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| 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 #include "media/base/android/webaudio_media_codec_bridge.h" | 5 #include "media/base/android/webaudio_media_codec_bridge.h" |
| 6 | 6 |
| 7 #include <errno.h> | 7 #include <errno.h> |
| 8 #include <fcntl.h> | 8 #include <fcntl.h> |
| 9 #include <string.h> | 9 #include <string.h> |
| 10 #include <sys/stat.h> | 10 #include <sys/stat.h> |
| 11 #include <sys/types.h> | 11 #include <sys/types.h> |
| 12 #include <unistd.h> | 12 #include <unistd.h> |
| 13 #include <vector> | 13 #include <vector> |
| 14 | 14 |
| 15 #include "base/android/jni_android.h" | 15 #include "base/android/jni_android.h" |
| 16 #include "base/android/jni_array.h" | 16 #include "base/android/jni_array.h" |
| 17 #include "base/android/jni_string.h" | 17 #include "base/android/jni_string.h" |
| 18 #include "base/basictypes.h" | 18 #include "base/basictypes.h" |
| 19 #include "base/files/scoped_file.h" | 19 #include "base/files/scoped_file.h" |
| 20 #include "base/logging.h" | 20 #include "base/logging.h" |
| 21 #include "base/posix/eintr_wrapper.h" | 21 #include "base/posix/eintr_wrapper.h" |
| 22 #include "base/stl_util.h" | |
| 23 #include "jni/WebAudioMediaCodecBridge_jni.h" | 22 #include "jni/WebAudioMediaCodecBridge_jni.h" |
| 24 #include "media/base/android/webaudio_media_codec_info.h" | 23 #include "media/base/android/webaudio_media_codec_info.h" |
| 25 | 24 |
| 26 | 25 |
| 27 using base::android::AttachCurrentThread; | 26 using base::android::AttachCurrentThread; |
| 28 | 27 |
| 29 namespace media { | 28 namespace media { |
| 30 | 29 |
| 31 void WebAudioMediaCodecBridge::RunWebAudioMediaCodec( | 30 void WebAudioMediaCodecBridge::RunWebAudioMediaCodec( |
| 32 base::SharedMemoryHandle encoded_audio_handle, | 31 base::SharedMemoryHandle encoded_audio_handle, |
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| 172 // the number of channels in the file, only send one channel (the | 171 // the number of channels in the file, only send one channel (the |
| 173 // first). | 172 // first). |
| 174 int16_t* data = static_cast<int16_t*>(env->GetDirectBufferAddress(buf)); | 173 int16_t* data = static_cast<int16_t*>(env->GetDirectBufferAddress(buf)); |
| 175 int frame_count = buf_size / sizeof(*data) / 2; | 174 int frame_count = buf_size / sizeof(*data) / 2; |
| 176 | 175 |
| 177 decoded_data.resize(frame_count); | 176 decoded_data.resize(frame_count); |
| 178 for (int k = 0; k < frame_count; ++k) { | 177 for (int k = 0; k < frame_count; ++k) { |
| 179 decoded_data[k] = *data; | 178 decoded_data[k] = *data; |
| 180 data += 2; | 179 data += 2; |
| 181 } | 180 } |
| 182 buffer = reinterpret_cast<int8_t*>(vector_as_array(&decoded_data)); | 181 buffer = reinterpret_cast<int8_t*>(decoded_data.data()); |
| 183 DCHECK(buffer); | 182 DCHECK(buffer); |
| 184 count = frame_count * sizeof(*data); | 183 count = frame_count * sizeof(*data); |
| 185 } | 184 } |
| 186 | 185 |
| 187 // Write out the data to the pipe in small chunks if necessary. | 186 // Write out the data to the pipe in small chunks if necessary. |
| 188 while (count > 0) { | 187 while (count > 0) { |
| 189 int bytes_to_write = (count >= PIPE_BUF) ? PIPE_BUF : count; | 188 int bytes_to_write = (count >= PIPE_BUF) ? PIPE_BUF : count; |
| 190 ssize_t bytes_written = HANDLE_EINTR(write(pcm_output_, | 189 ssize_t bytes_written = HANDLE_EINTR(write(pcm_output_, |
| 191 buffer, | 190 buffer, |
| 192 bytes_to_write)); | 191 bytes_to_write)); |
| 193 if (bytes_written == -1) | 192 if (bytes_written == -1) |
| 194 break; | 193 break; |
| 195 count -= bytes_written; | 194 count -= bytes_written; |
| 196 buffer += bytes_written; | 195 buffer += bytes_written; |
| 197 } | 196 } |
| 198 } | 197 } |
| 199 | 198 |
| 200 bool WebAudioMediaCodecBridge::RegisterWebAudioMediaCodecBridge(JNIEnv* env) { | 199 bool WebAudioMediaCodecBridge::RegisterWebAudioMediaCodecBridge(JNIEnv* env) { |
| 201 return RegisterNativesImpl(env); | 200 return RegisterNativesImpl(env); |
| 202 } | 201 } |
| 203 | 202 |
| 204 } // namespace | 203 } // namespace |
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