Add util and rewrite examples (WIP)

2022-09-23 17:11:48 +08:00
parent 6e9d91483e
commit f2b68cb34c
109 changed files with 1669 additions and 851 deletions
--- a/apps/browser/concatDemuxer.html
+++ b/apps/browser/concatDemuxer.html
@@ -0,0 +1,55 @@
+<html>
+  <head>
+    <script src="/dist/ffmpeg.dev.js"></script>
+    <style>
+      html,
+      body {
+        margin: 0;
+        width: 100%;
+        height: 100%;
+      }
+
+      body {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+      }
+    </style>
+  </head>
+
+  <body>
+    <h3>Select multiple video files to Concatenate</h3>
+    <video id="output-video" controls></video><br />
+    <input type="file" id="uploader" multiple />
+    <p id="message"></p>
+    <script>
+      const { createFFmpeg, fetchFile } = FFmpeg;
+      const ffmpeg = createFFmpeg({ log: true });
+
+      const transcode = async ({ target: { files } }) => {
+        const message = document.getElementById("message");
+        message.innerHTML = "Loading ffmpeg-core.js";
+        await ffmpeg.load();
+        message.innerHTML = "Start Concating";
+        const inputPaths = [];
+        for (const file of files) {
+          const { name } = file;
+          ffmpeg.FS('writeFile', name, await fetchFile(file));
+          inputPaths.push(`file ${name}`);
+        }
+        ffmpeg.FS('writeFile', 'concat_list.txt', inputPaths.join('\n'));
+        await ffmpeg.run('-f', 'concat', '-safe', '0', '-i', 'concat_list.txt', 'output.mp4');
+        message.innerHTML = "Complete Concating";
+        const data = ffmpeg.FS('readFile', 'output.mp4');
+        const video = document.getElementById("output-video");
+        video.src = URL.createObjectURL(
+          new Blob([data.buffer], {
+            type: "video/mp4"
+          })
+        );
+      };
+      const elm = document.getElementById("uploader");
+      elm.addEventListener("change", transcode);
+    </script>
+  </body>
+</html>