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| | Input specifications |
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| | These are of the form: `[type:filename:num]` (the `[]` are delimiters) |
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| | These are of the form: `[type:filename:num]` (the `[ ]` are delimiters) |
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| | `type` is mandatory, and must be one of `a`/`audio`, `v`/`video`, or `f`/`frame`. Audio and video inputs are self-explanatory. Frame inputs are special type of video input based on a single still image, which could be from a JPEG image (preferred), or automatically extracted from a video source or PDF. You need to specify a frame number for the latter (see below). |
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| | `filename` is mandatory for frame inputs. The special filename `^` indicates that the frame is to be extracted from the immediately preceding segment, so segment order within the configuration file is important for these. If you’ve specified default input files using `--audio` or `--video` on the command line, you can omit `filename` for audio and video inputs (as appropriate), and the script will use the default inputs. If there are no default input files specified, or you want to input from a file other than the default, then `filename` is required. |
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