mirror of
https://github.com/pvvx/RTL00_WEB.git
synced 2024-11-23 14:34:19 +00:00
337 lines
11 KiB
C
337 lines
11 KiB
C
#ifndef _RTSP_H_
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#define _RTSP_H_
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#include "dlist.h"
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#include "osdep_api.h"
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#include "avcodec.h"
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#define RTSP_DEBUG 0
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#if RTSP_DEBUG
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#define RTSP_PRINTF(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
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#define RTSP_ERROR(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
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#else
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#define RTSP_PRINTF(fmt, args...)
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#define RTSP_ERROR(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
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#endif
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/*******************************************************general***************************************************************************/
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struct stream_context
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{
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struct list_head payload_entry;
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_Mutex entry_lock;
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_Sema sema;
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void *protoCtx; // tranport layer protocol info.(eg.RTSP/HTTP)
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int isProcess;
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int allowStream;
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int pt; //payload type
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struct codec_info codec;
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void *priv; // pointer to private data
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};
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/************************************************************** start of rtsp *************************************************************/
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/*rtsp command list*/
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#define CMD_OPTIONS 1
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#define CMD_DESCRIBE 2
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#define CMD_SETUP 3
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#define CMD_TEARDOWN 4
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#define CMD_PLAY 5
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#define CMD_PAUSE 6
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/*rtsp cast mode list*/
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#define UNICAST_UDP_MODE 1
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#define UNICAST_TCP_MODE 2
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#define MULTICAST_MODE 3
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#define CRLF "\r\n"
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#define BOUNDARY "amebaimagetest"
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#define RTSP_RESPONSE_SIZE 512 //max size for request/response buffer
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#define SERVER_PORT_RANGE_MIN 55608
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#define SERVER_PORT_RANGE_MAX 55625
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#define PORT_RANGE_MIN 50020
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#define PORT_RANGE_MAX 50036
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#if (SERVER_PORT_RANGE_MIN >= SERVER_PORT_RANGE_MAX) || (PORT_RANGE_MIN >= PORT_RANGE_MAX)
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#error "port range invalid"
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#endif
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#if ((SERVER_PORT_RANGE_MIN%2) != 0) || ((PORT_RANGE_MIN%2) != 0)
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#error "minimal port value should be even"
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#endif
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#define DEF_RTSP_PORT 554
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#define DEF_HTTP_PORT 5008
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/************************************************************** end of rtsp *************************************************************/
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/************************************************************** start of rtp **************************************************************/
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#define DEF_RTP_PORT 27750
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#define RTP_BIG_ENDIAN 0
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#define RTP_HDR_SZ 12
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/*rtp payload type mapping and standard rtp payload type table*/
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#define RTP_PT_PCMU 0
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#define RTP_PT_GSM 3
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#define RTP_PT_G723 4
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#define RTP_PT_DVI4_R8000 5
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#define RTP_PT_DVI4_R16000 6
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#define RTP_PT_LPC 7
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#define RTP_PT_PCMA 8
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#define RTP_PT_G722 9
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#define RTP_PT_L16_C2 10
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#define RTP_PT_L16_C1 11
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#define RTP_PT_QCELP 12
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#define RTP_PT_CN 13
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#define RTP_PT_MPA 14
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#define RTP_PT_G728 15
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#define RTP_PT_DVI4_R11025 16
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#define RTP_PT_DVI4_R22050 17
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#define RTP_PT_G719 18
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#define RTP_PT_CELB 25
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#define RTP_PT_JPEG 26
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#define RTP_PT_NV 28
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#define RTP_PT_H261 31
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#define RTP_PT_MPV 32
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#define RTP_PT_MP2T 33
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#define RTP_PT_H263 34
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#define RTP_PT_RTCP_BASE 72
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#define RTP_PT_DYN_BASE 96
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#undef RTP_PT_UNKNOWN
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#define RTP_PT_UNKNOWN -1
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#include "section_config.h"
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SDRAM_DATA_SECTION
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static const struct {
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int pt; //payload type
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const char enc_name[6];
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int clock_rate;
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int audio_channels;
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} rtp_payload_types[] = {
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//{0, "PCMU", 8000, 1},
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//{3, "GSM", 8000, 1},
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//{4, "G723", 8000, 1},
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//{5, "DVI4", 8000, 1},
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//{6, "DVI4", 16000, 1},
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//{7, "LPC", 8000, 1},
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//{8, "PCMA", 8000, 1},
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//{9, "G722", 8000, 1},
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//{10, "L16", 44100, 2},
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//{11, "L16", 44100, 1},
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//{12, "QCELP", 8000, 1},
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//{13, "CN", 8000, 1},
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//{14, "MPA", -1, -1},
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//{15, "G728", 8000, 1},
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//{16, "DVI4", 11025, 1},
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//{17, "DVI4", 22050, 1},
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//{18, "G729", 8000, 1},
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//{25, "CelB", 90000, -1},
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{26, "JPEG", 90000, -1},
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//{28, "nv", 90000, -1},
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//{31, "H261", 90000, -1},
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//{32, "MPV", 90000, -1},
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//{33, "MP2T", 90000, -1},
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//{34, "H263", 90000, -1},
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{-1, "", -1, -1}
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};
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#define RTP_STD_PT_SIZE /*25*/ 2 //length of rtp_payload_types
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/************************************************************** end of rtp **************************************************************/
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/************************************************************** start of rtcp *************************************************************/
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#define RTP_SEQ_MOD (1<<16)
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#define RTP_MAX_SDES 255 /* maximum text length for SDES */
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typedef enum {
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RTCP_SR = 200,
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RTCP_RR = 201,
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RTCP_SDES = 202,
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RTCP_BYE = 203,
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RTCP_APP = 204
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} rtcp_type_t;
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typedef enum {
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RTCP_SDES_END = 0,
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RTCP_SDES_CNAME = 1,
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RTCP_SDES_NAME = 2,
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RTCP_SDES_EMAIL = 3,
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RTCP_SDES_PHONE = 4,
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RTCP_SDES_LOC = 5,
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RTCP_SDES_TOOL = 6,
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RTCP_SDES_NOTE = 7,
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RTCP_SDES_PRIV = 8
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} rtcp_sdes_type_t;
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/************************************************************** end of rtcp *************************************************************/
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/************************************************************** start of rtsp *************************************************************/
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typedef enum _rtsp_state rtsp_state;
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enum _rtsp_state {
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RTSP_INIT = 0,
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RTSP_READY = 1,
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RTSP_PLAYING = 2,
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};
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struct rtsp_session
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{
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int id;
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int version;
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int start_time;
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int end_time;
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unsigned char *user;
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unsigned char *name;
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};
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struct rtsp_transport
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{
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int isRtp; //transport protocol
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int isTcp; //lower transport protocol
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int castMode; //unicast UDP(1) or unicast TCP(2) or multicast(3)
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int port_min;
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int port_max;
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int clientport_min;
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int clientport_max;
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int serverport_min;
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int serverport_max;
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int ttl; //multicast time to live
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//to be added if necessary
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};
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/*sturcture to hold connect info*/
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struct connect_context
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{
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int socket_id;
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u16 port;
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unsigned char *server_ip;
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unsigned char *remote_ip;
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};
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struct rtsp_context
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{
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rtsp_state state; //state for rtp streaming
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int rtsp_cmd; //store request method type
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int Cseq;
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struct rtsp_transport transport;
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struct rtsp_session session;
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u8 *response; //enough to hold response
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int content_len;
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struct connect_context connect_ctx; //contain rtsp server info.
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void *stream_ctx; //stream context it process
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_Sema start_rtp_sema; //sema to start rtp processing
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int is_rtp_start;
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//to be added if necessary
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};
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/************************************************************** end of rtsp *************************************************************/
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/************************************************************** start of rtp **************************************************************/
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/*
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* RTP data header from RFC1889
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*/
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/*
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*
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*
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* The RTP header has the following format:
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*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* |V=2|P|X| CC |M| PT | sequence number |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | timestamp |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | synchronization source (SSRC) identifier |
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* +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
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* | contributing source (CSRC) identifiers |
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* | .... |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* RTP data header
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*/
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typedef struct {
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#if RTP_BIG_ENDIAN
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unsigned int version:2; /* protocol version */
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unsigned int p:1; /* padding flag */
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unsigned int x:1; /* header extension flag */
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unsigned int cc:4; /* CSRC count */
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unsigned int m:1; /* marker bit */
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unsigned int pt:7; /* payload type */
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#else /*RTP_LITTLE_ENDIAN*/
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unsigned int cc:4; /* CSRC count */
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unsigned int x:1; /* header extension flag */
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unsigned int p:1; /* padding flag */
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unsigned int version:2; /* protocol version */
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unsigned int pt:7; /* payload type */
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unsigned int m:1; /* marker bit */
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#endif
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u16 seq; /* sequence number */
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u32 ts; /* timestamp */
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u32 ssrc; /* synchronization source */
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// u32 csrc[1]; /* optional CSRC list, skip because cc is set to 0 here*/
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} rtp_hdr_t;
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enum rtp_object_state
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{
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RTP_OBJECT_IDLE = 1,
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RTP_OBJECT_READY,
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RTP_OBJECT_INUSE,
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RTP_OBJECT_USED,
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};
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struct rtp_object
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{
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struct list_head rtp_list;
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_Mutex mutex;
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rtp_hdr_t rtphdr;
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u32 *extra; //pointer to type specific structure
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int index;
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unsigned char *data;
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int len;
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enum rtp_object_state state; //reserved for future use
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struct connect_context connect_ctx;
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};
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/************************************************************** end of rtp **************************************************************/
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/***************************************************************general******************************************************************/
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void stream_context_init(struct stream_context *stream_ctx);
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void stream_context_free(struct stream_context *stream_ctx);
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/************************************************************** start of rtsp *************************************************************/
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int rtsp_atoi(char * s);
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int rtsp_context_init(struct rtsp_context *rtsp_ctx);
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void rtsp_readheader(u8 *request_header);
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u8 * rtsp_parsefield(u8 *buffer, char *field); //parse specific field line and return field data
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u8 * rtsp_readline(struct rtsp_context *rtsp_ctx, u8 *ptr); //read line starting from ptr and store corresponding parameter in rtsp_ctx
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void rtsp_getparam(struct rtsp_context *rtsp_ctx, u8 *rtsp_header);
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void parse_rtsp_type(struct rtsp_context *rtsp_ctx, u8 *rtsp_header);
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int rtp_tick_inc_to_fps(int tick_inc, int clock_rate);
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int rtp_fps_to_tick_inc(int framerate, int clock_rate);
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void gen_session_id(int *session_id);
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void rtsp_formSdp(struct rtsp_context *rtsp_ctx, u8 *sdp_buffer, int size);
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void rtsp_cmd_options(struct rtsp_context *rtsp_ctx);
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void rtsp_cmd_describe(struct rtsp_context *rtsp_ctx);
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void rtsp_cmd_setup(struct rtsp_context *rtsp_ctx);
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void rtsp_cmd_play(struct rtsp_context *rtsp_ctx);
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void rtsp_cmd_pause(struct rtsp_context *rtsp_ctx);
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void rtsp_cmd_teardown(struct rtsp_context *rtsp_ctx);
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void rtsp_cmd_error(struct rtsp_context *rtsp_ctx);
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void rtsp_init(void *param);
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/************************************************************** end of rtsp *************************************************************/
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/************************************************************** start of rtp **************************************************************/
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void fillRtpHeader(rtp_hdr_t *rtphdr, int version, int padding, int extension, int cc, int marker, int pt, u16 seq, u32 ts, u32 ssrc);
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/************************************************************** end of rtp **************************************************************/
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#endif
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