#ifndef _rtp_profile_h_
#define _rtp_profile_h_

#ifdef __cplusplus
extern "C" {
#endif

enum {
    RTP_TYPE_UNKNOWN = 0,
    RTP_TYPE_AUDIO,
    RTP_TYPE_VIDEO,
    RTP_TYPE_SYSTEM,
};

enum {
    RTP_PAYLOAD_DYNAMIC = 96,
};

/// https://en.wikipedia.org/wiki/RTP_audio_video_profile
/// RFC3551 6. Payload Type Definitions (p28)
struct rtp_profile_t {
    int payload;   // 0~127, 96-127 dynamic, 35-71 unassigned, 72-76 reserved, 77-95 unassigned
    int avtype;    // 0-unknown, 1-audio, 2-video, 3-system(audio/video)
    int channels;  // number of channels
    int frequency; // clock rate
    char name[32]; // case insensitive
};

/***
{
    // audio
    { 0, "PCMU",	8000,	1 }, // G711 mu-law
    { 1, "",		0,		0 }, // reserved
    { 2, "",		0,		0 }, // reserved
    { 3, "GSM",		8000,	1 },
    { 4, "G723",	8000,	1 },
    { 5, "DVI4",	8000,	1 },
    { 6, "DVI4",	16000,	1 },
    { 7, "LPC",		8000,	1 },
    { 8, "PCMA",	8000,	1 }, // G711 A-law
    { 9, "G722",	8000,	1 },
    {10, "L16",		44100,	2 },
    {11, "L16",		44100,	1 },
    {12, "QCELP",	8000,	1 },
    {13, "CN",		8000,	1 },
    {14, "MPA",		90000,	0 }, // MPEG-1/MPEG-2 audio
    {15, "G728",	8000,	1 },
    {16, "DVI4",	11025,	1 },
    {17, "DVI4",	22050,	1 },
    {18, "G729",	8000,	1 },
    {19, "",		0,		0 }, // reserved
    {20, "",		0,		0 }, // unassigned
    {21, "",		0,		0 }, // unassigned
    {22, "",		0,		0 }, // unassigned
    {23, "",		0,		0 }, // unassigned
    //{ 0, "G726-40", 8000,	1 },
    //{ 0, "G726-32", 8000,	1 },
    //{ 0, "G726-24", 8000,	1 },
    //{ 0, "G726-16", 8000,	1 },
    //{ 0, "G729-D",  8000,	1 },
    //{ 0, "G729-E",  8000,	1 },
    //{ 0, "GSM-EFR", 8000,	1 },
    //{ 0, "L8",      var,	1 },

    // video
    {24, "",		0,		0 }, // unassigned
    {25, "CelB",	90000,	0 }, // SUN CELL-B
    {26, "JPEG",	90000,	0 },
    {27, "",		0,		0 }, // unassigned
    {28, "nv",		90000,	0 },
    {29, "",		0,		0 }, // unassigned
    {30, "",		0,		0 }, // unassigned
    {31, "H261",	90000,	0 },
    {32, "MPV",		90000,	0 }, // MPEG-1/MPEG-2 video
    {33, "MP2T",	90000,	0 }, // MPEG-2 TS
    {34, "H263",	90000,	0 },
    //{ 0, "H263-1998",90000,	0 },

    // 35-71 unassigned
    // 72-76 reserved
    // 77-95 unassigned
    // 96-127 dynamic
    {96, "MPG4",	90000,  0 }, // RFC3640 RTP Payload Format for Transport of MPEG-4 Elementary Streams
    {97, "MP2P",	90000,  0 }, // RFC3555 4.2.11 Registration of MIME media type video/MP2P
    {98, "H264",	90000,	0 }, // RFC6184 RTP Payload Format for H.264 Video
};
***/

enum {
    RTP_PAYLOAD_PCMU = 0,   // ITU-T G.711 PCM µ-Law audio 64 kbit/s (rfc3551)
    RTP_PAYLOAD_G723 = 4,   // ITU-T G.723.1 8000/1, 30ms (rfc3551)
    RTP_PAYLOAD_PCMA = 8,   // ITU-T G.711 PCM A-Law audio 64 kbit/s (rfc3551)
    RTP_PAYLOAD_G722 = 9,   // ITU-T G.722 audio 64 kbit/s (rfc3551)
    RTP_PAYLOAD_CN = 13,    // Real-time Transport Protocol (RTP) Payload for Comfort Noise (CN) (rfc3389)
    RTP_PAYLOAD_MP3 = 14,   // MPEG-1/MPEG-2 audio (rfc2250)
    RTP_PAYLOAD_G729 = 18,  // ITU-T G.729 and G.729a audio 8 kbit/s (rfc3551)
    RTP_PAYLOAD_SVACA = 20, // GB28181-2016

    RTP_PAYLOAD_JPEG = 26, // JPEG video (rfc2435)
    RTP_PAYLOAD_MPV = 32,  // MPEG-1 and MPEG-2 video (rfc2250)
    RTP_PAYLOAD_MP2T = 33, // MPEG-2 transport stream (rfc2250)
    RTP_PAYLOAD_H263 = 34, // H.263 video, first version (1996) (rfc2190)
    RTP_PAYLOAD_AV1X = 35, // https://bugs.chromium.org/p/webrtc/issues/detail?id=11042

    RTP_PAYLOAD_MP2P = 96,   // MPEG-2 Program Streams video (rfc2250)
    RTP_PAYLOAD_MP4V = 97,   // MP4V-ES MPEG-4 Visual (rfc6416)
    RTP_PAYLOAD_H264 = 98,   // H.264 video (MPEG-4 Part 10) (rfc6184)
    RTP_PAYLOAD_SVAC = 99,   // GB28181-2016
    RTP_PAYLOAD_H265 = 100,  // H.265 video (MPEG-H Part 2) (rfc7798)
    RTP_PAYLOAD_MP4A = 101,  // MPEG4-generic audio/video MPEG-4 Elementary Streams (rfc3640)
    RTP_PAYLOAD_LATM = 102,  // MP4A-LATM MPEG-4 Audio (rfc6416)
    RTP_PAYLOAD_OPUS = 103,  // RTP Payload Format for the Opus Speech and Audio Codec (rfc7587)
    RTP_PAYLOAD_MP4ES = 104, // MPEG4-generic audio/video MPEG-4 Elementary Streams (rfc3640)
    RTP_PAYLOAD_VP8 = 105,   // RTP Payload Format for VP8 Video (rfc7741)
    RTP_PAYLOAD_VP9 = 106,   // RTP Payload Format for VP9 Video draft-ietf-payload-vp9-03
    RTP_PAYLOAD_AV1 = 107,   // https://aomediacodec.github.io/av1-rtp-spec/
    RTP_PAYLOAD_H266 = 108,  // https://www.ietf.org/archive/id/draft-ietf-avtcore-rtp-vvc-18.html

    RTP_PAYLOAD_RTX = 110,      // RTP Retransmission Payload Format (rfc4588)
    RTP_PAYLOAD_RED = 111,      // RTP Payload for Redundant Audio Data (rfc2198)
    RTP_PAYLOAD_FEC_ULP = 112,  // RTP Payload Format for Generic Forward Error Correction (rfc5109)
    RTP_PAYLOAD_FEC_FLEX = 113, // RTP Payload Format for Flexible Forward Error Correction (rfc8267)
    RTP_PAYLOAD_FEC_RS = 114,   // RTP Payload Format for Reed-Solomon(non-standard/private)
};

///@param[in] payload RTP payload type(0 ~ 127)
///@return NULL if not exist
const struct rtp_profile_t *rtp_profile_find(int payload);

#ifdef __cplusplus
}
#endif
#endif /* _rtp_profile_h_ */