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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_RED_AUDIO_ENCODER_COPY_RED_H_ | 11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_RED_AUDIO_ENCODER_COPY_RED_H_ |
12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_RED_AUDIO_ENCODER_COPY_RED_H_ | 12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_RED_AUDIO_ENCODER_COPY_RED_H_ |
13 | 13 |
14 #include <vector> | 14 #include <vector> |
15 | 15 |
16 #include "webrtc/base/buffer.h" | 16 #include "webrtc/base/buffer.h" |
17 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" | 17 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" |
18 | 18 |
19 namespace webrtc { | 19 namespace webrtc { |
20 | 20 |
21 // This class implements redundant audio coding. The class object will have an | 21 // This class implements redundant audio coding. The class object will have an |
22 // underlying AudioEncoder object that performs the actual encodings. The | 22 // underlying AudioEncoder object that performs the actual encodings. The |
23 // current class will gather the two latest encodings from the underlying codec | 23 // current class will gather the two latest encodings from the underlying codec |
24 // into one packet. | 24 // into one packet. |
25 class AudioEncoderCopyRed final : public AudioEncoder { | 25 class AudioEncoderCopyRed final : public AudioEncoder { |
26 public: | 26 public: |
27 using AudioEncoder::EncodeInternal; | |
28 | |
29 struct Config { | 27 struct Config { |
30 public: | 28 public: |
31 int payload_type; | 29 int payload_type; |
32 AudioEncoder* speech_encoder; | 30 AudioEncoder* speech_encoder; |
33 }; | 31 }; |
34 | 32 |
35 // Caller keeps ownership of the AudioEncoder object. | 33 // Caller keeps ownership of the AudioEncoder object. |
36 explicit AudioEncoderCopyRed(const Config& config); | 34 explicit AudioEncoderCopyRed(const Config& config); |
37 | 35 |
38 ~AudioEncoderCopyRed() override; | 36 ~AudioEncoderCopyRed() override; |
39 | 37 |
40 size_t MaxEncodedBytes() const override; | 38 size_t MaxEncodedBytes() const override; |
41 int SampleRateHz() const override; | 39 int SampleRateHz() const override; |
42 size_t NumChannels() const override; | 40 size_t NumChannels() const override; |
43 int RtpTimestampRateHz() const override; | 41 int RtpTimestampRateHz() const override; |
44 size_t Num10MsFramesInNextPacket() const override; | 42 size_t Num10MsFramesInNextPacket() const override; |
45 size_t Max10MsFramesInAPacket() const override; | 43 size_t Max10MsFramesInAPacket() const override; |
46 int GetTargetBitrate() const override; | 44 int GetTargetBitrate() const override; |
47 void Reset() override; | 45 void Reset() override; |
48 bool SetFec(bool enable) override; | 46 bool SetFec(bool enable) override; |
49 bool SetDtx(bool enable) override; | 47 bool SetDtx(bool enable) override; |
50 bool SetApplication(Application application) override; | 48 bool SetApplication(Application application) override; |
51 void SetMaxPlaybackRate(int frequency_hz) override; | 49 void SetMaxPlaybackRate(int frequency_hz) override; |
52 void SetProjectedPacketLossRate(double fraction) override; | 50 void SetProjectedPacketLossRate(double fraction) override; |
53 void SetTargetBitrate(int target_bps) override; | 51 void SetTargetBitrate(int target_bps) override; |
54 | 52 |
55 protected: | 53 protected: |
56 EncodedInfo EncodeInternal(uint32_t rtp_timestamp, | 54 EncodedInfo EncodeImpl(uint32_t rtp_timestamp, |
57 rtc::ArrayView<const int16_t> audio, | 55 rtc::ArrayView<const int16_t> audio, |
58 rtc::Buffer* encoded) override; | 56 rtc::Buffer* encoded) override; |
59 | 57 |
60 private: | 58 private: |
61 AudioEncoder* speech_encoder_; | 59 AudioEncoder* speech_encoder_; |
62 int red_payload_type_; | 60 int red_payload_type_; |
63 rtc::Buffer secondary_encoded_; | 61 rtc::Buffer secondary_encoded_; |
64 EncodedInfoLeaf secondary_info_; | 62 EncodedInfoLeaf secondary_info_; |
65 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderCopyRed); | 63 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderCopyRed); |
66 }; | 64 }; |
67 | 65 |
68 } // namespace webrtc | 66 } // namespace webrtc |
69 | 67 |
70 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_RED_AUDIO_ENCODER_COPY_RED_H_ | 68 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_RED_AUDIO_ENCODER_COPY_RED_H_ |
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