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content / browser / media / android / media_player_renderer.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_BROWSER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_H_
#define CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_H_
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "base/unguessable_token.h"
#include "content/common/content_export.h"
#include "content/public/browser/render_frame_host.h"
#include "media/base/android/media_player_bridge.h"
#include "media/base/media_log.h"
#include "media/base/media_resource.h"
#include "media/base/renderer.h"
#include "media/base/renderer_client.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"
#include "url/gurl.h"
namespace content {
class WebContents;
class MediaPlayerRendererWebContentsObserver;
// MediaPlayerRenderer bridges the media::Renderer and Android MediaPlayer
// interfaces. It owns a MediaPlayerBridge, which exposes c++ methods to call
// into a native Android MediaPlayer.
//
// Each MediaPlayerRenderer is associated with one MediaPlayerRendererClient,
// living in WMPI in the Renderer process.
class CONTENT_EXPORT MediaPlayerRenderer
: public media::Renderer,
public media::mojom::MediaPlayerRendererExtension,
public media::MediaPlayerBridge::Client {
public:
using RendererExtension = media::mojom::MediaPlayerRendererExtension;
using ClientExtension = media::mojom::MediaPlayerRendererClientExtension;
// Permits embedders to handle custom urls.
static void RegisterMediaUrlInterceptor(
media::MediaUrlInterceptor* media_url_interceptor);
MediaPlayerRenderer(
int process_id,
int routing_id,
WebContents* web_contents,
mojo::PendingReceiver<RendererExtension> renderer_extension_receiver,
mojo::PendingRemote<ClientExtension> client_extension_remote);
MediaPlayerRenderer(const MediaPlayerRenderer&) = delete;
MediaPlayerRenderer& operator=(const MediaPlayerRenderer&) = delete;
~MediaPlayerRenderer() override;
// media::Renderer implementation
void Initialize(media::MediaResource* media_resource,
media::RendererClient* client,
media::PipelineStatusCallback init_cb) override;
void SetLatencyHint(std::optional<base::TimeDelta> latency_hint) override;
void Flush(base::OnceClosure flush_cb) override;
void StartPlayingFrom(base::TimeDelta time) override;
// N.B: MediaPlayerBridge doesn't support variable playback rates (but it
// could be exposed from MediaPlayer in the future). For the moment:
// - If |playback_rate| is 0, we pause the video.
// - For other |playback_rate| values, we start playing at 1x speed.
void SetPlaybackRate(double playback_rate) override;
void SetVolume(float volume) override;
base::TimeDelta GetMediaTime() override;
media::RendererType GetRendererType() override;
// media::MediaPlayerBridge::Client implementation
media::MediaResourceGetter* GetMediaResourceGetter() override;
media::MediaUrlInterceptor* GetMediaUrlInterceptor() override;
void OnMediaDurationChanged(base::TimeDelta duration) override;
void OnPlaybackComplete() override;
void OnError(int error) override;
void OnVideoSizeChanged(int width, int height) override;
void OnUpdateAudioMutingState(bool muted);
void OnWebContentsDestroyed();
// media::mojom::MediaPlayerRendererExtension implementation.
//
// Registers a request in the content::ScopedSurfaceRequestManager, and
// returns the token associated to the request. The token can then be used to
// complete the request via the gpu::ScopedSurfaceRequestConduit.
// A completed request will call back to OnScopedSurfaceRequestCompleted().
//
// NOTE: If a request is already pending, calling this method again will
// safely cancel the pending request before registering a new one.
void InitiateScopedSurfaceRequest(
InitiateScopedSurfaceRequestCallback callback) override;
void OnScopedSurfaceRequestCompleted(gl::ScopedJavaSurface surface);
private:
void CreateMediaPlayer(const media::MediaUrlParams& params,
media::PipelineStatusCallback init_cb);
// Cancels the pending request started by InitiateScopedSurfaceRequest(), if
// it exists. No-ops otherwise.
void CancelScopedSurfaceRequest();
void UpdateVolume();
mojo::Remote<ClientExtension> client_extension_;
// Identifiers to find the RenderFrameHost that created |this|.
// NOTE: We store these IDs rather than a RenderFrameHost* because we do not
// know when the RenderFrameHost is destroyed.
int render_process_id_;
int routing_id_;
raw_ptr<media::RendererClient> renderer_client_;
std::unique_ptr<media::MediaPlayerBridge> media_player_;
// Current duration of the media.
base::TimeDelta duration_;
// Indicates if a serious error has been encountered by the |media_player_|.
bool has_error_;
gfx::Size video_size_;
base::UnguessableToken surface_request_token_;
std::unique_ptr<media::MediaResourceGetter> media_resource_getter_;
bool web_contents_muted_;
raw_ptr<MediaPlayerRendererWebContentsObserver> web_contents_observer_;
float volume_;
mojo::Receiver<MediaPlayerRendererExtension> renderer_extension_receiver_;
// NOTE: Weak pointers must be invalidated before all other member variables.
base::WeakPtrFactory<MediaPlayerRenderer> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_H_