超级强大的 SDK Android

Question

您好，我想用超级强大的 sdk 创建一个播放器，但我无法退出循环。当歌曲结束时，他又开始演奏，因为它被删除了？

С++ void 用于开始和暂停播放；

void SuperpoweredExample::onPlayPause(bool play) {
pthread_mutex_lock(&mutex);
if (!play) {
    playerA->pause();
    playerB->pause();
} else {
    bool masterIsA = (crossValue <= 0.5f);
    playerA->play(!masterIsA);
    playerB->play(masterIsA);
};
pthread_mutex_unlock(&mutex);
}

JAVA 中的这个空白

public void SuperpoweredExample_PlayPause(View button) {  // Play/pause.
    playing = !playing;
    onPlayPause(playing);
    Button b = (Button) findViewById(R.id.playPause);
    b.setText(playing ? "Pause" : "Play");
}

C++ 中播放器初始化和播放选项

SuperpoweredAdvancedAudioPlayer *playerA = *((SuperpoweredAdvancedAudioPlayer **)clientData);
    playerA->setBpm(126.0f);
    playerA->setFirstBeatMs(1);
    playerA->setPosition(playerA->firstBeatMs, false, false);
    playerA->exitLoop(); // not work
    playerA->looping = false; // not work
    playerA->togglePlayback();

    playerA = new SuperpoweredAdvancedAudioPlayer(&playerA , playerEventCallbackA, samplerate, 0);
    playerA->open(path, params[0], params[1]);

Answer 1

在您的方法 playerEventCallbackA 中处理播放状态来自

playerA = new SuperpoweredAdvancedAudioPlayer(&playerA , playerEventCallbackA, samplerate, 0);

它是主要玩家事件的回调。 如果您查看 SuperpoweredAdvancedAudioPlayer.h 类，您会发现

typedef enum SuperpoweredAdvancedAudioPlayerEvent {
    SuperpoweredAdvancedAudioPlayerEvent_LoadSuccess,
    SuperpoweredAdvancedAudioPlayerEvent_LoadError,
    SuperpoweredAdvancedAudioPlayerEvent_EOF,
    SuperpoweredAdvancedAudioPlayerEvent_JogParameter,
    SuperpoweredAdvancedAudioPlayerEvent_DurationChanged,
} SuperpoweredAdvancedAudioPlayerEvent;

当您收到 SuperpoweredAdvancedAudioPlayerEvent_EOF 事件时，您可以暂停或做任何您想做的播放。

例如

    static void playerEventCallbackA(void *clientData, SuperpoweredAdvancedAudioPlayerEvent event, void *value) {
        SuperpoweredAdvancedAudioPlayer *playerA = *((SuperpoweredAdvancedAudioPlayer **)clientData);
        if (event == SuperpoweredAdvancedAudioPlayerEvent_LoadSuccess) {
            // handle player prepared
        } else if (event == SuperpoweredAdvancedAudioPlayerEvent_LoadError) {
            // handle error with player
        } else if (event == SuperpoweredAdvancedAudioPlayerEvent_EOF && !loopingA) {
            playerA->pause();
        }
    }

希望对你有帮助。