content/renderer/media/android/renderer_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_RENDERER_MEDIA_ANDROID_RENDERER_DEMUXER_ANDROID_H_
   6 #define CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_DEMUXER_ANDROID_H_
   7
   8 #include "base/atomic_sequence_num.h"
   9 #include "base/id_map.h"
  10 #include "ipc/message_filter.h"
  11 #include "media/base/android/demuxer_stream_player_params.h"
  12
  13 namespace base {
  14 class SingleThreadTaskRunner;
  15 }
  16
  17 namespace content {
  18
  19 class MediaSourceDelegate;
  20 class ThreadSafeSender;
  21
  22 // Represents the renderer process half of an IPC-based implementation of
  23 // media::DemuxerAndroid.
  24 //
  25 // Refer to BrowserDemuxerAndroid for the browser process half.
  26 class RendererDemuxerAndroid : public IPC::MessageFilter {
  27  public:
  28   RendererDemuxerAndroid();
  29
  30   // Returns the next available demuxer client ID for use in IPC messages.
  31   //
  32   // Safe to call on any thread.
  33   int GetNextDemuxerClientID();
  34
  35   // Associates |delegate| with |demuxer_client_id| for handling incoming IPC
  36   // messages.
  37   //
  38   // Must be called on media thread.
  39   void AddDelegate(int demuxer_client_id, MediaSourceDelegate* delegate);
  40
  41   // Removes the association created by AddDelegate().
  42   //
  43   // Must be called on media thread.
  44   void RemoveDelegate(int demuxer_client_id);
  45
  46   // IPC::MessageFilter overrides.
  47   bool OnMessageReceived(const IPC::Message& message) override;
  48
  49   // media::DemuxerAndroidClient "implementation".
  50   //
  51   // TODO(scherkus): Consider having RendererDemuxerAndroid actually implement
  52   // media::DemuxerAndroidClient and MediaSourceDelegate actually implement
  53   // media::DemuxerAndroid.
  54   void DemuxerReady(int demuxer_client_id,
  55                     const media::DemuxerConfigs& configs);
  56   void ReadFromDemuxerAck(int demuxer_client_id,
  57                           const media::DemuxerData& data);
  58   void DemuxerSeekDone(int demuxer_client_id,
  59                        const base::TimeDelta& actual_browser_seek_time);
  60   void DurationChanged(int demuxer_client_id, const base::TimeDelta& duration);
  61
  62  protected:
  63   friend class base::RefCountedThreadSafe<RendererDemuxerAndroid>;
  64   ~RendererDemuxerAndroid() override;
  65
  66  private:
  67   void DispatchMessage(const IPC::Message& message);
  68   void OnReadFromDemuxer(int demuxer_client_id,
  69                          media::DemuxerStream::Type type);
  70   void OnDemuxerSeekRequest(int demuxer_client_id,
  71                             const base::TimeDelta& time_to_seek,
  72                             bool is_browser_seek);
  73
  74   base::AtomicSequenceNumber next_demuxer_client_id_;
  75
  76   IDMap<MediaSourceDelegate> delegates_;
  77   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
  78   scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
  79
  80   DISALLOW_COPY_AND_ASSIGN(RendererDemuxerAndroid);
  81 };
  82
  83 }  // namespace content
  84
  85 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_DEMUXER_ANDROID_H_