webmmux: GStreamer Good Plugins 1.0 Plugins Reference Manual

Types and Values

struct

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstMatroskaMux
                    ╰── GstWebMMux

Implemented Interfaces

GstWebMMux implements GstTagSetter and GstTocSetter.

Description

webmmux muxes VP8 video and Vorbis audio streams into a WebM file.

Example launch line

gst-launch-1.0 webmmux name=mux ! filesink location=newfile.webm         \
  uridecodebin uri=file:///path/to/somefile.ogv name=demux                \
  demux. ! videoconvert ! vp8enc ! queue ! mux.video_0    \
  demux. ! progressreport ! audioconvert ! audiorate ! vorbisenc ! queue ! mux.audio_0

This pipeline re-encodes a video file of any format into a WebM file.

1
2
3

gst-launch-1.0 webmmux name=mux ! filesink location=test.webm            \
  videotestsrc num-buffers=250 ! video/x-raw,framerate=25/1 ! videoconvert ! vp8enc ! queue ! mux.video_0 \
  audiotestsrc samplesperbuffer=44100 num-buffers=10 ! audio/x-raw,rate=44100 ! vorbisenc ! queue ! mux.audio_0

This pipeline muxes a test video and a sine wave into a WebM file.

Synopsis

Element Information

plugin	matroska
author	GStreamer maintainers <gstreamer-devel@lists.freedesktop.org>
class	Codec/Muxer

Element Pads

name	audio_%u
direction	sink
presence	request
details	audio/x-vorbis, channels=(int)[ 1, 2147483647 ], rate=(int)[ 1, 2147483647 ]
	audio/x-opus, channels=(int)[ 1, 2147483647 ], rate=(int)[ 1, 2147483647 ]

name	subtitle_%u
direction	sink
presence	request
details	subtitle/x-kate
	text/x-raw, format=(string)utf8
	application/x-ssa
	application/x-ass
	application/x-usf
	subpicture/x-dvd
	application/x-subtitle-unknown

name	video_%u
direction	sink
presence	request
details	video/x-vp8, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
	video/x-vp9, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
	video/x-av1, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

name	src
direction	source
presence	always
details	video/webm
	audio/webm

Functions

Types and Values

struct GstWebMMux

struct GstWebMMux;