Wednesday, December 02, 2020

50 Cool Raspberry Pi Projects

 

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50 Cool Raspberry Pi Projects for December 2020

Anatol Locker
1 day ago

Looking for new applications for your Raspberry Pi 4? Check our list of 50 cool Raspberry Pi projects which are actually useful and fun.

The Raspberry Pi 4 is the ideal “brain” for a multitude of DIY projects. Reliable, hackable, open-source and energy-efficient, this bare board is a versatile tool.

Offering a little extra oompf of computing power over its predecessors, the Raspberry Pi 4 is perfectly capable as a 4K media center or desktop computer, but it doesn’t stop there. Here are 50 cool Raspberry Pi projects to make the most of this remarkable little board.

If you own a 3D printer, we’ve got even more Raspberry Pi projects that you might want to take a look at.

Friday, November 27, 2020

 

Intel Quick Sync Video

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Intel Quick Sync Video is Intel's brand for its dedicated video encoding and decoding hardware core. Quick Sync was introduced with the Sandy Bridge CPU microarchitecture on 9 January 2011 and has been found on the die of Intel CPUs ever since.

The name "Quick Sync" refers to the use case of quickly transcoding ("converting") a video from, for example, a DVD or Blu-ray Disc to a format appropriate to, for example, a smartphone. This becomes critically important in the professional video workplace, in which source material may have been shot in any number of video formats, all of which must be brought into a common format (commonly H.264) for inter-cutting.

Unlike video encoding on a CPU or a general-purpose GPU, Quick Sync is a dedicated hardware core on the processor die. This allows for much more power-efficient video processing.

Hardware decoding and encoding[edit]

Support for Quick Sync hardware accelerated decoding of H.264, MPEG-2, and VC-1 video is widely available. One common way to gain access to the technology on Microsoft Windows is by use of the free ffdshow filter. Some other free software like VLC media player (since version 2.1.0 "Rincewind") supports Quick Sync as well. Many commercial applications also benefit from the technology today, including CyberLink PowerDVD, CyberLink PowerDirector and MacroMotion Bogart "gold" edition.

According to the ffdshow documentation, Quick Sync has very low CPU utilization while being about twice as fast as libavcodec.[23]

Support for hardware-assisted media encoding tailored for Quick Sync is widely available. Examples of such software with Quick Sync support during encoding processes are Emby Media Server,[24] Plex Media Server,[25] Badaboom Media Converter, CyberLink MediaShow, CyberLink MediaEspresso, ArcSoft MediaConverter, MAGIX Video Pro X, Pinnacle Studio (since version 18), Roxio ToastRoxio CreatorXSplit Broadcaster,[26] XSplit Gamecaster[27] (all commercial) and projects like HandBrake,[28][29] Open Broadcaster Software[30] or applications for operation with a video content entering in Adobe CC2018.

The following table shows fixed-function encode/decode support for various Intel platforms:[31][32]

Fixed-function Quick Sync Video format support
CantigaClarkdale / ArrandaleSandy BridgeIvy Bridge / HaswellBroadwellBraswell / Cherry TrailSkylakeApollo Lake[33]Kaby Lake / Gemini Lake[34] / Coffee Lake[35] / Comet LakeIce Lake[36]Tiger Lake / Rocket Lake[37]
MPEG-2Decode onlyDecode onlyDecode onlyYesYesYesYesYesYesYesYes
AVCNoDecode onlyYesYesYesYesYesYesYesYesYes
VC-1NoNoDecode onlyDecode onlyDecode onlyDecode onlyDecode onlyDecode onlyDecode onlyDecode onlyDecode only
JPEGNoNoNoDecode onlyDecode onlyYesYesYesYesYesYes
VP8NoNoNoNoDecode onlyYesYesYesYesYesNo
HEVCNoNoNoNoNoDecode onlyYesYesYesYesYes
HEVC 10-bitNoNoNoNoNoNoNoDecode only (8K)Yes[38]YesYes
HEVC 12-bitNoNoNoNoNoNoNoNoNoNoDecode only
VP9NoNoNoNoNoNoNoDecode only (4K)Partial (Encoding on Linux only)[39]YesYes
VP9 10-bitNoNoNoNoNoNoNoNoDecode onlyYes[40]Yes
VP9 12-bitNoNoNoNoNoNoNoNoNoNoDecode only
AV1NoNoNoNoNoNoNoNoNoNo[41]Decode only
AV1 10-bitNoNoNoNoNoNoNoNoNoNoDecode only
AV1 12-bitNoNoNoNoNoNoNoNoNoNoNo
EVCNoNoNoNoNoNoNoNoNoNoNo
VVCNoNoNoNoNoNoNoNoNoNoNo

Certain low-end and high-end parts (including multi-socket Xeons and some Extreme Edition CPUs expected to be used with a dedicated GPU) do not contain the hardware core to support Quick Sync.

Thursday, November 26, 2020

GPU Benchmarks and Hierarchy: Graphics Cards Ranked


GPU Benchmarks and Hierarchy: Graphics Cards Ranked

Friday, May 08, 2020

The AMD 3rd Gen Ryzen Deep Dive Review

3700X and 3900X Raising The Bar




Power consumption of the new Ryzen 3900X and 3700X are of particular interest because it’s a very key aspect of the new generation chipsets, and AMD promises some extremely large improvements thanks to the new 7nm process node as well as the optimised chiplet design.
When comparing the single-chiplet Ryzen 3700X to the previous generation Ryzen 2700X, we’re seeing quite some dramatic differences in core power consumption. In particular power consumption at each chip’s respective peak frequency is notably different: Although the new 3700X has a 100MHz higher clock speed and thus is further up the exponential power curve, it manages to showcase 32% lower absolute power than the 2700X.
We have to remember that we’re talking about overall absolute power, and not efficiency of the chip. When taking actual performance into account through the higher clock as well as Zen2’s increased performance per clock, the Performance/W figures for the new 3700X should be significantly higher than its predecessor.
What is curious about the new chip is just how closely it follows its power limitations. The new boosting algorithm on the Ryzen 3 series is a particularly “opportunistic” one that will go as high in frequencies as it can go within its constraints, no matter the amount of CPU cores.

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