判断文件是否是H264

[{"title":"（ 25 个子文件 7.78MB ） 判断文件是否是H264","children":[{"title":"H264","children":[{"title":"H264.sdf <span style='color:#111;'> 28.50MB </span>","children":null,"spread":false},{"title":"H264","children":[{"title":"H264.vcxproj.filters <span style='color:#111;'> 1.30KB </span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"H264.pch <span style='color:#111;'> 1.63MB </span>","children":null,"spread":false},{"title":"vc120.pdb <span style='color:#111;'> 220.00KB </span>","children":null,"spread":false},{"title":"H264.tlog","children":[{"title":"cl.command.1.tlog <span style='color:#111;'> 1.22KB </span>","children":null,"spread":false},{"title":"CL.read.1.tlog <span style='color:#111;'> 19.65KB </span>","children":null,"spread":false},{"title":"link.read.1.tlog <span style='color:#111;'> 2.42KB </span>","children":null,"spread":false},{"title":"link.write.1.tlog <span style='color:#111;'> 346B </span>","children":null,"spread":false},{"title":"CL.write.1.tlog <span style='color:#111;'> 664B </span>","children":null,"spread":false},{"title":"link.command.1.tlog <span style='color:#111;'> 1.04KB </span>","children":null,"spread":false},{"title":"H264.lastbuildstate <span style='color:#111;'> 149B </span>","children":null,"spread":false}],"spread":true},{"title":"H264.log <span style='color:#111;'> 1.25KB </span>","children":null,"spread":false},{"title":"vc120.idb <span style='color:#111;'> 507.00KB </span>","children":null,"spread":false},{"title":"stdafx.obj <span style='color:#111;'> 10.95KB </span>","children":null,"spread":false},{"title":"H264.obj <span style='color:#111;'> 44.13KB </span>","children":null,"spread":false}],"spread":true},{"title":"H264.cpp <span style='color:#111;'> 5.96KB </span>","children":null,"spread":false},{"title":"stdafx.h <span style='color:#111;'> 356B </span>","children":null,"spread":false},{"title":"ReadMe.txt <span style='color:#111;'> 1.65KB </span>","children":null,"spread":false},{"title":"capture.h264 <span style='color:#111;'> 1.31MB </span>","children":null,"spread":false},{"title":"stdafx.cpp <span style='color:#111;'> 291B </span>","children":null,"spread":false},{"title":"H264.vcxproj <span style='color:#111;'> 4.42KB </span>","children":null,"spread":false},{"title":"targetver.h <span style='color:#111;'> 314B </span>","children":null,"spread":false}],"spread":true},{"title":"ipch","children":[{"title":"h264-b408cb0b","children":[{"title":"h264-2873e190.ipch <span style='color:#111;'> 2.81MB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"H264.v12.suo <span style='color:#111;'> 18.50KB </span>","children":null,"spread":false},{"title":"H264.sln <span style='color:#111;'> 958B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]