Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(232)

Side by Side Diff: content/browser/speech/audio_buffer.h

Issue 1549113002: Switch to standard integer types in content/browser/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebase Created 4 years, 12 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « content/browser/site_per_process_browsertest.cc ('k') | content/browser/speech/audio_buffer.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 CONTENT_BROWSER_SPEECH_AUDIO_BUFFER_H_ 5 #ifndef CONTENT_BROWSER_SPEECH_AUDIO_BUFFER_H_
6 #define CONTENT_BROWSER_SPEECH_AUDIO_BUFFER_H_ 6 #define CONTENT_BROWSER_SPEECH_AUDIO_BUFFER_H_
7 7
8 #include <stddef.h>
9 #include <stdint.h>
10
8 #include <deque> 11 #include <deque>
9 #include <string> 12 #include <string>
10 13
11 #include "base/basictypes.h" 14 #include "base/macros.h"
12 #include "base/memory/ref_counted.h" 15 #include "base/memory/ref_counted.h"
13 #include "content/common/content_export.h" 16 #include "content/common/content_export.h"
14 17
15 namespace content { 18 namespace content {
16 19
17 // Models a chunk derived from an AudioBuffer. 20 // Models a chunk derived from an AudioBuffer.
18 class CONTENT_EXPORT AudioChunk : 21 class CONTENT_EXPORT AudioChunk :
19 public base::RefCountedThreadSafe<AudioChunk> { 22 public base::RefCountedThreadSafe<AudioChunk> {
20 public: 23 public:
21 explicit AudioChunk(int bytes_per_sample); 24 explicit AudioChunk(int bytes_per_sample);
22 // Creates a chunk of |length| bytes, initialized to zeros. 25 // Creates a chunk of |length| bytes, initialized to zeros.
23 AudioChunk(size_t length, int bytes_per_sample); 26 AudioChunk(size_t length, int bytes_per_sample);
24 AudioChunk(const uint8* data, size_t length, int bytes_per_sample); 27 AudioChunk(const uint8_t* data, size_t length, int bytes_per_sample);
25 28
26 bool IsEmpty() const; 29 bool IsEmpty() const;
27 int bytes_per_sample() const { return bytes_per_sample_; } 30 int bytes_per_sample() const { return bytes_per_sample_; }
28 size_t NumSamples() const; 31 size_t NumSamples() const;
29 const std::string& AsString() const; 32 const std::string& AsString() const;
30 int16 GetSample16(size_t index) const; 33 int16_t GetSample16(size_t index) const;
31 const int16* SamplesData16() const; 34 const int16_t* SamplesData16() const;
32 uint8* writable_data() { return reinterpret_cast<uint8*>(&data_string_[0]); } 35 uint8_t* writable_data() {
36 return reinterpret_cast<uint8_t*>(&data_string_[0]);
37 }
33 38
34 private: 39 private:
35 friend class base::RefCountedThreadSafe<AudioChunk>; 40 friend class base::RefCountedThreadSafe<AudioChunk>;
36 ~AudioChunk() {} 41 ~AudioChunk() {}
37 42
38 std::string data_string_; 43 std::string data_string_;
39 const int bytes_per_sample_; 44 const int bytes_per_sample_;
40 45
41 DISALLOW_COPY_AND_ASSIGN(AudioChunk); 46 DISALLOW_COPY_AND_ASSIGN(AudioChunk);
42 }; 47 };
43 48
44 // Models an audio buffer. The current implementation relies on on-demand 49 // Models an audio buffer. The current implementation relies on on-demand
45 // allocations of AudioChunk(s) (which uses a string as storage). 50 // allocations of AudioChunk(s) (which uses a string as storage).
46 class AudioBuffer { 51 class AudioBuffer {
47 public: 52 public:
48 explicit AudioBuffer(int bytes_per_sample); 53 explicit AudioBuffer(int bytes_per_sample);
49 ~AudioBuffer(); 54 ~AudioBuffer();
50 55
51 // Enqueues a copy of |length| bytes of |data| buffer. 56 // Enqueues a copy of |length| bytes of |data| buffer.
52 void Enqueue(const uint8* data, size_t length); 57 void Enqueue(const uint8_t* data, size_t length);
53 58
54 // Dequeues, in FIFO order, a single chunk respecting the length of the 59 // Dequeues, in FIFO order, a single chunk respecting the length of the
55 // corresponding Enqueue call (in a nutshell: multiple Enqueue calls followed 60 // corresponding Enqueue call (in a nutshell: multiple Enqueue calls followed
56 // by DequeueSingleChunk calls will return the individual chunks without 61 // by DequeueSingleChunk calls will return the individual chunks without
57 // merging them). 62 // merging them).
58 scoped_refptr<AudioChunk> DequeueSingleChunk(); 63 scoped_refptr<AudioChunk> DequeueSingleChunk();
59 64
60 // Dequeues all previously enqueued chunks, merging them in a single chunk. 65 // Dequeues all previously enqueued chunks, merging them in a single chunk.
61 scoped_refptr<AudioChunk> DequeueAll(); 66 scoped_refptr<AudioChunk> DequeueAll();
62 67
63 // Removes and frees all the enqueued chunks. 68 // Removes and frees all the enqueued chunks.
64 void Clear(); 69 void Clear();
65 70
66 // Checks whether the buffer is empty. 71 // Checks whether the buffer is empty.
67 bool IsEmpty() const; 72 bool IsEmpty() const;
68 73
69 private: 74 private:
70 typedef std::deque<scoped_refptr<AudioChunk> > ChunksContainer; 75 typedef std::deque<scoped_refptr<AudioChunk> > ChunksContainer;
71 ChunksContainer chunks_; 76 ChunksContainer chunks_;
72 const int bytes_per_sample_; 77 const int bytes_per_sample_;
73 78
74 DISALLOW_COPY_AND_ASSIGN(AudioBuffer); 79 DISALLOW_COPY_AND_ASSIGN(AudioBuffer);
75 }; 80 };
76 81
77 } // namespace content 82 } // namespace content
78 83
79 #endif // CONTENT_BROWSER_SPEECH_AUDIO_BUFFER_H_ 84 #endif // CONTENT_BROWSER_SPEECH_AUDIO_BUFFER_H_
OLDNEW
« no previous file with comments | « content/browser/site_per_process_browsertest.cc ('k') | content/browser/speech/audio_buffer.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698