Merge "AudioFlinger: fallback to non-primary HW devs if getInputBufferSize failed" into main
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 97c80a8..4e50114 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1922,10 +1922,11 @@
if (mPrimaryHardwareDev == nullptr) {
return 0;
}
+ if (mInputBufferSizeOrderedDevs.empty()) {
+ return 0;
+ }
mHardwareStatus = AUDIO_HW_GET_INPUT_BUFFER_SIZE;
- sp<DeviceHalInterface> dev = mPrimaryHardwareDev.load()->hwDevice();
-
std::vector<audio_channel_mask_t> channelMasks = {channelMask};
if (channelMask != AUDIO_CHANNEL_IN_MONO) {
channelMasks.push_back(AUDIO_CHANNEL_IN_MONO);
@@ -1955,6 +1956,22 @@
mHardwareStatus = AUDIO_HW_IDLE;
+ auto getInputBufferSize = [](const sp<DeviceHalInterface>& dev, audio_config_t config,
+ size_t* bytes) -> status_t {
+ if (!dev) {
+ return BAD_VALUE;
+ }
+ status_t result = dev->getInputBufferSize(&config, bytes);
+ if (result == BAD_VALUE) {
+ // Retry with the config suggested by the HAL.
+ result = dev->getInputBufferSize(&config, bytes);
+ }
+ if (result != OK || *bytes == 0) {
+ return BAD_VALUE;
+ }
+ return result;
+ };
+
// Change parameters of the configuration each iteration until we find a
// configuration that the device will support, or HAL suggests what it supports.
audio_config_t config = AUDIO_CONFIG_INITIALIZER;
@@ -1966,16 +1983,15 @@
config.sample_rate = testSampleRate;
size_t bytes = 0;
- audio_config_t loopConfig = config;
- status_t result = dev->getInputBufferSize(&config, &bytes);
- if (result == BAD_VALUE) {
- // Retry with the config suggested by the HAL.
- result = dev->getInputBufferSize(&config, &bytes);
+ ret = BAD_VALUE;
+ for (const AudioHwDevice* dev : mInputBufferSizeOrderedDevs) {
+ ret = getInputBufferSize(dev->hwDevice(), config, &bytes);
+ if (ret == OK) {
+ break;
+ }
}
- if (result != OK || bytes == 0) {
- config = loopConfig;
- continue;
- }
+ if (ret == BAD_VALUE) continue;
+
if (config.sample_rate != sampleRate || config.channel_mask != channelMask ||
config.format != format) {
uint32_t dstChannelCount = audio_channel_count_from_in_mask(channelMask);
@@ -2603,12 +2619,43 @@
}
mAudioHwDevs.add(handle, audioDevice);
+ if (strcmp(name, AUDIO_HARDWARE_MODULE_ID_STUB) != 0) {
+ mInputBufferSizeOrderedDevs.insert(audioDevice);
+ }
ALOGI("loadHwModule() Loaded %s audio interface, handle %d", name, handle);
return audioDevice;
}
+// Sort AudioHwDevice to be traversed in the getInputBufferSize call in the following order:
+// Primary, Usb, Bluetooth, A2DP, other modules, remote submix.
+/* static */
+bool AudioFlinger::inputBufferSizeDevsCmp(const AudioHwDevice* lhs, const AudioHwDevice* rhs) {
+ static const std::map<std::string_view, int> kPriorities = {
+ { AUDIO_HARDWARE_MODULE_ID_PRIMARY, 0 }, { AUDIO_HARDWARE_MODULE_ID_USB, 1 },
+ { AUDIO_HARDWARE_MODULE_ID_BLUETOOTH, 2 }, { AUDIO_HARDWARE_MODULE_ID_A2DP, 3 },
+ { AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX, std::numeric_limits<int>::max() }
+ };
+
+ const std::string_view lhsName = lhs->moduleName();
+ const std::string_view rhsName = rhs->moduleName();
+
+ auto lhsPriority = std::numeric_limits<int>::max() - 1;
+ if (const auto lhsIt = kPriorities.find(lhsName); lhsIt != kPriorities.end()) {
+ lhsPriority = lhsIt->second;
+ }
+ auto rhsPriority = std::numeric_limits<int>::max() - 1;
+ if (const auto rhsIt = kPriorities.find(rhsName); rhsIt != kPriorities.end()) {
+ rhsPriority = rhsIt->second;
+ }
+
+ if (lhsPriority != rhsPriority) {
+ return lhsPriority < rhsPriority;
+ }
+ return lhsName < rhsName;
+}
+
// ----------------------------------------------------------------------------
uint32_t AudioFlinger::getPrimaryOutputSamplingRate() const
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 0f75d6e..39462fc 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -629,6 +629,10 @@
DefaultKeyedVector<audio_module_handle_t, AudioHwDevice*> mAudioHwDevs
GUARDED_BY(hardwareMutex()) {nullptr /* defValue */};
+ static bool inputBufferSizeDevsCmp(const AudioHwDevice* lhs, const AudioHwDevice* rhs);
+ std::set<AudioHwDevice*, decltype(&inputBufferSizeDevsCmp)>
+ mInputBufferSizeOrderedDevs GUARDED_BY(hardwareMutex()) {inputBufferSizeDevsCmp};
+
const sp<DevicesFactoryHalInterface> mDevicesFactoryHal =
DevicesFactoryHalInterface::create();
/* const */ sp<DevicesFactoryHalCallback> mDevicesFactoryHalCallback; // set onFirstRef().