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Add iOS Live Photo support and another format for guess_extractor #224

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Add iOS Live Photo support and another format for guess_extractor #224

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3944b11
Add iOS Live Photo support
BobTheSoftwareDeveloper Jul 16, 2023
33a3756
Add another format for photo guess_extractor
BobTheSoftwareDeveloper Jul 16, 2023
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2 changes: 2 additions & 0 deletions bin/gpth.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ import 'package:gpth/media.dart';
import 'package:gpth/moving.dart';
import 'package:gpth/utils.dart';
import 'package:path/path.dart' as p;
import 'package:gpth/date_extractors/heic_video_extractor.dart';

const helpText = """GooglePhotosTakeoutHelper v$version - The Dart successor

Expand Down Expand Up @@ -125,6 +126,7 @@ void main(List<String> arguments) async {
jsonExtractor,
exifExtractor,
if (args['guess-from-name']) guessExtractor,
heicVideoExtractor,
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Should this extractor perhaps come before the guessExtractor? If it exits quickly when conditions are not met, it should be safe.

// this is potentially *dangerous* - see:
// https://github.com/TheLastGimbus/GooglePhotosTakeoutHelper/issues/175
(f) => jsonExtractor(f, tryhard: true),
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6 changes: 6 additions & 0 deletions lib/date_extractors/guess_extractor.dart
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Expand Up @@ -43,6 +43,12 @@ final _commonDatetimePatterns = [
r'(?<date>(20|19|18)\d{2}_(01|02|03|04|05|06|07|08|09|10|11|12)_[0-3]\d_\d{2}_\d{2}_\d{2})'),
'YYYY_MM_DD_hh_mm_ss',
],
// example: 20190620_184109.jpg
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I found this format of photos when going through my old photos 20190620_184109.jpg, it seems to be used by older cameras.

[
RegExp(
r'(20|19|18)\d{2}(01|02|03|04|05|06|07|08|09|10|11|12)[0-3]\d_\d{6}'),
'YYYYMMDD_hhmmss'
]
];

/// Guesses DateTime from [file]s name
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44 changes: 44 additions & 0 deletions lib/date_extractors/heic_video_extractor.dart
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@@ -0,0 +1,44 @@
import 'dart:io';
import 'package:gpth/date_extractors/json_extractor.dart';
import "package:path/path.dart" as p;

/// Finds corresponding json file with info and gets 'photoTakenTime' from it
Future<DateTime?> heicVideoExtractor(File file, {bool tryhard = false}) async {
final fileNameWithoutExtension = p.basenameWithoutExtension(file.path);

if (fileNameWithoutExtension.startsWith("IMG") &&
p.extension(file.path).toLowerCase() == ".mp4") {
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Photo from iPhone with Live Photo enabled when uploading to Google Photos will create three files:

  • IMG_1845.HEIC
  • IMG_1845.MP4
  • IMG_1845.HEIC.json

The .MP4 file always comes in a pair with the .HEIC file when the live photo is enabled, however, there is no JSON file for the video. We can also use the JSON file for the image to set the date for the video. This will ensure that the image and the video are stored in the same directory.

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I noticed that it doesn't always start with IMG, for example, one of mine is like this:

97E2514D-F5BB-4314-B099-9A5FAE5EEA22.JPG
97E2514D-F5BB-4314-B099-9A5FAE5EEA22.JPG.json
97E2514D-F5BB-4314-B099-9A5FAE5EEA22.MP4

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I too see other files. Perhaps instead try to probe whether the img file exists next to it by doing an exists check on the "possibleFileExtensions".

final String parentPath = file.parent.path;
// Is a valid iOS Live Photo video
return tryGetDateTimeFromPossibleFileExtensions(
parentPath, fileNameWithoutExtension);
}

return null;
}

Future<DateTime?> tryGetDateTimeFromPossibleFileExtensions(
String parentPath, String fileNameWithoutExtension,
{bool tryhard = false}) async {
final possibleFileExtensions = <String>[
"HEIC",
"heic",
"JPG",
"jpg",
"JPEG",
"jpeg"
];
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I have come across a few situations when the original image in the live photo pair is saved as a .jpg or .jpeg, they seem to use both upper and lower case. I suspect this is either because the HEIC format is disabled or the photo with the live photo feature was sent over iMessage which converted the image into a .jpeg format.

Sample directory of the files:

  • IMG_3984.jpeg
  • IMG_3984.MP4
  • IMG_3984.jpeg.json

and...

  • IMG_7334.JPG
  • IMG_7334.MP4
  • IMG_7334.JPG.json


for (final fileExtension in possibleFileExtensions) {
final String possiblePhotoPath =
p.join(parentPath, "$fileNameWithoutExtension.$fileExtension");
final result =
await jsonExtractor(File(possiblePhotoPath), tryhard: tryhard);

if (result != null) {
return result;
}
}

return null;
}