Pipe2jpeg - inject images separately?

General
1

Perhaps @kevinGodell could provide some guidance.

Is it possible to inject a buffer into pipe2jpeg and have that become an endpoint with a 'video' stream ?

ie. I have a single image sitting in flow context as a buffer, this image changes every x minutes.
Can I inject this buffer (every second for example) directly into pipe2jpeg ? It does not seem to work, is there a way that i could 'emulate' this as a 'stream' ?

2

Ok found the method (i think), save the image to a file and use ffmpeg to feed it into pipe2jpeg

ffmpeg -re -loop 1 -i /path/image.jpg -f image2pipe -c mjpeg -t 00:02:00 pipe:1
3

I'm intrigued as to your use case, can you elaborate on what you are doing please ?

4

This is just some tomfoolery, bear with me :')

I create a webpage showing a chart, news headlines, or whatever I want.
Then use puppeteer to capture a screenshot of that webpage.
Feed the screenshot into pipe2jpeg to make it available as a stream.

This stream can be exposed to homekit (via homebridge) as a security camera:

image
image1170Ă—1168 68.7 KB

:')

Now I could create my own 'live station' of data i want to show, i noticed that i can kill ffmpeg and restart with another file and the stream will get updated.

ie: charts in homekit :laughing:

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5

Interesting idea, but this doesn't seem overly efficient for a static image, how about reducing the frame rate to 1 ?

ffmpeg -re -loop 1 -r 1 -i /path/image.jpg -f image2pipe -c mjpeg -t 00:02:00 pipe:1

Same effect but much less bandwidth :thinking:

EDIT: Alternatively take a look at @BartButenaers node -

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