当用pkg-config找avcodec与avutil时，应该就AVCODEC_INCLUDE_DIRS,AVUTIL_INCLUDE_DIRS
当用pkg-config找avcodec与avutil时，应该就AVCODEC_INCLUDE_DIRS,AVUTIL_INCLUDE_DIRS

当用pkg-config找avcodec与avutil时，应该就AVCODEC_INCLUDE_DIRS,AVUTIL_INCLUDE_DIRS而不是AVCODEC_INCLUDE_DIR,AVUTIL_INCLUDE_DIR
xiongziliang/ZLMediaKit,xiongziliang/ZLMediaKit,xiongziliang/ZLMediaKit,xiongziliang/ZLMediaKit