AudioInputDescriptor.cpp revision bb9480975322b0d1a09f76ef14f3285fc8af4e5f 
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 "APM::AudioInputDescriptor"
18//#define LOG_NDEBUG 0
19
20#include "AudioInputDescriptor.h"
21#include "IOProfile.h"
22#include "AudioGain.h"
23#include "HwModule.h"
24#include <media/AudioPolicy.h>
25#include <policy.h>
26
27namespace android {
28
29AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile)
30    : mIoHandle(0),
31      mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL),
32      mProfile(profile), mPatchHandle(AUDIO_PATCH_HANDLE_NONE), mId(0)
33{
34    if (profile != NULL) {
35        profile->pickAudioProfile(mSamplingRate, mChannelMask, mFormat);
36        if (profile->mGains.size() > 0) {
37            profile->mGains[0]->getDefaultConfig(&mGain);
38        }
39    }
40}
41
42void AudioInputDescriptor::setIoHandle(audio_io_handle_t ioHandle)
43{
44    mId = AudioPort::getNextUniqueId();
45    mIoHandle = ioHandle;
46}
47
48audio_module_handle_t AudioInputDescriptor::getModuleHandle() const
49{
50    if (mProfile == 0) {
51        return AUDIO_MODULE_HANDLE_NONE;
52    }
53    return mProfile->getModuleHandle();
54}
55
56uint32_t AudioInputDescriptor::getOpenRefCount() const
57{
58    return mSessions.getOpenCount();
59}
60
61audio_port_handle_t AudioInputDescriptor::getId() const
62{
63    return mId;
64}
65
66audio_source_t AudioInputDescriptor::inputSource(bool activeOnly) const
67{
68    return getHighestPrioritySource(activeOnly);
69}
70
71void AudioInputDescriptor::toAudioPortConfig(struct audio_port_config *dstConfig,
72                                             const struct audio_port_config *srcConfig) const
73{
74    ALOG_ASSERT(mProfile != 0,
75                "toAudioPortConfig() called on input with null profile %d", mIoHandle);
76    dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK|
77                            AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN;
78    if (srcConfig != NULL) {
79        dstConfig->config_mask |= srcConfig->config_mask;
80    }
81
82    AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig);
83
84    dstConfig->id = mId;
85    dstConfig->role = AUDIO_PORT_ROLE_SINK;
86    dstConfig->type = AUDIO_PORT_TYPE_MIX;
87    dstConfig->ext.mix.hw_module = getModuleHandle();
88    dstConfig->ext.mix.handle = mIoHandle;
89    dstConfig->ext.mix.usecase.source = inputSource();
90}
91
92void AudioInputDescriptor::toAudioPort(struct audio_port *port) const
93{
94    ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle);
95
96    mProfile->toAudioPort(port);
97    port->id = mId;
98    toAudioPortConfig(&port->active_config);
99    port->ext.mix.hw_module = getModuleHandle();
100    port->ext.mix.handle = mIoHandle;
101    port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL;
102}
103
104void AudioInputDescriptor::setPreemptedSessions(const SortedVector<audio_session_t>& sessions)
105{
106    mPreemptedSessions = sessions;
107}
108
109SortedVector<audio_session_t> AudioInputDescriptor::getPreemptedSessions() const
110{
111    return mPreemptedSessions;
112}
113
114bool AudioInputDescriptor::hasPreemptedSession(audio_session_t session) const
115{
116    return (mPreemptedSessions.indexOf(session) >= 0);
117}
118
119void AudioInputDescriptor::clearPreemptedSessions()
120{
121    mPreemptedSessions.clear();
122}
123
124bool AudioInputDescriptor::isActive() const {
125    return mSessions.hasActiveSession();
126}
127
128bool AudioInputDescriptor::isSourceActive(audio_source_t source) const
129{
130    return mSessions.isSourceActive(source);
131}
132
133audio_source_t AudioInputDescriptor::getHighestPrioritySource(bool activeOnly) const
134{
135
136    return mSessions.getHighestPrioritySource(activeOnly);
137}
138
139bool AudioInputDescriptor::isSoundTrigger() const {
140    // sound trigger and non sound trigger sessions are not mixed
141    // on a given input
142    return mSessions.valueAt(0)->isSoundTrigger();
143}
144
145sp<AudioSession> AudioInputDescriptor::getAudioSession(
146                                              audio_session_t session) const {
147    return mSessions.valueFor(session);
148}
149
150AudioSessionCollection AudioInputDescriptor::getAudioSessions(bool activeOnly) const
151{
152    if (activeOnly) {
153        return mSessions.getActiveSessions();
154    } else {
155        return mSessions;
156    }
157}
158
159size_t AudioInputDescriptor::getAudioSessionCount(bool activeOnly) const
160{
161    if (activeOnly) {
162        return mSessions.getActiveSessionCount();
163    } else {
164        return mSessions.size();
165    }
166}
167
168status_t AudioInputDescriptor::addAudioSession(audio_session_t session,
169                         const sp<AudioSession>& audioSession) {
170    return mSessions.addSession(session, audioSession, /*AudioSessionInfoProvider*/this);
171}
172
173status_t AudioInputDescriptor::removeAudioSession(audio_session_t session) {
174    return mSessions.removeSession(session);
175}
176
177audio_patch_handle_t AudioInputDescriptor::getPatchHandle() const
178{
179    return mPatchHandle;
180}
181
182void AudioInputDescriptor::setPatchHandle(audio_patch_handle_t handle)
183{
184    mPatchHandle = handle;
185    mSessions.onSessionInfoUpdate();
186}
187
188audio_config_base_t AudioInputDescriptor::getConfig() const
189{
190    const audio_config_base_t config = { .sample_rate = mSamplingRate, .channel_mask = mChannelMask,
191            .format = mFormat };
192    return config;
193}
194
195status_t AudioInputDescriptor::dump(int fd)
196{
197    const size_t SIZE = 256;
198    char buffer[SIZE];
199    String8 result;
200
201    snprintf(buffer, SIZE, " ID: %d\n", getId());
202    result.append(buffer);
203    snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
204    result.append(buffer);
205    snprintf(buffer, SIZE, " Format: %d\n", mFormat);
206    result.append(buffer);
207    snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
208    result.append(buffer);
209    snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
210    result.append(buffer);
211
212    write(fd, result.string(), result.size());
213
214    mSessions.dump(fd, 1);
215
216    return NO_ERROR;
217}
218
219bool AudioInputCollection::isSourceActive(audio_source_t source) const
220{
221    for (size_t i = 0; i < size(); i++) {
222        const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
223        if (inputDescriptor->isSourceActive(source)) {
224            return true;
225        }
226    }
227    return false;
228}
229
230sp<AudioInputDescriptor> AudioInputCollection::getInputFromId(audio_port_handle_t id) const
231{
232    sp<AudioInputDescriptor> inputDesc = NULL;
233    for (size_t i = 0; i < size(); i++) {
234        inputDesc = valueAt(i);
235        if (inputDesc->getId() == id) {
236            break;
237        }
238    }
239    return inputDesc;
240}
241
242uint32_t AudioInputCollection::activeInputsCountOnDevices(audio_devices_t devices) const
243{
244    uint32_t count = 0;
245    for (size_t i = 0; i < size(); i++) {
246        const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
247        if (inputDescriptor->isActive() &&
248                ((devices == AUDIO_DEVICE_IN_DEFAULT) ||
249                 ((inputDescriptor->mDevice & devices & ~AUDIO_DEVICE_BIT_IN) != 0))) {
250            count++;
251        }
252    }
253    return count;
254}
255
256Vector<sp <AudioInputDescriptor> > AudioInputCollection::getActiveInputs(bool ignoreVirtualInputs)
257{
258    Vector<sp <AudioInputDescriptor> > activeInputs;
259
260    for (size_t i = 0; i < size(); i++) {
261        const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
262        if ((inputDescriptor->isActive())
263                && (!ignoreVirtualInputs ||
264                    !is_virtual_input_device(inputDescriptor->mDevice))) {
265            activeInputs.add(inputDescriptor);
266        }
267    }
268    return activeInputs;
269}
270
271audio_devices_t AudioInputCollection::getSupportedDevices(audio_io_handle_t handle) const
272{
273    sp<AudioInputDescriptor> inputDesc = valueFor(handle);
274    audio_devices_t devices = inputDesc->mProfile->getSupportedDevicesType();
275    return devices;
276}
277
278status_t AudioInputCollection::dump(int fd) const
279{
280    const size_t SIZE = 256;
281    char buffer[SIZE];
282
283    snprintf(buffer, SIZE, "\nInputs dump:\n");
284    write(fd, buffer, strlen(buffer));
285    for (size_t i = 0; i < size(); i++) {
286        snprintf(buffer, SIZE, "- Input %d dump:\n", keyAt(i));
287        write(fd, buffer, strlen(buffer));
288        valueAt(i)->dump(fd);
289    }
290
291    return NO_ERROR;
292}
293
294}; //namespace android
295