[FFmpeg-user] Wrong Duration

Yugant Khanna yugant at gmail.com
Mon Sep 2 10:46:17 CEST 2013


Hi ,
I have uploaded one .mxf file at the following url

https://www.wetransfer.com/downloads/5880b625772f746b35779d067ea4091d20130902081204/2c99ae37db1b272095a1b607c867282c20130902081204/aba1e7


The issue is when i use FFMPEG / FFPROBE to get the duration of the .mxf it
shows 00:02:10.48
wheras the actual duration of the file is 5 secs only. You can doesnload
the file from the above url

C:\Users\yugantk>ffmpeg -i D:\TESTSMOKE.mxf
ffmpeg version N-55020-g768e40b Copyright (c) 2000-2013 the FFmpeg
developers
  built on Jul 28 2013 18:01:30 with gcc 4.7.3 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
--enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca
--enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
--ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
--enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc
--enable-libvo-
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libxavs --
enable-libxvid --enable-zlib
  libavutil      52. 40.100 / 52. 40.100
  libavcodec     55. 19.100 / 55. 19.100
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 81.103 /  3. 81.103
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.103 /  0. 17.103
  libpostproc    52.  3.100 / 52.  3.100
[mxf @ 00359fc0] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for  Input Stream #0.1 : stereo
Input #0, mxf, from 'D:\TESTSMOKE.mxf':
  Metadata:
    uid             : 058bb481-067c-11e3-9682-a8968af1e82e
    generation_uid  : 058bb482-067c-11e3-a20e-a8968af1e82e
    company_name    : Autodesk
    product_name    : Smoke
    product_version : 2013
    application_platform: Mac OS X
    product_uid     : ec500c00-9200-11dc-940c-000d605329fa
    modification_date: 2013-08-16 13:59:09
    timecode        : 00:00:00:00
  Duration: *00:02:10.48*, start: 0.000000, bitrate: 2303 kb/s
    Stream #0:0: Video: dvvideo, yuv422p, 720x576 [SAR 16:15 DAR 4:3], 25
fps, 2
5 tbr, 25 tbn, 25 tbc
    Stream #0:1: Audio: pcm_s24le, 48000 Hz, stereo, s32, 2304 kb/s
At least one output file must be specified

Even if i use the ffprobe , still it gives me the Duration as 00:02:10:48.

Wheras the actual duration os the file is 5s 0ms .  I reched it with Media
info and VLC player it's 5 secs only

*Complete name :* D:\TESTSMOKE.mxf *Format :* MXF *Commercial name :* DVCPRO
50 *Format profile :* OP-1a *Format settings :* Open / Incomplete *File
size :* 35.8 MiB *Duration :* 5s 0ms *Overall bit rate mode :*
Constant *Overall
bit rate :* 60.1 Mbps *Encoded date :* 2013-08-16 13:59:09.000 *Writing
application :* Autodesk Smoke 4.4.17.0.1 *Writing library :* Autodesk Smoke
4.4.17.0.1


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