Selecting the right video encoder for live streaming is highly dependent on your needs. So, I did some research and here’s what I learned.Posted: (2 days ago) Choosing the Best Video Encoders for YouTube. High-End Encoding Latency 150ms Chroma Depth 4:2:0 4:2:2 (10bit) Resolutions up to 1080p Component, Composite, HDMI and HD/SD-SDI inputs, ASI and IP outputsMatrox Maevex Series encoders and decoders stream and record multiple 4K and/or Full HD channels over standard Gigabit Ethernet connections at user-defined bitrates, providing flexible management of local or remote data and ensuring complete reach and control over the entire network.Ever since Apple released the iMac Pro, my email has been clogged with people asking advice on how to configure their system. Professional Video Encoder For Mac Hls Streaming Software ADV-9700 High Performance, Low Latency HD H.264 Encoder. Outputs: 8 IP streams, 1 multiplexed IP stream, 1 ASI multiplexed stream.Photographers can work with enormous files and perform image processing up to 4.1 times faster. What does appear is faster performance.IMac Pro takes Mac performance to a whole new level, even when compared to our fastest quad-core iMac. Instead, Apple’s media apps take advantage of whatever technology or performance benefits are provided in the hardware.In other words, there are no new features in FCP X that appear if it is running on an iMac Pro. This includes an all-64-bit architecture, optimization for core technologies including Metal, tight integration with both CPU and GPU, and the ability to take advantage of faster i/o – both to the processors and storage.There are no optimizations in Final Cut, Motion or Compressor that focus specifically on the iMac Pro. It will be blindingly fast, it will work great and you’ll have enormous bragging rights.But, if money IS an object, then you need to make trade-offs, balancing the performance you need with the money you have.The good news is that you don’t need to buy the top-of-the-line to get a system today that can meet your editing needs for the next several years.When Apple rebuilt Final Cut to create FCP X, they focused on upgrading its underlying architecture to take advantage of coming advances in hardware.So everything you see on a current iMac looks the same on the iMac Pro:But, while the display of the iMac Pro is the same as an iMac, the display capability of the iMac Pro is greater: This is not the same as not wanting one, but you don’t need it.However, if the bulk of your work involves 4K or greater frame sizes, 360° VR, RAW files, or HDR, the performance benefits of this new system make it worth considering, because the design of the iMac Pro significantly speeds working with larger frame sizes, faster frame rates, more effects, more processor-intensive codecs (such as HEVC).With that being said, let’s take a look at the specific components to see which ones make the most sense for video editing.The iMac Pro uses the same display technology as the 5K iMac. The performance benefits of the iMac Pro don’t justify the expense.If you are hobbyist, no, you don’t need an iMac Pro. If you principally work with SD or HD material, an iMac will be perfectly fine. The iMac Pro can also export HEVC video 3 times faster.NOTE: Keep in mind that Apple reports these performance numbers are based on: “Testing conducted by Apple in November 2017 using pre-production 2.3GHz 18-core Intel Xeon W-based 27-inch iMac Pro systems with 128GB of RAM and pre-production 3.0GHz 10-core Intel Xeon W-based 27-inch iMac Pro systems with 64GB of RAM, both configured with Radeon Pro Vega 64 graphics with 16GB of HBM2.”In other words, these numbers are based on the high-end 18-core system, which won’t be shipping until next year and, as you’ll see, may be more than you need.Well, “need” is a relative term. Video editors can edit up to eight streams of 4K video, or edit 4.5K RED RAW video and 8K ProRes 4444 at full resolution in real time without rendering.
Video Encoder For Streaming Mac Hls StreamingAlso, the 10-core system offers a higher Turbo Boost speed of 4.5GHz versus 4.2GHz for the 8-core CPU. This hardware encoder is independent of CPU cores.However, there are benefits to more cores, especially when decoding and encoding heavily threaded codecs like ProRes or HEVC. For example, H.264 compression takes advantage of a hardware encoder which is built into all current Macs. However, for most of the editing that most of us are doing, we don’t need to buy the top-of-the-line system to get significantly improved editing performance.The 8-core system is fine for most editing and compression. It has enhanced external connectivity and more Thunderbolt 3 ports (so you still have Thunderbolt ports left over for other accessories after connecting a display).Before the shouting starts, let me say again that if money is no object, buy the top-of-the-line iMac Pro. It is also worth noting that it does all this while still being super quiet (it is an iMac, after all), letting you focus on your work.In general, editing video tends to use more of the CPU while effects and graphics tend to rely more heavily on the GPU. But, on the inside, it’s radically different.One of the key things Apple was able to do is make the system all flash-based 3 GB/s of fast SSD is pretty darn fast! Switching to all flash allowed Apple to remove the 3.5” hard drive and use that large space for a dual blower design and a massive heatsink and heat pipe architecture.This delivers 75% more airflow and 80% more thermal capacity, enabling far more CPU and GPU power in the box over a traditional iMac. What I discovered is that, even more than the Mac Pro, the iMac Pro internals are designed specifically to dissipate heat under heavy load.Outside, the iMac Pro is millimeter for millimeter the same size and shape as a standard 27-inch iMac with Retina 5K display outside of the space gray color and a few extra vents on the back. 10 cores for multicam editing and RAW video workflows.One of the issues I’ve heard about the current Mac Pro is that it has a problem with heat under heavy load. I would invest my money elsewhere in the system because video editors will see greater benefits in upgrading RAM and GPU when using Final Cut Pro on an iMac Pro.An exception to staying within a 10-core system is that editors using RED RAW media or working with multiple streams of ProRes — for example, multicam work — will see improved performance with higher-core systems.Larry’s recommendation: 8 cores for general editing. I have’t measured it, but it is probably way past blindingly fast. But all you really need is 32 – 64 GB.The iMac Pro ships with a 1 TB SSD. If, on the other hand, you run multiple applications at once – say FCP X, Motion, Compressor, Photoshop and a web browser – 64 GB of RAM is better.While there is value in more RAM beyond 64 GB, you won’t get enough bang for your buck to justify the additional cost.Larry’s recommendation: 32 GB for people on budgets, with a maximum of 64 GB for serious multi-application users.UPDATE: The latest updates allow expanding RAM to 256 GB. If time is scarce, an updated GPU will speed effects rendering, exporting and, in some cases, video compression.The 32 GB default RAM is fine for virtually all editing. Specifically, faster rendering and exporting. What it does, instead, is work faster. This compression, of course, leads to smaller file sizes, but the resulting compression requires more processing power. While this is worth its own article here are some thoughts.Both H.264 and HEVC are relatively highly compressed formats. Spend your money on faster, bigger external storage.Unlike video editing, video compression has its own requirements for system resources. You will need an external high-speed, Thunderbolt 3 RAID system for even medium-sized projects.Larry’s recommendation: Stay with the 1 TB SSD. Best podcast setup for macStill, 10-bit encoding is recommended for the highest quality HDR output when using the HEVC codec. Also, it’s important to note that video compression often includes other operations including retiming, scaling, and color conversion — all of which use the GPU.If you are interested in HDR, 8-bit HEVC does, in fact, support HDR.
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