Remove most of the media stack.

sky/engine/public/platform/WebMediaPlayer.h

-/*
- * Copyright (C) 2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef WebMediaPlayer_h
-#define WebMediaPlayer_h
-
-#include "WebCanvas.h"
-#include "WebMediaSource.h"
-#include "WebString.h"
-#include "WebTimeRange.h"
-#include "third_party/skia/include/core/SkXfermode.h"
-
-namespace blink {
-
-class WebMediaPlayerClient;
-class WebString;
-class WebURL;
-struct WebRect;
-struct WebSize;
-class WebGraphicsContext3D;
-
-class WebMediaPlayer {
-public:
-    enum NetworkState {
-        NetworkStateEmpty,
-        NetworkStateIdle,
-        NetworkStateLoading,
-        NetworkStateLoaded,
-        NetworkStateFormatError,
-        NetworkStateNetworkError,
-        NetworkStateDecodeError,
-    };
-
-    enum ReadyState {
-        ReadyStateHaveNothing,
-        ReadyStateHaveMetadata,
-        ReadyStateHaveCurrentData,
-        ReadyStateHaveFutureData,
-        ReadyStateHaveEnoughData,
-    };
-
-    enum Preload {
-        PreloadNone,
-        PreloadMetaData,
-        PreloadAuto,
-    };
-
-    // Represents synchronous exceptions that can be thrown from the Encrypted
-    // Media methods. This is different from the asynchronous MediaKeyError.
-    enum MediaKeyException {
-        MediaKeyExceptionNoError,
-        MediaKeyExceptionInvalidPlayerState,
-        MediaKeyExceptionKeySystemNotSupported,
-        MediaKeyExceptionInvalidAccess,
-    };
-
-    enum CORSMode {
-        CORSModeUnspecified,
-        CORSModeAnonymous,
-        CORSModeUseCredentials,
-    };
-
-    enum LoadType {
-        LoadTypeURL,
-        LoadTypeMediaSource,
-    };
-
-    typedef unsigned TrackId;
-
-    virtual ~WebMediaPlayer() { }
-
-    virtual void load(LoadType, const WebURL&, CORSMode) = 0;
-
-    // Playback controls.
-    virtual void play() = 0;
-    virtual void pause() = 0;
-    virtual bool supportsSave() const = 0;
-    virtual void seek(double seconds) = 0;
-    virtual void setRate(double) = 0;
-    virtual void setVolume(double) = 0;
-    virtual void setPreload(Preload) { };
-    virtual WebTimeRanges buffered() const = 0;
-    virtual double maxTimeSeekable() const = 0;
-
-    // True if the loaded media has a playable video/audio track.
-    virtual bool hasVideo() const = 0;
-    virtual bool hasAudio() const = 0;
-
-    // Dimension of the video.
-    virtual WebSize naturalSize() const = 0;
-
-    // Getters of playback state.
-    virtual bool paused() const = 0;
-    virtual bool seeking() const = 0;
-    virtual double duration() const = 0;
-    virtual double currentTime() const = 0;
-
-    // Internal states of loading and network.
-    virtual NetworkState networkState() const = 0;
-    virtual ReadyState readyState() const = 0;
-
-    virtual bool didLoadingProgress() = 0;
-
-    virtual bool didPassCORSAccessCheck() const = 0;
-
-    virtual double mediaTimeForTimeValue(double timeValue) const = 0;
-
-    virtual unsigned decodedFrameCount() const = 0;
-    virtual unsigned droppedFrameCount() const = 0;
-    virtual unsigned corruptedFrameCount() const { return 0; };
-    virtual unsigned audioDecodedByteCount() const = 0;
-    virtual unsigned videoDecodedByteCount() const = 0;
-
-    virtual void paint(WebCanvas*, const WebRect&, unsigned char alpha, SkXfermode::Mode) = 0;
-    // Do a GPU-GPU textures copy if possible.
-    virtual bool copyVideoTextureToPlatformTexture(WebGraphicsContext3D*, unsigned texture, unsigned level, unsigned internalFormat, unsigned type, bool premultiplyAlpha, bool flipY) { return false; }
-
-    // Returns whether keySystem is supported. If true, the result will be
-    // reported by an event.
-    virtual MediaKeyException generateKeyRequest(const WebString& keySystem, const unsigned char* initData, unsigned initDataLength) { return MediaKeyExceptionKeySystemNotSupported; }
-    virtual MediaKeyException addKey(const WebString& keySystem, const unsigned char* key, unsigned keyLength, const unsigned char* initData, unsigned initDataLength, const WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupported; }
-    virtual MediaKeyException cancelKeyRequest(const WebString& keySystem, const WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupported; }
-
-    // Sets the poster image URL.
-    virtual void setPoster(const WebURL& poster) { }
-
-    // Instruct WebMediaPlayer to enter/exit fullscreen.
-    virtual void enterFullscreen() { }
-    // Returns true if the player can enter fullscreen.
-    virtual bool canEnterFullscreen() const { return false; }
-
-    virtual void enabledAudioTracksChanged(const WebVector<TrackId>& enabledTrackIds) { }
-    // |selectedTrackId| is null if no track is selected.
-    virtual void selectedVideoTrackChanged(TrackId* selectedTrackId) { }
-};
-
-} // namespace blink
-
-#endif