API: Support statistic and on_play/stop for HLS stream

[duiniuluantanqin]

No description provided.

[codecov-commenter]

Codecov Report

Merging #2578 (a00554a) into develop (7ab3e4a) will increase coverage by 1.47%.
The diff coverage is 58.59%.

@@             Coverage Diff             @@
##           develop    #2578      +/-   ##
===========================================
+ Coverage    59.14%   60.61%   +1.47%     
===========================================
  Files          122      122              
  Lines        51759    55103    +3344     
===========================================
+ Hits         30613    33403    +2790     
- Misses       21146    21700     +554     

| Impacted Files | Coverage Δ | |'

Translated to English while maintaining the markdown structure:

'| Impacted Files | Coverage Δ | |
|---|---|---|
| trunk/src/app/srs_app_http_api.cpp | 0.00% <0.00%> (ø) | |
| trunk/src/protocol/srs_http_stack.hpp | 100.00% <ø> (ø) | |'

Translated to English while maintaining the markdown structure:

'| trunk/src/app/srs_app_http_api.cpp | 0.00% <0.00%> (ø) | |
| trunk/src/protocol/srs_http_stack.hpp | 100.00% <ø> (ø) | |
| trunk/src/app/srs_app_http_static.cpp | 45.41% <51.08%> (+4.54%) | ⬆️ |
| trunk/src/protocol/srs_http_stack.cpp | 92.83% <66.66%> (-0.26%) | ⬇️ |
| trunk/src/utest/srs_utest_http.cpp | 99.73% <100.00%> (+<0.01%) | ⬆️ |
| trunk/src/app/srs_app_threads.cpp | 60.10% <0.00%> (-2.50%) | ⬇️ |
| trunk/src/app/srs_app_dvr.cpp | 0.00% <0.00%> (ø) | |'

Translated to English while maintaining the markdown structure:

'| trunk/src/app/srs_app_dvr.cpp | 0.00% <0.00%> (ø) | |
| trunk/src/utest/srs_utest_kernel.cpp | 98.83% <0.00%> (+0.33%) | ⬆️ |
| trunk/src/app/srs_app_hybrid.cpp | 12.96% <0.00%> (+1.85%) | ⬆️ |
| ... and 5 more | |

---

Continue to review full report at Codecov.

Legend - Click here to learn more
| Δ = absolute <relative> (impact), ø = not affected, ? = missing data |

Translated to English while maintaining the markdown structure:

| Δ = absolute <relative> (impact), ø = not affected, ? = missing data |

Powered by Codecov. Last update 7ab3e4a...a00554a. Read the comment docs.

TRANS_BY_GPT3

[xiaozhihong]

secret' feels like it would be better to change the name. My first reaction is always "key"... If you don't look closely, you might think this is some kind of authentication code. Maybe changing it to 'userid', 'uniqueid', or 'magicid' would be better?

TRANS_BY_GPT3