Express VPN Best for privacy. Number of IP addresses: 30,000 Number of servers: 3,000+ 3 months free with 1-year plan. Jan 13, 2010. Mar 25, 2013. ProRes XQ (or ProRes 4444 XQ) was released in June 2014 as an expansion to the already very robust ProRes 4444. The new codec kept all the standard 4444 features post and VFX work have come to love (lossless 12 bit color and 16 bit with alpha), but has expanded the data rate to a staggering 396 MB/s at 1080p24 (vs 264 MB/s with 4444). We still can't export in prores 444 xq flavor from after effects. There used to be a workaround by copying the prores components into the quicktime. Adobe Support Community. Copying FCP X included Prores codecs into Quicktime folder (yes, I'm in Mac) does not work anymore!!!
[ Updated with new information about the Rec. 2020 color space, and how ProRes 4444 XQ works. ]
Today, Apple released support for a new member of the ProRes family of codecs: ProRes 4444 XQ. This is a new, very high-quality codec, specifically designed for VFX work.
WHAT IS IT?
According to a white paper released this month from Apple:
Apple ProRes 4444 XQ: The highest-quality version of Apple ProRes for 4:4:4:4 image sources (including alpha channels), with a very high data rate to preserve the detail in high-dynamic-range imagery generated by today’s highest-quality digital image sensors. Apple ProRes 4444 XQ preserves dynamic ranges several times greater than the dynamic range of Rec. 709 imagery—even against the rigors of extreme visual effects processing, in which tone-scale blacks or highlights are stretched significantly. Like standard Apple ProRes 4444, this codec supports up to 12 bits per image channel and up to 16 bits for the alpha channel. Apple ProRes 4444 XQ features a target data rate of approximately 500 Mbps for 4:4:4 sources at 1920 x 1080 and 29.97 fps.
Again, quoting from Apple’s white paper:
Traditionally, digital images have been limited to 8-bit samples. In recent years the number of professional devices and acquisition techniques supporting 10-bit and even 12-bit image samples has increased. 10-bit imagery is now often found in 4:2:2 video sources with professional digital (SDI, HD-SDI or even HDMI) outputs. 4:2:2 video sources rarely exceed 10 bits, but a growing number of 4:4:4 image sources claim 12-bit resolution, though with sensor-derived images the least significant one or two bits may have more noise than signal. 4:4:4 sources include high-end film scanners and film-like digital cameras and can include high-end computer graphics.
Apple ProRes 4444 XQ and Apple ProRes 4444 support image sources up to 12 bits and preserve alpha sample depths up to 16 bits. All Apple ProRes 422 codecs support up to 10-bit image sources, though the best 10-bit quality is obtained with the higher‑bit-rate family members—Apple ProRes 422 and Apple ProRes 422 HQ. (Note: Like Apple ProRes 4444 XQ and Apple ProRes 4444, all Apple ProRes 422 codecs can in fact accept image samples even greater than 10 bits, although such high bit depths are rarely found among 4:2:2 or 4:2:0 video sources.)
ALPHA CHANNELS
Alpha Channels store the transparency information in a clip. Unlike other members of the ProRes family, both Apple ProRes 4444 and ProRes 4444 XQ store alpha data. And, they store it in a mathematically lossless manner.
From Apple’s white paper:
Alpha values are essentially numeric data that specify how to blend, or composite, a foreground image into a background image. For this reason, Apple ProRes 4444 XQ and Apple ProRes 4444 encode alpha values exactly rather than approximately. This kind of exact encoding is called “lossless” (or sometimes “mathematically lossless”) compression. It uses different encoding techniques from those used by the Apple ProRes codec family for RGB or Y’CBCR pixel values, where approximate encoding is acceptable as long as differences from the original are not visible to the viewer and do not affect processing. The Apple ProRes 4444 XQ and Apple ProRes 4444 codecs losslessly encode alpha channel values of any bit depth up to and including 16 bits.
In summary, the Apple ProRes 4444 XQ and Apple ProRes 4444 codecs can be considered “visually lossless” for encoding the Y’CBCR or RGB pixel values intended for viewing, but “mathematically lossless” for encoding the alpha values that specify compositing. As a result, the degree of quality or fidelity is never a question for Apple ProRes 4444 alpha channels because the decoded data always matches the original perfectly.
Teamspeak 3 client download 64 bit. DATA RATES
ProRes 4444 XQ is not a small file. It is designed for the highest possible quality, while still providing reduced file size when compared to an uncompressed source file.
According to Apple, both 1080i/30 and 720p/60 files require a data transfer rate of about 62 MB/sec, and use about 223 GB to store an hour of material. Other frame rates and images sizes will be somewhat different.
You can download the entire white paper from Apple here.
UPDATE: JULY 1, 2014
A reader asked about the relationship between ProRes 4444 XQ and Rec. 2020.
Rec. 2020 is a color space while ProRes is a codec. ProRes is capable of handling a Rec. 2020 signal, since ProRes can accommodate a wide range of color spaces.
Also, wide color gamut (like Rec. 2020) is different from high dynamic range, as Rec. 2020 is designed for reproducing a wider range of colors than Rec. 709. For those people working with higher dynamic range footage, the increased data rate of ProRes 4444 XQ is beneficial for capturing the superior tonal range of HDR material like Log C. This is why ARRI is offering ProRes 4444 XQ recording in high-end configurations of the the ALEXA camera, which was announced yesterday.
Install Prores Codec Windows 10
UPDATE: JULY 15, 2014
Since I first wrote this article, I’ve learned more about ProRes 4444 XQ. It is principally designed for pro cameras that record High Dynamic Range (HDR) video, because the higher data rate of the format preserves the detail in these recordings. It is currently in use as a camera-codec, for example as part of the ARRI ALEXA. But it has benefits all the way through the video post production pipeline — especially for color grading and visual effects as I describe below.
ProRes 4444 XQ records color data — the red, green, and blue values in an image — with greater accuracy; that is, more decimal places. This precision is necessary when you are shooting a clip that you plan to alter with extreme color adjustments in post.
Here’s a simple analogy to illustrate the benefits of ProRes 4444 XQ. Let’s take a pixel recorded in AVCHD (an 8-bit codec) and compare it to a pixel recorded in ProRes 4444 XQ. Say the “true” source pixel value is 7.499, and you are going to apply an adjustment that effectively amplifies the value by 10x.
With lower bit-rate compression like AVCHD, the original 7.499 pixel value might be represented as 7. After the 10x effect is applied, the value becomes 70.
With high bit-rate compression like ProRes 4444 XQ, the original 7.499 pixel value might be 7.5. After the 10x effect is applied, the value becomes 75, which is much closer to the final value of 74.99 that represents perfect precision. Samsung galaxy kies mac download. Here is a summary:
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With AVCHD, the difference in starting values between 7 and 7.499 might not be noticeable. But after the effect is applied, the difference between 70 and 74.99 may become significant. With ProRes 4444 XQ, the starting value is so accurate that even after the effect is applied, the error in the final value remains very small.
Because we started with more decimal places in ProRes 4444 XQ, we ended up with more accurate color at the end. This is the benefit that shooting ProRes 4444 XQ provides – more information is recorded at the beginning to allow more flexibility in editing at the end.
As always, let me know what you think.
Larry
All Apple ProRes codecs support all frame sizes (including SD, HD, 2K, 4K, and 5K) at full resolution. The data rates vary based on codec type, image content, frame size, and frame rate. Apple ProRes includes the following formats.
Download music off ipod mac. To bring the same performance, quality, and ease of use introduced by Apple ProRes to raw media, use Apple ProRes RAW. Learn more about ProRes RAW.
Apple ProRes 4444 XQ*Prores Codec Download For Windows
Apple ProRes 4444 XQ is the highest-quality version of Apple ProRes for 4:4:4:4 image sources (including alpha channels). This format has a very high data rate to preserve the detail in high-dynamic-range imagery generated by today’s highest-quality digital image sensors. Apple ProRes 4444 XQ preserves dynamic ranges several times greater than the dynamic range of Rec. 709 imagery. This holds true even against the rigors of extreme visual effects processing in which tone-scale blacks or highlights are stretched significantly. Like standard Apple ProRes 4444, this codec supports up to 12 bits per image channel and up to 16 bits for the alpha channel. Apple ProRes 4444 XQ features a target data rate of approximately 500 Mbps for 4:4:4 sources at 1920x1080 and 29.97 fps.
ProRes 4444 XQ is supported on OS X Mountain Lion v10.8 or later.
Apple ProRes 4444*
Apple ProRes 4444 is an extremely high-quality version of Apple ProRes for 4:4:4:4 image sources (including alpha channels). This codec features full-resolution, mastering-quality 4:4:4:4 RGBA color, and visual fidelity that is perceptually indistinguishable from the original material. Apple ProRes 4444 is a high-quality solution for storing and exchanging motion graphics and composites, with excellent multigeneration performance and a mathematically lossless alpha channel of up to 16 bits. This codec features a remarkably low data rate compared to uncompressed 4:4:4 HD. It has a target data rate of approximately 330 Mbps for 4:4:4 sources at 1920x1080 and 29.97 fps. It also offers direct encoding of and decoding to both RGB and Y’CBCR pixel formats.
Apple ProRes 422 HQ
Apple ProRes 422 HQ is a higher-data-rate version of Apple ProRes 422 that preserves visual quality at the same high level as Apple ProRes 4444 but for 4:2:2 image sources. With widespread adoption across the video post-production industry, Apple ProRes 422 HQ offers visually lossless preservation of the highest-quality professional HD video that a single-link HD-SDI signal can carry. This codec supports full-width, 4:2:2 video sources at 10-bit pixel depths, while remaining visually lossless through many generations of decoding and reencoding. The target data rate is approximately 220 Mbps at 1920x1080 and 29.97 fps.
Apple ProRes 422
Apple ProRes 422 is a high-quality compressed codec offering nearly all the benefits of Apple ProRes 422 HQ, but at 66 percent of the data rate for even better multistream, real-time editing performance. The target data rate is approximately 147 Mbps at 1920x1080 and 29.97 fps.
Apple ProRes 422 LT
Apple ProRes 422 LT is a more highly compressed codec than Apple ProRes 422, with roughly 70 percent of the data rate and 30 percent smaller file sizes. This codec is perfect for environments where storage capacity and data rate are at a premium. The target data rate is approximately 102 Mbps at 1920x1080 and 29.97 fps.
Apple ProRes 422 Proxy
Apple ProRes 422 Proxy is an even more highly compressed codec than Apple ProRes 422 LT, intended for use in offline workflows that require low data rates but full-resolution video. The target data rate is approximately 45 Mbps at 1920x1080 and 29.97 fps.
* Apple ProRes 4444 and Apple ProRes 4444 XQ are ideal for the exchange of motion graphics media because they are virtually lossless. They are also the only Apple ProRes codecs that support alpha channels.
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