srs/trunk/doc
chundonglinlin e712b12a15
RTC: audio packet jitter buffer. v7.0.48 (#4295)
Rtp packets may be retransmitted, disordered, jittery, delayed,
etc.There may be abnormalities when converting to rtmp.

To reproduce this problem, you need to set the network reordering by
[tc-ui](https://github.com/ossrs/tc-ui). Note that you need a linux
server, and start it by docker:

```bash
docker run --network=host --privileged -it --restart always -d \
    --name tc -v /lib/modules:/lib/modules:ro ossrs/tc-ui:1
```

Set up 5% packet reordering and a 1ms delay; then you will notice that
the audio is stuttering, somewhat noisy, and lacks fluency.

```bash
curl http://localhost:2023/tc/api/v1/config/raw -X POST \
  -d 'tcset ens5 --direction incoming --delay 40ms --reordering 5% --port 8000'
```

> Note: Even without network conditions, the natural state can also
cause packet reordering, especially in public cloud platforms such as
AWS EC2.

> Note: You can use command `curl
http://localhost:2023/tc/api/v1/config/raw -X POST -d 'tcdel --all
ens5'` to reset the network condition settings.

Check the web console, you will see the reordering setup:

<img width="500" alt="TC Settings"
src="https://github.com/user-attachments/assets/b278fdf4-9fcc-4aac-b534-dfa34e28c371"
/>

Then, publish stream via WHIP: http://localhost:8080/players/whip.html

And, play via HTTP-FLV: http://localhost:8080/players/srs_player.html

Finished by AI:

* [AI: Extract audio jitter buffer to class
AudioPacketCache](a4097d9374)
* [AI: Add utest and fix
bug.](c919227af5)

---------

Co-authored-by: Haibo Chen <495810242@qq.com>
Co-authored-by: winlin <winlinvip@gmail.com>
2025-07-16 21:36:56 -04:00
..
Architecture.md GB28181: Fix bug for parsing GB to RTC. 2022-10-07 19:47:34 +08:00
CHANGELOG.md RTC: audio packet jitter buffer. v7.0.48 (#4295) 2025-07-16 21:36:56 -04:00
Dockers.md Use new cache image name. v6.0.86 (#3815) 2023-10-08 07:43:14 -05:00
Features.md WHIP: Support DELETE resource for Larix Broadcaster. v5.0.148 v6.0.36 (#3427) 2023-03-23 10:01:20 +08:00
ffmpeg-logo.png support ffmpeg filter 2013-12-01 10:54:41 +08:00
ffmpeg-min.png add drawtext filter sample 2013-12-01 12:04:00 +08:00
PERFORMANCE.md Improve README and documents with AI. v5.0.153. v6.0.43 (#3538) 2023-05-12 17:18:30 +08:00
README.md Micro changes and refines. 2022-09-30 17:57:48 +08:00
readme.txt Move doc 2020-01-26 11:14:18 +08:00
Resources.md Merge 4.0release, migrate to new website. 2022-07-31 18:34:18 +08:00
source.200kbps.768x320.flv update readme, add hls(audio-only) support to readme. update sample flv from h264+mp3 to h264+aac 2014-03-21 11:38:02 +08:00
source.flv SquashSRS4: Support RTC2RTMP. 2021-05-01 22:15:57 +08:00
srs-logo.ico Windows: Support cygwin pipline and packager. v5.0.89 (#3257) 2022-11-20 15:02:08 +08:00
srs-logo.png remove the libfreetype for it fullfill with bugs and always cause build failed. 0.9.139 2014-06-29 10:43:53 +08:00