type video = [ | `A64_multi| `A64_multi5| `Aasc| `Agm| `Aic| `Alias_pix| `Amv| `Anm| `Ansi| `Apng| `Arbc| `Argo| `Asv1| `Asv2| `Aura| `Aura2| `Av1| `Avrn| `Avrp| `Avs| `Avs2| `Avs3| `Avui| `Ayuv| `Bethsoftvid| `Bfi| `Binkvideo| `Bitpacked
| `Bmp| `Bmv_video| `Brender_pix| `C93| `Cavs| `Cdgraphics| `Cdtoons| `Cdxl| `Cfhd| `Cinepak| `Clearvideo| `Cljr| `Cllc| `Cmv| `Cpia| `Cri| `Cscd| `Cyuv| `Daala| `Dds| `Dfa| `Dirac| `Dnxhd| `Dpx| `Dsicinvideo| `Dvvideo| `Dxa| `Dxtory| `Dxv| `Escape124| `Escape130| `Exr| `Ffv1| `Ffvhuff| `Fic| `Fits| `Flashsv| `Flashsv2| `Flic| `Flv1| `Fmvc| `Fraps| `Frwu| `G2m| `Gdv| `Gem
| `Gif| `H261| `H263| `H263i| `H263p| `H264| `Hap| `Hevc| `Hnm4_video| `Hq_hqa| `Hqx| `Huffyuv| `Hymt| `Idcin| `Iff_ilbm| `Imm4| `Imm5| `Indeo2| `Indeo3| `Indeo4| `Indeo5| `Interplay_video| `Ipu| `Jpeg2000| `Jpegls| `Jpegxl| `Jv| `Kgv1| `Kmvc| `Lagarith| `Ljpeg| `Loco| `Lscr| `M101| `Mad| `Magicyuv| `Mdec| `Mimic| `Mjpeg| `Mjpegb| `Mmvideo| `Mobiclip| `Motionpixels| `Mpeg1video| `Mpeg2video| `Mpeg4| `Msa1| `Mscc| `Msmpeg4v1| `Msmpeg4v2| `Msmpeg4v3| `Msp2| `Msrle| `Mss1| `Mss2| `Msvideo1| `Mszh| `Mts2| `Mv30| `Mvc1| `Mvc2| `Mvdv| `Mvha| `Mwsc| `Mxpeg| `Notchlc| `Nuv| `Paf_video| `Pam| `Pbm| `Pcx| `Pfm| `Pgm| `Pgmyuv| `Pgx| `Phm| `Photocd| `Pictor| `Pixlet
| `Png| `Ppm| `Prores| `Prosumer| `Psd| `Ptx| `Qdraw| `Qoi| `Qpeg| `Qtrle| `R10k| `R210| `Rasc| `Rawvideo| `Rl2| `Roq| `Rpza| `Rscc| `Rv10| `Rv20| `Rv30| `Rv40| `Sanm| `Scpr| `Screenpresso| `Sga_video| `Sgi| `Sgirle| `Sheervideo| `Simbiosis_imx| `Smackvideo| `Smc| `Smvjpeg| `Snow| `Sp5x| `Speedhq| `Srgc| `Sunrast
| `Svg| `Svq1| `Svq3| `Targa| `Targa_y216| `Tdsc| `Tgq| `Tgv| `Theora| `Thp| `Tiertexseqvideo| `Tiff| `Tmv| `Tqi| `Truemotion1| `Truemotion2| `Truemotion2rt| `Tscc| `Tscc2| `Txd| `Ulti| `Utvideo| `V210| `V210x| `V308| `V408| `V410| `Vb| `Vble| `Vbn| `Vc1| `Vc1image| `Vcr1| `Vixl| `Vmdvideo| `Vmnc| `Vp3| `Vp4| `Vp5| `Vp6| `Vp6a| `Vp6f| `Vp7| `Vp8| `Vp9| `Vvc| `Wcmv
| `Webp| `Wmv1| `Wmv2| `Wmv3| `Wmv3image| `Wnv1| `Ws_vqa| `Xan_wc3| `Xan_wc4| `Xbm| `Xface| `Xpm| `Xwd| `Y41p| `Ylc| `Yop| `Yuv4| `Zerocodec| `Zlib| `Zmbv| `_012v| `_4xm| `_8bps ]type audio = [ | `Aac| `Aac_latm| `Ac3| `Acelp_kelvin| `Adpcm_4xm| `Adpcm_adx| `Adpcm_afc| `Adpcm_agm| `Adpcm_aica| `Adpcm_argo| `Adpcm_ct| `Adpcm_dtk| `Adpcm_ea| `Adpcm_ea_maxis_xa| `Adpcm_ea_r1| `Adpcm_ea_r2| `Adpcm_ea_r3| `Adpcm_ea_xas| `Adpcm_g722| `Adpcm_g726| `Adpcm_g726le| `Adpcm_ima_acorn| `Adpcm_ima_alp| `Adpcm_ima_amv| `Adpcm_ima_apc| `Adpcm_ima_apm| `Adpcm_ima_cunning| `Adpcm_ima_dat4| `Adpcm_ima_dk3| `Adpcm_ima_dk4| `Adpcm_ima_ea_eacs| `Adpcm_ima_ea_sead| `Adpcm_ima_iss| `Adpcm_ima_moflex| `Adpcm_ima_mtf| `Adpcm_ima_oki| `Adpcm_ima_qt| `Adpcm_ima_rad| `Adpcm_ima_smjpeg| `Adpcm_ima_ssi| `Adpcm_ima_wav| `Adpcm_ima_ws| `Adpcm_ms| `Adpcm_mtaf| `Adpcm_psx| `Adpcm_sbpro_2| `Adpcm_sbpro_3| `Adpcm_sbpro_4| `Adpcm_swf| `Adpcm_thp| `Adpcm_thp_le| `Adpcm_vima| `Adpcm_xa| `Adpcm_yamaha| `Adpcm_zork| `Alac| `Amr_nb| `Amr_wb| `Ape| `Aptx| `Aptx_hd| `Atrac1| `Atrac3| `Atrac3al| `Atrac3p| `Atrac3pal| `Atrac9| `Binkaudio_dct| `Binkaudio_rdft| `Bmv_audio| `Celt| `Codec2| `Comfort_noise| `Cook| `Derf_dpcm| `Dfpwm| `Dolby_e| `Dsd_lsbf| `Dsd_lsbf_planar| `Dsd_msbf| `Dsd_msbf_planar| `Dsicinaudio| `Dss_sp| `Dst| `Dts| `Dvaudio| `Eac3| `Evrc| `Fastaudio| `Ffwavesynth| `Flac| `G723_1| `G729| `Gremlin_dpcm| `Gsm| `Gsm_ms| `Hca| `Hcom| `Iac| `Ilbc| `Imc| `Interplay_acm| `Interplay_dpcm| `Mace3| `Mace6| `Metasound| `Mlp| `Mp1| `Mp2| `Mp3| `Mp3adu| `Mp3on4| `Mp4als| `Mpegh_3d_audio| `Msnsiren| `Musepack7| `Musepack8| `Nellymoser| `On2avc| `Opus| `Paf_audio| `Pcm_alaw| `Pcm_bluray| `Pcm_dvd| `Pcm_f16le| `Pcm_f24le| `Pcm_f32be| `Pcm_f32le| `Pcm_f64be| `Pcm_f64le| `Pcm_lxf| `Pcm_mulaw| `Pcm_s16be| `Pcm_s16be_planar| `Pcm_s16le| `Pcm_s16le_planar| `Pcm_s24be| `Pcm_s24daud| `Pcm_s24le| `Pcm_s24le_planar| `Pcm_s32be| `Pcm_s32le| `Pcm_s32le_planar| `Pcm_s64be| `Pcm_s64le| `Pcm_s8| `Pcm_s8_planar| `Pcm_sga| `Pcm_u16be| `Pcm_u16le| `Pcm_u24be| `Pcm_u24le| `Pcm_u32be| `Pcm_u32le| `Pcm_u8| `Pcm_vidc| `Pcm_zork| `Qcelp| `Qdm2| `Qdmc| `Ra_144| `Ra_288| `Ralf| `Roq_dpcm| `S302m| `Sbc| `Sdx2_dpcm| `Shorten| `Sipr| `Siren| `Smackaudio| `Smv| `Sol_dpcm| `Sonic| `Sonic_ls| `Speex| `Tak| `Truehd| `Truespeech| `Tta| `Twinvq| `Vmdaudio| `Vorbis| `Wavpack| `Westwood_snd1| `Wmalossless| `Wmapro| `Wmav1| `Wmav2| `Wmavoice| `Xan_dpcm| `Xma1| `Xma2| `_4gv| `_8svx_exp| `_8svx_fib ]