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Side by Side Diff: webrtc/modules/audio_coding/neteq/audio_decoder_impl.h

Issue 1348613003: Move AudioDecoderPcm* next to AudioEncoderPcm* (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@dmove-pcm16
Patch Set: rebase Created 5 years, 3 months ago
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1 /* 1 /*
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2012 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
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21 #include "webrtc/base/constructormagic.h" 21 #include "webrtc/base/constructormagic.h"
22 #include "webrtc/modules/audio_coding/codecs/audio_decoder.h" 22 #include "webrtc/modules/audio_coding/codecs/audio_decoder.h"
23 #include "webrtc/modules/audio_coding/codecs/cng/include/webrtc_cng.h" 23 #include "webrtc/modules/audio_coding/codecs/cng/include/webrtc_cng.h"
24 #ifdef WEBRTC_CODEC_G722 24 #ifdef WEBRTC_CODEC_G722
25 #include "webrtc/modules/audio_coding/codecs/g722/include/g722_interface.h" 25 #include "webrtc/modules/audio_coding/codecs/g722/include/g722_interface.h"
26 #endif 26 #endif
27 #include "webrtc/typedefs.h" 27 #include "webrtc/typedefs.h"
28 28
29 namespace webrtc { 29 namespace webrtc {
30 30
31 class AudioDecoderPcmU : public AudioDecoder {
32 public:
33 AudioDecoderPcmU() {}
34 void Reset() override;
35 int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override;
36 size_t Channels() const override;
37
38 protected:
39 int DecodeInternal(const uint8_t* encoded,
40 size_t encoded_len,
41 int sample_rate_hz,
42 int16_t* decoded,
43 SpeechType* speech_type) override;
44
45 private:
46 RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderPcmU);
47 };
48
49 class AudioDecoderPcmA : public AudioDecoder {
50 public:
51 AudioDecoderPcmA() {}
52 void Reset() override;
53 int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override;
54 size_t Channels() const override;
55
56 protected:
57 int DecodeInternal(const uint8_t* encoded,
58 size_t encoded_len,
59 int sample_rate_hz,
60 int16_t* decoded,
61 SpeechType* speech_type) override;
62
63 private:
64 RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderPcmA);
65 };
66
67 class AudioDecoderPcmUMultiCh : public AudioDecoderPcmU {
68 public:
69 explicit AudioDecoderPcmUMultiCh(size_t channels)
70 : AudioDecoderPcmU(), channels_(channels) {
71 assert(channels > 0);
72 }
73 size_t Channels() const override;
74
75 private:
76 const size_t channels_;
77 RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderPcmUMultiCh);
78 };
79
80 class AudioDecoderPcmAMultiCh : public AudioDecoderPcmA {
81 public:
82 explicit AudioDecoderPcmAMultiCh(size_t channels)
83 : AudioDecoderPcmA(), channels_(channels) {
84 assert(channels > 0);
85 }
86 size_t Channels() const override;
87
88 private:
89 const size_t channels_;
90 RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderPcmAMultiCh);
91 };
92
93 // AudioDecoderCng is a special type of AudioDecoder. It inherits from 31 // AudioDecoderCng is a special type of AudioDecoder. It inherits from
94 // AudioDecoder just to fit in the DecoderDatabase. None of the class methods 32 // AudioDecoder just to fit in the DecoderDatabase. None of the class methods
95 // should be used, except constructor, destructor, and accessors. 33 // should be used, except constructor, destructor, and accessors.
96 // TODO(hlundin): Consider the possibility to create a super-class to 34 // TODO(hlundin): Consider the possibility to create a super-class to
97 // AudioDecoder that is stored in DecoderDatabase. Then AudioDecoder and a 35 // AudioDecoder that is stored in DecoderDatabase. Then AudioDecoder and a
98 // specific CngDecoder class could both inherit from that class. 36 // specific CngDecoder class could both inherit from that class.
99 class AudioDecoderCng : public AudioDecoder { 37 class AudioDecoderCng : public AudioDecoder {
100 public: 38 public:
101 explicit AudioDecoderCng(); 39 explicit AudioDecoderCng();
102 ~AudioDecoderCng() override; 40 ~AudioDecoderCng() override;
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159 // Returns the sample rate for |codec_type|. 97 // Returns the sample rate for |codec_type|.
160 int CodecSampleRateHz(NetEqDecoder codec_type); 98 int CodecSampleRateHz(NetEqDecoder codec_type);
161 99
162 // Creates an AudioDecoder object of type |codec_type|. Returns NULL for for 100 // Creates an AudioDecoder object of type |codec_type|. Returns NULL for for
163 // unsupported codecs, and when creating an AudioDecoder is not applicable 101 // unsupported codecs, and when creating an AudioDecoder is not applicable
164 // (e.g., for RED and DTMF/AVT types). 102 // (e.g., for RED and DTMF/AVT types).
165 AudioDecoder* CreateAudioDecoder(NetEqDecoder codec_type); 103 AudioDecoder* CreateAudioDecoder(NetEqDecoder codec_type);
166 104
167 } // namespace webrtc 105 } // namespace webrtc
168 #endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_AUDIO_DECODER_IMPL_H_ 106 #endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_AUDIO_DECODER_IMPL_H_
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