Preroll the data with the given seek and playspeed.
seek |
optional seek/range specifier |
playspeed |
optional playback rate specifier. This will only be provided when a scaled rate is requested (the speed will not be 0.0 or 1.0) |
List of HTTPResponseElements appropriate for the content request and optional seek/playspeed (e.g. Content-Range, TimeSeekRange.dlna.org, etc) or null/empty list if none are appropriate. Note: the list will be processed in-order by the caller. |
Error |
if anything goes wrong while prerolling the stream. Throws DataSourceError.SEEK_FAILED if a seek method is not supported or the range is not fulfillable. Throws PLAYSPEED_FAILED if the rate is not supported or fulfillable. |