More Codecs and Containers

[MineCake147E]

Background and Motivation

In the Shamisen project, we are trying to make it more practical by adding our own features that the existing libraries have.
One of the existing libraries, CSCore, supports many more codecs than the current Shamisen, so it would be good if Shamisen supports more codecs.

Rough Roadmap

Container Format

Container	Contents	Current	<v1.0	v1.0	Future
Ogg	FLAC, Opus, Vorbis
Matroska	Various Formats

Contained Audio

Codec	Container	Current	<v1.0	v1.0	Future
FLAC	Native FLAC, Ogg, Matroska	D(Native Only)	DE(All)
Opus	Ogg,Matroska		D	E
Vorbis	Ogg		D(libvorbis)	E(libvorbis)

Tasks

• FLAC Codec
  • Decoder
    • Managed one => Implement FLAC Decoder #116
  • Encoder
    • Managed one
• Opus Codec
  • Decoder
    • Managed one
  • Encoder
    • Managed one
• Vorbis Codec
  • Decoder
    • Through libvorbis
  • Encoder
    • Through libvorbis