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Is this possible in MacOS at all? I have an RX100 V and an Elgato Camlink HD, but would love to use that capture card w another cam, and use the RX100 over USB

Is this possible in MacOS at all? I have an RX100 V and an Elgato Camlink HD, but would love to use that capture card w another cam, and use the RX100 over USB simultaneously.

ceocoder 6y ago
Looks like both gphoto2 and ffmepg are available on homebrew, worth giving it a shot for sure. FWIW - I did end up building my own ffmpeg because debian default didn't have NVIDIA support. Want me to give it a try?
- dmerrick 6y ago
  I'd love it if you gave it a try! I've already spent enough hours re-compiling ffmpeg to get nvenc support :)
  - ceocoder 6y ago
    Spoke too soon, v4l2loopback-utils is the missing piece on mac. Found this with a basic search[0], if anyone enterprising enough wants to take a crack at it https://apple.stackexchange.com/questions/353168/how-can-i-create-video-loopback-devices-on-os-x-is-there-a-mac-equivalent-of-v4 https://apple.stackexchange.com/questions/353168/how-can-i-c...
- rayshan 6y ago
  Yes please! Would love to use my X-T30 as a webcam on my mac.
evan_ 6y ago
Cascable Pro Webcam claims to support the RX100 V: https://cascable.se/pro-webcam/ https://cascable.se/pro-webcam/ Compatibility table: https://cascable.se/help/compatibility/ https://cascable.se/help/compatibility/
enjoylife 6y ago
It works for Mac brew install gphoto2 brew install ffmpeg --with-ffplay gphoto2 --abilities # Abilities for camera : Sony Alpha-A6300 (Control) # ... gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f matroska - | ffplay - I'm piping it to ffplay,so this will at least let you test your camera or you could also use it in OBS as a window source. Also, make sure your cameras usb mode is not set to "mass storage" but to a “Remote Camera Control”.
- ceocoder 6y ago
  can you try piping that to gstreamer?
  - enjoylife 6y ago
    Sure, not sure what gstreamer plugin/sink would create a loopback device, but this plays as well. gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f matroska - | gst-launch-1.0 fdsrc fd=0 ! decodebin ! videoconvert ! videoscale ! autovideosink
    - ceocoder 6y ago
      per this - https://apple.stackexchange.com/a/356362 https://apple.stackexchange.com/a/356362 it should be, osxvideosink I wonder if this works, gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f matroska - | gst-launch-1.0 fdsrc fd=0 ! decodebin ! videoconvert ! videoscale ! osxvideosink
- code_biologist 6y ago
  Thanks for the tip, really appreciate the actual commands. I'm wondering if anyone else is running into this: $ brew install ffmpeg --with-ffplay Usage: brew install [options] formula # Install flags here, nothing about --with. Error: invalid option: --with-ffplay
  - 6y ago
cactus2093 6y ago
Here's a simple gui app[0] that creates a syphon stream, and you can use that from an app called camera twist or possibly from OBS as well. [0] https://github.com/v002/v002-Camera-Live https://github.com/v002/v002-Camera-Live

Is this possible in MacOS at all? I have an RX100 V and an Elgato Camlink HD, but would love to use that capture card w another cam, and use the RX100 over USB simultaneously.

ceocoder 6y ago

Looks like both gphoto2 and ffmepg are available on homebrew, worth giving it a shot for sure. FWIW - I did end up building my own ffmpeg because debian default didn't have NVIDIA support. Want me to give it a try?

dmerrick 6y ago
I'd love it if you gave it a try! I've already spent enough hours re-compiling ffmpeg to get nvenc support :)
- ceocoder 6y ago
  Spoke too soon, v4l2loopback-utils is the missing piece on mac. Found this with a basic search[0], if anyone enterprising enough wants to take a crack at it https://apple.stackexchange.com/questions/353168/how-can-i-create-video-loopback-devices-on-os-x-is-there-a-mac-equivalent-of-v4 https://apple.stackexchange.com/questions/353168/how-can-i-c...
rayshan 6y ago
Yes please! Would love to use my X-T30 as a webcam on my mac.

evan_ 6y ago

Cascable Pro Webcam claims to support the RX100 V: https://cascable.se/pro-webcam/ https://cascable.se/pro-webcam/ Compatibility table: https://cascable.se/help/compatibility/ https://cascable.se/help/compatibility/

enjoylife 6y ago

It works for Mac brew install gphoto2 brew install ffmpeg --with-ffplay gphoto2 --abilities # Abilities for camera : Sony Alpha-A6300 (Control) # ... gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f matroska - | ffplay - I'm piping it to ffplay,so this will at least let you test your camera or you could also use it in OBS as a window source. Also, make sure your cameras usb mode is not set to "mass storage" but to a “Remote Camera Control”.

ceocoder 6y ago
can you try piping that to gstreamer?
- enjoylife 6y ago
  Sure, not sure what gstreamer plugin/sink would create a loopback device, but this plays as well. gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f matroska - | gst-launch-1.0 fdsrc fd=0 ! decodebin ! videoconvert ! videoscale ! autovideosink
  - ceocoder 6y ago
    per this - https://apple.stackexchange.com/a/356362 https://apple.stackexchange.com/a/356362 it should be, osxvideosink I wonder if this works, gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f matroska - | gst-launch-1.0 fdsrc fd=0 ! decodebin ! videoconvert ! videoscale ! osxvideosink
code_biologist 6y ago
Thanks for the tip, really appreciate the actual commands. I'm wondering if anyone else is running into this: $ brew install ffmpeg --with-ffplay Usage: brew install [options] formula # Install flags here, nothing about --with. Error: invalid option: --with-ffplay
- 6y ago

cactus2093 6y ago

Here's a simple gui app[0] that creates a syphon stream, and you can use that from an app called camera twist or possibly from OBS as well. [0] https://github.com/v002/v002-Camera-Live https://github.com/v002/v002-Camera-Live