Struct TrackInfo 

pub struct TrackInfo {
    pub track_number: u32,
    pub handler_type: [u8; 4],
    pub has_jpeg_box: bool,
    pub meta_format: Option<String>,
    pub meta_type: Option<String>,
    pub media_timescale: u32,
    pub stco: Vec<u64>,
    pub stsc: Vec<(u32, u32, u32)>,
    pub stsz: Vec<u32>,
    pub stts: Vec<(u32, u32)>,
}

Information about one timed-metadata track.

Fields

track_number: u32

1-based index of the trak atom in the file. ExifTool sets SET_GROUP1 to Track<n> while walking a track’s samples, so every tag those samples produce reports that family-1 group whatever table it came from.

handler_type: [u8; 4]

Handler type (e.g. b“vide“, b“soun“, b“meta“, b“text“, etc.)

has_jpeg_box: bool

Whether the sample description holds a nested JPEG box, the marker ExifTool uses to decide a video track carries a JpgFromRaw preview.

meta_format: Option<String>

MetaFormat / OtherFormat from stsd (e.g. “gpmd”, “camm”, “mebx”, “tx3g”, etc.)

meta_type: Option<String>

The application/... string a mett sample description carries (QuickTime.pm:7769-7774). It says which table the samples hold.

media_timescale: u32

Media timescale from mdhd

stco: Vec<u64>

Chunk offsets from stco/co64

stsc: Vec<(u32, u32, u32)>

Sample-to-chunk entries: (first_chunk, samples_per_chunk, desc_index)

stsz: Vec<u32>

Sample sizes from stsz

stts: Vec<(u32, u32)>

Time-to-sample entries: pairs of (count, delta)

Trait Implementations

impl Clone for TrackInfo

fn clone(&self) -> TrackInfo

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TrackInfo

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TrackInfo

fn default() -> TrackInfo

Returns the “default value” for a type.