python-ebml | Pure python Matroska / EBML parser

python-ebml is a Python library. python-ebml has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. However python-ebml build file is not available. You can download it from GitHub.

An EBML file is a sequence of EBML Elements, one after another. An Element consists of a two-part header encoding the Element ID and its data size, followed by that many bytes of data. The Matroska specification defines some number of EBML IDs, which can be found in a Matroska project file called specdata.xml. Each defined ID has a human-readable name, e.g. Segment. The semantics of the data depend on the Element type. EBML defines the following primitive Element types: + Master: the data is a sequence of child Elements. + Unsigned, Signed: the data is an integer in big-endian form. + String, Unicode: the data is a string encoded in ascii or utf-8. + Float: the data is a 4-byte or 8-byte floating point number. + Date: the data is an 8-byte signed integer representing the number of nanoseconds since the Matroska epoch. + Binary: the data is opaque. The Matroska EBML Element specifications are stored in a special-purpose dictionary called MATROSKA_TAGS which is used to create Elements of the appropriate class when reading them from a stream. This module defines the following classes for reading, storing, editing, and writing the data in a Matroska file. + Header: stores and manipulates the Element header. + Container: stores child Elements. This is subclassed by ElementMaster and File. As File is not an Element (it has no header) neither is Container. + File: facilitates reading and writing Elements from a stream. + Element: base class for all EBML Elements. Immediate subclasses of Element: + ElementMaster: Inherits both Element and Container. + ElementAtomic: Base class for all kinds of Elements that actually know how to interpret their data. Subclassed by ElementUnsigned, ElementUnicode, etc. + ElementVoid: Element that ignores its data on read and writes undefined values. + ElementUnsupported: An element this module does not support. It cannot be resized or written. This module provides the Parsed descriptor, which is a convenience class that allows Master Elements to read and write the data in child Elements using attributes. For instance, the ElementInfo class has the segment_uid attribute; if info is an instance of ElementInfo then info.segment_uid reads and writes the value of its child SegmentUID. If no such child exists, reading info.segment_uid returns a default value, and setting it creates the child. This is much easier to use than, say,. The ElementSegment class takes advantage of Parsed descriptors to give easy access to the segment metadata. Classes using this facility: ElementEBML, ElementSegment, ElementSeek, ElementInfo, ElementTrackEntry, ElementVideo, ElementAudio, ElementAttachedFile, etc.