Building FFmpeg from source for HLS. Using V4L2 M2M encoder.

chudsaviet · chudsaviet · commit c8045f46959a · 2022-07-10T23:07:16.000-07:00
diff --git a/src/modules/octopi/filesystem/root/etc/systemd/system/ffmpeg_hls.service b/src/modules/octopi/filesystem/root/etc/systemd/system/ffmpeg_hls.service
@@ -18,7 +18,7 @@ ExecStartPre=/bin/chown -R webcam:webcam /run/webcam
 ExecStartPre=/bin/chmod -R 0755 /run/webcam
 
 ExecStart=/usr/bin/sudo -u webcam \
-    /usr/bin/ffmpeg \
+    /opt/ffmpeg-hls/ffmpeg \
     \
     -framerate 30 -video_size 640x480 \
     -i /dev/video0 \
@@ -28,7 +28,7 @@ ExecStart=/usr/bin/sudo -u webcam \
     -f image2 -r 1 -update 1 -atomic_writing 1 \
     /run/webcam/jpeg/frame.jpg \
     \
-    -c:v h264_omx -profile:v high \
+    -c:v h264_v4l2m2m -level:v 4.0 \
     -b:v 1264k -flags +cgop \
     -g 30 -keyint_min 30 \
     \
@@ -40,7 +40,7 @@ ExecStart=/usr/bin/sudo -u webcam \
     \
     -vf scale=-1:240 \
     \
-    -c:v h264_omx -profile:v high \
+    -c:v h264_v4l2m2m -level:v 4.0 \
     -b:v 240k -flags +cgop \
     -g 30 -keyint_min 30 \
     \
diff --git a/src/modules/octopi/start_chroot_script b/src/modules/octopi/start_chroot_script
@@ -11,14 +11,16 @@ export LC_ALL=C
 
 source /common.sh
 
-if [ -n "$OCTOPI_APTMIRROR" ]; 
+if [ -n "$OCTOPI_APTMIRROR" ];
 then
     echo "Switching apt mirror in /etc/apt/sources.list to $OCTOPI_APTMIRROR"
     cp /etc/apt/sources.list /etc/apt/sources.list.backup
     sed -i "s@http://raspbian.raspberrypi.org/raspbian/@$OCTOPI_APTMIRROR@g" /etc/apt/sources.list
 fi
 
 WEBCAM_USER=webcam
+FFMPEG_HLS_COMMIT=c6fdbe26ef30fff817581e5ed6e078d96111248a
+FFMPEG_HLS_DIR=/opt/ffmpeg-hls
 
 ### Script ####
 
@@ -66,7 +68,7 @@ pushd /home/"${BASE_USER}"
         apt-get -y --force-yes install libjpeg8-dev
       fi
     fi
-    
+
     apt-get -y --force-yes --no-install-recommends install imagemagick ffmpeg libv4l-dev
 
     wget $OCTOPI_MJPGSTREAMER_ARCHIVE -O mjpg-streamer.zip
@@ -120,11 +122,32 @@ EOT
   # FFMPEG HLS
   if [ "$OCTOPI_INCLUDE_FFMPEG_HLS" == "yes" ]
   then
-    apt-get install -y --force-yes --no-install-recommends ffmpeg nginx
+    apt-get install -y --force-yes --no-install-recommends nginx
+
+    FFMPEG_BUILD_DIR=$(mktemp -d)
+    pushd ${FFMPEG_BUILD_DIR}
+      FFMPEG_ARCHIVE=ffmpeg.tar.gz
+      wget https://api.github.com/repos/FFmpeg/FFmpeg/tarball/${FFMPEG_COMMIT} -O ${FFMPEG_ARCHIVE}
+      tar xvzf ${FFMPEG_ARCHIVE}
+      cd FFmpeg*
+      ./configure \
+        --disable-doc \
+        --disable-htmlpages \
+        --disable-manpages \
+        --disable-podpages \
+        --disable-txtpages \
+        --disable-ffplay \
+        --disable-ffprobe
+      make -j$(nproc)
+      mkdir -p ${FFMPEG_HLS_DIR}
+      cp ffmpeg ${FFMPEG_HLS_DIR}
+    popd
+    rm -r ${FFMPEG_BUILD_DIR}
+
     useradd ${WEBCAM_USER}
     usermod -aG video ${WEBCAM_USER}
   fi
-  
+
   #CuraEngine
   if [ "$OCTOPI_INCLUDE_CURAENGINE" == "yes" ]
   then
@@ -151,7 +174,7 @@ EOT
 
   # fetch current yq build and install to /usr/local/bin
   wget -O yq $OCTOPI_YQ_DOWNLOAD && chmod +x yq && mv yq /usr/local/bin
-  
+
 popd
 
 #Make sure user pi / ${BASE_USER} has access to serial ports
@@ -197,13 +220,13 @@ do
 done
 
 for ip in $(hostname -I);
-do 
+do
     echo "    http://$ip"
 done
 
 echo
 echo "https is also available, with a self-signed certificate."
-echo 
+echo
 echo "------------------------------------------------------------"
 echo
 EOT
@@ -276,7 +299,7 @@ systemctl_if_exists enable streamer_select.service
 if [ "$OCTOPI_INCLUDE_MJPGSTREAMER" == "yes" ]
 then
   systemctl_if_exists enable webcamd.service
-### use legacy camera stack on bullseye for now  
+### use legacy camera stack on bullseye for now
   if grep "camera_auto_detect=1" /boot/config.txt
     then
         sed -i "s/camera_auto_detect=1/camera_auto_detect=0/g" /boot/config.txt
@@ -304,7 +327,7 @@ apt-get -y install avrdude
 apt-get clean
 apt-get autoremove -y
 
-if [ -n "$OCTOPI_APTMIRROR" ]; 
+if [ -n "$OCTOPI_APTMIRROR" ];
 then
     echo "Reverting /etc/apt/sources.list"
     mv /etc/apt/sources.list.backup /etc/apt/sources.list

Original file line number	Diff line number	Diff line change
`@@ -18,7 +18,7 @@ ExecStartPre=/bin/chown -R webcam:webcam /run/webcam`
`18`	`18`	`ExecStartPre=/bin/chmod -R 0755 /run/webcam`
`19`	`19`
`20`	`20`	`ExecStart=/usr/bin/sudo -u webcam \`
`21`		`- /usr/bin/ffmpeg \`
	`21`	`+ /opt/ffmpeg-hls/ffmpeg \`
`22`	`22`	`\`
`23`	`23`	`-framerate 30 -video_size 640x480 \`
`24`	`24`	`-i /dev/video0 \`
`@@ -28,7 +28,7 @@ ExecStart=/usr/bin/sudo -u webcam \`
`28`	`28`	`-f image2 -r 1 -update 1 -atomic_writing 1 \`
`29`	`29`	`/run/webcam/jpeg/frame.jpg \`
`30`	`30`	`\`
`31`		`- -c:v h264_omx -profile:v high \`
	`31`	`+ -c:v h264_v4l2m2m -level:v 4.0 \`
`32`	`32`	`-b:v 1264k -flags +cgop \`
`33`	`33`	`-g 30 -keyint_min 30 \`
`34`	`34`	`\`
`@@ -40,7 +40,7 @@ ExecStart=/usr/bin/sudo -u webcam \`
`40`	`40`	`\`
`41`	`41`	`-vf scale=-1:240 \`
`42`	`42`	`\`
`43`		`- -c:v h264_omx -profile:v high \`
	`43`	`+ -c:v h264_v4l2m2m -level:v 4.0 \`
`44`	`44`	`-b:v 240k -flags +cgop \`
`45`	`45`	`-g 30 -keyint_min 30 \`
`46`	`46`	`\`