srs/trunk/3rdparty/srs-docs/doc/sample-ffmpeg.md
2025-06-27 07:23:45 -04:00

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---
title: Transcode Deploy
sidebar_label: Transcode Deploy
hide_title: false
hide_table_of_contents: false
---
# Transcode deploy example
FFMPEG can used to transcode the live stream, output the other RTMP server.
For detail, read [FFMPEG](./ffmpeg.md).
**Suppose the server ip is 192.168.1.170**
## Step 1, get SRS
For detail, read [GIT](./git.md)
```bash
git clone https://github.com/ossrs/srs
cd srs/trunk
```
Or update the exists code:
```bash
git pull
```
## Step 2, build SRS
For detail, read [Build](./install.md)
```bash
./configure --ffmpeg-tool=on && make
```
## Step 3, config file
For detail, read [FFMPEG](./ffmpeg.md)
Save the bellow as config file, or use `conf/ffmpeg.transcode.conf` instead:
```bash
# conf/ffmpeg.transcode.conf
listen 1935;
max_connections 1000;
vhost __defaultVhost__ {
transcode {
enabled on;
ffmpeg ./objs/ffmpeg/bin/ffmpeg;
engine ff {
enabled on;
vfilter {
}
vcodec libx264;
vbitrate 500;
vfps 25;
vwidth 768;
vheight 320;
vthreads 12;
vprofile main;
vpreset medium;
vparams {
}
acodec libfdk_aac;
abitrate 70;
asample_rate 44100;
achannels 2;
aparams {
}
output rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
}
}
}
```
## Step 4, start SRS
For detail, read [FFMPEG](./ffmpeg.md)
```bash
./objs/srs -c conf/ffmpeg.conf
```
## Step 5, start encoder
For detail, read [FFMPEG](./ffmpeg.md)
Use FFMPEG to publish stream:
```bash
for((;;)); do \
./objs/ffmpeg/bin/ffmpeg -re -i ./doc/source.flv \
-c copy \
-f flv rtmp://192.168.1.170/live/livestream; \
sleep 1; \
done
```
Or use FMLE to publish:
```bash
FMS URL: rtmp://192.168.1.170/live
Stream: livestream
```
The stream in SRS:
* Stream publish by encoder: rtmp://192.168.1.170:1935/live/livestream
* Play the original stream: rtmp://192.168.1.170:1935/live/livestream
* Play the transcoded stream: rtmp://192.168.1.170:1935/live/livestream_ff
## Step 6, play the stream
For detail, read [FFMPEG](./ffmpeg.md)
RTMP url is: `rtmp://192.168.1.170:1935/live/livestream`
User can use vlc to play the RTMP stream.
Note: Please replace all ip 192.168.1.170 to your server ip.
## Step 7, play the transcoded stream
For detail, read [FFMPEG](./ffmpeg.md)
RTMP url is: `rtmp://192.168.1.170:1935/live/livestream_ff`
User can use vlc to play the RTMP stream.
Note: Please replace all ip 192.168.1.170 to your server ip.
Winlin 2014.11
![](https://ossrs.io/gif/v1/sls.gif?site=ossrs.io&path=/lts/doc/en/v7/sample-ffmpeg)