libavformat/rtpdec_xiph.c File Reference

Xiph / RTP Code. More...

#include "libavutil/avstring.h"
#include "libavutil/base64.h"
#include "libavcodec/bytestream.h"
#include <assert.h>
#include "rtpdec.h"
#include "rtpdec_formats.h"

Go to the source code of this file.

Data Structures
struct	PayloadContext
	RTP/H264 specific private data. More...
Functions
static PayloadContext *	xiph_new_context (void)
static void	free_fragment_if_needed (PayloadContext *data)
static void	xiph_free_context (PayloadContext *data)
static int	xiph_handle_packet (AVFormatContext *ctx, PayloadContext *data, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, int flags)
static int	get_base128 (const uint8_t **buf, const uint8_t *buf_end)
	Length encoding described in RFC5215 section 3.1.1.
static unsigned int	parse_packed_headers (const uint8_t *packed_headers, const uint8_t *packed_headers_end, AVCodecContext *codec, PayloadContext *xiph_data)
	Based off parse_packed_headers in Vorbis RTP.
static int	xiph_parse_fmtp_pair (AVStream *stream, PayloadContext *xiph_data, char *attr, char *value)
static int	xiph_parse_sdp_line (AVFormatContext *s, int st_index, PayloadContext *data, const char *line)
Variables
RTPDynamicProtocolHandler	ff_theora_dynamic_handler
RTPDynamicProtocolHandler	ff_vorbis_dynamic_handler

---

Detailed Description

Xiph / RTP Code.

Author:

Colin McQuillan <m.niloc@gmail.com>

Josh Allmann <joshua.allmann@gmail.com>

Definition in file rtpdec_xiph.c.

---

Function Documentation

static void free_fragment_if_needed

(

PayloadContext *

data

)

[inline, static]

Definition at line 56 of file rtpdec_xiph.c.

Referenced by xiph_free_context(), and xiph_handle_packet().

static int get_base128	(	const uint8_t **	buf,
		const uint8_t *	buf_end
	)			[static]

Length encoding described in RFC5215 section 3.1.1.

Definition at line 229 of file rtpdec_xiph.c.

Referenced by parse_packed_headers().

static unsigned int parse_packed_headers	(	const uint8_t *	packed_headers,
		const uint8_t *	packed_headers_end,
		AVCodecContext *	codec,
		PayloadContext *	xiph_data
	)			[static]

Based off parse_packed_headers in Vorbis RTP.

Definition at line 247 of file rtpdec_xiph.c.

Referenced by xiph_parse_fmtp_pair().

static void xiph_free_context

(

PayloadContext *

data

)

[static]

Definition at line 66 of file rtpdec_xiph.c.

static int xiph_handle_packet	(	AVFormatContext *	ctx,
		PayloadContext *	data,
		AVStream *	st,
		AVPacket *	pkt,
		uint32_t *	timestamp,
		const uint8_t *	buf,
		int	len,
		int	flags
	)			[static]

Definition at line 73 of file rtpdec_xiph.c.

static PayloadContext* xiph_new_context

(

void

)

[static]

Definition at line 51 of file rtpdec_xiph.c.

static int xiph_parse_fmtp_pair	(	AVStream *	stream,
		PayloadContext *	xiph_data,
		char *	attr,
		char *	value
	)			[static]

Definition at line 307 of file rtpdec_xiph.c.

Referenced by xiph_parse_sdp_line().

static int xiph_parse_sdp_line	(	AVFormatContext *	s,
		int	st_index,
		PayloadContext *	data,
		const char *	line
	)			[static]

Definition at line 374 of file rtpdec_xiph.c.

---

Variable Documentation

RTPDynamicProtocolHandler ff_theora_dynamic_handler

Initial value:

 {
    .enc_name         = "theora",
    .codec_type       = AVMEDIA_TYPE_VIDEO,
    .codec_id         = CODEC_ID_THEORA,
    .parse_sdp_a_line = xiph_parse_sdp_line,
    .alloc            = xiph_new_context,
    .free             = xiph_free_context,
    .parse_packet     = xiph_handle_packet
}

Definition at line 387 of file rtpdec_xiph.c.

Referenced by av_register_rtp_dynamic_payload_handlers().

RTPDynamicProtocolHandler ff_vorbis_dynamic_handler

Initial value:

 {
    .enc_name         = "vorbis",
    .codec_type       = AVMEDIA_TYPE_AUDIO,
    .codec_id         = CODEC_ID_VORBIS,
    .parse_sdp_a_line = xiph_parse_sdp_line,
    .alloc            = xiph_new_context,
    .free             = xiph_free_context,
    .parse_packet     = xiph_handle_packet
}

Definition at line 397 of file rtpdec_xiph.c.

Referenced by av_register_rtp_dynamic_payload_handlers().