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adding metadata validity check

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This commit is contained in:
Patrik J. Braun 2019-02-02 22:22:51 -05:00
parent 89f327f051
commit 33cbd93fb5
3 changed files with 51 additions and 15 deletions
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6
backend/model/sql/enitites/PhotoEntity.ts
View File

@ -4,7 +4,7 @@ import {MediaEntity, MediaMetadataEntity} from './MediaEntity';
export class CameraMetadataEntity implements CameraMetadata {
@Column('int', {nullable: true})
@Column('int', {nullable: true, unsigned: true})
ISO: number;
@Column('text', {nullable: true})
@ -19,7 +19,7 @@ export class CameraMetadataEntity implements CameraMetadata {
@Column('float', {nullable: true})
exposure: number;
@Column('int', {nullable: true, unsigned: true})
@Column('float', {nullable: true})
focalLength: number;
@Column('text', {nullable: true})
@ -33,7 +33,7 @@ export class GPSMetadataEntity implements GPSMetadata {
latitude: number;
@Column('float', {nullable: true})
longitude: number;
@Column('float', {nullable: true})
@Column('int', {nullable: true})
altitude: number;
}

45
backend/model/threading/MetadataLoader.ts
View File

@ -10,6 +10,7 @@ import {ExifParserFactory, OrientationTypes} from 'ts-exif-parser';
import {IptcParser} from 'ts-node-iptc';
import {FFmpegFactory} from '../FFmpegFactory';
import {FfprobeData} from 'fluent-ffmpeg';
import {Utils} from '../../../common/Utils';
const LOG_TAG = '[MetadataLoader]';
@ -49,8 +50,13 @@ export class MetadataLoader {
metadata.size.width = data.streams[i].width;
metadata.size.height = data.streams[i].height;
metadata.duration = Math.floor(data.streams[i].duration * 1000);
metadata.bitRate = parseInt(data.streams[i].bit_rate, 10) || null;
if (Utils.isInt32(Math.floor(data.streams[i].duration * 1000))) {
metadata.duration = Math.floor(data.streams[i].duration * 1000);
}
if (Utils.isInt32(parseInt(data.streams[i].bit_rate, 10))) {
metadata.duration = parseInt(data.streams[i].bit_rate, 10) || null;
}
metadata.creationDate = Date.parse(data.streams[i].tags.creation_time);
break;
}
@ -96,22 +102,36 @@ export class MetadataLoader {
exif.tags.ExposureTime || exif.tags.FocalLength ||
exif.tags.LensModel) {
metadata.cameraData = {
ISO: exif.tags.ISO,
model: exif.tags.Model,
make: exif.tags.Make,
fStop: exif.tags.FNumber,
exposure: exif.tags.ExposureTime,
focalLength: exif.tags.FocalLength,
lens: exif.tags.LensModel,
lens: exif.tags.LensModel
};
if (Utils.isUInt32(exif.tags.ISO)) {
metadata.cameraData.ISO = exif.tags.ISO;
}
if (Utils.isFloat32(exif.tags.ISO)) {
metadata.cameraData.focalLength = exif.tags.FocalLength;
}
if (Utils.isFloat32(exif.tags.ExposureTime)) {
metadata.cameraData.exposure = exif.tags.ExposureTime;
}
if (Utils.isFloat32(exif.tags.FNumber)) {
metadata.cameraData.fStop = exif.tags.FNumber;
}
}
if (!isNaN(exif.tags.GPSLatitude) || exif.tags.GPSLongitude || exif.tags.GPSAltitude) {
metadata.positionData = metadata.positionData || {};
metadata.positionData.GPSData = {
latitude: exif.tags.GPSLatitude,
longitude: exif.tags.GPSLongitude,
altitude: exif.tags.GPSAltitude
};
metadata.positionData.GPSData = {};
if (Utils.isFloat32(exif.tags.GPSLongitude)) {
metadata.positionData.GPSData.longitude = exif.tags.GPSLongitude;
}
if (Utils.isFloat32(exif.tags.GPSLatitude)) {
metadata.positionData.GPSData.latitude = exif.tags.GPSLatitude;
}
if (Utils.isInt32(exif.tags.GPSAltitude)) {
metadata.positionData.GPSData.altitude = exif.tags.GPSAltitude;
}
}
if (exif.tags.CreateDate || exif.tags.DateTimeOriginal || exif.tags.ModifyDate) {
@ -217,4 +237,5 @@ export class MetadataLoader {
}
);
}
}

15
common/Utils.ts
View File

@ -179,4 +179,19 @@ export class Utils {
return curr;
}
public static isUInt32(value: number, max: number = 4294967295) {
return !isNaN(value) && value >= 0 && value <= max;
}
public static isInt32(value: number) {
return !isNaN(value) && value >= -2147483648 && value <= 2147483647;
}
public static isFloat32(value: number) {
const E = Math.pow(10, 38);
const nE = Math.pow(10, -38);
return !isNaN(value) && ((value >= -3.402823466 * E && value <= -1.175494351 * nE) ||
(value <= 3.402823466 * E && value >= 1.175494351 * nE));
}
}