libilbc: use ff_alloc_packet2

Signed-off-by: Paul B Mahol <onemda@gmail.com>

libavcodec/libilbc.c

@@ -182,10 +182,8 @@ static int ilbc_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
     ILBCEncContext *s = avctx->priv_data;
     int ret;
 
-    if ((ret = ff_alloc_packet(avpkt, 50))) {
-        av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+    if ((ret = ff_alloc_packet2(avctx, avpkt, 50)) < 0)
         return ret;
-    }
 
     WebRtcIlbcfix_EncodeImpl((WebRtc_UWord16*) avpkt->data, (const WebRtc_Word16*) frame->data[0], &s->encoder);