first commit

2025-09-01 14:20:39 +00:00
commit 490fc11f6a
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--- a/third_party/opus/doc/Doxyfile.in
+++ b/third_party/opus/doc/Doxyfile.in
@@ -0,0 +1,340 @@
+# Doxyfile 1.8.18
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+# Only non-default options are included below to improve portability
+# between doxygen versions.
+#
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = Opus
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         = @VERSION@
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          = "Opus audio codec (RFC 6716): API and operations manual"
+
+# With the PROJECT_LOGO tag one can specify a logo or an icon that is included
+# in the documentation. The maximum height of the logo should not exceed 55
+# pixels and the maximum width should not exceed 200 pixels. Doxygen will copy
+# the logo to the output directory.
+
+PROJECT_LOGO           =
+
+# If the FULL_PATH_NAMES tag is set to YES, doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = YES
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 8
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = YES
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES, doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES, upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# (including Cygwin) ands Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error (stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  = @top_srcdir@/include/opus.h \
+                         @top_srcdir@/include/opus_types.h \
+                         @top_srcdir@/include/opus_defines.h \
+                         @top_srcdir@/include/opus_multistream.h \
+                         @top_srcdir@/include/opus_custom.h
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            = @top_srcdir@/doc/header.html
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            = @top_srcdir@/doc/footer.html
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        = @top_srcdir@/doc/customdoxygen.css
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       = @top_srcdir@/doc/opus_logo.svg
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 0
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to YES can help to show when doxygen was last run and thus if the
+# documentation is up to date.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from https://www.mathjax.org before deployment.
+# The default value is: https://cdn.jsdelivr.net/npm/mathjax@2.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = https://www.mathjax.org/mathjax
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = letter
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES, doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the MACRO_EXPANSION tag is set to YES, doxygen will expand all macro names
+# in the source code. If set to NO, only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = YES
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             = OPUS_EXPORT= \
+                         OPUS_CUSTOM_EXPORT= \
+                         OPUS_CUSTOM_EXPORT_STATIC= \
+                         OPUS_WARN_UNUSED_RESULT= \
+                         OPUS_ARG_NONNULL(_x)=
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+# Debian defaults to YES here, while Fedora and Homebrew default to NO.
+# So we set this based on whether the graphviz package is available at
+# configure time.
+#
+HAVE_DOT               = @HAVE_DOT@
+
+# move docs to the correct place
+OUTPUT_DIRECTORY       = @top_builddir@/doc
--- a/third_party/opus/doc/Makefile.am
+++ b/third_party/opus/doc/Makefile.am
@@ -0,0 +1,45 @@
+## Process this file with automake to produce Makefile.in
+
+DOCINPUTS = $(top_srcdir)/include/opus.h \
+            $(top_srcdir)/include/opus_multistream.h \
+            $(top_srcdir)/include/opus_defines.h \
+            $(top_srcdir)/include/opus_types.h \
+            $(top_srcdir)/include/opus_custom.h \
+            $(top_srcdir)/doc/header.html \
+            $(top_srcdir)/doc/footer.html \
+            $(top_srcdir)/doc/customdoxygen.css
+
+EXTRA_DIST = customdoxygen.css Doxyfile.in footer.html header.html \
+             opus_logo.svg trivial_example.c
+
+
+if HAVE_DOXYGEN
+
+all-local: doxygen-build.stamp
+
+doxygen-build.stamp: Doxyfile $(DOCINPUTS)
+	doxygen
+	touch $@
+
+install-data-local:
+	$(INSTALL) -d $(DESTDIR)$(docdir)/html/search
+	for f in `find html -type f \! -name "installdox"`; do	\
+		$(INSTALL_DATA) $$f $(DESTDIR)$(docdir)/$$f;	\
+	done
+
+	$(INSTALL) -d $(DESTDIR)$(mandir)/man3
+	cd man && find man3 -type f -name opus_*.3 \
+		  -exec $(INSTALL_DATA) \{} $(DESTDIR)$(mandir)/man3 \;
+
+clean-local:
+	$(RM) -r html
+	$(RM) -r latex
+	$(RM) -r man
+	$(RM) doxygen-build.stamp
+	$(RM) doxygen_sqlite3.db
+
+uninstall-local:
+	$(RM) -r $(DESTDIR)$(docdir)/html
+	$(RM) $(DESTDIR)$(mandir)/man3/opus_*.3 $(DESTDIR)$(mandir)/man3/opus.h.3
+
+endif
--- a/third_party/opus/doc/Makefile.in
+++ b/third_party/opus/doc/Makefile.in
@@ -0,0 +1,521 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = doc
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/as-gcc-inline-assembly.m4 \
+	$(top_srcdir)/m4/ax_add_fortify_source.m4 \
+	$(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltoptions.m4 \
+	$(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \
+	$(top_srcdir)/m4/lt~obsolete.m4 \
+	$(top_srcdir)/m4/opus-intrinsics.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
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+am__v_at_0 = @
+am__v_at_1 = 
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+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+am__DIST_COMMON = $(srcdir)/Doxyfile.in $(srcdir)/Makefile.in TODO
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+ARM2GNU_PARAMS = @ARM2GNU_PARAMS@
+ARM_DOTPROD_INTR_CFLAGS = @ARM_DOTPROD_INTR_CFLAGS@
+ARM_NEON_INTR_CFLAGS = @ARM_NEON_INTR_CFLAGS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+GREP = @GREP@
+HAVE_ARM_NE10 = @HAVE_ARM_NE10@
+HAVE_DOT = @HAVE_DOT@
+HAVE_DOXYGEN = @HAVE_DOXYGEN@
+HAVE_PERL = @HAVE_PERL@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBM = @LIBM@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAINT = @MAINT@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+NE10_CFLAGS = @NE10_CFLAGS@
+NE10_LIBS = @NE10_LIBS@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPUS_ARM_DOTPROD_INTR_CFLAGS = @OPUS_ARM_DOTPROD_INTR_CFLAGS@
+OPUS_ARM_MAY_HAVE_DOTPROD = @OPUS_ARM_MAY_HAVE_DOTPROD@
+OPUS_ARM_MAY_HAVE_EDSP = @OPUS_ARM_MAY_HAVE_EDSP@
+OPUS_ARM_MAY_HAVE_MEDIA = @OPUS_ARM_MAY_HAVE_MEDIA@
+OPUS_ARM_MAY_HAVE_NEON = @OPUS_ARM_MAY_HAVE_NEON@
+OPUS_ARM_NEON_INTR_CFLAGS = @OPUS_ARM_NEON_INTR_CFLAGS@
+OPUS_HAVE_RTCD = @OPUS_HAVE_RTCD@
+OPUS_LT_AGE = @OPUS_LT_AGE@
+OPUS_LT_CURRENT = @OPUS_LT_CURRENT@
+OPUS_LT_REVISION = @OPUS_LT_REVISION@
+OPUS_X86_AVX2_CFLAGS = @OPUS_X86_AVX2_CFLAGS@
+OPUS_X86_SSE2_CFLAGS = @OPUS_X86_SSE2_CFLAGS@
+OPUS_X86_SSE4_1_CFLAGS = @OPUS_X86_SSE4_1_CFLAGS@
+OPUS_X86_SSE_CFLAGS = @OPUS_X86_SSE_CFLAGS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PC_BUILD = @PC_BUILD@
+RANLIB = @RANLIB@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+X86_AVX2_CFLAGS = @X86_AVX2_CFLAGS@
+X86_SSE2_CFLAGS = @X86_SSE2_CFLAGS@
+X86_SSE4_1_CFLAGS = @X86_SSE4_1_CFLAGS@
+X86_SSE_CFLAGS = @X86_SSE_CFLAGS@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+DOCINPUTS = $(top_srcdir)/include/opus.h \
+            $(top_srcdir)/include/opus_multistream.h \
+            $(top_srcdir)/include/opus_defines.h \
+            $(top_srcdir)/include/opus_types.h \
+            $(top_srcdir)/include/opus_custom.h \
+            $(top_srcdir)/doc/header.html \
+            $(top_srcdir)/doc/footer.html \
+            $(top_srcdir)/doc/customdoxygen.css
+
+EXTRA_DIST = customdoxygen.css Doxyfile.in footer.html header.html \
+             opus_logo.svg trivial_example.c
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu doc/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu doc/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+Doxyfile: $(top_builddir)/config.status $(srcdir)/Doxyfile.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+@HAVE_DOXYGEN_FALSE@all-local:
+all-am: Makefile all-local
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+@HAVE_DOXYGEN_FALSE@clean-local:
+@HAVE_DOXYGEN_FALSE@install-data-local:
+@HAVE_DOXYGEN_FALSE@uninstall-local:
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-local mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-data-local
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-local
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am all-local check check-am clean clean-generic \
+	clean-libtool clean-local cscopelist-am ctags-am distclean \
+	distclean-generic distclean-libtool distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-data-local install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \
+	uninstall-am uninstall-local
+
+.PRECIOUS: Makefile
+
+
+@HAVE_DOXYGEN_TRUE@all-local: doxygen-build.stamp
+
+@HAVE_DOXYGEN_TRUE@doxygen-build.stamp: Doxyfile $(DOCINPUTS)
+@HAVE_DOXYGEN_TRUE@	doxygen
+@HAVE_DOXYGEN_TRUE@	touch $@
+
+@HAVE_DOXYGEN_TRUE@install-data-local:
+@HAVE_DOXYGEN_TRUE@	$(INSTALL) -d $(DESTDIR)$(docdir)/html/search
+@HAVE_DOXYGEN_TRUE@	for f in `find html -type f \! -name "installdox"`; do	\
+@HAVE_DOXYGEN_TRUE@		$(INSTALL_DATA) $$f $(DESTDIR)$(docdir)/$$f;	\
+@HAVE_DOXYGEN_TRUE@	done
+
+@HAVE_DOXYGEN_TRUE@	$(INSTALL) -d $(DESTDIR)$(mandir)/man3
+@HAVE_DOXYGEN_TRUE@	cd man && find man3 -type f -name opus_*.3 \
+@HAVE_DOXYGEN_TRUE@		  -exec $(INSTALL_DATA) \{} $(DESTDIR)$(mandir)/man3 \;
+
+@HAVE_DOXYGEN_TRUE@clean-local:
+@HAVE_DOXYGEN_TRUE@	$(RM) -r html
+@HAVE_DOXYGEN_TRUE@	$(RM) -r latex
+@HAVE_DOXYGEN_TRUE@	$(RM) -r man
+@HAVE_DOXYGEN_TRUE@	$(RM) doxygen-build.stamp
+@HAVE_DOXYGEN_TRUE@	$(RM) doxygen_sqlite3.db
+
+@HAVE_DOXYGEN_TRUE@uninstall-local:
+@HAVE_DOXYGEN_TRUE@	$(RM) -r $(DESTDIR)$(docdir)/html
+@HAVE_DOXYGEN_TRUE@	$(RM) $(DESTDIR)$(mandir)/man3/opus_*.3 $(DESTDIR)$(mandir)/man3/opus.h.3
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- a/third_party/opus/doc/TODO
+++ b/third_party/opus/doc/TODO
@@ -0,0 +1,7 @@
+define audio bandwidth as frequency range
+
+repeat padding recommendation
+
+ptime: refer to RFC
+
+Opus does not provide any confidentiality or integrity protection
--- a/third_party/opus/doc/customdoxygen.css
+++ b/third_party/opus/doc/customdoxygen.css
--- a/third_party/opus/doc/footer.html
+++ b/third_party/opus/doc/footer.html
@@ -0,0 +1,32 @@
+<!-- HTML footer for doxygen 1.8.18-->
+<!-- start footer part -->
+<!--BEGIN GENERATE_TREEVIEW-->
+<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
+  <ul>
+    <li class="footer">Generated by
+    <a href="http://www.doxygen.org/index.html">
+    <img class="footer" src="doxygen.png" alt="doxygen"/></a> $doxygenversion </li>
+   </ul>
+ </div>
+<!--END GENERATE_TREEVIEW-->
+<!--BEGIN !GENERATE_TREEVIEW-->
+<hr class="footer"/>
+<table width="100%">
+  <tbody>
+    <tr>
+      <td>
+For more information visit the <a href="https://opus-codec.org">Opus Website</a>.
+      </td>
+      <td>
+        <address class="footer"><small>
+          Generated by
+          <a href="http://www.doxygen.org/index.html">doxygen</a>
+          $doxygenversion
+        </small></address>
+      </td>
+    </tr>
+  </tbody>
+</table>
+<!--END !GENERATE_TREEVIEW-->
+</body>
+</html>
--- a/third_party/opus/doc/header.html
+++ b/third_party/opus/doc/header.html
@@ -0,0 +1,61 @@
+<!-- HTML header for doxygen 1.8.18-->
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
+<meta http-equiv="X-UA-Compatible" content="IE=9"/>
+<meta name="generator" content="Doxygen $doxygenversion"/>
+<meta name="viewport" content="width=device-width, initial-scale=1"/>
+<!--BEGIN PROJECT_NAME--><title>$projectname: $title</title><!--END PROJECT_NAME-->
+<!--BEGIN !PROJECT_NAME--><title>$title</title><!--END !PROJECT_NAME-->
+<link href="$relpath^tabs.css" rel="stylesheet" type="text/css"/>
+<script type="text/javascript" src="$relpath^jquery.js"></script>
+<script type="text/javascript" src="$relpath^dynsections.js"></script>
+$treeview
+$search
+$mathjax
+<link href="$relpath^$stylesheet" rel="stylesheet" type="text/css" />
+$extrastylesheet
+</head>
+<body>
+<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
+
+<!--BEGIN TITLEAREA-->
+<div id="titlearea">
+<table cellspacing="0" cellpadding="0">
+ <tbody>
+ <tr style="height: 64px;">
+  <!--BEGIN PROJECT_LOGO-->
+  <td id="projectlogo"><img alt="Logo" src="$relpath^$projectlogo"/></td>
+  <!--END PROJECT_LOGO-->
+  <!--BEGIN PROJECT_NAME-->
+  <td style="padding-left: 0.5em;">
+  <div id="projectname"><img src="opus_logo.svg" width=112 height=64 alt="Opus"/><!--$projectname--></div>
+  </td>
+  <td><table style="padding-left: 0.5em;" cellspacing="0" cellpadding="0"><tbody>
+   <tr><td>
+   <!--BEGIN PROJECT_BRIEF--><div id="projectbrief">$projectbrief</div><!--END PROJECT_BRIEF-->
+   </td></tr>
+  <td><!--BEGIN PROJECT_NUMBER--><span id="projectnumber">$projectnumber</span><!--END PROJECT_NUMBER-->
+   </td></tr>
+   </table>
+  </td>
+  <!--END PROJECT_NAME-->
+  <!--BEGIN !PROJECT_NAME-->
+   <!--BEGIN PROJECT_BRIEF-->
+    <td style="padding-left: 0.5em;">
+    <div id="projectbrief">$projectbrief</div>
+    </td>
+   <!--END PROJECT_BRIEF-->
+  <!--END !PROJECT_NAME-->
+  <!--BEGIN DISABLE_INDEX-->
+   <!--BEGIN SEARCHENGINE-->
+   <td>$searchbox</td>
+   <!--END SEARCHENGINE-->
+  <!--END DISABLE_INDEX-->
+ </tr>
+ </tbody>
+</table>
+</div>
+<!--END TITLEAREA-->
+<!-- end header part -->
--- a/third_party/opus/doc/meson.build
+++ b/third_party/opus/doc/meson.build
@@ -0,0 +1,33 @@
+have_dot = find_program('dot', required: false).found()
+
+doxyfile_conf = configuration_data()
+doxyfile_conf.set('VERSION', opus_version)
+doxyfile_conf.set('HAVE_DOT', have_dot)
+doxyfile_conf.set('top_srcdir', top_srcdir)
+doxyfile_conf.set('top_builddir', top_builddir)
+
+doxyfile = configure_file(input: 'Doxyfile.in',
+  output: 'Doxyfile',
+  configuration: doxyfile_conf,
+  install: false)
+
+docdir = join_paths(get_option('datadir'), get_option('docdir'))
+
+doc_inputs = [
+  'customdoxygen.css',
+  'footer.html',
+  'header.html',
+  'opus_logo.svg',
+  top_srcdir + '/include/opus.h',
+  top_srcdir + '/include/opus_multistream.h',
+  top_srcdir + '/include/opus_defines.h',
+  top_srcdir + '/include/opus_types.h',
+  top_srcdir + '/include/opus_custom.h',
+]
+
+custom_target('doc',
+  input: [ doxyfile ] + doc_inputs,
+  output: [ 'html' ],
+  command: [ doxygen, doxyfile ],
+  install_dir: docdir,
+  install: true)
--- a/third_party/opus/doc/opus_logo.svg
+++ b/third_party/opus/doc/opus_logo.svg
@@ -0,0 +1,157 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   version="1.1"
+   x="0px"
+   y="0px"
+   width="360"
+   height="205"
+   viewBox="-72 -23.757 360 205"
+   overflow="visible"
+   enable-background="new -72 -23.757 504 252"
+   xml:space="preserve"
+   id="svg2"
+   style="overflow:visible">
+<defs
+   id="defs4">
+<linearGradient
+   xlink:href="#SVGID_1_"
+   id="linearGradient3027"
+   gradientUnits="userSpaceOnUse"
+   x1="194.53169"
+   y1="95.107399"
+   x2="194.53169"
+   y2="9.9475983e-14" /><linearGradient
+   xlink:href="#SVGID_2_"
+   id="linearGradient3029"
+   gradientUnits="userSpaceOnUse"
+   x1="229.61819"
+   y1="116.208"
+   x2="229.61819"
+   y2="164.46291" /><linearGradient
+   xlink:href="#SVGID_3_"
+   id="linearGradient3031"
+   gradientUnits="userSpaceOnUse"
+   x1="43.9897"
+   y1="115.4395"
+   x2="43.9897"
+   y2="165.2314" /><linearGradient
+   xlink:href="#SVGID_4_"
+   id="linearGradient3033"
+   gradientUnits="userSpaceOnUse"
+   x1="311.2847"
+   y1="115.7188"
+   x2="311.2847"
+   y2="165.2822" /><linearGradient
+   xlink:href="#SVGID_5_"
+   id="linearGradient3035"
+   gradientUnits="userSpaceOnUse"
+   x1="129.1987"
+   y1="115.5791"
+   x2="129.1987"
+   y2="204.4863" /></defs>
+<linearGradient
+   id="SVGID_1_"
+   gradientUnits="userSpaceOnUse"
+   x1="194.53169"
+   y1="95.107399"
+   x2="194.53169"
+   y2="9.9475983e-14">
+        <stop
+   offset="0.0056"
+   style="stop-color:#8E8E8E"
+   id="stop7" />
+        <stop
+   offset="1"
+   style="stop-color:#B5B5B5"
+   id="stop9" />
+</linearGradient>
+
+<linearGradient
+   id="SVGID_2_"
+   gradientUnits="userSpaceOnUse"
+   x1="229.61819"
+   y1="116.208"
+   x2="229.61819"
+   y2="164.46291">
+        <stop
+   offset="0.0056"
+   style="stop-color:#494748"
+   id="stop14" />
+        <stop
+   offset="1"
+   style="stop-color:#000000"
+   id="stop16" />
+</linearGradient>
+
+<linearGradient
+   id="SVGID_3_"
+   gradientUnits="userSpaceOnUse"
+   x1="43.9897"
+   y1="115.4395"
+   x2="43.9897"
+   y2="165.2314">
+        <stop
+   offset="0.0056"
+   style="stop-color:#494748"
+   id="stop21" />
+        <stop
+   offset="1"
+   style="stop-color:#000000"
+   id="stop23" />
+</linearGradient>
+
+<linearGradient
+   id="SVGID_4_"
+   gradientUnits="userSpaceOnUse"
+   x1="311.2847"
+   y1="115.7188"
+   x2="311.2847"
+   y2="165.2822">
+        <stop
+   offset="0.0056"
+   style="stop-color:#494748"
+   id="stop28" />
+        <stop
+   offset="1"
+   style="stop-color:#000000"
+   id="stop30" />
+</linearGradient>
+
+<linearGradient
+   id="SVGID_5_"
+   gradientUnits="userSpaceOnUse"
+   x1="129.1987"
+   y1="115.5791"
+   x2="129.1987"
+   y2="204.4863">
+        <stop
+   offset="0.0056"
+   style="stop-color:#494748"
+   id="stop35" />
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--- a/third_party/opus/doc/trivial_example.c
+++ b/third_party/opus/doc/trivial_example.c
@@ -0,0 +1,171 @@
+/* Copyright (c) 2013 Jean-Marc Valin */
+/*
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/* This is meant to be a simple example of encoding and decoding audio
+   using Opus. It should make it easy to understand how the Opus API
+   works. For more information, see the full API documentation at:
+   https://www.opus-codec.org/docs/ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <opus.h>
+#include <stdio.h>
+
+/*The frame size is hardcoded for this sample code but it doesn't have to be*/
+#define FRAME_SIZE 960
+#define SAMPLE_RATE 48000
+#define CHANNELS 2
+#define APPLICATION OPUS_APPLICATION_AUDIO
+#define BITRATE 64000
+
+#define MAX_FRAME_SIZE 6*960
+#define MAX_PACKET_SIZE (3*1276)
+
+int main(int argc, char **argv)
+{
+   char *inFile;
+   FILE *fin;
+   char *outFile;
+   FILE *fout;
+   opus_int16 in[FRAME_SIZE*CHANNELS];
+   opus_int16 out[MAX_FRAME_SIZE*CHANNELS];
+   unsigned char cbits[MAX_PACKET_SIZE];
+   int nbBytes;
+   /*Holds the state of the encoder and decoder */
+   OpusEncoder *encoder;
+   OpusDecoder *decoder;
+   int err;
+
+   if (argc != 3)
+   {
+      fprintf(stderr, "usage: trivial_example input.pcm output.pcm\n");
+      fprintf(stderr, "input and output are 16-bit little-endian raw files\n");
+      return EXIT_FAILURE;
+   }
+
+   /*Create a new encoder state */
+   encoder = opus_encoder_create(SAMPLE_RATE, CHANNELS, APPLICATION, &err);
+   if (err<0)
+   {
+      fprintf(stderr, "failed to create an encoder: %s\n", opus_strerror(err));
+      return EXIT_FAILURE;
+   }
+   /* Set the desired bit-rate. You can also set other parameters if needed.
+      The Opus library is designed to have good defaults, so only set
+      parameters you know you need. Doing otherwise is likely to result
+      in worse quality, but better. */
+   err = opus_encoder_ctl(encoder, OPUS_SET_BITRATE(BITRATE));
+   if (err<0)
+   {
+      fprintf(stderr, "failed to set bitrate: %s\n", opus_strerror(err));
+      return EXIT_FAILURE;
+   }
+   inFile = argv[1];
+   fin = fopen(inFile, "rb");
+   if (fin==NULL)
+   {
+      fprintf(stderr, "failed to open input file: %s\n", strerror(errno));
+      return EXIT_FAILURE;
+   }
+
+
+   /* Create a new decoder state. */
+   decoder = opus_decoder_create(SAMPLE_RATE, CHANNELS, &err);
+   if (err<0)
+   {
+      fprintf(stderr, "failed to create decoder: %s\n", opus_strerror(err));
+      return EXIT_FAILURE;
+   }
+   outFile = argv[2];
+   fout = fopen(outFile, "wb");
+   if (fout==NULL)
+   {
+      fprintf(stderr, "failed to open output file: %s\n", strerror(errno));
+      return EXIT_FAILURE;
+   }
+
+   while (1)
+   {
+      int i;
+      unsigned char pcm_bytes[MAX_FRAME_SIZE*CHANNELS*2];
+      int frame_size;
+      size_t samples;
+
+      /* Read a 16 bits/sample audio frame. */
+      samples = fread(pcm_bytes, sizeof(short)*CHANNELS, FRAME_SIZE, fin);
+
+      /* For simplicity, only read whole frames. In a real application,
+       * we'd pad the final partial frame with zeroes, record the exact
+       * duration, and trim the decoded audio to match.
+       */
+      if (samples != FRAME_SIZE)
+      {
+         break;
+      }
+
+      /* Convert from little-endian ordering. */
+      for (i=0;i<CHANNELS*FRAME_SIZE;i++)
+      {
+         in[i]=pcm_bytes[2*i+1]<<8|pcm_bytes[2*i];
+      }
+
+      /* Encode the frame. */
+      nbBytes = opus_encode(encoder, in, FRAME_SIZE, cbits, MAX_PACKET_SIZE);
+      if (nbBytes<0)
+      {
+         fprintf(stderr, "encode failed: %s\n", opus_strerror(nbBytes));
+         return EXIT_FAILURE;
+      }
+
+
+      /* Decode the data. In this example, frame_size will be constant because
+         the encoder is using a constant frame size. However, that may not
+         be the case for all encoders, so the decoder must always check
+         the frame size returned. */
+      frame_size = opus_decode(decoder, cbits, nbBytes, out, MAX_FRAME_SIZE, 0);
+      if (frame_size<0)
+      {
+         fprintf(stderr, "decoder failed: %s\n", opus_strerror(frame_size));
+         return EXIT_FAILURE;
+      }
+
+      /* Convert to little-endian ordering. */
+      for(i=0;i<CHANNELS*frame_size;i++)
+      {
+         pcm_bytes[2*i]=out[i]&0xFF;
+         pcm_bytes[2*i+1]=(out[i]>>8)&0xFF;
+      }
+      /* Write the decoded audio to file. */
+      fwrite(pcm_bytes, sizeof(short), frame_size*CHANNELS, fout);
+   }
+   /*Destroy the encoder state*/
+   opus_encoder_destroy(encoder);
+   opus_decoder_destroy(decoder);
+   fclose(fin);
+   fclose(fout);
+   return EXIT_SUCCESS;
+}