mirrors/gstreamer-rs
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Sample: serde impl

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This commit is contained in:
François Laignel 2018-07-07 13:00:56 +02:00 committed by Sebastian Dröge
parent 5e6f80cc32
commit 4f948e2cce
3 changed files with 329 additions and 6 deletions
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323
gstreamer/src/sample.rs
View file

@ -127,6 +127,75 @@ impl fmt::Debug for SampleRef {
unsafe impl Sync for SampleRef {}
unsafe impl Send for SampleRef {}
#[cfg(feature = "ser_de")]
pub(crate) mod serde {
use serde::de::{Deserialize, Deserializer};
use serde::ser::{Serialize, Serializer, SerializeStruct};
use Buffer;
use BufferList;
use Caps;
use GenericFormattedValue;
use Sample;
use SampleRef;
use Segment;
use Structure;
impl<'a> Serialize for SampleRef {
fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
let mut sample = serializer.serialize_struct("Sample", 5)?;
sample.serialize_field("buffer", &self.get_buffer())?;
sample.serialize_field("buffer_list", &self.get_buffer_list())?;
sample.serialize_field("caps", &self.get_caps())?;
sample.serialize_field("segment", &self.get_segment())?;
sample.serialize_field("info", &self.get_info())?;
sample.end()
}
}
impl<'a> Serialize for Sample {
fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
self.as_ref().serialize(serializer)
}
}
#[derive(Deserialize)]
struct SampleDe {
buffer: Option<Buffer>,
buffer_list: Option<BufferList>,
caps: Option<Caps>,
segment: Option<Segment>,
info: Option<Structure>,
}
impl From<SampleDe> for Sample {
fn from(mut buf_de: SampleDe) -> Self {
if buf_de.buffer.is_some() {
Sample::new::<GenericFormattedValue>(
buf_de.buffer.as_ref(),
buf_de.caps.as_ref(),
buf_de.segment.as_ref(),
buf_de.info.take(),
)
} else {
Sample::with_buffer_list::<GenericFormattedValue>(
buf_de.buffer_list.as_ref(),
buf_de.caps.as_ref(),
buf_de.segment.as_ref(),
buf_de.info.take(),
)
}
}
}
impl<'de> Deserialize<'de> for Sample {
fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
SampleDe::deserialize(deserializer)
.and_then(|sample_de| Ok(sample_de.into()))
}
}
}
#[cfg(test)]
mod tests {
@ -145,4 +214,258 @@ mod tests {
assert!(sample.get_info().is_some());
}
#[cfg(feature = "ser_de")]
#[test]
fn test_serialize() {
extern crate ron;
use Buffer;
use Caps;
use ClockTime;
use Format;
use GenericFormattedValue;
use Sample;
use Segment;
use SegmentFlags;
use Structure;
::init().unwrap();
let mut pretty_config = ron::ser::PrettyConfig::default();
pretty_config.new_line = "".to_string();
let sample = {
let mut buffer = Buffer::from_slice(vec![1, 2, 3, 4]).unwrap();
{
let buffer = buffer.get_mut().unwrap();
buffer.set_pts(1.into());
buffer.set_offset(0);
buffer.set_offset_end(4);
buffer.set_duration(4.into());
}
let caps = Caps::builder("sample/caps")
.field("int", &12)
.field("bool", &true)
.build();
let mut segment = Segment::new();
segment.set_flags(SegmentFlags::RESET | SegmentFlags::SEGMENT);
segment.set_rate(1f64);
segment.set_applied_rate(0.9f64);
segment.set_format(Format::Time);
segment.set_base(GenericFormattedValue::Time(ClockTime::from_nseconds(123)));
segment.set_offset(GenericFormattedValue::Time(ClockTime::from_nseconds(42)));
segment.set_start(GenericFormattedValue::Time(ClockTime::from_nseconds(1024)));
segment.set_stop(GenericFormattedValue::Time(ClockTime::from_nseconds(2048)));
segment.set_time(GenericFormattedValue::Time(ClockTime::from_nseconds(1042)));
segment.set_position(GenericFormattedValue::Time(ClockTime::from_nseconds(256)));
segment.set_duration(GenericFormattedValue::Time(ClockTime::none()));
let info = Structure::builder("sample.info")
.field("f3", &123i32)
.build();
Sample::new::<GenericFormattedValue>(
Some(&buffer),
Some(&caps),
Some(&segment),
Some(info),
)
};
let res = ron::ser::to_string_pretty(&sample, pretty_config.clone());
assert_eq!(
Ok(
concat!(
"(",
" buffer: Some((",
" pts: Some(1),",
" dts: None,",
" duration: Some(4),",
" offset: 0,",
" offset_end: 4,",
" flags: (",
" bits: 0,",
" ),",
" buffer: \"AQIDBA==\",",
" )),",
" buffer_list: None,",
" caps: Some([",
" (\"sample/caps\", [",
" (\"int\", \"i32\", 12),",
" (\"bool\", \"bool\", true),",
" ]),",
" ]),",
" segment: Some((",
" flags: (",
" bits: 9,",
" ),",
" rate: 1,",
" applied_rate: 0.9,",
" format: Time,",
" base: 123,",
" offset: 42,",
" start: 1024,",
" stop: 2048,",
" time: 1042,",
" position: 256,",
" duration: -1,",
" )),",
" info: Some((\"sample.info\", [",
" (\"f3\", \"i32\", 123),",
" ])),",
")"
)
.to_owned()
),
res
);
let sample = {
let mut buffer = Buffer::from_slice(vec![1, 2, 3, 4]).unwrap();
{
let buffer = buffer.get_mut().unwrap();
buffer.set_pts(1.into());
buffer.set_offset(0);
buffer.set_offset_end(4);
buffer.set_duration(4.into());
}
Sample::new::<GenericFormattedValue>(Some(&buffer), None, None, None)
};
// `Sample`'s `Segment` is allocated in GStreamer 1.x, should be fixed in version 2.0
let res = ron::ser::to_string_pretty(&sample, pretty_config);
assert_eq!(
Ok(
concat!(
"(",
" buffer: Some((",
" pts: Some(1),",
" dts: None,",
" duration: Some(4),",
" offset: 0,",
" offset_end: 4,",
" flags: (",
" bits: 0,",
" ),",
" buffer: \"AQIDBA==\",",
" )),",
" buffer_list: None,",
" caps: None,",
" segment: Some((",
" flags: (",
" bits: 0,",
" ),",
" rate: 1,",
" applied_rate: 1,",
" format: Time,",
" base: 0,",
" offset: 0,",
" start: 0,",
" stop: -1,",
" time: 0,",
" position: 0,",
" duration: -1,",
" )),",
" info: None,",
")"
)
.to_owned()
),
res
);
}
#[cfg(feature = "ser_de")]
#[test]
fn test_deserialize() {
extern crate ron;
use Sample;
::init().unwrap();
let buffer_ron = r#"
(
buffer: Some((
pts: Some(1),
dts: None,
duration: Some(4),
offset: 0,
offset_end: 4,
flags: (
bits: 0,
),
buffer: "AQIDBA==",
)),
buffer_list: None,
caps: Some([
("sample/caps", [
("int", "i32", 12),
("bool", "bool", true),
]),
]),
segment: Some((
flags: (
bits: 0,
),
rate: 1,
applied_rate: 0.9,
format: Time,
base: 123,
offset: 42,
start: 1024,
stop: 2048,
time: 1042,
position: 256,
duration: -1,
)),
info: Some(("sample.info", [
("f3", "i32", 123),
])),
)"#;
let sample: Sample = ron::de::from_str(buffer_ron).unwrap();
let buffer = sample.get_buffer().unwrap();
assert_eq!(buffer.get_pts(), 1.into());
assert_eq!(buffer.get_offset_end(), 4);
{
let data = buffer.map_readable().unwrap();
assert_eq!(data.as_slice(), vec![1, 2, 3, 4].as_slice());
}
assert!(sample.get_buffer_list().is_none());
assert!(sample.get_caps().is_some());
assert!(sample.get_segment().is_some());
assert!(sample.get_info().is_some());
let buffer_ron = r#"
(
buffer: None,
buffer_list: Some([
(
pts: Some(1),
dts: None,
duration: Some(4),
offset: 0,
offset_end: 4,
flags: (
bits: 0,
),
buffer: "AQIDBA==",
),
]),
caps: None,
segment: None,
info: None,
)"#;
let sample: Sample = ron::de::from_str(buffer_ron).unwrap();
assert!(sample.get_buffer().is_none());
assert!(sample.get_buffer_list().is_some());
assert!(sample.get_caps().is_none());
// Not true in GStreamer 1.x, should be fixed in version 2.0
//assert!(sample.get_segment().is_none());
assert!(sample.get_info().is_none());
}
}

2
gstreamer/src/structure.rs
View file

@ -668,7 +668,7 @@ pub(crate) mod serde {
use std::fmt;
use DateTime;
//use Sample;
use Sample;
use value::*;
use value::serde::*;

10
gstreamer/src/value.rs
View file

@ -874,7 +874,7 @@ pub(crate) mod serde {
use std::mem;
use DateTime;
//use Sample;
use Sample;
use super::*;
@ -900,7 +900,7 @@ pub(crate) mod serde {
pub(crate) static ref INT_RANGE_I64_OTHER_TYPE_ID: usize =
get_other_type_id::<IntRange<i64>>();
pub(crate) static ref LIST_OTHER_TYPE_ID: usize = get_other_type_id::<List>();
//pub(crate) static ref SAMPLE_OTHER_TYPE_ID: usize = get_other_type_id::<Sample>();
pub(crate) static ref SAMPLE_OTHER_TYPE_ID: usize = get_other_type_id::<Sample>();
}
impl<'a> Serialize for Fraction {
@ -954,8 +954,8 @@ pub(crate) mod serde {
ser_value!($value, "IntRange<i64>", IntRange<i64>, $ser_closure)
} else if *LIST_OTHER_TYPE_ID == type_id {
ser_value!($value, LIST_TYPE_NAME, List, $ser_closure)
/*} else if *SAMPLE_OTHER_TYPE_ID == type_id {
ser_value!($value, "Sample", Sample, $ser_closure)*/
} else if *SAMPLE_OTHER_TYPE_ID == type_id {
ser_value!($value, "Sample", Sample, $ser_closure)
} else {
Err(
ser::Error::custom(
@ -1068,7 +1068,7 @@ pub(crate) mod serde {
"FractionRange" => de_send_value!($type_name, $seq, FractionRange),
"IntRange<i32>" => de_send_value!($type_name, $seq, IntRange<i32>),
"IntRange<i64>" => de_send_value!($type_name, $seq, IntRange<i64>),
//"Sample" => de_send_value!($type_name, $seq, Sample),
"Sample" => de_send_value!($type_name, $seq, Sample),
_ => return Err(
de::Error::custom(
format!(