From nhwcodec at gmail.com Thu Jan 3 14:13:17 2019 From: nhwcodec at gmail.com (Raphael Canut) Date: Thu, 3 Jan 2019 15:13:17 +0100 Subject: [theora] NHW Project - good quality improvement & encoding speed improvement Message-ID: Hello, Just a quick message to let you know that I have made good quality improvements for very high and extreme compression of the NHW Project (-l8 to -l15 quality settings).The NHW Project starts to be really competitive with x265 (HEVC) at these very high compression ratios.I even find the NHW Project visually better than x265 (HEVC) for mid and high compression! I have also improved encoding speed (C optimizations). More at: http://nhwcodec.blogspot.com/ We can still save 2.5KB per .nhw compressed files. I wanted to correct my last speed measurement, with the same level of optimization, the NHW Project is at least 20x faster to encode (bpgenc -m 0) or at least 52x time faster to encode (bpgenc -m 7) and at least 15x faster to decode than x265 BPG (optimized HEVC). Many thanks and Happy New Year!!! Cheers, Raphael -------------- next part -------------- An HTML attachment was scrubbed... URL: From nhwcodec at gmail.com Sun Jan 27 19:53:25 2019 From: nhwcodec at gmail.com (Raphael Canut) Date: Sun, 27 Jan 2019 20:53:25 +0100 Subject: [theora] new -l16 "extreme" compression quality setting Message-ID: Hello, I have added a new -l16 "extreme" compression quality setting to the NHW Project. This new -l16 quality setting is surprisingly good actually, because I find it better on some images than -l15 quality setting whereas files size is smaller.I notably find this new -l16 quality setting better than x265 (HEVC). More at: http://nhwcodec.blogspot.com/ We can still save 2.5KB per .nhw compressed file. I however know that this work is hopeless because the industry will soon standardize AOM AV1 (AVIF) as the new image compression codec.I have also read on twitter that the new JPEG XL standard will be based on AOM AV1.I could not test AOM AV1 but I guess that if the Alliance for Open Media never answered me it's because AOM AV1 is better than the NHW Project. Anyway I wanted to remind the advantages of the NHW Project, it is visually better than x265 (HEVC), it is royalty-free, and it is a lot faster to encode/decode than x264, x265, AOM AV1,... If you think there is a niche where the NHW Project would shine, please do not hesitate to let me know. Many thanks! Cheers, Raphael -------------- next part -------------- An HTML attachment was scrubbed... URL: