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Adding render chunks

This commit is contained in:
L3D 2025-03-01 19:21:47 +01:00
parent 85babf1f4b
commit fbe67bb400
Signed by: L3D
GPG Key ID: CD08445BFF4313D1
1 changed files with 71 additions and 23 deletions

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@ -53,9 +53,32 @@ convert_image_to_video() {
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"
if [[ $fade_in == 0 ]]
then
ffmpeg -loop 1 \
-framerate 50 \
-t "$duration" \
-i "$image_file" -f lavfi \
-i anullsrc=r=48000:cl=stereo \
-vf "fade=t=out:st=$(($duration - $fade_out)):d=$fade_out,format=pix_fmts=yuv420p,fps=50" \
-c:a aac -b:a 192k \
-c:v libx264 -threads 0 -pix_fmt yuv420p -crf 18 \
-profile:v high -level 4.1 -disposition default -color_range tv \
-metadata:s:a:0 language=native \
-t "$duration" "$output_video"
else
ffmpeg -loop 1 \
-framerate 50 \
-t "$duration" \
-i "$image_file" -f lavfi \
-i anullsrc=r=48000:cl=stereo \
-filter_complex "fade=t=in:st=0:d=$fade_in,format=pix_fmts=yuv420p,fps=50" \
-c:a aac -b:a 192k \
-c:v libx264 -threads 0 -pix_fmt yuv420p -crf 18 \
-profile:v high -level 4.1 -disposition default -color_range tv \
-metadata:s:a:0 language=native \
-t "$duration" "$output_video"
fi
}
@ -104,7 +127,7 @@ I will be rendering with the following configuration:
+ Video Chunks:
+ First chunk: ${CHUNKS_ARRAY[0]}
Starting at second ${START_OFFSET}
+ Last chunk: ${CHUNKS_ARRAY[-1]}
+ Last chunk: ${CHUNKS_ARRAY[$((${#CHUNKS_ARRAY[@]} - 1))]}
Ending at second ${END_OFFSET}
+ All chunks:
EOT
@ -137,39 +160,64 @@ function finish {
trap finish EXIT
# STEP 2
# introfile with first chunk and crossfade encode
# Dauer des Intros ermitteln
echo "==== STEP 2 ===="
DURATION_INTRO=$(ffprobe -i "$SELECTED_INTRO" -show_entries format=duration -v quiet -of csv="p=0")
# Sicherstellen, dass die Dauer gültig ist
if [[ -z "$DURATION_INTRO" || "$DURATION_INTRO" == "N/A" ]]; then
echo "Fehler: Die Dauer des Intros konnte nicht ermittelt werden."
exit 1
fi
# Offset berechnen und negative Werte verhindern
OFFSET=$(echo "scale=2; $DURATION_INTRO - 0.5" | bc)
if (( $(echo "$OFFSET < 0" | bc -l) )); then OFFSET=0; fi
# Prüfen, ob CHUNKS_ARRAY existiert und nicht leer ist
if [[ -z "${CHUNKS_ARRAY[0]}" ]]; then
echo "Fehler: CHUNKS_ARRAY ist leer oder nicht definiert."
exit 1
fi
CROSSFADE_DURATION="0.5"
# Intro mit Crossfade zum ersten Chunk
ffmpeg -i "$SELECTED_INTRO" -ss "$START_OFFSET" -i "${CHUNKS_ARRAY[0]}" \
-filter_complex \
"[1:v:0]fade=t=in:st=0:d=0.2[x];
[1:a:0]afade=t=in:st=0:d=0.2[a];
[0:v:0][0:a:0]
[x][a]
concat=n=2:v=1:a=1
[v0][a0]" \
-map '[v0]' -map '[a0]' \
"[0:v:0]format=pix_fmts=yuv420p,fps=50[va]; \
[1:v:0]format=pix_fmts=yuv420p,fps=50[vb]; \
[va][vb]xfade=transition=fade:duration=${CROSSFADE_DURATION}:offset=${OFFSET}[v]; \
[1:a:0]afade=t=in:st=0:d=${CROSSFADE_DURATION}[a]; \
[0:a:0][a]concat=n=2:v=0:a=1[a0]" \
-map '[v]' -map '[a0]' \
-c:a aac -b:a 192k \
-c:v libx264 -threads 0 -pix_fmt yuv420p -crf 18 -profile:v high -level 4.1 -disposition default \
-c:v libx264 -threads 4 -pix_fmt yuv420p -crf 18 -profile:v high -level 4.1 -disposition default \
-movflags +faststart \
-metadata:s:a:0 language=native \
"${WORKDIR}/introcombined.mkv"
# STEP 3
# outrofile with last chunk and corssface encode
ffmpeg -i "$SELECTED_OUTRO" -t "$END_OFFSET" -i "${CHUNKS_ARRAY[-1]}" \
# Outro mit Crossfade vom letzten Chunk
echo "==== STEP 3 ===="
FOO=$(echo "${END_OFFSET} - ${CROSSFADE_DURATION}" | bc)
ffmpeg -i "$SELECTED_OUTRO" -t "$END_OFFSET" -i "${CHUNKS_ARRAY[$((${#CHUNKS_ARRAY[@]} - 1))]}" \
-filter_complex \
"[1:v:0]fade=t=out:st=$(($END_OFFSET - 1)):d=1.0[x];
[1:a:0]afade=t=out:st=$(($END_OFFSET - 1)):d=1.0[a];
[x][a]
[0:v:0][0:a:0]
concat=n=2:v=1:a=1
[v0][a0]" \
-map '[v0]' -map '[a0]' \
"[1:v:0]format=pix_fmts=yuv420p,fps=50[v1]; \
[0:v:0]format=pix_fmts=yuv420p,fps=50[v0]; \
[v1][v0]xfade=transition=fade:duration=${CROSSFADE_DURATION}:offset=${FOO}[v]; \
[1:a:0]afade=t=out:st=${FOO}:d=${CROSSFADE_DURATION}[a1]; \
[0:a:0]afade=t=in:st=0:d=${CROSSFADE_DURATION}[a0]; \
[a1][a0]acrossfade=d=1[a]" \
-map "[v]" -map "[a]" \
-c:a aac -b:a 192k \
-c:v libx264 -threads 0 -pix_fmt yuv420p -crf 18 -profile:v high -level 4.1 -disposition default \
-metadata:s:a:0 language=native \
"${WORKDIR}/outrocombined.mkv"
# STEP 4
# encoded intro+outro and all chunks in between with c:v copy and audio dynnorm + encode
# Encoded intro+outro und alle Chunks in between mit c:v copy und audio dynnorm + encode
echo "==== STEP 4 ===="
CHUNKLIST="${WORKDIR}/chunklist.txt"