Refactor opening output interface between AF and AP.
Refactor interface between audio flinger and audio policy. Use device
descriptor instead of audio device type and address. DeviceDescriptor
can contain more information that may be useful when opening an output
stream.
In audio policy, if multiple audio devices are passed in when opening
an output stream, one device is extracted using the same strategy as
when selecting a device for volume application. When starting source,
audio policy manager will call audio flinger to create audio patch. In
that case, multiple devices will still be patched to the output stream.
Test: atest AudioTrackTest AudioPlaybackCaptureTest
Test: atest audiopolicy_tests, audio smoke test
Change-Id: I46dc2da621614f8716c6c73cf807fe7d2d672cda
diff --git a/services/audiopolicy/common/include/Volume.h b/services/audiopolicy/common/include/Volume.h
index c3a02f9..7c8ce83 100644
--- a/services/audiopolicy/common/include/Volume.h
+++ b/services/audiopolicy/common/include/Volume.h
@@ -22,6 +22,8 @@
#include <utils/Log.h>
#include <math.h>
+#include "policy.h"
+
namespace android {
/**
@@ -85,43 +87,14 @@
*/
static audio_devices_t getDeviceForVolume(const android::DeviceTypeSet& deviceTypes)
{
- audio_devices_t deviceType = AUDIO_DEVICE_NONE;
if (deviceTypes.empty()) {
// this happens when forcing a route update and no track is active on an output.
// In this case the returned category is not important.
- deviceType = AUDIO_DEVICE_OUT_SPEAKER;
- } else if (deviceTypes.size() > 1) {
- // Multiple device selection is either:
- // - speaker + one other device: give priority to speaker in this case.
- // - one A2DP device + another device: happens with duplicated output. In this case
- // retain the device on the A2DP output as the other must not correspond to an active
- // selection if not the speaker.
- // - HDMI-CEC system audio mode only output: give priority to available item in order.
- if (deviceTypes.count(AUDIO_DEVICE_OUT_SPEAKER) != 0) {
- deviceType = AUDIO_DEVICE_OUT_SPEAKER;
- } else if (deviceTypes.count(AUDIO_DEVICE_OUT_SPEAKER_SAFE) != 0) {
- deviceType = AUDIO_DEVICE_OUT_SPEAKER_SAFE;
- } else if (deviceTypes.count(AUDIO_DEVICE_OUT_HDMI_ARC) != 0) {
- deviceType = AUDIO_DEVICE_OUT_HDMI_ARC;
- } else if (deviceTypes.count(AUDIO_DEVICE_OUT_AUX_LINE) != 0) {
- deviceType = AUDIO_DEVICE_OUT_AUX_LINE;
- } else if (deviceTypes.count(AUDIO_DEVICE_OUT_SPDIF) != 0) {
- deviceType = AUDIO_DEVICE_OUT_SPDIF;
- } else {
- std::vector<audio_devices_t> a2dpDevices = android::Intersection(
- deviceTypes, android::getAudioDeviceOutAllA2dpSet());
- if (a2dpDevices.size() > 1) {
- ALOGW("getDeviceForVolume() invalid device combination: %s",
- android::dumpDeviceTypes(deviceTypes).c_str());
- }
- if (!a2dpDevices.empty()) {
- deviceType = a2dpDevices[0];
- }
- }
- } else {
- deviceType = *(deviceTypes.begin());
+ return AUDIO_DEVICE_OUT_SPEAKER;
}
+ audio_devices_t deviceType = apm_extract_one_audio_device(deviceTypes);
+
/*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/
if (deviceType == AUDIO_DEVICE_OUT_SPEAKER_SAFE) {
deviceType = AUDIO_DEVICE_OUT_SPEAKER;
diff --git a/services/audiopolicy/common/include/policy.h b/services/audiopolicy/common/include/policy.h
index 630efc1..0537365 100644
--- a/services/audiopolicy/common/include/policy.h
+++ b/services/audiopolicy/common/include/policy.h
@@ -19,6 +19,8 @@
#include <system/audio.h>
#include <vector>
+#include <media/AudioContainers.h>
+
namespace android {
using StreamTypeVector = std::vector<audio_stream_type_t>;
@@ -199,3 +201,43 @@
{
return hasStream(streams, AUDIO_STREAM_VOICE_CALL);
}
+
+/**
+ * @brief extract one device relevant from multiple device selection
+ * @param deviceTypes collection of audio device type
+ * @return the device type that is selected
+ */
+static inline audio_devices_t apm_extract_one_audio_device(
+ const android::DeviceTypeSet& deviceTypes) {
+ if (deviceTypes.empty()) {
+ return AUDIO_DEVICE_NONE;
+ } else if (deviceTypes.size() == 1) {
+ return *(deviceTypes.begin());
+ } else {
+ // Multiple device selection is either:
+ // - speaker + one other device: give priority to speaker in this case.
+ // - one A2DP device + another device: happens with duplicated output. In this case
+ // retain the device on the A2DP output as the other must not correspond to an active
+ // selection if not the speaker.
+ // - HDMI-CEC system audio mode only output: give priority to available item in order.
+ if (deviceTypes.count(AUDIO_DEVICE_OUT_SPEAKER) != 0) {
+ return AUDIO_DEVICE_OUT_SPEAKER;
+ } else if (deviceTypes.count(AUDIO_DEVICE_OUT_SPEAKER_SAFE) != 0) {
+ return AUDIO_DEVICE_OUT_SPEAKER_SAFE;
+ } else if (deviceTypes.count(AUDIO_DEVICE_OUT_HDMI_ARC) != 0) {
+ return AUDIO_DEVICE_OUT_HDMI_ARC;
+ } else if (deviceTypes.count(AUDIO_DEVICE_OUT_AUX_LINE) != 0) {
+ return AUDIO_DEVICE_OUT_AUX_LINE;
+ } else if (deviceTypes.count(AUDIO_DEVICE_OUT_SPDIF) != 0) {
+ return AUDIO_DEVICE_OUT_SPDIF;
+ } else {
+ std::vector<audio_devices_t> a2dpDevices = android::Intersection(
+ deviceTypes, android::getAudioDeviceOutAllA2dpSet());
+ if (a2dpDevices.empty() || a2dpDevices.size() > 1) {
+ ALOGW("%s invalid device combination: %s",
+ __func__, android::dumpDeviceTypes(deviceTypes).c_str());
+ }
+ return a2dpDevices.empty() ? AUDIO_DEVICE_NONE : a2dpDevices[0];
+ }
+ }
+}
\ No newline at end of file
diff --git a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
index 158215d..7faf90e 100644
--- a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
@@ -130,6 +130,14 @@
DeviceVector getFirstDevicesFromTypes(std::vector<audio_devices_t> orderedTypes) const;
sp<DeviceDescriptor> getFirstExistingDevice(std::vector<audio_devices_t> orderedTypes) const;
+ // Return device descriptor that is used to open an input/output stream.
+ // Null pointer will be returned if
+ // 1) this collection is empty
+ // 2) the device descriptors are not the same category(input or output)
+ // 3) there are more than one device type for input case
+ // 4) the combination of all devices is invalid for selection
+ sp<DeviceDescriptor> getDeviceForOpening() const;
+
// If there are devices with the given type and the devices to add is not empty,
// remove all the devices with the given type and add all the devices to add.
void replaceDevicesByType(audio_devices_t typeToRemove, const DeviceVector &devicesToAdd);
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
index 4ff69ee..dd51658 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
@@ -467,8 +467,11 @@
audio_io_handle_t *output)
{
mDevices = devices;
- const String8& address = devices.getFirstValidAddress();
- DeviceTypeSet deviceTypes = devices.types();
+ sp<DeviceDescriptor> device = devices.getDeviceForOpening();
+ LOG_ALWAYS_FATAL_IF(device == nullptr,
+ "%s failed to get device descriptor for opening "
+ "with the requested devices, all device types: %s",
+ __func__, dumpDeviceTypes(devices.types()).c_str());
audio_config_t lConfig;
if (config == nullptr) {
@@ -500,25 +503,19 @@
ALOGV("opening output for device %s profile %p name %s",
mDevices.toString().c_str(), mProfile.get(), mProfile->getName().c_str());
- // FIXME: Stop using device types as bit mask when the interface updated.
- audio_devices_t deviceType = deviceTypesToBitMask(deviceTypes);
status_t status = mClientInterface->openOutput(mProfile->getModuleHandle(),
output,
&lConfig,
- &deviceType,
- address,
+ device,
&mLatency,
mFlags);
- deviceTypes = deviceTypesFromBitMask(deviceType);
- LOG_ALWAYS_FATAL_IF(mDevices.types() != deviceTypes,
- "%s openOutput returned device %s when given device %s",
- __FUNCTION__, dumpDeviceTypes(mDevices.types()).c_str(),
- dumpDeviceTypes(deviceTypes).c_str());
if (status == NO_ERROR) {
LOG_ALWAYS_FATAL_IF(*output == AUDIO_IO_HANDLE_NONE,
- "%s openOutput returned output handle %d for device %s",
- __FUNCTION__, *output, dumpDeviceTypes(deviceTypes).c_str());
+ "%s openOutput returned output handle %d for device %s, "
+ "selected device %s for opening",
+ __FUNCTION__, *output, devices.toString().c_str(),
+ device->toString().c_str());
mSamplingRate = lConfig.sample_rate;
mChannelMask = lConfig.channel_mask;
mFormat = lConfig.format;
diff --git a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
index 4e8c01c..0587041 100644
--- a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
@@ -328,6 +328,24 @@
return device;
}
+sp<DeviceDescriptor> DeviceVector::getDeviceForOpening() const
+{
+ if (isEmpty()) {
+ // Return nullptr if this collection is empty.
+ return nullptr;
+ } else if (areAllOfSameDeviceType(types(), audio_is_input_device)) {
+ // For input case, return the first one when there is only one device.
+ return size() > 1 ? nullptr : *begin();
+ } else if (areAllOfSameDeviceType(types(), audio_is_output_device)) {
+ // For output case, return the device descriptor according to apm strategy.
+ audio_devices_t deviceType = apm_extract_one_audio_device(types());
+ return deviceType == AUDIO_DEVICE_NONE ? nullptr :
+ getDevice(deviceType, String8(""), AUDIO_FORMAT_DEFAULT);
+ }
+ // Return null pointer if the devices are not all input/output device.
+ return nullptr;
+}
+
void DeviceVector::replaceDevicesByType(
audio_devices_t typeToRemove, const DeviceVector &devicesToAdd) {
DeviceVector devicesToRemove = getDevicesFromType(typeToRemove);