Estoy en Linux Mint 19. Estoy intentando extraer un videoclip de un archivo mkv.
Encontré un comando de muestra antiguo en algunas notas que tenía, pero para mpeg. Cambié las cadenas relevantes e intenté ejecutar este comando:
ffmpeg -i input.mkv -ss 00:12:38.000 -t 00:02:71 output.mkv
Recibí este mensaje de error:
Invalid duration specification for t: 00:02:71
Quería comenzar el clip a las 12:38 del vídeo y quería que el clip tuviera una duración de 2:71.
El resultado completo se encuentra a continuación. Gracias por cualquier pista
Mint19Cinnamon3.8.9> ffmpeg -i input.mkv -ss 00:12:38.000 -t 00:02:71 output.mkv
ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
WARNING: library configuration mismatch
avcodec configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc
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
libavresample 3. 7. 0 / 3. 7. 0
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 'input.mkv':
Metadata:
encoder : libebml v1.3.9 + libmatroska v1.5.2
creation_time : 2019-11-15T05:11:58.000000Z
Duration: 00:49:56.61, start: 0.000000, bitrate: 4331 kb/s
Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Metadata:
BPS-eng : 3689288
DURATION-eng : 00:49:56.577000000
NUMBER_OF_FRAMES-eng: 71846
NUMBER_OF_BYTES-eng: 1381904488
_STATISTICS_WRITING_APP-eng: mkvmerge v38.0.0 ('The Silent Type') 64-bit
_STATISTICS_WRITING_DATE_UTC-eng: 2019-11-15 05:11:58
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
Metadata:
BPS-eng : 640000
DURATION-eng : 00:49:56.608000000
NUMBER_OF_FRAMES-eng: 93644
NUMBER_OF_BYTES-eng: 239728640
_STATISTICS_WRITING_APP-eng: mkvmerge v38.0.0 ('The Silent Type') 64-bit
_STATISTICS_WRITING_DATE_UTC-eng: 2019-11-15 05:11:58
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:2(eng): Subtitle: subrip
Metadata:
title : English
BPS-eng : 54
DURATION-eng : 00:47:28.011000000
NUMBER_OF_FRAMES-eng: 701
NUMBER_OF_BYTES-eng: 19492
_STATISTICS_WRITING_APP-eng: mkvmerge v38.0.0 ('The Silent Type') 64-bit
_STATISTICS_WRITING_DATE_UTC-eng: 2019-11-15 05:11:58
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Invalid duration specification for t: 00:02:71
Mint19Cinnamon3.8.9>
Respuesta1
-t 00:02:71significa 2 minutos y 71 segundos, por lo que debería escribirse como -t 00:03:11. Si desea que dure 2 segundos y 710 milisegundos, use-t 00:02.71