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1. bitmap subtitle
Bitmap subtitle is a subtitle list with all text items as encoded bitmaps.
All subtitle lists that the editor read from a video file or a DVD movie are
bitmap subtitles.
For a bitmap subtitle, the original texts are usually inaccessible, and as the result, they are all blanks in the text list display.
2. text subtitle
Text subtitle is a subtitle list with all text items in their original text forms, and this is easily identified from the text list display.
When a bitmap subtitle is modified with the addition of text items, we will
have a subtitle with both bitmaps and texts, and we may call it a
mixed
subtitle.
It may be helpful for you to read other closely related topics:
1.Quick start.3. How to modify subtitle text from a DVD video?
4. Why do the program scan audio and subtitle when opening a video?
5. How to create one or more subtitle streams for DVD Video?
