Comments (4)
jaysonlong
commented on June 3, 2024
不提供，想转换自己百度 ffmpeg 的用法
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xiebruce
commented on June 3, 2024
好吧，其实我也不是不会，就是觉得能转就不用自己手动去转，不过后来想想，如果要在下载后转换，会导致下载速度很慢(如果把转换也当作下载过程的话)，所以我还是自己下载好批量转换了。
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jaysonlong
commented on June 3, 2024
如果是mp4格式兼容的编码比如f4v的h264+aac，使用-c copy转格式也就几秒钟的事情，否则需要重新编码耗时很长。下载完成合并后自己转换格式和视频合并时就转换的耗时是一样的，都要重新编码（如果不兼容）或都不用重新编码（如果兼容）。我这里不更改容器格式直接合并视频，保证了合并速度和和视频的可用性（指定转码为固定格式可能出错）。
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xiebruce
commented on June 3, 2024
如果是mp4格式兼容的编码比如f4v的h264+aac，使用-c copy转格式也就几秒钟的事情，否则需要重新编码耗时很长。下载完成合并后自己转换格式和视频合并时就转换的耗时是一样的，都要重新编码（如果不兼容）或都不用重新编码（如果兼容）。我这里不更改容器格式直接合并视频，保证了合并速度和和视频的可用性（指定转码为固定格式可能出错）。
嗯，确实
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