Returns a file with a segment of a video chat stream in a modified OGG format for audio or MPEG-4 format for video
| group_call_id |
Group call identifier |
| time_offset |
Point in time when the stream segment begins; Unix timestamp in milliseconds |
| scale |
Segment duration scale; 0-1. Segment's duration is 1000/(2**scale) milliseconds |
| channel_id |
Identifier of an audio/video channel to get as received from tgcalls |
| video_quality |
Video quality as received from tgcalls; pass null to get the worst available quality |