Debug

Author: Cuda-Chen

virtio-snd.c

@@ -459,6 +459,12 @@ static void virtio_snd_read_pcm_set_params(
     vsnd_props[id].pp.rate = request->rate;
     vsnd_props[id].pp.padding = request->padding;
 
+    fprintf(stderr, "pcm_set_params rate %d" " period_bytes %" PRIu32 " buffer_bytes %" PRIu32 " channels %" PRIu32 "\n",
+            pcm_rate_tbl[vsnd_props[id].pp.rate],
+            vsnd_props[id].pp.period_bytes,
+            vsnd_props[id].pp.buffer_bytes,
+            vsnd_props[id].pp.channels);
+
     *plen = 0;
     fprintf(stderr, "virtio_snd_read_pcm_set_params\n");
 }
@@ -606,11 +612,16 @@ static void __virtio_snd_frame_dequeue(void *out,
     /* Copy the frame to output stream */
     uint32_t size = props->pp.buffer_bytes;
     uint32_t idx = cons_head & mask;
+    fprintf(stderr, "cons_head %" PRIu32 " cons_next %" PRIu32 " mask %" PRIu32 " idx %" PRIu32 "\n",
+            cons_head, cons_next, mask, idx);
     if (idx + n < size) {
         memcpy(out, props->ring.buffer + idx, n);
+        //out += n;
     } else {
         memcpy(out, props->ring.buffer + idx, size - idx);
+        //out += (size - idx);
         memcpy(out + (size - idx), props->ring.buffer, n - (size - idx));
+        //out += (n - (size - idx));
     }
     VSND_COMPILER_BARRIER;