Take a shot from the camera stream

kripken · Nov 25, 2014 · 79332d5 · 79332d5
1 parent 2605d35
commit 79332d5
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Showing 2 changed files with 37 additions and 0 deletions.
diff --git a/index.js b/index.js
@@ -384,6 +384,24 @@ DumbPipe.registerOpener("camera", function(message, sender) {
         video.style.visibility = message.visible ? "visible" : "hidden";
         break;
 
+      case "snapshot":
+        var canvas = document.createElement("canvas");
+        canvas.width = curW;
+        canvas.height = curH;
+        var ctx = canvas.getContext("2d");
+        ctx.drawImage(video, 0, 0, curW, curH);
+        // TODO: Remove hardcoded image type
+        canvas.toBlob(function(blob) {
+          var fileReader = new FileReader();
+
+          fileReader.onload = function(data) {
+            sender({ type: "snapshot", data: fileReader.result });
+          }
+
+          fileReader.readAsArrayBuffer(blob);
+        }, "image/jpeg");
+        break;
+
       case "close":
         if (mediaStream) {
           mediaStream.stop();

diff --git a/midp/media.js b/midp/media.js
@@ -404,6 +404,8 @@ function ImageRecorder(playerContainer) {
     this.isAudioControlSupported = false;
 
     this.realizeResolver = null;
+
+    this.snapshotData = null;
 }
 
 ImageRecorder.prototype.realize = function() {
@@ -421,6 +423,11 @@ ImageRecorder.prototype.recipient = function(message) {
             this.realizeResolver(true);
             this.realizeResolver = null;
             break;
+
+        case "snapshot":
+            this.snapshotData = new Int8Array(message.data);
+
+            break;
     }
 }
 
@@ -455,6 +462,10 @@ ImageRecorder.prototype.setVisible = function(visible) {
     this.sender({ type: "setVisible", visible: visible });
 }
 
+ImageRecorder.prototype.startSnapshot = function(imageType) {
+    this.sender({ type: "snapshot", imageType: imageType });
+}
+
 function PlayerContainer(url) {
     this.url = url;
 
@@ -666,6 +677,10 @@ PlayerContainer.prototype.getRecordedData = function(offset, size, buffer) {
     this.audioRecorder.data = new Uint8Array(this.audioRecorder.data.buffer.slice(toRead));
 };
 
+PlayerContainer.prototype.startSnapshot = function(imageType) {
+    this.player.startSnapshot(imageType);
+}
+
 var AudioRecorder = function(aMimeType) {
     this.mimeType = aMimeType || "audio/ogg";
     this.eventListeners = {};
@@ -1088,3 +1103,7 @@ Native.create("com/sun/mmedia/NativeTonePlayer.nStopTone.(I)Z", function(appId)
     console.warn("com/sun/mmedia/NativeTonePlayer.nStopTone.(I)Z not implemented.");
     return true;
 });
+
+Native.create("com/sun/mmedia/DirectPlayer.nStartSnapshot.(ILjava/lang/String;)V", function(handle, imageType) {
+    Media.PlayerCache[handle].startSnapshot(imageType);
+});