nuvdemux

nuvdemux

nuvdemux — Demultiplex a MythTV NuppleVideo .nuv file into audio and video

Synopsis

                    GstNuvDemux;

Description

Demuxes MythTVs NuppelVideo .nuv file into raw or compressed audio and/or video streams.

This element currently only supports pull-based scheduling.

Example launch line

gst-launch filesrc test.nuv ! nuvdemux name=demux  demux.audio_00 ! decodebin ! audioconvert ! audioresample ! autoaudiosink   demux.video_00 ! queue ! decodebin ! ffmpegcolorspace ! videoscale ! autovideosink

Play (parse and decode) an .nuv file and try to output it to an automatically detected soundcard and videosink. If the NUV file contains compressed audio or video data, this will only work if you have the right decoder elements/plugins installed.

Synopsis

Element Information

plugin	nuvdemux
author	Renato Araujo Oliveira Filho <renato.filho@indt.org.br>,Rosfran Borges <rosfran.borges@indt.org.br>
class	Codec/Demuxer

Element Pads

name	sink
direction	sink
presence	always
details	video/x-nuv

name	audio_src
direction	source
presence	sometimes
details	ANY

name	video_src
direction	source
presence	sometimes
details	ANY

Details

GstNuvDemux

typedef struct {
  GstElement     parent;

  guint         mode;
  GstAdapter    *adapter; 
  guint64       video_offset;
  guint64       audio_offset;

  /* pads */
  GstPad        *sinkpad;
  GstPad        *src_video_pad;  
  GstPad        *src_audio_pad;
  gboolean      first_video;
  gboolean      first_audio;

  /* NUV decoding state */
  GstNuvDemuxState state;
  guint64        offset;

  /* Mpeg ExtraData */
  guint64       mpeg_data_size;
  GstBuffer     *mpeg_buffer;
  
  nuv_header *h;
  nuv_extended_header *eh;
  nuv_frame_header *fh;
} GstNuvDemux;

See Also

mythtvsrc