NotchLC brings the equivalent of 10bit accuracy in a scrubbable codec that is extremely fast to encode and decode, with a compression ratio of 8:1 to 5:1. So, we created NotchLC a codec capable of being used as both an intermediary codec as well as a playback codec. Simply put, we were dissatisfied with the lack of high-quality codecs for content creators that exploited the power of modern GPUs.
Sadly ffmpeg doesn’t yet support the HapQ Alpha format.NotchLC is now available for Adobe CC, with plugins for After Effects, Premiere and Adobe Media Encoder Why did we make this?. Hap Alpha requires straight alpha (not pre-multipled). You can also add the -chunks 4 option which will encode each frame into 4 chunks so the decoding work can be split across multiple threads, resulting in faster decoding as long as the disk can keep up. ffmpeg -i input.mov -vcodec hap -format hap_q output-hap.mov. ffmpeg -i input.mov -vcodec hap -format hap_alpha output-hap.mov. ffmpeg -i input.mov -vcodec hap -format hap output-hap.mov. In 2020 Jokyo introduced their fast and high quality Hap encoder with plugins for Adobe After Effects, Premiere Pro etc: FFMPEGĪlternatively you can use a recent build of FFMPEG with the following command-lines: Ideally a width with a multiple of 16 is best for performance (aligned copy). Width and height must be multiple of a 4 for Hap encoded videos in AVPro Video. Hap, Hap Alpha, HapQ, HapQ Alpha and HapR are supported. Amount of frames to decoder before starting playback, less frames for less latency in seeking, more frames for less chance of buffer emptying too quickly. Less threads for less latency in playback operations (seeking, playing etc), more threads for better performance. Maximum number of threads to use for parallel frame decoding. 
If your files are high bit-rate (above 4Gbps) then use this option otherwise the file will not load. On Windows some options are exposed for Hap and NotchLC decoding:Įnables our custom MOV parser to be used, which is useful for Hap and NotchLC codecs, as a Microsoft parser is not able to open very high bit-rate MOV files. We have created a fix for this which is activated by enabled "Use Custom MOV Parser" in Platform Specific >Windows options.
There is currently a bug in Windows that prevents MOV files with a bitrate of more than 4Gbps from playing.
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