Transcode: Bugfix: Fix loop transcoding with host. #3516. v6.0.168 v7.0.41 (#4325)

#### What issue has been resolved?
for issue: https://github.com/ossrs/srs/issues/3516
https://github.com/ossrs/srs/issues/4055
https://github.com/ossrs/srs/pull/3618

#### What is the root cause of the problem?
The issue arises from a mismatch between the `input` and `output`
formats within the
[`SrsEncoder::initialize_ffmpeg`](https://github.com/ossrs/srs/pull/4325/files#diff-a3dd7c498fc26d36def2e8c2c3b7edfe1bf78f0620b1a838aefa70ba119cad03L241-L254)
function.

For example:
Input: `rtmp://127.0.0.1:1935/live?vhost=__defaultVhost__/livestream_ff`
Output:
`rtmp://127.0.0.1:1935/live/livestream_ff?vhost=__defaultVhost__`

This may result in the failure of the [code
segment](https://github.com/ossrs/srs/pull/4325/files#diff-a3dd7c498fc26d36def2e8c2c3b7edfe1bf78f0620b1a838aefa70ba119cad03L292-L298)
responsible for determining whether to loop.

#### What is the approach to solving this issue?
It simply involves modifying the order of `stream` and `vhost`.

#### How was the issue introduced?
The commit introducing this bug is:
7d47017a00
The order of [parameters in the configuration
file](7d47017a00 (diff-428de168925d659dae72bb49273c3b048ed2800906c6848560badae854250126L26-R26))
has been modified to address the `ingest` issue.

#### Outstanding issues
Please note that this PR does not entirely resolve the issue; for
example, modifying the `output` format in configuration still results in
exceptions. To comprehensively address this problem, extensive code
modifications would be required.

However, strictly adhering to the configuration file format can
effectively prevent this issue.

---------

Co-authored-by: Jacob Su <suzp1984@gmail.com>
Co-authored-by: john <hondaxiao@tencent.com>
Co-authored-by: winlin <winlinvip@gmail.com>

trunk/doc/CHANGELOG.md

@@ -7,6 +7,7 @@ The changelog for SRS.
 <a name="v7-changes"></a>
 
 ## SRS 7.0 Changelog
+* v7.0, 2025-06-04, Merge [#4325](https://github.com/ossrs/srs/pull/4325): fix bug: loop transcoding #3516. v7.0.41 (#4325)
 * v7.0, 2025-06-04, Merge [#4341](https://github.com/ossrs/srs/pull/4341): Update the release in the README for consistent. v7.0.40 (#4341)
 * v7.0, 2025-06-04, Merge [#4368](https://github.com/ossrs/srs/pull/4368): Update the codename for version 7.0 to "Kai". v7.0.39 (#4368)
 * v7.0, 2025-06-01, Merge [#4366](https://github.com/ossrs/srs/pull/4366): Script: Use clang-format to unify the coding style. v7.0.38 (#4366)
@@ -51,6 +52,7 @@ The changelog for SRS.
 <a name="v6-changes"></a>
 
 ## SRS 6.0 Changelog
+* v6.0, 2025-06-04, Merge [#4325](https://github.com/ossrs/srs/pull/4325): fix bug: loop transcoding #3516. v6.0.168 (#4325)
 * v6.0, 2025-05-29, Merge [#4356](https://github.com/ossrs/srs/pull/4356): RTMP: Use extended timestamp as delta when chunk fmt=1/2. v6.0.167 (#4356)
 * v6.0, 2025-03-21, Merge [#4303](https://github.com/ossrs/srs/pull/4303): replace values with enums. v6.0.165 (#4303)
 * v6.0, 2025-03-20, Merge [#4305](https://github.com/ossrs/srs/pull/4305): free sample to prevent memory leak. v6.0.164 (#4305)

trunk/src/app/srs_app_encoder.cpp

@@ -247,11 +247,11 @@ srs_error_t SrsEncoder::initialize_ffmpeg(SrsFFMPEG* ffmpeg, SrsRequest* req, Sr
     input += srs_int2str(req->port);
     input += "/";
     input += req->app;
-    input += "?vhost=";
-    input += req->vhost;
     input += "/";
     input += req->stream;
-    
+    input += "?vhost=";
+    input += req->vhost;
+
     // stream name: vhost/app/stream for print
     input_stream_name = req->vhost;
     input_stream_name += "/";
@@ -288,7 +288,7 @@ srs_error_t SrsEncoder::initialize_ffmpeg(SrsFFMPEG* ffmpeg, SrsRequest* req, Sr
         }
         log_file += ".log";
     }
-    
+
     // important: loop check, donot transcode again.
     std::vector<std::string>::iterator it;
     it = std::find(_transcoded_url.begin(), _transcoded_url.end(), input);

trunk/src/core/srs_core_version6.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       6
 #define VERSION_MINOR       0
-#define VERSION_REVISION    167
+#define VERSION_REVISION    168
 
 #endif

trunk/src/core/srs_core_version7.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       7
 #define VERSION_MINOR       0
-#define VERSION_REVISION    40
+#define VERSION_REVISION    41
 
 #endif