EXMEM_BUFFER_SIZE  156 core/memmgmt.c #define EXMEM_BUFFER_SIZE (1024*1024*2) // default size if not specified by camera
EXMEM_BUFFER_SIZE   34 platform/ixus1000_sd4500/platform_camera.h     #define EXMEM_BUFFER_SIZE (1024*1024*2)        // desired amount of exmem memory to allocate