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| 1 /* | |
| 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_G722_INCLUDE_AUDIO_ENCODER_G722_H_ | |
| 12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_G722_INCLUDE_AUDIO_ENCODER_G722_H_ | |
| 13 | |
| 14 #include "webrtc/base/buffer.h" | |
| 15 #include "webrtc/base/scoped_ptr.h" | |
| 16 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" | |
| 17 #include "webrtc/modules/audio_coding/codecs/g722/include/g722_interface.h" | |
| 18 | |
| 19 namespace webrtc { | |
| 20 | |
| 21 struct CodecInst; | |
| 22 | |
| 23 class AudioEncoderG722 final : public AudioEncoder { | |
| 24 public: | |
| 25 struct Config { | |
| 26 bool IsOk() const; | |
| 27 | |
| 28 int payload_type = 9; | |
| 29 int frame_size_ms = 20; | |
| 30 int num_channels = 1; | |
| 31 }; | |
| 32 | |
| 33 explicit AudioEncoderG722(const Config& config); | |
| 34 explicit AudioEncoderG722(const CodecInst& codec_inst); | |
| 35 ~AudioEncoderG722() override; | |
| 36 | |
| 37 size_t MaxEncodedBytes() const override; | |
| 38 int SampleRateHz() const override; | |
| 39 int NumChannels() const override; | |
| 40 int RtpTimestampRateHz() const override; | |
| 41 size_t Num10MsFramesInNextPacket() const override; | |
| 42 size_t Max10MsFramesInAPacket() const override; | |
| 43 int GetTargetBitrate() const override; | |
| 44 EncodedInfo EncodeInternal(uint32_t rtp_timestamp, | |
| 45 rtc::ArrayView<const int16_t> audio, | |
| 46 size_t max_encoded_bytes, | |
| 47 uint8_t* encoded) override; | |
| 48 void Reset() override; | |
| 49 | |
| 50 private: | |
| 51 // The encoder state for one channel. | |
| 52 struct EncoderState { | |
| 53 G722EncInst* encoder; | |
| 54 rtc::scoped_ptr<int16_t[]> speech_buffer; // Queued up for encoding. | |
| 55 rtc::Buffer encoded_buffer; // Already encoded. | |
| 56 EncoderState(); | |
| 57 ~EncoderState(); | |
| 58 }; | |
| 59 | |
| 60 size_t SamplesPerChannel() const; | |
| 61 | |
| 62 const int num_channels_; | |
| 63 const int payload_type_; | |
| 64 const size_t num_10ms_frames_per_packet_; | |
| 65 size_t num_10ms_frames_buffered_; | |
| 66 uint32_t first_timestamp_in_buffer_; | |
| 67 const rtc::scoped_ptr<EncoderState[]> encoders_; | |
| 68 rtc::Buffer interleave_buffer_; | |
| 69 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderG722); | |
| 70 }; | |
| 71 | |
| 72 } // namespace webrtc | |
| 73 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_G722_INCLUDE_AUDIO_ENCODER_G722_H_ | |
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