const AVCodecContext *dec_ctx = ist->codec; ^ libavformat/utils.c:5814:5: warning: 'codec' is deprecated (declared at libavformat/avformat.h:884) [-Wdeprecated-declarations] AVCodecContext *enc_ctx = ost->codec; ^ libavformat/utils.c: At top level: libavformat/utils.c:5913:12: warning...