CI ARM: enable holepunch,speex,ews and zfec

- cmake needs to be held in a specific version because the more current
  version doesn't work with chrooted qemu-user-static arm

.github/scripts/Linux/arm/bootstrap.sh

@@ -28,11 +28,15 @@ if grep -q Raspbian /etc/os-release; then # https://bugs.launchpad.net/ubuntu/+s
         apt -y update
 fi
 
+apt -y install cmake=3.13.4-1 cmake-data=3.13.4-1 # 3.16 in the above added repository is broken with chrooted qemu-user-static
+
 apt -y install build-essential git pkg-config autoconf automake libtool
-apt -y install libcurl4-openssl-dev libsoxr-dev libssl-dev
+apt -y install libcurl4-openssl-dev libsoxr-dev libspeexdsp-dev libssl-dev
 apt -y install libasound2-dev portaudio19-dev libjack-dev
 apt -y install libglew-dev libglfw3-dev libglm-dev
 
+/.github/scripts/install-common-deps.sh
+
 # FFmpeg
 if [ "$ARCH" = armhf ]; then # Raspbian - build own FFmpeg with OMX camera patch
         apt -y install libraspberrypi-dev libdrm-dev

.github/scripts/Linux/arm/build.sh

@@ -10,12 +10,12 @@ export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:${PKG_CONFIG_PATH:+":$PKG_CONFIG
 ARCH=$(dpkg --print-architecture)
 APPNAME=UltraGrid-latest-${ARCH}.AppImage
 
-set -- --enable-plugins --enable-openssl --enable-soxr                                                  # general
+set -- --enable-plugins --enable-openssl --enable-soxr --enable-speexdsp                                # general
 set -- "$@" --enable-alsa --enable-jack --enable-jack-transport                                         # audio
 set -- "$@" --enable-decklink --enable-file --enable-rtsp --enable-screen=x11 --enable-swmix --enable-v4l2 # vcap
 set -- "$@" --enable-gl-display --enable-panogl_disp --enable-sdl                                       # display
 set -- "$@" --enable-libavcodec --enable-rtdxt --enable-libswscale --enable-uyvy                        # compression
-set -- "$@" --enable-blank --enable-scale --enable-testcard-extras                                      # extras (pp. etc)
+set -- "$@" --enable-blank --enable-holepunch --enable-pcp --enable-scale --enable-sdp-http --enable-testcard-extras --enable-zfec # extras (pp. etc)
 if [ "$ARCH" = armhf ]; then # Raspbian
         set -- "$@" --enable-lavc-hw-accel-rpi4
 fi

.github/scripts/install-common-deps.sh

@@ -7,7 +7,9 @@ case "$(uname -s)" in
                 ;;
 
         *)
-                sudo="sudo"
+                if [ "$(id -u)" -ne 0 ]; then
+                        sudo="sudo"
+                fi
                 ;;
 esac
 
@@ -15,6 +17,8 @@ if ! command -v nproc >/dev/null; then
         nproc() { sysctl -n hw.logicalcpu; } # mac
 fi
 
+is_arm() { expr "$(dpkg --print-architecture)" : arm >/dev/null; }
+
 # for Win only download here, compilation is handled differently
 download_install_cineform() {(
         cd "$GITHUB_WORKSPACE"
@@ -62,7 +66,9 @@ install_zfec() {(
         ${sudo:+"$sudo" }mv zfec/zfec /usr/local/src
 )}
 
-download_install_cineform
+if ! is_arm; then
+        download_install_cineform
+fi
 install_ews
 install_juice
 install_pcp