From 31764bae5455bcdfa359262507fed211d4de5e0b Mon Sep 17 00:00:00 2001
From: Mark Janssen <mark@sig-io.nl>
Date: Tue, 30 Dec 2025 19:05:28 +0100
Subject: [PATCH] Generate 50fps (output) video, with base-profile and
 dual-mono

---
 generate.sh | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/generate.sh b/generate.sh
index 2e831fb..b8e49b8 100755
--- a/generate.sh
+++ b/generate.sh
@@ -93,20 +93,20 @@ generate_frames() {
 render_video() {
     echo "Rendering to video"
     ffmpeg \
-  -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 \
-  -framerate 25 -i frame-%d.webp \
+  -framerate 50 -i frame-%d.webp \
   -i ${SOURCEDIR}/input/bumper.m4a \
-  -filter_complex "[2:a][0:a]concat=n=2:v=0:a=1[a]" \
-  -map 1:v:0 -map "[a]" \
+  -map 0:v:0 -map 1:a:0 \
   -c:v libx264 \
-  -c:a aac \
-  -profile:v baseline \
+  -profile:v main \
   -pix_fmt yuv420p \
-  -colorspace:v bt709 \
-  -color_primaries:v bt709 \
-  -color_trc:v bt709 \
-  -color_range:v tv \
-  -shortest \
+  -colorspace bt709 \
+  -color_primaries bt709 \
+  -color_trc bt709 \
+  -color_range tv \
+  -r 50 \
+  -c:a aac \
+  -ac 2 \
+  -af "pan=stereo|c0=c0|c1=c0,apad" \
   "${VIDEODIR}/${PROJECT}-x264.mkv"
 
 }