commit 57092f9dca12f587a5fc1625f45d88c6977edc81
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 16:52:52 2019 -0500
tree 7c665cb88d7ea84412145c9d931f115e98f23566
parent a7aa7fb382416ff257ab352c3b9cf3d46da51f56

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..cb46dec 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;
     }