ffmpeg数据结构-URLContext

typedef struct URLContext {    const AVClass *av_class;    /**< information for av_log(). Set by url_open(). */    struct URLProtocol *prot;    void *priv_data;    char *filename;             /**< specified URL */    int flags;    int max_packet_size;         /**< if non zero, the stream is packetized with this max packet size */    int is_streamed;            /**< true if streamed (no seek possible), default = false */    int is_connected;    AVIOInterruptCB interrupt_callback;    int64_t rw_timeout;         /**< maximum time to wait for (network) read/write operation completion, in mcs */} URLContext;