Add logging to StreamReader/Writer (#2878)

Summary: Pull Request resolved: https://github.com/pytorch/audio/pull/2878

Reviewed By: carolineechen

Differential Revision: D41587081

Pulled By: mthrok

fbshipit-source-id: da7f3647083a3566ce94070ce2bd30bf99e1db76

torchaudio/io/_stream_reader.py

@@ -355,6 +355,7 @@ class StreamReader:
         option: Optional[Dict[str, str]] = None,
         buffer_size: int = 4096,
     ):
+        torch._C._log_api_usage_once("torchaudio.io.StreamReader")
         if isinstance(src, str):
             self._be = torch.classes.torchaudio.ffmpeg_StreamReader(src, format, option)
         elif isinstance(src, torch.Tensor):

torchaudio/io/_stream_writer.py

@@ -104,6 +104,7 @@ class StreamWriter:
         format: Optional[str] = None,
         buffer_size: int = 4096,
     ):
+        torch._C._log_api_usage_once("torchaudio.io.StreamWriter")
         if isinstance(dst, str):
             self._s = torch.classes.torchaudio.ffmpeg_StreamWriter(dst, format)
         elif hasattr(dst, "write"):