C:\Users\ezbrini\Desktop>ffmpeg -i input1.mkv -i input2.mkv -filter_complex "[0: v][1:v] signature=nb_inputs=2:detectmode=full:format=xml:filename=signaturev -f null ÔÇôÔÇ£ ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 7.2.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --e nable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libblur ay --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopu s --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --ena ble-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-lib x264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-z lib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-c uvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-l ibmfx libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 Input #0, matroska,webm, from 'input1.mkv': Metadata: COMPATIBLE_BRANDS: isommp42 MAJOR_BRAND : mp42 MINOR_VERSION : 0 ENCODER : Lavf58.9.100 Duration: 00:03:16.89, start: 0.000000, bitrate: 1324 kb/s Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 50 tbc (default) Metadata: HANDLER_NAME : ISO Media file produced by Google Inc. Created on: 10/03 /2017. ENCODER : Lavc58.11.101 libx264 DURATION : 00:03:16.883000000 Stream #0:1: Audio: vorbis, 44100 Hz, stereo, fltp (default) Metadata: HANDLER_NAME : ISO Media file produced by Google Inc. Created on: 10/03 /2017. ENCODER : Lavc58.11.101 libvorbis DURATION : 00:03:16.885000000 Input #1, matroska,webm, from 'input2.mkv': Metadata: COMPATIBLE_BRANDS: isommp42 MAJOR_BRAND : mp42 MINOR_VERSION : 0 ENCODER : Lavf58.9.100 Duration: 00:03:16.89, start: 0.000000, bitrate: 1324 kb/s Stream #1:0: Video: h264 (High), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 50 tbc (default) Metadata: HANDLER_NAME : ISO Media file produced by Google Inc. Created on: 10/03 /2017. ENCODER : Lavc58.11.101 libx264 DURATION : 00:03:16.883000000 Stream #1:1: Audio: vorbis, 44100 Hz, stereo, fltp (default) Metadata: HANDLER_NAME : ISO Media file produced by Google Inc. Created on: 10/03 /2017. ENCODER : Lavc58.11.101 libvorbis DURATION : 00:03:16.885000000 [Parsed_signature_0 @ 00000000004a31c0] The filename must contain %d or %0nd, if you have more than one input. [AVFilterGraph @ 000000000273d340] Error initializing filter 'signature' with ar gs 'nb_inputs=2:detectmode=full:format=xml:filename=signaturev -f null ├ö├ç├┤├ö├ ç┬ú' Error initializing complex filters. Invalid argument C:\Users\ezbrini\Desktop>PAUSE Press any key to continue . . .