![]() ![]() You'll find more information at Hardware vs. Whether you’ve created them in the built-in editor, or imported your own. If you need a high quality hardware encoder then you will be paying more for it. Shutter encoder can be used to embed closed captions and burn-in open captions in only a few clicks. It is a great choice where speed is key and where quality loss for a given bandwidth (or greater bandwidth for given quality) is acceptable. ![]() The hardware encoder in your graphics card is enough to do the job, to do it quickly. It will have shortcuts and trade-offs in order to keep complexity down.Īs a result the software encoder will get better results 99 times out of 100. It might be the only job a hardware encoder can do, but it requires a massive amount of real-estate to achieve the same level of complexity as a full-featured software encoder. Hardware encoders will always be worse than software encoders, unless they are specifically tuned to produce high quality results which would result in them having far higher complexity and therefore cost in terms of both silicon real estate and development time. the crf parameter in an encoder does not necessarily have the same effect in another encoder, and the same value can result in completely different effective quality (the parameters and their scales are not standardized).īecause hardware encoding uses fixed function blocks which are far less versatile and adaptable than software encoders. And the point is that not only the algorithms are different, but also the parameters do not match between them: e.g. Using the "hardware acceleration" is definitely not using the same encoder ported to a GPU (or to any other hardware accelerator), it's actually using fully different encoder (since you are on a Mac I'm not sure which one is selected by your software, I know that Apple provides its own encoder). There exist also H.264 encoders that run on GPU, and they are generally provided by the GPU vendors: QSV for Intel integrated GPUs, nvenc for Nvidia GPUs, etc. The most widely known is x264, which is the default encoder in ffmpeg. To add upon the answer by is a video encoding norm, and there exists different encoders (or codecs) that can produce H.264 video streams. ![]()
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