[FFmpeg-user] Converting pictures to video

[gga]

On 5/12/19 21:07, Anwuli Okwuashi wrote:
> Thank you,
>
> Yes, the first command is the stata blog extrat, the second is mine.
> Previous attempts had the value for the -b:v but still did not work.
> I have 20 png files created using stata, I just need to convert them to
> video/animation. With that, I'll appreciate any help.
>
>
> On Thu, Dec 5, 2019, 5:49 PM gga <ggarra13 at gmail.com> wrote:
>
>> On 5/12/19 18:11, Anwuli Okwuashi wrote:
>>> Hello,
>>> Newbie alert!
>>> I am unable to recreate an animation I found on stata blog
>>>
>> https://blog.stata.com/2014/03/24/how-to-create-animated-graphics-using-stata/
>>>    .
>>>
>>> local GraphPath "C:\Users\jch\AnimatedGraphics\example\"
>>> winexec "C:\Program Files\FFmpeg\bin\ffmpeg.exe" -i
>> `GraphPath'graph_%03d.png
>>>       -b:v 512k `GraphPath'graph.mpg
>>>
>>>    My code: ran without errors but no video was created
>>> local GraphPath "C:\Users\analyst\Desktop\STATA\projects\animation\"
>>> winexec "C:\FFmpeg\bin\ffmpeg.exe" -i `GraphPath'i_diff_%.png -b:v
>>> `GraphPath'graph.mpg.
>>>
>>> Any idea why mine isn't working? I use windows 10.
>> I have no idea about stata, but do you realize you posted two different
>> commands?  Also, the second command is missing the value for -b:v.

Also, the second command is missing the frame specifier.  You only have 
%.png instead of %03d.png (for 3 padded digits) or %d.png (for single 
digits).