Normal bit rate for 1080p. Video encoding for Youtube.
This is a technical article. For non-specialists, we will give you a tip right away: to export videos to Youtube, it would be best to look for a template for youtube in your editing program.
Since 2005, when YouTube appeared, video compression technologies have improved a lot and YouTube has changed the formats in which video is transmitted several times. Now video uploaded to youtube is recoded, stored on servers and displayed to the viewer in H.264 / AVC, WebM / VP9, WebM / VP8, H.263 / Sorenson Spark, H.263 / formats Simple. It makes no sense to encode videos independently in all these formats and all resolutions, youtube does it for us automatically.
The first step is to make the project with the correct parameters
If you are making a video with the aim of publishing it on the Internet, then the first and reasonable way to start a project in your editing program with parameters corresponding to the requirements of youtube (the main thing is that the resolution of the video and the frame rate match: you need to see what vertical and horizontal dimensions of the source material, choose from the standard youtube sizes the one that best suits the parameters of the source material, and in your editing program make a new project with the selected parameters for youtube ).
For example, you have shot a FullHD video with 25 frames per second, in this case you are doing a 1920 x 1080 project, 25 fps, with progressive scan. Second, the option is to mount the project with the parameters corresponding to the source material and export with the settings on YouTube. For example, for HDV camcorder video with dimensions of 1440 x 1080 with one pixel spread, you can create an HDV project, and when exporting you can simply select Full HD 1920 x 1080 dimensions with one pixel square. The third option is to make a video with some own parameters and youtube will transform it by yourself, but if the proportions are distorted, black bars or a black frame appear, then these will be the consequences of your decision. For example, you have a project with the aspect ratio of a widescreen movie, so you edit and export it at 1920×816 or 2560×1080. Another example, you shoot a vertical video and hope that it will also be viewed on mobile devices …. YouTube is moving in this direction, but knowing that it will look different on your phone and on TV is your conscious choice.
Even if you encode the video with compliance with the recommended parameters, when uploading it to YouTube, it may look a little different from your computer. You need to understand that flash player or html5 player can work in browser, each of them can be different version, use or not use video card hardware acceleration. Also, the files played by the player can be h.264 and webm formats. For these reasons alone, the same video can be viewed differently in different browsers on the same computer, and on different computers, different operating systems, different video card drivers, different versions are added flash. Also, videos uploaded to another video hosting service, for example vimeo, will be transcoded differently and played through another player.
You can download avi, mov, mp4, mpg, webm and other formats. These formats are containers in which compressed video with very different codecs can be stored. That is, if an avi or mp4 file is played on your computer, this does not mean that youtube will accept it. Therefore, we will consider only one option: the mp4 container with the h.264 codec.
Youtube player on computer plays video only in 16×9 aspect ratio window, for videos with other aspect ratios, youtube itself adds black bars on the sides as needed. Therefore, you do not need to do it yourself. To avoid black bars, use the following frame sizes (video resolution):
4320p: 7680 x 4320;
2160p: 3840 x 2160;
1440p: 2560 x 1440;
1080p: 1920 x 1080;
720p: 1280 x 720;
480p: 854 x 480;
360p: 640 x 360;
240p: 426 x 240.
Packaging: MP4
Audio codec: AAC-LC; sampling frequency: 96 or 48 kHz; bit rate 384 kb / s for
stereo video codec: H.264, progressive scan (not interlaced; if you have 1080i video, you must convert it to 1080p so there is no “comb”); High profile; variable bit rate with no limitation on maximum size; 4: 2: 0 color subsampling; the frame rate must match the frame rate of the original video, 24, 25, 30, 48, 50 and 60 frames per second are supported, but you can make videos with other rates.
