add Opus dOps box parsing

gpac · Mar 18, 2022 · 837f166 · 837f166
1 parent fd0ca94
commit 837f166
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/src/parsing/dOps.js b/src/parsing/dOps.js
@@ -0,0 +1,17 @@
+BoxParser.createBoxCtor("dOps", function(stream) {
+	this.Version = stream.readUint8();
+	this.OutputChannelCount = stream.readUint8();
+	this.PreSkip = stream.readUint16();
+	this.InputSampleRate = stream.readUint32();
+	this.OutputGain = stream.readInt16();
+	this.ChannelMappingFamily = stream.readUint8();
+	if (this.ChannelMappingFamily !== 0) {
+		this.StreamCount = stream.readUint8();
+		this.CoupledCount = stream.readUint8();
+		this.ChannelMapping = [];
+		for (var i = 0; i < this.OutputChannelCount; i++) {
+			this.ChannelMapping[i] = stream.readUint8();
+		}
+	}
+});
+