From 3e5b2ca502925b839243ac011e9c791ced8babb4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Ml=C3=A1dek?= <t@mldk.cz>
Date: Sat, 2 Nov 2019 11:53:47 +0100
Subject: [PATCH] get rid of ccapture.js, use MediaRecorder api instead

recording now works in Firefox
less dependencies
---
 package-lock.json         | 4421 +++++++++++++++++++------------------
 package.json              |    4 +-
 src/components/Player.vue |   55 +-
 3 files changed, 2326 insertions(+), 2154 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index f0c71b9..27634bf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -60,12 +60,6 @@
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@@ -1189,24 +1183,15 @@
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+    "bfj-node4": {
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+      "resolved": "https://registry.npmjs.org/bfj-node4/-/bfj-node4-5.3.1.tgz",
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       "dev": true,
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-        "check-types": "^8.0.3",
-        "hoopy": "^0.1.4",
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+        "bluebird": "^3.5.1",
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@@ -1534,55 +1519,41 @@
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+        "browserslist": "^1.3.6",
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         "lodash.memoize": "^4.1.2",
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-              "dev": true
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+            "caniuse-db": "^1.0.30000639",
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-        "electron-to-chromium": {
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-          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.296.tgz",
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-          "dev": true
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+    "caniuse-db": {
+      "version": "1.0.30001006",
+      "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30001006.tgz",
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-      "resolved": "https://registry.npmjs.org/ccapture.js/-/ccapture.js-1.0.7.tgz",
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@@ -1616,9 +1587,9 @@
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+      "resolved": "https://registry.npmjs.org/clap/-/clap-1.2.3.tgz",
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+          "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
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@@ -1729,6 +1736,12 @@
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+      "resolved": "https://registry.npmjs.org/coa/-/coa-1.0.4.tgz",
+      "integrity": "sha1-qe8VNmDWqGqL3sAomlxoTSF0Mv0=",
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@@ -1806,13 +1780,14 @@
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-        "simple-swizzle": "^0.2.2"
+        "color-name": "^1.0.0"
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+      "integrity": "sha1-6i90IKcrlogaOKrlnsEkpvcpgTM=",
+      "dev": true,
+      "requires": {
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@@ -2241,164 +2232,85 @@
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-          "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
-          "integrity": "sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==",
-          "dev": true,
-          "requires": {
-            "debug": "2.6.9",
-            "depd": "~1.1.2",
-            "destroy": "~1.0.4",
-            "encodeurl": "~1.0.2",
-            "escape-html": "~1.0.3",
-            "etag": "~1.8.1",
-            "fresh": "0.5.2",
-            "http-errors": "~1.7.2",
-            "mime": "1.6.0",
-            "ms": "2.1.1",
-            "on-finished": "~2.3.0",
-            "range-parser": "~1.2.1",
-            "statuses": "~1.5.0"
-          }
-        },
-        "serve-static": {
-          "version": "1.14.1",
-          "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
-          "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
-          "dev": true,
-          "requires": {
-            "encodeurl": "~1.0.2",
-            "escape-html": "~1.0.3",
-            "parseurl": "~1.3.3",
-            "send": "0.17.1"
-          }
-        },
-        "setprototypeof": {
-          "version": "1.1.1",
-          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
-          "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==",
-          "dev": true
-        },
-        "statuses": {
-          "version": "1.5.0",
-          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
-          "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=",
-          "dev": true
-        },
-        "supports-color": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
-          "dev": true,
-          "requires": {
-            "has-flag": "^3.0.0"
-          }
-        },
-        "type-is": {
-          "version": "1.6.18",
-          "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
-          "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
-          "dev": true,
-          "requires": {
-            "media-typer": "0.3.0",
-            "mime-types": "~2.1.24"
-          }
         }
       }
     },
@@ -14057,10 +14208,11 @@
       "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
       "dev": true
     },
-    "whammy": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/whammy/-/whammy-0.0.1.tgz",
-      "integrity": "sha1-z0vtn7qmh+2j9CCV/5m/cEsI0B4="
+    "whet.extend": {
+      "version": "0.9.9",
+      "resolved": "https://registry.npmjs.org/whet.extend/-/whet.extend-0.9.9.tgz",
+      "integrity": "sha1-+HfVv2SMl+WqVC+twW1qJZucEaE=",
+      "dev": true
     },
     "which": {
       "version": "1.3.0",
@@ -14125,12 +14277,13 @@
       }
     },
     "ws": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
-      "integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-4.1.0.tgz",
+      "integrity": "sha512-ZGh/8kF9rrRNffkLFV4AzhvooEclrOH0xaugmqGsIfFgOE/pIz4fMc4Ef+5HSQqTEug2S9JZIWDR47duDSLfaA==",
       "dev": true,
       "requires": {
-        "async-limiter": "~1.0.0"
+        "async-limiter": "~1.0.0",
+        "safe-buffer": "~5.1.0"
       }
     },
     "xml-char-classes": {
diff --git a/package.json b/package.json
index 57f578c..7f6e146 100644
--- a/package.json
+++ b/package.json
@@ -12,11 +12,9 @@
   },
   "dependencies": {
     "bowser": "^1.9.2",
-    "ccapture.js": "^1.0.7",
     "q": "^1.5.1",
     "sprintf-js": "^1.1.1",
-    "vue": "^2.5.2",
-    "whammy": "0.0.1"
+    "vue": "^2.5.2"
   },
   "devDependencies": {
     "autoprefixer": "^7.1.2",
diff --git a/src/components/Player.vue b/src/components/Player.vue
index be038ff..4d84e9a 100644
--- a/src/components/Player.vue
+++ b/src/components/Player.vue
@@ -45,8 +45,6 @@
 </template>
 
 <script>
-import CCapture from "ccapture.js";
-import bowser from "bowser";
 
 export default {
   name: "player",
@@ -68,10 +66,7 @@ export default {
       position: 0,
       tmp_ctx: null,
       animation_id: null,
-      capturer: new CCapture({
-        format: "webm",
-        verbose: true,
-      }),
+      recorder: null,
     };
   },
   computed: {
@@ -158,13 +153,9 @@ export default {
     },
     recording: function () {
       if (this.recording) {
+        this.looping = false;
         this.position = 0;
-        if (!bowser.chrome) {
-          alert("Recording only supported in Chrome :( \n" +
-            "https://github.com/spite/ccapture.js/#limitations");
-        }
       }
-      this.looping = false;
     },
   },
   methods: {
@@ -186,6 +177,10 @@ export default {
         console.log("STOPPED");
         cancelAnimationFrame(this.animation_id);
         this.playing = false;
+        if (this.recording && this.recorder) {
+          this.recorder.stop();
+          this.recording = false;
+        }
       }
     },
     playOnceOrPause: function () {
@@ -199,11 +194,17 @@ export default {
       }
     },
     recordSequence: function () {
+      try {
+        this.createRecorder();
+      } catch (err) {
+        alert("Error initializing recording!\n" + err);
+        return;
+      }
       this.looping = false;
       this.recording = true;
       this.stop();
       this.position = 0;
-      this.capturer.start();
+      this.recorder.start();
       this.play();
     },
     loopFullscreen: function () {
@@ -222,14 +223,9 @@ export default {
       if (this.position < this.frames) {
         this.position += 1;
         this.animation_id = requestAnimationFrame(this.$render_advance);
-        if (this.recording) this.capturer.capture(this.$refs.canvas);
       } else {
         if (!this.looping) {
           this.stop();
-          if (this.recording) {
-            this.capturer.stop();
-            this.capturer.save();
-          }
         } else {
           this.animation_id = requestAnimationFrame(this.$render_advance);
         }
@@ -245,6 +241,31 @@ export default {
         x, y, w, h,
         0, 0, w * this.zoom, h * this.zoom);
     },
+    createRecorder: function () {
+      const stream = this.$refs.canvas.captureStream();
+      this.recorder = new MediaRecorder(stream, {mimeType: "video/webm"});
+      if (!this.recorder) {
+        throw new Error("Unknown error, couldn't initialize recorder.");
+      }
+      this.recorder.ondataavailable = function (event) {
+        if (!event.data) {
+          alert.error("Error during recording: No data available!");
+          return;
+        }
+        const blob = new Blob([event.data], {type: "video/webm"});
+        const url = window.URL.createObjectURL(blob);
+        const a = document.createElement("a");
+        a.style.display = "none";
+        a.href = url;
+        a.download = "slitscan.webm";
+        document.body.appendChild(a);
+        a.click();
+        setTimeout(() => {
+          document.body.removeChild(a);
+          window.URL.revokeObjectURL(url);
+        }, 100);
+      };
+    },
   },
 };
 </script>