DJI的H.264码流的SEI的解析

十六进制解码只能得到无人机id，其他部分为乱码，已删除sei头信息

sei byte：
5204080310019A034621FE1685C8B2BD4A3D29712EF0C67891B03D3085B3FCFFFFFFFFFFFF013801521308E60F100B18192009280F303138C0A3F5D0035A100A0E315A4E424A3554303043303043319A034621FE1685C8B2BD4A3D29712EF0C67891B03D3085B3FCFFFFFFFFFFFF013801521308E60F100B18192009280F303138C0A3F5D0035A100A0E315A4E424A3554303043303043319A034621FE1685C8B2BD4A3D29712EF0C67891B03D3085B3FCFFFFFFFFFFFF013801521308E60F100B18192009280F303138C0A3F5D0035A100A0E315A4E424A355430304330304331

解码结果：
R�F!��Ȳ�J=)q.��x��=0���������8R� (018����Z
1ZNBJ5T00C00C1�F!��Ȳ�J=)q.��x��=0���������8R� (018����Z
1ZNBJ5T00C00C1�F!��Ȳ�J=)q.��x��=0���������8R� (018����Z
1ZNBJ5T00C00C1