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POcalculate the real duration time of a broken movie with ffmpeg/ffprobe
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copied!<p>I have a broken video file that its ffprobe (ffprobe -i movie.mkv) say its duration is about 2 hours, but the file contains only video data for first 8minutes (check by VLC Player). </p> <p>How can i get the real duration (8minutes) using ffmpeg or ffprobe?</p> <p>here is the output:</p> <pre><code>ffprobe version 0.7.13, Copyright (c) 2007-2011 the FFmpeg developers built on Aug 1 2012 21:08:35 with clang 3.1 (tags/Apple/clang-318.0.58) configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libdirac --enable-libschroedinger --enable-libopenjpeg --enable-libvpx --enable-libspeex --disable-libopencore-amrnb --disable-libopencore-amrwb --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --arch=x86_64 --enable-yasm --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid libavutil 50. 43. 0 / 50. 43. 0 libavcodec 52.123. 0 / 52.123. 0 libavformat 52.111. 0 / 52.111. 0 libavdevice 52. 5. 0 / 52. 5. 0 libavfilter 1. 80. 0 / 1. 80. 0 libswscale 0. 14. 1 / 0. 14. 1 libpostproc 51. 2. 0 / 51. 2. 0 [matroska,webm @ 0x7f93dc01e600] Estimating duration from bitrate, this may be inaccurate Input #0, matroska,webm, from 'Mission.mkv': Duration: 02:12:56.21, start: 0.000000, bitrate: 448 kb/s Stream #0.0: Video: mpeg4, yuv420p, 1280x528 [PAR 1:1 DAR 80:33], 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default) Stream #0.1: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s (default) </code></pre>

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