1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "AudioGain"
18 //#define LOG_NDEBUG 0
19
20 //#define VERY_VERBOSE_LOGGING
21 #ifdef VERY_VERBOSE_LOGGING
22 #define ALOGVV ALOGV
23 #else
24 #define ALOGVV(a...) do { } while(0)
25 #endif
26
27 #include <math.h>
28
29 #include <algorithm>
30
31 #include <android-base/stringprintf.h>
32 #include <media/AudioGain.h>
33 #include <utils/Log.h>
34
35 namespace android {
36
AudioGain(int index,bool isInput)37 AudioGain::AudioGain(int index, bool isInput)
38 : mIndex(index), mIsInput(isInput) {}
39
getDefaultConfig(struct audio_gain_config * config)40 void AudioGain::getDefaultConfig(struct audio_gain_config *config)
41 {
42 config->index = mIndex;
43 config->mode = mGain.mode;
44 config->channel_mask = mGain.channel_mask;
45 if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) {
46 config->values[0] = mGain.default_value;
47 } else {
48 const uint32_t numValues = mIsInput ?
49 audio_channel_count_from_in_mask(mGain.channel_mask) :
50 audio_channel_count_from_out_mask(mGain.channel_mask);
51 for (size_t i = 0; i < numValues; i++) {
52 config->values[i] = mGain.default_value;
53 }
54 }
55 if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) {
56 config->ramp_duration_ms = mGain.min_ramp_ms;
57 }
58 }
59
checkConfig(const struct audio_gain_config * config)60 status_t AudioGain::checkConfig(const struct audio_gain_config *config)
61 {
62 if ((config->mode & ~mGain.mode) != 0) {
63 return BAD_VALUE;
64 }
65 if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) {
66 if ((config->values[0] < mGain.min_value) ||
67 (config->values[0] > mGain.max_value)) {
68 return BAD_VALUE;
69 }
70 } else {
71 if ((config->channel_mask & ~mGain.channel_mask) != 0) {
72 return BAD_VALUE;
73 }
74 const uint32_t numValues = mIsInput ?
75 audio_channel_count_from_in_mask(config->channel_mask) :
76 audio_channel_count_from_out_mask(config->channel_mask);
77 for (size_t i = 0; i < numValues; i++) {
78 if ((config->values[i] < mGain.min_value) ||
79 (config->values[i] > mGain.max_value)) {
80 return BAD_VALUE;
81 }
82 }
83 }
84 if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) {
85 if ((config->ramp_duration_ms < mGain.min_ramp_ms) ||
86 (config->ramp_duration_ms > mGain.max_ramp_ms)) {
87 return BAD_VALUE;
88 }
89 }
90 return NO_ERROR;
91 }
92
dump(std::string * dst,int spaces,int index) const93 void AudioGain::dump(std::string *dst, int spaces, int index) const
94 {
95 dst->append(base::StringPrintf("%*sGain %d:\n", spaces, "", index+1));
96 dst->append(base::StringPrintf("%*s- mode: %08x\n", spaces, "", mGain.mode));
97 dst->append(base::StringPrintf("%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask));
98 dst->append(base::StringPrintf("%*s- min_value: %d mB\n", spaces, "", mGain.min_value));
99 dst->append(base::StringPrintf("%*s- max_value: %d mB\n", spaces, "", mGain.max_value));
100 dst->append(base::StringPrintf("%*s- default_value: %d mB\n", spaces, "", mGain.default_value));
101 dst->append(base::StringPrintf("%*s- step_value: %d mB\n", spaces, "", mGain.step_value));
102 dst->append(base::StringPrintf("%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms));
103 dst->append(base::StringPrintf("%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms));
104 }
105
equals(const sp<AudioGain> & other) const106 bool AudioGain::equals(const sp<AudioGain>& other) const
107 {
108 return other != nullptr &&
109 mIsInput == other->mIsInput &&
110 mUseForVolume == other->mUseForVolume &&
111 // Compare audio gain
112 mGain.mode == other->mGain.mode &&
113 mGain.channel_mask == other->mGain.channel_mask &&
114 mGain.min_value == other->mGain.min_value &&
115 mGain.max_value == other->mGain.max_value &&
116 mGain.default_value == other->mGain.default_value &&
117 mGain.step_value == other->mGain.step_value &&
118 mGain.min_ramp_ms == other->mGain.min_ramp_ms &&
119 mGain.max_ramp_ms == other->mGain.max_ramp_ms;
120 }
121
toParcelable() const122 ConversionResult<AudioGain::Aidl> AudioGain::toParcelable() const {
123 media::audio::common::AudioGain aidl = VALUE_OR_RETURN(
124 legacy2aidl_audio_gain_AudioGain(mGain, mIsInput));
125 aidl.useForVolume = mUseForVolume;
126 media::AudioGainSys aidlSys;
127 aidlSys.index = VALUE_OR_RETURN(convertIntegral<int32_t>(mIndex));
128 aidlSys.isInput = mIsInput;
129 return std::make_pair(aidl, aidlSys);
130 }
131
fromParcelable(const AudioGain::Aidl & aidl)132 ConversionResult<sp<AudioGain>> AudioGain::fromParcelable(const AudioGain::Aidl& aidl) {
133 const media::audio::common::AudioGain& hal = aidl.first;
134 const media::AudioGainSys& sys = aidl.second;
135 auto index = VALUE_OR_RETURN(convertIntegral<int>(sys.index));
136 sp<AudioGain> legacy = sp<AudioGain>::make(index, sys.isInput);
137 legacy->mGain = VALUE_OR_RETURN(aidl2legacy_AudioGain_audio_gain(hal, sys.isInput));
138 legacy->mUseForVolume = hal.useForVolume;
139 return legacy;
140 }
141
equals(const AudioGains & other) const142 bool AudioGains::equals(const AudioGains &other) const
143 {
144 return std::equal(begin(), end(), other.begin(), other.end(),
145 [](const sp<AudioGain>& left, const sp<AudioGain>& right) {
146 return left->equals(right);
147 });
148 }
149
150 ConversionResult<sp<AudioGain>>
aidl2legacy_AudioGain(const AudioGain::Aidl & aidl)151 aidl2legacy_AudioGain(const AudioGain::Aidl& aidl) {
152 return AudioGain::fromParcelable(aidl);
153 }
154
155 ConversionResult<AudioGain::Aidl>
legacy2aidl_AudioGain(const sp<AudioGain> & legacy)156 legacy2aidl_AudioGain(const sp<AudioGain>& legacy) {
157 return legacy->toParcelable();
158 }
159
160 ConversionResult<AudioGains>
aidl2legacy_AudioGains(const AudioGains::Aidl & aidl)161 aidl2legacy_AudioGains(const AudioGains::Aidl& aidl) {
162 return convertContainers<AudioGains>(aidl.first, aidl.second,
163 [](const media::audio::common::AudioGain& g,
164 const media::AudioGainSys& gs) {
165 return aidl2legacy_AudioGain(std::make_pair(g, gs));
166 });
167 }
168
169 ConversionResult<AudioGains::Aidl>
legacy2aidl_AudioGains(const AudioGains & legacy)170 legacy2aidl_AudioGains(const AudioGains& legacy) {
171 return convertContainerSplit<
172 std::vector<media::audio::common::AudioGain>,
173 std::vector<media::AudioGainSys>>(legacy, legacy2aidl_AudioGain);
174 }
175
176 } // namespace android
177