fix: amix 加 normalize=0 防止原音频被自动减半音量

2026-05-29 09:56:53 +08:00
parent c5f1098831
commit 58c1bbc199
1 changed files with 1 additions and 1 deletions
@@ -574,7 +574,7 @@ pub async fn mix_bgm_to_video(
    // [1:a]volume=0.25,aloop=loop=-1:size=2e+09[bgm]; — BGM 调整音量后无限循环
    // [a0][bgm]amix=inputs=2:duration=first:dropout_transition=2[aout] — 混合，以第一个输入时长为准
    let filter_complex = format!(
-        "[0:a]volume={:.2}[a0];[1:a]volume={:.2},aloop=loop=-1:size=2e+09[bgm];[a0][bgm]amix=inputs=2:duration=first:dropout_transition=2[aout]",
+        "[0:a]volume={:.2}[a0];[1:a]volume={:.2},aloop=loop=-1:size=2e+09[bgm];[a0][bgm]amix=inputs=2:duration=first:dropout_transition=2:normalize=0[aout]",
        video_volume, bgm_volume
    );