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Supported dynamic resolution change by DV timings & ioctl() timeout #164

Merged
merged 5 commits into from
Oct 14, 2018
Merged

Supported dynamic resolution change by DV timings & ioctl() timeout #164

merged 5 commits into from
Oct 14, 2018

Commits on Sep 12, 2018

  1. Supported dynamic resolution change by DV timings & timeout 

    input_uvc had two problems:

1) It hangs if you disconnect the camera cable (or HDMI cable from capture board) while mjpg-streamer was running on ioctl(VIDIOC_DQBUF). I added select() befure this syscall and now mjpg streamer closes after timeout (5 sec. by default). It can be changed by option -timeout.

2) When using video capture devices, it is possible to change the resolution spontaneously when changing the source. I added support of DV timings events and now mjpg-streamer don't hang on changing source disconnecting/connecting cable - it changes resolution automatically and and continues streaming.

Both these changes are necessary for work Auvidea B101 board:
https://auvidea.com/b101-hdmi-to-csi-2-bridge-15-pin-fpc/

This is a very promising device for video processing. It's officially supports by Raspberry Pi team:
https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=120702
    @mdevaev
    mdevaev committed Sep 12, 2018
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  2. minor improvements

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    mdevaev committed Sep 12, 2018
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  3. review fixes

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    mdevaev committed Sep 12, 2018
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  4. small refactoring

    @mdevaev
    mdevaev committed Sep 12, 2018
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  5. A more correct subscription to DV events that prevents possible hangs

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    mdevaev committed Sep 12, 2018
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