From: Tucker Kern <tuckkern@gmail.com>
Date: Mon, 27 Apr 2020 21:22:06 +0000 (-0600)
Subject: Use signed integers when calculating backend latency adjustment
X-Git-Tag: 3.3.7d12~100^2
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1001%2Fhead;p=thirdparty%2Fshairport-sync.git

Use signed integers when calculating backend latency adjustment
---

diff --git a/player.c b/player.c
index 483fbee8..ee1d1a4f 100644
--- a/player.c
+++ b/player.c
@@ -1048,7 +1048,7 @@ static abuf_t *buffer_get_frame(rtsp_conn_info *conn) {
 
               uint64_t should_be_time;
               frame_to_local_time(conn->first_packet_timestamp + conn->latency +
-                                      (uint32_t)(config.audio_backend_latency_offset *
+                                      (int32_t)(config.audio_backend_latency_offset *
                                                  conn->input_rate), // this will go modulo 2^32
                                   &should_be_time,
                                   conn);
@@ -1069,7 +1069,7 @@ static abuf_t *buffer_get_frame(rtsp_conn_info *conn) {
 
             uint64_t should_be_time;
             frame_to_local_time(conn->first_packet_timestamp + conn->latency +
-                                    (uint32_t)(config.audio_backend_latency_offset *
+                                    (int32_t)(config.audio_backend_latency_offset *
                                                conn->input_rate), // this should go modulo 2^32
                                 &should_be_time,
                                 conn);
@@ -1304,7 +1304,7 @@ static abuf_t *buffer_get_frame(rtsp_conn_info *conn) {
 
         uint64_t time_to_play;
         frame_to_local_time(curframe->given_timestamp + conn->latency +
-                                (uint32_t)(config.audio_backend_latency_offset * conn->input_rate) -
+                                (int32_t)(config.audio_backend_latency_offset * conn->input_rate) -
                                 (uint32_t)(config.audio_backend_buffer_desired_length *
                                            conn->input_rate), // this will go modulo 2^32
                             &time_to_play,