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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #include <algorithm> | 5 #include <algorithm> |
6 | 6 |
7 #include "media/base/audio_block_fifo.h" | 7 #include "media/base/audio_block_fifo.h" |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 | 10 |
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24 | 24 |
25 void AudioBlockFifo::Push(const void* source, | 25 void AudioBlockFifo::Push(const void* source, |
26 int frames, | 26 int frames, |
27 int bytes_per_sample) { | 27 int bytes_per_sample) { |
28 DCHECK(source); | 28 DCHECK(source); |
29 DCHECK_GT(frames, 0); | 29 DCHECK_GT(frames, 0); |
30 DCHECK_GT(bytes_per_sample, 0); | 30 DCHECK_GT(bytes_per_sample, 0); |
31 DCHECK_LT(available_blocks_, static_cast<int>(audio_blocks_.size())); | 31 DCHECK_LT(available_blocks_, static_cast<int>(audio_blocks_.size())); |
32 CHECK_LE(frames, GetUnfilledFrames()); | 32 CHECK_LE(frames, GetUnfilledFrames()); |
33 | 33 |
34 const uint8* source_ptr = static_cast<const uint8*>(source); | 34 const uint8_t* source_ptr = static_cast<const uint8_t*>(source); |
35 int frames_to_push = frames; | 35 int frames_to_push = frames; |
36 while (frames_to_push) { | 36 while (frames_to_push) { |
37 // Get the current write block. | 37 // Get the current write block. |
38 AudioBus* current_block = audio_blocks_[write_block_]; | 38 AudioBus* current_block = audio_blocks_[write_block_]; |
39 | 39 |
40 // Figure out what segment sizes we need when adding the new content to | 40 // Figure out what segment sizes we need when adding the new content to |
41 // the FIFO. | 41 // the FIFO. |
42 const int push_frames = | 42 const int push_frames = |
43 std::min(block_frames_ - write_pos_, frames_to_push); | 43 std::min(block_frames_ - write_pos_, frames_to_push); |
44 | 44 |
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109 write_block_ += blocks; | 109 write_block_ += blocks; |
110 | 110 |
111 // Update the read pointers correspondingly. | 111 // Update the read pointers correspondingly. |
112 read_block_ += blocks; | 112 read_block_ += blocks; |
113 | 113 |
114 DCHECK_LT(read_block_, static_cast<int>(audio_blocks_.size())); | 114 DCHECK_LT(read_block_, static_cast<int>(audio_blocks_.size())); |
115 DCHECK_LT(write_block_, static_cast<int>(audio_blocks_.size())); | 115 DCHECK_LT(write_block_, static_cast<int>(audio_blocks_.size())); |
116 } | 116 } |
117 | 117 |
118 } // namespace media | 118 } // namespace media |
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