gistfile1.txt

[video14]fifo[video15];
[video15]fifo[video19];
[video19]scale=height=1080:width=1920[video3];
[video3]setdar=r=1.7777777777777777[video2];
[video2]fps=fps=25[video9];
[video9]settb=expr=1/25[video11];
[video11]format=pix_fmts=yuv420p[video13];
[video13]fifo[video21];
[video21]concat=n=1:v=1:a=0[video23];
[video23]scale=height=1080:width=1920[video7]
[video7]setdar=r=1.7777777777777777[video6];



[audio16]afifo[audio17];
[audio17]afifo[audio18];
[audio18]anull[audio1];
[audio1]anull[audio0];
[audio0]anull[audio8];
[audio8]anull[audio10];
[audio10]aformat=sample_rates=44100:channel_layouts=stereo:sample_fmts=fltp[audio12];
[audio12]afifo[audio20];
[audio20]concat=n=1:v=0:a=1[audio22];
[audio22]anull[audio5];
[audio5]anull[audio4];