[opus] opusfile 0.4 release

[Ralph Giles]

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I'm pleased to announce the availability of opusfile v0.4.

The opusfile and opusurl libraries provide a high-level API for
decoding and seeking within .opus files on disk or over http(s).

* https://ftp.mozilla.org/pub/mozilla.org/opus/opusfile-0.4.tar.gz
* https://ftp.mozilla.org/pub/mozilla.org/opus/opusfile-0.4.zip

* http://downloads.xiph.org/releases/opus/opusfile-0.4.tar.gz
* http://downloads.xiph.org/releases/opus/opusfile-0.4.zip

*
https://ftp.mozilla.org/pub/mozilla.org/opus/win32/opusfile-0.4-win32.zip

Changes since v0.3:

- - New API to parse album art tags.
- - Visual Studio project file fixes.
- - Include Visual Studio projects in source package.
- - Minor unicode fixes.

Changes since v0.2:

- - Fix a buffer overflow downmixing multichannel files.
- - UTF-8 filename support on Windows.
- - HTTP(S) url support on Windows.
- - Support Windows system certificate store for HTTPS.
- - New project files for MS Visual Studio.
- - New gain control API with op_set_gain_offset() and op_get_track_gain().
- - Documentation and build improvements.
- - HTTP(S) support split into a separate opusurl library.
- - Implement soft-clip for paths where libopus doesn't.
- - opusfile_example now outputs WAV.
- - Fix http basic auth.
- - Fix 255 packet-per-page assert.

We recommend upgrading for all current users. If you're not a current
user, please give it a try!

Checksums:

4248927f2c4e316ea5b84fb02bd100bfec8fa4624a6910d77f0af7f0c6cb8baa
opusfile-0.3.tar.gz
9836ea11706c44f36de92c4c9b1248e03a4c521e7fb2cff18a0cb4f8b0e79140
opusfile-0.4.tar.gz
f187906b1b35f7f0d7de6a759b4aab512a9279d23adb35d8009e7e33bd6a922a
opusfile-0.4.zip
ae23da5963295c6aa13c97becf50ae013e2317706f0e2a9472f2384aa70aaa43
opusfile-0.4-win32.zip

We didn't announce v0.3 separately because the Visual Studio project
files were one of the major new features...but we forgot to include
them in the source package.

Thanks to everyone who contributed!

 -r
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