![]() For this reason it's best to encode with a constant quality setting if you can (e.g. If you keep the bitrate the same a higher resolution might not fit into the given bitrate and artifacts occur. Higher resolution will give a nicer picture but that also depends on the bitrate. To save any headaches just keep the proper aspect for your input (1024:576 is the same as 1280:720 so that doesn't matter). This is also called anamorphic video and is used when a codec/medium doesn't natively support the proper aspect. For example, DVD is a format which is encoded as such the video files are 720:576 (for pal) and the player adjusts them to 1024:576. If you are going to encode to a different aspect ratio the player will adjust it to the proper one (if it's a container which supports it and your player is smart enough). Test whether your players support videos with non-square SAR.ġ280/720 = 1.77. Transcode a few videos and see which you prefer. In case of the same file size: which resolution (1024x576 or 720x576) will have better "visual quality"?īecause of the ever present horizontal blur, I'd argue that 1024×576 will always look better. This'll likely result in slightly faster encoding and lower bitrates at the same CRF. The upside is, well, less data to compress. ![]() Most MPEG-2 and H.264 decoders do that, I don't know about HEVC though (It still carries the required VUI but I don't know how commonly it is used). But to your question: 1024×576 is native 16:9, 720×576 requires your player to read the SAR metadata in either the container or the video bitstream and to respect it (You also have to set them correctly when encoding). ![]() FFMPEG SCALE DOWN SIZE 720PPersonally, I wouldn't downscale 720p at all, that's already a relatively low resolution. Is it worth to try to scale my 1280x720 files down to 720x576 instead of default 1024x576? What are the (dis)advantages? This ensures a consistent video frame size which makes it easier/cheaper to build DVD players without relying on letterboxing/pillarboxing. So, PAL DVDs have a video resolution of 720×576, and depending on the metadata it has a SAR (sample aspect ratio) of 16:15 for 4:3 video (resulting in a resolution of 768×576 with square pixels) or 64:45 for 16:9 which results in the 1024×576 resolution you mentioned. ![]()
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