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btstack/example/avrcp_browsing_client.c
Matthias Ringwald 0bd372cf65 fix static function prototypes
2021-02-02 15:13:51 +01:00

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/*
* Copyright (C) 2016 BlueKitchen GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
#define BTSTACK_FILE__ "avrcp_browsing_client.c"
/*
* avrcp_browsing_client.c
*/
// *****************************************************************************
/* EXAMPLE_START(avrcp_browsing_client): AVRCP Browsing - Browse Media Players and Media Information
*
* @text This example demonstrates how to use the AVRCP Controller Browsing service to
* browse madia players and media information on a remote AVRCP Source device.
*
* @text To test with a remote device, e.g. a mobile phone,
* pair from the remote device with the demo, then use the UI for browsing. If HAVE_BTSTACK_STDIN is set,
* press SPACE on the console to show the available AVDTP and AVRCP commands.
*
*/
// *****************************************************************************
#include <stdint.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "btstack.h"
#ifdef HAVE_BTSTACK_STDIN
#include "btstack_stdin.h"
#endif
#define AVRCP_BROWSING_ENABLED
#define AVRCP_BROWSING_MAX_PLAYERS 10
#define AVRCP_BROWSING_MAX_FOLDERS 10
#define AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN 30
#define AVRCP_BROWSING_MAX_MEDIA_ITEMS 10
#ifdef HAVE_BTSTACK_STDIN
// mac 2011: static bd_addr_t remote = {0x04, 0x0C, 0xCE, 0xE4, 0x85, 0xD3};
// pts: static bd_addr_t remote = {0x00, 0x1B, 0xDC, 0x08, 0x0A, 0xA5};
// mac 2013:
// static const char * device_addr_string = "84:38:35:65:d1:15";
// iPhone 5S: static const char * device_addr_string = "54:E4:3A:26:A2:39";
// phone 2013:
// static const char * device_addr_string = "B0:34:95:CB:97:C4";
// iPod
// static const char * device_addr_string = "B0:34:95:CB:97:C4";
// iPhone
static const char * device_addr_string = "6C:72:E7:10:22:EE";
static bd_addr_t device_addr;
#endif
typedef enum {
AVRCP_BROWSING_STATE_IDLE,
AVRCP_BROWSING_STATE_W4_GET_PLAYERS,
AVRCP_BROWSING_STATE_W4_SET_PLAYER,
AVRCP_BROWSING_STATE_READY
} avrcp_browsing_state_t;
typedef struct {
uint16_t charset;
uint8_t depth;
uint16_t name_len;
char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
} avrcp_browsing_root_folder_t;
typedef struct {
uint8_t uid[8];
uint16_t name_len;
char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
} avrcp_browsable_item_t;
typedef struct {
uint16_t player_id;
uint8_t major_player_type;
uint32_t player_sub_type;
uint8_t play_status;
uint8_t feature_bitmask[16];
uint16_t charset;
uint16_t name_len;
char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
} avrcp_browsable_media_player_item_t;
typedef struct {
uint32_t id;
uint16_t charset;
uint16_t value_len;
char value[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
} avrcp_browsable_media_element_item_attribute_t;
typedef struct {
uint8_t uid[8];
uint8_t media_type;
uint16_t charset;
uint16_t name_len;
char name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
uint8_t num_attributes;
} avrcp_browsable_media_element_item_t;
static avrcp_browsing_state_t browsing_state = AVRCP_BROWSING_STATE_IDLE;
static uint16_t avrcp_cid = 0;
static bool avrcp_connected = false;
static uint16_t browsing_cid = 0;
static bool browsing_connected = false;
static uint8_t sdp_avrcp_browsing_controller_service_buffer[200];
static uint8_t sdp_avdtp_sink_service_buffer[150];
static uint16_t a2dp_cid = 0;
static uint8_t a2dp_local_seid = 0;
static uint8_t media_sbc_codec_capabilities[] = {
0xFF,//(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO,
0xFF,//(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS,
2, 53
};
static uint8_t media_sbc_codec_configuration[] = {
(AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO,
(AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_LOUDNESS,
2, 53
};
static bool browsing_query_active = false;
// static avrcp_media_item_context_t media_item_context;
static int playable_folder_index = 0;
static uint16_t browsing_uid_counter = 0;
static uint8_t parent_folder_set = 0;
static uint8_t parent_folder_uid[8];
static char parent_folder_name[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
static avrcp_browsable_item_t folders[AVRCP_BROWSING_MAX_FOLDERS];
static int folder_index = -1;
static avrcp_browsable_media_element_item_t media_element_items[AVRCP_BROWSING_MAX_MEDIA_ITEMS];
static int media_element_item_index = -1;
static avrcp_browsable_media_player_item_t media_player_items[AVRCP_BROWSING_MAX_MEDIA_ITEMS];
static int media_player_item_index = -1;
static btstack_packet_callback_registration_t hci_event_callback_registration;
static uint8_t ertm_buffer[10000];
static l2cap_ertm_config_t ertm_config = {
1, // ertm mandatory
2, // max transmit, some tests require > 1
2000,
12000,
144, // l2cap ertm mtu
4,
4,
0, // No FCS
};
static inline int next_index(int * index, int max_value){
if ((*index) < max_value){
(*index)++;
} else {
(*index) = 0;
}
return (*index);
}
static int next_folder_index(void){
return next_index(&folder_index, AVRCP_BROWSING_MAX_FOLDERS);
}
static int next_media_element_item_index(void){
return next_index(&media_element_item_index, AVRCP_BROWSING_MAX_MEDIA_ITEMS);
}
static int next_media_player_item_index(void){
return next_index(&media_player_item_index, AVRCP_BROWSING_MAX_MEDIA_ITEMS);
}
/* @section Main Application Setup
*
* @text The Listing MainConfiguration shows how to setup AVRCP Controller Browsing service.
* To announce AVRCP Controller Browsing service, you need to create corresponding
* SDP record and register it with the SDP service.
* You'll also need to register several packet handlers:
* - stdin_process callback - used to trigger AVRCP commands, such are get media players, playlists, albums, etc. Requires HAVE_BTSTACK_STDIN.
* - avrcp_browsing_controller_packet_handler - used to receive answers for AVRCP commands.
*
*/
/* LISTING_START(MainConfiguration): Setup Audio Sink and AVRCP Controller services */
static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
#ifdef HAVE_BTSTACK_STDIN
static void stdin_process(char cmd);
#endif
int btstack_main(int argc, const char * argv[]);
int btstack_main(int argc, const char * argv[]){
(void)argc;
(void)argv;
// Initialize L2CAP.
l2cap_init();
a2dp_sink_init();
a2dp_sink_register_packet_handler(&a2dp_sink_packet_handler);
avdtp_stream_endpoint_t * local_stream_endpoint = a2dp_sink_create_stream_endpoint(AVDTP_AUDIO,
AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities),
media_sbc_codec_configuration, sizeof(media_sbc_codec_configuration));
if (!local_stream_endpoint){
printf("A2DP Sink: not enough memory to create local stream endpoint\n");
return 1;
}
a2dp_local_seid = avdtp_local_seid(local_stream_endpoint);
// Initialize AVRCP service.
avrcp_init();
// Initialize AVRCP Controller & Target Service.
avrcp_controller_init();
avrcp_target_init();
avrcp_register_packet_handler(&avrcp_packet_handler);
avrcp_controller_register_packet_handler(&avrcp_packet_handler);
avrcp_target_register_packet_handler(&avrcp_packet_handler);
// Initialize AVRCP Browsing Service.
avrcp_browsing_init();
avrcp_browsing_controller_init();
avrcp_browsing_target_init();
// Register for HCI events.
avrcp_browsing_controller_register_packet_handler(&avrcp_browsing_controller_packet_handler);
avrcp_browsing_target_register_packet_handler(&avrcp_browsing_controller_packet_handler);
avrcp_browsing_register_packet_handler(&avrcp_browsing_controller_packet_handler);
// Initialize SDP.
sdp_init();
// setup AVDTP sink
memset(sdp_avdtp_sink_service_buffer, 0, sizeof(sdp_avdtp_sink_service_buffer));
a2dp_sink_create_sdp_record(sdp_avdtp_sink_service_buffer, 0x10001, AVDTP_SINK_FEATURE_MASK_HEADPHONE, NULL, NULL);
sdp_register_service(sdp_avdtp_sink_service_buffer);
// Create AVRCP service record and register it with SDP.
memset(sdp_avrcp_browsing_controller_service_buffer, 0, sizeof(sdp_avrcp_browsing_controller_service_buffer));
uint16_t supported_features = AVRCP_FEATURE_MASK_CATEGORY_PLAYER_OR_RECORDER;
#ifdef AVRCP_BROWSING_ENABLED
supported_features |= AVRCP_FEATURE_MASK_BROWSING;
#endif
avrcp_controller_create_sdp_record(sdp_avrcp_browsing_controller_service_buffer, 0x10002, supported_features, NULL, NULL);
sdp_register_service(sdp_avrcp_browsing_controller_service_buffer);
// Set local name with a template Bluetooth address, that will be automatically
// replaced with a actual address once it is available, i.e. when BTstack boots
// up and starts talking to a Bluetooth module.
gap_set_local_name("AVRCP Browsing Client 00:00:00:00:00:00");
gap_discoverable_control(1);
gap_set_class_of_device(0x200408);
// Register for HCI events.
hci_event_callback_registration.callback = &avrcp_browsing_controller_packet_handler;
hci_add_event_handler(&hci_event_callback_registration);
#ifdef HAVE_BTSTACK_STDIN
// Parse human readable Bluetooth address.
sscanf_bd_addr(device_addr_string, device_addr);
btstack_stdin_setup(stdin_process);
#endif
printf("Starting BTstack ...\n");
hci_power_control(HCI_POWER_ON);
return 0;
}
/* LISTING_END */
static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
uint16_t local_cid;
uint8_t status = 0xFF;
bd_addr_t adress;
if (packet_type != HCI_EVENT_PACKET) return;
if (hci_event_packet_get_type(packet) != HCI_EVENT_AVRCP_META) return;
switch (packet[2]){
case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: {
local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet);
status = avrcp_subevent_connection_established_get_status(packet);
if (status != ERROR_CODE_SUCCESS){
printf("AVRCP: Connection failed: status 0x%02x\n", status);
avrcp_cid = 0;
return;
}
avrcp_cid = local_cid;
avrcp_connected = true;
avrcp_subevent_connection_established_get_bd_addr(packet, adress);
printf("AVRCP: Connected to %s, cid 0x%02x\n", bd_addr_to_str(adress), avrcp_cid);
return;
}
case AVRCP_SUBEVENT_CONNECTION_RELEASED:
printf("AVRCP: Channel released: cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet));
avrcp_cid = 0;
avrcp_connected = false;
return;
default:
break;
}
}
static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
bd_addr_t address;
uint8_t status;
if (packet_type != HCI_EVENT_PACKET) return;
if (hci_event_packet_get_type(packet) != HCI_EVENT_A2DP_META) return;
switch (packet[2]){
case A2DP_SUBEVENT_STREAM_ESTABLISHED:
a2dp_subevent_stream_established_get_bd_addr(packet, address);
status = a2dp_subevent_stream_established_get_status(packet);
if (status){
printf("A2DP Sink : Streaming connection failed, status 0x%02x\n", status);
break;
}
a2dp_cid = a2dp_subevent_stream_established_get_a2dp_cid(packet);
memcpy(device_addr, address, 6);
printf("A2DP Sink: Connection established, address %s, a2dp_cid 0x%02x\n", bd_addr_to_str(address), a2dp_cid);
break;
case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED:
printf("A2DP Sink: Connection released\n");
break;
default:
break;
}
}
static void avrcp_browsing_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
bd_addr_t address;
uint8_t status;
uint16_t pos = 0;
uint16_t local_cid;
// printf("avrcp_browsing_controller_packet_handler packet type 0x%02X, subevent 0x%02X\n", packet_type, packet[2]);
switch (packet_type) {
case HCI_EVENT_PACKET:
switch (packet[0]){
case HCI_EVENT_AVRCP_META:
switch (packet[2]){
case AVRCP_SUBEVENT_BROWSING_CONNECTION_ESTABLISHED: {
local_cid = avrcp_subevent_browsing_connection_established_get_browsing_cid(packet);
status = avrcp_subevent_browsing_connection_established_get_status(packet);
if (status != ERROR_CODE_SUCCESS){
printf("AVRCP: Connection failed: status 0x%02x\n", status);
browsing_cid = 0;
return;
}
avrcp_subevent_browsing_connection_established_get_bd_addr(packet, address);
browsing_cid = local_cid;
browsing_connected = true;
printf("AVRCP Browsing: Connection established, address %s, browsing_cid 0x%02x\n", bd_addr_to_str(address), browsing_cid);
return;
}
case AVRCP_SUBEVENT_BROWSING_CONNECTION_RELEASED:
printf("AVRCP: Connection released, cid 0x%02x\n", avrcp_subevent_browsing_connection_released_get_browsing_cid(packet));
browsing_cid = 0;
browsing_connected = false;
return;
case AVRCP_SUBEVENT_BROWSING_DONE:
browsing_query_active = 0;
browsing_uid_counter = 0;
if (avrcp_subevent_browsing_done_get_browsing_status(packet) != AVRCP_BROWSING_ERROR_CODE_SUCCESS){
printf("AVRCP Browsing query done with browsing status 0x%02x, bluetooth status 0x%02x.\n",
avrcp_subevent_browsing_done_get_browsing_status(packet),
avrcp_subevent_browsing_done_get_bluetooth_status(packet));
return;
}
browsing_uid_counter = avrcp_subevent_browsing_done_get_uid_counter(packet);
printf("DONE, browsing_uid_counter %d.\n", browsing_uid_counter);
switch (browsing_state){
case AVRCP_BROWSING_STATE_W4_GET_PLAYERS:
if (media_player_item_index < 0) {
printf("Get media players first\n");
break;
}
printf("Set browsed player\n");
browsing_state = AVRCP_BROWSING_STATE_W4_SET_PLAYER;
status = avrcp_browsing_controller_set_browsed_player(browsing_cid, media_player_items[0].player_id);
if (status != ERROR_CODE_SUCCESS){
printf("Could not set player, status 0x%02X\n", status);
status = AVRCP_BROWSING_STATE_W4_GET_PLAYERS;
break;
}
break;
case AVRCP_BROWSING_STATE_W4_SET_PLAYER:
browsing_state = AVRCP_BROWSING_STATE_READY;
break;
default:
break;
}
break;
default:
break;
}
default:
break;
}
break;
case AVRCP_BROWSING_DATA_PACKET:
browsing_query_active = 1;
avrcp_browsing_item_type_t data_type = (avrcp_browsing_item_type_t)packet[pos++];
switch (data_type){
case AVRCP_BROWSING_MEDIA_ROOT_FOLDER:{
uint16_t folder_name_length = size - pos;
char folder_name[AVRCP_MAX_FOLDER_NAME_SIZE];
memcpy(folder_name, &packet[pos], folder_name_length);
folder_name[folder_name_length] = 0;
printf("Found root folder: name %s \n", folder_name);
break;
}
case AVRCP_BROWSING_FOLDER_ITEM:{
int index = next_folder_index();
memcpy(folders[index].uid, packet+pos, 8);
uint32_t folder_uid_high = big_endian_read_32(packet, pos);
pos += 4;
uint32_t folder_uid_low = big_endian_read_32(packet, pos);
pos += 4;
avrcp_browsing_folder_type_t folder_type = packet[pos++];
uint8_t is_playable = packet[pos++];
uint16_t charset = big_endian_read_16(packet, pos);
pos += 2;
uint16_t displayable_name_length = big_endian_read_16(packet, pos);
pos += 2;
char value[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
memset(value, 0, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN);
uint16_t value_len = btstack_min(displayable_name_length, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN - 1);
memcpy(value, packet+pos, value_len);
printf("Folder UID 0x%08" PRIx32 "%08" PRIx32 ", type 0x%02x, is_playable %d, charset 0x%02x, name %s\n",
folder_uid_high, folder_uid_low, folder_type, is_playable, charset, value);
if (is_playable){
playable_folder_index = index;
}
memcpy(folders[index].name, value, value_len);
folders[index].name_len = value_len;
break;
}
case AVRCP_BROWSING_MEDIA_PLAYER_ITEM:{
printf("Received media player item: ");
uint16_t player_id = big_endian_read_16(packet, pos);
pos += 2;
avrcp_browsing_media_player_major_type_t major_type = packet[pos++];
avrcp_browsing_media_player_subtype_t subtype = big_endian_read_32(packet, pos);
pos += 4;
status = packet[pos++];
uint8_t feature_bitmask[16];
memcpy(feature_bitmask, packet, 16);
pos += 16;
printf("player ID 0x%04x, major_type %d, subtype %d, status %d\n", player_id, major_type, subtype, status);
media_player_items[next_media_player_item_index()].player_id = player_id;
break;
}
case AVRCP_BROWSING_MEDIA_ELEMENT_ITEM:{
int index = next_media_element_item_index();
memcpy(media_element_items[index].uid, packet+pos, 8);
printf("Received media element item UID (index %d): ", index);
// uint32_t media_uid_high = big_endian_read_32(packet, pos);
pos += 4;
// uint32_t media_uid_low = big_endian_read_32(packet, pos+4);
pos += 4;
avrcp_browsing_media_type_t media_type = packet[pos++];
uint16_t charset = big_endian_read_16(packet, pos);
pos += 2;
uint16_t displayable_name_length = big_endian_read_16(packet, pos);
pos += 2;
char value[AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN];
memset(value, 0, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN);
uint16_t value_len = btstack_min(displayable_name_length, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN - 1);
memcpy(value, packet+pos, value_len);
memcpy(media_element_items[index].name, value, value_len);
pos += displayable_name_length;
// printf("Media UID: 0x%08" PRIx32 "%08" PRIx32 ", media_type 0x%02x, charset 0x%02x, actual len %d, name %s\n", media_uid_high, media_uid_low, media_type, charset, value_len, value);
printf_hexdump(media_element_items[index].uid, 8);
uint8_t num_attributes = packet[pos++];
printf(" Media type 0x%02x, charset 0x%02x, actual len %d, name %s, num attributes %d:\n", media_type, charset, value_len, value, num_attributes);
avrcp_media_item_context_t media_item_context;
for (avrcp_media_item_iterator_init(&media_item_context, size-pos, packet+pos); avrcp_media_item_iterator_has_more(&media_item_context); avrcp_media_item_iterator_next(&media_item_context)){
uint32_t attr_id = avrcp_media_item_iterator_get_attr_id(&media_item_context);
uint16_t attr_charset = avrcp_media_item_iterator_get_attr_charset(&media_item_context);
uint16_t attr_value_length = avrcp_media_item_iterator_get_attr_value_len(&media_item_context);
const uint8_t * attr_value = avrcp_media_item_iterator_get_attr_value(&media_item_context);
memset(value, 0, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN);
value_len = btstack_min(attr_value_length, AVRCP_BROWSING_MAX_BROWSABLE_ITEM_NAME_LEN - 1);
memcpy(value, attr_value, value_len);
printf(" - attr ID 0x%08" PRIx32 ", charset 0x%02x, actual len %d, name %s\n", attr_id, attr_charset, value_len, value);
}
break;
}
case AVRCP_BROWSING_MEDIA_ELEMENT_ITEM_ATTRIBUTE:{
uint8_t num_attributes = packet[pos++];
printf("Num media attributes %d:\n", num_attributes);
avrcp_media_item_context_t media_item_context;
for (avrcp_media_item_iterator_init(&media_item_context, size-pos, packet+pos); avrcp_media_item_iterator_has_more(&media_item_context); avrcp_media_item_iterator_next(&media_item_context)){
uint32_t attr_id = avrcp_media_item_iterator_get_attr_id(&media_item_context);
uint16_t attr_charset = avrcp_media_item_iterator_get_attr_charset(&media_item_context);
uint16_t attr_value_length = avrcp_media_item_iterator_get_attr_value_len(&media_item_context);
const uint8_t * attr_value = avrcp_media_item_iterator_get_attr_value(&media_item_context);
printf(" - attr ID 0x%08" PRIx32 ", charset 0x%02x, actual len %d, name %s\n", attr_id, attr_charset, attr_value_length, attr_value);
}
}
default:
printf("AVRCP browsing: unknown browsable item type 0%02x\n", data_type);
break;
}
break;
default:
break;
}
}
#ifdef HAVE_BTSTACK_STDIN
static void show_usage(void){
bd_addr_t iut_address;
gap_local_bd_addr(iut_address);
printf("\n--- Bluetooth AVRCP Browsing Service Test Console %s ---\n", bd_addr_to_str(iut_address));
printf("c - AVRCP Service create connection to addr %s\n", bd_addr_to_str(device_addr));
printf("C - AVRCP Service disconnect\n");
printf("e - AVRCP Browsing Service create connection to addr %s\n", bd_addr_to_str(device_addr));
printf("E - AVRCP Browsing Service disconnect\n");
printf("I - Set first found player as addressed player\n");
printf("O - Set first found player as browsed player\n");
printf("p - Get media players\n");
printf("Q - Browse folders\n");
printf("P - Go up one level\n");
printf("W - Go down one level\n");
printf("T - Browse media items\n");
printf("---\n");
}
#endif
#ifdef HAVE_BTSTACK_STDIN
static void stdin_process(char cmd){
uint8_t status = ERROR_CODE_SUCCESS;
if (cmd != 'a' && cmd != 'A' && cmd != 'c' && cmd != 'C'){
if (browsing_query_active){
printf("Query active, try later!\n");
return;
}
}
switch (cmd){
case 'b':
status = a2dp_sink_establish_stream(device_addr, a2dp_local_seid, &a2dp_cid);
printf(" - Create AVDTP connection to addr %s, and local seid %d, expected cid 0x%02x.\n", bd_addr_to_str(device_addr), a2dp_local_seid, a2dp_cid);
break;
case 'B':
printf(" - AVDTP disconnect from addr %s.\n", bd_addr_to_str(device_addr));
a2dp_sink_disconnect(a2dp_cid);
break;
case 'c':
printf(" - Connect to AVRCP Service on addr %s.\n", bd_addr_to_str(device_addr));
status = avrcp_connect(device_addr, &avrcp_cid);
break;
case 'C':
if (avrcp_connected){
printf(" - AVRCP Service disconnect from addr %s.\n", bd_addr_to_str(device_addr));
status = avrcp_disconnect(avrcp_cid);
break;
}
printf("AVRCP Service already disconnected\n");
break;
case 'e':
if (!avrcp_connected) {
printf(" You must first connect to AVRCP Service on addr %s.\n", bd_addr_to_str(device_addr));
break;
}
printf(" - Connect to AVRCP Browsing Service at addr %s.\n", bd_addr_to_str(device_addr));
status = avrcp_browsing_connect(device_addr, ertm_buffer, sizeof(ertm_buffer), &ertm_config, &browsing_cid);
break;
case 'E':
if (browsing_connected){
printf(" - AVRCP Browsing Service disconnect from addr %s.\n", bd_addr_to_str(device_addr));
status = avrcp_browsing_disconnect(browsing_cid);
break;
}
printf("AVRCP Browsing Service already disconnected\n");
break;
case '\n':
case '\r':
break;
default:
if (!browsing_connected){
show_usage();
break;
}
switch (cmd) {
case 'I':
if (media_player_item_index < 0) {
printf("AVRCP Browsing:Get media players first\n");
break;
}
printf("AVRCP Browsing:Set addressed player\n");
status = avrcp_controller_set_addressed_player(avrcp_cid, media_player_items[0].player_id);
break;
case 'O':
if (media_player_item_index < 0) {
printf("AVRCP Browsing:Get media players first\n");
break;
}
printf("Set browsed player\n");
status = avrcp_browsing_controller_set_browsed_player(browsing_cid, media_player_items[0].player_id);
break;
case 'p':
printf("AVRCP Browsing: get media players\n");
media_player_item_index = -1;
status = avrcp_browsing_controller_get_media_players(browsing_cid, 0, 0xFFFFFFFF, AVRCP_MEDIA_ATTR_ALL);
break;
case 'Q':
printf("AVRCP Browsing: browse folders\n");
folder_index = -1;
status = avrcp_browsing_controller_browse_file_system(browsing_cid, 0, 0xFFFFFFFF, AVRCP_MEDIA_ATTR_ALL);
break;
case 'P':
printf("AVRCP Browsing: browse media items\n");
avrcp_browsing_controller_browse_media(browsing_cid, 0, 0xFFFFFFFF, AVRCP_MEDIA_ATTR_ALL);
break;
case 'W':
printf("AVRCP Browsing: go up one level\n");
status = avrcp_browsing_controller_go_up_one_level(browsing_cid);
folder_index = -1;
break;
case 'T':
if (folder_index < 0 && !parent_folder_set){
printf("AVRCP Browsing: no folders available\n");
break;
}
if (!parent_folder_set){
parent_folder_set = 1;
memcpy(parent_folder_name, folders[0].name, folders[0].name_len);
memcpy(parent_folder_uid, folders[0].uid, 8);
}
printf("AVRCP Browsing: go down one level of %s\n", (char *)parent_folder_name);
status = avrcp_browsing_controller_go_down_one_level(browsing_cid, parent_folder_uid);
folder_index = -1;
break;
default:
show_usage();
break;
}
break;
}
if (status != ERROR_CODE_SUCCESS){
printf("AVRCP Browsing: Could not perform command, status 0x%2x\n", status);
}
}
#endif
/* EXAMPLE_END */
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