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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;
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;
40 
41  /* rtcp sender statistics */
44  unsigned int packet_count;
45  unsigned int octet_count;
46  unsigned int last_octet_count;
48  /* buffer for output */
51 
53 
54  /**
55  * Number of bytes used for H.264 NAL length, if the MP4 syntax is used
56  * (1, 2 or 4)
57  */
59 
60  int flags;
61 
62  unsigned int frame_count;
63 };
64 
65 typedef struct RTPMuxContext RTPMuxContext;
66 
67 #define FF_RTP_FLAG_MP4A_LATM 1
68 #define FF_RTP_FLAG_RFC2190 2
69 #define FF_RTP_FLAG_SKIP_RTCP 4
70 #define FF_RTP_FLAG_H264_MODE0 8
71 
72 #define FF_RTP_FLAG_OPTS(ctx, fieldname) \
73  { "rtpflags", "RTP muxer flags", offsetof(ctx, fieldname), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "rtpflags" }, \
74  { "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" }, \
75  { "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" }, \
76  { "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" }, \
77  { "h264_mode0", "Use mode 0 for H264 in RTP", 0, AV_OPT_TYPE_CONST, {.i64 = FF_RTP_FLAG_H264_MODE0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "rtpflags" } \
78 
79 void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m);
80 
81 void ff_rtp_send_h264(AVFormatContext *s1, const uint8_t *buf1, int size);
82 void ff_rtp_send_h263(AVFormatContext *s1, const uint8_t *buf1, int size);
84  const uint8_t *mb_info, int mb_info_size);
85 void ff_rtp_send_aac(AVFormatContext *s1, const uint8_t *buff, int size);
86 void ff_rtp_send_latm(AVFormatContext *s1, const uint8_t *buff, int size);
87 void ff_rtp_send_amr(AVFormatContext *s1, const uint8_t *buff, int size);
88 void ff_rtp_send_mpegvideo(AVFormatContext *s1, const uint8_t *buf1, int size);
89 void ff_rtp_send_xiph(AVFormatContext *s1, const uint8_t *buff, int size);
90 void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buff, int size);
91 void ff_rtp_send_jpeg(AVFormatContext *s1, const uint8_t *buff, int size);
92 
94  const uint8_t *av_restrict end);
95 
96 #endif /* AVFORMAT_RTPENC_H */