WIP

README.md

@@ -7,6 +7,7 @@ These scripts rely on :
 - `ffmpeg` to generate the audio/video streams. Tested with ffmpeg versions:  
   - 4.1.6
   - 4.2.4
+  - 4.3.5
 - `bc` to compute the encoding buffer size from the specified video bitrate
 
 To install the dependencies on Debian 10 (Buster):  
@@ -22,6 +23,8 @@ There are 4 main scripts :
     send live stream and save a copy to file with static pattern, time overlay (seconds from start) and sine wave audio
 - stream_random_noise.sh  
     send live stream and save a copy to file with random video, time overlay (seconds elapsed from start and local timestamp) and sine wave audio
+- stream_v4l_device.sh  
+    send a continuous live stream and save a copy to files, one every 10 minutes, with video from a V4L2 device, a timestamp overlay and sine wave audio or camera audio (see comments in the file)
 
 Run the scripts with no parameter for help.
 
@@ -44,5 +47,3 @@ The other scripts are helpers that are just sortcuts to call the main scripts wi
 - stream_random_1080p_3600s.sh
 - stream_random_720p_300s.sh
 - stream_random_720p_3600s.sh
-
-

stream_v4l_device.sh

@@ -0,0 +1,97 @@
+#!/bin/bash
+
+REPLAY_RESOLUTION=1280x720
+LIVE_RESOLUTION=854x480
+LIVE_AVBR=1024
+LIVE_MVBR=1280
+REPLAY_AVBR=2048
+REPLAY_MVBR=3072
+ABITRATE=128
+V4LDEVICE=0
+FPS=10
+
+if [[ $# -lt 4 ]] ; then
+  echo "Not enough arguments supplied" >&2
+  echo "You need to pass the PeerTube server name as the " >&2
+  echo "first parameter the rtmp port as the second, the" >&2
+  echo "streaming key as the third and the v4l2 device as the fourth" >&2
+  echo " " >&2
+  echo "syntax: " >&2
+  echo "  $(basename $0) <peertube-server> <rtmp port> <streaming-key> <v4ldevice>" >&2
+  echo " " >&2
+  echo "Example :" >&2
+  echo "  `basename $0` tube.example.com 1935 69ac2d29-eba4-4d5f-a3a6-6047e6768ffb 0" >&2
+  exit 1
+fi
+
+URL=rtmp://$1:$2/live/$3
+
+V4LDEVICE=$4
+
+KEYFRAMEINTERVAL=$(echo "2*${FPS}" | bc)
+
+BUFFERSIZE=$(echo "2*${VBITRATE}" | bc)
+
+
+
+
+FILENAME=${1}-cam${V4LDEVICE}
+echo " "
+echo Will stream to $URL
+echo and save a copy of the data file :
+echo $FILENAME
+
+# A la ligne xx, utiliser ces lignes pour avoir un son de test généré par ffmpeg : 
+# -f lavfi -i aevalsrc="(1-min(1\,mod(floor(5*t)\,50)))*0.1*sin(8*PI*(360-2.5/2)*t)+0.1*sin(2*PI*(360-2.5/2)*t)|(1-min(1\,mod(floor(5*t)\,50)))*0.1*sin(8*PI*(360+2.5/2)*t)+0.1*sin(2*PI*(360+2.5/2)*t):sample_rate=48000" \
+# -ar 48000 \
+# -channel_layout stereo \
+# -c:a aac -b:a ${ABITRATE}k \
+
+# A la ligne xx, utiliser ces lignes pour avoir le son de la caméra : 
+# -f alsa -ac 2 -i hw:CARD=CAMERA,DEV=${V4LDEVICE} \
+# -c:a copy \
+
+# A la ligne xx, utiliser ces lignes pour avoir le son d'une web radio : 
+# -f aac -ac 2 -i http://91.121.159.124:8000/eko-des-garrigues-48k.aac \
+# -c:a copy \
+
+
+ffmpeg \
+-loglevel level \
+-y \
+-f v4l2 -framerate 30 -video_size ${REPLAY_RESOLUTION} -input_format mjpeg -i /dev/video${V4LDEVICE} \
+-f aac -ac 2 -i http://91.121.159.124:8000/eko-des-garrigues-48k.aac \
+-c:a copy \
+-filter_complex "[0:v]drawtext='font=DejaVuSansMono:text=%{pts}: fontcolor=white: fontsize=h/24: box=1: boxcolor=black@0.43: boxborderw=5: x=mod(floor(t/10+1)\,2)*mod(t*(w-text_w)/10\,w-text_w)+mod(floor(t/10)\,2)*(w-text_w-mod(t*(w-text_w)/10\,w-text_w)): y=text_h/2', drawtext='font=DejaVuSansMono:text=%{localtime}: fontcolor=white: fontsize=h/20: box=1: boxcolor=black@0.43: boxborderw=5: x=text_h: y=h-3*text_h/2', split=2[out1][out2]" \
+-flags +global_header -preset superfast \
+-map '[out1]' -pix_fmt yuv420p -s ${LIVE_RESOLUTION} -c:v libx264 -b:v ${LIVE_AVBR}k -maxrate:v ${LIVE_MVBR}k -g:v ${KEYFRAMEINTERVAL} \
+-keyint_min:v ${KEYFRAMEINTERVAL} -r:v ${FPS} -x264-params:v scenecut=0:open_gop=0 -bufsize:v 4096k -profile:v high \
+-map 1:a \
+-f flv ${URL} \
+-map '[out2]' -pix_fmt yuv420p -s ${REPLAY_RESOLUTION} -c:v libx264 -b:v ${LIVE_AVBR}k -maxrate:v ${LIVE_MVBR}k -g:v ${KEYFRAMEINTERVAL} \
+-keyint_min:v ${KEYFRAMEINTERVAL} -r:v ${FPS} -x264-params:v scenecut=0:open_gop=0 -bufsize:v 8192k -profile:v high \
+-map 1:a \
+-f matroska -f segment -segment_time 10:00 -reset_timestamps 1 -strftime 1 "${FILENAME}_%Y-%m-%d_%H-%M-%S.mkv"
+
+
+
+# Notes
+# Commande ffmpeg utilisée par own_cast
+#/usr/bin/ffmpeg -hide_banner -loglevel warning \
+#-fflags +genpts \
+#-i pipe:0 -map v:0 \
+#-c:v:0 libx264 -b:v:0 1008k -maxrate:v:0 1088k -g:v:0 48 -keyint_min:v:0 48 -r:v:0 24 \
+#-x264-params:v:0 scenecut=0:open_gop=0 -bufsize:v:0 1088k -profile:v:0 high \
+#-map a:0? -c:a:0 copy \
+#-preset superfast \
+#-var_stream_map v:0,a:0 \
+#-f hls -hls_time 2 -hls_list_size 15 -hls_flags program_date_time+independent_segments+omit_endlist \
+#-segment_format_options mpegts_flags=mpegts_copyts=1 \
+#-tune zerolatency \
+#-pix_fmt yuv420p \
+#-sc_threshold 0 \
+#-master_pl_name stream.m3u8 \
+#-hls_segment_filename http://127.0.0.1:45627/%v/stream--KmjKxb4g-%d.ts \
+#-max_muxing_queue_size 400 \
+#-method PUT http://127.0.0.1:45627/%v/stream.m3u8
+