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id3demux

id3demux

Properties

gboolean prefer-v1 Read / Write / Construct

Types and Values

struct GstID3Demux

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstTagDemux
                    ╰── GstID3Demux

Description

id3demux accepts data streams with either (or both) ID3v2 regions at the start, or ID3v1 at the end. The mime type of the data between the tag blocks is detected using typefind functions, and the appropriate output mime type set on outgoing buffers.

The element is only able to read ID3v1 tags from a seekable stream, because they are at the end of the stream. That is, when get_range mode is supported by the upstream elements. If get_range operation is available, id3demux makes it available downstream. This means that elements which require get_range mode, such as wavparse, can operate on files containing ID3 tag information.

This id3demux element replaced an older element with the same name which relied on libid3tag from the MAD project.

Example launch line

1
gst-launch-1.0 filesrc location=file.mp3 ! id3demux ! fakesink -t
This pipeline should read any available ID3 tag information and output it. The contents of the file inside the ID3 tag regions should be detected, and the appropriate mime type set on buffers produced from id3demux.

Synopsis

Element Information

plugin

id3demux

author

Jan Schmidt <thaytan@mad.scientist.com>

class

Codec/Demuxer/Metadata

Element Pads

name

sink

direction

sink

presence

always

details

application/x-id3

name

src

direction

source

presence

always

details

ANY

Functions

Types and Values

struct GstID3Demux

struct GstID3Demux;

Property Details

The “prefer-v1” property

  “prefer-v1”                gboolean

Prefer tags from ID3v1 tag at end of file when both ID3v1 and ID3v2 tags are present.

Flags: Read / Write / Construct

Default value: FALSE

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