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debug: metadata-extractor directory summary

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Thibault Deckers 2020-11-14 23:46:58 +09:00
parent bb05921713
commit 03a83f46fb
3 changed files with 63 additions and 1 deletions
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44
android/app/src/main/kotlin/deckers/thibault/aves/channel/calls/MetadataHandler.kt
View file

@ -74,6 +74,7 @@ class MetadataHandler(private val context: Context) : MethodCallHandler {
"getExifInterfaceMetadata" -> GlobalScope.launch { getExifInterfaceMetadata(call, Coresult(result)) }
"getMediaMetadataRetrieverMetadata" -> GlobalScope.launch { getMediaMetadataRetrieverMetadata(call, Coresult(result)) }
"getBitmapFactoryInfo" -> GlobalScope.launch { getBitmapFactoryInfo(call, Coresult(result)) }
"getMetadataExtractorSummary" -> GlobalScope.launch { getMetadataExtractorSummary(call, Coresult(result)) }
"getEmbeddedPictures" -> GlobalScope.launch { getEmbeddedPictures(call, Coresult(result)) }
"getExifThumbnails" -> GlobalScope.launch { getExifThumbnails(call, Coresult(result)) }
"getXmpThumbnails" -> GlobalScope.launch { getXmpThumbnails(call, Coresult(result)) }
@ -544,6 +545,49 @@ class MetadataHandler(private val context: Context) : MethodCallHandler {
result.success(metadataMap)
}
private fun getMetadataExtractorSummary(call: MethodCall, result: MethodChannel.Result) {
val uri = call.argument<String>("uri")?.let { Uri.parse(it) }
if (uri == null) {
result.error("getMetadataExtractorSummary-args", "failed because of missing arguments", null)
return
}
val metadataMap = HashMap<String, String>()
try {
StorageUtils.openInputStream(context, uri)?.use { input ->
val metadata = ImageMetadataReader.readMetadata(input)
metadataMap["mimeType"] = metadata.getDirectoriesOfType(FileTypeDirectory::class.java).joinToString { dir ->
if (dir.containsTag(FileTypeDirectory.TAG_DETECTED_FILE_MIME_TYPE)) {
dir.getString(FileTypeDirectory.TAG_DETECTED_FILE_MIME_TYPE)
} else ""
}
metadataMap["typeName"] = metadata.getDirectoriesOfType(FileTypeDirectory::class.java).joinToString { dir ->
if (dir.containsTag(FileTypeDirectory.TAG_DETECTED_FILE_TYPE_NAME)) {
dir.getString(FileTypeDirectory.TAG_DETECTED_FILE_TYPE_NAME)
} else ""
}
for (dir in metadata.directories) {
val dirName = dir.name ?: ""
var index = 0
while (metadataMap.containsKey("$dirName ($index)")) index++
var value = "${dir.tagCount} tags"
dir.parent?.let { value += ", parent: ${it.name}" }
metadataMap["$dirName ($index)"] = value
}
}
} catch (e: Exception) {
Log.w(LOG_TAG, "failed to get metadata by metadata-extractor for uri=$uri", e)
} catch (e: NoClassDefFoundError) {
Log.w(LOG_TAG, "failed to get metadata by metadata-extractor for uri=$uri", e)
}
if (metadataMap.isNotEmpty()) {
result.success(metadataMap)
} else {
result.error("getMetadataExtractorSummary-failure", "failed to get metadata for uri=$uri", null)
}
}
private fun getEmbeddedPictures(call: MethodCall, result: MethodChannel.Result) {
val uri = call.argument<String>("uri")?.let { Uri.parse(it) }
if (uri == null) {

13
lib/services/metadata_service.dart
View file

@ -130,6 +130,19 @@ class MetadataService {
return {};
}
static Future<Map> getMetadataExtractorSummary(ImageEntry entry) async {
try {
// return map with the mime type and tag count for each directory found by `metadata-extractor`
final result = await platform.invokeMethod('getMetadataExtractorSummary', <String, dynamic>{
'uri': entry.uri,
}) as Map;
return result;
} on PlatformException catch (e) {
debugPrint('getMetadataExtractorSummary failed with code=${e.code}, exception=${e.message}, details=${e.details}');
}
return {};
}
static Future<List<Uint8List>> getEmbeddedPictures(String uri) async {
try {
final result = await platform.invokeMethod('getEmbeddedPictures', <String, dynamic>{

7
lib/widgets/fullscreen/debug/metadata.dart
View file

@ -18,7 +18,7 @@ class MetadataTab extends StatefulWidget {
}
class _MetadataTabState extends State<MetadataTab> {
Future<Map> _bitmapFactoryLoader, _contentResolverMetadataLoader, _exifInterfaceMetadataLoader, _mediaMetadataLoader;
Future<Map> _bitmapFactoryLoader, _contentResolverMetadataLoader, _exifInterfaceMetadataLoader, _mediaMetadataLoader, _metadataExtractorLoader;
// MediaStore timestamp keys
static const secondTimestampKeys = ['date_added', 'date_modified', 'date_expires', 'isPlayed'];
@ -37,6 +37,7 @@ class _MetadataTabState extends State<MetadataTab> {
_contentResolverMetadataLoader = MetadataService.getContentResolverMetadata(entry);
_exifInterfaceMetadataLoader = MetadataService.getExifInterfaceMetadata(entry);
_mediaMetadataLoader = MetadataService.getMediaMetadataRetrieverMetadata(entry);
_metadataExtractorLoader = MetadataService.getMetadataExtractorSummary(entry);
setState(() {});
}
@ -94,6 +95,10 @@ class _MetadataTabState extends State<MetadataTab> {
future: _mediaMetadataLoader,
builder: (context, snapshot) => builder(context, snapshot, 'Media Metadata Retriever'),
),
FutureBuilder<Map>(
future: _metadataExtractorLoader,
builder: (context, snapshot) => builder(context, snapshot, 'Metadata Extractor'),
),
],
);
}