From b8302cd44ae235d18d6cf645ac1ed928a8f68c96 Mon Sep 17 00:00:00 2001 From: Hirokazu Honda Date: Thu, 10 Jun 2021 17:25:34 +0900 Subject: libcamera: controls: Add sensor test pattern mode The control is used to report available sensor test pattern modes and also specify the mode to sensor. Signed-off-by: Hirokazu Honda Reviewed-by: Jacopo Mondi Reviewed-by: Laurent Pinchart Signed-off-by: Jacopo Mondi --- src/libcamera/control_ids.yaml | 58 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) (limited to 'src/libcamera/control_ids.yaml') diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids.yaml index f62ade48..d92f29f5 100644 --- a/src/libcamera/control_ids.yaml +++ b/src/libcamera/control_ids.yaml @@ -622,4 +622,62 @@ controls: detection, additional format conversions etc) count as an additional pipeline stage. + - TestPatternMode: + type: int32_t + draft: true + description: | + Control to select the test pattern mode. Currently identical to + ANDROID_SENSOR_TEST_PATTERN_MODE. + enum: + - name: TestPatternModeOff + value: 0 + description: | + No test pattern mode is used. The camera device returns frames from + the image sensor. + - name: TestPatternModeSolidColor + value: 1 + description: | + Each pixel in [R, G_even, G_odd, B] is replaced by its respective + color channel provided in test pattern data. + \todo Add control for test pattern data. + - name: TestPatternModeColorBars + value: 2 + description: | + All pixel data is replaced with an 8-bar color pattern. The vertical + bars (left-to-right) are as follows; white, yellow, cyan, green, + magenta, red, blue and black. Each bar should take up 1/8 of the + sensor pixel array width. When this is not possible, the bar size + should be rounded down to the nearest integer and the pattern can + repeat on the right side. Each bar's height must always take up the + full sensor pixel array height. + - name: TestPatternModeColorBarsFadeToGray + value: 3 + description: | + The test pattern is similar to TestPatternModeColorBars, + except that each bar should start at its specified color at the top + and fade to gray at the bottom. Furthermore each bar is further + subdevided into a left and right half. The left half should have a + smooth gradient, and the right half should have a quantized + gradient. In particular, the right half's should consist of blocks + of the same color for 1/16th active sensor pixel array width. The + least significant bits in the quantized gradient should be copied + from the most significant bits of the smooth gradient. The height of + each bar should always be a multiple of 128. When this is not the + case, the pattern should repeat at the bottom of the image. + - name: TestPatternModePn9 + value: 4 + description: | + All pixel data is replaced by a pseudo-random sequence generated + from a PN9 512-bit sequence (typically implemented in hardware with + a linear feedback shift register). The generator should be reset at + the beginning of each frame, and thus each subsequent raw frame with + this test pattern should be exactly the same as the last. + - name: TestPatternModeCustom1 + value: 256 + description: | + The first custom test pattern. All custom patterns that are + available only on this camera device are at least this numeric + value. All of the custom test patterns will be static (that is the + raw image must not vary from frame to frame). + ... -- cgit v1.2.1