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Side by Side Diff: chrome/browser/renderer_host/audio_sync_reader.h

Issue 6532073: Move core pieces of browser\renderer_host to src\content. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 9 years, 10 months ago
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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_H_ 5 #ifndef CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_H_
6 #define CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_H_ 6 #define CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/file_descriptor_posix.h" 9 // TODO(jam): remove this file when all files have been converted.
10 #include "base/process.h" 10 #include "content/browser/renderer_host/audio_sync_reader.h"
11 #include "base/sync_socket.h"
12 #include "media/audio/audio_output_controller.h"
13
14 namespace base {
15
16 class SharedMemory;
17
18 }
19
20 // A AudioOutputController::SyncReader implementation using SyncSocket. This
21 // is used by AudioOutputController to provide a low latency data source for
22 // transmitting audio packets between the browser process and the renderer
23 // process.
24 class AudioSyncReader : public media::AudioOutputController::SyncReader {
25 public:
26 explicit AudioSyncReader(base::SharedMemory* shared_memory);
27
28 virtual ~AudioSyncReader();
29
30 // media::AudioOutputController::SyncReader implementations.
31 virtual void UpdatePendingBytes(uint32 bytes);
32 virtual uint32 Read(void* data, uint32 size);
33 virtual void Close();
34
35 bool Init();
36 bool PrepareForeignSocketHandle(base::ProcessHandle process_handle,
37 #if defined(OS_WIN)
38 base::SyncSocket::Handle* foreign_handle);
39 #else
40 base::FileDescriptor* foreign_handle);
41 #endif
42
43 private:
44 base::SharedMemory* shared_memory_;
45
46 // A pair of SyncSocket for transmitting audio data.
47 scoped_ptr<base::SyncSocket> socket_;
48
49 // SyncSocket to be used by the renderer. The reference is released after
50 // PrepareForeignSocketHandle() is called and ran successfully.
51 scoped_ptr<base::SyncSocket> foreign_socket_;
52
53 DISALLOW_COPY_AND_ASSIGN(AudioSyncReader);
54 };
55 11
56 #endif // CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_H_ 12 #endif // CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_H_
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