pcm_utils: always round up resampling buffer size

libsamplerate produces cracks in the sound output when the destination
buffer is too small.  This is the case when pcm_convert_size() rounds
down.  Use ceil(x) instead of floor(0.5+x) there to prevent a buffer
overrun.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/pcm_utils.c b/src/pcm_utils.c
index 4759c20ac..2fb5f6c3f 100644
--- a/src/pcm_utils.c
+++ b/src/pcm_utils.c
@@ -461,7 +461,7 @@ size_t pcm_convert_size(const struct audio_format *inFormat, size_t src_size,
 	assert((src_size % audio_format_frame_size(inFormat)) == 0);
 
 	dest_size /= audio_format_frame_size(inFormat);
-	dest_size = floor(0.5 + (double)dest_size * ratio);
+	dest_size = ceil((double)dest_size * ratio);
 	dest_size *= audio_format_frame_size(outFormat);
 
 	return dest_size;