Add AudioMix and AudioMixCollection to common policy element

This patch adds AudioMix and associated collection to the common
policy pillar elements library.
It removes the code from the manager and creates also helpers function
associated to the mix collection.

Change-Id: Ia3536fdef09da13734d2895030d736c701040237
Signed-off-by: François Gaffie <francois.gaffie@intel.com>

1 files changed, 193 insertions, 0 deletions

diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
new file mode 100644
index 0000000..84a53eb
--- /dev/null
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "APM::AudioPolicyMix"
+//#define LOG_NDEBUG 0
+
+#include "AudioPolicyMix.h"
+#include "HwModule.h"
+#include "AudioPort.h"
+#include "IOProfile.h"
+#include "AudioGain.h"
+#include <AudioOutputDescriptor.h>
+
+namespace android {
+
+void AudioPolicyMix::setOutput(sp<AudioOutputDescriptor> &output)
+{
+    mOutput = output;
+}
+
+const sp<AudioOutputDescriptor> &AudioPolicyMix::getOutput() const
+{
+    return mOutput;
+}
+
+void AudioPolicyMix::clearOutput()
+{
+    mOutput.clear();
+}
+
+void AudioPolicyMix::setMix(AudioMix &mix)
+{
+    mMix = mix;
+}
+
+android::AudioMix &AudioPolicyMix::getMix()
+{
+    return mMix;
+}
+
+status_t AudioPolicyMixCollection::registerMix(String8 address, AudioMix mix)
+{
+    ssize_t index = indexOfKey(address);
+    if (index >= 0) {
+        ALOGE("registerPolicyMixes(): mix for address %s already registered", address.string());
+        return BAD_VALUE;
+    }
+    sp<AudioPolicyMix> policyMix = new AudioPolicyMix();
+    policyMix->setMix(mix);
+    add(address, policyMix);
+    return NO_ERROR;
+}
+
+status_t AudioPolicyMixCollection::unregisterMix(String8 address)
+{
+    ssize_t index = indexOfKey(address);
+    if (index < 0) {
+        ALOGE("unregisterPolicyMixes(): mix for address %s not registered", address.string());
+        return BAD_VALUE;
+    }
+
+    removeItemsAt(index);
+    return NO_ERROR;
+}
+
+status_t AudioPolicyMixCollection::getAudioPolicyMix(String8 address,
+                                                     sp<AudioPolicyMix> &policyMix) const
+{
+    ssize_t index = indexOfKey(address);
+    if (index < 0) {
+        ALOGE("unregisterPolicyMixes(): mix for address %s not registered", address.string());
+        return BAD_VALUE;
+    }
+    policyMix = valueAt(index);
+    return NO_ERROR;
+}
+
+void AudioPolicyMixCollection::closeOutput(sp<AudioOutputDescriptor> &desc)
+{
+    for (size_t i = 0; i < size(); i++) {
+        sp<AudioPolicyMix> policyMix = valueAt(i);
+        if (policyMix->getOutput() == desc) {
+            policyMix->clearOutput();
+        }
+    }
+}
+
+status_t AudioPolicyMixCollection::getOutputForAttr(audio_attributes_t attributes,
+                                                    sp<AudioOutputDescriptor> &desc)
+{
+    for (size_t i = 0; i < size(); i++) {
+        sp<AudioPolicyMix> policyMix = valueAt(i);
+        AudioMix mix = policyMix->getMix();
+
+        if (mix.mMixType == MIX_TYPE_PLAYERS) {
+            for (size_t j = 0; j < mix.mCriteria.size(); j++) {
+                if ((RULE_MATCH_ATTRIBUTE_USAGE == mix.mCriteria[j].mRule &&
+                     mix.mCriteria[j].mAttr.mUsage == attributes.usage) ||
+                        (RULE_EXCLUDE_ATTRIBUTE_USAGE == mix.mCriteria[j].mRule &&
+                         mix.mCriteria[j].mAttr.mUsage != attributes.usage)) {
+                    desc = policyMix->getOutput();
+                    break;
+                }
+                if (strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 &&
+                        strncmp(attributes.tags + strlen("addr="),
+                                mix.mRegistrationId.string(),
+                                AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) {
+                    desc = policyMix->getOutput();
+                    break;
+                }
+            }
+        } else if (mix.mMixType == MIX_TYPE_RECORDERS) {
+            if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE &&
+                    strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 &&
+                    strncmp(attributes.tags + strlen("addr="),
+                            mix.mRegistrationId.string(),
+                            AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) {
+                desc = policyMix->getOutput();
+            }
+        }
+        if (desc != 0) {
+            desc->mPolicyMix = &mix;
+            return NO_ERROR;
+        }
+    }
+    return BAD_VALUE;
+}
+
+audio_devices_t AudioPolicyMixCollection::getDeviceAndMixForInputSource(audio_source_t inputSource,
+                                                                        audio_devices_t availDevices,
+                                                                        AudioMix **policyMix)
+{
+    for (size_t i = 0; i < size(); i++) {
+        AudioMix mix = valueAt(i)->getMix();
+
+        if (mix.mMixType != MIX_TYPE_RECORDERS) {
+            continue;
+        }
+        for (size_t j = 0; j < mix.mCriteria.size(); j++) {
+            if ((RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET == mix.mCriteria[j].mRule &&
+                    mix.mCriteria[j].mAttr.mSource == inputSource) ||
+               (RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET == mix.mCriteria[j].mRule &&
+                    mix.mCriteria[j].mAttr.mSource != inputSource)) {
+                if (availDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
+                    if (policyMix != NULL) {
+                        *policyMix = &mix;
+                    }
+                    return AUDIO_DEVICE_IN_REMOTE_SUBMIX;
+                }
+                break;
+            }
+        }
+    }
+    return AUDIO_DEVICE_NONE;
+}
+
+status_t AudioPolicyMixCollection::getInputMixForAttr(audio_attributes_t attr, AudioMix *&policyMix)
+{
+    if (strncmp(attr.tags, "addr=", strlen("addr=")) != 0) {
+        return BAD_VALUE;
+    }
+    String8 address(attr.tags + strlen("addr="));
+
+    ssize_t index = indexOfKey(address);
+    if (index < 0) {
+        ALOGW("getInputForAttr() no policy for address %s", address.string());
+        return BAD_VALUE;
+    }
+    sp<AudioPolicyMix> audioPolicyMix = valueAt(index);
+    AudioMix mix = audioPolicyMix->getMix();
+
+    if (mix.mMixType != MIX_TYPE_PLAYERS) {
+        ALOGW("getInputForAttr() bad policy mix type for address %s", address.string());
+        return BAD_VALUE;
+    }
+    policyMix = &mix;
+    return NO_ERROR;
+}
+
+}; //namespace android