Merge pull request #300 from chme/mpdoutputsvolume

[mpd] outputsvolume command

src/httpd_dacp.c

@@ -2294,7 +2294,7 @@ dacp_reply_setproperty(struct evhttp_request *req, struct evbuffer *evbuf, char
 }
 
 static void
-speaker_enum_cb(uint64_t id, const char *name, int relvol, struct spk_flags flags, void *arg)
+speaker_enum_cb(uint64_t id, const char *name, int relvol, int absvol, struct spk_flags flags, void *arg)
 {
   struct evbuffer *evbuf;
   int len;

src/mpd.c

@@ -3218,7 +3218,7 @@ mpd_command_rescan(struct evbuffer *evbuf, int argc, char **argv, char **errmsg)
  * Adds a new struct output to the given struct outputs in *arg for the given speaker (id, name, etc.).
  */
 static void
-outputs_enum_cb(uint64_t id, const char *name, int relvol, struct spk_flags flags, void *arg)
+outputs_enum_cb(uint64_t id, const char *name, int relvol, int absvol, struct spk_flags flags, void *arg)
 {
   struct outputs *outputs;
   struct output *output;
@@ -3528,21 +3528,24 @@ mpd_command_toggleoutput(struct evbuffer *evbuf, int argc, char **argv, char **e
  *   outputid: 0
  *   outputname: Computer
  *   outputenabled: 1
+ *   outputvolume: 50
  */
 static void
-speaker_enum_cb(uint64_t id, const char *name, int relvol, struct spk_flags flags, void *arg)
+speaker_enum_cb(uint64_t id, const char *name, int relvol, int absvol, struct spk_flags flags, void *arg)
 {
   struct evbuffer *evbuf;
 
   evbuf = (struct evbuffer *)arg;
 
   evbuffer_add_printf(evbuf,
-    "outputid: %d\n"
-    "outputname: %s\n"
-    "outputenabled: %d\n",
-    (unsigned short) id,
-    name,
-    flags.selected);
+		      "outputid: %d\n"
+		      "outputname: %s\n"
+		      "outputenabled: %d\n"
+		      "outputvolume: %d\n",
+		      (unsigned short) id,
+		      name,
+		      flags.selected,
+		      absvol);
 }
 
 /*
@@ -3557,6 +3560,82 @@ mpd_command_outputs(struct evbuffer *evbuf, int argc, char **argv, char **errmsg
   return 0;
 }
 
+static int
+mpd_command_outputvolume(struct evbuffer *evbuf, int argc, char **argv, char **errmsg)
+{
+  uint32_t shortid;
+  int volume;
+  struct outputs outputs;
+  struct output *output;
+  int ret;
+
+  if (argc < 3)
+    {
+      ret = asprintf(errmsg, "Missing argument for command 'outputvolume'");
+      if (ret < 0)
+	DPRINTF(E_LOG, L_MPD, "Out of memory\n");
+      return ACK_ERROR_ARG;
+    }
+
+  ret = safe_atou32(argv[1], &shortid);
+  if (ret < 0)
+    {
+      ret = asprintf(errmsg, "Argument doesn't convert to integer: '%s'", argv[1]);
+      if (ret < 0)
+      DPRINTF(E_LOG, L_MPD, "Out of memory\n");
+      return ACK_ERROR_ARG;
+    }
+
+  ret = safe_atoi32(argv[2], &volume);
+  if (ret < 0)
+    {
+      ret = asprintf(errmsg, "Argument doesn't convert to integer: '%s'", argv[2]);
+      if (ret < 0)
+	DPRINTF(E_LOG, L_MPD, "Out of memory\n");
+      return ACK_ERROR_ARG;
+    }
+
+  outputs.count = 0;
+  outputs.active = 0;
+  outputs.outputs = NULL;
+
+  player_speaker_enumerate(outputs_enum_cb, &outputs);
+
+  output = outputs.outputs;
+  while (output)
+    {
+      if (output->shortid == shortid)
+	{
+	  break;
+	}
+      output = output->next;
+    }
+
+  if (!output)
+    {
+      free_outputs(outputs.outputs);
+      ret = asprintf(errmsg, "No speaker found for short id: %d", shortid);
+      if (ret < 0)
+	DPRINTF(E_LOG, L_MPD, "Out of memory\n");
+      return ACK_ERROR_UNKNOWN;
+    }
+
+  ret = player_volume_setabs_speaker(output->id, volume);
+
+  if (ret < 0)
+    {
+      free_outputs(outputs.outputs);
+      ret = asprintf(errmsg, "Setting volume to %d for speaker with short-id %d failed", volume, shortid);
+      if (ret < 0)
+	DPRINTF(E_LOG, L_MPD, "Out of memory\n");
+      return ACK_ERROR_UNKNOWN;
+    }
+
+  free_outputs(outputs.outputs);
+
+  return 0;
+}
+
 /*
  * Dummy function to handle commands that are not supported by forked-daapd and should
  * not raise an error.
@@ -4099,6 +4178,14 @@ static struct mpd_command mpd_handlers[] =
       .handler = mpd_command_ignore
     },
 
+    /*
+     * Forked-daapd commands (not supported by mpd)
+     */
+    {
+      .mpdcommand = "outputvolume",
+      .handler = mpd_command_outputvolume
+    },
+
     /*
      * NULL command to terminate loop
      */

src/player.c

@@ -2724,7 +2724,7 @@ speaker_enumerate(void *arg, int *retval)
 	  flags.has_password = device->has_password;
 	  flags.has_video = device->has_video;
 
-	  spk_enum->cb(device->id, device->name, device->relvol, flags, spk_enum->arg);
+	  spk_enum->cb(device->id, device->name, device->relvol, device->volume, flags, spk_enum->arg);
 
 #ifdef DEBUG_RELVOL
 	  DPRINTF(E_DBG, L_PLAYER, "*** %s: abs %d rel %d\n", device->name, device->volume, device->relvol);

src/player.h

@@ -69,7 +69,7 @@ struct player_status {
   int next_pos_pl;
 };
 
-typedef void (*spk_enum_cb)(uint64_t id, const char *name, int relvol, struct spk_flags flags, void *arg);
+typedef void (*spk_enum_cb)(uint64_t id, const char *name, int relvol, int absvol, struct spk_flags flags, void *arg);
 
 struct player_history
 {