解析光盘视频文件（Analyzing optical disk video file）.docVIP

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解析光盘视频文件（Analyzing optical disk video file）.doc

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解析光盘视频文件（Analyzing optical disk video file）

解析光盘视频文件（Analyzing optical disk video file） IFO - DVD file brief introduction The full name of the IFO file is InFOrmation. The IFO file provides very important navigation information for the player. For example, where does a chapter begin, where a particular audio stream or subtitle stream is located, and so forth. Therefore, the IFO file is an important file to control the DVD playback process. The IFO file is used to control the playback of the VOB file. The document contains information about how and when to play VOB files, such as the start time of the paragraph, the location of the audio data stream, and the location of the subtitle data stream. DVD or playback software, by reading the IFO file, in order to constitute the DVD video of the various data organically combine to play. IFO file role The directory on the DVD disk contains two subdirectories, AUDIO_TS and VIDEO_TS. Since Audio_ts is reserved for the DVD version of the compact disc DVD-AUDIO is used, so this folder is empty in the DVD movie CD While in Video_ts Save all video, audio, and subtitle information in the movie. According to the DVD video disc (DVD-VIDEO) standard, a standard Video_ts folder should contain three types of files: VOB, IFO, and BUP. Here we are, and then look at their respective roles. VOB (Video OBjects video object file):VOB file is used to save video data stream, audio data stream, multi language subtitle data stream and picture data used for menu and button in DVD video. Since a VOB file can store up to 1 video streams, 9 audio data streams and 32 subtitle streams, DVD movies can have up to 9 languages and subtitles in 32 languages. The IFO (InFOrmation information file):IFO file is used to control the playback of the VOB file. The document contains information about how and when to play VOB files, such as the start time of the paragraph, the location of the audio data stream, and the location of the subtitle data stream. DVD or playback software, by reading the IFO file, in