Synchronizing the Start of Playback

Samples Directory

/CRIWARE/SDK/pc/samples/criatomex/pause_playback

Sample Description

If you want to synchronize starting timing of multiple streaming playbacks, use the criAtomExPlayer_Prepare function.
Using the criAtomExPlayer_Prepare function, you can prepare playback so that playback can be started immediately.

You can determine whether the playback is ready or not by checking if the status of the playback ID is CRIATOMEXPLAYBACK_STATUS_PLAYING.
(When playback is not ready, status is CRIATOMEXPLAYBACK_STATUS_PREP.)
Playback ID is received as a return value of the criAtomExPlayer_Prepare function, which should be stored in application.

When the playback is ready, in order to start playback, use the criAtomExPlayback_Pause function to resume playback for the playback ID.

CriAtomExPlayeBackId playback_id; /* Playback ID */
CriAtomExPlayerHn player;
 
/* Prepare playback */
criAtomExPlayer_SetCueId(player, acb_hn, CRI_ATOMCUESHEET_THUNDER1);
playback_id = criAtomExPlayer_Prepare(player);
for(;;) {
    CriAtomExPlaybackStatus playback_status;
    sleep(1);
    criAtomEx_ExecuteMain();
    playback_status = criAtomExPlayback_GetStatus(playback_id);
    if (playback_status == CRIATOMEXPLAYBACK_STATUS_PLAYING) {
        /* Playback is ready */
        break;
    }
}
 
/* Start playback (resume playback ID) */
criAtomExPlayback_Pause(playback_id, CRI_FALSE);

When you want to synchronize playback start timing, use one player and prepare playback for multiple Voices, then resume the player to start playback together.
In this case, you can determine whether playback is ready or not by checking the status of CriAtomExPlayerHn.

CriAtomExPlayerHn player;
 
/* Prepare playback */
criAtomExPlayer_SetCueId(player, acb_hn, CRI_ATOMCUESHEET_THUNDER1);
criAtomExPlayer_Prepare(player);
criAtomExPlayer_SetCueId(player, acb_hn, CRI_ATOMCUESHEET_THUNDER2);
criAtomExPlayer_Prepare(player);
criAtomExPlayer_SetCueId(player, acb_hn, CRI_ATOMCUESHEET_THUNDER3);
criAtomExPlayer_Prepare(player);
 
for(;;) {
    CriAtomExPlayerStatus player_status;
    sleep(1);
    criAtomEx_ExecuteMain();
    player_status = criAtomExPlayer_GetStatus(player);
    if (player_status == CRIATOMEXPLAYER_STATUS_PLAYING) {
        /* Playback is ready */
        break;
    }
}
 
/* Start playback together (synchronize start timing) */
criAtomExPlayer_Pause(player, CRI_FALSE);