Fix cyclic deps: rent_a_codec<->audio_coding and rent_a_codec<->neteq

In short, what I did was to

  * Remove acm_common_defs.h (the stuff in it was used only by
    acm_codec_database.cc).

  * Move audio_coding_module_typedefs.h to a new build target.

  * Move the NetEqDecoder enum (and the associated
    NetEqDecoderToSdpAudioFormat function) to a new file in a new
    build target.

BUG=webrtc:7243, webrtc:7244

Review-Url: https://codereview.webrtc.org/2723253005
Cr-Commit-Position: refs/heads/master@{#17005}
diff --git a/webrtc/modules/audio_coding/acm2/acm_codec_database.cc b/webrtc/modules/audio_coding/acm2/acm_codec_database.cc
index 0fae75b..a1ff641 100644
--- a/webrtc/modules/audio_coding/acm2/acm_codec_database.cc
+++ b/webrtc/modules/audio_coding/acm2/acm_codec_database.cc
@@ -20,9 +20,12 @@
 #include <assert.h>
 
 #include "webrtc/base/checks.h"
-#include "webrtc/modules/audio_coding/acm2/acm_common_defs.h"
 #include "webrtc/system_wrappers/include/trace.h"
 
+#if ((defined WEBRTC_CODEC_ISAC) && (defined WEBRTC_CODEC_ISACFX))
+#error iSAC and iSACFX codecs cannot be enabled at the same time
+#endif
+
 namespace webrtc {
 
 namespace acm2 {
@@ -60,9 +63,9 @@
 
 const CodecInst ACMCodecDB::database_[] = {
 #if (defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX))
-  {103, "ISAC", 16000, kIsacPacSize480, 1, kIsacWbDefaultRate},
+  {103, "ISAC", 16000, 480, 1, 32000},
 # if (defined(WEBRTC_CODEC_ISAC))
-  {104, "ISAC", 32000, kIsacPacSize960, 1, kIsacSwbDefaultRate},
+  {104, "ISAC", 32000, 960, 1, 56000},
 # endif
 #endif
   // Mono
@@ -118,9 +121,9 @@
 // Basic block samples, max number of channels that are supported.
 const ACMCodecDB::CodecSettings ACMCodecDB::codec_settings_[] = {
 #if (defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX))
-    {2, {kIsacPacSize480, kIsacPacSize960}, 0, 1},
+    {2, {480, 960}, 0, 1},
 # if (defined(WEBRTC_CODEC_ISAC))
-    {1, {kIsacPacSize960}, 0, 1},
+    {1, {960}, 0, 1},
 # endif
 #endif
     // Mono
diff --git a/webrtc/modules/audio_coding/acm2/acm_codec_database.h b/webrtc/modules/audio_coding/acm2/acm_codec_database.h
index 22c40db..d586cb9 100644
--- a/webrtc/modules/audio_coding/acm2/acm_codec_database.h
+++ b/webrtc/modules/audio_coding/acm2/acm_codec_database.h
@@ -18,7 +18,6 @@
 
 #include "webrtc/common_types.h"
 #include "webrtc/modules/audio_coding/acm2/rent_a_codec.h"
-#include "webrtc/modules/audio_coding/neteq/include/neteq.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
diff --git a/webrtc/modules/audio_coding/acm2/acm_common_defs.h b/webrtc/modules/audio_coding/acm2/acm_common_defs.h
deleted file mode 100644
index 0851932..0000000
--- a/webrtc/modules/audio_coding/acm2/acm_common_defs.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_MODULES_AUDIO_CODING_ACM2_ACM_COMMON_DEFS_H_
-#define WEBRTC_MODULES_AUDIO_CODING_ACM2_ACM_COMMON_DEFS_H_
-
-#include "webrtc/typedefs.h"
-
-// Checks for enabled codecs, we prevent enabling codecs which are not
-// compatible.
-#if ((defined WEBRTC_CODEC_ISAC) && (defined WEBRTC_CODEC_ISACFX))
-#error iSAC and iSACFX codecs cannot be enabled at the same time
-#endif
-
-namespace webrtc {
-
-// General codec specific defines
-const int kIsacWbDefaultRate = 32000;
-const int kIsacSwbDefaultRate = 56000;
-const int kIsacPacSize480 = 480;
-const int kIsacPacSize960 = 960;
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_AUDIO_CODING_ACM2_ACM_COMMON_DEFS_H_
diff --git a/webrtc/modules/audio_coding/acm2/acm_receiver.cc b/webrtc/modules/audio_coding/acm2/acm_receiver.cc
index 1577d2d..21dbc74 100644
--- a/webrtc/modules/audio_coding/acm2/acm_receiver.cc
+++ b/webrtc/modules/audio_coding/acm2/acm_receiver.cc
@@ -27,6 +27,7 @@
 #include "webrtc/modules/audio_coding/neteq/include/neteq.h"
 #include "webrtc/system_wrappers/include/clock.h"
 #include "webrtc/system_wrappers/include/trace.h"
+#include "webrtc/modules/audio_coding/acm2/rent_a_codec.h"
 
 namespace webrtc {
 
@@ -199,7 +200,7 @@
     return *ned;
   }();
   const rtc::Optional<SdpAudioFormat> new_format =
-      RentACodec::NetEqDecoderToSdpAudioFormat(neteq_decoder);
+      NetEqDecoderToSdpAudioFormat(neteq_decoder);
 
   rtc::CritScope lock(&crit_sect_);
 
diff --git a/webrtc/modules/audio_coding/acm2/acm_receiver_unittest.cc b/webrtc/modules/audio_coding/acm2/acm_receiver_unittest.cc
index d5a63cc..05f4e11 100644
--- a/webrtc/modules/audio_coding/acm2/acm_receiver_unittest.cc
+++ b/webrtc/modules/audio_coding/acm2/acm_receiver_unittest.cc
@@ -16,6 +16,7 @@
 #include "webrtc/api/audio_codecs/builtin_audio_decoder_factory.h"
 #include "webrtc/base/checks.h"
 #include "webrtc/base/safe_conversions.h"
+#include "webrtc/modules/audio_coding/acm2/rent_a_codec.h"
 #include "webrtc/modules/audio_coding/include/audio_coding_module.h"
 #include "webrtc/modules/audio_coding/neteq/tools/rtp_generator.h"
 #include "webrtc/system_wrappers/include/clock.h"
diff --git a/webrtc/modules/audio_coding/acm2/rent_a_codec.cc b/webrtc/modules/audio_coding/acm2/rent_a_codec.cc
index f0ed301..b353b38 100644
--- a/webrtc/modules/audio_coding/acm2/rent_a_codec.cc
+++ b/webrtc/modules/audio_coding/acm2/rent_a_codec.cc
@@ -23,12 +23,12 @@
 #include "webrtc/modules/audio_coding/codecs/ilbc/audio_encoder_ilbc.h"
 #endif
 #ifdef WEBRTC_CODEC_ISACFX
-#include "webrtc/modules/audio_coding/codecs/isac/fix/include/audio_decoder_isacfix.h"
-#include "webrtc/modules/audio_coding/codecs/isac/fix/include/audio_encoder_isacfix.h"
+#include "webrtc/modules/audio_coding/codecs/isac/fix/include/audio_decoder_isacfix.h"  // nogncheck
+#include "webrtc/modules/audio_coding/codecs/isac/fix/include/audio_encoder_isacfix.h"  // nogncheck
 #endif
 #ifdef WEBRTC_CODEC_ISAC
-#include "webrtc/modules/audio_coding/codecs/isac/main/include/audio_decoder_isac.h"
-#include "webrtc/modules/audio_coding/codecs/isac/main/include/audio_encoder_isac.h"
+#include "webrtc/modules/audio_coding/codecs/isac/main/include/audio_decoder_isac.h"  // nogncheck
+#include "webrtc/modules/audio_coding/codecs/isac/main/include/audio_encoder_isac.h"  // nogncheck
 #endif
 #ifdef WEBRTC_CODEC_OPUS
 #include "webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.h"
@@ -38,7 +38,6 @@
 #include "webrtc/modules/audio_coding/codecs/red/audio_encoder_copy_red.h"
 #endif
 #include "webrtc/modules/audio_coding/acm2/acm_codec_database.h"
-#include "webrtc/modules/audio_coding/acm2/acm_common_defs.h"
 
 #if defined(WEBRTC_CODEC_ISACFX) || defined(WEBRTC_CODEC_ISAC)
 #include "webrtc/modules/audio_coding/codecs/isac/locked_bandwidth_info.h"
@@ -47,78 +46,6 @@
 namespace webrtc {
 namespace acm2 {
 
-rtc::Optional<SdpAudioFormat> RentACodec::NetEqDecoderToSdpAudioFormat(
-    NetEqDecoder nd) {
-  switch (nd) {
-    case NetEqDecoder::kDecoderPCMu:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("pcmu", 8000, 1));
-    case NetEqDecoder::kDecoderPCMa:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("pcma", 8000, 1));
-    case NetEqDecoder::kDecoderPCMu_2ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("pcmu", 8000, 2));
-    case NetEqDecoder::kDecoderPCMa_2ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("pcma", 8000, 2));
-    case NetEqDecoder::kDecoderILBC:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("ilbc", 8000, 1));
-    case NetEqDecoder::kDecoderISAC:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("isac", 16000, 1));
-    case NetEqDecoder::kDecoderISACswb:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("isac", 32000, 1));
-    case NetEqDecoder::kDecoderPCM16B:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 8000, 1));
-    case NetEqDecoder::kDecoderPCM16Bwb:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 16000, 1));
-    case NetEqDecoder::kDecoderPCM16Bswb32kHz:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 32000, 1));
-    case NetEqDecoder::kDecoderPCM16Bswb48kHz:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 48000, 1));
-    case NetEqDecoder::kDecoderPCM16B_2ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 8000, 2));
-    case NetEqDecoder::kDecoderPCM16Bwb_2ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 16000, 2));
-    case NetEqDecoder::kDecoderPCM16Bswb32kHz_2ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 32000, 2));
-    case NetEqDecoder::kDecoderPCM16Bswb48kHz_2ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 48000, 2));
-    case NetEqDecoder::kDecoderPCM16B_5ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("l16", 8000, 5));
-    case NetEqDecoder::kDecoderG722:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("g722", 8000, 1));
-    case NetEqDecoder::kDecoderG722_2ch:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("g722", 8000, 2));
-    case NetEqDecoder::kDecoderOpus:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("opus", 48000, 2));
-    case NetEqDecoder::kDecoderOpus_2ch:
-      return rtc::Optional<SdpAudioFormat>(
-          SdpAudioFormat("opus", 48000, 2,
-                         std::map<std::string, std::string>{{"stereo", "1"}}));
-    case NetEqDecoder::kDecoderRED:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("red", 8000, 1));
-    case NetEqDecoder::kDecoderAVT:
-      return rtc::Optional<SdpAudioFormat>(
-          SdpAudioFormat("telephone-event", 8000, 1));
-    case NetEqDecoder::kDecoderAVT16kHz:
-      return rtc::Optional<SdpAudioFormat>(
-          SdpAudioFormat("telephone-event", 16000, 1));
-    case NetEqDecoder::kDecoderAVT32kHz:
-      return rtc::Optional<SdpAudioFormat>(
-          SdpAudioFormat("telephone-event", 32000, 1));
-    case NetEqDecoder::kDecoderAVT48kHz:
-      return rtc::Optional<SdpAudioFormat>(
-          SdpAudioFormat("telephone-event", 48000, 1));
-    case NetEqDecoder::kDecoderCNGnb:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("cn", 8000, 1));
-    case NetEqDecoder::kDecoderCNGwb:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("cn", 16000, 1));
-    case NetEqDecoder::kDecoderCNGswb32kHz:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("cn", 32000, 1));
-    case NetEqDecoder::kDecoderCNGswb48kHz:
-      return rtc::Optional<SdpAudioFormat>(SdpAudioFormat("cn", 48000, 1));
-    default:
-      return rtc::Optional<SdpAudioFormat>();
-  }
-}
-
 rtc::Optional<RentACodec::CodecId> RentACodec::CodecIdByParams(
     const char* payload_name,
     int sampling_freq_hz,
diff --git a/webrtc/modules/audio_coding/acm2/rent_a_codec.h b/webrtc/modules/audio_coding/acm2/rent_a_codec.h
index 069e1d5..0a52f56 100644
--- a/webrtc/modules/audio_coding/acm2/rent_a_codec.h
+++ b/webrtc/modules/audio_coding/acm2/rent_a_codec.h
@@ -16,13 +16,13 @@
 #include <memory>
 
 #include "webrtc/api/audio_codecs/audio_decoder.h"
-#include "webrtc/api/audio_codecs/audio_format.h"
 #include "webrtc/base/array_view.h"
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/optional.h"
 #include "webrtc/base/scoped_ref_ptr.h"
 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h"
 #include "webrtc/modules/audio_coding/include/audio_coding_module_typedefs.h"
+#include "webrtc/modules/audio_coding/neteq/neteq_decoder_enum.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
@@ -109,42 +109,6 @@
     kNone = -1
   };
 
-  enum class NetEqDecoder {
-    kDecoderPCMu,
-    kDecoderPCMa,
-    kDecoderPCMu_2ch,
-    kDecoderPCMa_2ch,
-    kDecoderILBC,
-    kDecoderISAC,
-    kDecoderISACswb,
-    kDecoderPCM16B,
-    kDecoderPCM16Bwb,
-    kDecoderPCM16Bswb32kHz,
-    kDecoderPCM16Bswb48kHz,
-    kDecoderPCM16B_2ch,
-    kDecoderPCM16Bwb_2ch,
-    kDecoderPCM16Bswb32kHz_2ch,
-    kDecoderPCM16Bswb48kHz_2ch,
-    kDecoderPCM16B_5ch,
-    kDecoderG722,
-    kDecoderG722_2ch,
-    kDecoderRED,
-    kDecoderAVT,
-    kDecoderAVT16kHz,
-    kDecoderAVT32kHz,
-    kDecoderAVT48kHz,
-    kDecoderCNGnb,
-    kDecoderCNGwb,
-    kDecoderCNGswb32kHz,
-    kDecoderCNGswb48kHz,
-    kDecoderArbitrary,
-    kDecoderOpus,
-    kDecoderOpus_2ch,
-  };
-
-  static rtc::Optional<SdpAudioFormat> NetEqDecoderToSdpAudioFormat(
-      NetEqDecoder nd);
-
   static inline size_t NumberOfCodecs() {
     return static_cast<size_t>(CodecId::kNumCodecs);
   }