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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_ILBC_AUDIO_ENCODER_ILBC_H_ | 11 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_AUDIO_ENCODER_ILBC_H_ |
12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_AUDIO_ENCODER_ILBC_H_ | 12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_AUDIO_ENCODER_ILBC_H_ |
13 | 13 |
14 #include "webrtc/api/audio_codecs/audio_encoder.h" | 14 #include "webrtc/api/audio_codecs/audio_encoder.h" |
15 #include "webrtc/api/audio_codecs/audio_format.h" | |
16 #include "webrtc/api/audio_codecs/ilbc/audio_encoder_ilbc_config.h" | 15 #include "webrtc/api/audio_codecs/ilbc/audio_encoder_ilbc_config.h" |
17 #include "webrtc/modules/audio_coding/codecs/ilbc/ilbc.h" | 16 #include "webrtc/modules/audio_coding/codecs/ilbc/ilbc.h" |
18 #include "webrtc/rtc_base/constructormagic.h" | 17 #include "webrtc/rtc_base/constructormagic.h" |
19 | 18 |
20 namespace webrtc { | 19 namespace webrtc { |
21 | 20 |
22 struct CodecInst; | 21 struct CodecInst; |
23 | 22 |
24 class AudioEncoderIlbcImpl final : public AudioEncoder { | 23 class AudioEncoderIlbcImpl final : public AudioEncoder { |
25 public: | 24 public: |
26 static rtc::Optional<AudioEncoderIlbcConfig> SdpToConfig( | |
27 const SdpAudioFormat& format); | |
28 | |
29 AudioEncoderIlbcImpl(const AudioEncoderIlbcConfig& config, int payload_type); | 25 AudioEncoderIlbcImpl(const AudioEncoderIlbcConfig& config, int payload_type); |
30 explicit AudioEncoderIlbcImpl(const CodecInst& codec_inst); | 26 explicit AudioEncoderIlbcImpl(const CodecInst& codec_inst); |
31 AudioEncoderIlbcImpl(int payload_type, const SdpAudioFormat& format); | |
32 ~AudioEncoderIlbcImpl() override; | 27 ~AudioEncoderIlbcImpl() override; |
33 | 28 |
34 static constexpr const char* GetPayloadName() { return "ILBC"; } | |
35 static rtc::Optional<AudioCodecInfo> QueryAudioEncoder( | |
36 const SdpAudioFormat& format); | |
37 | |
38 int SampleRateHz() const override; | 29 int SampleRateHz() const override; |
39 size_t NumChannels() const override; | 30 size_t NumChannels() const override; |
40 size_t Num10MsFramesInNextPacket() const override; | 31 size_t Num10MsFramesInNextPacket() const override; |
41 size_t Max10MsFramesInAPacket() const override; | 32 size_t Max10MsFramesInAPacket() const override; |
42 int GetTargetBitrate() const override; | 33 int GetTargetBitrate() const override; |
43 EncodedInfo EncodeImpl(uint32_t rtp_timestamp, | 34 EncodedInfo EncodeImpl(uint32_t rtp_timestamp, |
44 rtc::ArrayView<const int16_t> audio, | 35 rtc::ArrayView<const int16_t> audio, |
45 rtc::Buffer* encoded) override; | 36 rtc::Buffer* encoded) override; |
46 void Reset() override; | 37 void Reset() override; |
47 | 38 |
48 private: | 39 private: |
49 size_t RequiredOutputSizeBytes() const; | 40 size_t RequiredOutputSizeBytes() const; |
50 | 41 |
51 static constexpr size_t kMaxSamplesPerPacket = 480; | 42 static constexpr size_t kMaxSamplesPerPacket = 480; |
52 const int frame_size_ms_; | 43 const int frame_size_ms_; |
53 const int payload_type_; | 44 const int payload_type_; |
54 const size_t num_10ms_frames_per_packet_; | 45 const size_t num_10ms_frames_per_packet_; |
55 size_t num_10ms_frames_buffered_; | 46 size_t num_10ms_frames_buffered_; |
56 uint32_t first_timestamp_in_buffer_; | 47 uint32_t first_timestamp_in_buffer_; |
57 int16_t input_buffer_[kMaxSamplesPerPacket]; | 48 int16_t input_buffer_[kMaxSamplesPerPacket]; |
58 IlbcEncoderInstance* encoder_; | 49 IlbcEncoderInstance* encoder_; |
59 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderIlbcImpl); | 50 RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderIlbcImpl); |
60 }; | 51 }; |
61 | 52 |
62 } // namespace webrtc | 53 } // namespace webrtc |
63 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_AUDIO_ENCODER_ILBC_H_ | 54 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_AUDIO_ENCODER_ILBC_H_ |
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