buffer frequently after seek

[heyfluke]

when play some specific file over http, it buffers frequently after seeking.

try this file.

https://github.com/heyfluke/buggyvideos/blob/master/http/wuhan_driver.mp4

I recommend to serve the file over a self-hosted web server.

[heyfluke]

I think ffmpeg sends redundant request when seeking this video. The requests looks like this:
GET file range:100-
GET file range:200-
GET file range:300-
GET file range:400-
...

All of the requested ranges are without ending position which cause the web server to send a lot of data.

[heyfluke]

I closed the issue because I can listen the buffering state till buffer full.