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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 "media/cast/sender/audio_encoder.h" | 5 #include "media/cast/sender/audio_encoder.h" |
6 | 6 |
7 #include <stdint.h> | 7 #include <stdint.h> |
8 | 8 |
9 #include <algorithm> | 9 #include <algorithm> |
10 #include <limits> | 10 #include <limits> |
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285 DCHECK_EQ(audio_bus->channels(), num_channels_); | 285 DCHECK_EQ(audio_bus->channels(), num_channels_); |
286 float* dest = buffer_.get() + (buffer_fill_offset * num_channels_); | 286 float* dest = buffer_.get() + (buffer_fill_offset * num_channels_); |
287 audio_bus->ToInterleavedPartial<Float32SampleTypeTraits>(source_offset, | 287 audio_bus->ToInterleavedPartial<Float32SampleTypeTraits>(source_offset, |
288 num_samples, dest); | 288 num_samples, dest); |
289 } | 289 } |
290 | 290 |
291 bool EncodeFromFilledBuffer(std::string* out) final { | 291 bool EncodeFromFilledBuffer(std::string* out) final { |
292 out->resize(kOpusMaxPayloadSize); | 292 out->resize(kOpusMaxPayloadSize); |
293 const opus_int32 result = opus_encode_float( | 293 const opus_int32 result = opus_encode_float( |
294 opus_encoder_, buffer_.get(), samples_per_frame_, | 294 opus_encoder_, buffer_.get(), samples_per_frame_, |
295 reinterpret_cast<uint8_t*>(string_as_array(out)), kOpusMaxPayloadSize); | 295 reinterpret_cast<uint8_t*>(base::string_as_array(out)), |
| 296 kOpusMaxPayloadSize); |
296 if (result > 1) { | 297 if (result > 1) { |
297 out->resize(result); | 298 out->resize(result); |
298 return true; | 299 return true; |
299 } else if (result < 0) { | 300 } else if (result < 0) { |
300 LOG(ERROR) << "Error code from opus_encode_float(): " << result; | 301 LOG(ERROR) << "Error code from opus_encode_float(): " << result; |
301 return false; | 302 return false; |
302 } else { | 303 } else { |
303 // Do nothing: The documentation says that a return value of zero or | 304 // Do nothing: The documentation says that a return value of zero or |
304 // one byte means the packet does not need to be transmitted. | 305 // one byte means the packet does not need to be transmitted. |
305 return false; | 306 return false; |
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835 cast_environment_->PostTask(CastEnvironment::AUDIO, | 836 cast_environment_->PostTask(CastEnvironment::AUDIO, |
836 FROM_HERE, | 837 FROM_HERE, |
837 base::Bind(&AudioEncoder::ImplBase::EncodeAudio, | 838 base::Bind(&AudioEncoder::ImplBase::EncodeAudio, |
838 impl_, | 839 impl_, |
839 base::Passed(&audio_bus), | 840 base::Passed(&audio_bus), |
840 recorded_time)); | 841 recorded_time)); |
841 } | 842 } |
842 | 843 |
843 } // namespace cast | 844 } // namespace cast |
844 } // namespace media | 845 } // namespace media |
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