content/browser/media/android/browser_demuxer_android.h

   1 // Copyright 2013 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 CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_DEMUXER_ANDROID_H_
   6 #define CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_DEMUXER_ANDROID_H_
   7
   8 #include "base/id_map.h"
   9 #include "content/public/browser/browser_message_filter.h"
  10 #include "media/base/android/demuxer_android.h"
  11
  12 namespace content {
  13
  14 // Represents the browser process half of an IPC-based demuxer proxy.
  15 // It vends out media::DemuxerAndroid instances that are registered with an
  16 // end point in the renderer process.
  17 //
  18 // Refer to RendererDemuxerAndroid for the renderer process half.
  19 class CONTENT_EXPORT BrowserDemuxerAndroid : public BrowserMessageFilter {
  20  public:
  21   BrowserDemuxerAndroid();
  22
  23   // BrowserMessageFilter overrides.
  24   virtual void OverrideThreadForMessage(const IPC::Message& message,
  25                                         BrowserThread::ID* thread) OVERRIDE;
  26   virtual bool OnMessageReceived(const IPC::Message& message,
  27                                  bool* message_was_ok) OVERRIDE;
  28
  29   // Returns an uninitialized demuxer implementation associated with
  30   // |demuxer_client_id|, which can be used to communicate with the real demuxer
  31   // in the renderer process.
  32   scoped_ptr<media::DemuxerAndroid> CreateDemuxer(int demuxer_client_id);
  33
  34  protected:
  35   friend class base::RefCountedThreadSafe<BrowserDemuxerAndroid>;
  36   virtual ~BrowserDemuxerAndroid();
  37
  38  private:
  39   class Internal;
  40
  41   // Called by internal demuxer implementations to add/remove a client
  42   // association.
  43   void AddDemuxerClient(int demuxer_client_id,
  44                         media::DemuxerAndroidClient* client);
  45   void RemoveDemuxerClient(int demuxer_client_id);
  46
  47   // IPC message handlers.
  48   void OnDemuxerReady(int demuxer_client_id,
  49                       const media::DemuxerConfigs& configs);
  50   void OnReadFromDemuxerAck(int demuxer_client_id,
  51                             const media::DemuxerData& data);
  52   void OnDemuxerSeekDone(int demuxer_client_id,
  53                          const base::TimeDelta& actual_browser_seek_time);
  54   void OnDurationChanged(int demuxer_client_id,
  55                          const base::TimeDelta& duration);
  56
  57   IDMap<media::DemuxerAndroidClient> demuxer_clients_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(BrowserDemuxerAndroid);
  60 };
  61
  62 }  // namespace content
  63
  64 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_DEMUXER_ANDROID_H_