style: reformat code and update cppcheck suppressions

src/channel.c

@@ -1,42 +1,39 @@
-#include <stdio.h>
-#include <string.h>
+#include "channel.h"
 #include <jack/jack.h>
 #include <stdatomic.h>
-#include "channel.h"
+#include <stdio.h>
+#include <string.h>
 
-void channel_add(jack_client_t *client, int idx)
-{
-    char in_name[64], out_name[64];
-    snprintf(in_name, sizeof(in_name), "channel%d_input", next_channel_id);
-    snprintf(out_name, sizeof(out_name), "channel%d_output", next_channel_id);
+void channel_add(jack_client_t *client, int idx) {
+  char in_name[64], out_name[64];
+  snprintf(in_name, sizeof(in_name), "channel%d_input", next_channel_id);
+  snprintf(out_name, sizeof(out_name), "channel%d_output", next_channel_id);
 
-    channels[idx].audio_in = jack_port_register(client, in_name,
-                                                JACK_DEFAULT_AUDIO_TYPE,
-                                                JackPortIsInput, 0);
-    channels[idx].audio_out = jack_port_register(client, out_name,
-                                                 JACK_DEFAULT_AUDIO_TYPE,
-                                                 JackPortIsOutput, 0);
-    if (!channels[idx].audio_in || !channels[idx].audio_out) {
-        fprintf(stderr, "Failed to register ports for channel %d\n", next_channel_id);
-        /* Do NOT mark channel active – process loop will skip it */
-        atomic_store(&channels[idx].active, 0);
-        return;
-    }
-
-    atomic_store(&channels[idx].active, 1);
-    atomic_store(&channels[idx].state, STATE_IDLE);
-    channels[idx].prev_state = -1;
-    channels[idx].loop_count = 0;
-    channels[idx].record_pos = 0;
-    channels[idx].playback_pos = 0;
-
-    next_channel_id++;
-    channel_count++;
-}
-
-void channel_remove(jack_client_t *client, int idx)
-{
-    (void)client;
+  channels[idx].audio_in = jack_port_register(
+      client, in_name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
+  channels[idx].audio_out = jack_port_register(
+      client, out_name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
+  if (!channels[idx].audio_in || !channels[idx].audio_out) {
+    fprintf(stderr, "Failed to register ports for channel %d\n",
+            next_channel_id);
+    /* Do NOT mark channel active – process loop will skip it */
     atomic_store(&channels[idx].active, 0);
-    channel_count--;
+    return;
+  }
+
+  atomic_store(&channels[idx].active, 1);
+  atomic_store(&channels[idx].state, STATE_IDLE);
+  channels[idx].prev_state = -1;
+  channels[idx].loop_count = 0;
+  channels[idx].record_pos = 0;
+  channels[idx].playback_pos = 0;
+
+  next_channel_id++;
+  channel_count++;
+}
+
+void channel_remove(jack_client_t *client, int idx) {
+  (void)client;
+  atomic_store(&channels[idx].active, 0);
+  channel_count--;
 }