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• Library for creating a layered image builder

  28 juillet 2022, par Ashley Hewins

  I'm looking to build a layered image builder where the user journey is as follows :

  


  

  1. Click start

  


  2. Select layer 1 from a carousel

  


  3. Select layer 2 from a new carousel

  


  4. Select layer 3 from another carousel

  


  5. See final layered image where all layers are on top of each other

  


  6. Download image via QR code scanned on a mobile device.

  


  7. Restart - save image to local folder as back up

  


  


  This will be running on a Windows tablet at an event where people come up to the booth to build their image.

  


  What language or library would be best for building this sort of app ? Haven't found one on google that matches requirements just yet.

  


• My discord bot did work on local, but didn't work on heroku

  26 juillet 2022, par PeeP

  I depoly my discord bot on Heroku.
My bot sings normally when running on local,
If I run it on Heroku, the song will not play.
Full code is here

  


  @commands.command(name ="play")
    async def play_music(self, ctx, *keywords):
        if ctx.voice_client is None: 
            if ctx.author.voice:
                await ctx.author.voice.channel.connect()
            else:
                embed = discord.Embed(title = 'erro', description = "use after enter the channel 🤔", color = discord.Color.red())
                await ctx.send(embed=embed)
                raise commands.CommandError("Author not connected to a voice channel.")
        elif ctx.voice_client.is_playing():
            ctx.voice_client.stop()
        
        keyword = ' '.join(keywords)
        url = getUrl(keyword)
        await ctx.send(url)
        embed = discord.Embed(title = 'play', description = 'getting ready to play the song! 😎' , color = discord.Color.red())
        await ctx.send(embed=embed)


  


  It works up to the top code, but it doesn't seem to work on the bottom code.

  


          data = self.DL.extract_info(url, download = False)
        link = data['url']
        title = data['title']

        ffmpeg_options = {
            'options': '-vn',
            "before_options": "-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5"
        }
        player = discord.FFmpegPCMAudio(link, **ffmpeg_options, executable = "./ffmpeg/bin/ffmpeg.exe")
        ctx.voice_client.play(player)
        
        embed = discord.Embed(title = 'play', description = f'{title} start play! 🐥' , color = discord.Color.blue())
        await ctx.send(embed=embed)


  


  My heroku Buildpacks

  


  heroku/python
https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git
https://github.com/xrisk/heroku-opus
https://github.com/heroku/heroku-buildpack-apt.git
https://github.com/heroku/heroku-buildpack-apt
https://github.com/kitcast/buildpack-ffmpeg.git
https://github.com/codeinteger6/heroku-buildpack-libopus.git
https://github.com/heroku/heroku-buildpack-apt.git


  


  requirements.txt

  


  discord.py
discord.py[voice]
asyncio
openpyxl
youtube_dl
requests
ffmpeg
PyNaCl
wheel
websockets==6.0
gtts
PyGithub
pyssml
gspread
oauth2client
PyOpenSSL
boto3


  


  Aptfile

  


  git
libopus0
libopus-dev
libssl-dev
libffi-dev
libsodium-dev


  


  I really wanna know my problems.
Thank you.

  


• Can I stream a static image feed into a video with Node.js ?

  5 juillet 2022, par Quentin Lamotte

  I want to create a small PoC where I can stream a static image source into a video. The idea behind that is that I have an (old) IP camera that only serves snapshots on an HTTP endpoint. When calling that endpoint, you get a static JPEG picture. Let's say, the URL I want to "convert" is : http://mycamera.local/live.jpg

  


  Now, I want to create a script using Node.js to quickly call that URL over and over in order to form some sort of video stream. I'm not an expert into media encoding and stuff, but I guess that the variable refresh rate induced by HTTP latency, the camera's FPS... would make it a bit trickier to pipe images into a video response ?

  


  I thought I'd go with Express and Axios to serve and query HTTP content. I've also read that FFmpeg could play a role in there. But, I am open to any suggestion. I could even switch languages if that's required. This question is so specific I think, that any response would do.

  


  A couple of requirements I cannot change :

  


  

  • The camera can only serve static pictures on a single endpoint.

  


  • I have no other protocol than HTTP on the camera.

  


  • I am not buying or modifying the existing hardware, even though I know there are very cheap units out there.

  


  • My server must serve a live video that could be streamed by VLC for instance.