Rainer M. Krug-2 wrote > Hi > > First poster, o apologies for any forgotten info. > > > I have a video with the following metadata: > > ``` > $ ffprobe ./1.pre-processed.data/bemovi/20210208_00097.avi > ffprobe version 4.3.2 Copyright (c) 2007-2021 the FFmpeg developers > built with Apple clang version 12.0.0 (clang-1200.0.32.29) > configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.2_4 --enable-shared > --enable-pthreads --enable-version3 --enable-avresample --cc=clang > --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls > --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d > --enable-libmp3lame --enable-libopus --enable-librav1e > --enable-librubberband --enable-libsnappy --enable-libsrt > --enable-libtesseract --enable-libtheora --enable-libvidstab > --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 > --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma > --enable-libfontconfig --enable-libfreetype --enable-frei0r > --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb > --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq > --enable-libzimg --disable-libjack --disable-indev=jack > --enable-videotoolbox > libavutil 56. 51.100 / 56. 51.100 > libavcodec 58. 91.100 / 58. 91.100 > libavformat 58. 45.100 / 58. 45.100 > libavdevice 58. 10.100 / 58. 10.100 > libavfilter 7. 85.100 / 7. 85.100 > libavresample 4. 0. 0 / 4. 0. 0 > libswscale 5. 7.100 / 5. 7.100 > libswresample 3. 7.100 / 3. 7.100 > libpostproc 55. 7.100 / 55. 7.100 > Input #0, avi, from './1.pre-processed.data/bemovi/20210208_00097.avi': > Metadata: > encoder : Lavf58.45.100 > Duration: 00:00:12.50, start: 0.000000, bitrate: 91831 kb/s > Stream #0:0: Video: png (PNG / 0x20474E50), pal8(pc), 2048x2048, > 92565 kb/s, 10 fps, 10 tbr, 10 tbn, 10 tbc > Metadata: > title : FileAVI write > ``` > > In addition, I have 125 images (jpg, but I can as easily create them as > png) which contain some labelling of the individual frames. The particles > are moving, the images are different. > > Now I want to overlay the images over the corresponding frames. > > What is the easiest to do this? I could convert them to a move, then > overlay these two, but I have the feeling I could do this in one step? > > Any suggestions? > > Thanks, > > Rainer
Overlay them where? What x,y position? What is the dimension of your jpg sequence? jpg does not specify an alpha channel (transparency information). If you overlay the jpg sequence over the base video layer , and assuming they are the same dimensions, you will "cover up" the video layer entirely . You will not see the video, only the jpg sequence When you say you can "create them as PNG", does the original source have an alpha channel? -- Sent from: http://ffmpeg-users.933282.n4.nabble.com/ _______________________________________________ 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".
