player_session.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:7k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is MPEG4IP.
- *
- * The Initial Developer of the Original Code is Cisco Systems Inc.
- * Portions created by Cisco Systems Inc. are
- * Copyright (C) Cisco Systems Inc. 2000, 2001. All Rights Reserved.
- *
- * Contributor(s):
- * Bill May wmay@cisco.com
- */
- /*
- * player_session.h - provides definitions for a CPlayerSession.
- * CPlayerSession is the base class that provides a combination audio/video
- * stream/file playback.
- * This class should be the main interface between any outside functionality
- * and the player window.
- */
- #ifndef __PLAYER_SESSION_H__
- #define __PLAYER_SESSION_H__
- #include <rtsp/rtsp_client.h>
- #include <sdp/sdp.h>
- #include "our_msg_queue.h"
- #include "ip_port.h"
- typedef enum {
- SESSION_PAUSED,
- SESSION_BUFFERING,
- SESSION_PLAYING,
- SESSION_DONE
- } session_state_t;
- class CPlayerMedia;
- class CAudioSync;
- class CVideoSync;
- typedef void (*media_close_callback_f)(void *);
- class CPlayerSession {
- public:
- /*
- * API routine - create player session.
- */
- CPlayerSession(CMsgQueue *master_queue,
- SDL_sem *master_sem,
- const char *name);
- /*
- * API routine - destroy session - free all sub-structures, cleans
- * up rtsp, etc
- */
- ~CPlayerSession();
- /*
- * API routine - create a rtsp session with the url. After that, you
- * need to associate media
- */
- int create_streaming_broadcast(session_desc_t *sdp,
- char *ermsg,
- uint32_t errlen);
- int create_streaming_ondemand(const char *url,
- char *errmsg,
- uint32_t errlen,
- int use_rtp_tcp);
- /*
- * API routine - play at time. If start_from_begin is FALSE, start_time
- * and we're paused, it will continue from where it left off.
- */
- int play_all_media(int start_from_begin = FALSE, double start_time = 0.0);
- /*
- * API routine - pause
- */
- int pause_all_media(void);
- /*
- * API routine for media set up - associate a created
- * media with the session.
- */
- void add_media(CPlayerMedia *m);
- /*
- * API routine - returns sdp info for streamed session
- */
- session_desc_t *get_sdp_info (void) { return m_sdp_info;} ;
- rtsp_client_t *get_rtsp_client (void) { return m_rtsp_client; };
- /*
- * API routine - after setting up media, need to set up sync thread
- */
- void set_up_sync_thread(void);
- CVideoSync *set_up_video_sync(void);
- CAudioSync *set_up_audio_sync(void);
- /*
- * API routine - get the current time
- */
- uint64_t get_playing_time (void) {
- if (m_streaming && session_is_seekable() == 0) {
- return (m_current_time - m_first_time_played);
- }
- return (m_current_time);
- };
- /*
- * API routine - get max play time
- */
- double get_max_time (void);
- /*
- * Other API routines
- */
- int session_has_audio(void);
- int session_has_video(void);
- void set_audio_volume(int volume);
- int get_audio_volume(void) { return m_audio_volume; };
- void set_screen_location(int x, int y);
- void set_screen_size(int scaletimes2, int fullscreen = 0);
- void session_set_seekable (int seekable) {
- m_seekable = seekable;
- };
- int session_is_seekable (void) {
- return (m_seekable);
- };
- session_state_t get_session_state(void) {
- return (m_session_state);
- }
- void set_media_close_callback (media_close_callback_f mccf,
- void *mccd) {
- m_media_close_callback = mccf;
- m_media_close_callback_data = mccd;
- }
- int session_is_network (int &on_demand, int &rtp_over_rtsp) {
- if (m_streaming == 0) {
- return 0;
- }
- if (m_seekable) {
- on_demand = 1;
- rtp_over_rtsp = m_rtp_over_rtsp;
- } else {
- on_demand = 0;
- rtp_over_rtsp = 0;
- }
- return 1;
- }
- /*
- * Non-API routines - used for c interfaces, for sync task APIs.
- */
- void wake_sync_thread (void) {
- SDL_SemPost(m_sync_sem);
- }
- int send_sync_thread_a_message(uint32_t msgval,
- unsigned char *msg = NULL,
- uint32_t msg_len = 0)
- {
- return (m_sync_thread_msg_queue.send_message(msgval, msg, msg_len, m_sync_sem));
- };
- int sync_thread(int state);
- uint64_t get_current_time(void);
- void audio_is_ready (uint64_t latency, uint64_t time);
- void adjust_start_time(int64_t delta);
- int session_control_is_aggregate (void) {
- return m_session_control_is_aggregate;
- };
- void set_session_control (int is_aggregate) {
- m_session_control_is_aggregate = is_aggregate;
- }
- CPlayerMedia *rtsp_url_to_media (const char *url);
- int set_session_desc (int line, const char *desc);
- const char *get_session_desc(int line);
- void streaming_media_set_up(void) { m_streaming_media_set_up = 1; };
- CIpPort **get_unused_ip_port_ptr(void) { return &m_unused_ports; };
- private:
- void process_sdl_events(void);
- int process_msg_queue(int state);
- int sync_thread_init(void);
- int sync_thread_wait_sync(void);
- int sync_thread_wait_audio(void);
- int sync_thread_playing(void);
- int sync_thread_paused(void);
- int sync_thread_done(void);
- const char *m_session_name;
- const char *m_content_base;
- int m_paused;
- int m_streaming;
- uint64_t m_current_time; // current time playing
- uint64_t m_start;
- uint64_t m_latency;
- int m_clock_wrapped;
- uint64_t m_play_start_time;
- session_desc_t *m_sdp_info;
- rtsp_client_t *m_rtsp_client;
- CPlayerMedia *m_my_media;
- CAudioSync *m_audio_sync;
- CVideoSync *m_video_sync;
- SDL_Thread *m_sync_thread;
- SDL_sem *m_sync_sem;
- CMsgQueue *m_master_msg_queue;
- SDL_sem *m_master_msg_queue_sem;
- CMsgQueue m_sync_thread_msg_queue;
- range_desc_t *m_range;
- int m_session_control_is_aggregate;
- int m_waiting_for_audio;
- int m_audio_volume;
- int m_screen_scale;
- int m_fullscreen;
- int m_seekable;
- volatile int m_sync_pause_done;
- session_state_t m_session_state;
- int m_screen_pos_x;
- int m_screen_pos_y;
- int m_hardware_error;
- #define SESSION_DESC_COUNT 4
- const char *m_session_desc[SESSION_DESC_COUNT];
- media_close_callback_f m_media_close_callback;
- void *m_media_close_callback_data;
- int m_streaming_media_set_up;
- CIpPort *m_unused_ports;
- int m_rtp_over_rtsp;
- uint64_t m_first_time_played;
- };
- int c_sync_thread(void *data);
- #endif