In this part 2 of FFmpeg encoding comparisons I look at x265 presets, their speed and. After the build completes, you’ll end up with the binaries inside ffmpeg-install folder (provided to the prefix parameter in configure). From the definition, we got to know x265 is a successor to x264. Obviously you can modify the parameters above as it fits your needs. configure -enable-static -disable-shared -disable-debug -disable-doc -disable-x86asm -enable-gpl -enable-libx264 -prefix=/Users/someuser/ffmpeg-install The last think you need to do, is to configure and build it. Now, download FFmpeg source codes from the following link and extract them somewhere on your computer. Here is what you need to run from Terminal: git clone Start by getting x264 source codes, configuring and then building them. This is why I thought I should gather them up into a single post for easier reference later on. If I use -vcodec libx264rgb, instead of -vcodec libx264, that fixes the issue, but I need libx264 so the output video can work on Chrome and other media players.I had to build FFmpeg with x264 support on macO statically, so I had to look around for a bunch of scattered commands.

However, if you check the same colour on the output MP4s, the colour matches on the original PNG, but not the doubleHeight version, which is R=22,G=66,B=12. If you check the dark green colour on the original PNG images, using an eye dropper tool, they're both R=25,G=74,B=15. I've checked the resulting video in both Media Player Classic and Chrome/Firefox. The double height version is darker than it should be. With this 'original.png' ('fC2Tj') image:įfmpeg.exe -i doubleHeight.png -crf 0 -vcodec libx264 output.mp4

I want to convert numerous frames to make an animation, but thankfully, I've simplified the problem to even using a single image to make a '1 frame video' for the purposes of debugging.įfmpeg.exe -i original.png -crf 0 -vcodec libx264 output.mp4 It's incredibly easy to replicate thankfully. I'm a beginner to ffmpeg so I'm having a hard time believing that a utility so old and so widely used has such a fundamental bug, but the evidence is staring me in the face and leads me to no other conclusion.

Ffmpeg x264