webkit/media/media_stream_client.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WEBKIT_MEDIA_MEDIA_STREAM_CLIENT_H_
   6 #define WEBKIT_MEDIA_MEDIA_STREAM_CLIENT_H_
   7
   8 #include "base/callback.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "webkit/media/video_frame_provider.h"
  11
  12 class GURL;
  13
  14 namespace webkit_media {
  15
  16 class MediaStreamAudioRenderer;
  17
  18 // Define an interface for media stream client to get some information about
  19 // the media stream.
  20 class MediaStreamClient {
  21  public:
  22   // Check if the |url| is derived from a media stream object.
  23   virtual bool IsMediaStream(const GURL& url) = 0;
  24
  25   virtual scoped_refptr<VideoFrameProvider> GetVideoFrameProvider(
  26       const GURL& url,
  27       const base::Closure& error_cb,
  28       const VideoFrameProvider::RepaintCB& repaint_cb) = 0;
  29
  30   virtual scoped_refptr<MediaStreamAudioRenderer> GetAudioRenderer(
  31       const GURL& url) = 0;
  32
  33  protected:
  34   virtual ~MediaStreamClient() {}
  35 };
  36
  37 }  // namespace webkit_media
  38
  39 #endif  // WEBKIT_MEDIA_MEDIA_STREAM_CLIENT_H_