[FFmpeg-user] Stripping 'actual time of day' from AVI files

Katherine Yee katherinegyee at gmail.com
Sat Apr 26 00:48:00 CEST 2014

(previous limit size was over 250K)


Yes! Thats the lovely sound that comes out of all the videos that I have.
So supposedly theres time (and navigation) embedded in the audio? I've also
attached a sample of the file that I am working with. I was using ffmpeg in
terminal to try to extract the start time of the video.

    timecode        : 00:00:00;00
    Duration: 00:01:16.51, start: 0.000000, bitrate: 124294 kb/s
    Stream #0:0: Video: rawvideo (Y41B / 0x42313459), yuv411p, 720x480, SAR
8:9 DAR 4:3, 29.97 tbr, 29.97 tbn, 29.97 tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 32000 Hz, stereo, s16p,
96 kb/s

But it just shows timecode: 00:00:00;00 instead of an actual time that I'm
looking for.


.:"If you put your mind to it, you can accomplish anything":. Marty McFly

On Fri, Apr 25, 2014 at 2:28 PM, Lou <lou at lrcd.com> wrote:

> On Fri, 25 Apr 2014 13:29:21 -0400
> Katherine Yee <katherinegyee at gmail.com> wrote:
> > To Whom This May Concern,
> >
> > I was wondering if you knew a way to (I'm not sure if I am wording this
> > correctly) extract the 'time of day' off of .AVI files. It is apparently
> > embedded in the audio. I currently use SMPTE to monitor the time, so I
> know
> > it's there, but I need to extract ​the time (and navigation), preferably
> in
> > a .txt or .doc file, that is embedded in the file. All the different
> > scripts that I use through ffmpeg only give me a start: 0.0000000 and
> > duration: 00:01:23:83. Can this be even done? Any kind of help would be
> > very much appreciated!
> >
> > Thanks,
> > Katherine
> Please provide a short sample if possible.
> I'm not exactly sure what you're referring to, but does the audio sound
> like noise? I ask because I have some samples that, if I recall
> correctly, contain linear timecode within a channel of the audio stream:
> http://avmule.com/samples/deltasub.mp3
> Turn your audio down before playing.
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