From 93fd5a18991587a5f2a6415bc462a426f7a08fd7 Mon Sep 17 00:00:00 2001
From: deflax <daniel@deflax.net>
Date: Mon, 21 Apr 2025 21:59:16 +0300
Subject: [PATCH] rewrite the stream to autodetect the adb port

---
 .gitignore  |  1 +
 README.md   |  4 +--
 android.sh  | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++---
 config.dist |  2 +-
 stream.sh   | 34 --------------------
 5 files changed, 93 insertions(+), 41 deletions(-)
 delete mode 100755 stream.sh

diff --git a/.gitignore b/.gitignore
index 04204c7..8ef4392 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 config
+rec/
diff --git a/README.md b/README.md
index 5135542..d98a814 100644
--- a/README.md
+++ b/README.md
@@ -5,10 +5,10 @@
 
 ### setup scrcpy
 `sudo apt install scrcpy`
-`sudo apt install v4l2loopback-dkms`
+`sudo apt install v4l2loopback-dkms v4l2loopback-utils`
 
 ### v4l2loopback.conf:
-`options v4l2loopback video_nr=7 card_label="android video"`
+`echo 'options v4l2loopback video_nr=5 card_label="android video"' > /etc/modprobe.d/v4l2loopback.conf`
 
 ### set wireless android camera pairing
 1. enable wifi debugging
diff --git a/android.sh b/android.sh
index e2f241a..a7fbbc4 100755
--- a/android.sh
+++ b/android.sh
@@ -1,11 +1,96 @@
 #!/bin/bash
-#
 
 source config
 
-adb connect ${android_camera}:$1
+SCAN_COUNT=0
+SCAN_ATTEMPTS=3
+FFMPEG_LOGLEVEL="repeat+level+info"
 
-scrcpy \
+mkdir -p ./rec/
+
+cleanup()
+{
+  adb_pid=$(ps aux | grep 'adb' | grep ${android} | awk '{print $2}'); 
+  echo "] Killing adb services with pid: ${adb_pid}"
+  kill -9 ${adb_pid}
+  exit
+}
+
+# Trap interrupts and exit instead of continuing the loop
+trap cleanup SIGINT SIGTERM
+
+# check if the android host is even alive
+if ping -c 1 ${android} &> /dev/null
+then
+	echo "] ping success :)"
+else
+	echo "] ping error :("
+	exit 1
+fi
+
+is_correct_port () {
+	# check if port 5555 is open
+	PORT=$(nmap -sT -P0 ${android} -p 5555 | awk -F/ '/tcp open/{print $1}')
+	if [[ $PORT == 5555 ]]; then
+		echo "] port 5555 is open :)"
+		return 0
+	else
+		return 1
+	fi
+}
+
+until is_correct_port || [[ $SCAN_COUNT -eq $SCAN_ATTEMPTS ]]; do
+	# scan and set the port to 5555
+	if [ ! -n "$1" ]; then
+		RANGE="30000-49999"
+	else
+		RANGE="$1"
+	fi
+	echo "] Checking port(s) ${RANGE}"
+
+	adb connect ${android}:$(nmap -sT -P0 ${android} -p${RANGE} | awk -F/ '/tcp open/{print $1}')
+	adb tcpip 5555
+	adb disconnect
+
+	echo -e "\n] $(( SCAN_COUNT++ ))..."
+	sleep 1
+done
+[[ $SCAN_COUNT -eq $SCAN_ATTEMPTS ]] && echo "] could not set the tcpip port :(" && (exit 1)
+
+
+###
+
+adb disconnect
+adb connect ${android}:5555
+
+scrcpy -n \
   --video-source=camera --no-audio --no-video-playback \
   --camera-id=2 --camera-size=1920x1080 --camera-fps=30 --orientation=90 \
-  --v4l2-sink=/dev/video7 
+  --v4l2-sink=/dev/video5 &
+
+while :
+do
+        CURRENTDATE=`date +"%Y_%m_%d_%T"`
+        echo "] ffmpeg start at ${CURRENTDATE}"
+
+        #calf plugins
+        #input_audio_filter="-af lv2=p=http\\\\://calf.sourceforge.net/plugins/Gate:c=threshold=0.04010706|knee=8|range=0.03148599, lv2=http\\\\://calf.sourceforge.net/plugins/Compressor:c=knee=8|threshold=0.125, lv2=http\\\\://calf.sourceforge.net/plugins/Limiter:c=level_out=0.71697748|limit=0.62763602"
+
+        #load normalization
+        #output_audio_filter="-filter:a loudnorm"
+
+        ffmpeg -hide_banner -loglevel ${FFMPEG_LOGLEVEL} -threads:v 2 -threads:a 8 -filter_threads 2 \
+        -thread_queue_size 512 -f v4l2 -framerate 30 -pix_fmt yuv420p -i /dev/video5 \
+        -thread_queue_size 512 -f alsa -ac 2 -i plughw:CARD=USB ${input_audio_filter} \
+        -bsf:a aac_adtstoasc -c:a aac -ac 2 -b:a 192k ${output_audio_filter} \
+        -init_hw_device vaapi=va:/dev/dri/renderD128 -filter_hw_device va \
+        -vf 'format=nv12,hwupload' \
+        -c:v h264_vaapi -b:v 6000k -minrate:v 6000k -maxrate:v 6000k -bufsize:v 6000k \
+        -r:v 30 -g:v 120 -bf:v 3 -refs:v 16 \
+        -f tee "[f=mpegts]${srt_output}|[f=matroska]local_recording_${CURRENTDATE}.mkv"
+
+        #CURRENTDATE=`date +"%Y_%m_%d_%T"`
+        echo "] ffmpeg end at ${CURRENTDATE}"
+        sleep 5
+done
+
diff --git a/config.dist b/config.dist
index 035e991..a1988b6 100644
--- a/config.dist
+++ b/config.dist
@@ -1,2 +1,2 @@
-android_camera=192.168.0.123
+android=192.168.0.123
 srt_output="srt://CHANGEME:6000?mode=caller&transtype=live&pkt_size=1316&streamid=CHANGEME.stream,mode:publish,token:CHANGEME"
diff --git a/stream.sh b/stream.sh
deleted file mode 100755
index 5ced69a..0000000
--- a/stream.sh
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/bin/bash
-
-echo "Press CTRL+C to exit"
-
-source config
-LOGLEVEL="debug"
-LOGLEVEL="repeat+level+info"
-
-while :
-do
-	CURRENTDATE=`date +"%Y-%m-%d %T"`
-	echo Start at ${CURRENTDATE}
-
-	#calf plugins
-	#input_audio_filter="-af lv2=p=http\\\\://calf.sourceforge.net/plugins/Gate:c=threshold=0.04010706|knee=8|range=0.03148599, lv2=http\\\\://calf.sourceforge.net/plugins/Compressor:c=knee=8|threshold=0.125, lv2=http\\\\://calf.sourceforge.net/plugins/Limiter:c=level_out=0.71697748|limit=0.62763602" 
-
-	#load normalization
-	#output_audio_filter="-filter:a loudnorm" 
-	
-        ffmpeg -hide_banner -loglevel ${LOGLEVEL} -threads:v 2 -threads:a 8 -filter_threads 2 \
-        -thread_queue_size 512 -f v4l2 -framerate 30 -pix_fmt yuv420p -i /dev/video7 \
-        -thread_queue_size 512 -f alsa -ac 2 -i plughw:CARD=USB ${input_audio_filter} \
-        -bsf:a aac_adtstoasc -c:a aac -ac 2 -b:a 192k ${output_audio_filter} \
-        -init_hw_device vaapi=va:/dev/dri/renderD128 -filter_hw_device va \
-        -vf 'format=nv12,hwupload' \
-        -c:v h264_vaapi -b:v 6000k -minrate:v 6000k -maxrate:v 6000k -bufsize:v 6000k \
-        -r:v 30 -g:v 120 -bf:v 3 -refs:v 16 \
-        -f mpegts ${srt_output}
-
-	CURRENTDATE=`date +"%Y-%m-%d %T"`
-	echo End at ${CURRENTDATE}
-	sleep 5
-done
-