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esp32: add stop_stream function

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This commit is contained in:
Matthias Ringwald 2019-02-25 15:07:51 +01:00
parent 1d701b7e79
commit 106b8d823a
1 changed files with 40 additions and 15 deletions
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55
port/esp32/components/btstack/btstack_audio_esp32.c
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@ -63,7 +63,7 @@ static int bytes_per_sample;
// client
static void (*playback_callback)(int16_t * buffer, uint16_t num_samples);
static void (*recording_callback)(const int16_t * buffer, uint16_t num_samples);
// static void (*recording_callback)(const int16_t * buffer, uint16_t num_samples);
// timer to fill output ring buffer
static btstack_timer_source_t driver_timer;
@ -73,6 +73,8 @@ static QueueHandle_t i2s_event_queue;
static int i2s_num = I2S_NUM_0;
static int sink_streaming;
static void fill_buffer(void){
size_t bytes_written;
uint8_t buffer[DMA_BUFFER_SAMPLES * BYTES_PER_SAMPLE_STEREO];
@ -94,10 +96,6 @@ static void driver_timer_handler(btstack_timer_source_t * ts){
}
}
// recording buffer ready to process
if (recording_callback){
}
// re-set timer
btstack_run_loop_set_timer(ts, DRIVER_POLL_INTERVAL_MS);
btstack_run_loop_add_timer(ts);
@ -106,11 +104,9 @@ static void driver_timer_handler(btstack_timer_source_t * ts){
static int btstack_audio_esp32_sink_init(
uint8_t channels,
uint32_t samplerate,
void (*playback)(int16_t * buffer, uint16_t num_samples),
void (*recording)(const int16_t * buffer, uint16_t num_samples)
){
void (*playback)(int16_t * buffer, uint16_t num_samples)){
playback_callback = playback;
recording_callback = recording;
num_channels = channels;
bytes_per_sample = channels * 2; // 16-bit
@ -160,35 +156,64 @@ static void btstack_audio_esp32_sink_start_stream(void){
btstack_run_loop_set_timer_handler(&driver_timer, &driver_timer_handler);
btstack_run_loop_set_timer(&driver_timer, DRIVER_POLL_INTERVAL_MS);
btstack_run_loop_add_timer(&driver_timer);
// state
sink_streaming = 1;
}
static void btstack_audio_esp32_sink_close(void){
static void btstack_audio_esp32_sink_stop_stream(void){
if (!sink_streaming) return;
// stop timer
btstack_run_loop_remove_timer(&driver_timer);
// stop i2s
i2s_stop(i2s_num);
// uninstall driver
i2s_driver_uninstall(i2s_num);
// state
sink_streaming = 0;
}
static const btstack_audio_t btstack_audio_sink_esp32 = {
static void btstack_audio_esp32_sink_close(void){
if (sink_streaming) {
btstack_audio_esp32_sink_stop_stream();
}
// uninstall driver
i2s_driver_uninstall(i2s_num);
}
static const btstack_audio_sink_t btstack_audio_sink_esp32 = {
/* int (*init)(..);*/ &btstack_audio_esp32_sink_init,
/* void (*start_stream(void));*/ &btstack_audio_esp32_sink_start_stream,
/* void (*stop_stream)(void) */ &btstack_audio_esp32_sink_stop_stream,
/* void (*close)(void); */ &btstack_audio_esp32_sink_close
};
#if 0
static const btstack_audio_t btstack_audio_source_esp32 = {
static int btstack_audio_esp32_source_init(
uint8_t channels,
uint32_t samplerate,
void (*recording)(const int16_t * buffer, uint16_t num_samples)
){
playback_callback = playback;
recording_callback = recording;
num_channels = channels;
bytes_per_sample = channels * 2; // 16-bit
...
}
static const btstack_audio_source_t btstack_audio_source_esp32 = {
/* int (*init)(..);*/ &btstack_audio_esp32_source_init,
/* void (*start_stream(void));*/ &btstack_audio_esp32_source_start_stream,
/* void (*stop_stream)(void) */ &btstack_audio_esp32_source_stop_stream,
/* void (*close)(void); */ &btstack_audio_esp32_source_close
};
#endif
const btstack_audio_sink_t * btstack_audio_esp32_sink_get_instance(void){
return &btstack_audio_esp32_sink;
return &btstack_audio_sink_esp32;
}
#if 0