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   void OverrideThreadForMessage(const IPC::Message& message,
  25                                 BrowserThread::ID* thread) override;
  26   bool OnMessageReceived(const IPC::Message& message) override;
  27
  28   // Returns an uninitialized demuxer implementation associated with
  29   // |demuxer_client_id|, which can be used to communicate with the real demuxer
  30   // in the renderer process.
  31   scoped_ptr<media::DemuxerAndroid> CreateDemuxer(int demuxer_client_id);
  32
  33  protected:
  34   friend class base::RefCountedThreadSafe<BrowserDemuxerAndroid>;
  35   ~BrowserDemuxerAndroid() override;
  36
  37  private:
  38   class Internal;
  39
  40   // Called by internal demuxer implementations to add/remove a client
  41   // association.
  42   void AddDemuxerClient(int demuxer_client_id,
  43                         media::DemuxerAndroidClient* client);
  44   void RemoveDemuxerClient(int demuxer_client_id);
  45
  46   // IPC message handlers.
  47   void OnDemuxerReady(int demuxer_client_id,
  48                       const media::DemuxerConfigs& configs);
  49   void OnReadFromDemuxerAck(int demuxer_client_id,
  50                             const media::DemuxerData& data);
  51   void OnDemuxerSeekDone(int demuxer_client_id,
  52                          const base::TimeDelta& actual_browser_seek_time);
  53   void OnDurationChanged(int demuxer_client_id,
  54                          const base::TimeDelta& duration);
  55
  56   IDMap<media::DemuxerAndroidClient> demuxer_clients_;
  57
  58   DISALLOW_COPY_AND_ASSIGN(BrowserDemuxerAndroid);
  59 };
  60
  61 }  // namespace content
  62
  63 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_DEMUXER_ANDROID_H_