audio HAL V7: Update track metadata
Add channel mask and audio attributes tags to playback
and record track metadata sent to audio HAL.
The legacy HAL wrapper supports older legacy HAL versions
by sending partial metadata when the legay HAL version is
less than 3.2.
Bug: 168751366
Test: make
Change-Id: Iba3ee3b669e4300201374d4a0d5cf45a04872274
Merged-In: Iba3ee3b669e4300201374d4a0d5cf45a04872274
diff --git a/audio/common/7.0/types.hal b/audio/common/7.0/types.hal
index ed56c73..b14ebd4 100644
--- a/audio/common/7.0/types.hal
+++ b/audio/common/7.0/types.hal
@@ -274,10 +274,21 @@
uint64_t frameCount;
};
+/**
+ * AudioTag is an additional use case qualifier complementing
+ * AudioUsage and AudioContentType. Tags are set by vendor specific applications
+ * and must be prefixed by "VX_". Vendor must namespace their tag
+ * names to avoid conflicts.
+ */
+typedef string AudioTag;
+
/** Metadata of a playback track for a StreamOut. */
struct PlaybackTrackMetadata {
AudioUsage usage;
AudioContentType contentType;
+ /** Tags from AudioTrack audio atttributes */
+ vec<AudioTag> tags;
+ AudioChannelMask channelMask;
/**
* Positive linear gain applied to the track samples. 0 being muted and 1 is no attenuation,
* 2 means double amplification...
@@ -294,6 +305,9 @@
/** Metadata of a record track for a StreamIn. */
struct RecordTrackMetadata {
AudioSource source;
+ /** Tags from AudioTrack audio atttributes */
+ vec<AudioTag> tags;
+ AudioChannelMask channelMask;
/**
* Positive linear gain applied to the track samples. 0 being muted and 1 is no attenuation,
* 2 means double amplification...
diff --git a/audio/common/all-versions/default/HidlUtils.h b/audio/common/all-versions/default/HidlUtils.h
index a0bd1bc..d8b7ba4 100644
--- a/audio/common/all-versions/default/HidlUtils.h
+++ b/audio/common/all-versions/default/HidlUtils.h
@@ -77,6 +77,8 @@
#endif
#if MAJOR_VERSION >= 7
+ static constexpr char sAudioTagSeparator = ';';
+
static status_t audioChannelMaskFromHal(audio_channel_mask_t halChannelMask, bool isInput,
AudioChannelMask* channelMask);
static status_t audioChannelMasksFromHal(const std::vector<std::string>& halChannelMasks,
@@ -126,6 +128,7 @@
struct audio_port_config_device_ext* device,
struct audio_port_config_mix_ext* mix,
struct audio_port_config_session_ext* session);
+
#endif // MAJOR_VERSION >= 7
// V4 and below have DeviceAddress defined in the 'core' interface.