RTMP Ingest

Experimental RTMP ingest for Glimesh.tv

Converts RTMP input into RTP packets, and then works with the Orchestrator to get them where they need to be.

Using stunnel is required since Go does not support PSK based TLS auth.

General Usage

go build

export RTMP_INGEST_GLIMESH_ADDRESS=https://glimesh.tv
export RTMP_INGEST_GLIMESH_CLIENT_ID=some_client_id
export RTMP_INGEST_GLIMESH_CLIENT_SECRET=some_client_secret
# Assumes a stunnel connection setup with proper PSK to orchestrator
export RTMP_INGEST_ORCHESTRATOR_ADDRESS=localhost:18085
./rtmp-ingest

macOS Development

brew install opusfile fdk-aac

Ubuntu / Linux Development

apt install -y pkg-config build-essential libopusfile-dev libfdk-aac-dev libavutil-dev libavcodec-dev libswscale-dev

Helpful FFmpeg Commands

ffmpeg -re -f lavfi \
    -i "testsrc=size=1280x720:rate=60[out0];sine=frequency=1000:sample_rate=48000[out1]" \
    -vf "[in]drawtext=fontsize=96: box=1: [email protected]: boxborderw=5: fontcolor=white: x=(w-text_w)/2: y=((h-text_h)/2)+((h-text_h)/-2): text='Hello from FFmpeg', drawtext=fontsize=96: box=1: [email protected]: boxborderw=5: fontcolor=white: x=(w-text_w)/2: y=((h-text_h)/2)+((h-text_h)/2): text='%{gmtime\:%H\\\\\:%M\\\\\:%S} UTC'[out]" \
    -nal-hrd cbr \
    -metadata:s:v encoder=test \
    -vcodec libx264 \
    -acodec aac \
    -preset veryfast \
    -profile:v baseline \
    -tune zerolatency \
    -bf 0 \
    -g 0 \
    -b:v 6320k \
    -b:a 160k \
    -ac 2 \
    -ar 48000 \
    -minrate 6320k \
    -maxrate 6320k \
    -bufsize 6320k \
    -muxrate 6320k \
    -r 60 \
    -pix_fmt yuv420p \
    -color_range 1 -colorspace 1 -color_primaries 1 -color_trc 1 \
    -flags:v +global_header \
    -bsf:v dump_extra \
    -x264-params "nal-hrd=cbr:min-keyint=2:keyint=2:scenecut=0:bframes=0" \
    -f flv "$RTMP_URL"

Helpful GStreamer Commands

Moving Circle

export RTMP_URL=rtmp://localhost/live/stream-key
gst-launch-1.0 videotestsrc pattern=ball flip=true animation-mode=running-time motion=sweep is-live=true ! timeoverlay ! video/x-raw,format=I420,width=1280,height=720,framerate=60/1 ! x264enc speed-preset=ultrafast tune=zerolatency key-int-max=20 ! flvmux name=flvmux ! rtmpsink location=$RTMP_URL audiotestsrc ! alawenc ! flvmux.

Clock

gst-launch-1.0 videotestsrc is-live=true ! timeoverlay ! video/x-raw,format=I420,width=1280,height=720,framerate=60/1 ! x264enc speed-preset=ultrafast tune=zerolatency key-int-max=20 ! flvmux name=flvmux ! rtmpsink location=$RTMP_URL audiotestsrc ! alawenc ! flvmux.