Module raw 

Turning RAW files into JPEGs that any SmugMug account can take.

RAW uploads need a SmugMug Source subscription. Without one, the uploader sends a JPEG instead: the full-size preview the camera embedded in the RAW file, with the RAW’s EXIF (capture date, camera, exposure, GPS, orientation) copied in when the preview has none of its own. That is the camera’s own rendering (picture style, white balance), without any edits made in a RAW editor, and is byte-for-byte the same each run.

When a file has no usable preview (DNGs from Adobe DNG Converter often carry only a 1024 px one), the RAW data itself is converted with rawler (LGPL-2.1): demosaiced, white balanced and converted to sRGB, with no tone curve, so it looks flatter than the camera’s rendering.

Modules

exif

Reading a RAW file’s EXIF so it can be written into the JPEG rendered from it, which usually has none of its own. Writing is little_exif’s job; reading is done here because RAW containers (CR3’s boxes, the Olympus and Panasonic TIFF variants) are outside what it parses.

jpeg

Finding the JPEG previews cameras embed in RAW files.

Structs

RenderedJpeg

A RAW file rendered to JPEG, ready to upload.

Constants

MIN_PREVIEW_LONG_EDGE

Previews with a shorter long edge than this are thumbnails, not photos, and aren’t uploaded in place of the RAW.

Functions

render_jpeg

Render the RAW file at path to a JPEG (see the module docs).

render_jpeg_bytes

rendered_file_name

The file name a RAW file’s rendered JPEG is uploaded under: IMG_1234.CR2 becomes IMG_1234.jpg.