TIFFSIZE(3tiff)

💖 TIFFSIZE — bestie, it's the size-checking page (3tiff) 💖

okay so this is TIFFSIZE(3tiff) from LibTIFF and it's literally just here to tell you how big stuff is. no drama, just measurements. we love a low-stakes queen. ✨

---

🌸 SYNOPSIS 🌸

#include <tiffio.h>

tmsize_t TIFFRasterScanlineSize(TIFF *tif)

uint64_t TIFFRasterScanlineSize64(TIFF *tif)

tmsize_t TIFFScanlineSize(TIFF *tif)

uint64_t TIFFScanlineSize64(TIFF *tif)

four functions, one job. it's giving ✨specialist✨.

---

🦋 DESCRIPTION 🦋

💅 the scanline girlies

TIFFScanlineSize() hands you the size in bytes of a row of data — like, exactly how it would come back at you from a call to TIFFReadScanline(), or how it would be expected if you called TIFFWriteScanline(). same number, both directions. iconic. 🫶

bestie, heads up: this number may be 1/samples-per-pixel if the data is stored as separate planes. don't come for me, that's just what it does. 😭

and when YCbCrSubsampling is in the picture, the ScanlineSize is defined as the strip size divided by the strip height — aka the size of a pack of vertical subsampling lines divided by vertical subsampling. so it should still make sense when you multiply it by a multiple of vertical subsampling. math girlies stay winning. 🧚

TIFFScanlineSize64() is the same vibe but it returns the size as a uint64_t. big number energy. 👑

💜 the raster scanline girlies

TIFFRasterScanlineSize() gives you the size in bytes of a complete decoded and packed raster scanline. fully assembled. no crumbs. 🌈

ngl, this value may be different from what TIFFScanlineSize() gave you if the data is stored as separate planes. not a bug, just the truth. 💀

TIFFRasterScanlineSize64() returns that size as a uint64_t. slay. ⭐

---

🙈 DIAGNOSTICS 🙈

None.

literally nothing. no errors, no warnings, no notes. she's unproblematic fr fr. 💖

---

🔥 SEE ALSO 🔥

• TIFFOpen (3tiff)
• TIFFReadScanline (3tiff)
• libtiff (3tiff)

go read those next, bestie, iykyk. 🎀

---

👑 AUTHOR 👑

LibTIFF contributors

---

🍓 COPYRIGHT 🍓

1988-2025, LibTIFF contributors

---

and that's the whole page, periodt. this was LibTIFF 4.7, dated Jun 27, 2026 — ty for coming to my ted talk, mwah 💅✨