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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 SERVICES_MEDIA_FRAMEWORK_LPCM_UTIL_H_ | 5 #ifndef SERVICES_MEDIA_FRAMEWORK_LPCM_UTIL_H_ |
| 6 #define SERVICES_MEDIA_FRAMEWORK_LPCM_UTIL_H_ | 6 #define SERVICES_MEDIA_FRAMEWORK_LPCM_UTIL_H_ |
| 7 | 7 |
| 8 #include <memory> | 8 #include <memory> |
| 9 | 9 |
| 10 #include "services/media/framework/stream_type.h" | 10 #include "services/media/framework/stream_type.h" |
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| 26 virtual void Copy(const void* in, void* out, size_t frame_count) const = 0; | 26 virtual void Copy(const void* in, void* out, size_t frame_count) const = 0; |
| 27 | 27 |
| 28 // Mixes samples. | 28 // Mixes samples. |
| 29 virtual void Mix(const void* in, void* out, size_t frame_count) const = 0; | 29 virtual void Mix(const void* in, void* out, size_t frame_count) const = 0; |
| 30 | 30 |
| 31 // Interleaves non-interleaved samples. This assumes ffmpeg non-interleaved | 31 // Interleaves non-interleaved samples. This assumes ffmpeg non-interleaved |
| 32 // ("planar") layout, in which the buffer (in) is divided evenly into a | 32 // ("planar") layout, in which the buffer (in) is divided evenly into a |
| 33 // channel buffer per channel. The samples for each channel are contiguous | 33 // channel buffer per channel. The samples for each channel are contiguous |
| 34 // in the respective channel buffer with possible empty space at the end | 34 // in the respective channel buffer with possible empty space at the end |
| 35 // (hence the in_type_count and the frame_count). | 35 // (hence the in_type_count and the frame_count). |
| 36 virtual void Interleave( | 36 virtual void Interleave(const void* in, |
| 37 const void* in, | 37 size_t in_byte_count, |
| 38 size_t in_byte_count, | 38 void* out, |
| 39 void* out, | 39 size_t frame_count) const = 0; |
| 40 size_t frame_count) const = 0; | |
| 41 }; | 40 }; |
| 42 | 41 |
| 43 } // namespace media | 42 } // namespace media |
| 44 } // namespace mojo | 43 } // namespace mojo |
| 45 | 44 |
| 46 #endif // SERVICES_MEDIA_FRAMEWORK_LPCM_UTIL_H_ | 45 #endif // SERVICES_MEDIA_FRAMEWORK_LPCM_UTIL_H_ |
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