1 List of vlc plugins (475)
3 * a52: A/52 audio decoder plugin, using liba52
4 * aa: Ascii art video output
5 * access_alsa: Alsa access module
6 * access_concat: concatenated access
7 * access_imem: memory bitstream access module
8 * access_jack: JACK audio input module
9 * access_mms: MMS over TCP, UDP and HTTP access module
10 * access_mtp: MTP access module
11 * access_oss: OSS access module
12 * access_output_dummy: dummy access_output module
13 * access_output_file: File access_output module
14 * access_output_http: HTTP Network access module
15 * access_output_livehttp: Live HTTP stream output
16 * access_output_shout: Shoutcast access output
17 * access_output_udp: UDP Network access_output module
18 * access_qtsound: Quicktime Audio Capture
19 * access_realrtsp: Real RTSP access
20 * access_wasapi: WASAPI audio input
21 * accesstweaks: access control tweaking module (dev tool)
22 * adaptive: Unified adaptive streaming module (DASH/HLS)
23 * addonsfsstorage: Local storage extensions repository
24 * addonsvorepository: Videolan extensions repository
25 * adf: ADF stream_filter module
26 * adjust: Contrast/Hue/saturation/Brightness adjust module
27 * adpcm: ADPCM audio decoder
28 * adummy: dummy audio output
29 * aes3: aes3 decoder/packetizer
30 * afile: Audio output to write to a file
32 * alphamask: Alpha layer mask video filter
33 * alsa: audio output module using the ALSA API
34 * amem: audio memory output
35 * anaglyph: anaglyph 3d video filter
36 * android_audiotrack: audio output for Android, based on AudioTrack
37 * android_display: Android native window provider module
38 * android_logger: logger output to native Android logs (adb logcat)
39 * android_window: Android direct/undirect rendering video output
40 * antiflicker: anti-flicker video filter
41 * aom: AOM decoder (AV1)
42 * araw: Pseudo audio decoder for raw PCM
43 * archive: libarchive based access and stream filter and stream_extractor
44 * aribcam: ARIB STD-B25 decoder/virtual CAM
45 * aribsub: ARIB subtitles decoder
47 * attachment: Attachment access module
49 * audio_format: helper module for audio transcoding
50 * audiobargraph_a: audiobargraph audio plugin
51 * audiobargraph_v: audiobargraph video plugin
52 * audioscrobbler: AudioScrobbler/Last.fm submission plugin
53 * audiounit_ios: AudioUnit output plugin for iOS
54 * auhal: Audio output for Mac OS X based on the AUHAL API
55 * avahi: Zeroconf services discovery
56 * avcapture: AVFoundation based video capture module
57 * avcodec: libavcodec audio/video decoder
58 * avformat: libavformat demuxer
59 * avi: AVI file stream demuxer
60 * avio: Access and Stream output module using libavformat network
61 * ball: Augmented reality ball video filter module
62 * bandlimited_resampler: Bandlimited interpolation audio resampler
63 * blend: a picture filter that blends two pictures
64 * blendbench: a picture filter that test performance of blending routines
65 * bluescreen: Bluescreen (weather channel like) video filter
66 * bonjour: mDNS services discovery module based on Bonjour
67 * bpg: BPG image decoder using libbpg
68 * caca: color ASCII art video output using libcaca
69 * cache_block: block stream caching stream filter
70 * cache_read: byte stream caching stream filter
72 * canvas: Automatically resize and padd a video
73 * caopengllayer: CoreAnimation OpenGL video output
74 * cc: CC 608/708 subtitles decoder
75 * cdda: input module to read audio CDs
77 * chain: Video filtering using a chain of video filter modules
78 * chorus_flanger: Basic chorus/flanger/variable delay audio filter
79 * chroma_omx: OMX Development Layer chroma conversions
80 * chroma_yuv_neon: ARM NEON video chroma conversion
81 * ci_filters: CoreImage hardware-accelerated adjust/invert/posterize/sepia/sharpen filters
82 * clone: Clone video filter
83 * colorthres: Theshold color based on similarity to reference color Video filter
84 * compressor: Dynamic range compressor
85 * console_logger: Logger outputting in the terminal
86 * croppadd: Crop/Padd image filter
87 * crystalhd: crystalhd decoder
88 * cvdsub: CVD subtitles decoder
89 * cvpx: filter to copy from OS X accelerated surfaces to CPU
90 * d3d11_surface: Convert D3D11 GPU textures to YUV planes
91 * d3d11va: Direct3D11 hardware-accelerated decoding
92 * daala: a daala video decoder/packetizer using libdaala
93 * dbus: D-Bus control interface
94 * dbus_screensaver: preventing the computer from suspending
95 * dc1394: IIDC (DCAM) FireWire input module
96 * dca: DTS audio decoder plugin, using libdca
97 * dcp: Digital Cinema Package input
98 * ddummy: dummy decoder
99 * decklink: input module to read from a Blackmagic SDI card
100 * decklinkoutput: output module to write to Blackmagic SDI card
101 * decomp: Decompression module
102 * deinterlace: naive deinterlacing filter
103 * demux_cdg: Demuxer for CD-G files (Karaoke)
104 * demux_chromecast: Internal demux filter to report the playback time on the Chromecast
105 * demux_stl: EBU STL subtitles demuxer
106 * demuxdump: Pseudo-demuxer that dumps the stream
107 * diracsys: BBC Dirac demuxer
108 * direct3d11: video output module using the Direct3D11 API
109 * direct3d11_adjust: adjust filter for Direct3D11 video decoding
110 * direct3d11_deinterlace: deinterlacer for Direct3D11 video decoding
111 * direct3d9: video output module using the Direct3D9 API
112 * direct3d9_adjust: adjust filter for Direct3D9 video decoding
113 * direct3d9_deinterlace: deinterlacer for Direct3D9/DxVA video decoding
114 * directdraw: video output module using the DirectDraw API
115 * directsound: audio output module using the DirectSound API
116 * dmo: a DirectMediaObject decoder that uses DirectMedia to decode video (WMV3)
117 * dolby_surround_decoder: simple decoder for dolby surround encoded streams
118 * drawable: legacy LibVLC video window provider
119 * dshow: DirectShow access plugin for encoding cards under Windows
120 * dsm: SMB access module
121 * dtv: DVB support (superseds bda module for Windows)
122 * dummy: dummy interface
123 * dv1394: Digital Video (Firewire/IEEE1394/I-Link) access module
124 * dvb: Older DVB support module
125 * dvbsub: decoder module for subs in dvb streams
126 * dvdnav: access module for DVDs with libdvdnav
127 * dvdread: input module for accessing DVDs, uses libdvdread
128 * dxa9: Convert D3D9 GPU textures to YUV planes
129 * dxva2: DxVA2 hardware-accelerated decoding
130 * dynamicoverlay: subpicture filter using shared memory that can be written to by external applications
131 * edgedetection: edge detection video filter
132 * edummy: dummy encoder
133 * egl_android: Android EGL video output
134 * egl_win32: Windows EGL video output
135 * egl_wl: Unix/Wayland EGL video output
136 * egl_x11: Unix/x11 EGL video output
137 * equalizer: a equalizer audio filter
138 * erase: Logo erase video filter
139 * es: input module for MPEG ES decapsulation
140 * evas: EFL Evas video output with Tizen TBM Surface support
141 * export: playlist export module
142 * extract: Extract RGB components video filter
143 * faad: AAC decoder using libfaad2
144 * fb: video output module for the Linux framebuffer
145 * fdkaac: AAC encoder using the fdk-aac library
146 * file_keystore: store secrets on a file, may use a submodule to crypt secrets
147 * file_logger: file logger plugin
148 * filesystem: Filesystem access module
149 * fingerprinter: AcoustID audio fingerprinter using chromaprint
150 * flac: Flac decoder using libflac
151 * flacsys: FLAC demuxer
152 * flaschen: Flaschen-Taschen screen protocol video output
153 * float_mixer: Precise float audio mixer
154 * fluidsynth: Software MIDI synthetizer using libfluidsynth
155 * folder: folder meta data and art finder
156 * fps: convert picture rate
157 * freetype: Utility to put text on video using freetype2
158 * freeze: picture freezing video filter
159 * ftp: FTP Network access module
160 * g711: G.711 audio codec
161 * gain: Gain audio filter
162 * gaussianblur: gaussian blur video filter
163 * gestures: mouse gestures control plugin
164 * gl: OpenGL video output using the generic OpenGL provider
165 * gles2: OpenGL ES2 video output using the generic OpenGL provider
166 * glspectrum: 3D OpenGL spectrum visualization
167 * glwin32: a opengl provider using DirectX OpenGL
168 * glx: GLX extension for OpenGL
169 * gme: old console games music playback using Game Music Emu
170 * gnutls: GNU TLS encryption/decryption module
171 * goom: visualisation plugin based on goom
172 * gradfun: Gradfun video effects filter
173 * gradient: Gradient and edge detection video effects filter
174 * grain: Grain Video filter
175 * grey_yuv: grayscale to others conversion module
176 * gstdecode: GStreamer based decoder module.
177 * h26x: Raw H264 and HEVC demuxers
178 * hds: HTTP Dynamic Streaming, per Adobe's specs
179 * headphone_channel_mixer: headphone channel mixer with virtual spatialization effect
180 * hotkeys: hotkeys control module
181 * hqdn3d: High Quality denoising filter
182 * http: HTTP Network access module
183 * https: HTTP/TLS access module for HTTP 2.0 support
184 * i420_10_p010: I420 to NV12 in 10bits conversion, aka IA0L->P010
185 * i420_nv12: planar YUV to semi-planar YUV conversion functions
186 * i420_rgb: planar YUV to packed RGB conversion functions
187 * i420_rgb_mmx: MMX accelerated version of i420_rgb
188 * i420_rgb_sse2: sse2 accelerated version of i420_rgb
189 * i420_yuy2: planar 4:2:0 YUV to packed YUV conversion functions
190 * i420_yuy2_altivec: AltiVec accelerated version of i420_yuy2
191 * i420_yuy2_mmx: MMX accelerated version of i420_yuy2
192 * i420_yuy2_sse2: sse2 accelerated version of i420_yuy2
193 * i422_i420: 4:2:2 to 4:2:0 conversion functions
194 * i422_yuy2: planar 4:2:2 YUV to packed YUV conversion functions
195 * i422_yuy2_mmx: MMX accelerated version of i422_yuy2
196 * i422_yuy2_sse2: sse2 accelerated version of i422_yuy2
197 * idummy: dummy input
198 * image: Image file video output
199 * imem: memory input access module
200 * inflate: zlib decompression stream_filter module
201 * integer_mixer: Integer audio mixer
202 * invert: inverse video filter
203 * iomx: IPC/OpenMaxIL for Android
204 * jack: jack server audio output
205 * jpeg: JPEG image decoder
206 * kai: OS/2 audio output
207 * karaoke: simple karaoke audio filter
208 * kate: kate text bitstream decoder
209 * keychain: Keystore for iOS, Mac OS X and tvOS
210 * kva: OS/2 video output
211 * kwallet: store secrets via KDE Kwallet
212 * libass: Subtitle renderers using libass
213 * libbluray: Library to access Blu-Ray drives
214 * libmpeg2: Mpeg2 video decoder using libmpeg2
215 * linsys_hdsdi: Linsys HDSDI cards access module
216 * linsys_sdi: Linsys SDI cards access module
217 * lirc: Linux infrared control module
218 * live555: rtp demux based on liveMedia (live555.com)
219 * logger: file logger plugin
220 * logo: video filter to put a logo on the video
222 * lua: Lua scripting inteface
223 * macosx: Video output, and interface module for Mac OS X
224 * mad: MPEG-1 & 2 audio layer I,II,III audio decoder using MAD
225 * magnify: zoom video filter
226 * marq: Overlays a marquee on the video
227 * mediacodec: Android Jelly Bean MediaCodec decoder module
228 * mediadirs: Picture/Music/Video user directories as service discoveries
229 * memory_keystore: store secrets in memory
230 * mft: Media Foundation Transform audio/video decoder
231 * microdns: mDNS services discovery
232 * minimal_macosx: a minimal Mac OS X GUI, using the FrameWork
233 * mirror: mirror video filter
234 * mjpeg: a demuxer for multipart and concatenated JPEG data
235 * mkv: Matroska demuxer
236 * mmal_codec: mmal based video decoder
237 * mmal_deinterlace: mmal deinterlace filter
238 * mmal_vout: mmal based video renderer
239 * mmdevice: Windows Audio Session API audio output using MMDevice
241 * mono: stereo-to-mono downmix simple channel mixer
242 * mosaic: Module used to display a mosaic
243 * motion: Motion control interface
244 * motionblur: Motion blur filter
245 * motiondetect: Motion detection filter
246 * mp4: MP4 file input module
247 * mpc: Musepack decoder
248 * mpg123: MPEG-1 & 2 audio layer I, II, III + MPEG 2.5 decoder using mpg123
249 * mpgv: MPEG-I/II Video demuxer
250 * mtp: MTP interface module
253 * mux_dummy: dummy muxer
255 * mux_mpjpeg: a multipart MIME MJPEG muxer
257 * mux_ps: MPEG program stream muxer
258 * mux_ts: MPEG transport stream muxer
259 * mux_wav: a WAV muxer
260 * ncurses: interface module using the ncurses library
261 * netsync: synchronizes the clock of remote VLCs with a server for synchronous playback
262 * nfs: NFS access module using libnfs
263 * normvol: a audio filter for volume normalization
264 * noseek: seek prevention demuxing filter
265 * notify: notifications using libnotify
266 * nsc: decoder for Microsoft proprietary NSC descriptors
267 * nsspeechsynthesizer: Text to speech subtitles renderer
268 * nsv: NullSoft Video demuxer
269 * ntservice: run VLC as a NT service
271 * ogg: input module for OGG decapsulation
272 * oggspots: an OggSpots video decoder/packetizer
273 * oldmovie: oldmovie style video filter
274 * oldrc: old interface module using stdio
275 * omxil: OpenMAX IL audio/video decoder
276 * omxil_vout: OpenMAX IL video output
277 * opencv_example: OpenCV example (face identification)
278 * opencv_wrapper: OpenCV wrapper video filter
279 * opensles_android: OpenSL ES audio output for Android
280 * opus: a opus audio decoder/packetizer/encoder using the libopus library
281 * os2drive: service discovery for OS/2 drives
282 * oss: audio output module using the OSS /dev/dsp interface
283 * osx_notifications: announce currently playing stream to OS X/Growl
284 * packetizer_a52: A/52 basic parser/packetizer
285 * packetizer_avparser: libavcodec packetizer
286 * packetizer_copy: Simple copy packetizer
287 * packetizer_dirac: Dirac video packetizer
288 * packetizer_dts: DTS basic parser/packetizer
289 * packetizer_flac: FLAC audio packetizer
290 * packetizer_h264: H264 video packetizer
291 * packetizer_hevc: H.265/HEVC video packetizer
292 * packetizer_mlp: MLP/TrueHD audio packetizer
293 * packetizer_mpeg4audio: MPEG4 audio packetizer
294 * packetizer_mpeg4video: MPEG4 video packetizer
295 * packetizer_mpegaudio: MPEG audio packetizer
296 * packetizer_mpegvideo: MPEG video packetizer
297 * packetizer_vc1: VC-1 video packetizer
298 * panoramix: image wall panoramic video with edge blending filter
299 * param_eq: parametric equalizer
300 * playlist: playlist import module
301 * png: PNG images decoder
302 * podcast: podcast feed parser
303 * posterize: posterize video filter
304 * postproc: Video post processing filter
305 * prefetch: Stream prefetching stream filter
306 * projectm: visualisation using libprojectM
307 * ps: input module for MPEG PS decapsulation
308 * psychedelic: Psychedelic video filter
309 * pulse: PulseAudio audio output
310 * pulselist: PulseAudio audio input services discovery
311 * pulsesrc: PulseAudio audio input
312 * puzzle: puzzle video filter
314 * qsv: QuickSyncVideo Encoder for Intel hardware
315 * qt: interface module using the cross-platform Qt widget library
316 * rawaud: raw audio input module for vlc
317 * rawdv: Raw DV demuxer
318 * rawvid: raw video input module for vlc
319 * rawvideo: Pseudo audio-decoder for raw video
320 * rdp: Remote Desktop view only access
321 * real: partial Real audio/video demuxer
322 * record: record any stream instantly
323 * remap: audio channel remapping filter
324 * remoteosd: Remote-OSD over VNC
325 * ripple: Ripple video effect
326 * rotate: Video rotation filter
327 * rss: Display a RSS feed on the video output
328 * rtp: rtp demux module
329 * rtpvideo: encoder for raw video over RTP
330 * rv32: RV32 image format conversion module
331 * samplerate: Secret Rabbit Code (libsamplerate) audio resampler
332 * sap: Interface module to read SAP/SDP announcements
333 * sapi: Windows Text to Speech Synthetizer using the SAPI 5.1 API
334 * satip: SES Astra SAT>IP access module
335 * scale: Images rescaler
336 * scaletempo: Scale audio tempo in sync with playback rate
337 * scene: scene video filter
338 * schroedinger: Schroedinger video decoder
339 * screen: a input module that takes screenshots of the primary monitor
340 * scte18: SCTE-18/Emergency Alert Messaging for Cable decoder
341 * scte27: SCTE-27/Digicipher subtitles decoder
342 * sd_journal: logger output to SystemD journal
343 * sdl_image: SDL-based image decoder
344 * sdp: SDP fake access
345 * secret: store secrets via Gnome libsecret
346 * securetransport: TLS module for OS X and iOS
347 * sepia: Sepia video filter
348 * sftp: SFTP network access module
349 * sharpen: Sharpen video filter
350 * shine: MP3 encoder using Shine, a fixed point implementation
351 * shm: Shared memory framebuffer access module
352 * sid: Sidplay demuxer
353 * simple_channel_mixer: channel mixer
354 * skins2: Skinnable interface, new generation
355 * skiptags: APE & ID3 tags-skipping stream filter
356 * smb: SMB shares access module
357 * smf: Standard MIDI file demuxer
358 * sndio: OpenBSD sndio audio output
359 * soxr: SoX Resampler library audio filter
360 * spatialaudio: Ambisonics to binaural and array of speaker converter
361 * spatializer: A spatializer audio filter
362 * spdif: S/PDIF audio pass-through decoder
363 * speex: a speex audio decoder/packetizer using the libspeex library
364 * speex_resampler: audio resampler using the libspeexdsp library
365 * spudec: RLE DVD subtitles decoder
366 * stats: Stats encoder function
367 * stereo_widen: Enhances stereo effect
368 * stl: EBU STL decoder
369 * stream_out_autodel: monitor mux inputs and automatically add/delete streams
370 * stream_out_bridge: "exchange" streams between sout instances. To be used with VLM
371 * stream_out_chromaprint: Audio fingerprinter
372 * stream_out_chromecast: Chromecast streaming output module
373 * stream_out_cycle: cyclic stream output chain
374 * stream_out_delay: introduce delay in an ES when streaming
375 * stream_out_description: helper module for RTSP vod
376 * stream_out_display: displays a stream output chain
377 * stream_out_dummy: dummy stream out chain module
378 * stream_out_duplicate: duplicates a stream output chain
379 * stream_out_es: stream out module outputing ES
380 * stream_out_gather: stream out module gathering inputs for seemless transitions
381 * stream_out_mosaic_bridge: stream output module to make a mosaic. To be used with VLM
382 * stream_out_raop: Remote Audio Output Protocol (AirTunes) stream out
383 * stream_out_record: record stream output module
384 * stream_out_rtp: rtp stream output module
385 * stream_out_setid: Set the ID/Lang of an ES when streaming
386 * stream_out_smem: stream output module to a memory buffer
387 * stream_out_standard: standard stream output module
388 * stream_out_stats: Print timing values and md5 for sout blocks
389 * stream_out_transcode: audio & video transcoder
390 * subsdec: a codec to output textual subtitles
391 * subsdelay: subtitles delay filter
392 * substx3g: tx3g styled subtitles decoder
393 * subsusf: a demuxer for USF subtitles
394 * subtitle: a demuxer for subtitle files
395 * svcdsub: SVCD subtitles decoder
396 * svg: a svg renderer module
397 * svgdec: a svg decoder module
398 * swscale: Video scaling filter
399 * syslog: logger output to Syslog
400 * t140: T.140 text encoder
401 * taglib: Taglib tags parser and writer
402 * tcp: TCP Network access module
403 * tdummy: dummy text renderer
404 * telx: teletext subtitles decoder
405 * textst: HDMV text subtitles decoder
406 * theora: a theora video decoder/packetizer/encoder using the libtheora
407 * timecode: clock/timecode as a subtitle input
408 * tizen_audio: audio output for Tizen
409 * tospdif: Audio converter module to encapsulate A/52 and DTS into S/PDIF
410 * transform: filter for horizontal and vertical image flips and 90° rotations
411 * tremor: a vorbis audio decoder using the libvorbisidec (aka tremor) library
412 * trivial_channel_mixer: Simple channel mixer plugin
413 * ts: MPEG-TS demuxer
414 * tta: Lossless True Audio parser
415 * ttml: a TTML subtitles demuxer and decoder
416 * twolame: a mp1 mp2 audio encoder based on twolame
418 * udev: udev probing module
419 * udp: UDP Network access module
420 * ugly_resampler: Ugly audio resampler
421 * uleaddvaudio: codec for DV Audio from Ulead
422 * upnp: libupnp UPNP service discovery
423 * v4l2: Video 4 Linux 2 input module
424 * vaapi_dr: VAAPI hardware-accelerated decoding with vout backend (direct rendering)
425 * vaapi_drm: VAAPI hardware-accelerated decoding with drm backend
426 * vaapi_filters: VAAPI hardware-accelerated deinterlacing/chroma/adjust/sharpen/chroma filters
427 * vaapi_x11: VAAPI hardware-accelerated decoding with x11 backend
428 * vc1: VC-1 Video demuxer
429 * vcd: input module for accessing Video CDs
430 * vdpau_adjust: VDPAU color adjust video filter
431 * vdpau_avcodec: VDPAU hardware-accelerated decoding
432 * vdpau_chroma: VDPAU hardware surfaces conversion and rendering
433 * vdpau_deinterlace: VDPAU deinterlacing video filter
434 * vdpau_display: VDPAU video display
435 * vdpau_sharpen: VDPAU sharpen/blur video filter
436 * vdr: VDR access module
437 * vdummy: dummy video display
438 * vhs: vhs style video filter
439 * videotoolbox: Video Toolbox hardware decoder for OS X/iOS
440 * visual: visualisation system
441 * vmem: video memory output
442 * vnc: VNC/rfb view only access module
443 * vobsub: VobSUB subtitles demuxer
445 * vod_rtsp: RTSP VoD module
446 * volume_neon: audio volume optimized for ARM NEON
447 * vorbis: a vorbis audio decoder/packetizer using the libvorbis library
448 * vout_ios: iOS video provider using OpenGL ES 2
449 * vout_macosx: Mac OS X OpenGL provider
450 * vpx: WebM encoder and decoder (VP8/VP9)
451 * vsxu: audio visualization using Vovoid VSXu
452 * wall: image wall filter
453 * wasapi: Wasapi audio output module
455 * wave: Wave video effect
456 * waveout: simple audio output module for Windows
457 * wgl: WGL extension for OpenGL
458 * win_hotkeys: module to catch hotkeys when application doesn't have the focus
459 * win_msg: Windows Messages module
460 * windrive: Windows logical disc drives
461 * wingdi: WIN 32 / WIN CE GDI video output
462 * winstore: Windows Store App audio output
463 * wl_screenshooter: Wayland screen capture input
464 * wl_shell: Wayland shell surface window provider
465 * wl_shm: Wayland shared memory video output
466 * wma_fixed: wma decoder using integer decoder from Rockbox
467 * x262: MPEG-2 video encoder using x262
468 * x26410b: H264 10 bit video encoder using x264
469 * x264: H264 video encoder using x264
470 * x265: H265 video encoder using x265
472 * xcb_apps: List the application windows using XCB
473 * xcb_hotkeys: module to catch hotkeys when application doesn't have the focus
474 * xcb_screen: input module that takes screenshots of the primary monitor
475 * xcb_window: XCB window provider
476 * xcb_x11: a X11 video output using XCB
477 * xcb_xv: a XVideo video output using XCB
478 * xdg_screensaver: xdg-utils screensaver inhibition
479 * xdg_shell: XDG shell surface window provider using Wayland-client
480 * xml: LibXML xml parser
481 * xwd: X Window system raster image dump pseudo-decoder
482 * yuv: yuv video output
483 * yuv_rgb_neon: yuv->RGB chroma converter for NEON devices
484 * yuvp: YUVP to YUVA/RGBA chroma converter
485 * yuy2_i420: yuy2 to 4:2:0 conversions functions
486 * yuy2_i422: yuy2 to 4:2:2 conversions functions
487 * zvbi: Teletext decoder using libzbvi