AudioInputDescriptor.cpp revision 8c7cf3b7d0d7bccb9affbc34ae2ab2d6b332f972 
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(0), 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 0;
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() const
67{
68    // TODO: return highest priority input source
69    return mSessions.size() > 0 ? mSessions.valueAt(0)->inputSource() :
70                       AUDIO_SOURCE_DEFAULT;
71}
72
73void AudioInputDescriptor::toAudioPortConfig(struct audio_port_config *dstConfig,
74                                             const struct audio_port_config *srcConfig) const
75{
76    ALOG_ASSERT(mProfile != 0,
77                "toAudioPortConfig() called on input with null profile %d", mIoHandle);
78    dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK|
79                            AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN;
80    if (srcConfig != NULL) {
81        dstConfig->config_mask |= srcConfig->config_mask;
82    }
83
84    AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig);
85
86    dstConfig->id = mId;
87    dstConfig->role = AUDIO_PORT_ROLE_SINK;
88    dstConfig->type = AUDIO_PORT_TYPE_MIX;
89    dstConfig->ext.mix.hw_module = getModuleHandle();
90    dstConfig->ext.mix.handle = mIoHandle;
91    dstConfig->ext.mix.usecase.source = inputSource();
92}
93
94void AudioInputDescriptor::toAudioPort(struct audio_port *port) const
95{
96    ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle);
97
98    mProfile->toAudioPort(port);
99    port->id = mId;
100    toAudioPortConfig(&port->active_config);
101    port->ext.mix.hw_module = getModuleHandle();
102    port->ext.mix.handle = mIoHandle;
103    port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL;
104}
105
106void AudioInputDescriptor::setPreemptedSessions(const SortedVector<audio_session_t>& sessions)
107{
108    mPreemptedSessions = sessions;
109}
110
111SortedVector<audio_session_t> AudioInputDescriptor::getPreemptedSessions() const
112{
113    return mPreemptedSessions;
114}
115
116bool AudioInputDescriptor::hasPreemptedSession(audio_session_t session) const
117{
118    return (mPreemptedSessions.indexOf(session) >= 0);
119}
120
121void AudioInputDescriptor::clearPreemptedSessions()
122{
123    mPreemptedSessions.clear();
124}
125
126bool AudioInputDescriptor::isActive() const {
127    return mSessions.hasActiveSession();
128}
129
130bool AudioInputDescriptor::isSourceActive(audio_source_t source) const
131{
132    return mSessions.isSourceActive(source);
133}
134
135bool AudioInputDescriptor::isSoundTrigger() const {
136    // sound trigger and non sound trigger sessions are not mixed
137    // on a given input
138    return mSessions.valueAt(0)->isSoundTrigger();
139}
140
141sp<AudioSession> AudioInputDescriptor::getAudioSession(
142                                              audio_session_t session) const {
143    return mSessions.valueFor(session);
144}
145
146AudioSessionCollection AudioInputDescriptor::getActiveAudioSessions() const
147{
148    return mSessions.getActiveSessions();
149}
150
151status_t AudioInputDescriptor::addAudioSession(audio_session_t session,
152                         const sp<AudioSession>& audioSession) {
153    return mSessions.addSession(session, audioSession, /*AudioSessionInfoProvider*/this);
154}
155
156status_t AudioInputDescriptor::removeAudioSession(audio_session_t session) {
157    return mSessions.removeSession(session);
158}
159
160audio_port_handle_t AudioInputDescriptor::getPatchHandle() const
161{
162    return mPatchHandle;
163}
164
165void AudioInputDescriptor::setPatchHandle(audio_patch_handle_t handle)
166{
167    mPatchHandle = handle;
168    mSessions.onSessionInfoUpdate();
169}
170
171audio_config_base_t AudioInputDescriptor::getConfig() const
172{
173    const audio_config_base_t config = { .sample_rate = mSamplingRate, .channel_mask = mChannelMask,
174            .format = mFormat };
175    return config;
176}
177
178status_t AudioInputDescriptor::dump(int fd)
179{
180    const size_t SIZE = 256;
181    char buffer[SIZE];
182    String8 result;
183
184    snprintf(buffer, SIZE, " ID: %d\n", getId());
185    result.append(buffer);
186    snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
187    result.append(buffer);
188    snprintf(buffer, SIZE, " Format: %d\n", mFormat);
189    result.append(buffer);
190    snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
191    result.append(buffer);
192    snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
193    result.append(buffer);
194
195    write(fd, result.string(), result.size());
196
197    mSessions.dump(fd, 1);
198
199    return NO_ERROR;
200}
201
202bool AudioInputCollection::isSourceActive(audio_source_t source) const
203{
204    for (size_t i = 0; i < size(); i++) {
205        const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
206        if (inputDescriptor->isSourceActive(source)) {
207            return true;
208        }
209    }
210    return false;
211}
212
213sp<AudioInputDescriptor> AudioInputCollection::getInputFromId(audio_port_handle_t id) const
214{
215    sp<AudioInputDescriptor> inputDesc = NULL;
216    for (size_t i = 0; i < size(); i++) {
217        inputDesc = valueAt(i);
218        if (inputDesc->getId() == id) {
219            break;
220        }
221    }
222    return inputDesc;
223}
224
225uint32_t AudioInputCollection::activeInputsCount() const
226{
227    uint32_t count = 0;
228    for (size_t i = 0; i < size(); i++) {
229        const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
230        if (inputDescriptor->isActive()) {
231            count++;
232        }
233    }
234    return count;
235}
236
237audio_io_handle_t AudioInputCollection::getActiveInput(bool ignoreVirtualInputs)
238{
239    for (size_t i = 0; i < size(); i++) {
240        const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
241        if ((inputDescriptor->isActive())
242                && (!ignoreVirtualInputs ||
243                    !is_virtual_input_device(inputDescriptor->mDevice))) {
244            return keyAt(i);
245        }
246    }
247    return 0;
248}
249
250audio_devices_t AudioInputCollection::getSupportedDevices(audio_io_handle_t handle) const
251{
252    sp<AudioInputDescriptor> inputDesc = valueFor(handle);
253    audio_devices_t devices = inputDesc->mProfile->getSupportedDevicesType();
254    return devices;
255}
256
257status_t AudioInputCollection::dump(int fd) const
258{
259    const size_t SIZE = 256;
260    char buffer[SIZE];
261
262    snprintf(buffer, SIZE, "\nInputs dump:\n");
263    write(fd, buffer, strlen(buffer));
264    for (size_t i = 0; i < size(); i++) {
265        snprintf(buffer, SIZE, "- Input %d dump:\n", keyAt(i));
266        write(fd, buffer, strlen(buffer));
267        valueAt(i)->dump(fd);
268    }
269
270    return NO_ERROR;
271}
272
273}; //namespace android
274