srs needs to support rtmp push address with parameters appended

[wnpllrzodiac]

The address format rtmp://127.0.0.1:1935/app?vhost=host1&param1=a&param2=b/stream123 is currently supported by SRS.
The address format rtmp://127.0.0.1:1935/app/stream123?vhost=host1&param1=a&param2=b is currently not supported.

However, common platforms like Alibaba Cloud use the latter format. It is hoped that both formats of RTMP streaming addresses can be supported.

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[juntaoliu]

Parameters are easy to talk about, and supporting them is relatively simple.
But dealing with vhosts may be more troublesome.
In rtmp streaming, during the connect phase, only the path before stream123 is transmitted, and the part after stream123 is transmitted during the publish phase.
If the vhost is placed at the end, then the specific vhost may not be determined during the connect phase.

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[wnpllrzodiac]

I used nginx rtmp to create a redirect, combined with lua authentication, and added support for delayed backend parameters. The vhost is something that needs to be considered.

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[winlinvip]

SRS2h supports this method, and the posterior approach is more in line with normal habits. Reference:

1. https://github.com/ossrs/srs/wiki/v2_EN_RtmpUrlVhost#srs-url
2. https://github.com/ossrs/srs/wiki/v2_CN_RtmpUrlVhost#srs-url

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[winlinvip]

Please test various URLs to ensure that they are all supported and check if any new bugs have been introduced.

Please help to test about all URLs. Please file issues if introduced new bug.

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[wuxianlijiang]

Thank you

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