Load CMA backend from shared library

chromecast/media/cma/pipeline/av_pipeline_impl.cc

Index: chromecast/media/cma/pipeline/av_pipeline_impl.cc
diff --git a/chromecast/media/cma/pipeline/av_pipeline_impl.cc b/chromecast/media/cma/pipeline/av_pipeline_impl.cc
index ab0a2a75d0c319bc5db3ab5a8f56666c784a361d..d470b061929fa28905b4c424595db7c5e1021419 100644
--- a/chromecast/media/cma/pipeline/av_pipeline_impl.cc
+++ b/chromecast/media/cma/pipeline/av_pipeline_impl.cc
@@ -11,14 +11,18 @@
 #include "base/thread_task_runner_handle.h"
 #include "chromecast/media/base/decrypt_context.h"
 #include "chromecast/media/cdm/browser_cdm_cast.h"
-#include "chromecast/media/cma/backend/media_clock_device.h"
-#include "chromecast/media/cma/backend/media_component_device.h"
 #include "chromecast/media/cma/base/buffering_frame_provider.h"
 #include "chromecast/media/cma/base/buffering_state.h"
+#include "chromecast/media/cma/base/cast_decoder_buffer_impl.h"
 #include "chromecast/media/cma/base/cma_logging.h"
 #include "chromecast/media/cma/base/coded_frame_provider.h"
 #include "chromecast/media/cma/base/decoder_buffer_base.h"
 #include "chromecast/media/cma/pipeline/decrypt_util.h"
+#include "chromecast/media/cma/pipeline/frame_status_cb_impl.h"
+#include "chromecast/media/cma/pipeline/media_component_device_client_impl.h"
+#include "chromecast/public/media/cast_decrypt_config.h"
+#include "chromecast/public/media/media_clock_device.h"
+#include "chromecast/public/media/media_component_device.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/base/buffers.h"
@@ -33,9 +37,8 @@ const int kNoCallbackId = -1;
 
 }  // namespace
 
-AvPipelineImpl::AvPipelineImpl(
-    MediaComponentDevice* media_component_device,
-    const UpdateConfigCB& update_config_cb)
+AvPipelineImpl::AvPipelineImpl(MediaComponentDevice* media_component_device,
+                               const UpdateConfigCB& update_config_cb)
     : update_config_cb_(update_config_cb),
       media_component_device_(media_component_device),
       state_(kUninitialized),
@@ -56,7 +59,7 @@ AvPipelineImpl::AvPipelineImpl(
 
 AvPipelineImpl::~AvPipelineImpl() {
   DCHECK(thread_checker_.CalledOnValidThread());
-  media_component_device_->SetClient(MediaComponentDevice::Client());
+  media_component_device_->SetClient(nullptr);
 
   if (media_keys_ && media_keys_callback_id_ != kNoCallbackId)
     media_keys_->UnregisterPlayer(media_keys_callback_id_);
@@ -93,9 +96,8 @@ bool AvPipelineImpl::Initialize() {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK_EQ(state_, kUninitialized);
 
-  MediaComponentDevice::Client client;
-  client.eos_cb = base::Bind(&AvPipelineImpl::OnEos, weak_this_);
-  media_component_device_->SetClient(client);
+  media_component_device_->SetClient(new MediaComponentDeviceClientImpl(
+      base::Bind(&AvPipelineImpl::OnEos, weak_this_)));
   if (!media_component_device_->SetState(MediaComponentDevice::kStateIdle))
     return false;
 
@@ -110,7 +112,7 @@ bool AvPipelineImpl::StartPlayingFrom(
 
   // Media time where rendering should start
   // and switch to a state where the audio device accepts incoming buffers.
-  if (!media_component_device_->SetStartPts(time) ||
+  if (!media_component_device_->SetStartPts(time.InMicroseconds()) ||
       !media_component_device_->SetState(MediaComponentDevice::kStatePaused)) {
     return false;
   }
@@ -287,10 +289,12 @@ void AvPipelineImpl::ProcessPendingBuffer() {
       buffering_state_->SetMaxRenderingTime(timestamp);
   }
 
+  CastKeySystem key_system =
+      decrypt_context ? decrypt_context->key_system() : KEY_SYSTEM_NONE;
   MediaComponentDevice::FrameStatus status = media_component_device_->PushFrame(
-      decrypt_context,
-      pending_buffer_,
-      base::Bind(&AvPipelineImpl::OnFramePushed, weak_this_));
+      key_system, new CastDecoderBufferImpl(pending_buffer_),
+      new FrameStatusCBImpl(
+          base::Bind(&AvPipelineImpl::OnFramePushed, weak_this_)));
   pending_buffer_ = scoped_refptr<DecoderBufferBase>();
 
   pending_push_ = (status == MediaComponentDevice::kFramePending);
@@ -335,9 +339,8 @@ void AvPipelineImpl::OnFrameBuffered(
   if (!buffering_state_.get())
     return;
 
-  if (!buffer->end_of_stream() &&
-      (buffered_time_ == ::media::kNoTimestamp() ||
-       buffered_time_ < buffer->timestamp())) {
+  if (!buffer->end_of_stream() && (buffered_time_ == ::media::kNoTimestamp() ||
+                                   buffered_time_ < buffer->timestamp())) {
     buffered_time_ = buffer->timestamp();
   }
 
@@ -360,7 +363,7 @@ void AvPipelineImpl::UpdatePlayableFrames() {
     if (non_playable_frame->end_of_stream()) {
       buffering_state_->NotifyEos();
     } else {
-      const ::media::DecryptConfig* decrypt_config =
+      const CastDecryptConfig* decrypt_config =
           non_playable_frame->decrypt_config();
       if (decrypt_config &&
           !(media_keys_ &&