commit d7b33142ecb4e64b7eaf54564d6ad6e7f20a6c5d
author Neelkamal Semwal <neelkamal.semwal@ittiam.com> Wed Oct 21 18:30:47 2020 +0530
committer Erik de Castro Lopo <erikd@mega-nerd.com> Mon Mar 15 13:46:20 2021 +1100
tree fa3a9162ff206aa4e179235355f2efe8cea41cc6
parent 159cd6c41a6ec17b36d74043c45a3aa64de90d5e

libFLAC/stream_decoder.c: Fix divide by zero error in FLAC__stream_decoder_seek_absolute

src/libFLAC/stream_decoder.c

diff --git a/src/libFLAC/stream_decoder.c b/src/libFLAC/stream_decoder.c
index aa63b2c..3ca7f44 100644
--- a/src/libFLAC/stream_decoder.c
+++ b/src/libFLAC/stream_decoder.c
@@ -3130,8 +3130,10 @@
 		/* a little less accurate: */
 		if(upper_bound - lower_bound < 0xffffffff)
 			pos = (FLAC__int64)lower_bound + (FLAC__int64)(((target_sample - lower_bound_sample) * (upper_bound - lower_bound)) / (upper_bound_sample - lower_bound_sample)) - approx_bytes_per_frame;
-		else /* @@@ WATCHOUT, ~2TB limit */
-			pos = (FLAC__int64)lower_bound + (FLAC__int64)((((target_sample - lower_bound_sample)>>8) * ((upper_bound - lower_bound)>>8)) / ((upper_bound_sample - lower_bound_sample)>>16)) - approx_bytes_per_frame;
+		else { /* @@@ WATCHOUT, ~2TB limit */
+		        FLAC__uint64 ratio = (1<<16) / (upper_bound_sample - lower_bound_sample);
+			pos = (FLAC__int64)lower_bound + (FLAC__int64)((((target_sample - lower_bound_sample)>>8) * ((upper_bound - lower_bound)>>8) * ratio)) - approx_bytes_per_frame;
+		}
 #endif
 		if(pos >= (FLAC__int64)upper_bound)
 			pos = (FLAC__int64)upper_bound - 1;