Hi, I am comparing the compression efficiency of H.264 and H.265 codecs. I have studied many research papers showing that the compression efficiency of H.265 is much better than H.264.
But I am not able to get the same results. I am trying to compress 664 YUV 4:2:0 video sequence with ffmpeg under H.264 and H.265 codecs and got the resultant videos of following sizes: H.264: 5.58 MB H.265: 6.66 MB I am using the following commands for compression: H.264: ffmpeg -i video.y4m -c:v libx264 -an -strict experimental -preset slow -CRF 30 - b:v 800k -f mp4 output.mp4 and for H.265: ffmpeg -i video.y4m -c:v libx265 -an -strict experimental -preset slow -CRF 30 - b:v 800k -f mp4 output1.mp4 Kindly tell me what is the issue. Waiting for the kind response. Thank you. _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
