Support MSD patches with channel index masks
To support MSD patch channel count flexibility, as well as to remove
the need for input & output position mask matching, support MSD audio
patches using channel index masks.
Test: 1. patch channel index mask 6 between MSD and primary HAL
2. atest audiopolicy_tests
Change-Id: I89f29457579d297df7b9908b0cd6df7896440930
diff --git a/media/libaudiofoundation/include/media/AudioContainers.h b/media/libaudiofoundation/include/media/AudioContainers.h
index b6e6c84..6c01e29 100644
--- a/media/libaudiofoundation/include/media/AudioContainers.h
+++ b/media/libaudiofoundation/include/media/AudioContainers.h
@@ -66,6 +66,9 @@
for (const auto &channel : channelMasks) {
if (audio_channel_mask_out_to_in(channel) != AUDIO_CHANNEL_INVALID) {
inMaskSet.insert(audio_channel_mask_out_to_in(channel));
+ } else if (audio_channel_mask_get_representation(channel)
+ == AUDIO_CHANNEL_REPRESENTATION_INDEX) {
+ inMaskSet.insert(channel);
}
}
return inMaskSet;
@@ -76,6 +79,9 @@
for (const auto &channel : channelMasks) {
if (audio_channel_mask_in_to_out(channel) != AUDIO_CHANNEL_INVALID) {
outMaskSet.insert(audio_channel_mask_in_to_out(channel));
+ } else if (audio_channel_mask_get_representation(channel)
+ == AUDIO_CHANNEL_REPRESENTATION_INDEX) {
+ outMaskSet.insert(channel);
}
}
return outMaskSet;
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 7d7ed93..b0c949f 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -68,16 +68,6 @@
// media / notification / system volume.
constexpr float IN_CALL_EARPIECE_HEADROOM_DB = 3.f;
-// Compressed formats for MSD module, ordered from most preferred to least preferred.
-static const std::vector<audio_format_t> msdCompressedFormatsOrder = {{
- AUDIO_FORMAT_IEC60958, AUDIO_FORMAT_MAT_2_1, AUDIO_FORMAT_MAT_2_0, AUDIO_FORMAT_E_AC3,
- AUDIO_FORMAT_AC3, AUDIO_FORMAT_PCM_16_BIT }};
-// Channel masks for MSD module, 3D > 2D > 1D ordering (most preferred to least preferred).
-static const std::vector<audio_channel_mask_t> msdSurroundChannelMasksOrder = {{
- AUDIO_CHANNEL_OUT_3POINT1POINT2, AUDIO_CHANNEL_OUT_3POINT0POINT2,
- AUDIO_CHANNEL_OUT_2POINT1POINT2, AUDIO_CHANNEL_OUT_2POINT0POINT2,
- AUDIO_CHANNEL_OUT_5POINT1, AUDIO_CHANNEL_OUT_STEREO }};
-
template <typename T>
bool operator== (const SortedVector<T> &left, const SortedVector<T> &right)
{
@@ -1644,10 +1634,28 @@
const AudioProfileVector &sourceProfiles, const AudioProfileVector &sinkProfiles,
audio_port_config *sourceConfig, audio_port_config *sinkConfig) const
{
+ // Compressed formats for MSD module, ordered from most preferred to least preferred.
+ static const std::vector<audio_format_t> formatsOrder = {{
+ AUDIO_FORMAT_IEC60958, AUDIO_FORMAT_MAT_2_1, AUDIO_FORMAT_MAT_2_0, AUDIO_FORMAT_E_AC3,
+ AUDIO_FORMAT_AC3, AUDIO_FORMAT_PCM_16_BIT }};
+ static const std::vector<audio_channel_mask_t> channelMasksOrder = [](){
+ // Channel position masks for MSD module, 3D > 2D > 1D ordering (most preferred to least
+ // preferred).
+ std::vector<audio_channel_mask_t> masks = {{
+ AUDIO_CHANNEL_OUT_3POINT1POINT2, AUDIO_CHANNEL_OUT_3POINT0POINT2,
+ AUDIO_CHANNEL_OUT_2POINT1POINT2, AUDIO_CHANNEL_OUT_2POINT0POINT2,
+ AUDIO_CHANNEL_OUT_5POINT1, AUDIO_CHANNEL_OUT_STEREO }};
+ // insert index masks (higher counts most preferred) as preferred over position masks
+ for (int i = 1; i <= AUDIO_CHANNEL_COUNT_MAX; i++) {
+ masks.insert(
+ masks.begin(), audio_channel_mask_for_index_assignment_from_count(i));
+ }
+ return masks;
+ }();
+
struct audio_config_base bestSinkConfig;
- status_t result = findBestMatchingOutputConfig(sourceProfiles, sinkProfiles,
- msdCompressedFormatsOrder, msdSurroundChannelMasksOrder,
- true /*preferHigherSamplingRates*/, bestSinkConfig);
+ status_t result = findBestMatchingOutputConfig(sourceProfiles, sinkProfiles, formatsOrder,
+ channelMasksOrder, true /*preferHigherSamplingRates*/, bestSinkConfig);
if (result != NO_ERROR) {
ALOGD("%s() no matching config found for sink, hwAvSync: %d",
__func__, hwAvSync);
@@ -1669,7 +1677,10 @@
}
sourceConfig->sample_rate = bestSinkConfig.sample_rate;
// Specify exact channel mask to prevent guessing by bit count in PatchPanel.
- sourceConfig->channel_mask = audio_channel_mask_out_to_in(bestSinkConfig.channel_mask);
+ sourceConfig->channel_mask =
+ audio_channel_mask_get_representation(bestSinkConfig.channel_mask)
+ == AUDIO_CHANNEL_REPRESENTATION_INDEX ?
+ bestSinkConfig.channel_mask : audio_channel_mask_out_to_in(bestSinkConfig.channel_mask);
sourceConfig->format = bestSinkConfig.format;
// Copy input stream directly without any processing (e.g. resampling).
sourceConfig->flags.input = static_cast<audio_input_flags_t>(
diff --git a/services/audiopolicy/tests/audiopolicymanager_tests.cpp b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
index d51c57c..c341b32 100644
--- a/services/audiopolicy/tests/audiopolicymanager_tests.cpp
+++ b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
@@ -446,7 +446,7 @@
sp<AudioProfile> ac3OutputProfile = new AudioProfile(
AUDIO_FORMAT_AC3, AUDIO_CHANNEL_OUT_5POINT1, k48000SamplingRate);
sp<AudioProfile> iec958OutputProfile = new AudioProfile(
- AUDIO_FORMAT_IEC60958, AUDIO_CHANNEL_OUT_STEREO, k48000SamplingRate);
+ AUDIO_FORMAT_IEC60958, AUDIO_CHANNEL_INDEX_MASK_24, k48000SamplingRate);
mMsdOutputDevice->addAudioProfile(pcmOutputProfile);
mMsdOutputDevice->addAudioProfile(ac3OutputProfile);
mMsdOutputDevice->addAudioProfile(iec958OutputProfile);
@@ -519,7 +519,7 @@
// Add HDMI input device with IEC60958 profile for HDMI in -> MSD patching.
mHdmiInputDevice = new DeviceDescriptor(AUDIO_DEVICE_IN_HDMI);
sp<AudioProfile> iec958InputProfile = new AudioProfile(
- AUDIO_FORMAT_IEC60958, AUDIO_CHANNEL_IN_STEREO, k48000SamplingRate);
+ AUDIO_FORMAT_IEC60958, AUDIO_CHANNEL_INDEX_MASK_24, k48000SamplingRate);
mHdmiInputDevice->addAudioProfile(iec958InputProfile);
config.addDevice(mHdmiInputDevice);
sp<InputProfile> hdmiInputProfile = new InputProfile("hdmi input");
@@ -677,8 +677,8 @@
ASSERT_EQ(AUDIO_PORT_ROLE_SINK, patch->mPatch.sinks[0].role);
ASSERT_EQ(AUDIO_FORMAT_IEC60958, patch->mPatch.sources[0].format);
ASSERT_EQ(AUDIO_FORMAT_IEC60958, patch->mPatch.sinks[0].format);
- ASSERT_EQ(AUDIO_CHANNEL_IN_STEREO, patch->mPatch.sources[0].channel_mask);
- ASSERT_EQ(AUDIO_CHANNEL_OUT_STEREO, patch->mPatch.sinks[0].channel_mask);
+ ASSERT_EQ(AUDIO_CHANNEL_INDEX_MASK_24, patch->mPatch.sources[0].channel_mask);
+ ASSERT_EQ(AUDIO_CHANNEL_INDEX_MASK_24, patch->mPatch.sinks[0].channel_mask);
ASSERT_EQ(k48000SamplingRate, patch->mPatch.sources[0].sample_rate);
ASSERT_EQ(k48000SamplingRate, patch->mPatch.sinks[0].sample_rate);
ASSERT_EQ(1, patchCount.deltaFromSnapshot());
@@ -754,7 +754,7 @@
audio_config_base_t msdDirectConfig2 = AUDIO_CONFIG_BASE_INITIALIZER;
msdDirectConfig2.format = AUDIO_FORMAT_IEC60958;
msdDirectConfig2.sample_rate = 48000;
- msdDirectConfig2.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+ msdDirectConfig2.channel_mask = AUDIO_CHANNEL_INDEX_MASK_24;
audio_config_base_t msdNonDirectConfig = AUDIO_CONFIG_BASE_INITIALIZER;
msdNonDirectConfig.format = AUDIO_FORMAT_PCM_16_BIT;
@@ -821,7 +821,7 @@
audio_config_t msdDirectConfig2 = AUDIO_CONFIG_INITIALIZER;
msdDirectConfig2.format = AUDIO_FORMAT_IEC60958;
msdDirectConfig2.sample_rate = 48000;
- msdDirectConfig2.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+ msdDirectConfig2.channel_mask = AUDIO_CHANNEL_INDEX_MASK_24;
audio_config_t msdNonDirectConfig = AUDIO_CONFIG_INITIALIZER;
msdNonDirectConfig.format = AUDIO_FORMAT_PCM_16_BIT;