From 0b5a695acca80b1c4f1399002597d160ab09e6a7 Mon Sep 17 00:00:00 2001
From: Milanka Ringwald <mila@ringwald.ch>
Date: Thu, 23 Jun 2022 15:39:56 +0200
Subject: [PATCH] example/sco_demo_util: drop ENABLE_SCO_STEREO_PLAYBACK code

---
 example/sco_demo_util.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/example/sco_demo_util.c b/example/sco_demo_util.c
index ba70347ac..8402fd7ae 100644
--- a/example/sco_demo_util.c
+++ b/example/sco_demo_util.c
@@ -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;