{"record":{"id":"7f6ab8525995fe16","repo":"kovidgoyal/kitty","slug":"failed-to-encode-image-data-to-s-with-error-w","errorCode":null,"errorMessage":"Failed to encode image data to %s with error: %w","messagePattern":"Failed to encode image data to (.+?) with error: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"kittens/clipboard/read.go","lineNumber":121,"sourceCode":"\t\t}\n\t}()\n\treturn images.Encode(output, img, self.mime_type)\n}\n\nfunc (self *Output) commit() {\n\tif self.err != nil {\n\t\treturn\n\t}\n\tif self.image_needs_conversion {\n\t\tself.dest.Seek(0, io.SeekStart)\n\t\timg, _, err := image.Decode(self.dest)\n\t\tself.dest.Close()\n\t\tos.Remove(self.dest.Name())\n\t\tif err == nil {\n\t\t\terr = self.write_image(img)\n\t\t}\n\t\tif err != nil {\n\t\t\tself.err = fmt.Errorf(\"Failed to encode image data to %s with error: %w\", self.mime_type, err)\n\t\t}\n\t} else {\n\t\tself.dest.Close()\n\t\tif !self.is_stream {\n\t\t\tf, err := os.OpenFile(self.arg, os.O_CREATE|os.O_RDONLY, 0666)\n\t\t\tif err == nil {\n\t\t\t\tfi, err := f.Stat()\n\t\t\t\tif err == nil {\n\t\t\t\t\tself.dest.Chmod(fi.Mode().Perm())\n\t\t\t\t}\n\t\t\t\tf.Close()\n\t\t\t\tos.Remove(f.Name())\n\t\t\t}\n\t\t\tself.err = os.Rename(self.dest.Name(), self.arg)\n\t\t\tif self.err != nil {\n\t\t\t\tos.Remove(self.dest.Name())\n\t\t\t\tself.err = fmt.Errorf(\"Failed to rename temporary file used for downloading to destination: %s with error: %w\", self.arg, self.err)\n\t\t\t}","sourceCodeStart":103,"sourceCodeEnd":139,"githubUrl":"https://github.com/kovidgoyal/kitty/blob/6d5d0c440603ad9bdf6dcd599f73f6dde21acb44/kittens/clipboard/read.go#L103-L139","documentation":"During a clipboard download commit, after decoding the received image and writing it with write_image, any accumulated error is wrapped as a failure to encode image data to the requested MIME type. It indicates the clipboard data could not be converted/written in the target format (e.g. PNG vs JPEG mismatch or an encoder error).","triggerScenarios":"`kitten clipboard getfile image.png` where the terminal supplies image data in a different format and re-encoding into the target MIME type fails; corrupted or truncated image payloads received over the OSC channel.","commonSituations":"Remote clipboard clients that advertise one image MIME type but send another; version mismatches between kitty and the client on image transfer; large images truncated by terminal buffer limits.","solutions":["Request the exact MIME type the source provides: add `--mime image/png` (or the advertised type) to avoid re-encoding","Retry the copy on the sender side so a fresh, untruncated payload is transferred","Update kitty to the latest version to pick up clipboard image-transfer fixes","If you only need the raw bytes, get the payload without forcing a different output format"],"exampleFix":"# before\nkitten clipboard getfile --mime image/jpeg out.png\n# after\nkitten clipboard getfile --mime image/png out.png","handlingStrategy":"fallback","validationCode":null,"typeGuard":null,"tryCatchPattern":"err=$(kitten clipboard getfile --mime image/png out.png 2>&1) || { echo \"$err\" | grep -q 'encode' && kitten clipboard getfile --mime image/jpeg out.jpg; }","preventionTips":["Request the MIME type the source actually provides","Retry the copy on the sender before re-fetching","Keep kitty updated on both ends"],"tags":["kitty","clipboard","image-encoding","mime-type"],"backgroundTag":"image-encode-conversion-failed","analyzedSha":"6d5d0c440603ad9bdf6dcd599f73f6dde21acb44","analyzedAt":"2026-08-27T14:20:20.142Z","schemaVersion":2},"datasetVersion":"2026-08-27T19:17:21.184Z"}