railbird/react-native-vision-camera
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feat: Add format filter for iso (#2234)

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This commit is contained in:
Marc Rousavy
2023-12-12 11:16:08 +01:00
committed by GitHub
parent 99491846a9
commit 52f78a119b
1 changed files with 28 additions and 3 deletions
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31
package/src/devices/getCameraFormat.ts
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@@ -49,7 +49,7 @@ export interface FormatFilter {
* The target FPS you want to record video at.
* If the FPS requirements can not be met, the format closest to this value will be used.
*/
fps?: number
fps?: number | 'max'
/**
* The target video stabilization mode you want to use.
* If no format supports the target video stabilization mode, the best other matching format will be used.
@@ -68,6 +68,12 @@ export interface FormatFilter {
* Whether you want to find a format that supports Photo HDR.
*/
videoHdr?: boolean
/**
* The target ISO value for capturing photos.
* Higher ISO values tend to capture sharper photos, at the cost of reduced capture speed.
* Lower ISO values tend to capture photos quicker.
*/
iso?: number | 'max' | 'min'
}
type FilterWithPriority<T> = {
@@ -181,8 +187,27 @@ export function getCameraFormat(device: CameraDevice, filters: FormatFilter[]):
// Find closest max FPS
if (filter.fps != null) {
if (bestFormat.maxFps >= filter.fps.target) leftPoints += filter.fps.priority
if (format.maxFps >= filter.fps.target) rightPoints += filter.fps.priority
if (filter.fps.target === 'max') {
if (bestFormat.maxFps > format.maxFps) leftPoints += filter.fps.priority
if (format.maxFps > bestFormat.maxFps) rightPoints += filter.fps.priority
} else {
if (bestFormat.maxFps >= filter.fps.target) leftPoints += filter.fps.priority
if (format.maxFps >= filter.fps.target) rightPoints += filter.fps.priority
}
}
// Find closest ISO
if (filter.iso != null) {
if (filter.iso.target === 'max') {
if (bestFormat.maxISO > format.maxISO) leftPoints += filter.iso.priority
if (format.maxISO > bestFormat.maxISO) rightPoints += filter.iso.priority
} else if (filter.iso.target === 'min') {
if (bestFormat.minISO < format.minISO) leftPoints += filter.iso.priority
if (format.minISO < bestFormat.minISO) rightPoints += filter.iso.priority
} else {
if (filter.iso.target >= bestFormat.minISO && filter.iso.target <= bestFormat.maxISO) leftPoints += filter.iso.priority
if (filter.iso.target >= format.minISO && filter.iso.target <= format.maxISO) rightPoints += filter.iso.priority
}
}
// Find video stabilization mode