shithub: opus

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Fix CELT PLC for single packet between losses

Avoids switching to CNG unless we just have a "refresh packet"

--- a/celt/celt_decoder.c

+++ b/celt/celt_decoder.c

@@ -708,6 +708,8 @@

       celt_synthesis(mode, X, out_syn, oldBandE, start, effEnd, C, C, 0, LM, st->downsample, 0, st->arch);

       st->prefilter_and_fold = 0;

+      /* Skip regular PLC until we get two consecutive packets. */

+      st->skip_plc = 1;

    } else {

       int exc_length;

       /* Pitch-based PLC */

@@ -1118,7 +1120,7 @@

    /* Check if there are at least two packets received consecutively before

     * turning on the pitch-based PLC */

-   st->skip_plc = st->loss_duration != 0;

+   if (st->loss_duration == 0) st->skip_plc = 0;

    if (dec == NULL)

    {

-- 

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