On 10/12/2019 5:09 am, Anwuli Okwuashi wrote: > winexec "C:\FFmpeg\bin\ffmpeg.exe" -report -f concat -safe 0 -i > "C:\Users\analyst\Desktop\STATA\projects\animation3\graph_%d.png" -maxrate > 30000k -y > "C:\Users\analyst\Desktop\STATA\projects\animation3\map_video1.mpg"
When you use the concat demuxer , after "-i", (the input file(s) option), don't use: *graph_%d.png* Instead, use the name of the text file you've created that contains either 1- or 2 entries for every image filename you wish to load. This way, the group of image filenames does not need to be contiguous in its numbering or start its numbering within 0-4 of the index value. https://trac.ffmpeg.org/wiki/Concatenate If you look at my post you will see that I have presented a batchfile called *create_list.bat*: @echo off SETLOCAL EnableDelayedExpansion if exist mylist.txt del mylist.txt for %%I in ("Sequence Directory\*.png") do (echo file '%%~fI' >> mylist.txt & echo duration 0.04 >> mylist.txt) start /i mylist.txt The way it is currently written, it looks a directory-level down from the current directory for a sub-directory called "Sequence directory". This is just an example. You could alter it to suit yourself. In my example, I had create_list.bat and ffmpeg.exe in "C:\test directory". So, when executing create_list.bat from there, it is looking for all the .png files I've placed in "C:\test directory\Sequence directory" and then creating a name-sorted list in the current directory ("C:\test directory") called *mylist.txt*. Finally, it was loading this text file in the Windows-associated program, notepad.exe., for examination and modification*. *This final step is an optional process.* * In my example, the first 4 image files in this sorted list which would be read by the concat demuxer and loaded into ffmpeg were: file 'C:\test directory\Sequence directory\Replacement.png' duration 0.04 file 'C:\test directory\Sequence directory\Sequence_0083.png' duration 0.04 file 'C:\test directory\Sequence directory\Sequence_0086.png' duration 0.04 file 'C:\test directory\Sequence directory\Sequence_0089.png' duration 0.04 Once you have created your list of image filenames, you use it this way (an example):* * *ffmpeg.exe -f concat -safe 0 -i "C:\test directory\mylist.txt" -maxrate 30000k -y "C:\test directory\Sequence directory"\map_video6.mpg* In your case your directory structure appears not to be separating your working directory from your data (image) directory. This is OK if you only a few image files, but gets messy when you have thousands of images. Assuming you want create_list.bat to operate from the "animation3" directory you would alter its contents to: @echo off SETLOCAL EnableDelayedExpansion if exist mylist.txt del mylist.txt for %%I in (*.png") do (echo file '%%~fI' >> mylist.txt & echo duration 0.04 >> mylist.txt) start /i mylist.txt And then your ffmpeg.exe command line would be: ***winexc "C:\Users\analyst\Desktop\STATA\projects\animation3\mylist.txt" -maxrate 30000k -y "C:\Users\analyst\Desktop\STATA\projects\animation3\map_video1.mpg"* Dan.* * * * ** _______________________________________________ ffmpeg-user mailing list firstname.lastname@example.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".