利用ffmpeg使用v4l2读取视频，并用h264

[{"title":"（ 25 个子文件 2.58MB ） 利用ffmpeg使用v4l2读取视频，并用h264","children":[{"title":"VideoRecorderH264","children":[{"title":"VideoRecorderH264.pro <span style='color:#111;'> 843B </span>","children":null,"spread":false},{"title":"moc_h264Encoder.cpp <span style='color:#111;'> 2.03KB </span>","children":null,"spread":false},{"title":"mainwindow.ui <span style='color:#111;'> 654B </span>","children":null,"spread":false},{"title":"moc_mainwindow.cpp <span style='color:#111;'> 2.02KB </span>","children":null,"spread":false},{"title":"moc_h264Encoder.o <span style='color:#111;'> 2.89KB </span>","children":null,"spread":false},{"title":"main.o <span style='color:#111;'> 1.66KB </span>","children":null,"spread":false},{"title":"out.h264 <span style='color:#111;'> 1.70MB </span>","children":null,"spread":false},{"title":"mainwindow.cpp <span style='color:#111;'> 964B </span>","children":null,"spread":false},{"title":"mainwindow.o <span style='color:#111;'> 7.68KB </span>","children":null,"spread":false},{"title":"VideoRecorderH264.pro.user <span style='color:#111;'> 17.25KB </span>","children":null,"spread":false},{"title":"moc_getVideoThread.o <span style='color:#111;'> 2.93KB </span>","children":null,"spread":false},{"title":"video","children":[{"title":"getVideoThread.cpp <span style='color:#111;'> 6.93KB </span>","children":null,"spread":false},{"title":"getVideoThread.h <span style='color:#111;'> 1.14KB </span>","children":null,"spread":false},{"title":"h264Encoder.cpp <span style='color:#111;'> 5.77KB </span>","children":null,"spread":false},{"title":"h264Encoder.h <span style='color:#111;'> 1.43KB </span>","children":null,"spread":false}],"spread":true},{"title":"zgy.h264 <span style='color:#111;'> 856.00KB </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 187B </span>","children":null,"spread":false},{"title":"Makefile <span style='color:#111;'> 9.11KB </span>","children":null,"spread":false},{"title":"VideoRecorderH264 <span style='color:#111;'> 48.15KB </span>","children":null,"spread":false},{"title":"moc_mainwindow.o <span style='color:#111;'> 5.97KB </span>","children":null,"spread":false},{"title":"h264Encoder.o <span style='color:#111;'> 10.17KB </span>","children":null,"spread":false},{"title":"mainwindow.h <span style='color:#111;'> 507B </span>","children":null,"spread":false},{"title":"ui_mainwindow.h <span style='color:#111;'> 2.11KB </span>","children":null,"spread":false},{"title":"moc_getVideoThread.cpp <span style='color:#111;'> 2.07KB </span>","children":null,"spread":false},{"title":"getVideoThread.o <span style='color:#111;'> 14.35KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}]