Introduce NetEqFactory::Create taking Environment instead of the Clock

To propagate field trials into the NetEq and further towards Audio Decoders

Bug: webrtc:356878416
Change-Id: Ia7cf18451aef70441ca958bf652f492138c6051a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/358620
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42739}

api/neteq/BUILD.gn

@@ -21,9 +21,11 @@ rtc_source_set("neteq_api") {
     "..:rtp_headers",
     "..:rtp_packet_info",
     "..:scoped_refptr",
+    "../../rtc_base:checks",
     "../../rtc_base:stringutils",
     "../../system_wrappers:system_wrappers",
     "../audio_codecs:audio_codecs_api",
+    "../environment",
     "../units:timestamp",
     "//third_party/abseil-cpp/absl/types:optional",
   ]

api/neteq/neteq_factory.h

@@ -14,7 +14,10 @@
 #include <memory>
 
 #include "api/audio_codecs/audio_decoder_factory.h"
+#include "api/environment/environment.h"
 #include "api/neteq/neteq.h"
+#include "api/scoped_refptr.h"
+#include "rtc_base/checks.h"
 #include "system_wrappers/include/clock.h"
 
 namespace webrtc {
@@ -27,10 +30,21 @@ class NetEqFactory {
   // Creates a new NetEq object, with parameters set in `config`. The `config`
   // object will only have to be valid for the duration of the call to this
   // method.
+  virtual std::unique_ptr<NetEq> Create(
+      const Environment& env,
+      const NetEq::Config& config,
+      scoped_refptr<AudioDecoderFactory> decoder_factory) const {
+    return CreateNetEq(config, decoder_factory, &env.clock());
+  }
+
   virtual std::unique_ptr<NetEq> CreateNetEq(
       const NetEq::Config& config,
       const rtc::scoped_refptr<AudioDecoderFactory>& decoder_factory,
-      Clock* clock) const = 0;
+      Clock* clock) const {
+    // TODO: b/356878416 - Delete this function when all callers are migrated
+    // to `Create` function above.
+    RTC_CHECK_NOTREACHED();
+  }
 };
 
 }  // namespace webrtc

modules/audio_coding/acm2/acm_receiver.cc

@@ -39,12 +39,12 @@ namespace {
 std::unique_ptr<NetEq> CreateNetEq(
     NetEqFactory* neteq_factory,
     const NetEq::Config& config,
-    Clock* clock,
-    const rtc::scoped_refptr<AudioDecoderFactory>& decoder_factory) {
+    const Environment& env,
+    scoped_refptr<AudioDecoderFactory> decoder_factory) {
   if (neteq_factory) {
-    return neteq_factory->CreateNetEq(config, decoder_factory, clock);
+    return neteq_factory->Create(env, config, std::move(decoder_factory));
   }
-  return DefaultNetEqFactory().CreateNetEq(config, decoder_factory, clock);
+  return DefaultNetEqFactory().Create(env, config, std::move(decoder_factory));
 }
 
 }  // namespace
@@ -60,8 +60,8 @@ AcmReceiver::AcmReceiver(const Environment& env, Config config)
     : env_(env),
       neteq_(CreateNetEq(config.neteq_factory,
                          config.neteq_config,
-                         &env_.clock(),
-                         config.decoder_factory)),
+                         env_,
+                         std::move(config.decoder_factory))),
       resampled_last_output_frame_(true) {
   ClearSamples(last_audio_buffer_);
 }