[Feature] Add more options to the project

[timerring]

Is your feature request related to a problem? Please describe.

Generally, the blrec is bind to the record process. It cannot get the stream url sometimes. However, there are more options to substitute the blrec in practice.

Describe the solution you'd like

Add more options to substitute blrec.

Describe alternatives you've considered

None.

Additional context

None.

[timerring]

It seems that the BiliLiveRecorder only records the flv without using ffmpeg to convert the flv into mp4. Therefore, it's hard to tell if the video is completed. I will find other related signs. Or use webhook to make the conversion.

[timerring]

Besides, the BiliLiveRecorder only support the avc standard, seeing details in this issue. Nonetheless, the blrec can support hevc standard through HLS FMP4. Hence, there is no need to add the BiliLiveRecorder option.