#include #include int main(int argc, char * argv[]) { if (argc < 2) { fprintf(stderr, "Usage: %s \n", argv[0]); return 1; } AVFormatContext * context = NULL; av_register_all(); if (avformat_open_input(&context, argv[1], NULL, NULL) != 0) { fprintf(stderr, "Error opening input stream %s\n", argv[1]); return 2; } avformat_close_input(&context); return 0; }