gerknow.blogg.se - may 2023

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FFmpeg recognizes what's inside the mp4 container, so you don't need to provide parameters for the input.įfmpeg -i input.mp4 -f rawvideo -vcodec rawvideo -pix_fmt yuv420p -s 1920x1080 -r 25 rawvideo.DigiCAP and iWedia collaborate to create first ATSC 3.0-Hybrid HDMI dongle Then output.mp4 is your new container to store your data in.Īfter you are done in Adobe Premiere, you can convert it back to a YUV file by inverting allmost all parameters.0 is best, 51 is worst quality in our example. With -qp 0 you set the maximum quality.The -preset ultrafast setting is only speeding up the compression so your file size will be bigger than setting it to veryslow.With -c:v libx264 you set the encoder to encode the video to libx264.With -i inputfile.yuv you set your input file.With -vcodec rawvideo you set the input file as not compressed.

With -f rawvideo you set the input format to a raw video container.

Then we get this command to do your compression.įfmpeg -f rawvideo -vcodec rawvideo -s 1920x1080 -r 25 -pix_fmt yuv420p -i inputfile.yuv -c:v libx264 -preset ultrafast -qp 0 output.mp4Ī little explanation of all other parameters:

What is your framesize? In my example I will use -s 1920x1080.

What encoder do you want to use? The libx264 (H.264) encoder is a great one for lossless compression.

What is the framerate? In my example I will use -r 25 fps.

You can type ffmpeg -pix_fmts to get a list of all available formats.

What type of the YUV pixel format are you using? The most common format is YUV4:2:0 planar 8-bit ( YUV420p).

There are some parameters you have to fill in yourself before starting to convert: Then after installing you can start converting by running a command with parameters. So Adobe Premiere doesn't know what the size is, what framerate ect.įirst make sure you downloaded the FFmpeg command line tool. It is normal that you can't open that raw video file since it is just raw data in one giant file, without any headers.