tencent cloud

// 纯音频模式下，主实例（人声实例）需要开启补黑帧以携带 SEI 消息
mTRTCCloud.callExperimentalAPI("{\\"api\\":\\"enableBlackStream\\",\\"params\\": {\\"enable\\":true}}");

mAudioEffectManager.setMusicObserver(mCurPlayMusicId, new TXAudioEffectManager.TXMusicPlayObserver() {
    @Override
    public void onPlayProgress(int id, long curPtsMS, long durationMS) {
        JSONObject jsonObject = new JSONObject();
        // 当前 ntp 时间
        long ntpTime = TXLiveBase.getNetworkTimestamp();
        jsonObject.put("bgmProgressTime", curTime);
        jsonObject.put("ntpTime", ntpTime);
        jsonObject.put("musicId", musicId);
        jsonObject.put("duration", duration);
        jsonObject.toString().getBytes();
        mTRTCCloud.sendSEIMsg(jsonObject.toString().getBytes(), 1);
    }
}


// 本地歌词同步
mAudioEffectManager.setMusicObserver(mCurPlayMusicId, new TXAudioEffectManager.TXMusicPlayObserver() {
    @Override
    public void onPlayProgress(int id, long curPtsMS, long durationMS) {
        ...
        // TODO 更新歌词控件逻辑：
        // 根据最新进度和本地歌词进度误差，判断是否需要 seek 歌词控件
        ...
    }
}

// 远端歌词同步
@Override
public void onRecvSEIMsg(String userId, byte[] data) {
    String result = new String(data);
    JSONObject jsonObject = new JSONObject(result);
    long bgmProgressTime = jsonObject.getLong("bgmProgressTime");
    long ntpTime = jsonObject.getLong("ntpTime");
    String musicId = jsonObject.getString("musicId");
    long duration = jsonObject.getLong("duration");
    ...
    // TODO 更新歌词控件逻辑：
    // 根据接收到的最新进度和本地歌词进度误差，判断是否需要 seek 歌词控件
    ...
}