channelloha.blogg.se - Nvidia hevc codec download

NVIDIA HEVC CODEC DOWNLOAD HOW TO
NVIDIA HEVC CODEC DOWNLOAD SOFTWARE
NVIDIA HEVC CODEC DOWNLOAD CODE

If you have a video that you are planning to discard for a high quality re-encode to save on file size, it’s better to stick with x265. AMD VCE also suffers from lack of B-frame support, which I will talk about in the next blog post. I expect that is because VCE doesn’t support pre-analysis for HEVC, only for H.264. I have noticed while watching the AMD VCE encodes that it doesn’t do a great job with scene changes. It also maintains a steady edge throughout the test. However, x265 has a clear advantage at lower bitrates if all you care about is quality. It simply means that it probably WILL BE apparent if it is less than that.) This was tested with a 30 second excerpt from Dolby’s Glass Blowing Demo (UHD profile 8.1)īoth encoders do great, keeping within a range that shouldn’t be to noticeable. (VMAF 93+ doesn’t mean you won’t notice quality loss. The goal for a decent encode is to reach at least VMAF 93, which is the bitrate range we will stay above. In this scenario we will compress a UHD video with a bitrate of 15,000k to four different rates. We’ll be using the veryslow setting, darn the total time taken!

Now lets venture into x265’s house and compare computed quality with VMAF. Which makes them great for powering your Zoom calls or streaming to Twitch. Hardware encoders were designed with the idea of “accelerated” encoding. Even if using an AMD 5950x which may be up to twice as fast, the hardware encoder would still dominate. AMD’s hardware encoding clearly pummels the fastest setting x265 has to offer, even on an i9-9900k. Hardware encoding ran at 96 fps while x265 could only manage 14.5 fps. Using a 60fps HDR10 UHD source, x265 was compared with it’s highest speed preset vs VCE’s slowestĪs expected, it was a slaughter. We’re going to compare x265 using it’s fastest encoding speed vs the slowest setting AMD’s VCE currently has with a 60fps HDR10 4K source video. Here’s what everybody loves: A good graph.

Let’s see what happens when they venture into each other’s bailiwicks. For example, on a 6900XT you can real-time encode a 60fps UHD stream on the slowest setting! It is also the standard when looking for pure quality metrics in HEVC videos.Ĭomparatively, hardware encoding, in this case using AMD’s Video Coding Engine (VCE), is built to be power efficient and fast. By being able to run on almost anything that can compile C code, x265 is a champion of cross platform operations. So what is this workhorse good for? Flexibility and video archival.

NVIDIA HEVC CODEC DOWNLOAD SOFTWARE

There are plenty of other software encoders like the industry used ATEME TITAN File for UHD blu-rays or other open source encoders like Turing codec or kvazaar, but because of their lack of inclusion in standard tools like FFmpeg, they are overlooked. The workhorse of the HEVC software encoding world is x265. Please excuse the poor artwork, Clara wasn’t available this week so I had to do it myself! Use case over metrics Just as it’s futile to compare the track capabilities of a supercar to the towing capacity of a pickup truck, we are about to venture into said territory with these encoders.

In today’s case, it takes a AMD GPU with VCN support to use the features we want to test.Īpples and oranges are both fruit, sports cars and pickup trucks are both vehicles, and software and hardware encoders both transcode videos. In the other corner, Hardware encoders rely on specific physical hardware components to exist in a system to use them to accelerate their transcoding. Doesn’t matter if it’s an Intel i7, an AMD 5900x or even on your phone’s ARM based CPU. Software encoders are coded to run on any general purpose CPU.

VMAF – Netflix’s video quality metric used to compare encoded video to source’s quality.

HDR10 – A set of metadata presented alongside the video to give the display additional details.

HEVC / H.265 – High Efficiency Video Coding – The videos codec we will use that supports HDR10.

NVIDIA HEVC CODEC DOWNLOAD CODE

AMF – Advanced Media Framework – AMD’s code and tools for developers to work with VCE / VCN.

VCN – Video Core Next – AMD’s new name for GPU hardware encoders (VCE / VCN used interchangeably).

VCE – Video Coding Engine – AMD’s early name for its built in encoding hardware.

This use case is not usually covered in benchmarks and tests I have seen, and is more of the interest to those who have seen my previous posts on Encoding UHD HDR10 videos but may want to hardware accelerate it. Note: I will only be comparing HEVC/H.265 10-bit HDR10 videos (both source and output).

NVIDIA HEVC CODEC DOWNLOAD HOW TO

To that end, I will present my own take on the current “war” between software and hardware encoders, then go into quick details of how to best use AMD GPUs for encoding for video archival with FastFlix. It’s 2021 and there still isn’t a lot of good info about AMD’s VCN hardware encoder for consumers.