libvlc - 如何让 libvlc_media_player_get_time() 返回更准确的结果？

Question

使用 libvlc，如何让 libvlc_media_player_get_time() 返回更准确的结果？对于 60fps 视频，它返回的值每秒最多只更新几次。有没有办法获得帧准确的时间？

Answer 1

这个问题说没有办法从 libvlc 获得更准确的结果。

但是您可以对其进行插值：

private long lastPlayTime = 0;
private long lastPlayTimeGlobal = 0;

 /**
 * Get current play time (interpolated)
 * @see https://github.com/caprica/vlcj/issues/74
 * @return
 */
public float getCurrentTime(){
    long currentTime = directMediaPlayer.getTime();

    if (lastPlayTime == currentTime && lastPlayTime != 0){
        currentTime += System.currentTimeMillis() - lastPlayTimeGlobal;
    } else {
        lastPlayTime = currentTime;
        lastPlayTimeGlobal = System.currentTimeMillis();
    }

    return currentTime * 0.001f;    //to float
}