Introduce GpuVideoDecodeAcceleratorFactory.

content/common/gpu/media/video_decode_accelerator_unittest.cc

Index: content/common/gpu/media/video_decode_accelerator_unittest.cc
diff --git a/content/common/gpu/media/video_decode_accelerator_unittest.cc b/content/common/gpu/media/video_decode_accelerator_unittest.cc
index eeb89d1728a9cab03ec2d2bf708fbf97d25b5306..ce88a5484234e73d32433bcfe034a3c401e8274c 100644
--- a/content/common/gpu/media/video_decode_accelerator_unittest.cc
+++ b/content/common/gpu/media/video_decode_accelerator_unittest.cc
@@ -50,6 +50,7 @@
 #include "content/common/gpu/media/rendering_helper.h"
 #include "content/common/gpu/media/video_accelerator_unittest_helpers.h"
 #include "content/public/common/content_switches.h"
+#include "content/public/common/gpu_video_decode_accelerator_factory.h"
 #include "media/filters/h264_parser.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/codec/png_codec.h"
@@ -365,10 +366,6 @@ class GLRenderingVDAClient
   scoped_ptr<media::VideoDecodeAccelerator> CreateV4L2SliceVDA();
   scoped_ptr<media::VideoDecodeAccelerator> CreateVaapiVDA();
 
-  void BindImage(uint32_t client_texture_id,
-                 uint32_t texture_target,
-                 scoped_refptr<gl::GLImage> image);
-
   void SetState(ClientState new_state);
   void FinishInitialization();
   void ReturnPicture(int32_t picture_buffer_id);
@@ -401,8 +398,10 @@ class GLRenderingVDAClient
   int next_bitstream_buffer_id_;
   ClientStateNotification<ClientState>* note_;
   scoped_ptr<VideoDecodeAccelerator> decoder_;
-  scoped_ptr<base::WeakPtrFactory<VideoDecodeAccelerator> >
-      weak_decoder_factory_;
+  base::WeakPtr<VideoDecodeAccelerator> weak_vda_;
+  scoped_ptr<base::WeakPtrFactory<VideoDecodeAccelerator>>
+      weak_vda_ptr_factory_;
+  scoped_ptr<GpuVideoDecodeAcceleratorFactory> vda_factory_;
   int remaining_play_throughs_;
   int reset_after_frame_num_;
   int delete_decoder_state_;
@@ -440,9 +439,22 @@ class GLRenderingVDAClient
 
   int32_t next_picture_buffer_id_;
 
+  base::WeakPtr<GLRenderingVDAClient> weak_this_;
+  base::WeakPtrFactory<GLRenderingVDAClient> weak_this_factory_;
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(GLRenderingVDAClient);
 };
 
+static bool DoNothingReturnTrue() {
+  return true;
+}
+
+static bool DummyBindImage(uint32_t client_texture_id,
+                           uint32_t texture_target,
+                           const scoped_refptr<gl::GLImage>& image) {
+  return true;
+}
+
 GLRenderingVDAClient::GLRenderingVDAClient(
     size_t window_id,
     RenderingHelper* rendering_helper,
@@ -483,7 +495,8 @@ GLRenderingVDAClient::GLRenderingVDAClient(
       delay_reuse_after_frame_num_(delay_reuse_after_frame_num),
       decode_calls_per_second_(decode_calls_per_second),
       render_as_thumbnails_(render_as_thumbnails),
-      next_picture_buffer_id_(1) {
+      next_picture_buffer_id_(1),
+      weak_this_factory_(this) {
   LOG_ASSERT(num_in_flight_decodes > 0);
   LOG_ASSERT(num_play_throughs > 0);
   // |num_in_flight_decodes_| is unsupported if |decode_calls_per_second_| > 0.
@@ -494,6 +507,8 @@ GLRenderingVDAClient::GLRenderingVDAClient(
   profile_ = (profile != media::VIDEO_CODEC_PROFILE_UNKNOWN
                   ? profile
                   : media::H264PROFILE_BASELINE);
+
+  weak_this_ = weak_this_factory_.GetWeakPtr();
 }
 
 GLRenderingVDAClient::~GLRenderingVDAClient() {
@@ -502,111 +517,33 @@ GLRenderingVDAClient::~GLRenderingVDAClient() {
   SetState(CS_DESTROYED);
 }
 
-static bool DoNothingReturnTrue() { return true; }
+void GLRenderingVDAClient::CreateAndStartDecoder() {
+  LOG_ASSERT(decoder_deleted());
+  LOG_ASSERT(!decoder_.get());
 
-scoped_ptr<media::VideoDecodeAccelerator>
-GLRenderingVDAClient::CreateFakeVDA() {
-  scoped_ptr<media::VideoDecodeAccelerator> decoder;
   if (fake_decoder_) {
-    decoder.reset(new FakeVideoDecodeAccelerator(
-        static_cast<gfx::GLContext*> (rendering_helper_->GetGLContextHandle()),
-        frame_size_,
-        base::Bind(&DoNothingReturnTrue)));
-  }
-  return decoder;
-}
-
-scoped_ptr<media::VideoDecodeAccelerator>
-GLRenderingVDAClient::CreateDXVAVDA() {
-  scoped_ptr<media::VideoDecodeAccelerator> decoder;
-#if defined(OS_WIN)
-  if (base::win::GetVersion() >= base::win::VERSION_WIN7)
-    decoder.reset(
-        new DXVAVideoDecodeAccelerator(
-            base::Bind(&DoNothingReturnTrue),
-            rendering_helper_->GetGLContext().get()));
-#endif
-  return decoder;
-}
-
-scoped_ptr<media::VideoDecodeAccelerator>
-GLRenderingVDAClient::CreateV4L2VDA() {
-  scoped_ptr<media::VideoDecodeAccelerator> decoder;
-#if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
-  scoped_refptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kDecoder);
-  if (device.get()) {
-    base::WeakPtr<VideoDecodeAccelerator::Client> weak_client = AsWeakPtr();
-    decoder.reset(new V4L2VideoDecodeAccelerator(
-        static_cast<EGLDisplay>(rendering_helper_->GetGLDisplay()),
-        static_cast<EGLContext>(rendering_helper_->GetGLContextHandle()),
-        weak_client, base::Bind(&DoNothingReturnTrue), device,
-        base::ThreadTaskRunnerHandle::Get()));
-  }
-#endif
-  return decoder;
-}
+    decoder_.reset(new FakeVideoDecodeAccelerator(
+        frame_size_, base::Bind(&DoNothingReturnTrue)));
+  } else {
+    if (!vda_factory_) {
+      vda_factory_ = GpuVideoDecodeAcceleratorFactory::Create(
+          base::Bind(&RenderingHelper::GetGLContext,
+                     base::Unretained(rendering_helper_)),
+          base::Bind(&DoNothingReturnTrue), base::Bind(&DummyBindImage));
+      LOG_ASSERT(vda_factory_);
+    }
 
-scoped_ptr<media::VideoDecodeAccelerator>
-GLRenderingVDAClient::CreateV4L2SliceVDA() {
-  scoped_ptr<media::VideoDecodeAccelerator> decoder;
-#if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
-  scoped_refptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kDecoder);
-  if (device.get()) {
-    base::WeakPtr<VideoDecodeAccelerator::Client> weak_client = AsWeakPtr();
-    decoder.reset(new V4L2SliceVideoDecodeAccelerator(
-        device, static_cast<EGLDisplay>(rendering_helper_->GetGLDisplay()),
-        static_cast<EGLContext>(rendering_helper_->GetGLContextHandle()),
-        weak_client, base::Bind(&DoNothingReturnTrue),
-        base::ThreadTaskRunnerHandle::Get()));
+    VideoDecodeAccelerator::Config config(profile_);
+    decoder_ = vda_factory_->CreateVDA(this, config);
   }
-#endif
-  return decoder;
-}
-
-scoped_ptr<media::VideoDecodeAccelerator>
-GLRenderingVDAClient::CreateVaapiVDA() {
-  scoped_ptr<media::VideoDecodeAccelerator> decoder;
-#if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
-  decoder.reset(new VaapiVideoDecodeAccelerator(
-      base::Bind(&DoNothingReturnTrue),
-      base::Bind(&GLRenderingVDAClient::BindImage, base::Unretained(this))));
-#endif
-  return decoder;
-}
 
-void GLRenderingVDAClient::BindImage(uint32_t client_texture_id,
-                                     uint32_t texture_target,
-                                     scoped_refptr<gl::GLImage> image) {}
+  LOG_ASSERT(decoder_) << "Failed creating a VDA";
 
-void GLRenderingVDAClient::CreateAndStartDecoder() {
-  LOG_ASSERT(decoder_deleted());
-  LOG_ASSERT(!decoder_.get());
-
-  VideoDecodeAccelerator::Client* client = this;
-
-  scoped_ptr<media::VideoDecodeAccelerator> decoders[] = {
-    CreateFakeVDA(),
-    CreateDXVAVDA(),
-    CreateV4L2VDA(),
-    CreateV4L2SliceVDA(),
-    CreateVaapiVDA(),
-  };
+  decoder_->TryInitializeDecodeOnSeparateThread(
+      weak_this_, base::ThreadTaskRunnerHandle::Get());
 
-  for (size_t i = 0; i < arraysize(decoders); ++i) {
-    if (!decoders[i])
-      continue;
-    decoder_ = std::move(decoders[i]);
-    weak_decoder_factory_.reset(
-        new base::WeakPtrFactory<VideoDecodeAccelerator>(decoder_.get()));
-    if (decoder_->Initialize(profile_, client)) {
-      SetState(CS_DECODER_SET);
-      FinishInitialization();
-      return;
-    }
-  }
-  // Decoders are all initialize failed.
-  LOG(ERROR) << "VideoDecodeAccelerator::Initialize() failed";
-  LOG_ASSERT(false);
+  SetState(CS_DECODER_SET);
+  FinishInitialization();
 }
 
 void GLRenderingVDAClient::ProvidePictureBuffers(
@@ -710,10 +647,8 @@ void GLRenderingVDAClient::ReturnPicture(int32_t picture_buffer_id) {
 
   if (num_decoded_frames_ > delay_reuse_after_frame_num_) {
     base::MessageLoop::current()->PostDelayedTask(
-        FROM_HERE,
-        base::Bind(&VideoDecodeAccelerator::ReusePictureBuffer,
-                   weak_decoder_factory_->GetWeakPtr(),
-                   picture_buffer_id),
+        FROM_HERE, base::Bind(&VideoDecodeAccelerator::ReusePictureBuffer,
+                              weak_vda_, picture_buffer_id),
         kReuseDelay);
   } else {
     decoder_->ReusePictureBuffer(picture_buffer_id);
@@ -835,7 +770,7 @@ void GLRenderingVDAClient::FinishInitialization() {
 void GLRenderingVDAClient::DeleteDecoder() {
   if (decoder_deleted())
     return;
-  weak_decoder_factory_.reset();
+  weak_vda_ptr_factory_.reset();
   decoder_.reset();
   STLClearObject(&encoded_data_);
   active_textures_.clear();