Using Delphi or FFMpeg to create a movie from image sequence
- by Hein du Plessis
Hi all
My Delphi app has created a squence called frame_001.png to frame_100.png.
I need that to be compiled into a movie clip. I think perhaps the easiest is to call ffmpeg from the command line, according to their documentation:
For creating a video from many images:
ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi
The syntax foo-%03d.jpeg specifies to use a decimal number composed of three digits padded with zeroes to express the sequence number. It is the same syntax supported by the C printf function, but only formats accepting a normal integer are suitable.
From: http://ffmpeg.org/ffmpeg-doc.html#SEC5
However my files are (lossless) png format, so I have to convert using imagemagick first.
My command line is now:
ffmpeg.exe -f image2 -i c:\temp\wentelreader\frame_%05d.jpg -r 12 foo.avi
But then I get the error:
[image2 @ 0x133a7d0]Could not find codec parameters (Video: mjpeg)
c:\temp\wentelreader\Frame_C:\VID2EVA\Tools\Mencoder\wentel.bat5d.jpg: could not
find codec parameters
What am I doing wrong?
Alternatively can this be done easily with Delphi?
