gstreamer-rs/gstreamer/src/element.rs

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2017-07-07 11:47:28 +00:00
// Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use Element;
use glib;
use glib::IsA;
use glib::translate::{from_glib, from_glib_full, from_glib_none, FromGlib,
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FromGlibPtrContainer, ToGlib, ToGlibPtr};
#[cfg(any(feature = "v1_10", feature = "dox"))]
use glib::translate::FromGlibPtrBorrow;
#[cfg(any(feature = "v1_10", feature = "dox"))]
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use glib::object::Downcast;
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use QueryRef;
use Event;
use Pad;
use PadTemplate;
use Format;
use GenericFormattedValue;
use FormattedValue;
use SpecificFormattedValue;
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use miniobject::MiniObject;
use std::ffi::CStr;
use std::mem;
use libc;
use ffi;
#[cfg(any(feature = "v1_10", feature = "dox"))]
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use glib_ffi;
use gobject_ffi;
impl Element {
pub fn link_many<E: IsA<Element>>(elements: &[&E]) -> Result<(), glib::BoolError> {
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skip_assert_initialized!();
for (e1, e2) in elements.iter().zip(elements.iter().skip(1)) {
unsafe {
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let ret: bool = from_glib(ffi::gst_element_link(
e1.to_glib_none().0,
e2.to_glib_none().0,
));
if !ret {
return Err(glib::BoolError("Failed to link elements"));
}
}
}
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Ok(())
}
pub fn unlink_many<E: IsA<Element>>(elements: &[&E]) {
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skip_assert_initialized!();
for (e1, e2) in elements.iter().zip(elements.iter().skip(1)) {
unsafe {
ffi::gst_element_unlink(e1.to_glib_none().0, e2.to_glib_none().0);
}
}
}
}
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#[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
pub enum ElementMessageType {
Error,
Warning,
Info,
}
#[derive(Debug, PartialEq, Eq)]
pub struct NotifyWatchId(libc::c_ulong);
impl ToGlib for NotifyWatchId {
type GlibType = libc::c_ulong;
fn to_glib(&self) -> libc::c_ulong {
self.0
}
}
impl FromGlib<libc::c_ulong> for NotifyWatchId {
fn from_glib(val: libc::c_ulong) -> NotifyWatchId {
skip_assert_initialized!();
assert_ne!(val, 0);
NotifyWatchId(val)
}
}
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pub trait ElementExtManual {
fn query(&self, query: &mut QueryRef) -> bool;
fn send_event(&self, event: Event) -> bool;
fn get_metadata<'a>(&self, key: &str) -> Option<&'a str>;
fn get_pad_template(&self, name: &str) -> Option<PadTemplate>;
fn get_pad_template_list(&self) -> Vec<PadTemplate>;
fn message_full<T: ::MessageErrorDomain>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
);
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn message_full_with_details<T: ::MessageErrorDomain>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
structure: ::Structure,
);
fn post_error_message(&self, msg: &::ErrorMessage);
fn iterate_pads(&self) -> ::Iterator<Pad>;
fn iterate_sink_pads(&self) -> ::Iterator<Pad>;
fn iterate_src_pads(&self) -> ::Iterator<Pad>;
fn get_pads(&self) -> Vec<Pad>;
fn get_sink_pads(&self) -> Vec<Pad>;
fn get_src_pads(&self) -> Vec<Pad>;
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn add_property_deep_notify_watch<'a, P: Into<Option<&'a str>>>(
&self,
property_name: P,
include_value: bool,
) -> NotifyWatchId;
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn add_property_notify_watch<'a, P: Into<Option<&'a str>>>(
&self,
property_name: P,
include_value: bool,
) -> NotifyWatchId;
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn remove_property_notify_watch(&self, watch_id: NotifyWatchId);
fn query_convert<V: Into<GenericFormattedValue>, U: SpecificFormattedValue>(
&self,
src_val: V,
) -> Option<U>;
fn query_convert_generic<V: Into<GenericFormattedValue>>(
&self,
src_val: V,
dest_format: Format,
) -> Option<GenericFormattedValue>;
fn query_duration<T: SpecificFormattedValue>(&self) -> Option<T>;
fn query_duration_generic(&self, format: Format) -> Option<GenericFormattedValue>;
fn query_position<T: SpecificFormattedValue>(&self) -> Option<T>;
fn query_position_generic(&self, format: Format) -> Option<GenericFormattedValue>;
fn seek<V: Into<GenericFormattedValue>>(
&self,
rate: f64,
flags: ::SeekFlags,
start_type: ::SeekType,
start: V,
stop_type: ::SeekType,
stop: V,
) -> Result<(), glib::error::BoolError>;
fn seek_simple<V: Into<GenericFormattedValue>>(
&self,
seek_flags: ::SeekFlags,
seek_pos: V,
) -> Result<(), glib::error::BoolError>;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
fn call_async<F>(&self, func: F)
where
F: FnOnce(&Self) + Send + 'static;
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}
impl<O: IsA<Element>> ElementExtManual for O {
fn query(&self, query: &mut QueryRef) -> bool {
unsafe {
from_glib(ffi::gst_element_query(
self.to_glib_none().0,
query.as_mut_ptr(),
))
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}
}
fn send_event(&self, event: Event) -> bool {
unsafe {
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from_glib(ffi::gst_element_send_event(
self.to_glib_none().0,
event.into_ptr(),
))
}
}
fn get_metadata<'a>(&self, key: &str) -> Option<&'a str> {
unsafe {
let klass = (*(self.to_glib_none().0 as *mut gobject_ffi::GTypeInstance)).g_class
as *mut ffi::GstElementClass;
let ptr = ffi::gst_element_class_get_metadata(klass, key.to_glib_none().0);
if ptr.is_null() {
None
} else {
Some(CStr::from_ptr(ptr).to_str().unwrap())
}
}
}
fn get_pad_template(&self, name: &str) -> Option<PadTemplate> {
unsafe {
let klass = (*(self.to_glib_none().0 as *mut gobject_ffi::GTypeInstance)).g_class
as *mut ffi::GstElementClass;
from_glib_none(ffi::gst_element_class_get_pad_template(
klass,
name.to_glib_none().0,
))
}
}
fn get_pad_template_list(&self) -> Vec<PadTemplate> {
unsafe {
let klass = (*(self.to_glib_none().0 as *mut gobject_ffi::GTypeInstance)).g_class
as *mut ffi::GstElementClass;
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FromGlibPtrContainer::from_glib_none(ffi::gst_element_class_get_pad_template_list(
klass,
))
}
}
fn message_full<T: ::MessageErrorDomain>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
) {
unsafe {
let type_ = match type_ {
ElementMessageType::Error => ffi::GST_MESSAGE_ERROR,
ElementMessageType::Warning => ffi::GST_MESSAGE_WARNING,
ElementMessageType::Info => ffi::GST_MESSAGE_INFO,
};
ffi::gst_element_message_full(
self.to_glib_none().0,
type_,
T::domain(),
code.code(),
message.to_glib_full(),
debug.to_glib_full(),
file.to_glib_none().0,
function.to_glib_none().0,
line as i32,
);
}
}
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn message_full_with_details<T: ::MessageErrorDomain>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
structure: ::Structure,
) {
unsafe {
let type_ = match type_ {
ElementMessageType::Error => ffi::GST_MESSAGE_ERROR,
ElementMessageType::Warning => ffi::GST_MESSAGE_WARNING,
ElementMessageType::Info => ffi::GST_MESSAGE_INFO,
};
ffi::gst_element_message_full_with_details(
self.to_glib_none().0,
type_,
T::domain(),
code.code(),
message.to_glib_full(),
debug.to_glib_full(),
file.to_glib_none().0,
function.to_glib_none().0,
line as i32,
structure.into_ptr(),
);
}
}
fn post_error_message(&self, msg: &::ErrorMessage) {
let ::ErrorMessage {
error_domain,
error_code,
ref message,
ref debug,
filename,
function,
line,
} = *msg;
unsafe {
ffi::gst_element_message_full(
self.to_glib_none().0,
ffi::GST_MESSAGE_ERROR,
error_domain,
error_code,
message.to_glib_full(),
debug.to_glib_full(),
filename.to_glib_none().0,
function.to_glib_none().0,
line as i32,
);
}
}
fn iterate_pads(&self) -> ::Iterator<Pad> {
unsafe { from_glib_full(ffi::gst_element_iterate_pads(self.to_glib_none().0)) }
}
fn iterate_sink_pads(&self) -> ::Iterator<Pad> {
unsafe { from_glib_full(ffi::gst_element_iterate_sink_pads(self.to_glib_none().0)) }
}
fn iterate_src_pads(&self) -> ::Iterator<Pad> {
unsafe { from_glib_full(ffi::gst_element_iterate_src_pads(self.to_glib_none().0)) }
}
fn get_pads(&self) -> Vec<Pad> {
unsafe {
let stash = self.to_glib_none();
let elt: &ffi::GstElement = &*stash.0;
::utils::MutexGuard::lock(&elt.object.lock);
FromGlibPtrContainer::from_glib_none(elt.pads)
}
}
fn get_sink_pads(&self) -> Vec<Pad> {
unsafe {
let stash = self.to_glib_none();
let elt: &ffi::GstElement = &*stash.0;
::utils::MutexGuard::lock(&elt.object.lock);
FromGlibPtrContainer::from_glib_none(elt.sinkpads)
}
}
fn get_src_pads(&self) -> Vec<Pad> {
unsafe {
let stash = self.to_glib_none();
let elt: &ffi::GstElement = &*stash.0;
::utils::MutexGuard::lock(&elt.object.lock);
FromGlibPtrContainer::from_glib_none(elt.srcpads)
}
}
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn add_property_deep_notify_watch<'a, P: Into<Option<&'a str>>>(
&self,
property_name: P,
include_value: bool,
) -> NotifyWatchId {
let property_name = property_name.into();
let property_name = property_name.to_glib_none();
unsafe {
from_glib(ffi::gst_element_add_property_deep_notify_watch(
self.to_glib_none().0,
property_name.0,
include_value.to_glib(),
))
}
}
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn add_property_notify_watch<'a, P: Into<Option<&'a str>>>(
&self,
property_name: P,
include_value: bool,
) -> NotifyWatchId {
let property_name = property_name.into();
let property_name = property_name.to_glib_none();
unsafe {
from_glib(ffi::gst_element_add_property_notify_watch(
self.to_glib_none().0,
property_name.0,
include_value.to_glib(),
))
}
}
#[cfg(any(feature = "v1_10", feature = "dox"))]
fn remove_property_notify_watch(&self, watch_id: NotifyWatchId) {
unsafe {
ffi::gst_element_remove_property_notify_watch(self.to_glib_none().0, watch_id.0);
}
}
fn query_convert<V: Into<GenericFormattedValue>, U: SpecificFormattedValue>(
&self,
src_val: V,
) -> Option<U> {
let src_val = src_val.into();
unsafe {
let mut dest_val = mem::uninitialized();
let ret = from_glib(ffi::gst_element_query_convert(
self.to_glib_none().0,
src_val.get_format().to_glib(),
src_val.to_raw_value(),
U::get_default_format().to_glib(),
&mut dest_val,
));
if ret {
Some(U::from_raw(U::get_default_format(), dest_val))
} else {
None
}
}
}
fn query_convert_generic<V: Into<GenericFormattedValue>>(
&self,
src_val: V,
dest_format: Format,
) -> Option<GenericFormattedValue> {
let src_val = src_val.into();
unsafe {
let mut dest_val = mem::uninitialized();
let ret = from_glib(ffi::gst_element_query_convert(
self.to_glib_none().0,
src_val.get_format().to_glib(),
src_val.get_value(),
dest_format.to_glib(),
&mut dest_val,
));
if ret {
Some(GenericFormattedValue::new(dest_format, dest_val))
} else {
None
}
}
}
fn query_duration<T: SpecificFormattedValue>(&self) -> Option<T> {
unsafe {
let mut duration = mem::uninitialized();
let ret = from_glib(ffi::gst_element_query_duration(
self.to_glib_none().0,
T::get_default_format().to_glib(),
&mut duration,
));
if ret {
Some(T::from_raw(T::get_default_format(), duration))
} else {
None
}
}
}
fn query_duration_generic(&self, format: Format) -> Option<GenericFormattedValue> {
unsafe {
let mut duration = mem::uninitialized();
let ret = from_glib(ffi::gst_element_query_duration(
self.to_glib_none().0,
format.to_glib(),
&mut duration,
));
if ret {
Some(GenericFormattedValue::new(format, duration))
} else {
None
}
}
}
fn query_position<T: SpecificFormattedValue>(&self) -> Option<T> {
unsafe {
let mut cur = mem::uninitialized();
let ret = from_glib(ffi::gst_element_query_position(
self.to_glib_none().0,
T::get_default_format().to_glib(),
&mut cur,
));
if ret {
Some(T::from_raw(T::get_default_format(), cur))
} else {
None
}
}
}
fn query_position_generic(&self, format: Format) -> Option<GenericFormattedValue> {
unsafe {
let mut cur = mem::uninitialized();
let ret = from_glib(ffi::gst_element_query_position(
self.to_glib_none().0,
format.to_glib(),
&mut cur,
));
if ret {
Some(GenericFormattedValue::new(format, cur))
} else {
None
}
}
}
fn seek<V: Into<GenericFormattedValue>>(
&self,
rate: f64,
flags: ::SeekFlags,
start_type: ::SeekType,
start: V,
stop_type: ::SeekType,
stop: V,
) -> Result<(), glib::error::BoolError> {
let start = start.into();
let stop = stop.into();
assert_eq!(stop.get_format(), start.get_format());
unsafe {
glib::error::BoolError::from_glib(
ffi::gst_element_seek(
self.to_glib_none().0,
rate,
start.get_format().to_glib(),
flags.to_glib(),
start_type.to_glib(),
start.get_value(),
stop_type.to_glib(),
stop.get_value(),
),
"Failed to seek",
)
}
}
fn seek_simple<V: Into<GenericFormattedValue>>(
&self,
seek_flags: ::SeekFlags,
seek_pos: V,
) -> Result<(), glib::error::BoolError> {
let seek_pos = seek_pos.into();
unsafe {
glib::error::BoolError::from_glib(
ffi::gst_element_seek_simple(
self.to_glib_none().0,
seek_pos.get_format().to_glib(),
seek_flags.to_glib(),
seek_pos.get_value(),
),
"Failed to seek",
)
}
}
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#[cfg(any(feature = "v1_10", feature = "dox"))]
fn call_async<F>(&self, func: F)
where
F: FnOnce(&Self) + Send + 'static,
{
let user_data: Box<Option<Box<F>>> = Box::new(Some(Box::new(func)));
unsafe extern "C" fn trampoline<O: IsA<Element>, F: FnOnce(&O) + Send + 'static>(
element: *mut ffi::GstElement,
user_data: glib_ffi::gpointer,
) {
callback_guard!();
let user_data: &mut Option<Box<F>> = &mut *(user_data as *mut _);
let callback = user_data.take().unwrap();
callback(&Element::from_glib_borrow(element).downcast_unchecked());
}
unsafe extern "C" fn free_user_data<O: IsA<Element>, F: FnOnce(&O) + Send + 'static>(
user_data: glib_ffi::gpointer,
) {
let _: Box<Option<Box<F>>> = Box::from_raw(user_data as *mut _);
}
let trampoline = trampoline::<Self, F>;
let free_user_data = free_user_data::<Self, F>;
unsafe {
ffi::gst_element_call_async(
self.to_glib_none().0,
Some(trampoline),
Box::into_raw(user_data) as *mut _,
Some(free_user_data),
);
}
}
}
lazy_static!{
pub static ref ELEMENT_METADATA_AUTHOR: &'static str = unsafe { CStr::from_ptr(ffi::GST_ELEMENT_METADATA_AUTHOR).to_str().unwrap() };
pub static ref ELEMENT_METADATA_DESCRIPTION: &'static str = unsafe { CStr::from_ptr(ffi::GST_ELEMENT_METADATA_DESCRIPTION).to_str().unwrap() };
pub static ref ELEMENT_METADATA_DOC_URI: &'static str = unsafe { CStr::from_ptr(ffi::GST_ELEMENT_METADATA_DOC_URI).to_str().unwrap() };
pub static ref ELEMENT_METADATA_ICON_NAME: &'static str = unsafe { CStr::from_ptr(ffi::GST_ELEMENT_METADATA_ICON_NAME).to_str().unwrap() };
pub static ref ELEMENT_METADATA_KLASS: &'static str = unsafe { CStr::from_ptr(ffi::GST_ELEMENT_METADATA_KLASS).to_str().unwrap() };
pub static ref ELEMENT_METADATA_LONGNAME: &'static str = unsafe { CStr::from_ptr(ffi::GST_ELEMENT_METADATA_LONGNAME).to_str().unwrap() };
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}
#[macro_export]
macro_rules! gst_element_error(
($obj:expr, $err:expr, ($msg:expr), [$debug:expr]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Error,
$err,
Some($msg),
Some($debug),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($msg:expr)) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Error,
$err,
Some($msg),
None,
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, [$debug:expr]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Error,
$err,
None,
Some($debug),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Error,
$err,
Some(&format!($($msg)*)),
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($($msg:tt)*)) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Error,
$err,
Some(&format!($($msg)*)),
None,
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, [$($debug:tt)*]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Error,
$err,
None,
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($msg:expr), [$debug:expr], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Error,
$err,
Some($msg),
Some($debug),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($msg:expr), details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Error,
$err,
Some($msg),
None,
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, [$debug:expr], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Error,
$err,
None,
Some($debug),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Error,
$err,
Some(&format!($($msg)*)),
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Error,
$err,
Some(&format!($($msg)*)),
None,
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, [$($debug:tt)*], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Error,
$err,
None,
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
$details,
);
}};
);
#[macro_export]
macro_rules! gst_element_warning(
($obj:expr, $err:expr, ($msg:expr), [$debug:expr]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Warning,
$err,
Some($msg),
Some($debug),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($msg:expr)) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Warning,
$err,
Some($msg),
None,
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, [$debug:expr]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Warning,
$err,
None,
Some($debug),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Warning,
$err,
Some(&format!($($msg)*)),
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($($msg:tt)*)) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Warning,
$err,
Some(&format!($($msg)*)),
None,
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, [$($debug:tt)*]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Warning,
$err,
None,
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($msg:expr), [$debug:expr], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Warning,
$err,
Some($msg),
Some($debug),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($msg:expr), details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Warning,
$err,
Some($msg),
None,
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, [$debug:expr], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Warning,
$err,
None,
Some($debug),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Warning,
$err,
Some(&format!($($msg)*)),
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Warning,
$err,
Some(&format!($($msg)*)),
None,
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, [$($debug:tt)*], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Warning,
$err,
None,
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
$details,
);
}};
);
#[macro_export]
macro_rules! gst_element_info(
($obj:expr, $err:expr, ($msg:expr), [$debug:expr]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Info,
$err,
Some($msg),
Some($debug),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($msg:expr)) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Info,
$err,
Some($msg),
None,
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, [$debug:expr]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Info,
$err,
None,
Some($debug),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Info,
$err,
Some(&format!($($msg)*)),
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($($msg:tt)*)) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Info,
$err,
Some(&format!($($msg)*)),
None,
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, [$($debug:tt)*]) => { {
use $crate::ElementExtManual;
$obj.message_full(
$crate::ElementMessageType::Info,
$err,
None,
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
);
}};
($obj:expr, $err:expr, ($msg:expr), [$debug:expr], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Info,
$err,
Some($msg),
Some($debug),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($msg:expr), details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Info,
$err,
Some($msg),
None,
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, [$debug:expr], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Info,
$err,
None,
Some($debug),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Info,
$err,
Some(&format!($($msg)*)),
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, ($($msg:tt)*), details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Info,
$err,
Some(&format!($($msg)*)),
None,
file!(),
module_path!(),
line!(),
$details,
);
}};
($obj:expr, $err:expr, [$($debug:tt)*], details: $details:expr) => { {
use $crate::ElementExtManual;
$obj.message_full_with_details(
$crate::ElementMessageType::Info,
$err,
None,
Some(&format!($($debug)*)),
file!(),
module_path!(),
line!(),
$details,
);
}};
);
#[cfg(test)]
mod tests {
use super::*;
use prelude::*;
2018-03-14 13:42:17 +00:00
use std::sync::mpsc::channel;
#[test]
fn test_get_pads() {
::init().unwrap();
let identity = ::ElementFactory::make("identity", None).unwrap();
let mut pad_names = identity
.get_pads()
.iter()
.map(|p| p.get_name())
.collect::<Vec<String>>();
pad_names.sort();
assert_eq!(pad_names, vec![String::from("sink"), String::from("src")]);
let mut pad_names = identity
.get_sink_pads()
.iter()
.map(|p| p.get_name())
.collect::<Vec<String>>();
pad_names.sort();
assert_eq!(pad_names, vec![String::from("sink")]);
let mut pad_names = identity
.get_src_pads()
.iter()
.map(|p| p.get_name())
.collect::<Vec<String>>();
pad_names.sort();
assert_eq!(pad_names, vec![String::from("src")]);
}
2018-03-14 13:42:17 +00:00
#[test]
fn test_call_async() {
::init().unwrap();
let identity = ::ElementFactory::make("identity", None).unwrap();
let (sender, receiver) = channel();
identity.call_async(move |_| {
sender.send(()).unwrap();
});
assert_eq!(receiver.recv(), Ok(()));
}
}