AVFMT_NEEDNUMBER  415 extra_lib/include/ffmpeg_android/libavformat/avformat.h #define AVFMT_NEEDNUMBER    0x0002 /**< Needs '%d' in filename. */
AVFMT_NEEDNUMBER  405 extra_lib/include/libavformat/avformat.h #define AVFMT_NEEDNUMBER    0x0002 /**< Needs '%d' in filename. */