I am trying to flip 180 degrees parts of a video file from action camera. When i was using
"[clpABCD][clpEF][clpG]concat[out1]" -" instead of "[clpABCD][clpEFG]concat[out1]" -"
ffmpeg said Too many inputs specified for the "concat" filter !!!! Why?
ffmpeg -i video_output_02.avi -filter_complex \
"[0:v]trim=start=0:duration=516[clpA];\
[0:v]trim=start=516:duration=1,setpts=PTS-STARTPTS[clpB];\
[clpB]vflip, hflip[clpBf];\
[clpA][clpBf]concat[clpAB];\
[0:v]trim=start=517:duration=1204,setpts=PTS-STARTPTS[clpC];\
[0:v]trim=start=1721:duration=155,setpts=PTS-STARTPTS[clpD];\
[clpD]vflip, hflip[clpDf];\
[clpC][clpDf]concat[clpCD];\
[clpAB][clpCD]concat[clpABCD];\
[0:v]trim=start=1876:duration=581,setpts=PTS-STARTPTS[clpE];\
[0:v]trim=start=2457:duration=24,setpts=PTS-STARTPTS[clpF];\
[clpF]vflip, hflip[clpFf];\
[clpE][clpFf]concat[clpEF];\
[0:v]trim=start=2481:duration=253,setpts=PTS-STARTPTS[clpG];\
[clpABCD][clpEF][clpG]concat[out1]" -map [out1] -crf 14 -vcodec libx264 -vb 20M Hflip_2.mp4
ffmpeg version 4.2.3 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
configuration: --enable-gpl --enable-libx264 --enable-libvpx --enable-libmp3lame --enable-libopus
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, avi, from 'video_output_02.avi':
Metadata:
encoder : Lavf58.29.100
Duration: 00:45:34.41, start: 0.000000, bitrate: 22653 kb/s
Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuvj420p(pc, progressive), 1280x720 [SAR 1521:1520 DAR 169:95], 22649 kb/s, 32 fps, 32 tbr, 32 tbn, 64 tbc
[AVFilterGraph @ 0x564f261d9340] Too many inputs specified for the "concat" filter.
ffmpeg -i video_output_02.avi -filter_complex \
"[0:v]trim=start=0:duration=516[clpA];\
[0:v]trim=start=516:duration=1,setpts=PTS-STARTPTS[clpB];\
[clpB]vflip, hflip[clpBf];\
[clpA][clpBf]concat[clpAB];\
[0:v]trim=start=517:duration=1204,setpts=PTS-STARTPTS[clpC];\
[0:v]trim=start=1721:duration=155,setpts=PTS-STARTPTS[clpD];\
[clpD]vflip, hflip[clpDf];\
[clpC][clpDf]concat[clpCD];\
[clpAB][clpCD]concat[clpABCD];\
[0:v]trim=start=1876:duration=581,setpts=PTS-STARTPTS[clpE];\
[0:v]trim=start=2457:duration=24,setpts=PTS-STARTPTS[clpF];\
[clpF]vflip, hflip[clpFf];\
[clpE][clpFf]concat[clpEF];\
[0:v]trim=start=2481:duration=253,setpts=PTS-STARTPTS[clpG];\
[clpEF][clpG]concat[clpEFG];\
[clpABCD][clpEFG]concat[out1]" -map [out1] -crf 14 -vcodec libx264 -vb 20M Hflip_2.mp4
The command that "is working"
ffmpeg -i video_output_02.avi -filter_complex \
"[0:v]trim=start=0:duration=516[clpA];\
[0:v]trim=start=516:duration=1,setpts=PTS-STARTPTS[clpB];\
[clpB]vflip, hflip[clpBf];\
[clpA][clpBf]concat[clpAB];\
[0:v]trim=start=517:duration=1204,setpts=PTS-STARTPTS[clpC];\
[0:v]trim=start=1721:duration=155,setpts=PTS-STARTPTS[clpD];\
[clpD]vflip, hflip[clpDf];\
[clpC][clpDf]concat[clpCD];\
[clpAB][clpCD]concat[clpABCD];\
[0:v]trim=start=1876:duration=581,setpts=PTS-STARTPTS[clpE];\
[0:v]trim=start=2457:duration=24,setpts=PTS-STARTPTS[clpF];\
[clpF]vflip, hflip[clpFf];\
[clpE][clpFf]concat[clpEF];\
[0:v]trim=start=2481:duration=253,setpts=PTS-STARTPTS[clpG];\
[clpEF][clpG]concat[clpEFG];\
[clpABCD][clpEFG]concat[out1]" -map [out1] -crf 14 -vcodec libx264 -vb 20M Hflip_2.mp4