From 57092f9dca12f587a5fc1625f45d88c6977edc81 Mon Sep 17 00:00:00 2001
From: Jean-Marc Valin <jmvalin@jmvalin.ca>
Date: Wed, 13 Feb 2019 13:33:42 -0500
Subject: [PATCH] Improve silence handling
Copy the previous analysis data instead of flagging as invalid
---
src/analysis.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/analysis.c b/src/analysis.c
index 23bae4227..cb46dec58 100644
--- a/src/analysis.c
+++ b/src/analysis.c
@@ -547,7 +547,11 @@ static void tonality_analysis(TonalityAnalysisState *tonal, const CELTMode *celt
tonal->mem_fill = 240 + remaining;
if (is_silence)
{
- info->valid = 0;
+ /* On silence, copy the previous analysis. */
+ int prev_pos = tonal->write_pos-2;
+ if (prev_pos < 0)
+ prev_pos += DETECT_SIZE;
+ OPUS_COPY(info, &tonal->info[prev_pos], 1);
RESTORE_STACK;
return;
}
--
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