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unlimited video length on canon sx40?

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Offline gor

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unlimited video length on canon sx40?
« on: 01 / February / 2019, 14:58:18 »
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Hi, is it possible to have unlimited video length on the sx40 with 1040p without stopping auto restarting the video.. i mean, is it possible to have a complete 1 or 2 hour video without any gap?    I've loaded chdk but don't see this option anywhere.  I've read about some scripts allow other models where the video will auto restart, but this isn't what i'm looking for ; i'm looking for a continous video shoot that would be limited by the battery or 64 gig sd card.

if it is possible, please send me to the right script.

thanks.
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Offline waterwingz

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Re: unlimited video length on canon sx40?
« Reply #1 on: 01 / February / 2019, 22:44:00 »
Quote from: gor on 01 / February / 2019, 14:58:18
if it is possible, please send me to the right script.
Might be possible by so far, nobody has figured it out.
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Offline c_joerg

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Re: unlimited video length on canon sx40?
« Reply #2 on: 02 / February / 2019, 01:30:05 »
May be just a timer which have to cancel like the retract timer…
https://chdk.setepontos.com/index.php?topic=9969.540

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Offline srsa_4c

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Re: unlimited video length on canon sx40?
« Reply #3 on: 02 / February / 2019, 05:16:09 »
The time limit hack is not a script, it has to be implemented in CHDK source. Only a few of the newer cameras are supported, the sx40 is not one of them.
However, OP is talking about 1...2 hours of uninterrupted video recording, in full HD. According to its specs, this camera records 4GB of full HD video in approx. 14.5 minutes. Since 4GB is a hard limit (a video file can't be larger than that), the recording bitrate would have to be lowered to approx. quarter of default (for 1 hour) or 1/8 of default (for a 2 hour recording).
The sx40 port does in theory support adjustment of video quality, but I don't know if that actually works for lowering bitrate. Also, I'm not sure if the visual quality of a reduced bitrate video would be sufficient to OP.
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