The following sections describe the configuration options that you can set for the WMF Media Plugin in your Project Settings. Quality Measurementĭuring development and testing the modern SSIM measurement method was used to test the accuracy of the NotchLC against raw lossless sources.Please see the Playing Live Video Captures page for an example guide on working with capture devices. Unlike other mainstream GPU codecs, NotchLC uses variable block size and variable control point bit levels to provide extra detail in areas of the image that need it, while allowing greater compression in areas of flatter colours. And as a general rule of thumb Notch tends to be 30% larger than HAPQ (for a significant quality uplift). Typically our users are seeing compression ratios between 5:1 and 8:1 when compared to raw video. These defined coefficients of error give confidence in the quality of the resulting encoded video. The encoder then searches for best fit compression in each block that meets this quality threshold. When encoding you set a quality level, which is essentially an allowable ‘error level’ in encode.
Rather than specify target bitrates and end up with undetermined quality outcomes, NotchLC takes the reverse approach. This is compared to HAP & DXV that encode colour data in RGB at bit depths of 5 or 6 bits per channel (total 16 bits per pixel). 8bits are assigned to each of the U & V channels. 12bits of depth are assigned to luma data, as in many scenarios this is where bit depth is most perceivable. NotchLC breaks colour data down into luma and chroma (YUV). The LC in NotchLC stands for Luma & Chroma. NotchLC plugins for Adobe CC and Quicktime & AVI are available as free downloads from the Notch website. All three have 10bit or higher depth and are only moderately space demanding. In an independently conducted test of 10bit codecs, design and technology house dandelion + burdock says:Ĭombining all the above quality and speed factors, we can strongly suggest ProRes 4444 and NotchLC (best and optimal) as equivalent intermediate codecs. 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. NotchLC is now available for Adobe CC, with plugins for After Effects, Premiere and Adobe Media Encoder Why did we make this?
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