better handle for video signal interruption

[martialgallorini]

Hi,

i use bmd-streamer to stream an SDI video camera image through UDP Multicast.
when signal breaks (camera disconnected or off) stream breaks and error occurs.
reconnecting the camera (or turning back on) doesn't fix. Stream needs to manually be launched again.

would be nice if stream cleanly stops and waits for the signal to appear again.

thank you

[fabled]

Are you disconnecting encoder, or camera? I believe disconnecting encoder should work. But disconnect camera probably does not. It is mentioned in the source comments. And yes, this should be fixed.

[martialgallorini]

Here are some feedback :

• Disconnecting the device (unplug usb) : stream stops and comes back when usb plugged again.
• Disconnecting camera or removing device power supply :
  [2/2 1edb:bd43]: Input Mode, 0xff (display mode 0x02) not supported1kbits/s
  [2/2 1edb:bd43]: Switching source to HDMI
  [2/2 1edb:bd43]: Input Mode, 0xff (display mode 0x02) not supported
  [2/2 1edb:bd43]: Switching source to HDMI
  [2/2 1edb:bd43]: Input Mode, 0xff (display mode 0x02) not supported
  ...etc

doesn't see the signal when camera is connected back on

[fabled]

Yes. It changes MUX to take in from HDMI. And you had SDI connected, right?

I can add a switch to select the proper input sometime this week. I just need to analyze which value was which.

[fabled]

Please re-test now with issue #7 fixed. It might fix this as well.

[martialgallorini]

ok works nice now. Can disconnect camera. Send message :
[2/32 1edb:bd43]: Input Mode, 0xff (display mode 0x02) not supported

when reconnecting : stream restarts.

so ok for me

thanks a lot

[fabled]

Ok. Good. Though, I think it will not work if the resolution changes between disconnect/connect. I'm keeping the ticket open as a reminder to fix that.