Function readU32BE

src/fl/codec/mp4_parser.cpp.hpp:9–15

Read a big-endian uint32 from a byte span at offset. Returns 0 and sets ok=false if out of bounds.

// Read a big-endian uint32 from a byte span at offset.
// Returns 0 and sets ok=false if out of bounds.
inline fl::u32 readU32BE(fl::span<const fl::u8> data, fl::size offset, bool& ok) {
    if (offset + 4 > data.size()) { ok = false; return 0; }
    return (fl::u32(data[offset]) << 24) |
           (fl::u32(data[offset + 1]) << 16) |
           (fl::u32(data[offset + 2]) << 8) |
            fl::u32(data[offset + 3]);
}

inline fl::u16 readU16BE(fl::span<const fl::u8> data, fl::size offset, bool& ok) {
    if (offset + 2 > data.size()) { ok = false; return 0; }