dvdcontrol.c

基于linux的DVD播放器程序

  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlUpperButtonSelect;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Selects the button below the current one.
 * @todo add mode return values
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDLowerButtonSelect(DVDNav_t *nav)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlLowerButtonSelect;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Activates the button currently selected.
 * @todo add mode return values
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDButtonActivate(DVDNav_t *nav)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlButtonActivate;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) { 
    return DVD_E_FailedToSend;
  }
 
  return DVD_E_Ok;
}


/** 
 * Selects the specified button.
 * @todo add mode return values
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param Button Specifies the button to select.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDButtonSelect(DVDNav_t *nav, int Button)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  ev.dvdctrl.cmd.type = DVDCtrlButtonSelect;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.button.nr = Button;
  
  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Selects and activates the specified button.
 * @todo add mode return values
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param Button Specifies the button to select and activate.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDButtonSelectAndActivate(DVDNav_t *nav, int Button)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  ev.dvdctrl.cmd.type = DVDCtrlButtonSelectAndActivate;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.button.nr = Button;
  
  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Selects the button at the specified position.
 * @todo add mode return values
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param x Specifies the x coordinate.
 * @param y Specifies the y coordinate.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDMouseSelect(DVDNav_t *nav, int x, int y)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlMouseSelect;
  ev.dvdctrl.cmd.mouse.x = x;
  ev.dvdctrl.cmd.mouse.y = y;
  
  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Selects and activates the button at the specified position.
 * @todo add mode return values
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param x Specifies the x coordinate.
 * @param y Specifies the y coordinate.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDMouseActivate(DVDNav_t *nav, int x, int y)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlMouseActivate;
  ev.dvdctrl.cmd.mouse.x = x;
  ev.dvdctrl.cmd.mouse.y = y;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }

  return DVD_E_Ok;
}


/** 
 * Jumps to the specified menu.
 * @todo add more return values
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param MenuId Specifies the menu to display.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDMenuCall(DVDNav_t *nav, DVDMenuID_t MenuId)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlMenuCall;
  ev.dvdctrl.cmd.menucall.menuid = MenuId;
  
  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Resumes playback.
 * @todo add more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDResume(DVDNav_t *nav)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlResume;
  
  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Go up one level
 * @todo better description.
 * @todo add more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDGoUp(DVDNav_t *nav)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlGoUp;
  
  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Play forward at specified speed.
 * @todo better description.
 * @todo add more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param Speed Specifies the speed of play.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDForwardScan(DVDNav_t *nav, double Speed)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlForwardScan;
  ev.dvdctrl.cmd.scan.speed = Speed;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Play backward at specified speed.
 * @todo better description.
 * @todo add more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param Speed Specifies the speed of play.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDBackwardScan(DVDNav_t *nav, double Speed)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlBackwardScan;
  ev.dvdctrl.cmd.scan.speed = Speed;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Jump to the beginning of the next program
 * @todo more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDNextPGSearch(DVDNav_t *nav)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlNextPGSearch;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Jump to the beginning of the previous program
 * @todo more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDPrevPGSearch(DVDNav_t *nav)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlPrevPGSearch;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Jump to the beginning of the current PG.
 * @todo more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDTopPGSearch(DVDNav_t *nav)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlTopPGSearch;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Jump to beginning of the specified ptt in the current title.
 * @todo more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param PTT Specifies the PTT
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDPTTSearch(DVDNav_t *nav, DVDPTT_t PTT)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlPTTSearch;
  ev.dvdctrl.cmd.pttsearch.ptt = PTT;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}


/** 
 * Jump to the beginning of the specified ptt in the specified title.
 * @todo more return values.
 *
 * @param nav Specifies the connection to the DVD navigator.
 * @param Title Specifies the Title.
 * @param PTT Specifies the PTT.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDPTTPlay(DVDNav_t *nav, DVDTitle_t Title, DVDPTT_t PTT)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlPTTPlay;
  ev.dvdctrl.cmd.pttplay.title = Title;
  ev.dvdctrl.cmd.pttplay.ptt = PTT;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) { 
    return DVD_E_FailedToSend;
  }
 
  return DVD_E_Ok;
}


/** 
 * @todo more return values.
 * @todo better description.
 *
 * @param nav Specifies the connection to the DVD navigator.
 *
 * @return If successful DVD_E_Ok is returned. Otherwise an error code
 * is returned.
 *
 * @retval DVD_E_Ok Success.
 * @retval DVD_E_FailedToSend Failed to send the request.
 */
DVDResult_t DVDTitlePlay(DVDNav_t *nav, DVDTitle_t Title)
{
  MsgEvent_t ev;
  ev.type = MsgEventQDVDCtrl;
  DVD_SETSERIAL(nav, ev.dvdctrl.cmd);
  ev.dvdctrl.cmd.type = DVDCtrlTitlePlay;
  ev.dvdctrl.cmd.titleplay.title = Title;

  if(MsgSendEvent(nav->msgq, nav->client, &ev, 0) == -1) {
    return DVD_E_FailedToSend;
  }
  
  return DVD_E_Ok;
}