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Issue 651253002: Enforce handle ownership in base::Process (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Add empty line Created 6 years, 2 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 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 "content/renderer/media/android/audio_decoder_android.h" 5 #include "content/renderer/media/android/audio_decoder_android.h"
6 6
7 #include <errno.h> 7 #include <errno.h>
8 #include <fcntl.h> 8 #include <fcntl.h>
9 #include <limits.h> 9 #include <limits.h>
10 #include <sys/mman.h> 10 #include <sys/mman.h>
11 #include <unistd.h> 11 #include <unistd.h>
12 #include <vector> 12 #include <vector>
13 13
14 #include "base/file_descriptor_posix.h" 14 #include "base/file_descriptor_posix.h"
15 #include "base/logging.h" 15 #include "base/logging.h"
16 #include "base/memory/shared_memory.h" 16 #include "base/memory/shared_memory.h"
17 #include "base/posix/eintr_wrapper.h" 17 #include "base/posix/eintr_wrapper.h"
18 #include "base/process/process_handle.h"
18 #include "content/common/view_messages.h" 19 #include "content/common/view_messages.h"
19 #include "media/base/android/webaudio_media_codec_info.h" 20 #include "media/base/android/webaudio_media_codec_info.h"
20 #include "media/base/audio_bus.h" 21 #include "media/base/audio_bus.h"
21 #include "media/base/limits.h" 22 #include "media/base/limits.h"
22 #include "third_party/WebKit/public/platform/WebAudioBus.h" 23 #include "third_party/WebKit/public/platform/WebAudioBus.h"
23 24
24 namespace content { 25 namespace content {
25 26
26 class AudioDecoderIO { 27 class AudioDecoderIO {
27 public: 28 public:
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82 << ": " << strerror(errno); 83 << ": " << strerror(errno);
83 } 84 }
84 } 85 }
85 86
86 bool AudioDecoderIO::IsValid() const { 87 bool AudioDecoderIO::IsValid() const {
87 return read_fd_ >= 0 && write_fd_ >= 0 && 88 return read_fd_ >= 0 && write_fd_ >= 0 &&
88 encoded_shared_memory_.memory(); 89 encoded_shared_memory_.memory();
89 } 90 }
90 91
91 bool AudioDecoderIO::ShareEncodedToProcess(base::SharedMemoryHandle* handle) { 92 bool AudioDecoderIO::ShareEncodedToProcess(base::SharedMemoryHandle* handle) {
92 return encoded_shared_memory_.ShareToProcess( 93 return encoded_shared_memory_.ShareToProcess(base::GetCurrentProcessHandle(),
93 base::Process::Current().handle(), 94 handle);
94 handle);
95 } 95 }
96 96
97 static float ConvertSampleToFloat(int16_t sample) { 97 static float ConvertSampleToFloat(int16_t sample) {
98 const float kMaxScale = 1.0f / std::numeric_limits<int16_t>::max(); 98 const float kMaxScale = 1.0f / std::numeric_limits<int16_t>::max();
99 const float kMinScale = -1.0f / std::numeric_limits<int16_t>::min(); 99 const float kMinScale = -1.0f / std::numeric_limits<int16_t>::min();
100 100
101 return sample * (sample < 0 ? kMinScale : kMaxScale); 101 return sample * (sample < 0 ? kMinScale : kMaxScale);
102 } 102 }
103 103
104 // A basic WAVE file decoder. See 104 // A basic WAVE file decoder. See
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582 BufferAndCopyPcmDataToBus(input_fd, 582 BufferAndCopyPcmDataToBus(input_fd,
583 destination_bus, 583 destination_bus,
584 number_of_channels, 584 number_of_channels,
585 file_sample_rate); 585 file_sample_rate);
586 } 586 }
587 587
588 return true; 588 return true;
589 } 589 }
590 590
591 } // namespace content 591 } // namespace content
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