Add missing functions to video devices w/ mixer.

Bug: 80048435
Test: User EQ on video device w/ mixer
Change-Id: Iccd7ffb26e1cc75fbc79ec0bb1db04dc6551ee08
Reviewed-on: https://chromium-review.googlesource.com/1159694
Commit-Queue: Benjamin Shaya <bshaya@chromium.org>
Reviewed-by: Kenneth MacKay <kmackay@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580680}

chromecast/media/cma/backend/BUILD.gn

@@ -184,6 +184,7 @@ cast_source_set("for_mixer_audio") {
     "audio_output_redirector.h",
     "buffering_mixer_source.cc",
     "buffering_mixer_source.h",
+    "cast_media_shlib_mixer_audio.cc",
     "direct_mixer_source.cc",
     "direct_mixer_source.h",
     "filter_group.cc",

chromecast/media/cma/backend/alsa/cast_media_shlib.cc

@@ -190,23 +190,5 @@ bool CastMediaShlib::SupportsMediaClockRateChange() {
   return g_rate_offset_element != nullptr;
 }
 
-void CastMediaShlib::AddLoopbackAudioObserver(LoopbackAudioObserver* observer) {
-  StreamMixer::Get()->AddLoopbackAudioObserver(observer);
-}
-
-void CastMediaShlib::RemoveLoopbackAudioObserver(
-    LoopbackAudioObserver* observer) {
-  StreamMixer::Get()->RemoveLoopbackAudioObserver(observer);
-}
-
-void CastMediaShlib::ResetPostProcessors() {
-  StreamMixer::Get()->ResetPostProcessors();
-}
-
-void CastMediaShlib::SetPostProcessorConfig(const std::string& name,
-                                            const std::string& config) {
-  StreamMixer::Get()->SetPostProcessorConfig(name, config);
-}
-
 }  // namespace media
 }  // namespace chromecast

chromecast/media/cma/backend/cast_media_shlib_mixer_audio.cc

+// Copyright 2018 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.
+
+// Provides CastMediaShlib functions common to all devices using StreamMixer.
+
+#include "chromecast/public/cast_media_shlib.h"
+
+#include <string>
+
+#include "chromecast/media/cma/backend/stream_mixer.h"
+
+namespace chromecast {
+namespace media {
+
+void CastMediaShlib::AddLoopbackAudioObserver(LoopbackAudioObserver* observer) {
+  StreamMixer::Get()->AddLoopbackAudioObserver(observer);
+}
+
+void CastMediaShlib::RemoveLoopbackAudioObserver(
+    LoopbackAudioObserver* observer) {
+  StreamMixer::Get()->RemoveLoopbackAudioObserver(observer);
+}
+
+void CastMediaShlib::ResetPostProcessors() {
+  StreamMixer::Get()->ResetPostProcessors();
+}
+
+void CastMediaShlib::SetPostProcessorConfig(const std::string& name,
+                                            const std::string& config) {
+  StreamMixer::Get()->SetPostProcessorConfig(name, config);
+}
+
+}  // namespace media
+}  // namespace chromecast

chromecast/media/cma/backend/video/cast_media_shlib_common.cc

@@ -24,14 +24,5 @@ bool MediaCapabilitiesShlib::IsSupportedAudioConfig(const AudioConfig& config) {
   return false;
 }
 
-void CastMediaShlib::AddLoopbackAudioObserver(LoopbackAudioObserver* observer) {
-  StreamMixer::Get()->AddLoopbackAudioObserver(observer);
-}
-
-void CastMediaShlib::RemoveLoopbackAudioObserver(
-    LoopbackAudioObserver* observer) {
-  StreamMixer::Get()->RemoveLoopbackAudioObserver(observer);
-}
-
 }  // namespace media
 }  // namespace chromecast