PeerStreamer

/**

 * Iterate through names of available protocols.

 *

 * @param opaque A private pointer representing current protocol.

 *        It must be a pointer to NULL on first iteration and will

 *        be updated by successive calls to avio_enum_protocols.

 * @param output If set to 1, iterate over output protocols,

 *               otherwise over input protocols.

 *

 * @return A static string containing the name of current protocol or NULL

 */

const char *avio_enum_protocols(void **opaque, int output);