Hi,
I am trying to use ffmpeg to apply multiple filters -single input, multiple outputs- . In concrete, I am splitting the output in two, then applying an overlaying patch to one of those streams, split again and select a time range. The command I am using is: ffmpeg \ -i ./dataset_test/videos/jz_10_huron_barstow.mkv \ -an \ -sn \ -loglevel error \ -filter_complex \ "[0:v]split=2[L_in][F_in]; [L_in] crop=226:307:21:74,scale=200x200,setdar=200:200,split=2\ [L_in_0][L_in_1];\ color=#808080:226x307,setpts=PTS-STARTPTS[L_PATCH];\ [F_in][L_PATCH] overlay=21:74:shortest=1,scale=200x200,setdar=200:200,split=2\ [F_in_0][F_in_1];\ [F_in_0]select='between(t\,32\,212)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[F_0];\ [F_in_1]select='between(t\,213\,393)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[F_1];\ [L_in_0]select='between(t\,32\,212)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[L_0];\ [L_in_1]select='between(t\,213\,393)',select='not(mod(n\,20))',setpts=(PTS-STARTPTS)/20[L_1]\ "\ -map [F_0] -an -sn ./out/jz_10_huron_barstow/F/0_F.mp4\ -map [F_1] -an -sn ./out/jz_10_huron_barstow/F/1_F.mp4\ -map [L_0] -an -sn ./out/jz_10_huron_barstow/L/0_L.mp4\ -map [L_1] -an -sn ./out/jz_10_huron_barstow/L/1_L.mp4\ For some reason, 0_F.mp4 is empty and 1_F.mp4 is cropped. My intuition is that it has something to do with applying splitting + overlaying + selecting. I think at some point some filter before select is changing the PTS of the frames in some way select is not properly discarding them, but I honestly don't know how to solve it. Some insights: 1) L_0 and L_1 are fine (no overlay is used in those two) 2) If I supress L outputs everything works fine (no "split" is needed at the beginning) Could someone provide some light? I've beens stucked with this for two days and I don't really know what else to try. Many thanks, Josep _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".