Lines Matching refs:prefix
66 static av_always_inline uint64_t ff_dnxhd_check_header_prefix_hr(uint64_t prefix)
68 uint64_t data_offset = prefix >> 16;
69 if ((prefix & 0xFFFF0000FFFFLL) == 0x0300 &&
72 return prefix;
76 static av_always_inline uint64_t ff_dnxhd_check_header_prefix(uint64_t prefix)
78 if (prefix == DNXHD_HEADER_INITIAL ||
79 prefix == DNXHD_HEADER_444 ||
80 ff_dnxhd_check_header_prefix_hr(prefix))
81 return prefix;
87 uint64_t prefix = AV_RB32(buf);
88 prefix = (prefix << 16) | buf[4] << 8;
89 return ff_dnxhd_check_header_prefix(prefix);