#Ffmpeg extract frames png software#

If you have 1280x720 4:2:0, this means the U,V planes which contain the color information are only 640x360 in dimensions. How ffmpeg or avisynth is converting YUV 420 to RGB is different than the method you used for taking the 'original' screenshot. There is a difference in chroma upsampling method. It's not really the 'original' you're looking at a RGB converted representation of the original.

#Ffmpeg extract frames png software#

How are you taking the 'original' screenshot ? What software or algorithm ? Video:29757kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Unfortunately, despite the username that reddit assigned me, I do not.PS D:fmpegin> ffmpeg -i 'in2.mp4' -r '1.00' -vf scale=out_color_matrix=bt709 'frames_%05d.png'įfmpeg version N-91399-g9f0077cc03 Copyright (c) 2000-2018 the FFmpeg developersĬonfiguration: -enable-gpl -enable-version3 -enable-sdl2 -enable-bzlib -enable-fontconfig -enable-gnutls -enable-iconv -enable-libass -enable-libbluray -enable-libfreetype -enable-libmp3lame -enable-libopencore-amrnb -enable-libopencore-amrwb -enable-libopenjpeg -enable-libopus -enable-libshine -enable-libsnappy -enable-libsoxr -enable-libtheora -enable-libtwolame -enable-libvpx -enable-libwavpack -enable-libwebp -enable-libx264 -enable-libx265 -enable-libxml2 -enable-libzimg -enable-lzma -enable-zlib -enable-gmp -enable-libvidstab -enable-libvorbis -enable-libvo-amrwbenc -enable-libmysofa -enable-libspeex -enable-libxvid -enable-libaom -enable-libmfx -enable-amf -enable-ffnvcodec -enable-cuvid -enable-d3d11va -enable-nvenc -enable-nvdec -enable-dxva2 -enable-avisynth If you have a penchant for math and gte/mod expressions, you can write an expression which selects multiple frames at once.

Something like the following to select just the 50th frame (I have not tested, and given how far you have got so far, it sounds like you'll get the idea with the docs). $ ffmpeg -i 'wings.mp4' -ss '00:00:22.000' -frames:v 1 -f 'image2' -strftime 1 'wings_%H-%M-%S.png'Īlternatively, if you want to work in frame numbers rather than time, the select filter can be used to grab individual frame numbers. If you are specifying them with a timestamp, save them with a timestamp. OP - Would it be easier if you use strftime in the filename to include the timestamp? See. What I want to do is extract the frames at the specific timecodes to a folder of my choice. accuracy can be improved by specifying -ss in HH:MM:SS.mmm so that OP can use milliseconds if needed.