[FFmpeg-user] make a video from 1000 txt file

[Spencer Graves]

On 3/11/2014 7:13 AM, Pál Levente wrote:
> I forget to say I use debian.
>
>
> 2014-03-11 15:09 GMT+01:00 Pál Levente <pallevi93 at gmail.com>:
>
>> Hello!
>> I have 1000 txt file with each one have 300 lines and 3 columns with
>> numbers. I want make a video, with graph the first and the second column (x
>> an y axis)(with gnuplot). And start with the first txt and make steps while
>> reach the last txt.
>> I searched on it, but I not really find anything. If i found something
>> it's not work.
>> So can somebody give me a hand?
>> Thanks
>> Levi

       This can be done in two steps:


CORRECTION:


             1.  Convert the text files to graphics, e.g., plot1.png, 
plot2.png, ... plot9.png, plot10.png, ..., plot300.png.  For this I 
routinely use R (r-project.org).  [An experiment with plot01.png, ... 
plot15.png failed, but plot1.png, ..., plot9.png,plot10.png, ..., 
plot15.png worked.]


             2.  "ffmpeg -y -r 300 -i plot%d.png -b 300k -pix_fmt 
yuv420p tst.mp4".  This was discussed in a recent thread I initiated on 
"Windows Media Player cannot play the file" 
(http://ffmpeg.org/pipermail/ffmpeg-user/2014-March/subject.html). The 
first email on this thread included 3 png files that were successfully 
combined using a version of this command in the seventh email in this 
thread.


       Hope this helps.
       Spencer

>>
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