Video formats include AVI, MPEG, MP4, WMV, FLV, MOV, MKV, RMVB, 3GP, etc. Detailed introduction: 1. AVI is a common video format developed by Microsoft. It supports multiple codecs and audio formats and has wide compatibility. Due to its larger file size and lower compression rate, The AVI format is gradually being replaced by other more efficient formats; 2. MPEG is a collection of video and audio compression standards, MPEG-1 and MPEG-2 are the two most common formats, etc.

avchd is a high-definition video camera format jointly launched by Panasonic Industrial Co., Ltd. and Sony Corporation. The format combines the existing DVD architecture (i.e. 8cm DVD disc and red light) with an advanced compression based on MPEG-4AVC/H.264 technology codecs integrated together.

m4v is a video format used on online video on demand websites and mobile handheld devices. It was created by Apple and used by iPod, iPhone and PlayStation Portable. m4v is a special type of MP4 format, based on the second version of MPEG-4 encoding. Its video encoding uses H264 or H264/AVC, and its audio encoding uses AAC; it uses H264 high-definition encoding, compared with traditional On2 VP6, H263, Divx, etc. , able to achieve higher clarity with a smaller size.

The video format that takes up the smallest space is AV1. AV1 uses advanced compression technology to significantly reduce video file size while maintaining high video quality. Compared with other common video formats, AV1 has higher compression efficiency and smaller file size. AV1 uses a variety of technologies when compressing video. Intra-frame prediction and inter-frame prediction can effectively utilize the spatial and temporal correlation in the video and reduce the storage of redundant information. Transform coding and entropy coding can further compress video data, reduce file size, etc.

Adobe PremierePro can handle various video formats, including MP4, AVI, ProRes, DNxHD, etc. 1) It supports a variety of codecs, making it easy to import and output videos. 2) Use the SDK to programmatically control the import and output process. 3) Media browser helps preview and select formats. 4) Proxy files can optimize high-resolution video processing. 5) Keeping files organized and regularly backed up are best practices for handling different formats.

The most common general video formats include MP4, WebM and Ogg, among which 1. MP4 can be played on almost all devices and platforms, especially natively supported by mobile phone systems (such as iOS and Android), suitable for shooting, downloading and editing; 2. WebM and Ogg are recommended for web pages, both of which are open source formats and are suitable for online playback. WebM performs well in Chrome, while Ogg is suitable for Firefox and Safari; 3. Although some platforms such as Douyin and YouTube support multiple formats, it is recommended to upload MP4 to ensure compatibility and pay attention to encoding parameters and resolution limitations.

To confirm whether the browser can play a specific video format, you can follow the following steps: 1. Check the browser's official documents or CanIuse website to understand the supported formats, such as Chrome supports MP4, WebM, etc., Safari mainly supports MP4; 2. Use HTML5 tag local test to load the video file to see if it can play normally; 3. Upload files with online tools such as VideoJSTechInsights or BrowserStackLive for cross-platform detection. When testing, you need to pay attention to the impact of the encoded version, and you cannot rely solely on the file suffix name to judge compatibility.

To improve HTML5 video compatibility, multi-format support is required. The specific methods are as follows: 1. Select three mainstream formats: MP4, WebM, and Ogg to cover different browsers; 2. Use multiple elements in the tag to arrange them according to priority; 3. Pay attention to preloading strategies, cross-domain configuration, responsive design and subtitle support; 4. Use HandBrake or FFmpeg for format conversion. Doing so ensures that videos are played smoothly on all kinds of devices and browsers and optimizes the user experience.