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请问我读一个视频文件两次，双通道，解码之后用成两路，一路拼接显示正常，一路再编码之后保存，为什么保存的h264文件什么都没有，是0字节呢
你好， 请问你解码后，一个视频去显示，一个视频重新编码？你这个是什么应用啊？ 编码是否有报错？
