Added commands to despill and frei0r filters. On Wed, Nov 18, 2020 at 3:48 PM Michael Koch <astroelectro...@t-online.de> wrote:
> Am 18.11.2020 um 14:40 schrieb Moritz Barsnick: > > On Mon, Nov 16, 2020 at 20:15:54 +0100, Michael Koch wrote: > >> Oh, what a pity. We need more filters with support for commands. Now > >> that I have found out how to send zmq commands from C# code, there are > >> so many nice things that could be done with FFmpeg in real time. > >> Especially when adjusting parameters that need visual feedback, for > >> example brightness, contrast, gamma, color corrections, colorkey > >> parameters, despill parameters and so on... > > Paul has worked heavily over the last few months to add command support > > to filters (and to properly document it). I guess it just isn't trivial > > in many cases, as the filters sometimes have not been designed with > > runtime reconfiguration in mind. (Any it may not be possible at all in > > certain cases.) > > Yes, I know that Paul has added command support to many filters and I > really appreciate this work! > Paul, is it possible to add command support also for the despill filter? > I'm asking because I've written a C# tool for bluescreening in real > time. The foreground video comes from a camera via HDMI to USB converter > (these cheap chinese converters are great!). The background comes from a > file and is played in an endless loop. I have attached a screenshot. The > color bars are the built-in test image from the HDMI to USB converter. > All parameters can be adjusted with the scrollbars in real time and are > sent to the FFmpeg process as zmq messages. It's already running fine. > The only problem is that the despill parameters can't be updated in real > time. They become effective after stopping and re-starting FFmpeg (which > takes about 2 seconds). > > If you want to see how this was programmed, have a look at chapter 2.56 > of my book: > www.astro-electronic.de/FFmpeg_Book.pdf > > Michael > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".