> Use -vsync 0. No addiitional frames should be added. Well, this is true, but the video is switched to cfr. As I said, I tried this too. And usin mkv or webm instead of mp4 make no difference.
ffmpeg -y -i kollision.mp4 -vf boxblur=10:1 -vsync 0 -copyts blur.mp4 gives the output: ffmpeg version 2021-01-24-git-1775688292-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev6, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint libavutil 56. 63.101 / 56. 63.101 libavcodec 58.117.101 / 58.117.101 libavformat 58. 65.101 / 58. 65.101 libavdevice 58. 11.103 / 58. 11.103 libavfilter 7. 96.100 / 7. 96.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'kollision.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.20.100 Duration: 00:00:02.32, start: 0.000000, bitrate: 908 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720, 903 kb/s, SAR 1:1 DAR 16:9, 15.10 fps, 25 tbr, 25641 tbn, 30 tbc (default) Metadata: handler_name : VideoHandler vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Press [q] to stop, [?] for help [libx264 @ 000001e4beec4300] using SAR=1/1 [libx264 @ 000001e4beec4300] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 000001e4beec4300] profile High, level 3.1, 4:2:0, 8-bit [libx264 @ 000001e4beec4300] 264 - core 161 r3033 0d754ec - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=15 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'blur.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.65.101 Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 15 fps, 15360 tbn (default) Metadata: handler_name : VideoHandler vendor_id : [0][0][0][0] encoder : Lavc58.117.101 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame= 1 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x frame= 35 fps=0.0 q=-1.0 Lsize= 76kB time=00:00:00.00 bitrate=N/A speed= 0x video:75kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.724296% [libx264 @ 000001e4beec4300] frame I:1 Avg QP:17.73 size: 31047 [libx264 @ 000001e4beec4300] frame P:9 Avg QP:18.91 size: 2944 [libx264 @ 000001e4beec4300] frame B:25 Avg QP:22.27 size: 728 [libx264 @ 000001e4beec4300] consecutive B-frames: 2.9% 5.7% 0.0% 91.4% [libx264 @ 000001e4beec4300] mb I I16..4: 16.4% 76.6% 7.0% [libx264 @ 000001e4beec4300] mb P I16..4: 0.3% 1.6% 0.0% P16..4: 16.6% 3.8% 1.7% 0.0% 0.0% skip:75.9% [libx264 @ 000001e4beec4300] mb B I16..4: 0.0% 0.3% 0.0% B16..8: 10.6% 0.4% 0.0% direct: 0.1% skip:88.5% L0:47.2% L1:51.5% BI: 1.3% [libx264 @ 000001e4beec4300] 8x8 transform intra:77.9% inter:95.7% [libx264 @ 000001e4beec4300] coded y,uvDC,uvAC intra: 74.2% 64.9% 6.5% inter: 2.1% 2.4% 0.0% [libx264 @ 000001e4beec4300] i16 v,h,dc,p: 2% 47% 2% 49% [libx264 @ 000001e4beec4300] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 48% 6% 3% 5% 4% 8% 5% 5% [libx264 @ 000001e4beec4300] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 42% 5% 2% 6% 4% 6% 2% 2% [libx264 @ 000001e4beec4300] i8c dc,h,v,p: 39% 36% 9% 15% [libx264 @ 000001e4beec4300] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 000001e4beec4300] ref P L0: 71.5% 4.0% 18.4% 6.2% [libx264 @ 000001e4beec4300] ref B L0: 74.8% 23.8% 1.4% [libx264 @ 000001e4beec4300] ref B L1: 95.9% 4.1% [libx264 @ 000001e4beec4300] kb/s:259.71 _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".