Struct EntryBasedOffsetProcessor

pub struct EntryBasedOffsetProcessor { /* private fields */ }

Entry-based offset processor for manufacturers like Panasonic ExifTool: PanasonicRaw.pm uses IFD entry values as offsets to actual data This is different from fixed-offset processors used by simpler formats

Implementations

impl EntryBasedOffsetProcessor

pub fn new(offset_rules: HashMap<u16, OffsetExtractionRule>) -> Self

Create new entry-based offset processor ExifTool: Initialize with manufacturer-specific rules

pub fn get_rule(&self, tag_id: u16) -> Option<&OffsetExtractionRule>

Get offset extraction rule for a tag ExifTool: Look up how to process this tag’s offset

pub fn calculate_offset( &self, entry: &IfdEntry, rule: &OffsetExtractionRule, context: &OffsetContext, ) -> Result<u64>

Calculate actual offset from IFD entry and rule ExifTool: Apply manufacturer-specific offset calculation

pub fn add_rule(&mut self, rule: OffsetExtractionRule)

Add new offset extraction rule ExifTool: Extend processor with additional rules

pub fn remove_rule(&mut self, tag_id: u16) -> Option<OffsetExtractionRule>

Remove offset extraction rule ExifTool: Remove rule for specific tag

pub fn get_configured_tags(&self) -> Vec<u16>

Get all configured tag IDs ExifTool: List all tags that have offset rules