FLVTools, also known as FLVTool2, is a command-line utility designed to manipulate Flash Video (FLV) files. FLV is a container format used for delivering video content over the internet, particularly in Adobe Flash applications.
FLVTools provides several functions for working with FLV files, including:
- Metadata manipulation: FLV files can contain metadata, such as information about the video, audio, and other aspects of the content. FLVTools allows you to add, remove, or modify metadata within an FLV file. This can be useful for updating information about the video, such as title, author, description, or adding custom metadata.
- FLV concatenation: FLVTools enables you to concatenate multiple FLV files into a single FLV file. This is helpful when you want to combine multiple video clips or segments into one continuous video stream.
- Timestamp adjustment: FLV files store timestamps for each frame of video and audio data. FLVTools allows you to modify these timestamps, which can be useful for synchronizing video and audio tracks or adjusting the timing of specific frames.
- Keyframe extraction: FLV files use keyframes to store complete frames of video data, while the frames in between are stored as partial frames. FLVTools can extract these keyframes, which are often required for certain video processing tasks, such as video editing or thumbnail generation.
- Duration calculation: FLVTools can calculate the duration of an FLV file based on its timestamps, allowing you to determine the length of the video content accurately.
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