Increase decode and write buffers.

data.c

 	ts->output.type = FILE_IO;
 	ts->output.ttl  = 1;
 
-	ts->decode_buf  = cbuf_init((7 * dvbcsa_bs_batch_size() * 188) * 4, "decode");
-	ts->write_buf   = cbuf_init((7 * dvbcsa_bs_batch_size() * 188) * 2, "write");
+	ts->decode_buf  = cbuf_init((7 * dvbcsa_bs_batch_size() * 188) * 16, "decode"); // ~658Kb
+	ts->write_buf   = cbuf_init((7 * dvbcsa_bs_batch_size() * 188) *  8, "write");  // ~324Kb
 }
 
 void data_free(struct ts *ts) {