aplay: Print '=== PAUSE ===' only if it is supported #271
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Instead of printing the '=== PAUSE ===' unconditionally before calling do_pause(), move it to the function and only print it if the stream can be paused.
If the stream cannot be paused that the '=== PAUSE ===' will be replaced by
PAUSE command ignored (no hw support)
immediately, which is not observable by users but automation scripts will catch the '=== PAUSE ===' and might think that the stream is indeed got paused.Move the print into do_pause() function after the snd_pcm_pause() have returned without error to make sure it is only printed if the stream is paused and we are waiting for the pause release from user to proceed.