TIFFReadEncodedStrip¶
Synopsis¶
#include <tiffio.h>
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tmsize_t TIFFReadEncodedStrip(TIFF *tif, uint32_t strip, void *buf, tmsize_t size)¶
Description¶
Read the specified strip of data and place up to size bytes of decompressed information in the (user supplied) data buffer.
Notes¶
The value of strip is a "raw strip number". That is, the caller must take
into account whether or not the data are organized in separate planes
(PlanarConfiguration = 2).
To read a full strip of data the data buffer should typically be at least as
large as the number returned by TIFFStripSize().
If -1 is passed in the size parameter, the whole strip will be read. You
should be sure you have enough space allocated for the buffer.
The library attempts to hide bit- and byte-ordering differences between the
image and the native machine by converting data to the native machine order.
Bit reversal is done if the FillOrder tag is opposite to the native
machine bit order. 16- and 32-bit samples are automatically byte-swapped if
the file was written with a byte order opposite to the native machine byte
order.
Return values¶
The actual number of bytes of data that were placed in buf is returned;
TIFFReadEncodedStrip() returns -1 if an error was encountered.
Diagnostics¶
All error messages are directed to the TIFFErrorExtR() routine.
See also¶
TIFFOpen (3tiff), TIFFReadRawStrip (3tiff), TIFFReadScanline (3tiff), TIFFReadEncodedTile (3tiff), libtiff (3tiff)