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example/sco_demo_util: drop ENABLE_SCO_STEREO_PLAYBACK code

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Milanka Ringwald 2022-06-23 15:39:56 +02:00 committed by Matthias Ringwald
parent 324a1b416e
commit 0b5a695acc
1 changed files with 0 additions and 28 deletions
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28
example/sco_demo_util.c
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@ -76,7 +76,6 @@
// number of sco packets until 'report' on console
#define SCO_REPORT_PERIOD 100
// #define ENABLE_SCO_STEREO_PLAYBACK
#ifdef HAVE_POSIX_FILE_IO
// length and name of wav file on disk
@ -210,11 +209,7 @@ static void playback_callback(int16_t * buffer, uint16_t num_samples){
// fill with silence while paused
if (audio_output_paused){
if (btstack_ring_buffer_bytes_available(&audio_output_ring_buffer) < prebuffer_bytes){
#ifdef ENABLE_SCO_STEREO_PLAYBACK
memset(buffer, 0, num_samples * BYTES_PER_FRAME * 2);
#else
memset(buffer, 0, num_samples * BYTES_PER_FRAME);
#endif
return;
} else {
// resume playback
@ -224,32 +219,13 @@ static void playback_callback(int16_t * buffer, uint16_t num_samples){
// get data from ringbuffer
uint32_t bytes_read = 0;
#ifdef ENABLE_SCO_STEREO_PLAYBACK
while (num_samples){
int16_t temp[16];
unsigned int bytes_to_read = btstack_min(num_samples * BYTES_PER_FRAME, sizeof(temp));
btstack_ring_buffer_read(&audio_output_ring_buffer, (uint8_t *) &temp[0], bytes_to_read, &bytes_read);
if (bytes_read == 0) break;
unsigned int i;
for (i=0;i<bytes_read / BYTES_PER_FRAME;i++){
*buffer++ = temp[i];
*buffer++ = temp[i];
num_samples--;
}
}
#else
btstack_ring_buffer_read(&audio_output_ring_buffer, (uint8_t *) buffer, num_samples * BYTES_PER_FRAME, &bytes_read);
num_samples -= bytes_read / BYTES_PER_FRAME;
buffer += bytes_read / BYTES_PER_FRAME;
#endif
// fill with 0 if not enough
if (num_samples){
#ifdef ENABLE_SCO_STEREO_PLAYBACK
memset(buffer, 0, num_samples * BYTES_PER_FRAME * 2);
#else
memset(buffer, 0, num_samples * BYTES_PER_FRAME);
#endif
audio_output_paused = 1;
}
}
@ -273,11 +249,7 @@ static int audio_initialize(int sample_rate){
const btstack_audio_sink_t * audio_sink = btstack_audio_sink_get_instance();
if (!audio_sink) return 0;
#ifdef ENABLE_SCO_STEREO_PLAYBACK
audio_sink->init(2, sample_rate, &playback_callback);
#else
audio_sink->init(1, sample_rate, &playback_callback);
#endif
audio_sink->start_stream();
audio_output_paused = 1;