shithub: libopusenc

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Fixes shift_buffer() to actually preserve the first LPC_INPUT samples

--- a/src/opusenc.c

+++ b/src/opusenc.c

@@ -393,7 +393,8 @@

 static void shift_buffer(OggOpusEnc *enc) {

   /* Leaving enough in the buffer to do LPC extension if needed. */

   if (enc->buffer_start > LPC_INPUT) {

-    memmove(&enc->buffer[enc->channels*LPC_INPUT], &enc->buffer[enc->channels*enc->buffer_start], enc->channels*(enc->buffer_end-enc->buffer_start)*sizeof(*enc->buffer));

+    memmove(&enc->buffer[0], &enc->buffer[enc->channels*(enc->buffer_start-LPC_INPUT)],

+            enc->channels*(enc->buffer_end-enc->buffer_start+LPC_INPUT)*sizeof(*enc->buffer));

     enc->buffer_end -= enc->buffer_start-LPC_INPUT;

     enc->buffer_start = LPC_INPUT;

   }