From 27f1da68872b32708234108f64ac92ebcf57bf49 Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Thu, 27 Apr 2017 20:17:58 +0200
Subject: Fix scale video and apply watermark, and rename capture+encode+stream
→ capture+edit+encode+stream.
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---
bin/capture+edit+encode+stream | 46 ++++++++++++++++++++++++++++++++++++++++++
bin/capture+encode+stream | 39 -----------------------------------
2 files changed, 46 insertions(+), 39 deletions(-)
create mode 100755 bin/capture+edit+encode+stream
delete mode 100755 bin/capture+encode+stream
diff --git a/bin/capture+edit+encode+stream b/bin/capture+edit+encode+stream
new file mode 100755
index 0000000..fd143c2
--- /dev/null
+++ b/bin/capture+edit+encode+stream
@@ -0,0 +1,46 @@
+#!/bin/sh
+
+set -e
+
+AINPUT=hw:0
+VINPUT=/dev/fw1
+LOGO=../../content/icon_small.png
+
+HOST=${1:-morla}
+if [ "$HOST" = "$(hostname --short)" ]; then
+ IP=127.0.0.1
+else
+ IP=$(host "$HOST" | grep -Po 'address \K\S+')
+fi
+
+FIRSTPORT=${2:-5002} # even number - next 3 ports used too
+
+ACHANNELS=2
+AFRAMERATE=48000
+ABITRATE=32000
+
+HEIGHT=360
+VBITRATE=256000
+
+# based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming
+# + scale+watermark trick based on http://stackoverflow.com/a/10937357
+# + Add 1s latency (deadline)
+# + Use same RTP payload types as GStreamer
+ffmpeg -hide_banner -threads auto -re \
+ -f alsa -sample_rate "$AFRAMERATE" -channels "$ACHANNELS" -thread_queue_size 1024 -i "$AINPUT" \
+ -f libdc1394 -video_size 640x480 -framerate 15 -thread_queue_size 256 -i "$VINPUT" \
+ -i "$LOGO" \
+ -filter_complex \
+ "[1:v]scale=-1:$HEIGHT[bg];
+ [bg][2:v]overlay=main_w-overlay_w-20:main_h-overlay_h-20[v]" \
+ -map '0:a' \
+ -codec:a libopus -ac "$ACHANNELS" -ar "$AFRAMERATE" -b:a "$ABITRATE" \
+ -f rtp -payload_type 111 "rtp://$IP:$FIRSTPORT?pkt_size=1200" \
+ -map '[v]' \
+ -pix_fmt yuv420p \
+ -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used 15 \
+ -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \
+ -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \
+ -max-intra-rate 0 \
+ -qmin 4 -qmax 56 \
+ -f rtp -payload_type 100 "rtp://$IP:$((FIRSTPORT+2))?pkt_size=1200"
diff --git a/bin/capture+encode+stream b/bin/capture+encode+stream
deleted file mode 100755
index 740e2f3..0000000
--- a/bin/capture+encode+stream
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/sh
-
-set -e
-
-AINPUT=hw:0
-VINPUT=/dev/fw1
-
-HOST=${1:-morla}
-if [ "$HOST" = "$(hostname --short)" ]; then
- IP=127.0.0.1
-else
- IP=$(host "$HOST" | grep -Po 'address \K\S+')
-fi
-
-FIRSTPORT=${2:-5002} # even number - next 3 ports used too
-
-ACHANNELS=2
-AFRAMERATE=48000
-ABITRATE=32000
-
-VBITRATE=256000
-
-# based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming
-# + Add 1s latency (deadline)
-# + Use same RTP payload types as GStreamer
-ffmpeg -hide_banner -threads auto -re \
- -f alsa -sample_rate "$AFRAMERATE" -channels "$ACHANNELS" -thread_queue_size 1024 -i "$AINPUT" \
- -f libdc1394 -video_size 640x480 -framerate 15 -thread_queue_size 256 -i "$VINPUT" \
- -map '0:a' \
- -codec:a libopus -ac "$ACHANNELS" -ar "$AFRAMERATE" -b:a "$ABITRATE" \
- -f rtp -payload_type 111 "rtp://$IP:$FIRSTPORT?pkt_size=1200" \
- -map '0:v' \
- -pix_fmt yuv420p \
- -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used 15 \
- -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \
- -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \
- -max-intra-rate 0 \
- -qmin 4 -qmax 56 \
- -f rtp -payload_type 100 "rtp://$IP:$((FIRSTPORT+2))?pkt_size=1200"
--
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