1 /*
2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
3 *
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
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "api/audio_codecs/opus/audio_encoder_opus_config.h"
12
13 namespace webrtc {
14
15 namespace {
16
17 #if defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS) || defined(WEBRTC_ARCH_ARM)
18 // If we are on Android, iOS and/or ARM, use a lower complexity setting by
19 // default, to save encoder complexity.
20 constexpr int kDefaultComplexity = 5;
21 #else
22 constexpr int kDefaultComplexity = 9;
23 #endif
24
25 constexpr int kDefaultLowRateComplexity =
26 WEBRTC_OPUS_VARIABLE_COMPLEXITY ? 9 : kDefaultComplexity;
27
28 } // namespace
29
30 constexpr int AudioEncoderOpusConfig::kDefaultFrameSizeMs;
31 constexpr int AudioEncoderOpusConfig::kMinBitrateBps;
32 constexpr int AudioEncoderOpusConfig::kMaxBitrateBps;
33
AudioEncoderOpusConfig()34 AudioEncoderOpusConfig::AudioEncoderOpusConfig()
35 : frame_size_ms(kDefaultFrameSizeMs),
36 num_channels(1),
37 application(ApplicationMode::kVoip),
38 bitrate_bps(32000),
39 fec_enabled(false),
40 cbr_enabled(false),
41 max_playback_rate_hz(48000),
42 complexity(kDefaultComplexity),
43 low_rate_complexity(kDefaultLowRateComplexity),
44 complexity_threshold_bps(12500),
45 complexity_threshold_window_bps(1500),
46 dtx_enabled(false),
47 uplink_bandwidth_update_interval_ms(200),
48 payload_type(-1) {}
49 AudioEncoderOpusConfig::AudioEncoderOpusConfig(const AudioEncoderOpusConfig&) =
50 default;
51 AudioEncoderOpusConfig::~AudioEncoderOpusConfig() = default;
52 AudioEncoderOpusConfig& AudioEncoderOpusConfig::operator=(
53 const AudioEncoderOpusConfig&) = default;
54
IsOk() const55 bool AudioEncoderOpusConfig::IsOk() const {
56 if (frame_size_ms <= 0 || frame_size_ms % 10 != 0)
57 return false;
58 if (num_channels != 1 && num_channels != 2)
59 return false;
60 if (!bitrate_bps)
61 return false;
62 if (*bitrate_bps < kMinBitrateBps || *bitrate_bps > kMaxBitrateBps)
63 return false;
64 if (complexity < 0 || complexity > 10)
65 return false;
66 if (low_rate_complexity < 0 || low_rate_complexity > 10)
67 return false;
68 return true;
69 }
70 } // namespace webrtc
71