Switch Opus uses the same output format that opus_demo writes. Each frame has an 8-byte header.
The first 4 bytes contain the length of the frame. The second 4 bytes contain the final state of the range coder.
8299edfc0c/src/opus_demo.c (L658-L681)
Makefile.audacious.am:
* Add test/ subdirectory to the Autotools build
* Add version.h to EXTRA_DIST so that "make distcheck" passes
audacious/Makefile.audacious.am:
* Install Audacious plug-in into the appropriate directory
* No need to include CXXFLAGS in AM_CXXFLAGS, as the former is already
included in the compiler invocation
configure.ac:
* Need to link to libvorbis in order for static-library builds
(--disable-shared) to link correctly
* Only add GCC-specific compiler flags if GCC is detected
* Tightened up the GCC warning flags
* Don't set LIBS, so that different targets can link against different
libraries
* Generate makefile for test/ subdirectory
src/Makefile.audacious.am:
* Install libvgmstream into the library directory
* Removed GCC-specific flag from AM_CFLAGS
* No need to include CFLAGS in AM_CFLAGS, as the former is already
included in the compiler invocation
* Add libvgmstream dependencies via LIBADD instead of global LIBS var
test/Makefile.audacious.am:
* New makefile template for test/ subdirectory
unbootstrap:
* Also remove "compile" script from bootstrap
This is needed for blocked layout, as it can't do normal interleave.
Probably could be fixed in the future to remove several superfluous
_int/block decoders
Previously, the streams' offsets needed to be pre-adjusted with the
interleave; now assumes all streams start in the same offset (first
stream).
This simplifies short last interleaves (SCD/P3D) and makes
layout_mpeg_custom unnecessary (also allows theoretical variable-sized
interleaves).
The layout was designed to do subframe deinterleave (when
less-than-a-frame bytes of each channel are interleaved) in an array and
pass it to "mem" decoders.
In practice this only happens in a handful of formats, was only used
with DSP, and since making "mem" decoders is required it's simpler to
make normal decoders handling the byte layout directly.
In an effort to simplify vgmstream's layouts, code, and other esoteric
features I changed the old decode_ngc_dsp_mem for decode_ngc_dsp_subint;
results are byte-exact.
EACS was just DVI (high nibble first) with stereo and mono modes, while
old DVI was mono only.
This unifies both decoders, so DVI_IMA (not interleaved) works with mono
and stereo while DVI_IMA_int (interleaved) forces mono.
Some metas needed to explicitly set DVI_IMA_int but others work with no
change.
Those are custom read/seeks that can transform data on the fly, for
games that use variations of regular FFmpeg codecs. When FFmpeg tries to
read N bytes, the code may read less/more but still fill the buffer with
N transformed bytes. Must handle "real" (data) and "virtual"
(transformed) offset/sizes.
Works with fake headers too, but "virtual" offset/size now include the
fake header, as I found hard to keep in mind when the header_size was
being added/substracted (could be clearer).
To support future MPEGs of uncertain layout and frame variations (namely
EALayer3) the code has been restructured: mpeg_decoder does stream
procesing and decoding, while mpeg_custom_utils_x does init and parsing
(write to data buffer + update offsets), per MPEG subtype. Internals
have changed but still gives byte-exact results.
AHX has been adapted to this format as a test. Some modes
(P3D/EALayer3/LyN/AWC) are defined for later development but will fail
on init ATM.
EA's MT/MicroTalk is not the early version of EAXA as I thought, but a
rarely used VBR codec (ex. FIFA 2001/2002 PS2) seemingly related to
Westwood VBR ADPCM
* tested most variations using EA's tools
* added looping [Need for Speed II PC]
* added DSP support [3DS games]
* fixed PCM/EAXA/MT in some cases [PS2/GC/XBOX/Wii games]
* fixed sample rate/codec defaults, num_samples in some cases
* documented more header patches and other details (ex. "EA ADPCM" is
now EA MT/MicroTalk, as per EA's tools)
* (dev) some internals adapted for EA stuff
