GitLab

Summary:
This commit is kind of clean up and preparation for future
development.

We plan to pass around more complicated objects among
StreamReader and StreamWriter, and TorchBind is not expressive enough
for defining intermediate object, so we use PyBind11 for binding
StreamWriter.

Pull Request resolved: https://github.com/pytorch/audio/pull/3091

Reviewed By: xiaohui-zhang

Differential Revision: D43515714

Pulled By: mthrok

fbshipit-source-id: 9097bb104bbf8c1536a5fab6f87447c08b10a7f2

Summary:
Adding C++ documentation. (C++ APIs are categorized as prototype, though it's used by Python beta APIs.)

https://output.circle-artifacts.com/output/job/69654229-a99e-4b15-9ce0-7bc6bcf01101/artifacts/0/docs/libtorchaudio.html

<img width="1202" alt="Screenshot 2023-01-31 at 11 48 47 AM" src="https://user-images.githubusercontent.com/855818/215828167-d23032f8-9e40-4413-b5b1-5cbd12d705e9.png">

Pull Request resolved: https://github.com/pytorch/audio/pull/2994

Reviewed By: hwangjeff

Differential Revision: D42876621

Pulled By: mthrok

fbshipit-source-id: d8b8d610b87ec766501baa88b7506368a9905a6a