Function mapStream

mapStream(spec: string | StreamSpecifier): ["-map", string]
Build a -map flag from a StreamSpecifier or raw string. Returns ['-map', specStr] tuple when called with a StreamSpecifier/string. Returns the specifier string directly when called with (fileIndex, type, streamIndex).
Parameters
- spec: string | StreamSpecifier
Returns ["-map", string]
Example
```
mapStream(ss(0, 'v', 0))   → ['-map', '0:v:0']
mapStream('0:a:1')         → ['-map', '0:a:1']
mapStream(0, 'v', 0)       → '0:v:0'   (convenience — string only)
```
- Defined in src/helpers/mapping.ts:78
mapStream(fileIndex: number, type: MediaTypeChar, streamIndex?: number): string
Build a -map flag from a StreamSpecifier or raw string. Returns ['-map', specStr] tuple when called with a StreamSpecifier/string. Returns the specifier string directly when called with (fileIndex, type, streamIndex).
Parameters
- fileIndex: number
- type: MediaTypeChar
- OptionalstreamIndex: number
Returns string
Example
```
mapStream(ss(0, 'v', 0))   → ['-map', '0:v:0']
mapStream('0:a:1')         → ['-map', '0:a:1']
mapStream(0, 'v', 0)       → '0:v:0'   (convenience — string only)
```
- Defined in src/helpers/mapping.ts:79