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Add tag::master_playlist module

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This commit is contained in:
Takeru Ohta 2018-02-14 18:57:15 +09:00
parent 27d152fc53
commit 93f6db8904
6 changed files with 1072 additions and 632 deletions
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6
src/attribute.rs
View file

@ -141,8 +141,9 @@ impl FromStr for HexadecimalSequence {
}
}
// TODO: delete
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct DecimalInteger(u64);
pub struct DecimalInteger(pub u64);
impl fmt::Display for DecimalInteger {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.0)
@ -168,6 +169,9 @@ impl DecimalFloatingPoint {
let n = (duration.as_secs() as f64) + (duration.subsec_nanos() as f64 / 1_000_000_000.0);
DecimalFloatingPoint(n)
}
pub fn as_f64(&self) -> f64 {
self.0
}
}
impl Eq for DecimalFloatingPoint {}
impl fmt::Display for DecimalFloatingPoint {

2
src/master_playlist.rs
View file

@ -110,10 +110,12 @@ impl FromStr for MasterPlaylist {
media_tags.push(t);
}
Tag::ExtXStreamInf(t) => {
// TODO: It MUST match the value of the GROUP-ID attribute of an EXT-X-MEDIA tag
track_assert_eq!(last_stream_inf, None, ErrorKind::InvalidInput);
last_stream_inf = Some((i, t));
}
Tag::ExtXIFrameStreamInf(t) => {
// TODO: It MUST match the value of the GROUP-ID attribute of an EXT-X-MEDIA tag
i_frame_stream_infs.push(t);
}
Tag::ExtXSessionData(t) => {

788
src/tag/master_playlist.rs Normal file
View file

@ -0,0 +1,788 @@
use std::fmt;
use std::str::FromStr;
use {Error, ErrorKind, Result};
use attribute::{AttributePairs, DecimalFloatingPoint, DecimalInteger, DecimalResolution,
QuotedString};
use types::{ClosedCaptions, DecryptionKey, HdcpLevel, InStreamId, M3u8String, MediaType,
ProtocolVersion, SessionData, YesOrNo};
/// [4.3.4.1. EXT-X-MEDIA]
///
/// [4.3.4.1. EXT-X-MEDIA]: https://tools.ietf.org/html/rfc8216#section-4.3.4.1
///
/// TODO: Add `ExtXMediaBuilder`
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct ExtXMedia {
media_type: MediaType,
uri: Option<QuotedString>,
group_id: QuotedString,
language: Option<QuotedString>,
assoc_language: Option<QuotedString>,
name: QuotedString,
default: YesOrNo,
autoselect: YesOrNo,
forced: YesOrNo,
instream_id: Option<InStreamId>,
characteristics: Option<QuotedString>,
channels: Option<QuotedString>,
}
impl ExtXMedia {
pub(crate) const PREFIX: &'static str = "#EXT-X-MEDIA:";
/// Makes a new `ExtXMedia` tag.
pub fn new(media_type: MediaType, group_id: QuotedString, name: QuotedString) -> Self {
ExtXMedia {
media_type,
uri: None,
group_id,
language: None,
assoc_language: None,
name,
default: YesOrNo::No,
autoselect: YesOrNo::No,
forced: YesOrNo::No,
instream_id: None,
characteristics: None,
channels: None,
}
}
/// Returns the type of the media associated with this tag.
pub fn media_type(&self) -> MediaType {
self.media_type
}
/// Returns the identifier that specifies the group to which the rendition belongs.
pub fn group_id(&self) -> &QuotedString {
&self.group_id
}
/// Returns a human-readable description of the rendition.
pub fn name(&self) -> &QuotedString {
&self.name
}
/// Returns the URI that identifies the media playlist.
pub fn uri(&self) -> Option<&QuotedString> {
self.uri.as_ref()
}
/// Returns the name of the primary language used in the rendition.
pub fn language(&self) -> Option<&QuotedString> {
self.language.as_ref()
}
/// Returns the name of a language associated with the rendition.
pub fn assoc_language(&self) -> Option<&QuotedString> {
self.assoc_language.as_ref()
}
/// Returns whether this is the default rendition.
pub fn default(&self) -> YesOrNo {
self.default
}
/// Returns whether the client may choose to
/// play this rendition in the absence of explicit user preference.
pub fn autoselect(&self) -> YesOrNo {
self.autoselect
}
/// Returns whether the rendition contains content that is considered essential to play.
pub fn forced(&self) -> YesOrNo {
self.forced
}
/// Returns the identifier that specifies a rendition within the segments in the media playlist.
pub fn instream_id(&self) -> Option<InStreamId> {
self.instream_id
}
/// Returns a string that represents uniform type identifiers (UTI).
///
/// Each UTI indicates an individual characteristic of the rendition.
pub fn characteristics(&self) -> Option<&QuotedString> {
self.characteristics.as_ref()
}
/// Returns a string that represents the parameters of the rendition.
pub fn channels(&self) -> Option<&QuotedString> {
self.channels.as_ref()
}
/// Returns the protocol compatibility version that this tag requires.
pub fn requires_version(&self) -> ProtocolVersion {
match self.instream_id {
None
| Some(InStreamId::Cc1)
| Some(InStreamId::Cc2)
| Some(InStreamId::Cc3)
| Some(InStreamId::Cc4) => ProtocolVersion::V1,
_ => ProtocolVersion::V7,
}
}
}
impl fmt::Display for ExtXMedia {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "TYPE={}", self.media_type)?;
if let Some(ref x) = self.uri {
write!(f, ",URI={}", x)?;
}
write!(f, ",GROUP-ID={}", self.group_id)?;
if let Some(ref x) = self.language {
write!(f, ",LANGUAGE={}", x)?;
}
if let Some(ref x) = self.assoc_language {
write!(f, ",ASSOC-LANGUAGE={}", x)?;
}
write!(f, ",NAME={}", self.name)?;
if YesOrNo::Yes == self.default {
write!(f, ",DEFAULT=YES")?;
}
if YesOrNo::Yes == self.autoselect {
write!(f, ",AUTOSELECT=YES")?;
}
if YesOrNo::Yes == self.forced {
write!(f, ",FORCED=YES")?;
}
if let Some(ref x) = self.instream_id {
write!(f, ",INSTREAM-ID=\"{}\"", x)?;
}
if let Some(ref x) = self.characteristics {
write!(f, ",CHARACTERISTICS={}", x)?;
}
if let Some(ref x) = self.channels {
write!(f, ",CHANNELS={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXMedia {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut media_type = None;
let mut uri = None;
let mut group_id = None;
let mut language = None;
let mut assoc_language = None;
let mut name = None;
let mut default = None;
let mut autoselect = None;
let mut forced = None;
let mut instream_id = None;
let mut characteristics = None;
let mut channels = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"TYPE" => media_type = Some(track!(value.parse())?),
"URI" => uri = Some(track!(value.parse())?),
"GROUP-ID" => group_id = Some(track!(value.parse())?),
"LANGUAGE" => language = Some(track!(value.parse())?),
"ASSOC-LANGUAGE" => assoc_language = Some(track!(value.parse())?),
"NAME" => name = Some(track!(value.parse())?),
"DEFAULT" => default = Some(track!(value.parse())?),
"AUTOSELECT" => autoselect = Some(track!(value.parse())?),
"FORCED" => forced = Some(track!(value.parse())?),
"INSTREAM-ID" => {
let s: QuotedString = track!(value.parse())?;
instream_id = Some(track!(s.as_str().parse())?);
}
"CHARACTERISTICS" => characteristics = Some(track!(value.parse())?),
"CHANNELS" => channels = Some(track!(value.parse())?),
_ => {
// [6.3.1. General Client Responsibilities]
// > ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let media_type = track_assert_some!(media_type, ErrorKind::InvalidInput);
let group_id = track_assert_some!(group_id, ErrorKind::InvalidInput);
let name = track_assert_some!(name, ErrorKind::InvalidInput);
if MediaType::ClosedCaptions == media_type {
track_assert_ne!(uri, None, ErrorKind::InvalidInput);
track_assert!(instream_id.is_some(), ErrorKind::InvalidInput);
} else {
track_assert!(instream_id.is_none(), ErrorKind::InvalidInput);
}
if default == Some(YesOrNo::Yes) && autoselect.is_some() {
track_assert_eq!(autoselect, Some(YesOrNo::Yes), ErrorKind::InvalidInput);
}
if MediaType::Subtitles != media_type {
track_assert_eq!(forced, None, ErrorKind::InvalidInput);
}
Ok(ExtXMedia {
media_type,
uri,
group_id,
language,
assoc_language,
name,
default: default.unwrap_or(YesOrNo::No),
autoselect: autoselect.unwrap_or(YesOrNo::No),
forced: forced.unwrap_or(YesOrNo::No),
instream_id,
characteristics,
channels,
})
}
}
/// [4.3.4.2. EXT-X-STREAM-INF]
///
/// [4.3.4.2. EXT-X-STREAM-INF]: https://tools.ietf.org/html/rfc8216#section-4.3.4.2
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ExtXStreamInf {
uri: M3u8String,
bandwidth: DecimalInteger,
average_bandwidth: Option<DecimalInteger>,
codecs: Option<QuotedString>,
resolution: Option<DecimalResolution>,
frame_rate: Option<DecimalFloatingPoint>,
hdcp_level: Option<HdcpLevel>,
audio: Option<QuotedString>,
video: Option<QuotedString>,
subtitles: Option<QuotedString>,
closed_captions: Option<ClosedCaptions>,
}
impl ExtXStreamInf {
pub(crate) const PREFIX: &'static str = "#EXT-X-STREAM-INF:";
/// Makes a new `ExtXStreamInf` tag.
pub fn new(uri: M3u8String, bandwidth: DecimalInteger) -> Self {
ExtXStreamInf {
uri,
bandwidth,
average_bandwidth: None,
codecs: None,
resolution: None,
frame_rate: None,
hdcp_level: None,
audio: None,
video: None,
subtitles: None,
closed_captions: None,
}
}
/// Returns the URI that identifies the associated media playlist.
pub fn uri(&self) -> &M3u8String {
&self.uri
}
/// Returns the peak segment bit rate of the variant stream.
pub fn bandwidth(&self) -> DecimalInteger {
self.bandwidth
}
/// Returns the average segment bit rate of the variant stream.
pub fn average_bandwidth(&self) -> Option<DecimalInteger> {
self.average_bandwidth
}
/// Returns a string that represents the list of codec types contained the variant stream.
pub fn codecs(&self) -> Option<&QuotedString> {
self.codecs.as_ref()
}
/// Returns the optimal pixel resolution at which to display all the video in the variant stream.
pub fn resolution(&self) -> Option<DecimalResolution> {
self.resolution
}
/// Returns the maximum frame rate for all the video in the variant stream.
pub fn frame_rate(&self) -> Option<DecimalFloatingPoint> {
self.frame_rate
}
/// Returns the HDCP level of the variant stream.
pub fn hdcp_level(&self) -> Option<HdcpLevel> {
self.hdcp_level
}
/// Returns the group identifier for the audio in the variant stream.
pub fn audio(&self) -> Option<&QuotedString> {
self.audio.as_ref()
}
/// Returns the group identifier for the video in the variant stream.
pub fn video(&self) -> Option<&QuotedString> {
self.video.as_ref()
}
/// Returns the group identifier for the subtitles in the variant stream.
pub fn subtitles(&self) -> Option<&QuotedString> {
self.subtitles.as_ref()
}
/// Returns the value of `CLOSED-CAPTIONS` attribute.
pub fn closed_captions(&self) -> Option<&ClosedCaptions> {
self.closed_captions.as_ref()
}
/// Returns the protocol compatibility version that this tag requires.
pub fn requires_version(&self) -> ProtocolVersion {
ProtocolVersion::V1
}
}
impl fmt::Display for ExtXStreamInf {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "BANDWIDTH={}", self.bandwidth)?;
if let Some(ref x) = self.average_bandwidth {
write!(f, ",AVERAGE-BANDWIDTH={}", x)?;
}
if let Some(ref x) = self.codecs {
write!(f, ",CODECS={}", x)?;
}
if let Some(ref x) = self.resolution {
write!(f, ",RESOLUTION={}", x)?;
}
if let Some(ref x) = self.frame_rate {
write!(f, ",FRAME-RATE={:.3}", x.as_f64())?;
}
if let Some(ref x) = self.hdcp_level {
write!(f, ",HDCP-LEVEL={}", x)?;
}
if let Some(ref x) = self.audio {
write!(f, ",AUDIO={}", x)?;
}
if let Some(ref x) = self.video {
write!(f, ",VIDEO={}", x)?;
}
if let Some(ref x) = self.subtitles {
write!(f, ",SUBTITLES={}", x)?;
}
if let Some(ref x) = self.closed_captions {
write!(f, ",CLOSED-CAPTIONS={}", x)?;
}
write!(f, "\n{}", self.uri)?;
Ok(())
}
}
impl FromStr for ExtXStreamInf {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
let mut lines = s.splitn(2, '\n'); // TODO:
let first_line = lines.next().expect("Never fails");
let second_line = track_assert_some!(lines.next(), ErrorKind::InvalidInput);
track_assert!(
first_line.starts_with(Self::PREFIX),
ErrorKind::InvalidInput
);
let uri = track!(M3u8String::new(second_line))?;
let mut bandwidth = None;
let mut average_bandwidth = None;
let mut codecs = None;
let mut resolution = None;
let mut frame_rate = None;
let mut hdcp_level = None;
let mut audio = None;
let mut video = None;
let mut subtitles = None;
let mut closed_captions = None;
let attrs = AttributePairs::parse(first_line.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"BANDWIDTH" => bandwidth = Some(track!(value.parse())?),
"AVERAGE-BANDWIDTH" => average_bandwidth = Some(track!(value.parse())?),
"CODECS" => codecs = Some(track!(value.parse())?),
"RESOLUTION" => resolution = Some(track!(value.parse())?),
"FRAME-RATE" => frame_rate = Some(track!(value.parse())?),
"HDCP-LEVEL" => hdcp_level = Some(track!(value.parse())?),
"AUDIO" => audio = Some(track!(value.parse())?),
"VIDEO" => video = Some(track!(value.parse())?),
"SUBTITLES" => subtitles = Some(track!(value.parse())?),
"CLOSED-CAPTIONS" => closed_captions = Some(track!(value.parse())?),
_ => {
// [6.3.1. General Client Responsibilities]
// > ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let bandwidth = track_assert_some!(bandwidth, ErrorKind::InvalidInput);
Ok(ExtXStreamInf {
uri,
bandwidth,
average_bandwidth,
codecs,
resolution,
frame_rate,
hdcp_level,
audio,
video,
subtitles,
closed_captions,
})
}
}
/// [4.3.4.3. EXT-X-I-FRAME-STREAM-INF]
///
/// [4.3.4.3. EXT-X-I-FRAME-STREAM-INF]: https://tools.ietf.org/html/rfc8216#section-4.3.4.3
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct ExtXIFrameStreamInf {
uri: QuotedString,
bandwidth: DecimalInteger,
average_bandwidth: Option<DecimalInteger>,
codecs: Option<QuotedString>,
resolution: Option<DecimalResolution>,
hdcp_level: Option<HdcpLevel>,
video: Option<QuotedString>,
}
impl ExtXIFrameStreamInf {
pub(crate) const PREFIX: &'static str = "#EXT-X-I-FRAME-STREAM-INF:";
/// Makes a new `ExtXIFrameStreamInf` tag.
pub fn new(uri: QuotedString, bandwidth: DecimalInteger) -> Self {
ExtXIFrameStreamInf {
uri,
bandwidth,
average_bandwidth: None,
codecs: None,
resolution: None,
hdcp_level: None,
video: None,
}
}
/// Returns the URI that identifies the associated media playlist.
pub fn uri(&self) -> &QuotedString {
&self.uri
}
/// Returns the peak segment bit rate of the variant stream.
pub fn bandwidth(&self) -> DecimalInteger {
self.bandwidth
}
/// Returns the average segment bit rate of the variant stream.
pub fn average_bandwidth(&self) -> Option<DecimalInteger> {
self.average_bandwidth
}
/// Returns a string that represents the list of codec types contained the variant stream.
pub fn codecs(&self) -> Option<&QuotedString> {
self.codecs.as_ref()
}
/// Returns the optimal pixel resolution at which to display all the video in the variant stream.
pub fn resolution(&self) -> Option<DecimalResolution> {
self.resolution
}
/// Returns the HDCP level of the variant stream.
pub fn hdcp_level(&self) -> Option<HdcpLevel> {
self.hdcp_level
}
/// Returns the group identifier for the video in the variant stream.
pub fn video(&self) -> Option<&QuotedString> {
self.video.as_ref()
}
/// Returns the protocol compatibility version that this tag requires.
pub fn requires_version(&self) -> ProtocolVersion {
ProtocolVersion::V1
}
}
impl fmt::Display for ExtXIFrameStreamInf {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "URI={}", self.uri)?;
write!(f, ",BANDWIDTH={}", self.bandwidth)?;
if let Some(ref x) = self.average_bandwidth {
write!(f, ",AVERAGE-BANDWIDTH={}", x)?;
}
if let Some(ref x) = self.codecs {
write!(f, ",CODECS={}", x)?;
}
if let Some(ref x) = self.resolution {
write!(f, ",RESOLUTION={}", x)?;
}
if let Some(ref x) = self.hdcp_level {
write!(f, ",HDCP-LEVEL={}", x)?;
}
if let Some(ref x) = self.video {
write!(f, ",VIDEO={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXIFrameStreamInf {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut uri = None;
let mut bandwidth = None;
let mut average_bandwidth = None;
let mut codecs = None;
let mut resolution = None;
let mut hdcp_level = None;
let mut video = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"URI" => uri = Some(track!(value.parse())?),
"BANDWIDTH" => bandwidth = Some(track!(value.parse())?),
"AVERAGE-BANDWIDTH" => average_bandwidth = Some(track!(value.parse())?),
"CODECS" => codecs = Some(track!(value.parse())?),
"RESOLUTION" => resolution = Some(track!(value.parse())?),
"HDCP-LEVEL" => hdcp_level = Some(track!(value.parse())?),
"VIDEO" => video = Some(track!(value.parse())?),
_ => {
// [6.3.1. General Client Responsibilities]
// > ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let uri = track_assert_some!(uri, ErrorKind::InvalidInput);
let bandwidth = track_assert_some!(bandwidth, ErrorKind::InvalidInput);
Ok(ExtXIFrameStreamInf {
uri,
bandwidth,
average_bandwidth,
codecs,
resolution,
hdcp_level,
video,
})
}
}
/// [4.3.4.4. EXT-X-SESSION-DATA]
///
/// [4.3.4.4. EXT-X-SESSION-DATA]: https://tools.ietf.org/html/rfc8216#section-4.3.4.4
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct ExtXSessionData {
data_id: QuotedString,
data: SessionData,
language: Option<QuotedString>,
}
impl ExtXSessionData {
pub(crate) const PREFIX: &'static str = "#EXT-X-SESSION-DATA:";
/// Makes a new `ExtXSessionData` tag.
pub fn new(data_id: QuotedString, data: SessionData) -> Self {
ExtXSessionData {
data_id,
data,
language: None,
}
}
/// Makes a new `ExtXSessionData` with the given language.
pub fn with_language(data_id: QuotedString, data: SessionData, language: QuotedString) -> Self {
ExtXSessionData {
data_id,
data,
language: Some(language),
}
}
/// Returns the identifier of the data.
pub fn data_id(&self) -> &QuotedString {
&self.data_id
}
/// Returns the session data.
pub fn data(&self) -> &SessionData {
&self.data
}
/// Returns the language of the data.
pub fn language(&self) -> Option<&QuotedString> {
self.language.as_ref()
}
/// Returns the protocol compatibility version that this tag requires.
pub fn requires_version(&self) -> ProtocolVersion {
ProtocolVersion::V1
}
}
impl fmt::Display for ExtXSessionData {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "DATA-ID={}", self.data_id)?;
match self.data {
SessionData::Value(ref x) => write!(f, ",VALUE={}", x)?,
SessionData::Uri(ref x) => write!(f, ",URI={}", x)?,
}
if let Some(ref x) = self.language {
write!(f, ",LANGUAGE={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXSessionData {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut data_id = None;
let mut session_value = None;
let mut uri = None;
let mut language = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"DATA-ID" => data_id = Some(track!(value.parse())?),
"VALUE" => session_value = Some(track!(value.parse())?),
"URI" => uri = Some(track!(value.parse())?),
"LANGUAGE" => language = Some(track!(value.parse())?),
_ => {
// [6.3.1. General Client Responsibilities]
// > ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let data_id = track_assert_some!(data_id, ErrorKind::InvalidInput);
let data = if let Some(value) = session_value {
track_assert_eq!(uri, None, ErrorKind::InvalidInput);
SessionData::Value(value)
} else if let Some(uri) = uri {
SessionData::Uri(uri)
} else {
track_panic!(ErrorKind::InvalidInput);
};
Ok(ExtXSessionData {
data_id,
data,
language,
})
}
}
/// [4.3.4.5. EXT-X-SESSION-KEY]
///
/// [4.3.4.5. EXT-X-SESSION-KEY]: https://tools.ietf.org/html/rfc8216#section-4.3.4.5
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct ExtXSessionKey {
key: DecryptionKey,
}
impl ExtXSessionKey {
pub(crate) const PREFIX: &'static str = "#EXT-X-SESSION-KEY:";
/// Makes a new `ExtXSessionKey` tag.
pub fn new(key: DecryptionKey) -> Self {
ExtXSessionKey { key }
}
/// Returns a decryption key for the playlist.
pub fn key(&self) -> &DecryptionKey {
&self.key
}
/// Returns the protocol compatibility version that this tag requires.
pub fn requires_version(&self) -> ProtocolVersion {
self.key.requires_version()
}
}
impl fmt::Display for ExtXSessionKey {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}{}", Self::PREFIX, self.key)
}
}
impl FromStr for ExtXSessionKey {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let suffix = s.split_at(Self::PREFIX.len()).1;
let key = track!(suffix.parse())?;
Ok(ExtXSessionKey { key })
}
}
#[cfg(test)]
mod test {
use attribute::HexadecimalSequence;
use types::EncryptionMethod;
use super::*;
#[test]
fn ext_x_media() {
let tag = ExtXMedia::new(MediaType::Audio, quoted_string("foo"), quoted_string("bar"));
let text = r#"#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="foo",NAME="bar""#;
assert_eq!(text.parse().ok(), Some(tag.clone()));
assert_eq!(tag.to_string(), text);
assert_eq!(tag.requires_version(), ProtocolVersion::V1);
}
#[test]
fn ext_x_stream_inf() {
let tag = ExtXStreamInf::new(M3u8String::new("foo").unwrap(), DecimalInteger(1000));
let text = "#EXT-X-STREAM-INF:BANDWIDTH=1000\nfoo";
assert_eq!(text.parse().ok(), Some(tag.clone()));
assert_eq!(tag.to_string(), text);
assert_eq!(tag.requires_version(), ProtocolVersion::V1);
}
#[test]
fn ext_x_i_frame_stream_inf() {
let tag = ExtXIFrameStreamInf::new(quoted_string("foo"), DecimalInteger(1000));
let text = r#"#EXT-X-I-FRAME-STREAM-INF:URI="foo",BANDWIDTH=1000"#;
assert_eq!(text.parse().ok(), Some(tag.clone()));
assert_eq!(tag.to_string(), text);
assert_eq!(tag.requires_version(), ProtocolVersion::V1);
}
#[test]
fn ext_x_session_data() {
let tag = ExtXSessionData::new(
quoted_string("foo"),
SessionData::Value(quoted_string("bar")),
);
let text = r#"#EXT-X-SESSION-DATA:DATA-ID="foo",VALUE="bar""#;
assert_eq!(text.parse().ok(), Some(tag.clone()));
assert_eq!(tag.to_string(), text);
assert_eq!(tag.requires_version(), ProtocolVersion::V1);
let tag =
ExtXSessionData::new(quoted_string("foo"), SessionData::Uri(quoted_string("bar")));
let text = r#"#EXT-X-SESSION-DATA:DATA-ID="foo",URI="bar""#;
assert_eq!(text.parse().ok(), Some(tag.clone()));
assert_eq!(tag.to_string(), text);
assert_eq!(tag.requires_version(), ProtocolVersion::V1);
let tag = ExtXSessionData::with_language(
quoted_string("foo"),
SessionData::Value(quoted_string("bar")),
quoted_string("baz"),
);
let text = r#"#EXT-X-SESSION-DATA:DATA-ID="foo",VALUE="bar",LANGUAGE="baz""#;
assert_eq!(text.parse().ok(), Some(tag.clone()));
assert_eq!(tag.to_string(), text);
assert_eq!(tag.requires_version(), ProtocolVersion::V1);
}
#[test]
fn ext_x_session_key() {
let tag = ExtXSessionKey::new(DecryptionKey {
method: EncryptionMethod::Aes128,
uri: quoted_string("foo"),
iv: Some(HexadecimalSequence::new(vec![0, 1, 2])),
key_format: None,
key_format_versions: None,
});
let text = r#"#EXT-X-SESSION-KEY:METHOD=AES-128,URI="foo",IV=0x000102"#;
assert_eq!(text.parse().ok(), Some(tag.clone()));
assert_eq!(tag.to_string(), text);
assert_eq!(tag.requires_version(), ProtocolVersion::V2);
}
fn quoted_string(s: &str) -> QuotedString {
QuotedString::new(s).unwrap()
}
}

34
src/tag/media_segment.rs
View file

@ -283,14 +283,8 @@ impl FromStr for ExtXMap {
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"URI" => {
track_assert_eq!(uri, None, ErrorKind::InvalidInput);
uri = Some(track!(value.parse())?);
}
"BYTERANGE" => {
track_assert_eq!(range, None, ErrorKind::InvalidInput);
range = Some(track!(value.parse())?);
}
"URI" => uri = Some(track!(value.parse())?),
"BYTERANGE" => range = Some(track!(value.parse())?),
_ => {
// [6.3.1. General Client Responsibilities]
// > ignore any attribute/value pair with an unrecognized AttributeName.
@ -435,12 +429,8 @@ impl FromStr for ExtXDateRange {
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"ID" => {
id = Some(track!(value.parse())?);
}
"CLASS" => {
class = Some(track!(value.parse())?);
}
"ID" => id = Some(track!(value.parse())?),
"CLASS" => class = Some(track!(value.parse())?),
"START-DATE" => {
let s: QuotedString = track!(value.parse())?;
start_date = Some(track!(
@ -463,18 +453,10 @@ impl FromStr for ExtXDateRange {
let seconds: DecimalFloatingPoint = track!(value.parse())?;
planned_duration = Some(seconds.to_duration());
}
"SCTE35-CMD" => {
scte35_cmd = Some(track!(value.parse())?);
}
"SCTE35-OUT" => {
scte35_out = Some(track!(value.parse())?);
}
"SCTE35-IN" => {
scte35_in = Some(track!(value.parse())?);
}
"END-ON-NEXT" => {
end_on_next = Some(track!(value.parse())?);
}
"SCTE35-CMD" => scte35_cmd = Some(track!(value.parse())?),
"SCTE35-OUT" => scte35_out = Some(track!(value.parse())?),
"SCTE35-IN" => scte35_in = Some(track!(value.parse())?),
"END-ON-NEXT" => end_on_next = Some(track!(value.parse())?),
_ => {
if key.starts_with("X-") {
client_attributes.insert(key.split_at(2).1.to_owned(), value.to_owned());

610
src/tag/mod.rs
View file

@ -5,8 +5,8 @@ use std::fmt;
use std::str::FromStr;
use {Error, ErrorKind, Result};
use attribute::{AttributePairs, DecimalFloatingPoint, DecimalInteger, DecimalResolution,
HexadecimalSequence, QuotedString, SignedDecimalFloatingPoint};
use attribute::{AttributePairs, SignedDecimalFloatingPoint};
use types::YesOrNo;
macro_rules! may_invalid {
($expr:expr) => {
@ -25,12 +25,15 @@ macro_rules! impl_from {
}
pub use self::basic::{ExtM3u, ExtXVersion};
pub use self::master_playlist::{ExtXIFrameStreamInf, ExtXMedia, ExtXSessionData, ExtXSessionKey,
ExtXStreamInf};
pub use self::media_playlist::{ExtXDiscontinuitySequence, ExtXEndList, ExtXIFramesOnly,
ExtXMediaSequence, ExtXPlaylistType, ExtXTargetDuration};
pub use self::media_segment::{ExtInf, ExtXByteRange, ExtXDateRange, ExtXDiscontinuity, ExtXKey,
ExtXMap, ExtXProgramDateTime};
mod basic;
mod master_playlist;
mod media_playlist;
mod media_segment;
@ -227,580 +230,6 @@ impl FromStr for Tag {
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum MediaType {
Audio,
Video,
Subtitles,
ClosedCaptions,
}
impl fmt::Display for MediaType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
MediaType::Audio => "AUDIO".fmt(f),
MediaType::Video => "VIDEO".fmt(f),
MediaType::Subtitles => "SUBTITLES".fmt(f),
MediaType::ClosedCaptions => "CLOSED-CAPTIONS".fmt(f),
}
}
}
impl FromStr for MediaType {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
Ok(match s {
"AUDIO" => MediaType::Audio,
"VIDEO" => MediaType::Video,
"SUBTITLES" => MediaType::Subtitles,
"CLOSED-CAPTIONS" => MediaType::ClosedCaptions,
_ => track_panic!(ErrorKind::InvalidInput, "Unknown media type: {:?}", s),
})
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum YesOrNo {
Yes,
No,
}
impl fmt::Display for YesOrNo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
YesOrNo::Yes => "YES".fmt(f),
YesOrNo::No => "NO".fmt(f),
}
}
}
impl FromStr for YesOrNo {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
match s {
"YES" => Ok(YesOrNo::Yes),
"NO" => Ok(YesOrNo::No),
_ => track_panic!(
ErrorKind::InvalidInput,
"Unexpected enumerated-string: {:?}",
s
),
}
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ExtXMedia {
media_type: MediaType,
uri: Option<QuotedString>,
group_id: QuotedString,
language: Option<QuotedString>,
assoc_language: Option<QuotedString>,
name: QuotedString,
default: YesOrNo,
autoselect: YesOrNo,
forced: Option<YesOrNo>,
instream_id: Option<QuotedString>, // TODO: `InStreamId` type
characteristics: Option<QuotedString>,
channels: Option<QuotedString>,
}
impl ExtXMedia {
const PREFIX: &'static str = "#EXT-X-MEDIA:";
}
impl fmt::Display for ExtXMedia {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "TYPE={}", self.media_type)?;
if let Some(ref x) = self.uri {
write!(f, ",URI={}", x)?;
}
write!(f, ",GROUP_ID={}", self.group_id)?;
if let Some(ref x) = self.language {
write!(f, ",LANGUAGE={}", x)?;
}
if let Some(ref x) = self.assoc_language {
write!(f, ",ASSOC-LANGUAGE={}", x)?;
}
write!(f, ",NAME={}", self.name)?;
if YesOrNo::Yes == self.default {
write!(f, ",DEFAULT={}", self.default)?;
}
if YesOrNo::Yes == self.autoselect {
write!(f, ",AUTOSELECT={}", self.autoselect)?;
}
if let Some(ref x) = self.forced {
write!(f, ",FORCED={}", x)?;
}
if let Some(ref x) = self.instream_id {
write!(f, ",INSTREAM-ID={}", x)?;
}
if let Some(ref x) = self.characteristics {
write!(f, ",CHARACTERISTICS={}", x)?;
}
if let Some(ref x) = self.channels {
write!(f, ",CHANNELS={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXMedia {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut media_type = None;
let mut uri = None;
let mut group_id = None;
let mut language = None;
let mut assoc_language = None;
let mut name = None;
let mut default = None;
let mut autoselect = None;
let mut forced = None;
let mut instream_id = None;
let mut characteristics = None;
let mut channels = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"TYPE" => media_type = Some(track!(value.parse())?),
"URI" => uri = Some(track!(value.parse())?),
"GROUP-ID" => group_id = Some(track!(value.parse())?),
"LANGUAGE" => language = Some(track!(value.parse())?),
"ASSOC-LANGUAGE" => assoc_language = Some(track!(value.parse())?),
"NAME" => name = Some(track!(value.parse())?),
"DEFAULT" => default = Some(track!(value.parse())?),
"AUTOSELECT" => autoselect = Some(track!(value.parse())?),
"FORCED" => forced = Some(track!(value.parse())?),
"INSTREAM-ID" => instream_id = Some(track!(value.parse())?),
"CHARACTERISTICS" => characteristics = Some(track!(value.parse())?),
"CHANNELS" => channels = Some(track!(value.parse())?),
_ => {
// [6.3.1] ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let media_type = track_assert_some!(media_type, ErrorKind::InvalidInput);
let group_id = track_assert_some!(group_id, ErrorKind::InvalidInput);
let name = track_assert_some!(name, ErrorKind::InvalidInput);
if MediaType::ClosedCaptions == media_type {
track_assert_ne!(uri, None, ErrorKind::InvalidInput);
track_assert!(instream_id.is_some(), ErrorKind::InvalidInput);
} else {
track_assert!(instream_id.is_none(), ErrorKind::InvalidInput);
}
if MediaType::Subtitles != media_type {
track_assert_eq!(forced, None, ErrorKind::InvalidInput);
}
Ok(ExtXMedia {
media_type,
uri,
group_id,
language,
assoc_language,
name,
default: default.unwrap_or(YesOrNo::No),
autoselect: autoselect.unwrap_or(YesOrNo::No),
forced,
instream_id,
characteristics,
channels,
})
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum HdcpLevel {
Type0,
None,
}
impl fmt::Display for HdcpLevel {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
HdcpLevel::Type0 => "TYPE-0".fmt(f),
HdcpLevel::None => "NONE".fmt(f),
}
}
}
impl FromStr for HdcpLevel {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
match s {
"TYPE-0" => Ok(HdcpLevel::Type0),
"NONE" => Ok(HdcpLevel::None),
_ => track_panic!(ErrorKind::InvalidInput, "Unknown HDCP level: {:?}", s),
}
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub enum ClosedCaptions {
GroupId(QuotedString),
None,
}
impl fmt::Display for ClosedCaptions {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
ClosedCaptions::GroupId(ref x) => x.fmt(f),
ClosedCaptions::None => "NONE".fmt(f),
}
}
}
impl FromStr for ClosedCaptions {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
if s == "NONE" {
Ok(ClosedCaptions::None)
} else {
Ok(ClosedCaptions::GroupId(track!(s.parse())?))
}
}
}
// TODO: The URI line is REQUIRED.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ExtXStreamInf {
bandwidth: DecimalInteger,
average_bandwidth: Option<DecimalInteger>,
codecs: Option<QuotedString>,
resolution: Option<DecimalResolution>,
// TODO: rounded to three decimal places
frame_rate: Option<DecimalFloatingPoint>,
hdcp_level: Option<HdcpLevel>,
audio: Option<QuotedString>,
video: Option<QuotedString>,
subtitles: Option<QuotedString>,
closed_captions: Option<ClosedCaptions>,
}
impl ExtXStreamInf {
const PREFIX: &'static str = "#EXT-X-STREAM-INF:";
}
impl fmt::Display for ExtXStreamInf {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "BANDWIDTH={}", self.bandwidth)?;
if let Some(ref x) = self.average_bandwidth {
write!(f, ",AVERAGE-BANDWIDTH={}", x)?;
}
if let Some(ref x) = self.codecs {
write!(f, ",CODECS={}", x)?;
}
if let Some(ref x) = self.resolution {
write!(f, ",RESOLUTION={}", x)?;
}
if let Some(ref x) = self.frame_rate {
write!(f, ",FRAME-RATE={}", x)?;
}
if let Some(ref x) = self.hdcp_level {
write!(f, ",HDCP-LEVEL={}", x)?;
}
if let Some(ref x) = self.audio {
write!(f, ",AUDIO={}", x)?;
}
if let Some(ref x) = self.video {
write!(f, ",VIDEO={}", x)?;
}
if let Some(ref x) = self.subtitles {
write!(f, ",SUBTITLES={}", x)?;
}
if let Some(ref x) = self.closed_captions {
write!(f, ",CLOSED-CAPTIONS={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXStreamInf {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut bandwidth = None;
let mut average_bandwidth = None;
let mut codecs = None;
let mut resolution = None;
let mut frame_rate = None;
let mut hdcp_level = None;
let mut audio = None;
let mut video = None;
let mut subtitles = None;
let mut closed_captions = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"BANDWIDTH" => bandwidth = Some(track!(value.parse())?),
"AVERAGE-BANDWIDTH" => average_bandwidth = Some(track!(value.parse())?),
"CODECS" => codecs = Some(track!(value.parse())?),
"RESOLUTION" => resolution = Some(track!(value.parse())?),
"FRAME-RATE" => frame_rate = Some(track!(value.parse())?),
"HDCP-LEVEL" => hdcp_level = Some(track!(value.parse())?),
"AUDIO" => {
// TODO: It MUST match the value of the GROUP-ID attribute of an EXT-X-MEDIA tag
audio = Some(track!(value.parse())?);
}
"VIDEO" => {
// TODO: It MUST match the value of the GROUP-ID attribute of an EXT-X-MEDIA tag
video = Some(track!(value.parse())?);
}
"SUBTITLES" => {
// TODO: It MUST match the value of the GROUP-ID attribute of an EXT-X-MEDIA tag
subtitles = Some(track!(value.parse())?);
}
"CLOSED-CAPTIONS" => {
// TODO: validate
closed_captions = Some(track!(value.parse())?);
}
_ => {
// [6.3.1] ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let bandwidth = track_assert_some!(bandwidth, ErrorKind::InvalidInput);
Ok(ExtXStreamInf {
bandwidth,
average_bandwidth,
codecs,
resolution,
frame_rate,
hdcp_level,
audio,
video,
subtitles,
closed_captions,
})
}
}
// TODO: That Playlist file MUST contain an EXT-X-I-FRAMES-ONLY tag.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ExtXIFrameStreamInf {
uri: QuotedString,
bandwidth: DecimalInteger,
average_bandwidth: Option<DecimalInteger>,
codecs: Option<QuotedString>,
resolution: Option<DecimalResolution>,
hdcp_level: Option<HdcpLevel>,
video: Option<QuotedString>,
}
impl ExtXIFrameStreamInf {
const PREFIX: &'static str = "#EXT-X-I-FRAME-STREAM-INF:";
}
impl fmt::Display for ExtXIFrameStreamInf {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "URI={}", self.uri)?;
write!(f, ",BANDWIDTH={}", self.bandwidth)?;
if let Some(ref x) = self.average_bandwidth {
write!(f, ",AVERAGE-BANDWIDTH={}", x)?;
}
if let Some(ref x) = self.codecs {
write!(f, ",CODECS={}", x)?;
}
if let Some(ref x) = self.resolution {
write!(f, ",RESOLUTION={}", x)?;
}
if let Some(ref x) = self.hdcp_level {
write!(f, ",HDCP-LEVEL={}", x)?;
}
if let Some(ref x) = self.video {
write!(f, ",VIDEO={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXIFrameStreamInf {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut uri = None;
let mut bandwidth = None;
let mut average_bandwidth = None;
let mut codecs = None;
let mut resolution = None;
let mut hdcp_level = None;
let mut video = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"URI" => uri = Some(track!(value.parse())?),
"BANDWIDTH" => bandwidth = Some(track!(value.parse())?),
"AVERAGE-BANDWIDTH" => average_bandwidth = Some(track!(value.parse())?),
"CODECS" => codecs = Some(track!(value.parse())?),
"RESOLUTION" => resolution = Some(track!(value.parse())?),
"HDCP-LEVEL" => hdcp_level = Some(track!(value.parse())?),
"VIDEO" => {
// TODO:
video = Some(track!(value.parse())?);
}
_ => {
// [6.3.1] ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let uri = track_assert_some!(uri, ErrorKind::InvalidInput);
let bandwidth = track_assert_some!(bandwidth, ErrorKind::InvalidInput);
Ok(ExtXIFrameStreamInf {
uri,
bandwidth,
average_bandwidth,
codecs,
resolution,
hdcp_level,
video,
})
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum SessionData {
Value(QuotedString),
Uri(QuotedString),
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ExtXSessionData {
pub data_id: QuotedString,
pub data: SessionData,
pub language: Option<QuotedString>,
}
impl ExtXSessionData {
const PREFIX: &'static str = "#EXT-X-SESSION-DATA:";
}
impl fmt::Display for ExtXSessionData {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "DATA-ID={}", self.data_id)?;
match self.data {
SessionData::Value(ref x) => write!(f, ",VALUE={}", x)?,
SessionData::Uri(ref x) => write!(f, ",URI={}", x)?,
}
if let Some(ref x) = self.language {
write!(f, ",LANGUAGE={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXSessionData {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut data_id = None;
let mut session_value = None;
let mut uri = None;
let mut language = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"DATA-ID" => data_id = Some(track!(value.parse())?),
"VALUE" => session_value = Some(track!(value.parse())?),
"URI" => uri = Some(track!(value.parse())?),
"LANGUAGE" => language = Some(track!(value.parse())?),
_ => {
// [6.3.1] ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let data_id = track_assert_some!(data_id, ErrorKind::InvalidInput);
let data = if let Some(value) = session_value {
track_assert_eq!(uri, None, ErrorKind::InvalidInput);
SessionData::Value(value)
} else if let Some(uri) = uri {
SessionData::Uri(uri)
} else {
track_panic!(ErrorKind::InvalidInput);
};
Ok(ExtXSessionData {
data_id,
data,
language,
})
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ExtXSessionKey {
pub method: SessionEncryptionMethod,
pub uri: QuotedString,
pub iv: Option<HexadecimalSequence>,
pub key_format: Option<QuotedString>,
pub key_format_versions: Option<QuotedString>,
}
impl ExtXSessionKey {
const PREFIX: &'static str = "#EXT-X-SESSION-KEY:";
}
impl fmt::Display for ExtXSessionKey {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::PREFIX)?;
write!(f, "METHOD={}", self.method)?;
write!(f, ",URI={}", self.uri)?;
if let Some(ref x) = self.iv {
write!(f, ",IV={}", x)?;
}
if let Some(ref x) = self.key_format {
write!(f, ",KEYFORMAT={}", x)?;
}
if let Some(ref x) = self.key_format_versions {
write!(f, ",KEYFORMATVERSIONS={}", x)?;
}
Ok(())
}
}
impl FromStr for ExtXSessionKey {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert!(s.starts_with(Self::PREFIX), ErrorKind::InvalidInput);
let mut method = None;
let mut uri = None;
let mut iv = None;
let mut key_format = None;
let mut key_format_versions = None;
let attrs = AttributePairs::parse(s.split_at(Self::PREFIX.len()).1);
for attr in attrs {
let (key, value) = track!(attr)?;
match key {
"METHOD" => {
track_assert_eq!(method, None, ErrorKind::InvalidInput);
method = Some(track!(value.parse())?);
}
"URI" => {
track_assert_eq!(uri, None, ErrorKind::InvalidInput);
uri = Some(track!(value.parse())?);
}
"IV" => {
// TODO: validate length(128-bit)
track_assert_eq!(iv, None, ErrorKind::InvalidInput);
iv = Some(track!(value.parse())?);
}
"KEYFORMAT" => {
track_assert_eq!(key_format, None, ErrorKind::InvalidInput);
key_format = Some(track!(value.parse())?);
}
"KEYFORMATVERSIONS" => {
track_assert_eq!(key_format_versions, None, ErrorKind::InvalidInput);
key_format_versions = Some(track!(value.parse())?);
}
_ => {
// [6.3.1] ignore any attribute/value pair with an unrecognized AttributeName.
}
}
}
let method = track_assert_some!(method, ErrorKind::InvalidInput);
let uri = track_assert_some!(uri, ErrorKind::InvalidInput);
Ok(ExtXSessionKey {
method,
uri,
iv,
key_format,
key_format_versions,
})
}
}
// 4.3.5. Media or Master Playlist Tags
// TODO: A tag that appears in both MUST have the same value; otherwise, clients SHOULD ignore the value in the Media Playlist(s).
// TODO: These tags MUST NOT appear more than once in a Playlist.
@ -867,32 +296,3 @@ impl FromStr for ExtXStart {
})
}
}
// TODO: move
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum SessionEncryptionMethod {
Aes128,
SampleAes,
}
impl fmt::Display for SessionEncryptionMethod {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
SessionEncryptionMethod::Aes128 => "AES-128".fmt(f),
SessionEncryptionMethod::SampleAes => "SAMPLE-AES".fmt(f),
}
}
}
impl FromStr for SessionEncryptionMethod {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
match s {
"AES-128" => Ok(SessionEncryptionMethod::Aes128),
"SAMPLE-AES" => Ok(SessionEncryptionMethod::SampleAes),
_ => track_panic!(
ErrorKind::InvalidInput,
"Unknown encryption method: {:?}",
s
),
}
}
}

264
src/types.rs
View file

@ -261,3 +261,267 @@ impl FromStr for PlaylistType {
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum MediaType {
Audio,
Video,
Subtitles,
ClosedCaptions,
}
impl fmt::Display for MediaType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
MediaType::Audio => "AUDIO".fmt(f),
MediaType::Video => "VIDEO".fmt(f),
MediaType::Subtitles => "SUBTITLES".fmt(f),
MediaType::ClosedCaptions => "CLOSED-CAPTIONS".fmt(f),
}
}
}
impl FromStr for MediaType {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
Ok(match s {
"AUDIO" => MediaType::Audio,
"VIDEO" => MediaType::Video,
"SUBTITLES" => MediaType::Subtitles,
"CLOSED-CAPTIONS" => MediaType::ClosedCaptions,
_ => track_panic!(ErrorKind::InvalidInput, "Unknown media type: {:?}", s),
})
}
}
// TODO: remove
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum YesOrNo {
Yes,
No,
}
impl fmt::Display for YesOrNo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
YesOrNo::Yes => "YES".fmt(f),
YesOrNo::No => "NO".fmt(f),
}
}
}
impl FromStr for YesOrNo {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
match s {
"YES" => Ok(YesOrNo::Yes),
"NO" => Ok(YesOrNo::No),
_ => track_panic!(
ErrorKind::InvalidInput,
"Unexpected enumerated-string: {:?}",
s
),
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum InStreamId {
Cc1,
Cc2,
Cc3,
Cc4,
Service1,
Service2,
Service3,
Service4,
Service5,
Service6,
Service7,
Service8,
Service9,
Service10,
Service11,
Service12,
Service13,
Service14,
Service15,
Service16,
Service17,
Service18,
Service19,
Service20,
Service21,
Service22,
Service23,
Service24,
Service25,
Service26,
Service27,
Service28,
Service29,
Service30,
Service31,
Service32,
Service33,
Service34,
Service35,
Service36,
Service37,
Service38,
Service39,
Service40,
Service41,
Service42,
Service43,
Service44,
Service45,
Service46,
Service47,
Service48,
Service49,
Service50,
Service51,
Service52,
Service53,
Service54,
Service55,
Service56,
Service57,
Service58,
Service59,
Service60,
Service61,
Service62,
Service63,
}
impl fmt::Display for InStreamId {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
format!("{:?}", self).to_uppercase().fmt(f)
}
}
impl FromStr for InStreamId {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
Ok(match s {
"CC1" => InStreamId::Cc1,
"CC2" => InStreamId::Cc2,
"CC3" => InStreamId::Cc3,
"CC4" => InStreamId::Cc4,
"SERVICE1" => InStreamId::Service1,
"SERVICE2" => InStreamId::Service2,
"SERVICE3" => InStreamId::Service3,
"SERVICE4" => InStreamId::Service4,
"SERVICE5" => InStreamId::Service5,
"SERVICE6" => InStreamId::Service6,
"SERVICE7" => InStreamId::Service7,
"SERVICE8" => InStreamId::Service8,
"SERVICE9" => InStreamId::Service9,
"SERVICE10" => InStreamId::Service10,
"SERVICE11" => InStreamId::Service11,
"SERVICE12" => InStreamId::Service12,
"SERVICE13" => InStreamId::Service13,
"SERVICE14" => InStreamId::Service14,
"SERVICE15" => InStreamId::Service15,
"SERVICE16" => InStreamId::Service16,
"SERVICE17" => InStreamId::Service17,
"SERVICE18" => InStreamId::Service18,
"SERVICE19" => InStreamId::Service19,
"SERVICE20" => InStreamId::Service20,
"SERVICE21" => InStreamId::Service21,
"SERVICE22" => InStreamId::Service22,
"SERVICE23" => InStreamId::Service23,
"SERVICE24" => InStreamId::Service24,
"SERVICE25" => InStreamId::Service25,
"SERVICE26" => InStreamId::Service26,
"SERVICE27" => InStreamId::Service27,
"SERVICE28" => InStreamId::Service28,
"SERVICE29" => InStreamId::Service29,
"SERVICE30" => InStreamId::Service30,
"SERVICE31" => InStreamId::Service31,
"SERVICE32" => InStreamId::Service32,
"SERVICE33" => InStreamId::Service33,
"SERVICE34" => InStreamId::Service34,
"SERVICE35" => InStreamId::Service35,
"SERVICE36" => InStreamId::Service36,
"SERVICE37" => InStreamId::Service37,
"SERVICE38" => InStreamId::Service38,
"SERVICE39" => InStreamId::Service39,
"SERVICE40" => InStreamId::Service40,
"SERVICE41" => InStreamId::Service41,
"SERVICE42" => InStreamId::Service42,
"SERVICE43" => InStreamId::Service43,
"SERVICE44" => InStreamId::Service44,
"SERVICE45" => InStreamId::Service45,
"SERVICE46" => InStreamId::Service46,
"SERVICE47" => InStreamId::Service47,
"SERVICE48" => InStreamId::Service48,
"SERVICE49" => InStreamId::Service49,
"SERVICE50" => InStreamId::Service50,
"SERVICE51" => InStreamId::Service51,
"SERVICE52" => InStreamId::Service52,
"SERVICE53" => InStreamId::Service53,
"SERVICE54" => InStreamId::Service54,
"SERVICE55" => InStreamId::Service55,
"SERVICE56" => InStreamId::Service56,
"SERVICE57" => InStreamId::Service57,
"SERVICE58" => InStreamId::Service58,
"SERVICE59" => InStreamId::Service59,
"SERVICE60" => InStreamId::Service60,
"SERVICE61" => InStreamId::Service61,
"SERVICE62" => InStreamId::Service62,
"SERVICE63" => InStreamId::Service63,
_ => track_panic!(ErrorKind::InvalidInput, "Unknown instream id: {:?}", s),
})
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum HdcpLevel {
Type0,
None,
}
impl fmt::Display for HdcpLevel {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
HdcpLevel::Type0 => "TYPE-0".fmt(f),
HdcpLevel::None => "NONE".fmt(f),
}
}
}
impl FromStr for HdcpLevel {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
match s {
"TYPE-0" => Ok(HdcpLevel::Type0),
"NONE" => Ok(HdcpLevel::None),
_ => track_panic!(ErrorKind::InvalidInput, "Unknown HDCP level: {:?}", s),
}
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub enum ClosedCaptions {
GroupId(QuotedString),
None,
}
impl fmt::Display for ClosedCaptions {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
ClosedCaptions::GroupId(ref x) => x.fmt(f),
ClosedCaptions::None => "NONE".fmt(f),
}
}
}
impl FromStr for ClosedCaptions {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
if s == "NONE" {
Ok(ClosedCaptions::None)
} else {
Ok(ClosedCaptions::GroupId(track!(s.parse())?))
}
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub enum SessionData {
Value(QuotedString),
Uri(QuotedString),
}