ffmpeg convert h264 video to av1

To convert an H.264 video to AV1 using ffmpeg, you can use the following command:

ffmpeg -i input.mp4 -c:v libaom-av1 -crf 30 -b:v 0 -strict experimental output.av1

Explanation of the command:

• -i input.mp4: specifies the input video file.
• -c:v libaom-av1: sets the video codec to libaom-av1, which is the AV1 encoder in ffmpeg.
• -crf 30: sets the constant rate factor (CRF) to 30, which controls the video quality. Lower values result in better quality but larger file sizes.
• -b:v 0: sets the video bitrate to 0, which means that the encoder will use a variable bitrate based on the CRF value.
• -strict experimental: enables experimental features in the AV1 encoder.
• output.av1: specifies the output file name with the .av1 extension.

Note that AV1 encoding is computationally intensive and may take a long time to complete, especially for high-resolution videos