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fix: update FFmpeg quality settings for palette generation and GIF creation

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wood chen 2025-05-22 10:12:32 +08:00
parent 06ba7c7cea
commit 6d8fb24807
1 changed files with 13 additions and 7 deletions
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20
gui.py
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@ -221,14 +221,14 @@ class VideoToGifConverter:
self.files_list.insert(tk.END, file)
def get_quality_settings(self):
"""根据质量设置返回 FFmpeg 参数"""
"""根据质量设置返回 FFmpeg 调色板生成参数"""
quality = self.quality_var.get()
if quality == "high":
return ["-quality", "100"]
return "stats_mode=full"
elif quality == "medium":
return ["-quality", "75"]
return "stats_mode=diff"
else:
return ["-quality", "50"]
return "stats_mode=diff:dither=bayer:bayer_scale=2"
def validate_inputs(self):
"""验证输入参数"""
@ -329,8 +329,13 @@ class VideoToGifConverter:
if duration:
palette_cmd.extend(["-t", str(float(duration))])
# 添加滤镜和输出
palette_cmd.extend(["-vf", f"{filter_complex},palettegen", palette_path])
# 获取质量设置
quality_setting = self.get_quality_settings()
# 修改调色板生成命令中的滤镜
palette_cmd.extend(
["-vf", f"{filter_complex},palettegen={quality_setting}", palette_path]
)
# 打印命令用于调试
print("调色板生成命令:", " ".join(palette_cmd))
@ -376,12 +381,13 @@ class VideoToGifConverter:
if duration:
gif_cmd.extend(["-t", str(float(duration))])
# 修改 GIF 生成命令中的滤镜
gif_cmd.extend(
[
"-i",
palette_path,
"-lavfi",
f"{filter_complex} [x]; [x][1:v] paletteuse",
f"{filter_complex} [x]; [x][1:v] paletteuse=dither=bayer:bayer_scale=2",
output_path,
]
)