[HN Gopher] Mastershot - Web based video editor
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       Mastershot - Web based video editor
        
       Author : thunderbong
       Score  : 106 points
       Date   : 2021-06-06 18:23 UTC (4 hours ago)
        
 (HTM) web link (mastershot.app)
 (TXT) w3m dump (mastershot.app)
        
       | aloisdg wrote:
       | Is it open source?
        
       | arciini wrote:
       | This looks pretty cool! I've been using Kapwing for similar
       | purposes (https://www.kapwing.com/) and this reminds me of
       | Kapwing in its earlier days. Definitely a bit basic without all
       | the effects and overlays, but looks like a nice MVP.
       | 
       | As someone who used to run my own video sharing site in the
       | 2000s, it's super cool seeing how videos can just render so
       | quickly in my browser and be moved around.
        
       | stevenicr wrote:
       | scrolled up and down twice looking for 'privacy policy' and
       | 'about us / contact'
       | 
       | Did notice third time scroll that look that a heading for
       | 'security' seemed to explain..
       | 
       | contact and about us so as to see jurisdiction / trust/.
       | 
       | I guess this could be ported as a web app / home screen icon
       | thing?
       | 
       | I'd love to connect this with mediapress/buddypress/wp
       | 
       | and if I could find a way to push a list to a self hosted server
       | app that would run a browser on the server to pull via youtubedl
       | and spit out some mp3s to collect and listen later.
       | 
       | sounds great!
        
       | rho4 wrote:
       | Almost gave up trying when I finally realized I had to click that
       | tiny green plus button, which only appears on hover. Looking
       | promising, with lots of room for usability improvements.
        
       | Johnyma22 wrote:
       | "Currently we only support Chrome or Chromium based browsers"
       | 
       | Please support Firefox.
        
         | machello13 wrote:
         | Ah, so it's a Chrome-based video editor, not a web-based one.
        
         | navanchauhan wrote:
         | It uses ffmpeg (compiled to WASM) and currently only Chromium
         | browsers support SharedArrayBuffers.
         | 
         | SAFs were disabled on all major browsers after the Spectre
         | exploit iirc. Slowly but steadily they'll patch and bring the
         | feature back, and it'll automatically be compatible with those
         | browsers then.
         | 
         | Edit: Apparently Firefox does have SharedArrayBuffer
         | support[0], but needs special headers.
         | 
         | [0] https://caniuse.com/sharedarraybuffer
        
           | lights0123 wrote:
           | Chrome needs the same headers too since Chrome 91, as it was
           | violating CORS without requiring them.
        
             | arkadiyt wrote:
             | It does not require CORS (cross origin resource sharing),
             | it requires COEP/COOP.
        
           | mogstripe wrote:
           | I made a similar site and it works fine in firefox after the
           | headers are added: https://editclips.online/
        
           | [deleted]
        
           | lazyresearcher wrote:
           | Firefox does support SharedArrayBuffers again
           | https://caniuse.com/mdn-
           | javascript_builtins_sharedarraybuffe...
        
             | navanchauhan wrote:
             | Quick question, what's the difference between the
             | SharedArrayBuffers you linked and the ones I linked in my
             | edit
        
               | jchw wrote:
               | One of them was imported from MDN (and is more accurate,
               | at least in this case.)
               | 
               | https://hacks.mozilla.org/2019/09/caniuse-and-mdn-compat-
               | dat...
        
       | mentos wrote:
       | Don't have the time to create an account right now, its probably
       | a lot of work to delay account creation but might probably worth
       | considering.
        
       | AndrewHart wrote:
       | Looks promising. One feature I'd need is ability to change the
       | resolution to vertical - the same as the video I'm inputting.
        
       | yashasolutions wrote:
       | Nice piece of work. Not sure to which audience it caters but good
       | luck to its creators.
       | 
       | Unrelated to this project, a similar open source tool kit is
       | definitely missing in the general video content creation
       | landscape...
        
       | MR4D wrote:
       | Dumb question, but if everything happens on my computer, and it's
       | 100% free, then why do I need an account?
       | 
       | It seems like one of these is not like the other.
        
         | azangru wrote:
         | Yeah.
         | 
         | Compare this with Subtitle Horse [0], a fantastic web-based
         | subtitles editor that loads user's video to the browser storage
         | (I guess? it certainly predates the file system access api),
         | and does not require an account.
         | 
         | [0] -- https://subtitle-horse.com
        
           | kfarr wrote:
           | Yes subtitle horse is a lesser known hero for video
           | accessibility. Been around a long time, I remember
           | integrating the old flash based version with a video app
           | almost a decade ago!
        
         | pininja wrote:
         | It saves your project files in the account. I'd prefer they use
         | Chrome's new file system API or just allow download/upload of
         | save files, so that projects don't need an account.
         | 
         | The video trimmer and mp3 extractor don't require accounts.
        
       | bredren wrote:
       | It's final rendering performed in browser or on the server? If
       | so, how does this site remain free?
       | 
       | Under what conditions are video and audio uploaded to the site?
        
         | wbobeirne wrote:
         | The homepage says the videos never leave the browser.
        
         | antjanus wrote:
         | I often see the whole product free like this -- and then
         | pricing comes about for collaborative features, cloud storage,
         | cloud processing, etc.
         | 
         | So I'm guessing that's how it'll remain free -- as long as you
         | use your own storage space and computing power, you can see use
         | it for free.
        
         | jjcm wrote:
         | It's a webasm compiled ffmpeg that does all the heavy lifting.
         | Everything is client side. Server is just sending the webpage
         | and saving metadata for the project files. Pretty easy to host
         | something like this at a $1/1k mau level.
        
       | eatonphil wrote:
       | No info on pricing? Or I cannot find it.
        
         | layoutIfNeeded wrote:
         | "And best of all, it's 100% free"
        
           | marcodiego wrote:
           | As in beer?
        
           | eatonphil wrote:
           | Whoops! Thanks. Having a Pricing link in the header leading
           | to a section saying that again would also help.
        
             | plyptepe wrote:
             | I feel like having a Pricing link in the header would
             | indicate that it's not free. The "100% free" part is in
             | bold and there is just a few lines of text.
        
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       (page generated 2021-06-06 23:00 UTC)