Cast: Flow hw encoder initialization error to extensions API

cast.streaming API will be notified if there is a hardware
initialization error. This way extension can decide whether to restart
with a different codec or just fail.

Also fixed a small issue that Framer is printing too many messages.

BUG=402182

Review URL: https://codereview.chromium.org/555563003

Cr-Commit-Position: refs/heads/master@{#294216}

1 files changed, 17 insertions, 14 deletions

diff --git a/media/cast/cast_sender_impl.cc b/media/cast/cast_sender_impl.cc
index f617ef4..a8d63fe 100644
--- a/media/cast/cast_sender_impl.cc
+++ b/media/cast/cast_sender_impl.cc
@@ -105,7 +105,6 @@ void CastSenderImpl::InitializeAudio(
 
   const CastInitializationStatus status = audio_sender_->InitializationResult();
   if (status == STATUS_AUDIO_INITIALIZED) {
-    ssrc_of_audio_sender_ = audio_config.incoming_feedback_ssrc;
     audio_frame_input_ =
         new LocalAudioFrameInput(cast_environment_, audio_sender_->AsWeakPtr());
   }
@@ -127,19 +126,14 @@ void CastSenderImpl::InitializeVideo(
 
   VLOG(1) << "CastSenderImpl@" << this << "::InitializeVideo()";
 
-  video_sender_.reset(new VideoSender(cast_environment_,
-                                      video_config,
-                                      create_vea_cb,
-                                      create_video_encode_mem_cb,
-                                      transport_sender_));
-
-  const CastInitializationStatus status = video_sender_->InitializationResult();
-  if (status == STATUS_VIDEO_INITIALIZED) {
-    ssrc_of_video_sender_ = video_config.incoming_feedback_ssrc;
-    video_frame_input_ =
-        new LocalVideoFrameInput(cast_environment_, video_sender_->AsWeakPtr());
-  }
-  cast_initialization_cb.Run(status);
+  video_sender_.reset(new VideoSender(
+      cast_environment_,
+      video_config,
+      base::Bind(&CastSenderImpl::OnVideoInitialized,
+                 weak_factory_.GetWeakPtr(), cast_initialization_cb),
+      create_vea_cb,
+      create_video_encode_mem_cb,
+      transport_sender_));
   if (audio_sender_) {
     DCHECK(audio_sender_->GetTargetPlayoutDelay() ==
            video_sender_->GetTargetPlayoutDelay());
@@ -170,5 +164,14 @@ void CastSenderImpl::SetTargetPlayoutDelay(
   }
 }
 
+void CastSenderImpl::OnVideoInitialized(
+    const CastInitializationCallback& initialization_cb,
+    media::cast::CastInitializationStatus result) {
+  DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN));
+  video_frame_input_ =
+      new LocalVideoFrameInput(cast_environment_, video_sender_->AsWeakPtr());
+  initialization_cb.Run(result);
+}
+
 }  // namespace cast
 }  // namespace media