HEIC Hex: Decoded iinf box

StefanOltmann · Feb 11, 2024 · bff5be8 · bff5be8
1 parent e9b5b75
commit bff5be8
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Showing 2 changed files with 189 additions and 5 deletions.
diff --git a/app/src/commonMain/kotlin/HtmlGenerator.kt b/app/src/commonMain/kotlin/HtmlGenerator.kt
@@ -19,11 +19,14 @@
 
 import com.ashampoo.kim.common.MetadataType
 import com.ashampoo.kim.common.slice
+import com.ashampoo.kim.common.toFourCCTypeString
 import com.ashampoo.kim.common.toHex
 import com.ashampoo.kim.common.toUInt8
 import com.ashampoo.kim.format.ImageMetadata
 import com.ashampoo.kim.format.bmff.BoxReader
 import com.ashampoo.kim.format.bmff.BoxType
+import com.ashampoo.kim.format.bmff.box.ItemInfoEntryBox
+import com.ashampoo.kim.format.bmff.box.ItemInformationBox
 import com.ashampoo.kim.format.bmff.box.ItemLocationBox
 import com.ashampoo.kim.format.bmff.box.MetaBox
 import com.ashampoo.kim.format.jpeg.JpegConstants
@@ -771,6 +774,83 @@ private fun createBaseMediaFileFormatSlices(bytes: ByteArray): List<LabeledSlice
  )
  )
 
+ } else if (subBox is ItemInformationBox) {
+
+ slices.add(
+ LabeledSlice(
+ range = subBox.offset.toInt() until subBox.offset.toInt() + 8,
+ label = "Box" + SPACE + "iinf" + SPACE + "header",
+ separatorLineType = SeparatorLineType.BOLD,
+ snipAfterLineCount = 3
+ )
+ )
+
+ slices.add(
+ LabeledSlice(
+ range = subBox.offset.toInt() + 8 until subBox.offset.toInt() + 9,
+ label = "Box" + SPACE + "version" + SPACE + "=" + SPACE + subBox.version,
+ separatorLineType = SeparatorLineType.THIN,
+ snipAfterLineCount = 1
+ )
+ )
+
+ slices.add(
+ LabeledSlice(
+ range = subBox.offset.toInt() + 9 until subBox.offset.toInt() + 12,
+ label = "Box" + SPACE + "flags",
+ separatorLineType = SeparatorLineType.THIN,
+ snipAfterLineCount = 1
+ )
+ )
+
+ if (subBox.version == 0) {
+
+ slices.add(
+ LabeledSlice(
+ range = subBox.offset.toInt() + 12 until subBox.offset.toInt() + 14,
+ label = "Entry count = ${subBox.entryCount}".escapeHtmlSpecialChars(),
+ separatorLineType = SeparatorLineType.THIN,
+ snipAfterLineCount = 1
+ )
+ )
+ } else {
+
+ slices.add(
+ LabeledSlice(
+ range = subBox.offset.toInt() + 12 until subBox.offset.toInt() + 16,
+ label = "Entry count = ${subBox.entryCount}".escapeHtmlSpecialChars(),
+ separatorLineType = SeparatorLineType.THIN,
+ snipAfterLineCount = 1
+ )
+ )
+ }
+
+ for (infeBox in subBox.boxes) {
+
+ infeBox as ItemInfoEntryBox
+
+ // FIXME Offset bug in Kim v0.14?
+ val infeBoxOffset = infeBox.offset.toInt() + 2
+
+ val subBoxRange =
+ infeBoxOffset until infeBoxOffset + infeBox.actualLength.toInt()
+
+ val itemTypeFourCC = infeBox.itemType.toFourCCTypeString()
+
+ val label =
+ "Item #${infeBox.itemId} @ ${infeBox.itemProtectionIndex} = $itemTypeFourCC".
+ escapeHtmlSpecialChars()
+
+ slices.add(
+ LabeledSlice(
+ range = subBoxRange,
+ label = label,
+ separatorLineType = SeparatorLineType.NONE,
+ snipAfterLineCount = 3
+ )
+ )
+ }
+
  } else {
 
  val separatorLineType = if (subBox == lastSubBox)