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libcamera: ipu3: Use std::max() instead of expandTo() to get the max resolution

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Using Size::expandTo() to find the max resolution might generate a non-existent
resolution. For example, when application request streams for 1920x1080 and
1600x1200, the max resolution will be wrongly 1920x1200 and fails the
configuration.

Bug: https://bugs.libcamera.org/show_bug.cgi?id=139
Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Han-Lin Chen via libcamera-devel 2022-08-12 17:01:03 +08:00 • committed by Jacopo Mondi
parent 45c198da63
commit ba72e4202f
1 changed files with 12 additions and 10 deletions
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14
src/libcamera/pipeline/ipu3/ipu3.cpp
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@ -243,6 +243,7 @@ CameraConfiguration::Status IPU3CameraConfiguration::validate()
*/
unsigned int rawCount = 0;
unsigned int yuvCount = 0;
Size rawRequirement;
Size maxYuvSize;
Size rawSize;
@ -251,10 +252,11 @@ CameraConfiguration::Status IPU3CameraConfiguration::validate()
if (info.colourEncoding == PixelFormatInfo::ColourEncodingRAW) {
rawCount++;
rawSize.expandTo(cfg.size);
rawSize = std::max(rawSize, cfg.size);
} else {
yuvCount++;
maxYuvSize.expandTo(cfg.size);
maxYuvSize = std::max(maxYuvSize, cfg.size);
rawRequirement.expandTo(cfg.size);
}
}
@ -283,13 +285,13 @@ CameraConfiguration::Status IPU3CameraConfiguration::validate()
* The output YUV streams will be limited in size to the maximum frame
* size requested for the RAW stream, if present.
*
* If no raw stream is requested generate a size as large as the maximum
* requested YUV size aligned to the ImgU constraints and bound by the
* sensor's maximum resolution. See
* If no raw stream is requested, generate a size from the largest YUV
* stream, aligned to the ImgU constraints and bound
* by the sensor's maximum resolution. See
* https://bugs.libcamera.org/show_bug.cgi?id=32
*/
if (rawSize.isNull())
rawSize = maxYuvSize.expandedTo({ ImgUDevice::kIFMaxCropWidth,
rawSize = rawRequirement.expandedTo({ ImgUDevice::kIFMaxCropWidth,
ImgUDevice::kIFMaxCropHeight })
.grownBy({ ImgUDevice::kOutputMarginWidth,
ImgUDevice::kOutputMarginHeight })