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Side by Side Diff: media/audio/audio_util.h

Issue 7785013: Fix link error with components build and media.dll. I have no idea why the bots aren't seeing thi... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 9 years, 3 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 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 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 MEDIA_AUDIO_AUDIO_UTIL_H_ 5 #ifndef MEDIA_AUDIO_AUDIO_UTIL_H_
6 #define MEDIA_AUDIO_AUDIO_UTIL_H_ 6 #define MEDIA_AUDIO_AUDIO_UTIL_H_
7 7
8 #include <vector> 8 #include <vector>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
(...skipping 44 matching lines...) Expand 10 before | Expand all | Expand 10 after
55 int channels, 55 int channels,
56 int bytes_per_sample, 56 int bytes_per_sample,
57 float volume); 57 float volume);
58 58
59 // DeinterleaveAudioChannel() takes interleaved audio buffer |source| 59 // DeinterleaveAudioChannel() takes interleaved audio buffer |source|
60 // of the given |sample_fmt| and |number_of_channels| and extracts 60 // of the given |sample_fmt| and |number_of_channels| and extracts
61 // |number_of_frames| data for the given |channel_index| and 61 // |number_of_frames| data for the given |channel_index| and
62 // puts it in the floating point |destination|. 62 // puts it in the floating point |destination|.
63 // It returns |true| on success, or |false| if the |sample_fmt| is 63 // It returns |true| on success, or |false| if the |sample_fmt| is
64 // not recognized. 64 // not recognized.
65 bool DeinterleaveAudioChannel(void* source, 65 MEDIA_EXPORT bool DeinterleaveAudioChannel(void* source,
66 float* destination, 66 float* destination,
67 int channels, 67 int channels,
68 int channel_index, 68 int channel_index,
69 int bytes_per_sample, 69 int bytes_per_sample,
70 size_t number_of_frames); 70 size_t number_of_frames);
71 71
72 // InterleaveFloatToInt16 scales, clips, and interleaves the planar 72 // InterleaveFloatToInt16 scales, clips, and interleaves the planar
73 // floating-point audio contained in |source| to the int16 |destination|. 73 // floating-point audio contained in |source| to the int16 |destination|.
74 // The floating-point data is in a canonical range of -1.0 -> +1.0. 74 // The floating-point data is in a canonical range of -1.0 -> +1.0.
75 // The size of the |source| vector determines the number of channels. 75 // The size of the |source| vector determines the number of channels.
76 // The |destination| buffer is assumed to be large enough to hold the 76 // The |destination| buffer is assumed to be large enough to hold the
77 // result. Thus it must be at least size: number_of_frames * source.size() 77 // result. Thus it must be at least size: number_of_frames * source.size()
78 MEDIA_EXPORT void InterleaveFloatToInt16(const std::vector<float*>& source, 78 MEDIA_EXPORT void InterleaveFloatToInt16(const std::vector<float*>& source,
79 int16* destination, 79 int16* destination,
80 size_t number_of_frames); 80 size_t number_of_frames);
81 81
82 // Returns the default audio hardware sample-rate. 82 // Returns the default audio hardware sample-rate.
83 MEDIA_EXPORT double GetAudioHardwareSampleRate(); 83 MEDIA_EXPORT double GetAudioHardwareSampleRate();
84 84
85 // Functions that handle data buffer passed between processes in the shared 85 // Functions that handle data buffer passed between processes in the shared
86 // memory. Called on both IPC sides. 86 // memory. Called on both IPC sides.
87 87
88 MEDIA_EXPORT uint32 TotalSharedMemorySizeInBytes(uint32 packet_size); 88 MEDIA_EXPORT uint32 TotalSharedMemorySizeInBytes(uint32 packet_size);
89 MEDIA_EXPORT uint32 PacketSizeSizeInBytes(uint32 shared_memory_created_size); 89 MEDIA_EXPORT uint32 PacketSizeSizeInBytes(uint32 shared_memory_created_size);
90 MEDIA_EXPORT uint32 GetActualDataSizeInBytes(base::SharedMemory* shared_memory, 90 MEDIA_EXPORT uint32 GetActualDataSizeInBytes(base::SharedMemory* shared_memory,
91 uint32 shared_memory_size); 91 uint32 shared_memory_size);
92 MEDIA_EXPORT void SetActualDataSizeInBytes(base::SharedMemory* shared_memory, 92 MEDIA_EXPORT void SetActualDataSizeInBytes(base::SharedMemory* shared_memory,
93 uint32 shared_memory_size, 93 uint32 shared_memory_size,
94 uint32 actual_data_size); 94 uint32 actual_data_size);
95 95
96 } // namespace media 96 } // namespace media
97 97
98 #endif // MEDIA_AUDIO_AUDIO_UTIL_H_ 98 #endif // MEDIA_AUDIO_AUDIO_UTIL_H_
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