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content / renderer / media / android / media_player_renderer_client.h [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_
#define CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_
#include <memory>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "content/common/content_export.h"
#include "media/base/android/stream_texture_wrapper.h"
#include "media/base/media_resource.h"
#include "media/base/renderer.h"
#include "media/base/renderer_client.h"
#include "media/base/video_renderer_sink.h"
#include "media/mojo/clients/mojo_renderer.h"
#include "media/mojo/clients/mojo_renderer_wrapper.h"
#include "media/mojo/mojom/renderer_extensions.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace content {
// MediaPlayerRendererClient lives in Renderer process and mirrors a
// MediaPlayerRenderer living in the Browser process.
//
// It is primarily used as a media::Renderer that forwards calls from WMPI to
// the MediaPlayerRenderer, by inheriting from MojoRendererWrapper.
// It also manages a StreamTexture, and notifies the VideoRendererSink when new
// frames are available.
//
// This class handles all calls on |media_task_runner_|, except for
// OnFrameAvailable(), which is called on |compositor_task_runner_|.
class CONTENT_EXPORT MediaPlayerRendererClient
: public media::mojom::MediaPlayerRendererClientExtension,
public media::MojoRendererWrapper {
public:
using RendererExtention = media::mojom::MediaPlayerRendererExtension;
using ClientExtention = media::mojom::MediaPlayerRendererClientExtension;
MediaPlayerRendererClient(
mojo::PendingRemote<RendererExtention> renderer_extension_remote,
mojo::PendingReceiver<ClientExtention> client_extension_receiver,
scoped_refptr<base::SequencedTaskRunner> media_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner,
std::unique_ptr<media::MojoRenderer> mojo_renderer,
media::ScopedStreamTextureWrapper stream_texture_wrapper,
media::VideoRendererSink* sink);
MediaPlayerRendererClient(const MediaPlayerRendererClient&) = delete;
MediaPlayerRendererClient& operator=(const MediaPlayerRendererClient&) =
delete;
~MediaPlayerRendererClient() override;
// media::Renderer implementation (inherited from media::MojoRendererWrapper).
// We override normal initialization to set up |stream_texture_wrapper_|,
// and do not support encrypted media.
void Initialize(media::MediaResource* media_resource,
media::RendererClient* client,
media::PipelineStatusCallback init_cb) override;
media::RendererType GetRendererType() override;
// media::mojom::MediaPlayerRendererClientExtension implementation
void OnDurationChange(base::TimeDelta duration) override;
void OnVideoSizeChange(const gfx::Size& size) override;
// Called on |compositor_task_runner_| whenever |stream_texture_wrapper_| has
// a new frame.
void OnFrameAvailable();
private:
void OnStreamTextureWrapperInitialized(media::MediaResource* media_resource,
bool success);
void OnRemoteRendererInitialized(media::PipelineStatus status);
void OnScopedSurfaceRequested(const base::UnguessableToken& request_token);
// The underlying type should always be a MediaUrlDemuxer, but we only use
// methods from the MediaResource interface.
raw_ptr<media::MediaResource> media_resource_;
// Owns the StreamTexture whose surface is used by MediaPlayerRenderer.
// Provides the VideoFrames to |sink_|.
media::ScopedStreamTextureWrapper stream_texture_wrapper_;
raw_ptr<media::RendererClient> client_;
raw_ptr<media::VideoRendererSink> sink_;
scoped_refptr<base::SequencedTaskRunner> media_task_runner_;
// Used by |stream_texture_wrapper_| to signal OnFrameAvailable() and to send
// VideoFrames to |sink_| on the right thread.
scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
media::PipelineStatusCallback init_cb_;
// This class is constructed on the main task runner, and used on
// |media_task_runner_|. These member are used to delay calls to Bind() for
// |renderer_extension_ptr_| and |client_extension_binding_|, until we are on
// |media_task_runner_|.
// Both are set in the constructor, and consumed in Initialize().
mojo::PendingReceiver<ClientExtention>
delayed_bind_client_extension_receiver_;
mojo::PendingRemote<RendererExtention>
delayed_bind_renderer_extention_remote_;
// Used to call methods on the MediaPlayerRenderer in the browser process.
mojo::Remote<RendererExtention> renderer_extension_remote_;
// Used to receive events from MediaPlayerRenderer in the browser process.
mojo::Receiver<MediaPlayerRendererClientExtension> client_extension_receiver_{
this};
// NOTE: Weak pointers must be invalidated before all other member variables.
base::WeakPtrFactory<MediaPlayerRendererClient> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_