From a40412ff5adf34d9912260ae8a131b7761c8678d Mon Sep 17 00:00:00 2001
From: Bjoern Hartmann <bjoern.hartmann@head-acoustics.com>
Date: Wed, 24 Feb 2021 10:49:36 +0100
Subject: [PATCH] pts/avdtp_sink: avoid ringbuffer overflow if audio is not
 present

---
 test/pts/avdtp_sink_test.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/test/pts/avdtp_sink_test.c b/test/pts/avdtp_sink_test.c
index 5c1845768..50f0ae921 100644
--- a/test/pts/avdtp_sink_test.c
+++ b/test/pts/avdtp_sink_test.c
@@ -266,6 +266,11 @@ static void playback_queue_audio(int16_t * data, int num_audio_frames, int num_c
     // write to wav file
     wav_writer_write_int16(num_audio_frames * num_channels, data);
 
+    // do not write into buffer if audio is not present
+    const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance();
+    if (!audio)
+        return;
+
     // store in audio ring buffer
     int status = btstack_ring_buffer_write(&decoded_audio_ring_buffer, (uint8_t *)data, num_audio_frames * num_channels * 2);
     if (status){