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https://github.com/Serial-ATA/lofty-rs
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EBML: Retain all audio tracks
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9233d4a063
commit
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1 changed files with 35 additions and 9 deletions
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@ -66,7 +66,7 @@ impl EbmlExtension {
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}
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}
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#[derive(Debug, Clone, PartialEq, Default)]
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#[derive(Debug, Clone, PartialEq)]
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pub struct SegmentInfo {
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pub(crate) timestamp_scale: u64,
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pub(crate) muxing_app: String,
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@ -96,6 +96,17 @@ impl SegmentInfo {
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}
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}
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impl Default for SegmentInfo {
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fn default() -> Self {
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Self {
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// https://matroska.org/technical/elements.html
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timestamp_scale: 1_000_000,
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muxing_app: String::new(),
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writing_app: String::new(),
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}
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}
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}
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#[derive(Debug, Clone, PartialEq, Default)]
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pub struct AudioTrackDescriptor {
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pub(crate) number: u64,
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@ -211,7 +222,7 @@ pub struct EbmlProperties {
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pub(crate) header: EbmlHeaderProperties,
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pub(crate) extensions: Vec<EbmlExtension>,
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pub(crate) segment_info: SegmentInfo,
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pub(crate) default_audio_track: AudioTrackDescriptor,
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pub(crate) audio_tracks: Vec<AudioTrackDescriptor>,
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}
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impl EbmlProperties {
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@ -228,29 +239,44 @@ impl EbmlProperties {
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&self.extensions
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}
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/// Information from the Matroska `\EBML\Segment\Info` element
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/// Information from the `\EBML\Segment\Info` element
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pub fn segment_info(&self) -> &SegmentInfo {
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&self.segment_info
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}
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/// All audio tracks in the file
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///
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/// This includes all audio tracks in the Matroska `\EBML\Segment\Tracks` element.
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///
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/// NOTE: The first audio track is **always** the default audio track.
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pub fn audio_tracks(&self) -> &[AudioTrackDescriptor] {
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&self.audio_tracks
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}
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/// Information about the default audio track
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///
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/// The information is extracted from the first audio track with its default flag set
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/// in the Matroska `\EBML\Segment\Tracks` element.
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pub fn default_audio_track(&self) -> &AudioTrackDescriptor {
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&self.default_audio_track
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/// in the `\EBML\Segment\Tracks` element.
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///
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/// NOTE: This will always return `Some` unless [`ParseOptions::read_properties`](crate::config::ParseOptions::read_properties) is set to `false`.
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pub fn default_audio_track(&self) -> Option<&AudioTrackDescriptor> {
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self.audio_tracks.first()
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}
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}
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impl From<EbmlProperties> for FileProperties {
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fn from(input: EbmlProperties) -> Self {
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let Some(default_audio_track) = input.default_audio_track() else {
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return FileProperties::default();
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};
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Self {
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duration: todo!("Support duration"),
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overall_bitrate: todo!("Support bitrate"),
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audio_bitrate: todo!("Support bitrate"),
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sample_rate: Some(input.default_audio_track.settings.sampling_frequency),
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bit_depth: input.default_audio_track.settings.bit_depth,
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channels: Some(input.default_audio_track.settings.channels),
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sample_rate: Some(default_audio_track.settings.sampling_frequency),
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bit_depth: default_audio_track.settings.bit_depth,
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channels: Some(default_audio_track.settings.channels),
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channel_mask: todo!("Channel mask"),
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}
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}
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