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Separate resizer output #56

d2rk opened this Issue Feb 25, 2014 · 3 comments


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d2rk commented Feb 25, 2014

Does it any easy way, how to create two streams: original size video and resized video?

@waveform80 waveform80 added this to the 1.3 milestone Feb 26, 2014

@waveform80 waveform80 self-assigned this Feb 26, 2014


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waveform80 commented Feb 26, 2014

Currently picamera doesn't provide an API for using multiple ports of the splitter simultaneously, other than for recording a video while capturing an image from the video port. However, I don't think it'd be terribly difficult to add this. For example, I could extend the capture methods and the start_recording method with another parameter, e.g. splitter_port which defaults to something sensible (so no-one's existing code gets broken) but where you could specify a free splitter port (as an integer number) to start multiple simultaneous recordings or video-port based captures, with different resizer specifications. I'll set this as an enhancement goal for the next release (whenever that might be! I'm afraid it'll probably be a couple of weeks before I get a chance to look at implementing this)


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d2rk commented Feb 26, 2014

Sounds good to me. Ideally I would like to have two pipes where the first one streams original video and another one streams resized video.

I was able to do something like in raspivid by applying resizer with h.264 encoder on video capture port.


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d2rk commented Mar 5, 2014


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