[FFmpeg-user] randomly named png to mp4: ffmpeg

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Jan 15 09:13:34 CET 2014

Tyler Rinker <tyler.rinker <at> gmail.com> writes:

> ffmpeg -r 4 -i a.png b.png c.png -c:v libx264 -r 4 
> -pix_fmt yuv420p out.mp4

This command line specifies b.png and c.png as output 
See the concat protocol, the concat demuxer and the 
concat filter in the documentation.


> cat C:\Users\trinker\Desktop\raw3*.png | ffmpeg -f image2pipe 
> -r 1 -vcodec png -i - -vcodec libx264 out.mp4

This is supposed to work / is one of the solutions to 
the problem you explained...

> cat: C:\Users\trinker\Desktop\raw3*.png: No such file or directory

But of course only if cat sends something to FFmpeg.

Carl Eugen

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