FFmpeg: libavformat/rtpenc.h Source File

FFmpeg
rtpenc.h
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1 /*
2  * RTP muxer definitions
3  * Copyright (c) 2002 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 #ifndef AVFORMAT_RTPENC_H
22 #define AVFORMAT_RTPENC_H
23 
24 #include "avformat.h"
25 #include "rtp.h"
26 
27  struct RTPMuxContext {
28   const AVClass *av_class;
29   AVFormatContext *ic;
30   AVStream *st;
31   int payload_type;
32   uint32_t ssrc;
33   const char *cname;
34   int seq;
35   uint32_t timestamp;
36   uint32_t base_timestamp;
37   uint32_t cur_timestamp;
38   int max_payload_size;
39   int num_frames;
40 
41  /* rtcp sender statistics */
42   int64_t last_rtcp_ntp_time;
43   int64_t first_rtcp_ntp_time;
44   unsigned int packet_count;
45   unsigned int octet_count;
46   unsigned int last_octet_count;
47   int first_packet;
48  /* buffer for output */
49   uint8_t *buf;
50   uint8_t *buf_ptr;
51 
52   int max_frames_per_packet;
53 
54  /**
55  * Number of bytes used for H.264 NAL length, if the MP4 syntax is used
56  * (1, 2 or 4)
57  */
58   int nal_length_size;
59   int buffered_nals;
60 
61   int flags;
62 
63   unsigned int frame_count;
64 };
65 
66 typedef struct RTPMuxContext RTPMuxContext;
67 
68  #define FF_RTP_FLAG_MP4A_LATM 1
69  #define FF_RTP_FLAG_RFC2190 2
70  #define FF_RTP_FLAG_SKIP_RTCP 4
71  #define FF_RTP_FLAG_H264_MODE0 8
72  #define FF_RTP_FLAG_SEND_BYE 16
73 
74  #define FF_RTP_FLAG_OPTS(ctx, fieldname) \
75  { "rtpflags", "RTP muxer flags", offsetof(ctx, fieldname), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, .unit = "rtpflags" }, \
76  { "latm", "Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC", 0, AV_OPT_TYPE_CONST, {.i64 = FF_RTP_FLAG_MP4A_LATM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, .unit = "rtpflags" }, \
77  { "rfc2190", "Use RFC 2190 packetization instead of RFC 4629 for H.263", 0, AV_OPT_TYPE_CONST, {.i64 = FF_RTP_FLAG_RFC2190}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, .unit = "rtpflags" }, \
78  { "skip_rtcp", "Don't send RTCP sender reports", 0, AV_OPT_TYPE_CONST, {.i64 = FF_RTP_FLAG_SKIP_RTCP}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, .unit = "rtpflags" }, \
79  { "h264_mode0", "Use mode 0 for H.264 in RTP", 0, AV_OPT_TYPE_CONST, {.i64 = FF_RTP_FLAG_H264_MODE0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, .unit = "rtpflags" }, \
80  { "send_bye", "Send RTCP BYE packets when finishing", 0, AV_OPT_TYPE_CONST, {.i64 = FF_RTP_FLAG_SEND_BYE}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, .unit = "rtpflags" } \
81 
82 void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m);
83 
84 void ff_rtp_send_h264_hevc(AVFormatContext *s1, const uint8_t *buf1, int size);
85 void ff_rtp_send_h261(AVFormatContext *s1, const uint8_t *buf1, int size);
86 void ff_rtp_send_h263(AVFormatContext *s1, const uint8_t *buf1, int size);
87 void ff_rtp_send_h263_rfc2190(AVFormatContext *s1, const uint8_t *buf1, int size,
88  const uint8_t *mb_info, int mb_info_size);
89 void ff_rtp_send_aac(AVFormatContext *s1, const uint8_t *buff, int size);
90 void ff_rtp_send_latm(AVFormatContext *s1, const uint8_t *buff, int size);
91 void ff_rtp_send_amr(AVFormatContext *s1, const uint8_t *buff, int size);
92 void ff_rtp_send_mpegvideo(AVFormatContext *s1, const uint8_t *buf1, int size);
93 void ff_rtp_send_xiph(AVFormatContext *s1, const uint8_t *buff, int size);
94 void ff_rtp_send_vc2hq(AVFormatContext *s1, const uint8_t *buf, int size, int interlaced);
95 void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buff, int size);
96 void ff_rtp_send_vp9(AVFormatContext *s1, const uint8_t *buff, int size);
97 void ff_rtp_send_av1(AVFormatContext *s1, const uint8_t *buf1, int size, int is_keyframe);
98 void ff_rtp_send_jpeg(AVFormatContext *s1, const uint8_t *buff, int size);
99 void ff_rtp_send_raw_rfc4175(AVFormatContext *s1, const uint8_t *buf, int size, int interlaced, int field);
100 
101 const uint8_t *ff_h263_find_resync_marker_reverse(const uint8_t *restrict start,
102  const uint8_t *restrict end);
103 
104 #endif /* AVFORMAT_RTPENC_H */
ff_rtp_send_aac
void ff_rtp_send_aac(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_aac.c:27
ff_rtp_send_jpeg
void ff_rtp_send_jpeg(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_jpeg.c:28
ff_rtp_send_h263_rfc2190
void ff_rtp_send_h263_rfc2190(AVFormatContext *s1, const uint8_t *buf1, int size, const uint8_t *mb_info, int mb_info_size)
Definition: rtpenc_h263_rfc2190.c:101
ff_rtp_send_h261
void ff_rtp_send_h261(AVFormatContext *s1, const uint8_t *buf1, int size)
Definition: rtpenc_h261.c:39
RTPMuxContext::base_timestamp
uint32_t base_timestamp
Definition: rtpenc.h:36
int64_t
long long int64_t
Definition: coverity.c:34
ff_rtp_send_av1
void ff_rtp_send_av1(AVFormatContext *s1, const uint8_t *buf1, int size, int is_keyframe)
Definition: rtpenc_av1.c:42
RTPMuxContext::seq
int seq
Definition: rtpenc.h:34
ff_rtp_send_mpegvideo
void ff_rtp_send_mpegvideo(AVFormatContext *s1, const uint8_t *buf1, int size)
Definition: rtpenc_mpv.c:29
RTPMuxContext::st
AVStream * st
Definition: rtpenc.h:30
RTPMuxContext::ssrc
uint32_t ssrc
Definition: rtpenc.h:32
ff_rtp_send_latm
void ff_rtp_send_latm(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_latm.c:25
ff_rtp_send_raw_rfc4175
void ff_rtp_send_raw_rfc4175(AVFormatContext *s1, const uint8_t *buf, int size, int interlaced, int field)
Definition: rtpenc_rfc4175.c:24
field
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this field
Definition: writing_filters.txt:78
RTPMuxContext::flags
int flags
Definition: rtpenc.h:61
RTPMuxContext::num_frames
int num_frames
Definition: rtpenc.h:39
RTPMuxContext::last_rtcp_ntp_time
int64_t last_rtcp_ntp_time
Definition: rtpenc.h:42
RTPMuxContext::cur_timestamp
uint32_t cur_timestamp
Definition: rtpenc.h:37
AVFormatContext
Format I/O context.
Definition: avformat.h:1264
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:76
RTPMuxContext::packet_count
unsigned int packet_count
Definition: rtpenc.h:44
RTPMuxContext::cname
const char * cname
Definition: rtpenc.h:33
RTPMuxContext
Definition: rtpenc.h:27
RTPMuxContext::buf
uint8_t * buf
Definition: rtpenc.h:49
RTPMuxContext::payload_type
int payload_type
Definition: rtpenc.h:31
RTPMuxContext::timestamp
uint32_t timestamp
Definition: rtpenc.h:35
RTPMuxContext::first_packet
int first_packet
Definition: rtpenc.h:47
size
int size
Definition: twinvq_data.h:10344
RTPMuxContext::frame_count
unsigned int frame_count
Definition: rtpenc.h:63
rtp.h
interlaced
uint8_t interlaced
Definition: mxfenc.c:2334
ff_rtp_send_vp8
void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_vp8.c:26
RTPMuxContext::first_rtcp_ntp_time
int64_t first_rtcp_ntp_time
Definition: rtpenc.h:43
ff_rtp_send_vp9
void ff_rtp_send_vp9(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_vp9.c:26
len
int len
Definition: vorbis_enc_data.h:426
ff_rtp_send_vc2hq
void ff_rtp_send_vc2hq(AVFormatContext *s1, const uint8_t *buf, int size, int interlaced)
Definition: rtpenc_vc2hq.c:106
AVStream
Stream structure.
Definition: avformat.h:744
avformat.h
ff_rtp_send_h264_hevc
void ff_rtp_send_h264_hevc(AVFormatContext *s1, const uint8_t *buf1, int size)
Definition: rtpenc_h264_hevc.c:181
ff_rtp_send_amr
void ff_rtp_send_amr(AVFormatContext *s1, const uint8_t *buff, int size)
Packetize AMR frames into RTP packets according to RFC 3267, in octet-aligned mode.
Definition: rtpenc_amr.c:30
RTPMuxContext::max_frames_per_packet
int max_frames_per_packet
Definition: rtpenc.h:52
RTPMuxContext::max_payload_size
int max_payload_size
Definition: rtpenc.h:38
RTPMuxContext::ic
AVFormatContext * ic
Definition: rtpenc.h:29
ff_rtp_send_h263
void ff_rtp_send_h263(AVFormatContext *s1, const uint8_t *buf1, int size)
Packetize H.263 frames into RTP packets according to RFC 4629.
Definition: rtpenc_h263.c:43
ff_h263_find_resync_marker_reverse
const uint8_t * ff_h263_find_resync_marker_reverse(const uint8_t *restrict start, const uint8_t *restrict end)
Definition: rtpenc_h263.c:26
RTPMuxContext::octet_count
unsigned int octet_count
Definition: rtpenc.h:45
RTPMuxContext::av_class
const AVClass * av_class
Definition: rtpenc.h:28
RTPMuxContext::last_octet_count
unsigned int last_octet_count
Definition: rtpenc.h:46
RTPMuxContext::buf_ptr
uint8_t * buf_ptr
Definition: rtpenc.h:50
ff_rtp_send_data
void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m)
Definition: rtpenc.c:356
RTPMuxContext::buffered_nals
int buffered_nals
Definition: rtpenc.h:59
ff_rtp_send_xiph
void ff_rtp_send_xiph(AVFormatContext *s1, const uint8_t *buff, int size)
Packetize Xiph frames into RTP according to RFC 5215 (Vorbis) and the Theora RFC draft.
Definition: rtpenc_xiph.c:33
RTPMuxContext::nal_length_size
int nal_length_size
Number of bytes used for H.264 NAL length, if the MP4 syntax is used (1, 2 or 4)
Definition: rtpenc.h:58
mb_info
Definition: cinepakenc.c:87
is_keyframe
static int is_keyframe(NalUnitType naltype)
Definition: libx265.c:93
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