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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_G711_INCLUDE_AUDIO_ENCODER_PCM_H_ | 11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_G711_INCLUDE_AUDIO_ENCODER_PCM_H_ |
12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_G711_INCLUDE_AUDIO_ENCODER_PCM_H_ | 12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_G711_INCLUDE_AUDIO_ENCODER_PCM_H_ |
13 | 13 |
14 #include <vector> | 14 #include <vector> |
15 | 15 |
16 #include "webrtc/base/scoped_ptr.h" | 16 #include "webrtc/base/scoped_ptr.h" |
17 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" | 17 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" |
18 #include "webrtc/modules/audio_coding/codecs/audio_encoder_mutable_impl.h" | |
19 | 18 |
20 namespace webrtc { | 19 namespace webrtc { |
21 | 20 |
22 class AudioEncoderPcm : public AudioEncoder { | 21 class AudioEncoderPcm : public AudioEncoder { |
23 public: | 22 public: |
24 struct Config { | 23 struct Config { |
25 public: | 24 public: |
26 bool IsOk() const; | 25 bool IsOk() const; |
27 | 26 |
28 int frame_size_ms; | 27 int frame_size_ms; |
29 int num_channels; | 28 int num_channels; |
30 int payload_type; | 29 int payload_type; |
31 | 30 |
32 protected: | 31 protected: |
33 explicit Config(int pt) | 32 explicit Config(int pt) |
34 : frame_size_ms(20), num_channels(1), payload_type(pt) {} | 33 : frame_size_ms(20), num_channels(1), payload_type(pt) {} |
35 }; | 34 }; |
36 | 35 |
37 ~AudioEncoderPcm() override; | 36 ~AudioEncoderPcm() override; |
38 | 37 |
| 38 size_t MaxEncodedBytes() const override; |
39 int SampleRateHz() const override; | 39 int SampleRateHz() const override; |
40 int NumChannels() const override; | 40 int NumChannels() const override; |
41 size_t MaxEncodedBytes() const override; | |
42 size_t Num10MsFramesInNextPacket() const override; | 41 size_t Num10MsFramesInNextPacket() const override; |
43 size_t Max10MsFramesInAPacket() const override; | 42 size_t Max10MsFramesInAPacket() const override; |
44 int GetTargetBitrate() const override; | 43 int GetTargetBitrate() const override; |
45 EncodedInfo EncodeInternal(uint32_t rtp_timestamp, | 44 EncodedInfo EncodeInternal(uint32_t rtp_timestamp, |
46 const int16_t* audio, | 45 const int16_t* audio, |
47 size_t max_encoded_bytes, | 46 size_t max_encoded_bytes, |
48 uint8_t* encoded) override; | 47 uint8_t* encoded) override; |
| 48 void Reset() override; |
49 | 49 |
50 protected: | 50 protected: |
51 AudioEncoderPcm(const Config& config, int sample_rate_hz); | 51 AudioEncoderPcm(const Config& config, int sample_rate_hz); |
52 | 52 |
53 virtual size_t EncodeCall(const int16_t* audio, | 53 virtual size_t EncodeCall(const int16_t* audio, |
54 size_t input_len, | 54 size_t input_len, |
55 uint8_t* encoded) = 0; | 55 uint8_t* encoded) = 0; |
56 | 56 |
57 virtual int BytesPerSample() const = 0; | 57 virtual int BytesPerSample() const = 0; |
58 | 58 |
59 private: | 59 private: |
60 const int sample_rate_hz_; | 60 const int sample_rate_hz_; |
61 const int num_channels_; | 61 const int num_channels_; |
62 const int payload_type_; | 62 const int payload_type_; |
63 const size_t num_10ms_frames_per_packet_; | 63 const size_t num_10ms_frames_per_packet_; |
64 const size_t full_frame_samples_; | 64 const size_t full_frame_samples_; |
65 std::vector<int16_t> speech_buffer_; | 65 std::vector<int16_t> speech_buffer_; |
66 uint32_t first_timestamp_in_buffer_; | 66 uint32_t first_timestamp_in_buffer_; |
67 }; | 67 }; |
68 | 68 |
| 69 struct CodecInst; |
| 70 |
69 class AudioEncoderPcmA final : public AudioEncoderPcm { | 71 class AudioEncoderPcmA final : public AudioEncoderPcm { |
70 public: | 72 public: |
71 struct Config : public AudioEncoderPcm::Config { | 73 struct Config : public AudioEncoderPcm::Config { |
72 Config() : AudioEncoderPcm::Config(8) {} | 74 Config() : AudioEncoderPcm::Config(8) {} |
73 }; | 75 }; |
74 | 76 |
75 explicit AudioEncoderPcmA(const Config& config) | 77 explicit AudioEncoderPcmA(const Config& config) |
76 : AudioEncoderPcm(config, kSampleRateHz) {} | 78 : AudioEncoderPcm(config, kSampleRateHz) {} |
| 79 explicit AudioEncoderPcmA(const CodecInst& codec_inst); |
77 | 80 |
78 protected: | 81 protected: |
79 size_t EncodeCall(const int16_t* audio, | 82 size_t EncodeCall(const int16_t* audio, |
80 size_t input_len, | 83 size_t input_len, |
81 uint8_t* encoded) override; | 84 uint8_t* encoded) override; |
82 | 85 |
83 int BytesPerSample() const override; | 86 int BytesPerSample() const override; |
84 | 87 |
85 private: | 88 private: |
86 static const int kSampleRateHz = 8000; | 89 static const int kSampleRateHz = 8000; |
87 }; | 90 }; |
88 | 91 |
89 class AudioEncoderPcmU final : public AudioEncoderPcm { | 92 class AudioEncoderPcmU final : public AudioEncoderPcm { |
90 public: | 93 public: |
91 struct Config : public AudioEncoderPcm::Config { | 94 struct Config : public AudioEncoderPcm::Config { |
92 Config() : AudioEncoderPcm::Config(0) {} | 95 Config() : AudioEncoderPcm::Config(0) {} |
93 }; | 96 }; |
94 | 97 |
95 explicit AudioEncoderPcmU(const Config& config) | 98 explicit AudioEncoderPcmU(const Config& config) |
96 : AudioEncoderPcm(config, kSampleRateHz) {} | 99 : AudioEncoderPcm(config, kSampleRateHz) {} |
| 100 explicit AudioEncoderPcmU(const CodecInst& codec_inst); |
97 | 101 |
98 protected: | 102 protected: |
99 size_t EncodeCall(const int16_t* audio, | 103 size_t EncodeCall(const int16_t* audio, |
100 size_t input_len, | 104 size_t input_len, |
101 uint8_t* encoded) override; | 105 uint8_t* encoded) override; |
102 | 106 |
103 int BytesPerSample() const override; | 107 int BytesPerSample() const override; |
104 | 108 |
105 private: | 109 private: |
106 static const int kSampleRateHz = 8000; | 110 static const int kSampleRateHz = 8000; |
107 }; | 111 }; |
108 | 112 |
109 struct CodecInst; | |
110 | |
111 class AudioEncoderMutablePcmU | |
112 : public AudioEncoderMutableImpl<AudioEncoderPcmU> { | |
113 public: | |
114 explicit AudioEncoderMutablePcmU(const CodecInst& codec_inst); | |
115 }; | |
116 | |
117 class AudioEncoderMutablePcmA | |
118 : public AudioEncoderMutableImpl<AudioEncoderPcmA> { | |
119 public: | |
120 explicit AudioEncoderMutablePcmA(const CodecInst& codec_inst); | |
121 }; | |
122 | |
123 } // namespace webrtc | 113 } // namespace webrtc |
124 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_G711_INCLUDE_AUDIO_ENCODER_PCM_H_ | 114 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_G711_INCLUDE_AUDIO_ENCODER_PCM_H_ |
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