RTC playback always starts with an RTP timestamp of 0

[xuehw357]

Description

RTMP push stream, WebRTC playback, already configured:

play {
     time_jitter off;
}

But it's not working, the playback RTP timestamp still starts from 0.

Note: It works normally in version 4.0.

1. SRS Version: branch 5.0release v6.0.45

2. SRS Log:
   None

3. SRS Config:

play {
     time_jitter off;
}

rtc {
     enabled  on;
     rtmp_to_rtc on;
     rtc_to_rtmp on;
}

Replay

Please describe how to replay the bug?

RTMP push stream, RTC playback

Expect

When configuring time_jitter off, the playback RTP timestamp should not be forced to start from 0, and should maintain the original timestamp of the push stream side.

[winlinvip]

Not sure what starting from 0 would do?

[xuehw357]

In some scenarios, it is necessary to restore the push stream timestamp on the playback side. If it is forced to start from 0, it does not match the meaning of configuring time_jitter off.