android,linux: fix random volume jumps (#192)

kavishdevar · web-flow · commit 75fa80c17e02 · 2025-08-25T21:25:29.000+05:30
* android: update feature flags packet data byte to remove adaptive volume
* linux: update feature flags to prevent volume jumps
diff --git a/android/app/src/main/java/me/kavishdevar/librepods/utils/AACPManager.kt b/android/app/src/main/java/me/kavishdevar/librepods/utils/AACPManager.kt
@@ -389,7 +389,7 @@ class AACPManager {
 
     fun createSetFeatureFlagsPacket(): ByteArray {
         val opcode = byteArrayOf(Opcodes.SET_FEATURE_FLAGS, 0x00)
-        val data = byteArrayOf(0xFF.toByte(), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
+        val data = byteArrayOf(0xD7.toByte(), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
         return opcode + data
     }
 
diff --git a/linux/airpods_packets.h b/linux/airpods_packets.h
@@ -121,7 +121,7 @@ namespace AirPodsPackets
     namespace Connection
     {
         static const QByteArray HANDSHAKE = QByteArray::fromHex("00000400010002000000000000000000");
-        static const QByteArray SET_SPECIFIC_FEATURES = QByteArray::fromHex("040004004d00ff00000000000000");
+        static const QByteArray SET_SPECIFIC_FEATURES = QByteArray::fromHex("040004004d00d700000000000000");
         static const QByteArray REQUEST_NOTIFICATIONS = QByteArray::fromHex("040004000f00ffffffffff");
         static const QByteArray AIRPODS_DISCONNECTED = QByteArray::fromHex("00010000");
     }
@@ -221,4 +221,4 @@ namespace AirPodsPackets
     }
 }
 
-#endif // AIRPODS_PACKETS_H
+#endif // AIRPODS_PACKETS_H

Original file line number	Diff line number	Diff line change
`@@ -389,7 +389,7 @@ class AACPManager {`
`389`	`389`
`390`	`390`	`fun createSetFeatureFlagsPacket(): ByteArray {`
`391`	`391`	`val opcode = byteArrayOf(Opcodes.SET_FEATURE_FLAGS, 0x00)`
`392`		`- val data = byteArrayOf(0xFF.toByte(), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)`
	`392`	`+ val data = byteArrayOf(0xD7.toByte(), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)`
`393`	`393`	`return opcode + data`
`394`	`394`	`}`
`395`	`395`
Original file line number	Diff line number	Diff line change
`@@ -121,7 +121,7 @@ namespace AirPodsPackets`
`121`	`121`	`namespace Connection`
`122`	`122`	`{`
`123`	`123`	`static const QByteArray HANDSHAKE = QByteArray::fromHex("00000400010002000000000000000000");`
`124`		`- static const QByteArray SET_SPECIFIC_FEATURES = QByteArray::fromHex("040004004d00ff00000000000000");`
	`124`	`+ static const QByteArray SET_SPECIFIC_FEATURES = QByteArray::fromHex("040004004d00d700000000000000");`
`125`	`125`	`static const QByteArray REQUEST_NOTIFICATIONS = QByteArray::fromHex("040004000f00ffffffffff");`
`126`	`126`	`static const QByteArray AIRPODS_DISCONNECTED = QByteArray::fromHex("00010000");`
`127`	`127`	`}`
`@@ -221,4 +221,4 @@ namespace AirPodsPackets`
`221`	`221`	`}`
`222`	`222`	`}`
`223`	`223`
`224`		`-#endif // AIRPODS_PACKETS_H`
	`224`	`+#endif // AIRPODS_PACKETS_H`