Move speex into the chrome repo

This is a smaller library that is always checked out and depsed in. It seems there is no particular reason for it to be in a separate repo other than it makes changes more difficult.

Review URL: https://codereview.chromium.org/608853002

Cr-Commit-Position: refs/heads/master@{#297781}

.gitignore

@@ -324,7 +324,6 @@ v8.log
 /third_party/skia
 /third_party/smhasher
 /third_party/snappy/src
-/third_party/speex
 /third_party/swiftshader/include/
 /third_party/swig
 /third_party/syzygy

DEPS

@@ -222,9 +222,6 @@ deps = {
   'src/third_party/libsrtp':
    Var('chromium_git') + '/chromium/deps/libsrtp.git' + '@' + '98284c8600c73812ff4716a6ea157d1e11d417dc',
 
-  'src/third_party/speex':
-   Var('chromium_git') + '/chromium/deps/speex.git' + '@' + '5260621c36c227209c7ba64ea71ca3418cf9e2b4',
-
   'src/third_party/yasm/source/patched-yasm':
    Var('chromium_git') + '/chromium/deps/yasm/patched-yasm.git' + '@' + 'c960eb11ccda80b10ed50be39df4f0663b371d1d',
 
@@ -391,7 +388,6 @@ deps_os = {
     'src/third_party/safe_browsing/testing': None,
     'src/third_party/scons-2.0.1': None,
     'src/third_party/sfntly/cpp/src': None,
-    'src/third_party/speex': None,
     'src/third_party/swig/Lib': None,
     'src/third_party/usrsctp/usrsctplib': None,
     'src/third_party/v8-i18n': None,

third_party/speex/AUTHORS

@@ -0,0 +1,18 @@
+Jean-Marc Valin <jean-marc.valin@usherbrooke.ca>
+   All the code except the following
+
+David Rowe <david@rowetel.com>
+   lsp.c lsp.h 
+   Also ideas and feedback
+
+John Francis Edwards
+   wave_out.[ch], some #ifdefs for windows port and MSVC project files
+
+Segher Boessenkool
+   Misc. optimizations (for QMF in particular)
+
+Atsuhiko Yamanaka <ymnk@jcraft.com>:
+   Patch to speexenc.c to add Vorbis comment format
+
+Radim Kolar <hsn@cybermail.net>:
+   Patch to speexenc.c for supporting more input formats

third_party/speex/BUILD.gn

@@ -0,0 +1,96 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+config("speex_config") {
+  include_dirs = [
+    "include",  # Clients expect <speex/speex.h> to be a system header.
+  ]
+}
+
+source_set("speex") {
+  sources = [
+    "libspeex/arch.h",
+    "libspeex/bits.c",
+    "libspeex/cb_search.c",
+    "libspeex/cb_search.h",
+    "libspeex/exc_10_16_table.c",
+    "libspeex/exc_10_32_table.c",
+    "libspeex/exc_20_32_table.c",
+    "libspeex/exc_5_256_table.c",
+    "libspeex/exc_5_64_table.c",
+    "libspeex/exc_8_128_table.c",
+    "libspeex/filters.c",
+    "libspeex/filters.h",
+    "libspeex/gain_table.c",
+    "libspeex/gain_table_lbr.c",
+    "libspeex/hexc_10_32_table.c",
+    "libspeex/hexc_table.c",
+    "libspeex/high_lsp_tables.c",
+    "libspeex/lpc.c",
+    "libspeex/lpc.h",
+    "libspeex/lsp.c",
+    "libspeex/lsp.h",
+    "libspeex/lsp_tables_nb.c",
+    "libspeex/ltp.c",
+    "libspeex/ltp.h",
+    "libspeex/math_approx.h",
+    "libspeex/modes.c",
+    "libspeex/modes.h",
+    "libspeex/modes_wb.c",
+    "libspeex/nb_celp.c",
+    "libspeex/nb_celp.h",
+    "libspeex/os_support.h",
+    "libspeex/pseudofloat.h",
+    "libspeex/quant_lsp.c",
+    "libspeex/quant_lsp.h",
+    "libspeex/sb_celp.c",
+    "libspeex/sb_celp.h",
+    "libspeex/speex.c",
+    "libspeex/speex_callbacks.c",
+    "libspeex/speex_header.c",
+    "libspeex/stack_alloc.h",
+    "libspeex/stereo.c",
+    "libspeex/vbr.c",
+    "libspeex/vbr.h",
+    "libspeex/vq.c",
+    "libspeex/vq.h",
+    "libspeex/window.c",
+    "include/speex/speex.h",
+    "include/speex/speex_bits.h",
+    "include/speex/speex_buffer.h",
+    "include/speex/speex_callbacks.h",
+    "include/speex/speex_echo.h",
+    "include/speex/speex_header.h",
+    "include/speex/speex_jitter.h",
+    "include/speex/speex_preprocess.h",
+    "include/speex/speex_resampler.h",
+    "include/speex/speex_stereo.h",
+    "include/speex/speex_types.h",
+  ]
+
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+
+  direct_dependent_configs = [ ":speex_config" ]
+
+  include_dirs = [
+    "libspeex",
+  ]
+
+  defines = [
+    "FLOATING_POINT",
+    "EXPORT=",
+    "USE_ALLOCA",
+    "inline=__inline",
+  ]
+
+  cflags = []
+
+  if (is_win) {
+    cflags += [
+      "/wd4244",
+      "/wd4305",
+    ]
+  }
+}

third_party/speex/COPYING

@@ -0,0 +1,35 @@
+Copyright 2002-2008 	Xiph.org Foundation
+Copyright 2002-2008 	Jean-Marc Valin
+Copyright 2005-2007	Analog Devices Inc.
+Copyright 2005-2008	Commonwealth Scientific and Industrial Research 
+                        Organisation (CSIRO)
+Copyright 1993, 2002, 2006 David Rowe
+Copyright 2003 		EpicGames
+Copyright 1992-1994	Jutta Degener, Carsten Bormann
+
+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.
+
+- Neither the name of the Xiph.org Foundation nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+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 FOUNDATION 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.

third_party/speex/README

@@ -0,0 +1,9 @@
+See INSTALL file for instruction on how to install Speex.
+
+The Speex is a patent-free, Open Source/Free Software voice codec. Unlike other codecs like MP3 and Ogg Vorbis, Speex is designed to compress voice at bitrates in the 2-45 kbps range. Possible applications include VoIP, internet audio streaming, archiving of speech data (e.g. voice mail), and audio books. In some sense, it is meant to be complementary to the Ogg Vorbis codec.
+
+To use the Speex command line tools:
+
+% speexenc [options] input_file.wav compressed_file.spx
+
+% speexdec [options] compressed_file.spx output_file.wav

third_party/speex/README.chromium

@@ -0,0 +1,15 @@
+Name: speex
+URL: http://downloads.xiph.org/releases/speex/speex-1.2rc1.tar.gz
+Version: 1.2.rc1
+License: BSD
+Security Critical: yes
+
+Description:
+This contains a copy of speex-1.2.rc1
+
+This library is required for the browser to compress and encode recorded audio
+before sending to Google servers for speech recognition. This is a straight dump
+of speex-1.2rc1 with all the unused files removed with the following changes:
+
+1. Added include/speex/speex_config_types.h generated by the configure script
+   on Linux.

third_party/speex/TODO

@@ -0,0 +1,48 @@
+For 1.2:
+Major points:
+- Make documentation match the actual code (especially jitter buffer, AEC and preprocessor)
+- Get AGC to work in fixed-point even if not totally converted
+- Stabilise all APIs (need feedback)
+- Short-term estimate in jitter buffer
+- Control delay in new AEC API.
+- NaN checks?
+- Better error reporting
+- Make kiss-fft 32-bit safe
+
+Minor issues:
+- Fix last frame of speexenc
+
+
+Post 1.2:
+improve float<->int conversion
+split encoder and decoder?
+Merge TriMedia stuff
+packet dump
+Do VAD properly
+--enable-{aec,preprocessor,jitter,resampler}
+
+Optimisations
+- Add restrict in a few places?
+- enable 4x4 version of pitch_xcorr() at least on some archs?
+- use __builtin_expect() (likely()/unlikely())
+
+Would be nice:
+Implement wideband split as IIR instead of QMF?
+
+Allocator override (speex_lib_ctl?)
+Fixed-point:
+  - VBR
+  - Jitter buffer
+  - AGC
+Denoiser:
+  - Better noise adaptation
+AGC:
+  - Use median filtering instead of "non-linear mean"?
+
+Standards
+-Complete Speex RTP profile
+-MIME type registration
+
+ideas:
+Peelable stream (double codebook, higher bands, stereo)
+LPC from spectral domain