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Fix high framerate preview playback

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This commit is contained in:
Cameron
2026-02-26 10:26:52 -05:00
parent 7d164bad81
commit 32ece84209
1 changed files with 5 additions and 1 deletions
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6
src/video/ffmpeg.rs
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@@ -273,7 +273,7 @@ pub async fn generate_preview_clip(input_file: &str, output_file: &str) -> Resul
let interval = duration / segment_count as f64;
let vf = format!(
"select='lt(mod(t,{:.4}),1)',setpts=N/FRAME_RATE/TB,scale=-2:480",
"select='lt(mod(t,{:.4}),1)',setpts=N/30/TB,scale=-2:480",
interval
);
let af = format!(
@@ -285,6 +285,10 @@ pub async fn generate_preview_clip(input_file: &str, output_file: &str) -> Resul
cmd.args(["-af", &af]);
}
// Force 30fps output so high-framerate sources (60fps) don't play back
// at double speed due to select/setpts timestamp mismatches.
cmd.args(["-r", "30"]);
// Use NVENC for encoding when available, otherwise fall back to libx264
if use_nvenc {
cmd.args(["-c:v", "h264_nvenc", "-preset", "p4", "-cq:v", "28"]);