Allocate and read the payload of a packet and initialize its fields with default values.
@param s associated IO context @param pkt packet @param size desired payload size @return >0 (read size) if OK, AVERROR_xxx otherwise
See Implementation
Allocate and read the payload of a packet and initialize its fields with default values.
@param s associated IO context @param pkt packet @param size desired payload size @return >0 (read size) if OK, AVERROR_xxx otherwise