1 files changed, 0 insertions, 33 deletions
diff --git a/audio/5.0/types.hal b/audio/5.0/types.hal
index f58bfb0a7..988f584b6 100644
--- a/audio/5.0/types.hal
+++ b/audio/5.0/types.hal
@@ -122,39 +122,6 @@ enum MessageQueueFlagBits : uint32_t {
     NOT_FULL = 1 << 1
 };
 
-/** Metadata of a playback track for a StreamOut. */
-struct PlaybackTrackMetadata {
-    AudioUsage usage;
-    AudioContentType contentType;
-    /**
-     * Positive linear gain applied to the track samples. 0 being muted and 1 is no attenuation,
-     * 2 means double amplification...
-     * Must not be negative.
-     */
-    float gain;
-};
-
-/** Metadatas of the source of a StreamOut. */
-struct SourceMetadata {
-    vec<PlaybackTrackMetadata> tracks;
-};
-
-/** Metadata of a record track for a StreamIn. */
-struct RecordTrackMetadata {
-    AudioSource source;
-    /**
-     * Positive linear gain applied to the track samples. 0 being muted and 1 is no attenuation,
-     * 2 means double amplification...
-     * Must not be negative.
-     */
-    float gain;
-};
-
-/** Metadatas of the source of a StreamIn. */
-struct SinkMetadata {
-    vec<RecordTrackMetadata> tracks;
-};
-
 /*
  * Microphone information
  *