HOME > EN > Transcode

FFMPEG can used to transcode the live stream, output the other RTMP server. For detail, read FFMPEG.

Suppose the server ip is 192.168.1.170

Step 1, get SRS. For detail, read GIT

git clone https://github.com/ossrs/srs cd srs/trunk

Or update the exists code:

git pull

Step 2, build SRS. For detail, read Build

./configure --ffmpeg-tool=on && make

Step 3, config file. For detail, read FFMPEG

Save the bellow as config file, or use conf/ffmpeg.transcode.conf instead:

# 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

./objs/srs -c conf/ffmpeg.conf

Step 5, start encoder. For detail, read FFMPEG

Use FFMPEG to publish stream:

 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:

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

RTMP url is: rtmp://192.168.1.170:1935/live/livestream

User can use vlc to play the RTMP stream.

Or, use online SRS player: srs-player

Note: Please replace all ip 192.168.1.170 to your server ip.

Step 7, play the transcoded stream. For detail, read FFMPEG

RTMP url is: rtmp://192.168.1.170:1935/live/livestream_ff

User can use vlc to play the RTMP stream.

Or, use online SRS player: srs-player-ff

Note: Please replace all ip 192.168.1.170 to your server ip.

Winlin 2014.11