provide option to select pattern on no video

[dericed]

During the recording of files on unstable analog sources, bmdcapture will insert a pattern if there is no video (since 5a844f98c2c6c6387bdaa2186c6ac4c8b7cf839a). In 8 bit it is a color bar pattern and in 10 bit it is uyvy422 data rendered in v210 so a green/purple partial frame pattern. When working with unstable analog sources there are times when no frame data is received in the middle of a recording and the pattern is used. I propose that the pattern be selectable with color bars as default but including an option for black. I think an inserted occasional black frame would be less distracting to the current way bmdcapture handles unstable signals. I'm attaching two examples of the current state.

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[lu-zero]

That is easier to do, I'm pondering about adding a loader later to get any image. I'll bake something tonight, can you test it and report back?

On Mon, Jun 8, 2015 at 6:35 PM, Dave Rice [email protected] wrote:

During the recording of files on unstable analog sources, bmdcapture will insert a pattern if there is no video (since 5a844f9 https://github.com/lu-zero/bmdtools/commit/5a844f98c2c6c6387bdaa2186c6ac4c8b7cf839a). In 8 bit it is a color bar pattern and in 10 bit it is uyvy422 data rendered in v210 so a green/purple partial frame pattern. When working with unstable analog sources there are times when no frame data is received in the middle of a recording and the pattern is used. I propose that the pattern be selectable with color bars as default but including an option for black. I think an inserted occasional black frame would be less distracting to the current way bmdcapture handles unstable signals. I'm attaching two examples of the current state.

[image: bars1] https://cloud.githubusercontent.com/assets/762604/8039895/afd0f560-0dda-11e5-9865-2336485724cd.gif [image: bars2] https://cloud.githubusercontent.com/assets/762604/8039896/afd32e48-0dda-11e5-8d63-6ed1f8e9f9f4.gif

— Reply to this email directly or view it on GitHub https://github.com/lu-zero/bmdtools/issues/55.

[dericed]

I made some progress at replicated your color bars in v210 but got stuck at padding the line to a multiple of 128. At any rate IMHO simply getting black instead of the color bars is the greater need. I am happy to test.

[dericed]

It works for me. Also could also set a new github release?

[lu-zero]

Let me shuffle some commits, I'm in the middle of adding support of vanc data now that eventually I have access to content using it.

And I have another toy you will like a lot brewing, but probably I'll need your help (more on private email).