Struct SampleTable 

pub struct SampleTable {
    pub time_to_sample: Vec<TimeToSampleEntry>,
    pub sample_to_chunk: Vec<SampleToChunkEntry>,
    pub sample_sizes: SampleSizeMode,
    pub chunk_offsets: Vec<u64>,
    pub sync_samples: Option<BTreeSet<u32>>,
    pub timescale: u32,
}

Complete sample table for one track.

Fields

time_to_sample: Vec<TimeToSampleEntry>

Time-to-sample entries from stts.

sample_to_chunk: Vec<SampleToChunkEntry>

Sample-to-chunk entries from stsc.

sample_sizes: SampleSizeMode

Per-sample sizes from stsz.

chunk_offsets: Vec<u64>

Chunk offsets from stco / co64.

sync_samples: Option<BTreeSet<u32>>

Set of sync (key-frame) sample numbers (1-based) from stss. If None, every sample is a sync sample.

timescale: u32

Track timescale (ticks per second).

Implementations

impl SampleTable

pub fn new(timescale: u32) -> Self

Creates an empty sample table with the given timescale.

pub fn sample_count_from_stts(&self) -> u64

Returns the total number of samples described by the stts entries.

pub fn sample_count(&self) -> u64

Returns the total number of samples from the size table.

pub fn total_duration_ticks(&self) -> u64

Returns the total media duration in timescale units.

pub fn duration_seconds(&self) -> f64

Returns the total media duration in seconds.

pub fn sample_size(&self, sample_number: u32) -> Option<u32>

Returns the size of the given sample (1-based index).

pub fn is_sync_sample(&self, sample_number: u32) -> bool

Returns true if the given sample (1-based) is a sync sample.

pub fn nearest_sync_before(&self, sample_number: u32) -> Option<u32>

Finds the nearest sync sample at or before sample_number (1-based).

pub fn nearest_sync_after(&self, sample_number: u32) -> Option<u32>

Finds the nearest sync sample at or after sample_number (1-based).

pub fn sample_at_time(&self, ticks: u64) -> Option<u32>

Converts a decode timestamp (in timescale ticks) to a sample number (1-based). Returns None if the timestamp exceeds the track duration.

pub fn sample_time(&self, sample_number: u32) -> Option<u64>

Returns the decode timestamp (in ticks) of a given sample (1-based).

pub fn total_data_size(&self) -> u64

Total data size of all samples.

pub fn average_sample_size(&self) -> f64

Returns the average sample size in bytes.

pub fn chunk_count(&self) -> usize

Number of chunk offsets.

Trait Implementations

impl Clone for SampleTable

fn clone(&self) -> SampleTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SampleTable

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

Formats the value using the given formatter.