[DO NOT COMMIT] MediaPlayerRenderer using StreamTextures.

media/blink/webmediaplayer_impl.cc

 // Copyright 2013 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.
 
 #include "media/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <string>
@@ skipping 10 matching lines @@
 #include "base/metrics/histogram.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/task_runner_util.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/layers/video_layer.h"
 #include "media/audio/null_audio_sink.h"
+#include "media/base/android/media_url_demuxer.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/base/cdm_context.h"
 #include "media/base/limits.h"
 #include "media/base/media_log.h"
 #include "media/base/media_switches.h"
 #include "media/base/text_renderer.h"
 #include "media/base/timestamp_constants.h"
 #include "media/base/video_frame.h"
 #include "media/blink/texttrack_impl.h"
 #include "media/blink/webaudiosourceprovider_impl.h"
 #include "media/blink/webcontentdecryptionmodule_impl.h"
 #include "media/blink/webinbandtexttrack_impl.h"
 #include "media/blink/webmediaplayer_delegate.h"
 #include "media/blink/webmediaplayer_util.h"
 #include "media/blink/webmediasource_impl.h"
 #include "media/filters/chunk_demuxer.h"
 #include "media/filters/ffmpeg_demuxer.h"
+#include "media/media_features.h"
 #include "third_party/WebKit/public/platform/WebEncryptedMediaTypes.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayerClient.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayerEncryptedMediaClient.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayerSource.h"
 #include "third_party/WebKit/public/platform/WebMediaSource.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebSecurityOrigin.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
@@ skipping 142 matching lines @@
       is_cdm_attached_(false),
 #if defined(OS_ANDROID)  // WMPI_CAST
       cast_impl_(this, client_, params.context_3d_cb()),
 #endif
       volume_(1.0),
       volume_multiplier_(1.0),
       renderer_factory_(std::move(renderer_factory)),
       surface_manager_(params.surface_manager()),
       fullscreen_surface_id_(SurfaceManager::kNoSurfaceID),
       suppress_destruction_errors_(false),
-      can_suspend_state_(CanSuspendState::UNKNOWN) {
+      can_suspend_state_(CanSuspendState::UNKNOWN),
+      use_fallback_path_(false) {
   DCHECK(!adjust_allocated_memory_cb_.is_null());
   DCHECK(renderer_factory_);
   DCHECK(client_);
 
   if (delegate_)
     delegate_id_ = delegate_->AddObserver(this);
 
   media_log_->AddEvent(
       media_log_->CreateEvent(MediaLogEvent::WEBMEDIAPLAYER_CREATED));
 
@@ skipping 788 matching lines @@
     if (pipeline_metadata_.video_rotation == VIDEO_ROTATION_90 ||
         pipeline_metadata_.video_rotation == VIDEO_ROTATION_270) {
       gfx::Size size = pipeline_metadata_.natural_size;
       pipeline_metadata_.natural_size = gfx::Size(size.height(), size.width());
     }
 
     if (fullscreen_ && surface_manager_)
       surface_manager_->NaturalSizeChanged(pipeline_metadata_.natural_size);
 
     DCHECK(!video_weblayer_);
+
     video_weblayer_.reset(new cc_blink::WebLayerImpl(cc::VideoLayer::Create(
         compositor_, pipeline_metadata_.video_rotation)));
+
     video_weblayer_->layer()->SetContentsOpaque(opaque_);
     video_weblayer_->SetContentsOpaqueIsFixed(true);
     client_->setWebLayer(video_weblayer_.get());
   }
 
   UpdatePlayState();
 }
 
 void WebMediaPlayerImpl::OnBufferingStateChange(BufferingState state) {
   DVLOG(1) << __FUNCTION__ << "(" << state << ")";
@@ skipping 212 matching lines @@
   return video_weblayer_->bounds();
 }
 
 void WebMediaPlayerImpl::SetDeviceScaleFactor(float scale_factor) {
   cast_impl_.SetDeviceScaleFactor(scale_factor);
 }
 
 void WebMediaPlayerImpl::setPoster(const blink::WebURL& poster) {
   cast_impl_.setPoster(poster);
 }
+
+void WebMediaPlayerImpl::EnableFallbackMediaPlayer(GURL url) {
+  fallback_url_ = url;
+  use_fallback_path_ = true;
+}
 #endif  // defined(OS_ANDROID)  // WMPI_CAST
 
 void WebMediaPlayerImpl::DataSourceInitialized(bool success) {
   DVLOG(1) << __FUNCTION__;
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
 #if defined(OS_ANDROID)
   // We can't play HLS URLs with WebMediaPlayerImpl, so in cases where they are
   // encountered, instruct the HTML media element to create a new WebMediaPlayer
   // instance with the correct URL to trigger WebMediaPlayerAndroid creation.
@@ skipping 39 matching lines @@
   fullscreen_surface_id_ = surface_id;
   if (!pending_surface_request_cb_.is_null())
     base::ResetAndReturn(&pending_surface_request_cb_).Run(surface_id);
 }
 
 // TODO(watk): Move this state management out of WMPI.
 void WebMediaPlayerImpl::OnSurfaceRequested(
     const SurfaceCreatedCB& surface_created_cb) {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
   DCHECK(surface_manager_);
+  DCHECK(!use_fallback_path_);
 
   // A null callback indicates that the decoder is going away.
   if (surface_created_cb.is_null()) {
     decoder_requires_restart_for_fullscreen_ = false;
     pending_surface_request_cb_.Reset();
     return;
   }
 
   // If we're getting a surface request it means GVD is initializing, so until
   // we get a null surface request, GVD is the active decoder. While that's the
@@ skipping 24 matching lines @@
       media_task_runner_, worker_task_runner_, audio_source_provider_.get(),
       compositor_, request_surface_cb);
 }
 
 void WebMediaPlayerImpl::StartPipeline() {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
   Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb =
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnEncryptedMediaInitData);
 
+  if (use_fallback_path_) {
+    demuxer_.reset(new MediaUrlDemuxer(media_task_runner_, fallback_url_));
+    pipeline_controller_.Start(demuxer_.get(), this, true, true);
+    return;

[Julien Isorce Samsung, 2016/08/08 12:58:01]

Hi, sorry for the short introduction, I was thinking of creating a new
MojoPipelineService but then I saw your solution that re-use MojoRenderer + this
pseudo demuxer that just passes the url. You said that creating a proper service
would have required too much unnecessary refactoring "Removing the Demuxer from
the pipeline when using a MediaPlayer would require a non-trivial amount of
refactoring, that might not be worth it."
So I was wondering if after all this work you are still thinking that there is
no need for a proper MojoPipelineService ?
Nice solution btw !

+  }
+
   // Figure out which demuxer to use.
   if (load_type_ != LoadTypeMediaSource) {
     DCHECK(!chunk_demuxer_);
     DCHECK(data_source_);
 
 #if !defined(MEDIA_DISABLE_FFMPEG)
     Demuxer::MediaTracksUpdatedCB media_tracks_updated_cb =
         BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnFFmpegMediaTracksUpdated);
 
     demuxer_.reset(new FFmpegDemuxer(media_task_runner_, data_source_.get(),
@@ skipping 332 matching lines @@
   if (isRemote())
     return;
 #endif
 
   // Idle timeout chosen arbitrarily.
   background_pause_timer_.Start(FROM_HERE, base::TimeDelta::FromSeconds(5),
                                 this, &WebMediaPlayerImpl::OnPause);
 }
 
 }  // namespace media