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CPI_Player_Callbacks.c
资源名称：Visual C++视频音频开发实用工程案例精选.rar　[点击查看]
上传用户：tuheem
上传日期：2007-05-01
资源大小：21889k
文件大小：4k
源码类别：

多媒体编程

开发平台：

Visual C++

CPI_Player_Callbacks.c：源码内容
  1. #include "stdafx.h"
  2. #include "globals.h"
  3. #include "CPI_Player.h"
  4. #include "CPI_Playlist.h"
  5. #include "CPI_PlaylistItem.h"
  7. #define CP_SYNCCOOKIE_DESTROY 301
  9. void CPI_Player_cb_OnStreamInfo(CP_HPLAYER hPlayer, const CPs_FileInfo* pInfo)
  10. {
  11.     globals.main_long_track_duration = pInfo->m_iFileLength_Secs;
  13.     if(pInfo->m_iBitRate_Kbs)
  14.         _itoa(pInfo->m_iBitRate_Kbs, globals.main_text_bitrate, 10);
  15.     else
  16.         globals.main_text_bitrate[0] = '';
  18.     if(pInfo->m_iFreq_Hz)
  19.         _itoa(pInfo->m_iFreq_Hz / 1000, globals.main_text_frequency, 10);
  20.     else
  21.         globals.main_text_frequency[0] = '';
  23.     main_draw_bitrate(windows.wnd_main);
  24.     main_draw_frequency(windows.wnd_main);
  25. }
  26. //
  27. void CPI_Player_cb_OnStreamOffset_Secs(CP_HPLAYER hPlayer, const int iTrackElapsedSeconds)
  28. {
  29.     globals.main_int_track_total_seconds = iTrackElapsedSeconds;
  30.     main_draw_time(windows.wnd_main);
  31. }
  32. //
  33. void CPI_Player_cb_OnStreamOffset_Range(CP_HPLAYER hPlayer, const int iTrackElapsed_Range)
  34. {
  35.     globals.main_int_track_position = iTrackElapsed_Range;
  36.     if(globals.m_bStreaming == TRUE)
  37.         main_draw_vu_from_value(windows.wnd_main, PositionSlider, globals.m_iStreamingPortion);
  38.     else
  39.         main_draw_vu_from_value(windows.wnd_main, PositionSlider, globals.main_int_track_position);
  40. }
  41. //
  42. void CPI_Player_cb_OnPlayerState(CP_HPLAYER hPlayer, const CPe_PlayerState enPlayerState)
  43. {
  44.     switch(enPlayerState)
  45.     {
  46.     case cppsEndOfStream:
  47.         {
  48.             CP_HPLAYLISTITEM hCurrent = CPL_GetActiveItem(globals.m_hPlaylist);
  50.             if(options.repeat_playlist == FALSE
  51.                     && options.shuffle_play == FALSE
  52.                     && (hCurrent == NULL || CPLI_Next(hCurrent) == NULL) )
  53.             {
  54.                 CPI_Player__BlockMessagesUntilEndOfStream(hPlayer);
  55.                 if(options.auto_exit_after_playing == TRUE)
  56.                     CPI_Player__SendSyncCookie(hPlayer, CP_SYNCCOOKIE_DESTROY);
  57.             }
  58.             else
  59.             {
  60.                 if(options.seconds_delay_after_track > 0)
  61.                     SetTimer(windows.wnd_main, CPC_TIMERID_INTERTRACKDELAY, 2000 + (options.seconds_delay_after_track * 1000), NULL);
  62.                 else
  63.                     CPL_PlayItem(globals.m_hPlaylist, FALSE, pmNextItem);
  64.             }
  65.         }
  66.         break;
  68.     case cppsPlaying:
  69.     case cppsPaused:
  70.         globals.m_enPlayerState = enPlayerState;
  71.         main_draw_controls_all(windows.wnd_main);
  72.         break;
  74.     case cppsStopped:
  75.         globals.m_enPlayerState = enPlayerState;
  77.         memset(globals.main_text_bitrate, 0, sizeof(globals.main_text_bitrate));
  78.         memset(globals.main_text_frequency, 0, sizeof(globals.main_text_frequency));
  79.         main_draw_bitrate(windows.wnd_main);
  80.         main_draw_frequency(windows.wnd_main);
  82.         globals.main_int_track_total_seconds = 0;
  83.         main_draw_time(windows.wnd_main);
  85.         globals.main_int_track_position = 0;
  86.         main_draw_vu_from_value(windows.wnd_main, PositionSlider, globals.main_int_track_position);
  88.         main_draw_controls_all(windows.wnd_main);
  89.         break;
  91.     }
  92. }
  93. //
  94. void CPI_Player_cb_OnSyncCookie(CP_HPLAYER hPlayer, const int iCookie)
  95. {
  96.     if(iCookie == CP_SYNCCOOKIE_DESTROY)
  97.         DestroyWindow(windows.wnd_main);
  98. }
  99. //
  100. void CPI_Player_cb_OnVolumeChange(CP_HPLAYER hPlayer, const int iNewVolume)
  101. {
  102.     globals.m_iVolume = iNewVolume;
  103.     main_draw_vu_from_value(windows.wnd_main, VolumeSlider, iNewVolume);
  104. }
  105. //
  106. void CPI_Player_cb_OnStreamStateChange(CP_HPLAYER hPlayer, const BOOL bStreaming, const int iBufferUsagePercent)
  107. {
  108.     const int iRange = Skin.Object[PositionSlider].maxw ? Skin.Object[PositionSlider].h : Skin.Object[PositionSlider].w;
  110.     globals.m_bStreaming = bStreaming;
  111.     if(iRange)
  112.         globals.m_iStreamingPortion = (iBufferUsagePercent * iRange) / 100;
  113.     else
  114.         globals.m_iStreamingPortion = 0;
  115.     main_draw_vu_from_value(windows.wnd_main, PositionSlider, globals.m_iStreamingPortion);
  116. }
  117. //
  118. void CPI_Player_cb_OnEnumOutputDevice(CP_HPLAYER hPlayer, const char* pcDeviceName, const int iDeviceID)
  119. {
  120.     int iNewDeviceIDX;
  122.     iNewDeviceIDX = SendDlgItemMessage(windows.dlg_options, IDC_OUTPUT, CB_ADDSTRING, 0, (LPARAM)pcDeviceName);
  123.     SendDlgItemMessage(windows.dlg_options, IDC_OUTPUT, CB_SETITEMDATA, iNewDeviceIDX - 1, MAKELPARAM(iDeviceID,iDeviceID));
  125.     SendDlgItemMessage(windows.dlg_options, IDC_OUTPUT, CB_SETCURSEL, options.decoder_output_mode, 0);
  126. }