---
profiles/audio/a2dp-codecs.h | 33 ++++++++++++++++++++++++++++-----
1 file changed, 28 insertions(+), 5 deletions(-)
diff --git a/profiles/audio/a2dp-codecs.h b/profiles/audio/a2dp-codecs.h
index 1106bd2..4d2584d 100644
--- a/profiles/audio/a2dp-codecs.h
+++ b/profiles/audio/a2dp-codecs.h
@@ -130,6 +130,22 @@
.frequency1 = (f >> 4) & 0xff, \
.frequency2 = f & 0x0f,
+#define APTX_VENDOR_ID 0x0000004f
+#define APTX_CODEC_ID 0x0001
+
+#define APTX_CHANNEL_MODE_MONO 0x01
+#define APTX_CHANNEL_MODE_STEREO 0x02
+
+#define APTX_SAMPLING_FREQ_16000 0x08
+#define APTX_SAMPLING_FREQ_32000 0x04
+#define APTX_SAMPLING_FREQ_44100 0x02
+#define APTX_SAMPLING_FREQ_48000 0x01
+
+typedef struct {
+ uint32_t vendor_id;
+ uint16_t codec_id;
+} __attribute__ ((packed)) a2dp_vendor_codec_t;
+
#if __BYTE_ORDER == __LITTLE_ENDIAN
typedef struct {
@@ -164,6 +180,12 @@ typedef struct {
uint8_t bitrate3;
} __attribute__ ((packed)) a2dp_aac_t;
+typedef struct {
+ a2dp_vendor_codec_t info;
+ uint8_t channel_mode:4;
+ uint8_t frequency:4;
+} __attribute__ ((packed)) a2dp_aptx_t;
+
#elif __BYTE_ORDER == __BIG_ENDIAN
typedef struct {
@@ -198,11 +220,12 @@ typedef struct {
uint8_t bitrate3;
} __attribute__ ((packed)) a2dp_aac_t;
+typedef struct {
+ a2dp_vendor_codec_t info;
+ uint8_t frequency:4;
+ uint8_t channel_mode:4;
+} __attribute__ ((packed)) a2dp_aptx_t;
+
#else
#error "Unknown byte order"
#endif
-
-typedef struct {
- uint32_t vendor_id;
- uint16_t codec_id;
-} __attribute__ ((packed)) a2dp_vendor_codec_t;
--
1.9.3
--
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