ffmpeg - PHP uses the popen method to implement asynchronous operations.

Use the popen method to perform a video transcoding operation.
In order for transcoding to be executed asynchronously,
How can we know that this sentence has been executed? That’s how you know the transcoding is finished.

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Use the popen method to perform a video transcoding operation.
In order for transcoding to be executed asynchronously,
How can we know that this sentence has been executed? That’s how you know the transcoding is finished.

Record it before execution and change it after execution