blob: aaadd3879fad9ca8d7acba2b446c9c20dd92592e (
plain)
- #!/bin/sh
- # Send RTP video and audio streams
- set -e
- RECIP=${RECIP:-$1} # destination host - default: use multicast group
- VDEVICES=${2:-$(find /dev -maxdepth 1 -type c -name 'video*' | sort)}
- #ADEVICES=${3:-$(arecord -L | grep -Po '^hw:\S+')}
- #ADEVICES=${3:-$(arecord -L | grep -Pom1 '^hw:\S+')}
- ADEVICES=${3:-} # FIXME: Detect/blacklist and skip faulty devices
- VFORMAT=${VFORMAT:-$4} # H264 VP8 RAW - default: RAW
- AFORMAT=${AFORMAT:-$5} # AMR OPUS RAW - default: RAW
- set -u
- # set multicast groups (also for recorder host) if camera host is wildcard
- [ -n "$RECIP" ] || RECMIP=239.255.0.1
- [ -n "$RECIP" ] || CAMMIP=239.255.0.2
- RECHOST="${RECIP:+host=$RECIP}${RECMIP:+host=$RECMIP auto-multicast=true}"
- CAMHOST="${CAMMIP:+address=$CAMMIP auto-multicast=true}"
- AUDIORATE=48000
- # * http://stackoverflow.com/a/42237307
- ABUFFERS=20000
- HEIGHT=240
- FRAMERATE=25
- ACAPS=audio/x-raw,rate="$AUDIORATE",channels=2,depth=16
- VCAPS=video/x-raw,height="$HEIGHT"
- # * force threads using queues - see http://stackoverflow.com/a/30738533
- # * generous queue sizes inspired by https://wiki.xiph.org/GST_cookbook
- QUEUE=" queue max-size-bytes=100000000 max-size-time=0"
- case "$AFORMAT" in
- AMR)
- AENC="amrnbenc ! $QUEUE ! rtpamrpay"
- ;;
- OPUS)
- AENC="opusenc ! $QUEUE ! rtpopuspay"
- ;;
- RAW|'')
- AENC="rtpL16pay"
- ;;
- *)
- echo "ERROR: Unsupported audio format: \"$AFORMAT\""
- exit 1
- ;;
- esac
- case "$VFORMAT" in
- H264)
- # * let x264 use low-latency sliced-threads (i.e. don't disable treads)
- VENC="x264enc speed-preset=ultrafast tune=zerolatency bitrate=800 byte-stream=true key-int-max=15 intra-refresh=true option-string=\"slice-max-size=8192:vbv-maxrate=80:vbv-bufsize=10\" ! video/x-h264,profile=baseline ! $QUEUE ! rtph264pay"
- ;;
- VP8)
- VENC="vp8enc cpu-used=10 threads=2 deadline=10000 ! video/x-vp8 ! $QUEUE ! rtpvp8pay"
- ;;
- RAW|'')
- VENC="rtpvrawpay"
- ;;
- *)
- echo "ERROR: Unsupported video format: \"$VFORMAT\""
- exit 1
- ;;
- esac
- stream() {
- ID=$1
- SRC=$2
- echo \
- $SRC \
- ! "rtpbin.send_rtp_sink_$ID" \
- rtpbin."send_rtp_src_$ID" ! queue \
- ! udpsink name="rtp_sink_$ID" port=$((5000+ID-1)) $RECHOST \
- rtpbin.send_rtcp_src_$ID \
- ! udpsink name="rtcp_sink_$ID" port=$((5010+ID-1)) $RECHOST sync=false async=false \
- udpsrc name="rtp_src_$ID" port=$((5020+ID-1)) $CAMHOST \
- ! rtpbin."recv_rtcp_sink_$ID"
- }
- gst-launch-1.0 -v \
- rtpbin name=rtpbin \
- $(n=0;\
- for dev in $ADEVICES; do n=$((n+1)); stream "$n" "alsasrc device=$dev buffer-time=$ABUFFERS ! $QUEUE ! audioconvert ! $QUEUE ! $AENC ! $QUEUE"; done;\
- for dev in $VDEVICES; do n=$((n+1)); stream "$n" "v4l2src device=$dev ! $QUEUE ! videoconvert ! $VCAPS ! $QUEUE ! $VENC ! $QUEUE"; done;\
- )
- set -e
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