From 6c6222730ff8a92077998b8386e360a17ca19159 Mon Sep 17 00:00:00 2001
From: L3D <l3d@c3woc.de>
Date: Tue, 25 Feb 2025 23:22:06 +0100
Subject: [PATCH] Adding into outro generator using images

---
 render-chunks.sh | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/render-chunks.sh b/render-chunks.sh
index 15496c1..829784f 100755
--- a/render-chunks.sh
+++ b/render-chunks.sh
@@ -16,6 +16,7 @@ set -euo pipefail
 # After that the script will render the introfile with the first chunk and the
 # last chunk with the outrofile, and then in the last step assemble everything
 # into the final recording with audio normalization.
+# It will also assume, that the intros and outros are pictures...
 
 # This script requires you to have ffmpeg and fzf installed.
 which ffmpeg >/dev/null || (echo "Please install ffmpeg" ; exit 1)
@@ -27,6 +28,13 @@ OUTROS_PATH="$HOME/Dokumente/syncthing/outros"
 CHUNKS_PATH="$HOME/Dokumente/syncthing/"
 OUTPUT_PATH="$HOME/Videos/WK25/rendered"
 
+# temp dir
+WORKDIR=$(mktemp -d)
+function finish {
+  rm -r "$WORKDIR"
+}
+trap finish EXIT
+
 # Select the appropriate files
 SELECTED_INTRO="$(find  "$INTROS_PATH" -type f | sort --reverse --human-numeric-sort | fzf --delimiter / --with-nth -1 --prompt "Intro File:")"
 SELECTED_OUTRO="$(find  "$OUTROS_PATH" -type f | sort --reverse --human-numeric-sort | fzf --delimiter / --with-nth -1 --prompt "Outro File:")"
@@ -37,6 +45,20 @@ FOOBARWTF="$(basename "$SELECTED_INTRO")"
 DEFAULT_OUTPUT_NAME="${FOOBARWTF%.*}"
 read -p "Please enter a name for the outputfile (path and extension will be added automatically): " -i "$DEFAULT_OUTPUT_NAME" -e OUTPUT_NAME
 
+# Function to convert image to video with audio
+convert_image_to_video() {
+    local image_file="$1"
+    local output_video="$2"
+    local duration="$3"
+    local fade_in="$4"
+    local fade_out="$5"
+
+    ffmpeg -loop 1 -t "$duration" -i "$image_file" -f lavfi -i anullsrc=r=48000:cl=stereo \
+        -vf "fade=t=in:st=0:d=$fade_in,fade=t=out:st=$(($duration - $fade_out)):d=$fade_out,format=yuv420p" \
+        -r 50 -c:v libx264 -c:a aac -b:a 192k -t "$duration" "$output_video"
+}
+
+
 # find the start-offset for the first chunk
 read -p "Do you want to play the first chunk ${CHUNKS_ARRAY[0]} to find the start-offset? (y/n) [n]: " PLAY_FIRST_CHUNK
 PLAY_FIRST_CHUNK="${PLAY_FIRST_CHUNK:-n}"
@@ -56,6 +78,22 @@ PLAY_LAST_CHUNK="${PLAY_LAST_CHUNK:-n}"
 read -p "Enter the end-offset in seconds for the last chunk ${CHUNKS_ARRAY[0]} [1]: " END_OFFSET
 END_OFFSET="${END_OFFSET:-1}"
 
+# Check if intro is an image and convert if necessary
+EXT_INTRO="${SELECTED_INTRO##*.}"
+if [[ "$EXT_INTRO" == "png" || "$EXT_INTRO" == "jpg" || "$EXT_INTRO" == "jpeg" ]]; then
+    INTRO_VIDEO="$WORKDIR/intro_converted.mkv"
+    convert_image_to_video "$SELECTED_INTRO" "$INTRO_VIDEO" 4 1 1
+    SELECTED_INTRO="$INTRO_VIDEO"
+fi
+
+# Check if outro is an image and convert if necessary
+EXT_OUTRO="${SELECTED_OUTRO##*.}"
+if [[ "$EXT_OUTRO" == "png" || "$EXT_OUTRO" == "jpg" || "$EXT_OUTRO" == "jpeg" ]]; then
+    OUTRO_VIDEO="$WORKDIR/outro_converted.mkv"
+    convert_image_to_video "$SELECTED_OUTRO" "$OUTRO_VIDEO" 6 1 1
+    SELECTED_OUTRO="$OUTRO_VIDEO"
+fi
+
 cat <<EOT
 
 
@@ -74,6 +112,7 @@ for index in "${!CHUNKS_ARRAY[@]}"
 do
     echo "            + $index: ${CHUNKS_ARRAY[index]}"
 done
+echo "Export: ${OUTPUT_PATH}/${OUTPUT_NAME}.mkv"
 echo ; echo ; echo
 read -p "Do you want to proceed with this configuration? (y/n) [y]" PROCEED
 PROCEED="${PROCEED:-y}"
@@ -81,6 +120,7 @@ PROCEED="${PROCEED:-y}"
 [[ "$PROCEED" == "y" ]] || (echo "aborting"; exit 1)
 echo "doing ffmpeg things here"
 
+# combine the videos...
 ARRAY_LENGTH="${#CHUNKS_ARRAY[@]}"
 if [[ ${ARRAY_LENGTH} -lt 2 ]]
 then
@@ -154,3 +194,5 @@ ffmpeg \
     -c:a aac -b:a 192k \
     -metadata:s:a:0 language=native \
     "${OUTPUT_PATH}/${OUTPUT_NAME}.mkv"
+
+echo "Video Exported to ${OUTPUT_PATH}/${OUTPUT_NAME}.mkv"