blob: b172de2628b33f65aa2e1e8279e33e472c33600e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_CODEC_AUDIO_ENCODER_OPUS_H_
#define REMOTING_CODEC_AUDIO_ENCODER_OPUS_H_
#include "remoting/codec/audio_encoder.h"
#include "remoting/proto/audio.pb.h"
struct OpusEncoder;
namespace media {
class AudioBus;
class MultiChannelResampler;
} // namespace media
namespace remoting {
class AudioPacket;
class AudioEncoderOpus : public AudioEncoder {
public:
AudioEncoderOpus();
virtual ~AudioEncoderOpus();
// AudioEncoder interface.
virtual scoped_ptr<AudioPacket> Encode(
scoped_ptr<AudioPacket> packet) OVERRIDE;
private:
void InitEncoder();
void DestroyEncoder();
bool ResetForPacket(AudioPacket* packet);
void FetchBytesToResample(media::AudioBus* audio_bus);
int sampling_rate_;
AudioPacket::Channels channels_;
OpusEncoder* encoder_;
int frame_size_;
scoped_ptr<media::MultiChannelResampler> resampler_;
scoped_array<char> resample_buffer_;
scoped_ptr<media::AudioBus> resampler_bus_;
// Used to pass packet to the FetchBytesToResampler() callback.
const char* resampling_data_;
int resampling_data_size_;
int resampling_data_pos_;
// Left-over unencoded samples from the previous AudioPacket.
scoped_array<int16> leftover_buffer_;
int leftover_buffer_size_;
int leftover_samples_;
DISALLOW_COPY_AND_ASSIGN(AudioEncoderOpus);
};
} // namespace remoting
#endif // REMOTING_CODEC_AUDIO_ENCODER_OPUS_H_
|
