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a2dp_sink_demo: use start and stop stream

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This commit is contained in:
Milanka Ringwald 2019-03-04 16:37:54 +01:00
parent 2760b1e821
commit 1bf4f2ab81
1 changed files with 53 additions and 17 deletions
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70
example/a2dp_sink_demo.c
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@ -279,6 +279,16 @@ static int a2dp_and_avrcp_setup(void){
hci_event_callback_registration.callback = &hci_packet_handler;
hci_add_event_handler(&hci_event_callback_registration);
#ifdef HAVE_POSIX_FILE_IO
if (!btstack_audio_sink_get_instance()){
printf("No audio playback.\n");
} else {
printf("Audio playback supported.\n");
}
#ifdef STORE_SBC_TO_WAV_FILE
printf("Audio will be stored to \'%s\' file.\n", wav_filename);
#endif
#endif
return 0;
}
@ -293,6 +303,11 @@ static void playback_handler(int16_t * buffer, uint16_t num_frames){
// called from lower-layer but guaranteed to be on main thread
if (sbc_frame_size == 0){
memset(buffer, 0, num_frames * BYTES_PER_FRAME);
return;
}
// first fill from resampled audio
uint32_t bytes_read;
btstack_ring_buffer_read(&decoded_audio_ring_buffer, (uint8_t *) buffer, num_frames * BYTES_PER_FRAME, &bytes_read);
@ -396,13 +411,33 @@ static int media_processing_init(avdtp_media_codec_configuration_sbc_t configura
return 0;
}
static void media_processing_close(void){
static void media_processing_start(void){
if (!media_initialized) return;
// setup audio playback
const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance();
if (audio){
audio->start_stream();
}
audio_stream_started = 1;
}
static void media_processing_pause(void){
if (!media_initialized) return;
// stop audio playback
audio_stream_started = 0;
const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance();
if (audio){
audio->stop_stream();
}
}
static void media_processing_close(void){
if (!media_initialized) return;
media_initialized = 0;
audio_stream_started = 0;
sbc_frame_size = 0;
#ifdef STORE_SBC_TO_WAV_FILE
#ifdef STORE_SBC_TO_WAV_FILE
wav_writer_close();
int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr;
@ -417,6 +452,7 @@ static void media_processing_close(void){
// stop audio playback
const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance();
if (audio){
printf("close stream\n");
audio->close();
}
}
@ -435,7 +471,7 @@ static int read_sbc_header(uint8_t * packet, int size, int * offset, avdtp_sbc_c
static void handle_l2cap_media_data_packet(uint8_t seid, uint8_t *packet, uint16_t size){
UNUSED(seid);
int pos = 0;
avdtp_media_packet_header_t media_header;
if (!read_media_data_header(packet, size, &pos, &media_header)) return;
@ -621,22 +657,22 @@ static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channe
memset(value, 0, sizeof(value));
switch (packet[2]){
case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED:
printf("AVRCP Controller: playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet));
printf("AVRCP Controller: Playback position changed, position %d ms\n", (unsigned int) avrcp_subevent_notification_playback_pos_changed_get_playback_position_ms(packet));
break;
case AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED:
printf("AVRCP Controller: playback status changed %s\n", avrcp_play_status2str(avrcp_subevent_notification_playback_status_changed_get_play_status(packet)));
printf("AVRCP Controller: 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("AVRCP Controller: playing content changed\n");
printf("AVRCP Controller: Playing content changed\n");
return;
case AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED:
printf("AVRCP Controller: track changed\n");
printf("AVRCP Controller: Track changed\n");
return;
case AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED:
printf("AVRCP Controller: absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet));
printf("AVRCP Controller: Absolute volume changed %d\n", avrcp_subevent_notification_volume_changed_get_absolute_volume(packet));
return;
case AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED:
printf("AVRCP Controller: changed\n");
printf("AVRCP Controller: Changed\n");
return;
case AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE:{
uint8_t shuffle_mode = avrcp_subevent_shuffle_and_repeat_mode_get_shuffle_mode(packet);
@ -696,7 +732,7 @@ static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channe
break;
default:
printf("AVRCP Controller: event 0x%02x is not parsed\n", packet[2]);
printf("AVRCP Controller: Event 0x%02x is not parsed\n", packet[2]);
break;
}
}
@ -883,30 +919,30 @@ static void a2dp_sink_packet_handler(uint8_t packet_type, uint16_t channel, uint
cid = a2dp_subevent_stream_started_get_a2dp_cid(packet);
if (cid != a2dp_cid) break;
a2dp_local_seid = a2dp_subevent_stream_started_get_local_seid(packet);
printf("A2DP Sink : stream started\n");
media_processing_init(sbc_configuration);
printf("A2DP Sink : Stream started\n");
media_processing_start();
break;
case A2DP_SUBEVENT_STREAM_SUSPENDED:
cid = a2dp_subevent_stream_suspended_get_a2dp_cid(packet);
if (cid != a2dp_cid) break;
a2dp_local_seid = a2dp_subevent_stream_suspended_get_local_seid(packet);
printf("A2DP Sink : stream paused\n");
// TODO: pause stream
printf("A2DP Sink : Stream paused\n");
media_processing_pause();
break;
case A2DP_SUBEVENT_STREAM_RELEASED:
a2dp_local_seid = a2dp_subevent_stream_released_get_local_seid(packet);
printf("A2DP Sink : stream released\n");
printf("A2DP Sink : Stream released\n");
media_processing_close();
break;
case A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED:
cid = a2dp_subevent_signaling_connection_released_get_a2dp_cid(packet);
printf("A2DP Sink : signaling connection released\n");
printf("A2DP Sink : Signaling connection released\n");
media_processing_close();
break;
default:
printf("A2DP Sink : not parsed 0x%02x\n", packet[2]);
printf("A2DP Sink : Not parsed 0x%02x\n", packet[2]);
break;
}
}