实现 AppleHandler 和 SamsungHandler 类，处理特定于供应商的 HEIC 特性，添加查找嵌入视频的逻辑

2025-10-20 12:10:59 +13:00
parent 8ee1d7984a
commit b4d35521cf
13 changed files with 144 additions and 38 deletions
@@ -1,4 +1,3 @@
-# In heic_types.py
 import struct
 from base import Box  # <-- THIS IS THE KEY CHANGE

@@ -29,7 +28,7 @@ class ItemLocationBox(Box):
        current_pos = 8
        for _ in range(item_count):
            item_id = struct.unpack('>H', stream[current_pos : current_pos+2])[0]
-            current_pos += 4 # Skip item_id and construction_method
+            current_pos += 2 # Skip construction_method
            current_pos += 2 # Skip data_reference_index
            current_pos += base_offset_size
            extent_count = struct.unpack('>H', stream[current_pos : current_pos+2])[0]