What is the standard bitrate for smartphone videos? Part 2
Video Terms to Remember 1: Resolution
Resolution is the number of vertical and horizontal pixels in a video.
The higher the resolution, the better the image will look. For example, if you prepare the same image with the same resolution of “640 x 360” and “2560 x 1440”, the latter will be clearer in detail.
Also, both the resolution and the pixel refer to vertical and horizontal pixels, but in the case of the number of pixels, it is expressed by the total number, so if the resolution is “1980 x 1080”, the number of pixels will be “2,138,400”.
Video term 2: frame rate to remember
Frame rate is the number of still images per second of video.
The frame rate unit is “FPS (Frames Per Second)”. Since a video is made up of a collection of continuous still images, the higher the frame rate, the smoother the video. However, the amount of data will increase accordingly.
Therefore, it is important to set the frame rate to the appropriate size according to the purpose of the video.
Video Term 3: Codec to Remember
A codec is a codec that compresses and decompresses audio and video data.
The larger the size of the video, the greater the amount of data, and the higher the quality, the larger the file size. Therefore, it is necessary to compress the data with a codec.
For example, there are types such as “MPEG-4” and “MPEG-2” for video codecs and “MP3”, “AAC” and “FLAC” for audio codecs.
Estimated bit rate suitable for smartphone videos
For smartphone videos, the standard bit rate is “300 kbps” or “600 kbps”.
Taking as an example the frame size that is often used for inline distribution, if the frame size is 480 x 270 px, 360 x 270 px, the bit rate is “300 kbps” and if the frame size is 640 x 360 px, 480 x 360 px, the bit rate is “600 kbps” will be a guide.
