commit fb903589a1934db48feac9bf7c896a78029b9937
author Jean-Marc Valin <jmvalin@jmvalin.ca> Wed Feb 13 13:33:42 2019 -0500
committer Jean-Marc Valin <jmvalin@jmvalin.ca> Wed Feb 13 13:33:42 2019 -0500
tree 159d2cd95948c36021300cb96ecd5e26b884fef3
parent 8fe2587108ee95d115ddceb175d86d7976c714fd

Improve silence handling

Copy the previous analysis data instead of flagging as invalid

src/analysis.c

diff --git a/src/analysis.c b/src/analysis.c
index 23bae42..15841bf 100644
--- a/src/analysis.c
+++ b/src/analysis.c
@@ -547,7 +547,11 @@
     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;
     }