[FFmpeg-user] Timestamp using PC Clock - possible payment for solution.

[Byron J]

Micael, this might be exactly what I have been looking for, I'll try it.
And duhu to me for not spotting the "localtime" setting.... ;)

Byron Johnson



On Tue, Nov 12, 2019 at 4:07 PM Micael Silva <micaelsilva at gmail.com> wrote:

> On Tue, Nov 12, 2019 at 5:37 PM Byron J <byronj64 at gmail.com> wrote:
>
> > Hello,
> >
> > What are some methods of timestamping video? I found one method using the
> > framerate but I would like to use the PC clock.
> >
> > Any help would be greatly appreciated. If anyone is interested, payment
> for
> > the solution could be a possibility.
> >
> > Here is the .bat file with the FFMPEG commands running the
> postprocessing.
> >
> >
> > setlocal
> > @echo off
> > set sourcefile=%~1
> > set destfile=%~2
> > shift
> > shift
> > REM Variables
> > set sourcefile=%sourcefile%
> > set destfile=%destfile%
> > set tempfile=%sourcefile:~0,-3%_tmp.mp4
> > set logofile=C:\Users\Public\WinTV\fox49-logo-header-v2.png
> > set hour=%sourcefile:~-7,2%
> > set min=%sourcefile:~-5,2%
> > set year=%date:~10,4%
> > set month=%date:~4,2%
> > set day=%date:~7,2%
> > set dts=%year%_%month%_%day%
> > echo WinTV8 Post processing log. > postprocess.log
> > echo sourcefile = %sourcefile%  >> postprocess.log
> > echo destfile = %destfile% >> postprocess.log
> > echo tempfile = %tempfile% >> postprocess.log
> > echo logofile = %logofile% >> postprocess.log
> > echo hour = %hour% >> postprocess.log
> > echo min = %min% >> postprocess.log
> > echo dts = %dts% >> postprocess.log
> > REM Video Processing
> > echo Starting timecode overlay... >> postprocess.log
> > ffmpeg -y -i %sourcefile% -b:v 1M -vcodec libx264 -preset ultrafast -s
> > 480X360 -vf drawtext="text='%dts%\ \ \ \
> > ':timecode='%hour%\:%min%\:00\:00': rate=25:
> > fontfile=C\\:\\Windows\\Fonts\\Ariel.ttf: x=400: y=h-lh-1:
> >
> >
> fontcolor=white:shadowcolor=black:shadowx=1:shadowy=1:fontsize=72:box=1:boxcolor=black at 0.5
> > :boxborderw=5:"
> > %tempfile%
> > echo End timecode overlay. >> postprocess.log
> > echo Starting image overlay... >> postprocess.log
> > ffmpeg -y -i %tempfile% -i %logofile% -filter_complex
> > "[1:v]format=argb,geq=r='r(X,Y)':a='0.5*alpha(X,Y)'[image];
> > [0:v][image]overlay=(main_w-overlay_w-0):(main_h-overlay_h-2)" %destfile%
> > echo End image overlay. >> postprocess.log
> > REM Validate file exsists and cleanup
> > if exist "%destfile%" (
> >     del %tempfile% >> postprocess.log
> > del %sourcefile% >> postprocess.log
> > ) else (
> >     echo Error processing file %sourcefile%. >> postprocessing.log
> > )
> > echo End post processing. >> postprocess.log
> > endlocal
> >
> >
> It you want to use the current time of the encoding you can use
> '%{localtime\:%X}' on text option in the drawtext filter
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