The only adjustments I made after I got it working the first time were adding some boundaries to keep audio in sync. Video frames render instantly (we just swap the image), but audio needs to be buffered and scheduled ahead of time to avoid gaps. Getting them to stay in sync required clamping the audio scheduling buffer so it can't drift too far ahead of real time:
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，更多细节参见新收录的资料
Where we use this
Владимир Седов (Редактор отдела «Силовые структуры»)
Exports have been the key driver of China's economy, lifting it in spite of poor domestic spending and a property slump.