I have a vue page that has a file upload component. This allows the user to upload a file to server storage then display a thumbnail of the file uploaded for later retrieval.
The upload works fine and the server creates a thumbnail using imagemagick which is displayed on the page, this all works fine.
My problem is that the creation of the thumbnail takes a second or two which means when the file upload is finished the thumbnail isn't available immediately and I get an "image cannot be displayed" placeholder where the thumbnail should be. Refreshing the page shows the thumbnail fine.
I've jerry rigged things by adding a delay which gives the server time to create the thumbnail but it's a bit hit and miss as some files take longer to generate than others and it seems a bit poor for the user to have to wait 500ms or more before their action is complete.
How do I go about improving the user experience?
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I've added some video app previews for my app on App Store Connect and when I set the video poster frame, it never saves the image that I want, it always reverts back to the one that Apple defaults to initially. Does anyone know a work around?
UPDATE: I did get in contact with App Store Connect and they told me it's a recent bug that they're actively working on fixing. I'm going to touch base with them early next week.
Issue is still happening. But if you want to be able to upload without problems try this:
Upload the screenshots of one complete language
Don't touch anything for 2-4 min once pictures are uploaded.
Then you can refresh the webpage and check if the screenshots are well uploaded.
I'm losing my mind trying to get this to work.
So, it seems that, in React Native, Android will cache the image of a certain URL forever. If I change the image at that URL, it will not change in the app for Android, but iOS handles it just fine.
I know about the trick of just adding
`?time=${Date.now()}`
to the end of the uri specified in source={{ uri }}
However, that will fetch a new image every time, which technically works, but then the user has to wait for the image to load every time. I could add an ActivityIndicator placeholder while the image loads, but if I could properly cache the image then that ActivityIndicator wouldn't be shown nearly as often, making for better UX.
I would like to know if there's a way to check if the remote image has changed, within the constraints of Expo SDK 33 (no react-native link). I can handle the cache busting just fine if there is such a method, it would just require incrementing a persistently saved integer whenever a change is detected, and appending that to the uri.
Maybe a different approach is necessary.
I fixed this issue in the backend. If you have access to the backend, that's great!
What I did was create an API that would take in the path to the image that I wanted, and it redirected to that image, with ?lastUpdated=<modified> appended to the URL, where <modified> is the time at which that file was last modified. This way, it automatically cache busts the image whenever the image is changed!
There is any possibility to upload a file with different sizes in DropzoneJs?
I'm using vue-dropzone which is made with dropzonejs and i have to upload the same file with different sizing for srcset.
Example:
I want to upload the file test.png which is 1000x500 px. There is any possibility to upload it at the same time in original resolution and also in 500x250px?
Image resizing in the browser has been a seat-of-the pants experience for a long time. Web assemblies are the way of the future for processing-intensive tasks in web apps. I came across this project the other day. It looks fantastic and I really can't wait to strip out our home-baked image resizing with canvas and replace it with this.
The usual reason for doing this is to avoid large uploads. It's a little bit weird to want to resize in the browser then upload the original. You might be better resizing on the server. You'll save bandwidth and the server libraries will be more mature than what's available on the client.
Along with the original image object you can add one more your custom resized image to the array of images by using resize config of dropzone. You can do the above on drop event or adddedFile event of dropzone.
So I have a youtube page open where I can watch a video.
But this video was taken down by the user. My open page still has the video, if you go to it again (refresh) the new page does not.
Since I have the video loaded in my browser tab (chrome), how can I go about finding the actual file and saving it?
In the old days of YouTube, it may have been possible to find the single video file on your harddrive and save it, but this is no longer the case. As explained in this Computerphile video, all YouTube videos are now split into tiny pieces and downloaded piece by piece.
You can observe this for yourself if you open up Chrome (or Firefox's) Dev Tools and watch the nnetwork tab. You'll see:
all of the pieces of the video loading bit by bit.
One additional thing you'll learn from the Network tab is that the videos are downloaded as octet streams, so you won't be able to find the links to the pieces hidden in the DOM.
One thing you migth try is, in the Network tab, clear the results and then move the cursor to the beginning of the video. You should see the streams come up again. Right click on the path name and then do a "save as", and save it as 0000.mp4 (or whatever), for all the pieces. You should be able to reassemble these pieces in any video editing software. I tested this by getting two pieces from a random YouTube video.
I couldn't find anything that doesn't require a restart (and hence reload) of Chrome.
One (kludgy) hack if possible, though, would be to run a screen video capture and play the video.
I have done this long back using IE6, i.e. fetch the file from the temporary files location and rename it to the extension flv.
The following links should point you in the right direction, but can't say it will work for sure, as I believe recent chrome versions seem to have a defensive cache implementation.
Ubuntu Forum solutions
You might need to tweak the above for your use.
Run a screen recording/capture program such as:
Screenr
CamStudio
Then edit out the youtube bar if its visible.
The buffered video is cached at the following location:
C:\Users\<user name>\AppData\Local\Temp\flaxxxx.tmp
Note you have to change to whatever user you are using, and xxxx is a random number. Also, the .tmp file might be hidden, so make sure your windows explorer is displaying the hidden files.
While the tab is open, you won't be able to copy the file, but if you close it, the file will be automatically deleted. For doing so, download HoboCopy, extract it and after that, run cmd as administrator. Change the directory on the console to the directory where you have extracted HoboCopy and type the following command:
hobocopy C:\users\<user name>\Appdata\Local\Temp C:\videos fla1234.tmp
<user name> - replace with your windows username
C:\videos - the directory where you want the video to be copied to
fla1234.tmp - the name of the file to be copied.
Wait for the copy to be done and then you can rename the destination file, changing '.tmp' to '.flv'. This file can be played with any FLV supporting media player.
i find this software to get the video from temp files folder and play it http://www.nirsoft.net/utils/video_cache_view.html
Video file is cached, therefore suggested ways can help you to save the file. But if you deal with same problems I offer using IDM(Internet Download Manager). After installation of this application for every online video stream (e.g. all flv files in youtube) IDM brings a small picture that you can click on it and downloading will be started automatically without need of any configuration.
You have to install a browser extension to download YouTube videos. You won't find a simple URL for an mp4 file in the HTML source. Try googling "youtube downloader" + your browser name.
As far as I recall, YouTube videos are not served as a continuous HTTP resource, but instead divided into small chunks and assembled client-side by the Flash player. This is why you can jump into the middle of a video, without having to buffer the first half of the video.
Generally speaking, YouTube don't want you to rip their content, so they aren't exactly making it easy for downloaders.
I'm evaluating Fine Uploader compared to various other options, specifically JQuery File Upload.
I generally prefer the Fine Uploader approach as it's more lightweight, compared to JQuery File Uploader which has dependencies on Bootstrap and JQuery UI.
However it's important to be able to resize images: e.g., a user may select a large file from their camera and this may be very large - uploading the full resolution photo may take a very long time. JQuery File Upload doe this.
Additionally we don't have much use for very high resolution files.
If possible (I'm aware some browsers may not support this), I'd like to be able to resize images client size.
Is this possible?
Fine Uploader does not currently have any native support for image manipulation. This is a feature in our backlog, but we have not had many users tell us they are interested in this. This is one of the reasons why such a feature has yet to be implemented natively. There is a case, #707 that marks the start of native image-editing support for Fine Uploader. It is tentatively scheduled for 4.0.
However, you can certainly make use of FileReader and Canvas to resize the image. You can then submit this resized image as a Blob to Fine Uploader via the addFiles API method. At that point, the file has been submitted and Fine Uploader is ready to upload the item.
Essentially, the steps you would follow to handle this specific scenario, before Fine Uploader natively supports image manipulation:
Provide your own file input element(s) or make use of Fine Uploader's file/folder drag and drop support to get a handle on some files selected by the user.
Use FileReader to read the contents of the image.
FileReader will provide you with a URL for the image, assign that to the src attribute of an img element.
Draw the img onto a canvas element. This is where the resizing occurs.
Grab the URL of the resized image from the canvas element (canvas.toDataURL(...)).
Convert the URL to a Blob.
Pass the Blob to the addFiles API method of Fine Uploader.
The intent is to take care of most if not all of this for integrators such as yourself in the future by adding native image manipulation support to Fine Uploader.
Hope this helps.