Hello, When running the following command:
``` ffmpeg \ -loop 1 -framerate 30 -t 1.4 -i /assets/img/filler640480.jpg -i 0d.mp4 - y \ -loop 1 -framerate 30 -t 891.113 -i /assets/img/filler640480.jpg -i 9f.mp4 -y \ -f lavfi -t 0.1 -i anullsrc=channel_layout=mono:sample_rate=48000 \ -filter_complex " [0:v]setsar=1[v0];[2:v]setsar=1[v1];[v0][4:a][1:v][1:a][v1][4:a][3:v][3:a]concat=n=4:v=1:a=1" -vsync 2 -vcodec libx264 -pix_fmt yuv420p 0245-grid.mp4 ``` I am getting the following error: ``` Stream specifier ':a' in filtergraph description [0:v]setsar=1[v0];[2:v]setsar=1[v1];[v0][4:a][1:v][1:a][v1][4:a][3:v][3:a]concat=n=4:v=1:a=1 matches no streams. ``` This only happens on some video processing not all, cannot seem to figure out why. Thank You, Randy _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
