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  2. Comparison of video converters - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_video_converters

    They may recompress the video to another format in a process called transcoding, or may simply change the container format without changing the video format. The disadvantages of transcoding are that there is quality loss when transcoding between lossy compression formats, and that the process is highly CPU -intensive.

  3. Video file format - Wikipedia

    en.wikipedia.org/wiki/Video_file_format

    A video file format is a type of file format for storing digital video data on a computer system. Video is almost always stored using lossy compression to reduce the file size. A video file normally consists of a container (e.g. in the Matroska format) containing visual (video without audio) data in a video coding format (e.g. VP9 ) alongside ...

  4. MP4 file format - Wikipedia

    en.wikipedia.org/wiki/MP4_file_format

    Nero Digital uses DVD Video subtitles in MP4 files. The moov atom contains information about video resolution, frame rates, orientation, display characteristics, and more. It might be placed at the beginning or end of the file. In the latter case, the video file is not playable if the file is incomplete (truncated). [27] [28] [29] [30]

  5. Windows Media Video - Wikipedia

    en.wikipedia.org/wiki/Windows_Media_Video

    Windows Media Video Image (WMV Image) is a video slideshow format. The format works by applying timing, panning and transition effects to a series of images during playback. [20] The codec achieves a higher compression ratio and image quality than WMV 9 for still images as files encoded with WMV Image store static images rather than full-motion ...

  6. QuickTime File Format - Wikipedia

    en.wikipedia.org/wiki/QuickTime_File_Format

    In QuickTime Pro's MPEG-4 Export dialog, an option called "Passthrough" allows a clean export to MP4 without affecting the audio or video streams. One discrepancy ushered in by QuickTime 7 released on April 29, 2005, is that the QuickTime file format supports multichannel audio (used, for example, in the high-definition trailers on Apple's site ...

  7. Matroska - Wikipedia

    en.wikipedia.org/wiki/Matroska

    Matroska (styled Matroška) is a project to create a container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. [4] The Matroska Multimedia Container is similar in concept to other containers like AVI , MP4 , or Advanced Systems Format (ASF), but is an open standard .

  8. MPEG-4 Part 2 - Wikipedia

    en.wikipedia.org/wiki/MPEG-4_Part_2

    (MPEG-4 Video decoder is natively capable of decoding a basic form of H.263.) [2] [3] [4] In MPEG-4 Visual, there are two types of video object layers: the video object layer that provides full MPEG-4 functionality, and a reduced functionality video object layer, the video object layer with short headers (which provides bitstream compatibility ...

  9. Video processing - Wikipedia

    en.wikipedia.org/wiki/Video_processing

    In electronics engineering, video processing is a particular case of signal processing, in particular image processing, which often employs video filters and where the input and output signals are video files or video streams.

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