mirror of
https://github.com/sile/hls_m3u8.git
synced 2024-05-03 09:09:06 +00:00
831 lines
30 KiB
Rust
831 lines
30 KiB
Rust
use std::borrow::Cow;
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use std::collections::HashSet;
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use std::convert::TryFrom;
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use std::fmt;
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use derive_builder::Builder;
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use crate::line::{Line, Lines, Tag};
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use crate::tags::{
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ExtM3u, ExtXIndependentSegments, ExtXMedia, ExtXSessionData, ExtXSessionKey, ExtXStart,
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ExtXVersion, VariantStream,
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};
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use crate::types::{ClosedCaptions, MediaType, ProtocolVersion};
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use crate::utils::{tag, BoolExt};
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use crate::{Error, RequiredVersion};
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/// The master playlist describes all of the available variants for your
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/// content.
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///
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/// Each variant is a version of the stream at a particular bitrate and is
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/// contained in a separate playlist called [`MediaPlaylist`].
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///
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/// # Examples
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///
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/// A [`MasterPlaylist`] can be parsed from a `str`:
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///
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/// ```
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/// use core::convert::TryFrom;
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/// use hls_m3u8::MasterPlaylist;
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///
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/// // the concat! macro joins multiple `&'static str`.
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/// let master_playlist = MasterPlaylist::try_from(concat!(
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/// "#EXTM3U\n",
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/// "#EXT-X-STREAM-INF:",
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/// "BANDWIDTH=150000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
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/// "http://example.com/low/index.m3u8\n",
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/// "#EXT-X-STREAM-INF:",
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/// "BANDWIDTH=240000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
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/// "http://example.com/lo_mid/index.m3u8\n",
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/// "#EXT-X-STREAM-INF:",
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/// "BANDWIDTH=440000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
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/// "http://example.com/hi_mid/index.m3u8\n",
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/// "#EXT-X-STREAM-INF:",
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/// "BANDWIDTH=640000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=640x360\n",
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/// "http://example.com/high/index.m3u8\n",
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/// "#EXT-X-STREAM-INF:BANDWIDTH=64000,CODECS=\"mp4a.40.5\"\n",
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/// "http://example.com/audio/index.m3u8\n"
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/// ))?;
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///
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/// println!("{}", master_playlist.has_independent_segments);
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/// # Ok::<(), hls_m3u8::Error>(())
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/// ```
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///
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/// or it can be constructed through a builder
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///
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/// ```
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/// # use hls_m3u8::MasterPlaylist;
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/// use hls_m3u8::tags::{ExtXStart, VariantStream};
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/// use hls_m3u8::types::{Float, StreamData};
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///
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/// MasterPlaylist::builder()
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/// .variant_streams(vec![
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/// VariantStream::ExtXStreamInf {
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/// uri: "http://example.com/low/index.m3u8".into(),
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/// frame_rate: None,
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/// audio: None,
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/// subtitles: None,
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/// closed_captions: None,
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/// stream_data: StreamData::builder()
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/// .bandwidth(150000)
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/// .codecs(&["avc1.42e00a", "mp4a.40.2"])
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/// .resolution((416, 234))
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/// .build()
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/// .unwrap(),
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/// },
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/// VariantStream::ExtXStreamInf {
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/// uri: "http://example.com/lo_mid/index.m3u8".into(),
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/// frame_rate: None,
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/// audio: None,
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/// subtitles: None,
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/// closed_captions: None,
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/// stream_data: StreamData::builder()
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/// .bandwidth(240000)
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/// .codecs(&["avc1.42e00a", "mp4a.40.2"])
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/// .resolution((416, 234))
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/// .build()
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/// .unwrap(),
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/// },
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/// ])
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/// .has_independent_segments(true)
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/// .start(ExtXStart::new(Float::new(1.23)))
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/// .build()?;
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/// # Ok::<(), Box<dyn ::std::error::Error>>(())
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/// ```
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///
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/// [`MediaPlaylist`]: crate::MediaPlaylist
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#[derive(Builder, Default, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
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#[builder(build_fn(validate = "Self::validate"))]
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#[builder(setter(into, strip_option))]
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#[non_exhaustive]
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pub struct MasterPlaylist<'a> {
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/// Indicates that all media samples in a [`MediaSegment`] can be
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/// decoded without information from other segments.
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///
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/// ### Note
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///
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/// This field is optional and by default `false`. If the field is `true`,
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/// it applies to every [`MediaSegment`] in every [`MediaPlaylist`] of this
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/// [`MasterPlaylist`].
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///
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/// [`MediaSegment`]: crate::MediaSegment
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/// [`MediaPlaylist`]: crate::MediaPlaylist
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#[builder(default)]
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pub has_independent_segments: bool,
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/// A preferred point at which to start playing a playlist.
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///
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/// ### Note
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///
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/// This field is optional and by default the playlist should be played from
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/// the start.
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#[builder(default)]
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pub start: Option<ExtXStart>,
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/// A list of all [`ExtXMedia`] tags, which describe an alternative
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/// rendition.
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///
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/// For example, three [`ExtXMedia`] tags can be used to identify audio-only
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/// [`MediaPlaylist`]s, that contain English, French, and Spanish
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/// renditions of the same presentation. Or, two [`ExtXMedia`] tags can
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/// be used to identify video-only [`MediaPlaylist`]s that show two
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/// different camera angles.
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///
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/// ### Note
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///
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/// This field is optional.
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///
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/// [`MediaPlaylist`]: crate::MediaPlaylist
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#[builder(default)]
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pub media: Vec<ExtXMedia<'a>>,
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/// A list of all streams of this [`MasterPlaylist`].
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///
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/// ### Note
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///
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/// This field is optional.
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#[builder(default)]
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pub variant_streams: Vec<VariantStream<'a>>,
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/// The [`ExtXSessionData`] tag allows arbitrary session data to be
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/// carried in a [`MasterPlaylist`].
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///
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/// ### Note
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///
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/// This field is optional.
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#[builder(default)]
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pub session_data: Vec<ExtXSessionData<'a>>,
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/// A list of [`ExtXSessionKey`]s, that allows the client to preload
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/// these keys without having to read the [`MediaPlaylist`]s first.
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///
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/// ### Note
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///
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/// This field is optional.
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///
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/// [`MediaPlaylist`]: crate::MediaPlaylist
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#[builder(default)]
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pub session_keys: Vec<ExtXSessionKey<'a>>,
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/// A list of all tags that could not be identified while parsing the input.
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///
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/// ### Note
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///
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/// This field is optional.
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#[builder(default)]
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pub unknown_tags: Vec<Cow<'a, str>>,
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}
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impl<'a> MasterPlaylist<'a> {
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/// Returns a builder for a [`MasterPlaylist`].
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///
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/// # Example
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///
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/// ```
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/// # use hls_m3u8::MasterPlaylist;
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/// use hls_m3u8::tags::{ExtXStart, VariantStream};
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/// use hls_m3u8::types::{Float, StreamData};
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///
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/// MasterPlaylist::builder()
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/// .variant_streams(vec![
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/// VariantStream::ExtXStreamInf {
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/// uri: "http://example.com/low/index.m3u8".into(),
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/// frame_rate: None,
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/// audio: None,
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/// subtitles: None,
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/// closed_captions: None,
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/// stream_data: StreamData::builder()
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/// .bandwidth(150000)
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/// .codecs(&["avc1.42e00a", "mp4a.40.2"])
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/// .resolution((416, 234))
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/// .build()
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/// .unwrap(),
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/// },
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/// VariantStream::ExtXStreamInf {
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/// uri: "http://example.com/lo_mid/index.m3u8".into(),
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/// frame_rate: None,
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/// audio: None,
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/// subtitles: None,
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/// closed_captions: None,
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/// stream_data: StreamData::builder()
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/// .bandwidth(240000)
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/// .codecs(&["avc1.42e00a", "mp4a.40.2"])
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/// .resolution((416, 234))
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/// .build()
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/// .unwrap(),
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/// },
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/// ])
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/// .has_independent_segments(true)
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/// .start(ExtXStart::new(Float::new(1.23)))
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/// .build()?;
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/// # Ok::<(), Box<dyn ::std::error::Error>>(())
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/// ```
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#[must_use]
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#[inline]
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pub fn builder() -> MasterPlaylistBuilder<'a> { MasterPlaylistBuilder::default() }
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/// Returns all streams, which have an audio group id.
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pub fn audio_streams(&self) -> impl Iterator<Item = &VariantStream<'a>> {
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self.variant_streams.iter().filter(|stream| {
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if let VariantStream::ExtXStreamInf { audio: Some(_), .. } = stream {
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true
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} else {
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false
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}
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})
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}
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/// Returns all streams, which have a video group id.
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pub fn video_streams(&self) -> impl Iterator<Item = &VariantStream<'a>> {
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self.variant_streams.iter().filter(|stream| {
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if let VariantStream::ExtXStreamInf { stream_data, .. } = stream {
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stream_data.video().is_some()
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} else if let VariantStream::ExtXIFrame { stream_data, .. } = stream {
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stream_data.video().is_some()
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} else {
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false
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}
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})
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}
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/// Returns all streams, which have no group id.
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pub fn unassociated_streams(&self) -> impl Iterator<Item = &VariantStream<'a>> {
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self.variant_streams.iter().filter(|stream| {
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if let VariantStream::ExtXStreamInf {
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stream_data,
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audio: None,
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subtitles: None,
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closed_captions: None,
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..
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} = stream
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{
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stream_data.video().is_none()
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} else if let VariantStream::ExtXIFrame { stream_data, .. } = stream {
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stream_data.video().is_none()
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} else {
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false
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}
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})
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}
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/// Returns all `ExtXMedia` tags, associated with the provided stream.
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pub fn associated_with<'b>(
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&'b self,
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stream: &'b VariantStream<'_>,
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) -> impl Iterator<Item = &ExtXMedia<'a>> + 'b {
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self.media
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.iter()
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.filter(move |media| stream.is_associated(media))
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}
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/// Makes the struct independent of its lifetime, by taking ownership of all
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/// internal [`Cow`]s.
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///
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/// # Note
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///
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/// This is a relatively expensive operation.
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#[must_use]
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pub fn into_owned(self) -> MasterPlaylist<'static> {
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MasterPlaylist {
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has_independent_segments: self.has_independent_segments,
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start: self.start,
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media: self.media.into_iter().map(|v| v.into_owned()).collect(),
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variant_streams: self
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.variant_streams
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.into_iter()
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.map(|v| v.into_owned())
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.collect(),
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session_data: self
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.session_data
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.into_iter()
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.map(|v| v.into_owned())
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.collect(),
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session_keys: self
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.session_keys
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.into_iter()
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.map(|v| v.into_owned())
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.collect(),
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unknown_tags: self
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.unknown_tags
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.into_iter()
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.map(|v| Cow::Owned(v.into_owned()))
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.collect(),
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}
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}
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}
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impl<'a> RequiredVersion for MasterPlaylist<'a> {
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fn required_version(&self) -> ProtocolVersion {
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required_version![
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self.has_independent_segments
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.athen_some(ExtXIndependentSegments),
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self.start,
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self.media,
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self.variant_streams,
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self.session_data,
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self.session_keys
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]
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}
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}
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impl<'a> MasterPlaylistBuilder<'a> {
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fn validate(&self) -> Result<(), String> {
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if let Some(variant_streams) = &self.variant_streams {
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self.validate_variants(variant_streams)
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.map_err(|e| e.to_string())?;
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}
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self.validate_session_data_tags()
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.map_err(|e| e.to_string())?;
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Ok(())
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}
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fn validate_variants(&self, variant_streams: &[VariantStream<'_>]) -> crate::Result<()> {
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let mut closed_captions_none = false;
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for variant in variant_streams {
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match &variant {
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VariantStream::ExtXStreamInf {
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audio,
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subtitles,
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closed_captions,
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stream_data,
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..
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} => {
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if let Some(group_id) = &audio {
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if !self.check_media_group(MediaType::Audio, group_id) {
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return Err(Error::unmatched_group(group_id));
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}
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}
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if let Some(group_id) = &stream_data.video() {
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if !self.check_media_group(MediaType::Video, group_id) {
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return Err(Error::unmatched_group(group_id));
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}
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}
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if let Some(group_id) = &subtitles {
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if !self.check_media_group(MediaType::Subtitles, group_id) {
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return Err(Error::unmatched_group(group_id));
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}
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}
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if let Some(closed_captions) = &closed_captions {
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match &closed_captions {
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ClosedCaptions::GroupId(group_id) => {
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if closed_captions_none {
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return Err(Error::custom("ClosedCaptions has to be `None`"));
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}
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if !self.check_media_group(MediaType::ClosedCaptions, group_id) {
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return Err(Error::unmatched_group(group_id));
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}
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}
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_ => {
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if !closed_captions_none {
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closed_captions_none = true;
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}
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}
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}
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}
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}
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VariantStream::ExtXIFrame { stream_data, .. } => {
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if let Some(group_id) = stream_data.video() {
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if !self.check_media_group(MediaType::Video, group_id) {
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return Err(Error::unmatched_group(group_id));
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}
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}
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}
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}
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}
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Ok(())
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}
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fn validate_session_data_tags(&self) -> crate::Result<()> {
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let mut set = HashSet::new();
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if let Some(values) = &self.session_data {
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set.reserve(values.len());
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for tag in values {
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if !set.insert((tag.data_id(), tag.language())) {
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return Err(Error::custom(format!("conflict: {}", tag)));
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}
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}
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}
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Ok(())
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}
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fn check_media_group<T: AsRef<str>>(&self, media_type: MediaType, group_id: T) -> bool {
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if let Some(value) = &self.media {
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value.iter().any(|media| {
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media.media_type == media_type && media.group_id().as_ref() == group_id.as_ref()
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})
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} else {
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false
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}
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}
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}
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impl<'a> RequiredVersion for MasterPlaylistBuilder<'a> {
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fn required_version(&self) -> ProtocolVersion {
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// TODO: the .flatten() can be removed as soon as `recursive traits` are
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// supported. (RequiredVersion is implemented for Option<T>, but
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// not for Option<Option<T>>)
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// https://github.com/rust-lang/chalk/issues/12
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required_version![
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self.has_independent_segments
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.unwrap_or(false)
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.athen_some(ExtXIndependentSegments),
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self.start.flatten(),
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self.media,
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self.variant_streams,
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self.session_data,
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self.session_keys
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]
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}
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}
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impl<'a> fmt::Display for MasterPlaylist<'a> {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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writeln!(f, "{}", ExtM3u)?;
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if self.required_version() != ProtocolVersion::V1 {
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writeln!(f, "{}", ExtXVersion::new(self.required_version()))?;
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}
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for value in &self.media {
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writeln!(f, "{}", value)?;
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}
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for value in &self.variant_streams {
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writeln!(f, "{}", value)?;
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}
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for value in &self.session_data {
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writeln!(f, "{}", value)?;
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}
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for value in &self.session_keys {
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writeln!(f, "{}", value)?;
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}
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if self.has_independent_segments {
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writeln!(f, "{}", ExtXIndependentSegments)?;
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}
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if let Some(value) = &self.start {
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writeln!(f, "{}", value)?;
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}
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for value in &self.unknown_tags {
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writeln!(f, "{}", value)?;
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}
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Ok(())
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}
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}
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|
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impl<'a> TryFrom<&'a str> for MasterPlaylist<'a> {
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type Error = Error;
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|
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fn try_from(input: &'a str) -> Result<Self, Self::Error> {
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let input = tag(input, ExtM3u::PREFIX)?;
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let mut builder = Self::builder();
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let mut media = vec![];
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let mut variant_streams = vec![];
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let mut session_data = vec![];
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let mut session_keys = vec![];
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let mut unknown_tags = vec![];
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for line in Lines::from(input) {
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match line? {
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Line::Tag(tag) => {
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match tag {
|
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Tag::ExtXVersion(_) => {
|
|
// This tag can be ignored, because the
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// MasterPlaylist will automatically set the
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// ExtXVersion tag to the minimum required version
|
|
// TODO: this might be verified?
|
|
}
|
|
Tag::ExtInf(_)
|
|
| Tag::ExtXByteRange(_)
|
|
| Tag::ExtXDiscontinuity(_)
|
|
| Tag::ExtXKey(_)
|
|
| Tag::ExtXMap(_)
|
|
| Tag::ExtXProgramDateTime(_)
|
|
| Tag::ExtXDateRange(_)
|
|
| Tag::ExtXTargetDuration(_)
|
|
| Tag::ExtXMediaSequence(_)
|
|
| Tag::ExtXDiscontinuitySequence(_)
|
|
| Tag::ExtXEndList(_)
|
|
| Tag::PlaylistType(_)
|
|
| Tag::ExtXIFramesOnly(_) => {
|
|
return Err(Error::unexpected_tag(tag));
|
|
}
|
|
Tag::ExtXMedia(t) => {
|
|
media.push(t);
|
|
}
|
|
Tag::VariantStream(t) => {
|
|
variant_streams.push(t);
|
|
}
|
|
Tag::ExtXSessionData(t) => {
|
|
session_data.push(t);
|
|
}
|
|
Tag::ExtXSessionKey(t) => {
|
|
session_keys.push(t);
|
|
}
|
|
Tag::ExtXIndependentSegments(_) => {
|
|
builder.has_independent_segments(true);
|
|
}
|
|
Tag::ExtXStart(t) => {
|
|
builder.start(t);
|
|
}
|
|
Tag::Unknown(value) => {
|
|
// [6.3.1. General Client Responsibilities]
|
|
// > ignore any unrecognized tags.
|
|
unknown_tags.push(Cow::Borrowed(value));
|
|
}
|
|
}
|
|
}
|
|
Line::Uri(uri) => {
|
|
return Err(Error::custom(format!("unexpected uri: {:?}", uri)));
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
|
|
builder.media(media);
|
|
builder.variant_streams(variant_streams);
|
|
builder.session_data(session_data);
|
|
builder.session_keys(session_keys);
|
|
builder.unknown_tags(unknown_tags);
|
|
|
|
builder.build().map_err(Error::builder)
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::types::StreamData;
|
|
use pretty_assertions::assert_eq;
|
|
|
|
#[test]
|
|
fn test_audio_streams() {
|
|
let astreams = vec![
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/low/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: Some("ag0".into()),
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(150000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap(),
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/lo_mid/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: Some("ag1".into()),
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(240000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap(),
|
|
},
|
|
];
|
|
|
|
let master_playlist = MasterPlaylist::builder()
|
|
.variant_streams(astreams.clone())
|
|
.media(vec![
|
|
ExtXMedia::builder()
|
|
.media_type(MediaType::Audio)
|
|
.uri("https://www.example.com/ag0.m3u8")
|
|
.group_id("ag0")
|
|
.language("english")
|
|
.name("alternative rendition for ag0")
|
|
.build()
|
|
.unwrap(),
|
|
ExtXMedia::builder()
|
|
.media_type(MediaType::Audio)
|
|
.uri("https://www.example.com/ag1.m3u8")
|
|
.group_id("ag1")
|
|
.language("english")
|
|
.name("alternative rendition for ag1")
|
|
.build()
|
|
.unwrap(),
|
|
])
|
|
.build()
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
master_playlist.variant_streams,
|
|
master_playlist.audio_streams().collect::<Vec<_>>()
|
|
);
|
|
|
|
let mut audio_streams = master_playlist.audio_streams();
|
|
|
|
assert_eq!(audio_streams.next(), Some(&astreams[0]));
|
|
assert_eq!(audio_streams.next(), Some(&astreams[1]));
|
|
assert_eq!(audio_streams.next(), None);
|
|
}
|
|
|
|
#[test]
|
|
fn test_parser() {
|
|
assert_eq!(
|
|
MasterPlaylist::try_from(concat!(
|
|
"#EXTM3U\n",
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=150000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
|
|
"http://example.com/low/index.m3u8\n",
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=240000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
|
|
"http://example.com/lo_mid/index.m3u8\n",
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=440000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
|
|
"http://example.com/hi_mid/index.m3u8\n",
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=640000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=640x360\n",
|
|
"http://example.com/high/index.m3u8\n",
|
|
"#EXT-X-STREAM-INF:BANDWIDTH=64000,CODECS=\"mp4a.40.5\"\n",
|
|
"http://example.com/audio/index.m3u8\n"
|
|
))
|
|
.unwrap(),
|
|
MasterPlaylist::builder()
|
|
.variant_streams(vec![
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/low/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(150000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/lo_mid/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(240000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/hi_mid/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(440000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/high/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(640000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((640, 360))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/audio/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(64000)
|
|
.codecs(&["mp4a.40.5"])
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
])
|
|
.build()
|
|
.unwrap()
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_display() {
|
|
assert_eq!(
|
|
MasterPlaylist::builder()
|
|
.variant_streams(vec![
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/low/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(150000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/lo_mid/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(240000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/hi_mid/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(440000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((416, 234))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/high/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(640000)
|
|
.codecs(&["avc1.42e00a", "mp4a.40.2"])
|
|
.resolution((640, 360))
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
VariantStream::ExtXStreamInf {
|
|
uri: "http://example.com/audio/index.m3u8".into(),
|
|
frame_rate: None,
|
|
audio: None,
|
|
subtitles: None,
|
|
closed_captions: None,
|
|
stream_data: StreamData::builder()
|
|
.bandwidth(64000)
|
|
.codecs(&["mp4a.40.5"])
|
|
.build()
|
|
.unwrap()
|
|
},
|
|
])
|
|
.build()
|
|
.unwrap()
|
|
.to_string(),
|
|
concat!(
|
|
"#EXTM3U\n",
|
|
//
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=150000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
|
|
"http://example.com/low/index.m3u8\n",
|
|
//
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=240000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
|
|
"http://example.com/lo_mid/index.m3u8\n",
|
|
//
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=440000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=416x234\n",
|
|
"http://example.com/hi_mid/index.m3u8\n",
|
|
//
|
|
"#EXT-X-STREAM-INF:",
|
|
"BANDWIDTH=640000,CODECS=\"avc1.42e00a,mp4a.40.2\",RESOLUTION=640x360\n",
|
|
"http://example.com/high/index.m3u8\n",
|
|
//
|
|
"#EXT-X-STREAM-INF:BANDWIDTH=64000,CODECS=\"mp4a.40.5\"\n",
|
|
"http://example.com/audio/index.m3u8\n"
|
|
)
|
|
.to_string()
|
|
);
|
|
}
|
|
}
|