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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
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  */
24 #include "avformat.h"
25 #include "rtp.h"
27 struct RTPMuxContext {
28  const AVClass *av_class;
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;
41  /* rtcp sender statistics */
44  unsigned int packet_count;
45  unsigned int octet_count;
46  unsigned int last_octet_count;
48  /* buffer for output */
54  /**
55  * Number of bytes used for H.264 NAL length, if the MP4 syntax is used
56  * (1, 2 or 4)
57  */
61  int flags;
63  unsigned int frame_count;
64 };
66 typedef struct RTPMuxContext RTPMuxContext;
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
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, "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, "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, "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, "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, "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, "rtpflags" } \
82 void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m);
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);
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);
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_jpeg(AVFormatContext *s1, const uint8_t *buff, int size);
100  const uint8_t *av_restrict end);
102 #endif /* AVFORMAT_RTPENC_H */
int payload_type
Definition: rtpenc.h:31
int64_t last_rtcp_ntp_time
Definition: rtpenc.h:42
unsigned int last_octet_count
Definition: rtpenc.h:46
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
int max_payload_size
Definition: rtpenc.h:38
AVFormatContext * ic
Definition: rtpenc.h:29
void ff_rtp_send_vc2hq(AVFormatContext *s1, const uint8_t *buf, int size, int interlaced)
Definition: rtpenc_vc2hq.c:102
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
Format I/O context.
Definition: avformat.h:1327
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int max_frames_per_packet
Definition: rtpenc.h:52
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
void ff_rtp_send_vp9(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_vp9.c:26
unsigned int frame_count
Definition: rtpenc.h:63
unsigned int octet_count
Definition: rtpenc.h:45
void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m)
Definition: rtpenc.c:330
uint8_t * buf
Definition: rtpenc.h:49
ptrdiff_t size
Definition: opengl_enc.c:101
uint32_t ssrc
Definition: rtpenc.h:32
void ff_rtp_send_aac(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_aac.c:27
void ff_rtp_send_jpeg(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_jpeg.c:28
void ff_rtp_send_latm(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_latm.c:25
void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buff, int size)
Definition: rtpenc_vp8.c:26
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
uint8_t interlaced
Definition: mxfenc.c:1824
void ff_rtp_send_h261(AVFormatContext *s1, const uint8_t *buf1, int size)
Definition: rtpenc_h261.c:39
void ff_rtp_send_h264_hevc(AVFormatContext *s1, const uint8_t *buf1, int size)
void ff_rtp_send_mpegvideo(AVFormatContext *s1, const uint8_t *buf1, int size)
Definition: rtpenc_mpv.c:29
Stream structure.
Definition: avformat.h:878
int64_t first_rtcp_ntp_time
Definition: rtpenc.h:43
uint32_t cur_timestamp
Definition: rtpenc.h:37
AVStream * st
Definition: rtpenc.h:30
int first_packet
Definition: rtpenc.h:47
void * buf
Definition: avisynth_c.h:690
Describe the class of an AVClass context structure.
Definition: log.h:67
int buffered_nals
Definition: rtpenc.h:59
int flags
Definition: rtpenc.h:61
#define s1
Definition: regdef.h:38
int num_frames
Definition: rtpenc.h:39
uint32_t base_timestamp
Definition: rtpenc.h:36
uint8_t * buf_ptr
Definition: rtpenc.h:50
const AVClass * av_class
Definition: rtpenc.h:28
Main libavformat public API header.
unsigned int packet_count
Definition: rtpenc.h:44
uint32_t timestamp
Definition: rtpenc.h:35
int len
void ff_rtp_send_h263_rfc2190(AVFormatContext *s1, const uint8_t *buf1, int size, const uint8_t *mb_info, int mb_info_size)
void INT64 start
Definition: avisynth_c.h:690
const uint8_t * ff_h263_find_resync_marker_reverse(const uint8_t *av_restrict start, const uint8_t *av_restrict end)
Definition: rtpenc_h263.c:26
const char * cname
Definition: rtpenc.h:33