diff --git a/example/a2dp_sink_demo.c b/example/a2dp_sink_demo.c new file mode 100644 index 000000000..156335d73 --- /dev/null +++ b/example/a2dp_sink_demo.c @@ -0,0 +1,1112 @@ +/* + * 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 + * + */ + + +#include +#include +#include +#include + +#include "btstack_config.h" +#include "btstack_debug.h" +#include "btstack_event.h" +#include "btstack_memory.h" +#include "btstack_run_loop.h" +#include "gap.h" +#include "hci.h" +#include "hci_cmd.h" +#include "hci_dump.h" +#include "l2cap.h" +#include "classic/avdtp_sink.h" +#include "classic/a2dp_sink.h" +#include "classic/btstack_sbc.h" +#include "classic/avdtp_util.h" +#include "classic/avrcp.h" + +#define AVRCP_BROWSING_ENABLED 0 + +#ifdef HAVE_BTSTACK_STDIN +#include "btstack_stdin.h" +#endif + +#ifdef HAVE_AUDIO_DMA +#include "btstack_ring_buffer.h" +#include "hal_audio_dma.h" +#endif + +#ifdef HAVE_PORTAUDIO +#include "btstack_ring_buffer.h" +#include +#endif + +#ifdef HAVE_POSIX_FILE_IO +#include "wav_util.h" +#define STORE_SBC_TO_SBC_FILE +#define STORE_SBC_TO_WAV_FILE +#endif + +#if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) || defined(HAVE_AUDIO_DMA) +#define DECODE_SBC +#endif + +#define NUM_CHANNELS 2 +#define BYTES_PER_FRAME (2*NUM_CHANNELS) +#define MAX_SBC_FRAME_SIZE 120 + +// SBC Decoder for WAV file or PortAudio +#ifdef DECODE_SBC +static btstack_sbc_decoder_state_t state; +static btstack_sbc_mode_t mode = SBC_MODE_STANDARD; +#endif + +#if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) +#define PREBUFFER_MS 200 +static int audio_stream_started = 0; +static int audio_stream_paused = 0; +static btstack_ring_buffer_t ring_buffer; +#endif + +#ifdef HAVE_AUDIO_DMA +// below 30: add samples, 30-40: fine, above 40: drop samples +#define OPTIMAL_FRAMES_MIN 30 +#define OPTIMAL_FRAMES_MAX 40 +#define ADDITIONAL_FRAMES 10 +#define DMA_AUDIO_FRAMES 128 +#define DMA_MAX_FILL_FRAMES 1 +#define NUM_AUDIO_BUFFERS 2 + +static uint16_t audio_samples[(DMA_AUDIO_FRAMES + DMA_MAX_FILL_FRAMES)*2*NUM_AUDIO_BUFFERS]; +static uint16_t audio_samples_len[NUM_AUDIO_BUFFERS]; +static uint8_t ring_buffer_storage[(OPTIMAL_FRAMES_MAX + ADDITIONAL_FRAMES) * MAX_SBC_FRAME_SIZE]; +static const uint16_t silent_buffer[DMA_AUDIO_FRAMES*2]; +static volatile int playback_buffer; +static int write_buffer; +static uint8_t sbc_frame_size; +static int sbc_samples_fix; +#endif + +// PortAdudio - live playback +#ifdef HAVE_PORTAUDIO +#define PA_SAMPLE_TYPE paInt16 +#define SAMPLE_RATE 48000 +#define FRAMES_PER_BUFFER 128 +#define PREBUFFER_BYTES (PREBUFFER_MS*SAMPLE_RATE/1000*BYTES_PER_FRAME) +static PaStream * stream; +static uint8_t ring_buffer_storage[2*PREBUFFER_BYTES]; +static btstack_ring_buffer_t ring_buffer; +static int total_num_samples = 0; +#endif + +// WAV File +#ifdef STORE_SBC_TO_WAV_FILE +static int frame_count = 0; +static char * wav_filename = "avdtp_sink.wav"; +#endif + +#ifdef STORE_SBC_TO_SBC_FILE +static FILE * sbc_file; +static char * sbc_filename = "avdtp_sink.sbc"; +#endif + +typedef struct { + // bitmaps + uint8_t sampling_frequency_bitmap; + uint8_t channel_mode_bitmap; + uint8_t block_length_bitmap; + uint8_t subbands_bitmap; + uint8_t allocation_method_bitmap; + uint8_t min_bitpool_value; + uint8_t max_bitpool_value; +} adtvp_media_codec_information_sbc_t; + +typedef struct { + int reconfigure; + int num_channels; + int sampling_frequency; + int channel_mode; + int block_length; + int subbands; + int allocation_method; + int min_bitpool_value; + int max_bitpool_value; + int frames_per_buffer; +} avdtp_media_codec_configuration_sbc_t; + +#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 = "00:1B:DC:08:0A:A5"; +#endif + +// bt dongle: -u 02-02 static bd_addr_t remote = {0x00, 0x02, 0x72, 0xDC, 0x31, 0xC1}; + +static uint16_t avdtp_cid = 0; +static uint8_t sdp_avdtp_sink_service_buffer[150]; +static avdtp_sep_t sep; + +static adtvp_media_codec_information_sbc_t sbc_capability; +static avdtp_media_codec_configuration_sbc_t sbc_configuration; +static avdtp_stream_endpoint_t * local_stream_endpoint; + +#ifdef HAVE_BTSTACK_STDIN +static uint16_t remote_configuration_bitmap; +static avdtp_capabilities_t remote_configuration; +#endif + +typedef enum { + AVDTP_APPLICATION_IDLE, + AVDTP_APPLICATION_CONNECTED, + AVDTP_APPLICATION_STREAMING +} avdtp_application_state_t; + +avdtp_application_state_t app_state = AVDTP_APPLICATION_IDLE; + +static btstack_packet_callback_registration_t hci_event_callback_registration; + +static int media_initialized = 0; + +static bd_addr_t device_addr; +static uint16_t avrcp_cid = 0; +static uint16_t avrcp_con_handle = 0; +static uint8_t sdp_avrcp_controller_service_buffer[200]; + +#ifdef HAVE_PORTAUDIO +static int patestCallback( const void *inputBuffer, void *outputBuffer, + unsigned long framesPerBuffer, + const PaStreamCallbackTimeInfo* timeInfo, + PaStreamCallbackFlags statusFlags, + void *userData ) { + + /** patestCallback is called from different thread, don't use hci_dump / log_info here without additional checks */ + + (void) timeInfo; /* Prevent unused variable warnings. */ + (void) statusFlags; + (void) inputBuffer; + (void) userData; + + int bytes_to_copy = framesPerBuffer * BYTES_PER_FRAME; + + // fill with silence while paused + if (audio_stream_paused){ + + if (btstack_ring_buffer_bytes_available(&ring_buffer) < PREBUFFER_BYTES){ + // printf("PA: silence\n"); + memset(outputBuffer, 0, bytes_to_copy); + return 0; + } else { + // resume playback + audio_stream_paused = 0; + } + } + + // get data from ringbuffer + uint32_t bytes_read = 0; + btstack_ring_buffer_read(&ring_buffer, outputBuffer, bytes_to_copy, &bytes_read); + bytes_to_copy -= bytes_read; + + // fill with 0 if not enough + if (bytes_to_copy){ + memset(outputBuffer + bytes_read, 0, bytes_to_copy); + audio_stream_paused = 1; + } + return 0; +} +#endif + +#ifdef HAVE_AUDIO_DMA +static int next_buffer(int current){ + if (current == NUM_AUDIO_BUFFERS-1) return 0; + return current + 1; +} +static uint8_t * start_of_buffer(int num){ + return (uint8_t *) &audio_samples[num * DMA_AUDIO_FRAMES * 2]; +} +void hal_audio_dma_done(void){ + if (audio_stream_paused){ + hal_audio_dma_play((const uint8_t *) silent_buffer, DMA_AUDIO_FRAMES*4); + return; + } + // next buffer + int next_playback_buffer = next_buffer(playback_buffer); + uint8_t * playback_data; + if (next_playback_buffer == write_buffer){ + + // TODO: stop codec while playing silence when getting 'stream paused' + + // start playing silence + audio_stream_paused = 1; + hal_audio_dma_play((const uint8_t *) silent_buffer, DMA_AUDIO_FRAMES*4); + printf("%6u - paused - bytes in buffer %u\n", (int) btstack_run_loop_get_time_ms(), btstack_ring_buffer_bytes_available(&ring_buffer)); + return; + } + playback_buffer = next_playback_buffer; + playback_data = start_of_buffer(playback_buffer); + hal_audio_dma_play(playback_data, audio_samples_len[playback_buffer]); + // btstack_run_loop_embedded_trigger(); +} +#endif + +#if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) + +static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){ + UNUSED(sample_rate); + UNUSED(context); + +#ifdef STORE_SBC_TO_WAV_FILE + wav_writer_write_int16(num_samples*num_channels, data); + frame_count++; +#endif + +#ifdef HAVE_PORTAUDIO + total_num_samples+=num_samples*num_channels; + + // store pcm samples in ringbuffer + btstack_ring_buffer_write(&ring_buffer, (uint8_t *)data, num_samples*num_channels*2); + + if (!audio_stream_started){ + audio_stream_paused = 1; + /* -- start stream -- */ + PaError err = Pa_StartStream(stream); + if (err != paNoError){ + printf("Error starting the stream: \"%s\"\n", Pa_GetErrorText(err)); + return; + } + audio_stream_started = 1; + } +#endif + +} +#endif + + +#ifdef HAVE_AUDIO_DMA + +static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){ + UNUSED(sample_rate); + UNUSED(context); + total_num_samples+=num_samples*num_channels; + + // store in ring buffer + uint8_t * write_data = start_of_buffer(write_buffer); + uint16_t len = num_samples*num_channels*2; + memcpy(write_data, data, len); + audio_samples_len[write_buffer] = len; + + // add/drop audio frame to fix drift + if (sbc_samples_fix > 0){ + memcpy(write_data + len, write_data + len - 4, 4); + audio_samples_len[write_buffer] += 4; + } + if (sbc_samples_fix < 0){ + audio_samples_len[write_buffer] -= 4; + } + + write_buffer = next_buffer(write_buffer); +} + +static void hal_audio_dma_process(btstack_data_source_t * ds, btstack_data_source_callback_type_t callback_type){ + UNUSED(ds); + UNUSED(callback_type); + + if (!media_initialized) return; + + int trigger_resume = 0; + if (audio_stream_paused) { + if (sbc_frame_size && btstack_ring_buffer_bytes_available(&ring_buffer) >= OPTIMAL_FRAMES_MIN * sbc_frame_size){ + trigger_resume = 1; + // reset buffers + playback_buffer = NUM_AUDIO_BUFFERS - 1; + write_buffer = 0; + } else { + return; + } + } + + while (playback_buffer != write_buffer && btstack_ring_buffer_bytes_available(&ring_buffer) >= sbc_frame_size ){ + uint8_t frame[MAX_SBC_FRAME_SIZE]; + uint32_t bytes_read = 0; + btstack_ring_buffer_read(&ring_buffer, frame, sbc_frame_size, &bytes_read); + btstack_sbc_decoder_process_data(&state, 0, frame, sbc_frame_size); + } + + if (trigger_resume){ + printf("%6u - resume\n", (int) btstack_run_loop_get_time_ms()); + audio_stream_paused = 0; + } +} + +#endif + +static int media_processing_init(avdtp_media_codec_configuration_sbc_t configuration){ + +#ifdef DECODE_SBC + btstack_sbc_decoder_init(&state, mode, handle_pcm_data, NULL); +#endif + +#ifdef STORE_SBC_TO_WAV_FILE + wav_writer_open(wav_filename, configuration.num_channels, configuration.sampling_frequency); +#endif + +#ifdef STORE_SBC_TO_SBC_FILE + sbc_file = fopen(sbc_filename, "wb"); +#endif + +#ifdef HAVE_PORTAUDIO + // int frames_per_buffer = configuration.frames_per_buffer; + PaError err; + PaStreamParameters outputParameters; + + /* -- initialize PortAudio -- */ + err = Pa_Initialize(); + if (err != paNoError){ + printf("Error initializing portaudio: \"%s\"\n", Pa_GetErrorText(err)); + return err; + } + /* -- setup input and output -- */ + outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */ + outputParameters.channelCount = configuration.num_channels; + outputParameters.sampleFormat = PA_SAMPLE_TYPE; + outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency; + outputParameters.hostApiSpecificStreamInfo = NULL; + /* -- setup stream -- */ + err = Pa_OpenStream( + &stream, + NULL, /* &inputParameters */ + &outputParameters, + configuration.sampling_frequency, + 0, + paClipOff, /* we won't output out of range samples so don't bother clipping them */ + patestCallback, /* use callback */ + NULL ); + + if (err != paNoError){ + printf("Error initializing portaudio: \"%s\"\n", Pa_GetErrorText(err)); + return err; + } +#endif +#ifdef HAVE_AUDIO_DMA + audio_stream_paused = 1; + hal_audio_dma_init(configuration.sampling_frequency); + hal_audio_dma_set_audio_played(&hal_audio_dma_done); + // start playing silence + hal_audio_dma_done(); +#endif + + #if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) + memset(ring_buffer_storage, 0, sizeof(ring_buffer_storage)); + btstack_ring_buffer_init(&ring_buffer, ring_buffer_storage, sizeof(ring_buffer_storage)); + audio_stream_started = 0; +#endif + media_initialized = 1; + return 0; +} + +static void media_processing_close(void){ + if (!media_initialized) return; + media_initialized = 0; +#ifdef STORE_SBC_TO_WAV_FILE + printf(" Close wav writer.\n"); + wav_writer_close(); + int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr; + + printf(" Decoding done. Processed totaly %d frames:\n - %d good\n - %d bad\n - %d zero frames\n", total_frames_nr, state.good_frames_nr, state.bad_frames_nr, state.zero_frames_nr); + printf(" Written %d frames to wav file: %s\n\n", frame_count, wav_filename); +#endif +#ifdef STORE_SBC_TO_SBC_FILE + fclose(sbc_file); +#endif + +#if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA) + audio_stream_started = 0; +#endif + +#ifdef HAVE_PORTAUDIO + PaError err = Pa_StopStream(stream); + if (err != paNoError){ + printf("Error stopping the stream: \"%s\"\n", Pa_GetErrorText(err)); + return; + } + err = Pa_CloseStream(stream); + if (err != paNoError){ + printf("Error closing the stream: \"%s\"\n", Pa_GetErrorText(err)); + return; + } + err = Pa_Terminate(); + if (err != paNoError){ + printf("Error terminating portaudio: \"%s\"\n", Pa_GetErrorText(err)); + return; + } +#endif +#ifdef HAVE_AUDIO_DMA + hal_audio_dma_close(); +#endif +} + +static void handle_l2cap_media_data_packet(avdtp_stream_endpoint_t * stream_endpoint, uint8_t *packet, uint16_t size){ + + UNUSED(stream_endpoint); + + int pos = 0; + + avdtp_media_packet_header_t media_header; + media_header.version = packet[pos] & 0x03; + media_header.padding = get_bit16(packet[pos],2); + media_header.extension = get_bit16(packet[pos],3); + media_header.csrc_count = (packet[pos] >> 4) & 0x0F; + + pos++; + + media_header.marker = get_bit16(packet[pos],0); + media_header.payload_type = (packet[pos] >> 1) & 0x7F; + pos++; + + media_header.sequence_number = big_endian_read_16(packet, pos); + pos+=2; + + media_header.timestamp = big_endian_read_32(packet, pos); + pos+=4; + + media_header.synchronization_source = big_endian_read_32(packet, pos); + pos+=4; + + UNUSED(media_header); + + // TODO: read csrc list + + // printf_hexdump( packet, pos ); + // printf("MEDIA HEADER: %u timestamp, version %u, padding %u, extension %u, csrc_count %u\n", + // media_header.timestamp, media_header.version, media_header.padding, media_header.extension, media_header.csrc_count); + // printf("MEDIA HEADER: marker %02x, payload_type %02x, sequence_number %u, synchronization_source %u\n", + // media_header.marker, media_header.payload_type, media_header.sequence_number, media_header.synchronization_source); + + avdtp_sbc_codec_header_t sbc_header; + sbc_header.fragmentation = get_bit16(packet[pos], 7); + sbc_header.starting_packet = get_bit16(packet[pos], 6); + sbc_header.last_packet = get_bit16(packet[pos], 5); + sbc_header.num_frames = packet[pos] & 0x0f; + pos++; + +#ifdef HAVE_AUDIO_DMA + // store sbc frame size for buffer management + sbc_frame_size = (size-pos)/ sbc_header.num_frames; +#endif + + UNUSED(sbc_header); + // printf("SBC HEADER: num_frames %u, fragmented %u, start %u, stop %u\n", sbc_header.num_frames, sbc_header.fragmentation, sbc_header.starting_packet, sbc_header.last_packet); + // printf_hexdump( packet+pos, size-pos ); + +#if defined(HAVE_PORTAUDIO) || defined(STORE_SBC_TO_WAV_FILE) + btstack_sbc_decoder_process_data(&state, 0, packet+pos, size-pos); +#endif + +#ifdef HAVE_AUDIO_DMA + btstack_ring_buffer_write(&ring_buffer, packet+pos, size-pos); + + // decide on audio sync drift based on number of sbc frames in queue + int sbc_frames_in_buffer = btstack_ring_buffer_bytes_available(&ring_buffer) / sbc_frame_size; + if (sbc_frames_in_buffer < OPTIMAL_FRAMES_MIN){ + sbc_samples_fix = 1; // duplicate last sample + } else if (sbc_frames_in_buffer <= OPTIMAL_FRAMES_MAX){ + sbc_samples_fix = 0; // nothing to do + } else { + sbc_samples_fix = -1; // drop last sample + } + + // dump + printf("%6u %03u %d\n", (int) btstack_run_loop_get_time_ms(), sbc_frames_in_buffer, sbc_samples_fix); + +#endif + +#ifdef STORE_SBC_TO_SBC_FILE + fwrite(packet+pos, size-pos, 1, sbc_file); +#endif +} + +static void dump_sbc_capability(adtvp_media_codec_information_sbc_t media_codec_sbc){ + printf("Received media codec capability:\n"); + printf(" - sampling_frequency: 0x%02x\n", media_codec_sbc.sampling_frequency_bitmap); + printf(" - channel_mode: 0x%02x\n", media_codec_sbc.channel_mode_bitmap); + printf(" - block_length: 0x%02x\n", media_codec_sbc.block_length_bitmap); + printf(" - subbands: 0x%02x\n", media_codec_sbc.subbands_bitmap); + printf(" - allocation_method: 0x%02x\n", media_codec_sbc.allocation_method_bitmap); + printf(" - bitpool_value [%d, %d] \n", media_codec_sbc.min_bitpool_value, media_codec_sbc.max_bitpool_value); +} + +static void dump_sbc_configuration(avdtp_media_codec_configuration_sbc_t configuration){ + printf("Received media codec configuration:\n"); + printf(" - num_channels: %d\n", configuration.num_channels); + printf(" - sampling_frequency: %d\n", configuration.sampling_frequency); + printf(" - channel_mode: %d\n", configuration.channel_mode); + printf(" - block_length: %d\n", configuration.block_length); + printf(" - subbands: %d\n", configuration.subbands); + printf(" - allocation_method: %d\n", configuration.allocation_method); + printf(" - bitpool_value [%d, %d] \n", configuration.min_bitpool_value, configuration.max_bitpool_value); +} + +static void avrcp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ + UNUSED(channel); + UNUSED(size); + bd_addr_t event_addr; + uint16_t local_cid; + uint16_t connection_handle = 0; + uint8_t status = 0xFF; + switch (packet_type) { + case HCI_EVENT_PACKET: + switch (hci_event_packet_get_type(packet)) { + case HCI_EVENT_DISCONNECTION_COMPLETE: + // connection closed -> quit test app + printf("AVRCP: HCI_EVENT_DISCONNECTION_COMPLETE\n"); + break; + case HCI_EVENT_AVRCP_META: + switch (packet[2]){ + case AVRCP_SUBEVENT_CONNECTION_ESTABLISHED: { + local_cid = avrcp_subevent_connection_established_get_avrcp_cid(packet); + if (!avrcp_cid){ + avrcp_cid = local_cid; + } else if (avrcp_cid != local_cid) { + printf("Connection is not established, expected 0x%02X l2cap cid, received 0x%02X\n", avrcp_cid, local_cid); + break; + } + + status = avrcp_subevent_connection_established_get_status(packet); + avrcp_con_handle = avrcp_subevent_connection_established_get_con_handle(packet); + avrcp_subevent_connection_established_get_bd_addr(packet, event_addr); + if (status != ERROR_CODE_SUCCESS){ + printf("AVRCP Connection failed: status 0x%02x\n", status); + avrcp_cid = 0; + break; + } + printf("Channel successfully opened: %s, handle 0x%02x, local cid 0x%02x\n", bd_addr_to_str(event_addr), avrcp_con_handle, local_cid); + // automatically enable notifications + avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED); + avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED); + return; + } + case AVRCP_SUBEVENT_CONNECTION_RELEASED: + printf("Channel released: avrcp_cid 0x%02x\n", avrcp_subevent_connection_released_get_avrcp_cid(packet)); + avrcp_cid = 0; + return; + default: + break; + } + + status = packet[5]; + connection_handle = little_endian_read_16(packet, 3); + if (connection_handle != avrcp_con_handle) return; + + // avoid printing INTERIM status + if (status == AVRCP_CTYPE_RESPONSE_INTERIM) return; + + printf("AVRCP: command status: %s, ", avrcp_ctype2str(status)); + switch (packet[2]){ + case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED: + printf("notification, playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet))); + return; + case AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED: + printf("notification, playing content changed\n"); + return; + case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED: + printf("notification track changed\n"); + return; + case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED: + printf("notification absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet)); + return; + case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED: + printf("notification changed\n"); + return; + case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{ + uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet); + uint8_t repeat_mode = avrcp_subevent_shuffle_and_repeat_mode_get_repeat_mode(packet); + printf("%s, %s\n", avrcp_shuffle2str(shuffle_mode), avrcp_repeat2str(repeat_mode)); + break; + } + case AVRCP_SUBEVENT_NOW_PLAYING_INFO:{ + uint8_t value[100]; + printf("now playing: \n"); + if (avrcp_subevent_now_playing_info_get_title_len(packet) > 0){ + memcpy(value, avrcp_subevent_now_playing_info_get_title(packet), avrcp_subevent_now_playing_info_get_title_len(packet)); + printf(" Title: %s\n", value); + } + if (avrcp_subevent_now_playing_info_get_album_len(packet) > 0){ + memcpy(value, avrcp_subevent_now_playing_info_get_album(packet), avrcp_subevent_now_playing_info_get_album_len(packet)); + printf(" Album: %s\n", value); + } + if (avrcp_subevent_now_playing_info_get_artist_len(packet) > 0){ + memcpy(value, avrcp_subevent_now_playing_info_get_artist(packet), avrcp_subevent_now_playing_info_get_artist_len(packet)); + printf(" Artist: %s\n", value); + } + if (avrcp_subevent_now_playing_info_get_genre_len(packet) > 0){ + memcpy(value, avrcp_subevent_now_playing_info_get_genre(packet), avrcp_subevent_now_playing_info_get_genre_len(packet)); + printf(" Genre: %s\n", value); + } + printf(" Track: %d\n", avrcp_subevent_now_playing_info_get_track(packet)); + printf(" Total nr. tracks: %d\n", avrcp_subevent_now_playing_info_get_total_tracks(packet)); + printf(" Song length: %d ms\n", avrcp_subevent_now_playing_info_get_song_length(packet)); + break; + } + case AVRCP_SUBEVENT_PLAY_STATUS: + printf("song length: %d ms, song position: %d ms, play status: %s\n", + avrcp_subevent_play_status_get_song_length(packet), + avrcp_subevent_play_status_get_song_position(packet), + avrcp_play_status2str(avrcp_subevent_play_status_get_play_status(packet))); + break; + case AVRCP_SUBEVENT_OPERATION_COMPLETE: + printf("operation done %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); + break; + case AVRCP_SUBEVENT_OPERATION_START: + printf("operation start %s\n", avrcp_operation2str(avrcp_subevent_operation_complete_get_operation_id(packet))); + break; + case AVRCP_SUBEVENT_PLAYER_APPLICATION_VALUE_RESPONSE: + // response to set shuffle and repeat mode + printf("\n"); + break; + default: + printf("Not implemented\n"); + break; + } + break; + default: + break; + } + break; + default: + // other packet type + break; + } + +} + + +static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ + UNUSED(channel); + UNUSED(size); + + bd_addr_t event_addr; + switch (packet_type) { + + case HCI_EVENT_PACKET: + switch (hci_event_packet_get_type(packet)) { + case HCI_EVENT_PIN_CODE_REQUEST: + // inform about pin code request + printf("Pin code request - using '0000'\n"); + hci_event_pin_code_request_get_bd_addr(packet, event_addr); + hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); + break; + case HCI_EVENT_DISCONNECTION_COMPLETE: + // connection closed -> quit test app + app_state = AVDTP_APPLICATION_IDLE; + printf("\n --- avdtp_test: HCI_EVENT_DISCONNECTION_COMPLETE ---\n"); + media_processing_close(); + break; + case HCI_EVENT_AVDTP_META: + switch (packet[2]){ + case AVDTP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED: + app_state = AVDTP_APPLICATION_CONNECTED; + avdtp_cid = avdtp_subevent_signaling_connection_established_get_avdtp_cid(packet); + printf("\n --- avdtp_test: AVDTP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED, cid 0x%02x ---\n", avdtp_cid); + break; + case AVDTP_SUBEVENT_SIGNALING_SEP_FOUND: + if (app_state < AVDTP_APPLICATION_CONNECTED) return; + sep.seid = avdtp_subevent_signaling_sep_found_get_seid(packet); + sep.in_use = avdtp_subevent_signaling_sep_found_get_in_use(packet); + sep.media_type = avdtp_subevent_signaling_sep_found_get_media_type(packet); + sep.type = avdtp_subevent_signaling_sep_found_get_sep_type(packet); + printf("Found sep: seid %u, in_use %d, media type %d, sep type %d (1-SNK)\n", sep.seid, sep.in_use, sep.media_type, sep.type); + break; + case AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CAPABILITY: + if (app_state < AVDTP_APPLICATION_CONNECTED) return; + sbc_capability.sampling_frequency_bitmap = avdtp_subevent_signaling_media_codec_sbc_capability_get_sampling_frequency_bitmap(packet); + sbc_capability.channel_mode_bitmap = avdtp_subevent_signaling_media_codec_sbc_capability_get_channel_mode_bitmap(packet); + sbc_capability.block_length_bitmap = avdtp_subevent_signaling_media_codec_sbc_capability_get_block_length_bitmap(packet); + sbc_capability.subbands_bitmap = avdtp_subevent_signaling_media_codec_sbc_capability_get_subbands_bitmap(packet); + sbc_capability.allocation_method_bitmap = avdtp_subevent_signaling_media_codec_sbc_capability_get_allocation_method_bitmap(packet); + sbc_capability.min_bitpool_value = avdtp_subevent_signaling_media_codec_sbc_capability_get_min_bitpool_value(packet); + sbc_capability.max_bitpool_value = avdtp_subevent_signaling_media_codec_sbc_capability_get_max_bitpool_value(packet); + dump_sbc_capability(sbc_capability); + break; + case AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION:{ + if (app_state < AVDTP_APPLICATION_CONNECTED) return; + sbc_configuration.reconfigure = avdtp_subevent_signaling_media_codec_sbc_configuration_get_reconfigure(packet); + sbc_configuration.num_channels = avdtp_subevent_signaling_media_codec_sbc_configuration_get_num_channels(packet); + sbc_configuration.sampling_frequency = avdtp_subevent_signaling_media_codec_sbc_configuration_get_sampling_frequency(packet); + sbc_configuration.channel_mode = avdtp_subevent_signaling_media_codec_sbc_configuration_get_channel_mode(packet); + sbc_configuration.block_length = avdtp_subevent_signaling_media_codec_sbc_configuration_get_block_length(packet); + sbc_configuration.subbands = avdtp_subevent_signaling_media_codec_sbc_configuration_get_subbands(packet); + sbc_configuration.allocation_method = avdtp_subevent_signaling_media_codec_sbc_configuration_get_allocation_method(packet); + sbc_configuration.min_bitpool_value = avdtp_subevent_signaling_media_codec_sbc_configuration_get_min_bitpool_value(packet); + sbc_configuration.max_bitpool_value = avdtp_subevent_signaling_media_codec_sbc_configuration_get_max_bitpool_value(packet); + sbc_configuration.frames_per_buffer = sbc_configuration.subbands * sbc_configuration.block_length; + dump_sbc_configuration(sbc_configuration); + // // TODO: use actual config + // btstack_sbc_encoder_init(&local_stream_endpoint->sbc_encoder_state, SBC_MODE_STANDARD, 16, 8, 2, 44100, 53); + + if (sbc_configuration.reconfigure){ + media_processing_close(); + media_processing_init(sbc_configuration); + } else { + media_processing_init(sbc_configuration); + } + break; + } + case AVDTP_SUBEVENT_STREAMING_CONNECTION_ESTABLISHED: + app_state = AVDTP_APPLICATION_STREAMING; + break; + case AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CAPABILITY: + printf(" received non SBC codec. not implemented\n"); + break; + case AVDTP_SUBEVENT_SIGNALING_ACCEPT: + break; + default: + printf(" not implemented\n"); + break; + } + break; + default: + break; + } + break; + default: + // other packet type + break; + } +} + +#ifdef HAVE_BTSTACK_STDIN +static void show_usage(void){ + bd_addr_t iut_address; + gap_local_bd_addr(iut_address); + printf("\n--- Bluetooth AVDTP Sink/AVRCP Connection Test Console %s ---\n", bd_addr_to_str(iut_address)); + printf("b - AVDTP Sink create connection to addr %s\n", device_addr_string); + printf("B - AVDTP Sink disconnect\n"); + printf("c - AVRCP create connection to addr %s\n", device_addr_string); + printf("C - AVRCP disconnect\n"); + + printf("\n--- Bluetooth AVDTP SINK Commands %s ---\n", bd_addr_to_str(iut_address)); + printf("d - discover stream endpoints\n"); + printf("g - get capabilities\n"); + printf("a - get all capabilities\n"); + printf("s - set configuration\n"); + printf("f - get configuration\n"); + printf("R - reconfigure stream with %d\n", sep.seid); + printf("o - open stream with seid %d\n", sep.seid); + printf("m - start stream with %d\n", sep.seid); + printf("A - abort stream with %d\n", sep.seid); + printf("S - stop stream with %d\n", sep.seid); + printf("P - suspend stream with %d\n", sep.seid); + + printf("\n--- Bluetooth AVRCP Commands %s ---\n", bd_addr_to_str(iut_address)); + printf("O - get play status\n"); + printf("j - get now playing info\n"); + printf("k - play\n"); + printf("K - stop\n"); + printf("u - pause\n"); + printf("U - start fast forward\n"); + printf("M - stop fast forward\n"); + printf("n - start rewind\n"); + printf("N - stop rewind\n"); + printf("i - forward\n"); + printf("I - backward\n"); + printf("t - volume up\n"); + printf("T - volume down\n"); + printf("p - absolute volume of 50 percent\n"); + printf("M - mute\n"); + printf("r - skip\n"); + printf("q - query repeat and shuffle mode\n"); + printf("v - repeat single track\n"); + printf("x - repeat all tracks\n"); + printf("X - disable repeat mode\n"); + printf("z - shuffle all tracks\n"); + printf("Z - disable shuffle mode\n"); + + printf("Ctrl-c - exit\n"); + printf("---\n"); +} +#endif + +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 +}; + +#ifdef HAVE_BTSTACK_STDIN +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 uint8_t media_sbc_codec_reconfiguration[] = { + (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO, + (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_SNR, + 2, 53 +}; + +static void stdin_process(char cmd){ + sep.seid = 1; + switch (cmd){ + case 'b': + printf("Creating L2CAP Connection to %s, BLUETOOTH_PROTOCOL_AVDTP\n", device_addr_string); + avdtp_sink_connect(device_addr); + break; + case 'B': + printf("Disconnect\n"); + avdtp_sink_disconnect(avdtp_cid); + break; + case 'c': + printf(" - Create AVRCP connection to addr %s.\n", bd_addr_to_str(device_addr)); + avrcp_connect(device_addr, &avrcp_cid); + printf(" assigned avrcp cid 0x%02x\n", avrcp_cid); + break; + case 'C': + printf(" - Disconnect\n"); + avrcp_disconnect(avrcp_cid); + break; + + case 'd': + avdtp_sink_discover_stream_endpoints(avdtp_cid); + break; + case 'g': + avdtp_sink_get_capabilities(avdtp_cid, sep.seid); + break; + case 'a': + avdtp_sink_get_all_capabilities(avdtp_cid, sep.seid); + break; + case 'f': + avdtp_sink_get_configuration(avdtp_cid, sep.seid); + break; + case 's': + remote_configuration_bitmap = store_bit16(remote_configuration_bitmap, AVDTP_MEDIA_CODEC, 1); + remote_configuration.media_codec.media_type = AVDTP_AUDIO; + remote_configuration.media_codec.media_codec_type = AVDTP_CODEC_SBC; + remote_configuration.media_codec.media_codec_information_len = sizeof(media_sbc_codec_configuration); + remote_configuration.media_codec.media_codec_information = media_sbc_codec_configuration; + avdtp_sink_set_configuration(avdtp_cid, local_stream_endpoint->sep.seid, sep.seid, remote_configuration_bitmap, remote_configuration); + break; + case 'R': + remote_configuration_bitmap = store_bit16(remote_configuration_bitmap, AVDTP_MEDIA_CODEC, 1); + remote_configuration.media_codec.media_type = AVDTP_AUDIO; + remote_configuration.media_codec.media_codec_type = AVDTP_CODEC_SBC; + remote_configuration.media_codec.media_codec_information_len = sizeof(media_sbc_codec_reconfiguration); + remote_configuration.media_codec.media_codec_information = media_sbc_codec_reconfiguration; + avdtp_sink_reconfigure(avdtp_cid, local_stream_endpoint->sep.seid, sep.seid, remote_configuration_bitmap, remote_configuration); + break; + case 'o': + avdtp_sink_open_stream(avdtp_cid, local_stream_endpoint->sep.seid, sep.seid); + break; + case 'm': + avdtp_sink_start_stream(local_stream_endpoint->sep.seid); + break; + case 'A': + avdtp_sink_abort_stream(local_stream_endpoint->sep.seid); + break; + case 'S': + avdtp_sink_stop_stream(local_stream_endpoint->sep.seid); + break; + case 'P': + avdtp_sink_suspend(local_stream_endpoint->sep.seid); + break; + + case '\n': + case '\r': + break; + case 'O': + printf(" - get play status\n"); + avrcp_get_play_status(avrcp_cid); + break; + case 'j': + printf(" - get now playing info\n"); + avrcp_get_now_playing_info(avrcp_cid); + break; + case 'k': + printf(" - play\n"); + avrcp_play(avrcp_cid); + break; + case 'K': + printf(" - stop\n"); + avrcp_stop(avrcp_cid); + break; + case 'L': + printf(" - pause\n"); + avrcp_pause(avrcp_cid); + break; + case 'u': + printf(" - start fast forward\n"); + avrcp_start_fast_forward(avrcp_cid); + break; + case 'U': + printf(" - stop fast forward\n"); + avrcp_stop_fast_forward(avrcp_cid); + break; + case 'n': + printf(" - start rewind\n"); + avrcp_start_rewind(avrcp_cid); + break; + case 'N': + printf(" - stop rewind\n"); + avrcp_stop_rewind(avrcp_cid); + break; + case 'i': + printf(" - forward\n"); + avrcp_forward(avrcp_cid); + break; + case 'I': + printf(" - backward\n"); + avrcp_backward(avrcp_cid); + break; + case 't': + printf(" - volume up\n"); + avrcp_volume_up(avrcp_cid); + break; + case 'T': + printf(" - volume down\n"); + avrcp_volume_down(avrcp_cid); + break; + case 'p': + printf(" - absolute volume of 50 percent\n"); + avrcp_set_absolute_volume(avrcp_cid, 50); + break; + case 'M': + printf(" - mute\n"); + avrcp_mute(avrcp_cid); + break; + case 'r': + printf(" - skip\n"); + avrcp_skip(avrcp_cid); + break; + case 'q': + printf(" - query repeat and shuffle mode\n"); + avrcp_query_shuffle_and_repeat_modes(avrcp_cid); + break; + case 'v': + printf(" - repeat single track\n"); + avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_SINGLE_TRACK); + break; + case 'x': + printf(" - repeat all tracks\n"); + avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_ALL_TRACKS); + break; + case 'X': + printf(" - disable repeat mode\n"); + avrcp_set_repeat_mode(avrcp_cid, AVRCP_REPEAT_MODE_OFF); + break; + case 'z': + printf(" - shuffle all tracks\n"); + avrcp_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_ALL_TRACKS); + break; + case 'Z': + printf(" - disable shuffle mode\n"); + avrcp_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF); + break; + default: + show_usage(); + break; + + } +} +#endif + + +int btstack_main(int argc, const char * argv[]); +int btstack_main(int argc, const char * argv[]){ + + UNUSED(argc); + (void)argv; + + /* Register for HCI events */ + hci_event_callback_registration.callback = &packet_handler; + hci_add_event_handler(&hci_event_callback_registration); + + l2cap_init(); + // Initialize AVDTP Sink + avdtp_sink_init(); + avdtp_sink_register_packet_handler(&packet_handler); + +//#ifndef SMG_BI + local_stream_endpoint = avdtp_sink_create_stream_endpoint(AVDTP_SINK, AVDTP_AUDIO); + local_stream_endpoint->sep.seid = 1; + avdtp_sink_register_media_transport_category(local_stream_endpoint->sep.seid); + avdtp_sink_register_media_codec_category(local_stream_endpoint->sep.seid, AVDTP_AUDIO, AVDTP_CODEC_SBC, media_sbc_codec_capabilities, sizeof(media_sbc_codec_capabilities)); +//#endif + // uint8_t cp_type_lsb, uint8_t cp_type_msb, const uint8_t * cp_type_value, uint8_t cp_type_value_len + // avdtp_sink_register_content_protection_category(seid, 2, 2, NULL, 0); + + avdtp_sink_register_media_handler(&handle_l2cap_media_data_packet); + printf("reistered media handler\n"); + + // Initialize AVRCP COntroller + avrcp_init(); + avrcp_register_packet_handler(&avrcp_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, 1, NULL, NULL); + sdp_register_service(sdp_avdtp_sink_service_buffer); + + // setup AVRCP + memset(sdp_avrcp_controller_service_buffer, 0, sizeof(sdp_avrcp_controller_service_buffer)); + avrcp_controller_create_sdp_record(sdp_avrcp_controller_service_buffer, 0x10001, AVRCP_BROWSING_ENABLED, 1, NULL, NULL); + sdp_register_service(sdp_avrcp_controller_service_buffer); + + + gap_set_local_name("BTstack A2DP Sink Test"); + gap_discoverable_control(1); + gap_set_class_of_device(0x200408); + printf("sdp, gap done\n"); + + // turn on! + hci_power_control(HCI_POWER_ON); + +#ifdef HAVE_AUDIO_DMA + static btstack_data_source_t hal_audio_dma_data_source; + // set up polling data_source + btstack_run_loop_set_data_source_handler(&hal_audio_dma_data_source, &hal_audio_dma_process); + btstack_run_loop_enable_data_source_callbacks(&hal_audio_dma_data_source, DATA_SOURCE_CALLBACK_POLL); + btstack_run_loop_add_data_source(&hal_audio_dma_data_source); +#endif + +#ifdef HAVE_BTSTACK_STDIN + // parse human readable Bluetooth address + sscanf_bd_addr(device_addr_string, device_addr); + btstack_stdin_setup(stdin_process); +#endif + + return 0; +}