This is followed by encoding of video data for compression. The algorithms process the video using the motion competition technique that predicts a frame in video based on previous or future frames. The video compression breaks an image into square pixels called macroblocks of size about 16×16 pixels. You can play H.264 videos in all video players. The video compression supports 4K high-definition video playback. The H.264 codec was developed to improve the video quality at a lower bitrate compared to its predecessor H.263 codec. H.264 codec is based on the older MPEG-4 concept. Also called MPEG-4 Part 10 or Advanced Video Coding (AVC), it is commonly used for recording, compressing, sharing, and streaming video content online. H.264 is an industry-standard codec for video compression. And thus, comes H.265 video codec, which was developed to beat these challenges. Here, the need for advanced and efficient video compression plays a vital role, which is ahead of H.264 codec. are gaining massive popularity, these platforms are looking for ways to bring a seamless and high-quality video experience for viewers.
Plus, as YouTube, Netflix, Hulu, Vimeo, etc. However, with the growth of high-end cameras capable of recording 4K and 8K quality videos, there’s a growing challenge of storing, uploading, streaming, and sharing large-sized video files. NOW, I am going to stick with QSV 2pass, but am wondering if I am doing something wrong, seeing as 1 or 2 pass result in the same file size regardless and how the NVENC file is much smaller in size at the same bitrate when comparing even single pass runs.Until now H.264 codec is a universal standard video compression used by varied platforms and devices.
Using the same input file, I also was surprised to have found that the QSV h.264 encoded file is the exact same size after either a 1 or 2 pass run. Is this smaller NVENC encoded file a simple result of lesser quality, even at the same resulting bitrate ? or am I missing something else ?
I found that NVENC is obviously faster on it's highest quality single pass compared to QSV (on my hardware), but the NVENC 8192kbps file is also about 2GB Smaller (8GB vs. I did however do a direct comparison using NVENC, which in VidCoder is limited to single pass work, benchmarking it against QSV in a single pass with all of the same basic settings set to the highest quality file possible. For the last while I have been trying to find a more efficient way to shrink large 1080p MKV files for media server storage and keep them 8196kbps/AC3, before I make the switch entirely to h.265.Īs I was told on this very forum, if a powerful enough CPU wasn't an option, QSV would give me the best image quality results, so that is out of the way.
0 kommentar(er)
