libavformat/rtpenc.h

   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_jpeg(AVFormatContext *s1, const uint8_t *buff, int size);
  98 void ff_rtp_send_raw_rfc4175(AVFormatContext *s1, const uint8_t *buf, int size, int interlaced, int field);
  99
 100 const uint8_t *ff_h263_find_resync_marker_reverse(const uint8_t *restrict start,
 101                                                   const uint8_t *restrict end);
 102
 103 #endif /* AVFORMAT_RTPENC_H */