matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'libx264'. matched as option 'pix_fmt' (set pixel format) with argument 'yuv420p'. matched as input file with argument '/Users/yotamlaufer/Work/video-renderer-processor/tmp/output/M11SvDtPBhA'. matched as input file with argument 'pipe:'. matched as option 'f' (force format) with argument 'image2pipe'. matched as option 'y' (overwrite output files) with argument '1'.įFMPEG STDERR: matched as AVOption 'framerate' with argument '60'. matched as option 'loglevel' (set logging level) with argument 'debug'. So my question is: how I can pipe base64 strings into stdin?įfmpeg -loglevel debug -y -framerate 60 -f image2pipe -i pipe: -i /Users/yotamlaufer/Work/video-renderer-processor/tmp/output/M11SvDtPBhA -pix_fmt yuv420p -vcodec libx264 -preset veryslow -profile main -qp 1 -shortest -movflags +faststart -tune animation /Users/yotamlaufer/Work/video-renderer-processor/tmp/output/M11SvDtPBhA.mp4įfmpeg version 2.6.3 Copyright (c) 2000-2015 the FFmpeg developersīuilt with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)Ĭonfiguration: -prefix=/usr/local/Cellar/ffmpeg/2.6.3 -enable-shared -enable-pthreads -enable-gpl -enable-version3 -enable-hardcoded-tables -enable-avresample -cc=clang -host-cflags= -host-ldflags= -enable-libx264 -enable-libmp3lame -enable-libvo-aacenc -enable-libxvid -enable-libvorbis -enable-vda On a single image I managed to use a base64 string the same way it is specified here: įfmpeg -i "data:image/gif base64,R0lGODdhCAAIAMIEAAAAAAAA//8AAP//AP///////////////ywAAAAACAAIAAADF0gEDLojDgdGiJdJqUX02iB4E8Q9jUMkADs=" smiley.png This is the command I use now that works very well with binary images:įfmpeg -y -framerate 60 -f image2pipe -i pipe: -i -pix_fmt yuv420p -vcodec libx264 -preset veryslow -profile main -qp 1 -shortest -movflags +faststart -tune animation I would like to pipe the base64 string into ffmpeg, skipping the conversion stage on my runtime to see if that optimizes the system but I am unable to get it to work. This conversion takes some time slowing down my process significantly. The host that captures the images returns them as a base64 string, which I then convert to a binary image (png or jpeg) and pipe to ffmpeg. This works very well and I am happy with the result.
I have a routine that captures a stream of images, pipes them to ffmpeg and outputs a video file. Consider that I have used ffmpeg in the past, but I am certainly still a newbie.
I’ve been searching for an answer for quite some time and hopefully you will have the answer for me.
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