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fix(video): 解决视频时间戳处理和编码参数问题
- 统一归零视频起始时间戳,避免源素材非 0 起始 PTS 造成封装后首帧冻结 - 修改 setpts 滤镜表达式为 setpts=PTS-STARTPTS 格式 - 为所有速度调整场景应用标准化的时间戳处理 - 添加视频编码参数测试文件,确保 B 帧在各种硬件加速下被禁用 - 为软件、QSV 和 CUDA 硬件加速添加 B 帧禁用测试用例
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@@ -725,8 +725,11 @@ class RenderSegmentTsHandler(BaseHandler):
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break
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combined_pts_factor = (1.0 / speed) * ospeed_factor
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# 统一归零视频起始时间戳,避免源素材非 0 起始 PTS 造成封装后首帧冻结
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if combined_pts_factor != 1.0:
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filters.append(f"setpts={combined_pts_factor}*PTS")
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filters.append(f"setpts={combined_pts_factor}*(PTS-STARTPTS)")
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else:
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filters.append("setpts=PTS-STARTPTS")
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# 2. LUT 调色
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if lut_file:
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