H264 is a licensed video compression standard that is necessary in order to obtain a high degree of video stream compression while maintaining good quality. The H264 format has been widely used to record, process and store data from an external surveillance camera. That is, a file with an extension of H264 is essentially a video. The file was developed by Video Coding Experts Group. The specificity of the H264 format is that video data is compressed to a minimum size. Moreover, the resolution settings for video and audio quality are at a high level. The format is innovative. He found widespread use on vehicle video recorders and outdoor surveillance cameras. H.264 is a video compression codec that requests the video container needed to store encoded videos. This is a proprietary video codec that uses highly efficient compression algorithms and delivers great video quality. The main advantage of the H264 format is its high compression ratio when it is necessary to maintain the proper quality of video and audio data. When working with video recorders such as a camera and a DVR, which can be long and even continuous, this is very important if it is not possible to clean the physical memory. For users, the H264 video format is very popular. And therefore, there is practically no problem with playing back an H264 file. It can be opened online. For this, standard Windows tools are used. Say Media Player. Specialized programs are also used.
AAC is a sound encoded file format developed by Fraunhofer IIS, AT&T, Dolby and Sony. Its name stands for Advanced Audio Coding. The AAC format is an industry standard and was created as an improved alternative to the most common MP3 audio file format. AAC files do have slightly improved features compared to MP3s. Let's say this format provides the opportunity for improved processing of frequencies above 16 kHz. At the same time, the sound quality of AAC files is closer to the original sound source.