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authorJörg Frings-Fürst <debian@jff.email>2023-06-14 20:36:37 +0200
committerJörg Frings-Fürst <debian@jff.email>2023-06-14 20:36:37 +0200
commitbb80d3feebdc9acc52e3f4ad24084d8425f043a2 (patch)
tree2084a84c39f159c6aea254775dc0880d52579d45 /src/photos/AvifSupport.vala
parentb26ff0798252a1a8072dd2c7a67f6205de9fde11 (diff)
parent31804433d72460cbe0a39f9f8ea5e76058d84cda (diff)
Merge branch 'feature/upstream' into develop
Diffstat (limited to 'src/photos/AvifSupport.vala')
-rw-r--r--src/photos/AvifSupport.vala140
1 files changed, 140 insertions, 0 deletions
diff --git a/src/photos/AvifSupport.vala b/src/photos/AvifSupport.vala
new file mode 100644
index 0000000..842f0fc
--- /dev/null
+++ b/src/photos/AvifSupport.vala
@@ -0,0 +1,140 @@
+/* Copyright 2016 Software Freedom Conservancy Inc.
+ *
+ * This software is licensed under the GNU LGPL (version 2.1 or later).
+ * See the COPYING file in this distribution.
+ */
+
+class AvifFileFormatProperties : PhotoFileFormatProperties {
+ private static string[] KNOWN_EXTENSIONS = { "avif" };
+ private static string[] KNOWN_MIME_TYPES = { "image/avif" };
+
+ private static AvifFileFormatProperties instance = null;
+
+ public static void init() {
+ instance = new AvifFileFormatProperties();
+ }
+
+ public static AvifFileFormatProperties get_instance() {
+ return instance;
+ }
+
+ public override PhotoFileFormat get_file_format() {
+ return PhotoFileFormat.AVIF;
+ }
+
+ public override PhotoFileFormatFlags get_flags() {
+ return PhotoFileFormatFlags.NONE;
+ }
+
+ public override string get_user_visible_name() {
+ return _("AVIF");
+ }
+
+ public override string get_default_extension() {
+ return KNOWN_EXTENSIONS[0];
+ }
+
+ public override string[] get_known_extensions() {
+ return KNOWN_EXTENSIONS;
+ }
+
+ public override string get_default_mime_type() {
+ return KNOWN_MIME_TYPES[0];
+ }
+
+ public override string[] get_mime_types() {
+ return KNOWN_MIME_TYPES;
+ }
+}
+
+public class AvifSniffer : GdkSniffer {
+ public AvifSniffer(File file, PhotoFileSniffer.Options options) {
+ base (file, options);
+ }
+
+ public override DetectedPhotoInformation? sniff(out bool is_corrupted) throws Error {
+ // Rely on GdkSniffer to detect corruption
+ is_corrupted = false;
+
+ if (!is_supported_bmff_with_variants(file, {"avif", "avis"}))
+ return null;
+
+ DetectedPhotoInformation? detected = base.sniff(out is_corrupted);
+ if (detected == null)
+ return null;
+
+ return (detected.file_format == PhotoFileFormat.AVIF) ? detected : null;
+ }
+}
+
+public class AvifReader : GdkReader {
+ public AvifReader(string filepath) {
+ base (filepath, PhotoFileFormat.AVIF);
+ }
+}
+
+public class AvifWriter : PhotoFileWriter {
+ public AvifWriter(string filepath) {
+ base (filepath, PhotoFileFormat.AVIF);
+ }
+
+ public override void write(Gdk.Pixbuf pixbuf, Jpeg.Quality quality) throws Error {
+ pixbuf.save(get_filepath(), "avif", "quality", "90", null);
+ }
+}
+
+public class AvifMetadataWriter : PhotoFileMetadataWriter {
+ public AvifMetadataWriter(string filepath) {
+ base (filepath, PhotoFileFormat.AVIF);
+ }
+
+ public override void write_metadata(PhotoMetadata metadata) throws Error {
+ metadata.write_to_file(get_file());
+ }
+}
+
+public class AvifFileFormatDriver : PhotoFileFormatDriver {
+ private static AvifFileFormatDriver instance = null;
+
+ public static void init() {
+ instance = new AvifFileFormatDriver();
+ AvifFileFormatProperties.init();
+ }
+
+ public static AvifFileFormatDriver get_instance() {
+ return instance;
+ }
+
+ public override PhotoFileFormatProperties get_properties() {
+ return AvifFileFormatProperties.get_instance();
+ }
+
+ public override PhotoFileReader create_reader(string filepath) {
+ return new AvifReader(filepath);
+ }
+
+ public override bool can_write_image() {
+ return true;
+ }
+
+ public override bool can_write_metadata() {
+ return true;
+ }
+
+ public override PhotoFileWriter? create_writer(string filepath) {
+ return new AvifWriter(filepath);
+ }
+
+ public override PhotoFileMetadataWriter? create_metadata_writer(string filepath) {
+ return new AvifMetadataWriter(filepath);
+ }
+
+ public override PhotoFileSniffer create_sniffer(File file, PhotoFileSniffer.Options options) {
+ return new AvifSniffer(file, options);
+ }
+
+ public override PhotoMetadata create_metadata() {
+ return new PhotoMetadata();
+ }
+}
+