a packet was placed in the pkt pointer. A value >0 means that no data was placed in pkt, but that cached data is available by calling ff_rm_retrieve_cache().

Definition at line 886 of file rmdec.c.

Referenced by ivr_read_packet(), rdt_parse_packet(), and rm_read_packet().

int ff_rm_retrieve_cache	(	AVFormatContext *	s,
		AVIOContext *	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 AVIOContext 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 972 of file rmdec.c.

Referenced by ivr_read_packet(), rdt_parse_packet(), and rm_read_packet().

Variable Documentation

const char* const ff_rm_metadata[4]

Definition at line 24 of file rm.c.

Referenced by rm_read_metadata().

const AVCodecTag ff_rm_codec_tags[]

Definition at line 31 of file rm.c.

Referenced by ff_rm_read_mdpr_codecdata(), and rm_read_audio_stream_info().

AVInputFormat ff_rdt_demuxer

Definition at line 1154 of file rmdec.c.

Referenced by rdt_init().