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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 "remoting/codec/audio_encoder_opus.h" | 5 #include "remoting/codec/audio_encoder_opus.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/time/time.h" | 9 #include "base/time/time.h" |
10 #include "media/base/audio_bus.h" | 10 #include "media/base/audio_bus.h" |
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130 resampling_data_ + resampling_data_pos_, | 130 resampling_data_ + resampling_data_pos_, |
131 audio_bus->frames(), kBytesPerSample); | 131 audio_bus->frames(), kBytesPerSample); |
132 resampling_data_pos_ += audio_bus->frames() * kBytesPerSample * channels_; | 132 resampling_data_pos_ += audio_bus->frames() * kBytesPerSample * channels_; |
133 DCHECK_LE(resampling_data_pos_, static_cast<int>(resampling_data_size_)); | 133 DCHECK_LE(resampling_data_pos_, static_cast<int>(resampling_data_size_)); |
134 } | 134 } |
135 | 135 |
136 int AudioEncoderOpus::GetBitrate() { | 136 int AudioEncoderOpus::GetBitrate() { |
137 return kOutputBitrateBps; | 137 return kOutputBitrateBps; |
138 } | 138 } |
139 | 139 |
140 scoped_ptr<AudioPacket> AudioEncoderOpus::Encode( | 140 std::unique_ptr<AudioPacket> AudioEncoderOpus::Encode( |
141 scoped_ptr<AudioPacket> packet) { | 141 std::unique_ptr<AudioPacket> packet) { |
142 DCHECK_EQ(AudioPacket::ENCODING_RAW, packet->encoding()); | 142 DCHECK_EQ(AudioPacket::ENCODING_RAW, packet->encoding()); |
143 DCHECK_EQ(1, packet->data_size()); | 143 DCHECK_EQ(1, packet->data_size()); |
144 DCHECK_EQ(kBytesPerSample, packet->bytes_per_sample()); | 144 DCHECK_EQ(kBytesPerSample, packet->bytes_per_sample()); |
145 | 145 |
146 if (!ResetForPacket(packet.get())) { | 146 if (!ResetForPacket(packet.get())) { |
147 LOG(ERROR) << "Encoder initialization failed"; | 147 LOG(ERROR) << "Encoder initialization failed"; |
148 return nullptr; | 148 return nullptr; |
149 } | 149 } |
150 | 150 |
151 int samples_in_packet = packet->data(0).size() / kBytesPerSample / channels_; | 151 int samples_in_packet = packet->data(0).size() / kBytesPerSample / channels_; |
152 const int16_t* next_sample = | 152 const int16_t* next_sample = |
153 reinterpret_cast<const int16_t*>(packet->data(0).data()); | 153 reinterpret_cast<const int16_t*>(packet->data(0).data()); |
154 | 154 |
155 // Create a new packet of encoded data. | 155 // Create a new packet of encoded data. |
156 scoped_ptr<AudioPacket> encoded_packet(new AudioPacket()); | 156 std::unique_ptr<AudioPacket> encoded_packet(new AudioPacket()); |
157 encoded_packet->set_encoding(AudioPacket::ENCODING_OPUS); | 157 encoded_packet->set_encoding(AudioPacket::ENCODING_OPUS); |
158 encoded_packet->set_sampling_rate(kOpusSamplingRate); | 158 encoded_packet->set_sampling_rate(kOpusSamplingRate); |
159 encoded_packet->set_channels(channels_); | 159 encoded_packet->set_channels(channels_); |
160 | 160 |
161 int prefetch_samples = | 161 int prefetch_samples = |
162 resampler_.get() ? media::SincResampler::kDefaultRequestSize : 0; | 162 resampler_.get() ? media::SincResampler::kDefaultRequestSize : 0; |
163 int samples_wanted = frame_size_ + prefetch_samples; | 163 int samples_wanted = frame_size_ + prefetch_samples; |
164 | 164 |
165 while (leftover_samples_ + samples_in_packet >= samples_wanted) { | 165 while (leftover_samples_ + samples_in_packet >= samples_wanted) { |
166 const int16_t* pcm_buffer = nullptr; | 166 const int16_t* pcm_buffer = nullptr; |
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232 } | 232 } |
233 | 233 |
234 // Return nullptr if there's nothing in the packet. | 234 // Return nullptr if there's nothing in the packet. |
235 if (encoded_packet->data_size() == 0) | 235 if (encoded_packet->data_size() == 0) |
236 return nullptr; | 236 return nullptr; |
237 | 237 |
238 return encoded_packet; | 238 return encoded_packet; |
239 } | 239 } |
240 | 240 |
241 } // namespace remoting | 241 } // namespace remoting |
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