Upload: Fix video upload (#3671)

src/api/gramjs/methods/messages.ts

@@ -618,16 +618,16 @@ async function uploadMedia(localMessage: ApiMessage, attachment: ApiAttachment,
     }
   };
 
-  const fetchAndUpload = async (url: string) => {
+  const fetchAndUpload = async (url: string, progressCallback?: (progress: number) => void) => {
     const file = await fetchFile(url, filename);
-    return uploadFile(file, patchedOnProgress);
+    return uploadFile(file, progressCallback);
   };
 
   const isVideo = SUPPORTED_VIDEO_CONTENT_TYPES.has(mimeType);
   const shouldUploadThumb = audio || isVideo || shouldSendAsFile;
 
   const [inputFile, thumb] = await Promise.all(compact([
-    fetchAndUpload(blobUrl),
+    fetchAndUpload(blobUrl, patchedOnProgress),
     shouldUploadThumb && previewBlobUrl && fetchAndUpload(previewBlobUrl),
   ]));
 

src/util/files.ts

@@ -95,7 +95,10 @@ export async function createPosterForVideo(url: string): Promise<string | undefi
         canvas.height = video.videoHeight;
         const ctx = canvas.getContext('2d')!;
         ctx.drawImage(video, 0, 0);
-        resolve(canvas.toDataURL('image/jpeg'));
+
+        canvas.toBlob((blob) => {
+          resolve(blob ? URL.createObjectURL(blob) : undefined);
+        });
       };
       video.onerror = reject;
       video.currentTime = Math.min(video.duration, 1);