Video recorder only records plain image? [openMSX]

By ren

Paladin (670)

ren's picture

06-08-2017, 13:52

I only recently tried to record (log) video with openMSX, but it seems the resulting video is without any processing (effects / monitor simulation settings) enabled. There doesn't seem to be an option to enable this.

I would expect openMSX to record with effects in place, like the screenshot command does, and to record plain using the -raw option.

Is this something that can be implemented (or am I missing something here)?

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By Manuel

Ascended (13299)

Manuel's picture

06-08-2017, 16:09

It could be implemented, but it was intentionally not implemented like that (so far). I guess it has to do with the fact that we started off with the ZMBV codec, which is very efficient for low-amount-of-color frames. This efficiency is destroyed by post-processing, as it will add a lot of colors of course. Also, I'm not sure how images scaled on the GPU can be efficiently put in a file to record.
Anyway, it won't be implemented very soon I guess. We should probably first allow other codecs first. The Ogg Theora format/codec comes to mind as we have already a dependency on that.

As a workaround, you can use the usual window-grabber to record the post-processed images.

Anyway, as usual, nothing is really planned. But who knows. Perhaps someone willing to help on it. Or some regular dev is interested to implement it. You never know Smile

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