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ipa: rpi: agc: Avoid overwriting caller's statistics pointer

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The code was inadvertently overwriting the caller's StatisticsPtr,
meaning that subsequent algorithms would get the wrong image
statistics when AGC channels changed.

This could be fix using std::ref, though I find the C-style pointer
fix easier to understand!

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
David Plowman 2023-10-13 08:48:40 +01:00 • committed by Kieran Bingham
parent ac232470fb
commit daeaf681c9
1 changed files with 3 additions and 2 deletions
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5
src/ipa/rpi/controller/rpi/agc.cpp
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@ -311,15 +311,16 @@ void Agc::process(StatisticsPtr &stats, Metadata *imageMetadata)
* exist, and call process(). We must make the agc.status metadata record correctly
* which channel this is.
*/
StatisticsPtr *statsPtr = &stats;
if (channelData.statistics && channelData.deviceStatus) {
deviceStatus = *channelData.deviceStatus;
stats = channelData.statistics;
statsPtr = &channelData.statistics;
} else {
/* Can also happen when new channels start. */
LOG(RPiAgc, Debug) << "process: channel " << channelIndex << " not seen yet";
}
channelData.channel.process(stats, deviceStatus, imageMetadata, channelTotalExposures_);
channelData.channel.process(*statsPtr, deviceStatus, imageMetadata, channelTotalExposures_);
auto dur = setCurrentChannelIndexGetExposure(imageMetadata, "process: no AGC status found",
channelIndex);
if (dur)