Deploying to gh-pages from @ 7c43087 🚀

gpac · May 11, 2024 · ac02f68 · ac02f68
1 parent 830e8a7
commit ac02f68
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Showing 5 changed files with 50 additions and 4 deletions.
diff --git a/dist/mp4box.all.js b/dist/mp4box.all.js
@@ -3256,6 +3256,29 @@ BoxParser.createEntityToGroupCtor("wbbr");
 
 // Alternative entity (ISO/IEC 23008-12:2022 AMD1 Section 6.8.10)
 BoxParser.createEntityToGroupCtor("prgr");
+
+// Image Pyramid entity group (ISO/IEC 23008-12:20xx Section 6.8.11)
+BoxParser.createEntityToGroupCtor("pymd", function(stream) {
+    this.group_id = stream.readUint32();
+    this.num_entities_in_group = stream.readUint32();
+    this.entity_ids = [];
+    for (var i = 0; i < this.num_entities_in_group; i++) {
+        var entity_id = stream.readUint32();
+        this.entity_ids.push(entity_id);
+    }
+
+    this.tile_size_x = stream.readUint16();
+    this.tile_size_y = stream.readUint16();
+    this.layer_binning = [];
+    this.tiles_in_layer_column_minus1 = [];
+    this.tiles_in_layer_row_minus1 = [];
+    for (i = 0; i < this.num_entities_in_group; i++) {
+        this.layer_binning[i] = stream.readUint16();
+        this.tiles_in_layer_row_minus1[i] = stream.readUint16();
+        this.tiles_in_layer_column_minus1[i] = stream.readUint16();
+    }
+});
+
 // file:src/parsing/esds.js
 BoxParser.createFullBoxCtor("esds", function(stream) {
 	var esd_data = stream.readUint8Array(this.size-this.hdr_size);

diff --git a/dist/mp4box.all.min.js b/dist/mp4box.all.min.js
diff --git a/dist/mp4box.all.min.js.map b/dist/mp4box.all.min.js.map
diff --git a/dist/mp4box.simple.min.js b/dist/mp4box.simple.min.js
diff --git a/src/parsing/EntityToGroup.js b/src/parsing/EntityToGroup.js
@@ -67,3 +67,26 @@ BoxParser.createEntityToGroupCtor("wbbr");
 
 // Alternative entity (ISO/IEC 23008-12:2022 AMD1 Section 6.8.10)
 BoxParser.createEntityToGroupCtor("prgr");
+
+// Image Pyramid entity group (ISO/IEC 23008-12:20xx Section 6.8.11)
+BoxParser.createEntityToGroupCtor("pymd", function(stream) {
+    this.group_id = stream.readUint32();
+    this.num_entities_in_group = stream.readUint32();
+    this.entity_ids = [];
+    for (var i = 0; i < this.num_entities_in_group; i++) {
+        var entity_id = stream.readUint32();
+        this.entity_ids.push(entity_id);
+    }
+
+    this.tile_size_x = stream.readUint16();
+    this.tile_size_y = stream.readUint16();
+    this.layer_binning = [];
+    this.tiles_in_layer_column_minus1 = [];
+    this.tiles_in_layer_row_minus1 = [];
+    for (i = 0; i < this.num_entities_in_group; i++) {
+        this.layer_binning[i] = stream.readUint16();
+        this.tiles_in_layer_row_minus1[i] = stream.readUint16();
+        this.tiles_in_layer_column_minus1[i] = stream.readUint16();
+    }
+});
+