/*
  * RTP muxer definitions
  * Copyright (c) 2002 Fabrice Bellard
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg 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.
  *
  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #ifndef AVFORMAT_RTPENC_H
 #define AVFORMAT_RTPENC_H
 
 #include "avformat.h"
 #include "rtp.h"
 
 struct RTPMuxContext {

     const AVClass *av_class;

     AVFormatContext *ic;
     AVStream *st;
     int payload_type;
     uint32_t ssrc;

     const char *cname;

     int seq;

     uint32_t timestamp;
     uint32_t base_timestamp;
     uint32_t cur_timestamp;
     int max_payload_size;
     int num_frames;
 

     /* rtcp sender statistics */

     int64_t last_rtcp_ntp_time;
     int64_t first_rtcp_ntp_time;
     unsigned int packet_count;
     unsigned int octet_count;
     unsigned int last_octet_count;

     int first_packet;
     /* buffer for output */

     uint8_t *buf;

     uint8_t *buf_ptr;
 
     int max_frames_per_packet;

 
     /**
      * Number of bytes used for H.264 NAL length, if the MP4 syntax is used
      * (1, 2 or 4)
      */
     int nal_length_size;

 
     int flags;

 
     unsigned int frame_count;

 };
 
 typedef struct RTPMuxContext RTPMuxContext;
 

 #define FF_RTP_FLAG_MP4A_LATM 1

 #define FF_RTP_FLAG_RFC2190   2

 #define FF_RTP_FLAG_SKIP_RTCP 4

 #define FF_RTP_FLAG_H264_MODE0 8

 #define FF_RTP_FLAG_SEND_BYE  16

 #define FF_RTP_FLAG_OPTS(ctx, fieldname) \

     { "rtpflags", "RTP muxer flags", offsetof(ctx, fieldname), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "rtpflags" }, \

     { "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" }, \
     { "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" }, \
     { "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" }, \

     { "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" }, \
     { "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" } \

 void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m);
 
 void ff_rtp_send_h264(AVFormatContext *s1, const uint8_t *buf1, int size);

 void ff_rtp_send_h261(AVFormatContext *s1, const uint8_t *buf1, int size);

 void ff_rtp_send_h263(AVFormatContext *s1, const uint8_t *buf1, int size);

 void ff_rtp_send_h263_rfc2190(AVFormatContext *s1, const uint8_t *buf1, int size,
                               const uint8_t *mb_info, int mb_info_size);

 void ff_rtp_send_hevc(AVFormatContext *s1, const uint8_t *buf1, int size);

 void ff_rtp_send_aac(AVFormatContext *s1, const uint8_t *buff, int size);

 void ff_rtp_send_latm(AVFormatContext *s1, const uint8_t *buff, int size);

 void ff_rtp_send_amr(AVFormatContext *s1, const uint8_t *buff, int size);

 void ff_rtp_send_mpegvideo(AVFormatContext *s1, const uint8_t *buf1, int size);

 void ff_rtp_send_xiph(AVFormatContext *s1, const uint8_t *buff, int size);

 void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buff, int size);

 void ff_rtp_send_jpeg(AVFormatContext *s1, const uint8_t *buff, int size);

 const uint8_t *ff_h263_find_resync_marker_reverse(const uint8_t *av_restrict start,
                                                   const uint8_t *av_restrict end);

 #endif /* AVFORMAT_RTPENC_H */