more-examples

compose-gstreamer.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+gst-launch-1.0 \
+    compositor name=comp sink_0::xpos=0 sink_0::ypos=0 sink_1::xpos=1920 sink_1::ypos=0 ! \
+    'video/x-raw(memory:NVMM),width=3840,height=1080,framerate=60/1,format=I420' ! \
+    nvv4l2h264enc bitrate=10000000 control-rate=1 idrinterval=1 tuning-info-id=3 preset-id=1 profile=0 ! \
+    h264parse config-interval=1 ! \
+    mpegtsmux ! \
+    rtpmp2tpay ! \
+    udpsink host=239.239.239.3 port=2055 auto-multicast=true sync=false async=false qos=false \
+\
+    decklinkvideosrc device-number=0 connection=1 mode=1080p60 drop-no-signal-frames=true ! \
+    nvvideoconvert ! \
+    'video/x-raw(memory:NVMM),format=I420' ! \
+    comp.sink_0 \
+\
+    decklinkvideosrc device-number=1 connection=1 mode=1080p60 drop-no-signal-frames=true ! \
+    nvvideoconvert ! \
+    'video/x-raw(memory:NVMM),format=I420' ! \
+    comp.sink_1

compose-playback.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+gst-launch-1.0 udpsrc address=239.239.239.3 port=2055 ! \
+    "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP2T" ! \
+    rtpmp2tdepay ! \
+    tsdemux ! \
+    h264parse ! \
+    avdec_h264 ! \
+    videoconvert ! \
+    tee name=t \
+\
+    t. ! queue ! videocrop left=0 right=1920 top=0 bottom=0 ! \
+    autovideosink sync=false \
+\
+    t. ! queue ! videocrop left=1920 right=0 top=0 bottom=0 ! \
+    autovideosink sync=false

ffmpeg-psnr-check.sh

@@ -13,4 +13,11 @@ fi
 
 #this script checks the PSNR between two video streams using ffmpeg
 # one video stream is the reference and the other is the test stream both are recorded files
-ffmpeg -i "$1" -i "$2" -filter_complex "psnr" -f null /dev/null
+ffmpeg -f rawvideo -video_size 1920x1080 -pixel_format yuv444p -color_range pc -framerate 30 -i "$1" -i "$2" -filter_complex "psnr" -f null /dev/null
+# example working:
+# ffmpeg -f rawvideo -video_size 1920x1080 -pixel_format yuv444p -color_range pc -framerate 30 -i base.yuv -i test.mp4 -filter_complex "psnr" -f null /dev/null 
+
+#this script checks the SSIM between two video streams using ffmpeg
+ffmpeg -f rawvideo -video_size 1920x1080 -pixel_format yuv444p -color_range pc -framerate 30 -i "$1" -i "$2" -filter_complex "[0:v][1:v]ssim=stats_file=ssim_results.txt" -f null /dev/null
+
+# ffmpeg -f rawvideo -video_size 1920x1080 -pixel_format yuv422p -color_range pc -framerate 30 -i base.yuv -i test.mp4 -filter_complex "[0:v][1:v]ssim=stats_file=ssim_results.txt" -f null /dev/null

gstreamer-record.sh

@@ -21,10 +21,10 @@ fi
 if [ "$3" == "DEBUG" ]; then
     gst-launch-1.0 -e \
         videotestsrc pattern=smpte ! \
-        capsfilter caps="video/x-raw,format=RGBA,width=1920,height=1080,framerate=30/1" ! \
+        capsfilter caps="video/x-raw,format=UYVY,width=1920,height=1080,framerate=30/1" ! \
         videoconvert ! queue ! tee name=t \
         t. ! queue ! filesink location="$1" \
-        t. ! queue ! x264enc bitrate=5000 speed-preset=ultrafast tune=zerolatency ! h264parse ! mpegtsmux ! filesink location="$2"
+        t. ! queue ! x264enc bitrate=20000 speed-preset=ultrafast tune=zerolatency ! h264parse ! mpegtsmux ! filesink location="$2"
     exit 0
 fi
 
@@ -35,4 +35,4 @@ gst-launch-1.0 -e \
     mode=auto \
     drop-no-signal-frames=true ! videoconvert ! queue ! tee name=t \
     t. ! queue ! mpegtsmux ! filesink location="$1" \
-    t. ! queue ! x264enc bitrate=5000 speed-preset=ultrafast tune=zerolatency ! mpegtsmux ! filesink location="$2"
+    t. ! queue ! x264enc bitrate=20000 speed-preset=ultrafast tune=zerolatency ! mpegtsmux ! filesink location="$2"