initial commit

app/src/main/c/bluez-5.60/android/hal-audio.h

@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+/*
+ * Copyright (C) 2013 Intel Corporation
+ *
+ */
+
+#include <time.h>
+#include <hardware/audio.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+
+struct rtp_header {
+	unsigned cc:4;
+	unsigned x:1;
+	unsigned p:1;
+	unsigned v:2;
+
+	unsigned pt:7;
+	unsigned m:1;
+
+	uint16_t sequence_number;
+	uint32_t timestamp;
+	uint32_t ssrc;
+	uint32_t csrc[0];
+} __attribute__ ((packed));
+
+#elif __BYTE_ORDER == __BIG_ENDIAN
+
+struct rtp_header {
+	unsigned v:2;
+	unsigned p:1;
+	unsigned x:1;
+	unsigned cc:4;
+
+	unsigned m:1;
+	unsigned pt:7;
+
+	uint16_t sequence_number;
+	uint32_t timestamp;
+	uint32_t ssrc;
+	uint32_t csrc[0];
+} __attribute__ ((packed));
+
+#else
+#error "Unknown byte order"
+#endif
+
+struct media_packet {
+	uint8_t data[0];
+};
+
+struct media_packet_rtp {
+	struct rtp_header hdr;
+	uint8_t data[0];
+};
+
+struct audio_input_config {
+	uint32_t rate;
+	uint32_t channels;
+	audio_format_t format;
+};
+
+struct audio_codec {
+	uint8_t type;
+	bool use_rtp;
+
+	bool (*load) (void);
+	void (*unload) (void);
+
+	int (*get_presets) (struct audio_preset *preset, size_t *len);
+
+	bool (*init) (struct audio_preset *preset, uint16_t mtu,
+				void **codec_data);
+	bool (*cleanup) (void *codec_data);
+	bool (*get_config) (void *codec_data,
+					struct audio_input_config *config);
+	size_t (*get_buffer_size) (void *codec_data);
+	size_t (*get_mediapacket_duration) (void *codec_data);
+	ssize_t (*encode_mediapacket) (void *codec_data, const uint8_t *buffer,
+					size_t len, struct media_packet *mp,
+					size_t mp_data_len, size_t *written);
+	bool (*update_qos) (void *codec_data, uint8_t op);
+};
+
+#define QOS_POLICY_DEFAULT	0x00
+#define QOS_POLICY_DECREASE	0x01
+
+typedef const struct audio_codec * (*audio_codec_get_t) (void);
+
+const struct audio_codec *codec_sbc(void);
+const struct audio_codec *codec_aptx(void);