rtpdec_mpeg4.c File Reference

Common code for the RTP depacketization of MPEG-4 formats. More...

#include "rtpdec_formats.h"
#include "internal.h"
#include "libavutil/avstring.h"
#include "libavcodec/get_bits.h"

Go to the source code of this file.

Data Structures

struct  PayloadContext
 RTP/H264 specific private data. More...
struct  PayloadContext::AUHeaders
 mpeg 4 AU headers More...
struct  AttrNameMap

Macros

#define ATTR_NAME_TYPE_INT   0
#define ATTR_NAME_TYPE_STR   1

Functions

static PayloadContextnew_context (void)
static void free_context (PayloadContext *data)
static int parse_fmtp_config (AVCodecContext *codec, char *value)
static int rtp_parse_mp4_au (PayloadContext *data, const uint8_t *buf)
static int aac_parse_packet (AVFormatContext *ctx, PayloadContext *data, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, int flags)
static int parse_fmtp (AVStream *stream, PayloadContext *data, char *attr, char *value)
static int parse_sdp_line (AVFormatContext *s, int st_index, PayloadContext *data, const char *line)

Variables

static const AttrNameMap attr_names []
RTPDynamicProtocolHandler ff_mp4v_es_dynamic_handler
RTPDynamicProtocolHandler ff_mpeg4_generic_dynamic_handler

Detailed Description

Common code for the RTP depacketization of MPEG-4 formats.

Copyright (c) 2010 Fabrice Bellard Romain Degez

This file is part of Libav.

Libav is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

Libav is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with Libav; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

MPEG4 / RTP Code

Author
Fabrice Bellard
Romain Degez

Definition in file rtpdec_mpeg4.c.

Macro Definition Documentation

#define ATTR_NAME_TYPE_INT   0

Definition at line 70 of file rtpdec_mpeg4.c.

Referenced by parse_fmtp().

#define ATTR_NAME_TYPE_STR   1

Definition at line 71 of file rtpdec_mpeg4.c.

Referenced by parse_fmtp().

Function Documentation

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

Definition at line 170 of file rtpdec_mpeg4.c.

static void free_context ( PayloadContext data)
static

Definition at line 94 of file rtpdec_mpeg4.c.

static PayloadContext* new_context ( void  )
static

Definition at line 89 of file rtpdec_mpeg4.c.

static int parse_fmtp ( AVStream stream,
PayloadContext data,
char *  attr,
char *  value 
)
static

Definition at line 192 of file rtpdec_mpeg4.c.

Referenced by parse_sdp_line().

static int parse_fmtp_config ( AVCodecContext codec,
char *  value 
)
static

Definition at line 109 of file rtpdec_mpeg4.c.

Referenced by parse_fmtp().

static int parse_sdp_line ( AVFormatContext s,
int  st_index,
PayloadContext data,
const char *  line 
)
static

Definition at line 221 of file rtpdec_mpeg4.c.

static int rtp_parse_mp4_au ( PayloadContext data,
const uint8_t *  buf 
)
static

Definition at line 122 of file rtpdec_mpeg4.c.

Referenced by aac_parse_packet().

Variable Documentation

const AttrNameMap attr_names[]
static
Initial value:
{
{ "SizeLength", ATTR_NAME_TYPE_INT,
0x42 },
{ "IndexLength", ATTR_NAME_TYPE_INT,
0x42 },
{ "IndexDeltaLength", ATTR_NAME_TYPE_INT,
0x42 },
{ "profile-level-id", ATTR_NAME_TYPE_INT,
0x42 },
{ "StreamType", ATTR_NAME_TYPE_INT,
0x42 },
{ "mode", ATTR_NAME_TYPE_STR,
0x42 },
{ NULL, -1, -1 },
}

Definition at line 72 of file rtpdec_mpeg4.c.

RTPDynamicProtocolHandler ff_mp4v_es_dynamic_handler
Initial value:
{
.enc_name = "MP4V-ES",
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = CODEC_ID_MPEG4,
.parse_sdp_a_line = parse_sdp_line,
}

Definition at line 232 of file rtpdec_mpeg4.c.

Referenced by av_register_rtp_dynamic_payload_handlers().

RTPDynamicProtocolHandler ff_mpeg4_generic_dynamic_handler
Initial value:
{
.enc_name = "mpeg4-generic",
.codec_type = AVMEDIA_TYPE_AUDIO,
.codec_id = CODEC_ID_AAC,
.parse_sdp_a_line = parse_sdp_line,
.alloc = new_context,
.free = free_context,
.parse_packet = aac_parse_packet
}

Definition at line 239 of file rtpdec_mpeg4.c.

Referenced by av_register_rtp_dynamic_payload_handlers().