版本
Takes a channel mask and swap back channels with side channels if there is just one pair of surround channels. 在文件AkSpeakerConfig.h第402行定义。 参考 AK_SPEAKER_BACK_LEFT、AK_SPEAKER_BACK_RIGHT、AK_SPEAKER_SIDE_LEFT、AK_SPEAKER_SIDE_RIGHT及HasStrictlyOnePairOfSurroundChannels(). |