Remove unused variables

Author: Cuda-Chen

virtio-snd.c

@@ -465,7 +465,7 @@ static void virtio_snd_read_pcm_set_params(
                 code);
         return;
     }
-    /* TODO: check the valiability of buffer_bytes, period_bytes, channel_min,
+    /* FIXME: check the valiability of buffer_bytes, period_bytes, channel_min,
      * and channel_max */
     props->pp.hdr.hdr.code = VIRTIO_SND_R_PCM_SET_PARAMS;
     props->pp.buffer_bytes = request->buffer_bytes;
@@ -504,10 +504,10 @@ static void virtio_snd_read_pcm_prepare(const virtio_snd_pcm_hdr_t *query,
         return;
     }
 
+    props->pp.hdr.hdr.code = VIRTIO_SND_R_PCM_PREPARE;
     props->v.guest_playing = 0;
     props->v.stream_id = stream_id;
 
-    props->pp.hdr.hdr.code = VIRTIO_SND_R_PCM_PREPARE;
     uint32_t period_bytes = props->pp.period_bytes;
     uint32_t channels = props->pp.channels;
     uint32_t rate = pcm_rate_tbl[props->pp.rate];
@@ -619,6 +619,7 @@ static void virtio_snd_read_pcm_release(const virtio_snd_pcm_hdr_t *query,
     pthread_mutex_destroy(&props->lock.lock);
     pthread_cond_destroy(&props->lock.readable);
     pthread_cond_destroy(&props->lock.writable);
+
     /* Tear down PCM buffer queue. */
     vsnd_buf_queue_node_t *tmp = NULL;
     vsnd_buf_queue_node_t *node;
@@ -631,6 +632,7 @@ static void virtio_snd_read_pcm_release(const virtio_snd_pcm_hdr_t *query,
 
     CNFAClose(props->audio_host);
     fprintf(stderr, "pass CNFAclose\n");
+
     /* Tear down stream related locking attributes. */
     pthread_mutex_destroy(&props->v.ctrl_mutex);
     pthread_cond_destroy(&props->v.ctrl_cond);
@@ -639,9 +641,6 @@ static void virtio_snd_read_pcm_release(const virtio_snd_pcm_hdr_t *query,
     fprintf(stderr, "virtio_snd_read_pcm_release\n");
 }
 
-double omega = 0.0;
-int totalframesp = 0;
-int totalframesr = 0;
 static void __virtio_snd_frame_dequeue(short *out,
                                        uint32_t n,
                                        uint32_t stream_id)
@@ -695,7 +694,10 @@ static void virtio_snd_cb(struct CNFADriver *dev,
                           int framesp,
                           int framesr)
 {
-    (void) in; /* reversed for future recording use */
+    /* reversed for future recording use */
+    (void) in;
+    (void) framesr;
+
     vsnd_stream_sel_t *v_ptr = (vsnd_stream_sel_t *) dev->opaque;
     int channels = dev->channelsPlay;
     uint32_t out_buf_sz = framesp * channels;
@@ -707,18 +709,12 @@ static void virtio_snd_cb(struct CNFADriver *dev,
         pthread_cond_wait(&v_ptr->ctrl_cond, &v_ptr->ctrl_mutex);
     }
 
-    totalframesr += framesr;
-    totalframesp += framesp;
-
     uint32_t id = v_ptr->stream_id;
     uint32_t out_buf_bytes = out_buf_sz * VSND_CNFA_FRAME_SZ;
     fprintf(stderr, "start to play with out_buf_sz %" PRIu32 "\n", out_buf_sz);
 
     __virtio_snd_frame_dequeue(out, out_buf_bytes, id);
 
-    fprintf(stderr, "totalframesp %d totalframesr %d\n", totalframesp,
-            totalframesr);
-
     pthread_mutex_unlock(&v_ptr->ctrl_mutex);
 }