fixed; use of Buffers with identify()

index.js

@@ -35,6 +35,9 @@ function gm (source, height, color) {
   if (source instanceof Stream) {
     this.sourceStream = source;
     source = height || 'unknown.jpg';
+  } else if (Buffer.isBuffer(source)) {
+    this.sourceBuffer = source;
+    source = height || 'unknown.jpg';
   } else if (height) {
     // new images
     width = source;
@@ -64,10 +67,12 @@ function gm (source, height, color) {
 
   this.addSrcFormatter(function (src) {
     // must be first source formatter
-    var inputFromStdin = this.sourceStream || Buffer.isBuffer(this.source);
 
+    var inputFromStdin = this.sourceStream || this.sourceBuffer;
     var ret = inputFromStdin ? '-' : this.source;
+
     if (ret && this.sourceFrames) ret += this.sourceFrames;
+
     src.length = 0;
     src[0] = ret;
   });

lib/command.js

@@ -183,8 +183,8 @@ module.exports = function (proto) {
 
     debug(cmd);
 
-    if (Buffer.isBuffer(this.source)) {
-      proc.stdin.write(this.source);
+    if (this.sourceBuffer) {
+      proc.stdin.write(this.sourceBuffer);
       proc.stdin.end();
     } else if (self.sourceStream) {
 

lib/getters.js

@@ -232,7 +232,7 @@ module.exports = function (gm) {
       args.push('-verbose');
     }
 
-    args.push(self.sourceStream ? '-' : self.source);
+    args.push(self.sourceStream || self.sourceBuffer ? '-' : self.source);
     return args;
   }