1 文件格式(ASF)

ASF:Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format) is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media. ASF is part of the Windows Media framework.—from google define

Header Object

Required

Data Object

Required

Index Object

Optional

Object format

Object GUID

16 Bytes

Object Size

8 Bytes(the value is 24 + Object Data Size)

Object Data

(Object Size – 24)Bytes

1.1 Header Object(objects can apper in any order)

File Properties(Required)

Header Extention(Required)

Stream Properties(At least one stream properties object)

……

Stream Properties

Other header Object(optional)

1.2 Data Object

Data Packet 0

Data Packet 1

……

Data Packet N

Data Packet’s length is fixed. Data Packets are devided based on the time.

1.3 Index Object(skiped)

2 解碼原理及流程

3 附錄

總結

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