forked from mirrors/gstreamer-rs
Pad: allow building a Pad with an automatically generated name
For convenience, the `Pad` builder checks a name is provided when a wildcard- named template is used. For `GhostPad`s, the builder tries to assign the name of the target `Pad` making sure the provided `name` conforms to the `PadTemplate`. This commit adds a function to optionally keep the `gst::Object` automatically generated unique `Pad` name (such as `ghostpad4`) and reorganises name handling so it is processed when `build` is invoked. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1428>
This commit is contained in:
parent
e117010bc0
commit
953e3747f2
2 changed files with 239 additions and 135 deletions
|
@ -56,6 +56,8 @@ impl GhostPad {
|
|||
// rustdoc-stripper-ignore-next
|
||||
/// Creates a new [`GhostPad`] with an automatically generated name.
|
||||
///
|
||||
/// The [`Pad`] will be assigned the usual `gst::Object` generated unique name.
|
||||
///
|
||||
/// Use [`GhostPad::builder_from_template()`] to get a [`PadBuilder`](crate::PadBuilder)
|
||||
/// and define options.
|
||||
#[doc(alias = "gst_ghost_pad_new_no_target")]
|
||||
|
@ -65,10 +67,7 @@ impl GhostPad {
|
|||
}
|
||||
|
||||
// rustdoc-stripper-ignore-next
|
||||
/// Creates a [`PadBuilder`](crate::PadBuilder) for a [`PadBuilder`] with an automatically generated name.
|
||||
///
|
||||
/// Use [`PadBuilder::name`](crate::PadBuilder::name) or [`PadBuilder::maybe_name`](crate::PadBuilder::maybe_name)
|
||||
/// to specify a different name.
|
||||
/// Creates a [`PadBuilder`](crate::PadBuilder) with the specified [`PadDirection`](crate::PadDirection).
|
||||
#[doc(alias = "gst_ghost_pad_new_no_target")]
|
||||
pub fn builder(direction: crate::PadDirection) -> PadBuilder<Self> {
|
||||
skip_assert_initialized!();
|
||||
|
@ -82,12 +81,15 @@ impl GhostPad {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `GhostPad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`GhostPad::builder_from_template()`] to get a [`PadBuilder`](crate::PadBuilder)
|
||||
/// and define options.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if the `name_template` is a wildcard-name.
|
||||
///
|
||||
/// Use [`GhostPad::builder_from_template()`] to get a [`PadBuilder`](crate::PadBuilder)
|
||||
/// and define options.
|
||||
#[doc(alias = "gst_ghost_pad_new_no_target_from_static_template")]
|
||||
pub fn from_static_template(templ: &StaticPadTemplate) -> Self {
|
||||
skip_assert_initialized!();
|
||||
|
@ -103,6 +105,9 @@ impl GhostPad {
|
|||
///
|
||||
/// Use [`PadBuilder::name`](crate::PadBuilder::name) or [`PadBuilder::maybe_name`](crate::PadBuilder::maybe_name)
|
||||
/// to specify a different name.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_ghost_pad_new_no_target_from_static_template")]
|
||||
pub fn builder_from_static_template(templ: &StaticPadTemplate) -> PadBuilder<Self> {
|
||||
skip_assert_initialized!();
|
||||
|
@ -116,12 +121,15 @@ impl GhostPad {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `GhostPad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`GhostPad::builder_from_template()`] to get a [`PadBuilder`](crate::PadBuilder)
|
||||
/// and define options.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if the `name_template` is a wildcard-name.
|
||||
///
|
||||
/// Use [`GhostPad::builder_from_template()`] to get a [`PadBuilder`](crate::PadBuilder)
|
||||
/// and define options.
|
||||
#[doc(alias = "gst_ghost_pad_new_no_target_from_template")]
|
||||
pub fn from_template(templ: &crate::PadTemplate) -> Self {
|
||||
skip_assert_initialized!();
|
||||
|
@ -137,6 +145,9 @@ impl GhostPad {
|
|||
///
|
||||
/// Use [`PadBuilder::name`](crate::PadBuilder::name) or [`PadBuilder::maybe_name`](crate::PadBuilder::maybe_name)
|
||||
/// to specify a different name.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_ghost_pad_new_no_target_from_template")]
|
||||
pub fn builder_from_template(templ: &crate::PadTemplate) -> PadBuilder<Self> {
|
||||
skip_assert_initialized!();
|
||||
|
@ -150,6 +161,9 @@ impl GhostPad {
|
|||
///
|
||||
/// Use [`GhostPad::builder_with_target()`] to get a [`PadBuilder`](crate::PadBuilder)
|
||||
/// and define options.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_ghost_pad_new")]
|
||||
pub fn with_target<P: IsA<Pad> + IsA<crate::Object>>(
|
||||
target: &P,
|
||||
|
@ -165,13 +179,15 @@ impl GhostPad {
|
|||
///
|
||||
/// Use [`PadBuilder::name`](crate::PadBuilder::name) or [`PadBuilder::maybe_name`](crate::PadBuilder::maybe_name)
|
||||
/// to specify a different name.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_ghost_pad_new_no_target_from_template")]
|
||||
pub fn builder_with_target<P: IsA<Pad> + IsA<crate::Object>>(
|
||||
target: &P,
|
||||
) -> Result<PadBuilder<Self>, glib::BoolError> {
|
||||
skip_assert_initialized!();
|
||||
let mut builder = Self::builder(target.direction());
|
||||
builder.needs_specific_name = true;
|
||||
let builder = Self::builder(target.direction());
|
||||
builder.with_target(target)
|
||||
}
|
||||
|
||||
|
@ -186,6 +202,9 @@ impl GhostPad {
|
|||
/// If the `name_template` is a wildcard-name, then the `target` `name` is used,
|
||||
/// if it is compatible. Otherwise, a specific name must be provided using
|
||||
/// [`PadBuilder::name`](crate::PadBuilder::name) or [`PadBuilder::maybe_name`](crate::PadBuilder::maybe_name).
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_ghost_pad_new_from_template")]
|
||||
pub fn from_template_with_target<P: IsA<Pad> + IsA<crate::Object>>(
|
||||
templ: &crate::PadTemplate,
|
||||
|
@ -206,6 +225,9 @@ impl GhostPad {
|
|||
/// If the `name_template` is a wildcard-name, then the `target` `name` is used,
|
||||
/// if it is compatible. Otherwise, a specific name must be provided using
|
||||
/// [`PadBuilder::name`](crate::PadBuilder::name) or [`PadBuilder::maybe_name`](crate::PadBuilder::maybe_name).
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_ghost_pad_new_from_template")]
|
||||
pub fn builder_from_template_with_target<P: IsA<Pad> + IsA<crate::Object>>(
|
||||
templ: &crate::PadTemplate,
|
||||
|
@ -689,6 +711,9 @@ impl<T: IsA<GhostPad> + IsA<Pad>> PadBuilder<T> {
|
|||
/// If the `name_template` is a wildcard-name, then the `target` `name` is used,
|
||||
/// if it is compatible. Otherwise, a specific name must be provided using
|
||||
/// [`PadBuilder::name`](crate::PadBuilder::name) or [`PadBuilder::maybe_name`](crate::PadBuilder::maybe_name).
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
pub fn with_target<P: IsA<Pad> + IsA<crate::Object>>(
|
||||
mut self,
|
||||
target: &P,
|
||||
|
@ -696,92 +721,8 @@ impl<T: IsA<GhostPad> + IsA<Pad>> PadBuilder<T> {
|
|||
assert_eq!(self.pad.direction(), target.direction());
|
||||
|
||||
self.pad.set_target(Some(target))?;
|
||||
|
||||
if self.needs_specific_name {
|
||||
let mut can_assign_target_name = true;
|
||||
|
||||
if let Some(pad_template) = self.pad.pad_template() {
|
||||
if pad_template.presence() == crate::PadPresence::Request {
|
||||
// Check if the target name is compatible with the name template.
|
||||
use crate::CAT_RUST;
|
||||
|
||||
let target_name = target.name();
|
||||
let mut target_parts = target_name.split('_');
|
||||
for template_part in pad_template.name_template().split('_') {
|
||||
let Some(target_part) = target_parts.next() else {
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using target Pad name '{target_name}': not enough parts compared to template '{}'",
|
||||
pad_template.name_template(),
|
||||
);
|
||||
can_assign_target_name = false;
|
||||
break;
|
||||
};
|
||||
|
||||
if let Some(conv_spec_start) = template_part.find('%') {
|
||||
if conv_spec_start > 0
|
||||
&& !target_part.starts_with(&template_part[..conv_spec_start])
|
||||
{
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using target Pad name '{target_name}': mismatch template '{}' prefix",
|
||||
pad_template.name_template(),
|
||||
);
|
||||
can_assign_target_name = false;
|
||||
break;
|
||||
}
|
||||
|
||||
let conv_spec_pos = conv_spec_start + 1;
|
||||
match template_part.get(conv_spec_pos..=conv_spec_pos) {
|
||||
Some("s") => {
|
||||
// *There can be only one* %s
|
||||
break;
|
||||
}
|
||||
Some("u") => {
|
||||
if target_part
|
||||
.get(conv_spec_start..)
|
||||
.map_or(true, |s| s.parse::<u32>().is_err())
|
||||
{
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using target Pad name '{target_name}': can't parse '%u' from '{target_part}' (template '{}')",
|
||||
pad_template.name_template(),
|
||||
);
|
||||
|
||||
can_assign_target_name = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
Some("d") => {
|
||||
if target_part
|
||||
.get(conv_spec_start..)
|
||||
.map_or(true, |s| s.parse::<i32>().is_err())
|
||||
{
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using target Pad name '{target_name}': can't parse '%i' from '{target_part}' (template '{}')",
|
||||
pad_template.name_template(),
|
||||
);
|
||||
|
||||
can_assign_target_name = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
other => unreachable!("Unexpected conversion specifier {other:?}"),
|
||||
}
|
||||
} else if target_part != template_part {
|
||||
can_assign_target_name = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if can_assign_target_name {
|
||||
self.pad.set_property("name", target.name());
|
||||
self.needs_specific_name = false;
|
||||
}
|
||||
}
|
||||
self.name =
|
||||
crate::pad::PadBuilderName::CandidateForWildcardTemplate(target.name().to_string());
|
||||
|
||||
Ok(self)
|
||||
}
|
||||
|
@ -911,6 +852,13 @@ mod tests {
|
|||
.name("ghost_test")
|
||||
.build();
|
||||
assert_eq!(ghost_pad.name(), "ghost_test");
|
||||
|
||||
let target = crate::Pad::from_template(&templ);
|
||||
let ghost_pad = GhostPad::builder_with_target(&target)
|
||||
.unwrap()
|
||||
.generated_name()
|
||||
.build();
|
||||
assert!(ghost_pad.name().starts_with("ghostpad"));
|
||||
}
|
||||
|
||||
#[test]
|
||||
|
@ -952,6 +900,13 @@ mod tests {
|
|||
.build();
|
||||
assert_eq!(ghost_pad.name(), "my-sink");
|
||||
|
||||
let target = crate::Pad::from_template(&sink_templ);
|
||||
let ghost_pad = GhostPad::builder_from_template_with_target(&ghost_templ, &target)
|
||||
.unwrap()
|
||||
.generated_name()
|
||||
.build();
|
||||
assert!(ghost_pad.name().starts_with("ghostpad"));
|
||||
|
||||
// # Request template %u
|
||||
let wildcard_u_templ = crate::PadTemplate::new(
|
||||
"sink_%u",
|
||||
|
@ -983,6 +938,13 @@ mod tests {
|
|||
.build();
|
||||
assert_eq!(ghost_pad.name(), "sink_0");
|
||||
|
||||
let target = crate::Pad::from_template(&sink_0_templ);
|
||||
let ghost_pad = GhostPad::builder_from_template_with_target(&wildcard_u_templ, &target)
|
||||
.unwrap()
|
||||
.generated_name()
|
||||
.build();
|
||||
assert!(ghost_pad.name().starts_with("ghostpad"));
|
||||
|
||||
// # Request template %d_%u
|
||||
let wildcard_u_templ = crate::PadTemplate::new(
|
||||
"sink_%d_%u",
|
||||
|
|
|
@ -1428,7 +1428,7 @@ impl Pad {
|
|||
// rustdoc-stripper-ignore-next
|
||||
/// Creates a new [`Pad`] with the specified [`PadDirection`](crate::PadDirection).
|
||||
///
|
||||
/// An automatically generated name will be assigned.
|
||||
/// The [`Pad`] will be assigned the usual `gst::Object` generated unique name.
|
||||
///
|
||||
/// Use [`Pad::builder()`] to get a [`PadBuilder`] and define options.
|
||||
#[doc(alias = "gst_pad_new")]
|
||||
|
@ -1439,8 +1439,6 @@ impl Pad {
|
|||
|
||||
// rustdoc-stripper-ignore-next
|
||||
/// Creates a [`PadBuilder`] with the specified [`PadDirection`](crate::PadDirection).
|
||||
///
|
||||
/// An automatically generated name will be assigned.
|
||||
#[doc(alias = "gst_pad_new")]
|
||||
pub fn builder(direction: crate::PadDirection) -> PadBuilder<Self> {
|
||||
skip_assert_initialized!();
|
||||
|
@ -1454,11 +1452,14 @@ impl Pad {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `Pad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`Pad::builder_from_static_template()`] to get a [`PadBuilder`] and define options.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if the `name_template` is a wildcard-name.
|
||||
///
|
||||
/// Use [`Pad::builder_from_static_template()`] to get a [`PadBuilder`] and define options.
|
||||
#[doc(alias = "gst_pad_new_from_static_template")]
|
||||
pub fn from_static_template(templ: &StaticPadTemplate) -> Self {
|
||||
skip_assert_initialized!();
|
||||
|
@ -1472,7 +1473,8 @@ impl Pad {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `Pad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`PadBuilder::name`] or [`PadBuilder::maybe_name`] to specify a different name.
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_pad_new_from_static_template")]
|
||||
pub fn builder_from_static_template(templ: &StaticPadTemplate) -> PadBuilder<Self> {
|
||||
skip_assert_initialized!();
|
||||
|
@ -1486,11 +1488,11 @@ impl Pad {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `Pad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`Pad::builder_from_template()`] to get a [`PadBuilder`] and define options.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// Panics if the `name_template` is a wildcard-name.
|
||||
///
|
||||
/// Use [`Pad::builder_from_template()`] to get a [`PadBuilder`] and define options.
|
||||
#[doc(alias = "gst_pad_new_from_template")]
|
||||
pub fn from_template(templ: &crate::PadTemplate) -> Self {
|
||||
skip_assert_initialized!();
|
||||
|
@ -1504,7 +1506,8 @@ impl Pad {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `Pad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`PadBuilder::name`] or [`PadBuilder::maybe_name`] to specify a different name.
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[doc(alias = "gst_pad_new_from_template")]
|
||||
pub fn builder_from_template(templ: &crate::PadTemplate) -> PadBuilder<Self> {
|
||||
skip_assert_initialized!();
|
||||
|
@ -1558,18 +1561,22 @@ impl Pad {
|
|||
}
|
||||
}
|
||||
|
||||
pub(crate) enum PadBuilderName {
|
||||
Undefined,
|
||||
KeepGenerated,
|
||||
UserDefined(String),
|
||||
CandidateForWildcardTemplate(String),
|
||||
}
|
||||
|
||||
#[must_use = "The builder must be built to be used"]
|
||||
pub struct PadBuilder<T> {
|
||||
pub(crate) pad: T,
|
||||
pub(crate) needs_specific_name: bool,
|
||||
pub(crate) name: PadBuilderName,
|
||||
}
|
||||
|
||||
impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
||||
// rustdoc-stripper-ignore-next
|
||||
/// Creates a `PadBuilder` with the specified [`PadDirection`](crate::PadDirection).
|
||||
///
|
||||
/// An automatically generated name will be assigned. Use [`PadBuilder::name`] or
|
||||
/// [`PadBuilder::maybe_name`] to define a specific name.
|
||||
pub fn new(direction: crate::PadDirection) -> Self {
|
||||
assert_initialized_main_thread!();
|
||||
|
||||
|
@ -1588,7 +1595,7 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
|||
|
||||
PadBuilder {
|
||||
pad,
|
||||
needs_specific_name: false,
|
||||
name: PadBuilderName::Undefined,
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -1599,7 +1606,8 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `Pad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`PadBuilder::name`] or [`PadBuilder::maybe_name`] to specify a different name.
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
pub fn from_static_template(templ: &StaticPadTemplate) -> Self {
|
||||
skip_assert_initialized!();
|
||||
|
||||
|
@ -1614,7 +1622,8 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
|||
/// i.e. if it's not a wildcard-name containing `%u`, `%s` or `%d`,
|
||||
/// the `Pad` will automatically be named after the `name_template`.
|
||||
///
|
||||
/// Use [`PadBuilder::name`] or [`PadBuilder::maybe_name`] to specify a different name.
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
pub fn from_template(templ: &crate::PadTemplate) -> Self {
|
||||
assert_initialized_main_thread!();
|
||||
|
||||
|
@ -1654,25 +1663,23 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
|||
}
|
||||
}
|
||||
|
||||
let needs_specific_name = if templ.name().find('%').is_some() {
|
||||
// Pad needs a specific name
|
||||
true
|
||||
} else {
|
||||
pad.set_property("name", templ.name());
|
||||
false
|
||||
};
|
||||
|
||||
PadBuilder {
|
||||
pad,
|
||||
needs_specific_name,
|
||||
name: PadBuilderName::Undefined,
|
||||
}
|
||||
}
|
||||
|
||||
// rustdoc-stripper-ignore-next
|
||||
/// Uses the `gst::Object` generated unique name.
|
||||
pub fn generated_name(mut self) -> Self {
|
||||
self.name = PadBuilderName::KeepGenerated;
|
||||
self
|
||||
}
|
||||
|
||||
// rustdoc-stripper-ignore-next
|
||||
/// Sets the name of the Pad.
|
||||
pub fn name(mut self, name: impl glib::IntoGStr) -> Self {
|
||||
name.run_with_gstr(|name| self.pad.set_property("name", name));
|
||||
self.needs_specific_name = false;
|
||||
pub fn name(mut self, name: impl Into<String>) -> Self {
|
||||
self.name = PadBuilderName::UserDefined(name.into());
|
||||
|
||||
self
|
||||
}
|
||||
|
@ -1682,7 +1689,7 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
|||
///
|
||||
/// This method is convenient when the `name` is provided as an `Option`.
|
||||
/// If the `name` is `None`, this has no effect.
|
||||
pub fn maybe_name<N: glib::IntoGStr>(self, name: Option<N>) -> Self {
|
||||
pub fn maybe_name<N: Into<String>>(self, name: Option<N>) -> Self {
|
||||
if let Some(name) = name {
|
||||
self.name(name)
|
||||
} else {
|
||||
|
@ -1695,7 +1702,7 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
|||
///
|
||||
/// This method is convenient when the `name` is provided as an `Option`.
|
||||
/// If the `name` is `None`, this has no effect.
|
||||
pub fn name_if_some<N: glib::IntoGStr>(self, name: Option<N>) -> Self {
|
||||
pub fn name_if_some<N: Into<String>>(self, name: Option<N>) -> Self {
|
||||
if let Some(name) = name {
|
||||
self.name(name)
|
||||
} else {
|
||||
|
@ -2047,18 +2054,132 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
|
|||
/// and no specific `name` was provided using [`PadBuilder::name`]
|
||||
/// or [`PadBuilder::maybe_name`], or for [`GhostPad`s](crate::GhostPad),
|
||||
/// by defining a `target`.
|
||||
///
|
||||
/// Use [`generated_name()`](crate::PadBuilder::generated_name`) to keep the `gst::Object`
|
||||
/// automatically generated unique name.
|
||||
#[must_use = "Building the pad without using it has no effect"]
|
||||
#[track_caller]
|
||||
pub fn build(self) -> T {
|
||||
if self.needs_specific_name {
|
||||
let Self { pad, name } = self;
|
||||
|
||||
let templ = pad.pad_template();
|
||||
|
||||
use PadBuilderName::*;
|
||||
match (name, templ) {
|
||||
(KeepGenerated, _) => (),
|
||||
(Undefined, None) => (),
|
||||
(Undefined, Some(templ)) => {
|
||||
if templ.name().find('%').is_some() {
|
||||
panic!(concat!(
|
||||
"Attempt to build a Pad from a wildcard-name template",
|
||||
" or with a target Pad with an incompatible name.",
|
||||
" Make sure to define a specific name using PadBuilder.",
|
||||
" Make sure to define a specific name using PadBuilder",
|
||||
" or opt-in to keep the automatically generated name.",
|
||||
));
|
||||
} else {
|
||||
pad.set_property("name", templ.name());
|
||||
}
|
||||
}
|
||||
(UserDefined(name), _) | (CandidateForWildcardTemplate(name), None) => {
|
||||
pad.set_property("name", name);
|
||||
}
|
||||
(CandidateForWildcardTemplate(name), Some(templ)) => {
|
||||
if templ.name().find('%').is_none() {
|
||||
// Not a widlcard template
|
||||
pad.set_property("name", templ.name());
|
||||
} else {
|
||||
let mut can_assign_name = true;
|
||||
|
||||
if templ.presence() == crate::PadPresence::Request {
|
||||
// Check if the name is compatible with the name template.
|
||||
use crate::CAT_RUST;
|
||||
|
||||
let mut name_parts = name.split('_');
|
||||
for templ_part in templ.name_template().split('_') {
|
||||
let Some(name_part) = name_parts.next() else {
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using Pad name '{name}': not enough parts compared to template '{}'",
|
||||
templ.name_template(),
|
||||
);
|
||||
can_assign_name = false;
|
||||
break;
|
||||
};
|
||||
|
||||
if let Some(conv_spec_start) = templ_part.find('%') {
|
||||
if conv_spec_start > 0
|
||||
&& !name_part.starts_with(&templ_part[..conv_spec_start])
|
||||
{
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using Pad name '{name}': mismatch template '{}' prefix",
|
||||
templ.name_template(),
|
||||
);
|
||||
can_assign_name = false;
|
||||
break;
|
||||
}
|
||||
|
||||
self.pad
|
||||
let conv_spec_pos = conv_spec_start + 1;
|
||||
match templ_part.get(conv_spec_pos..=conv_spec_pos) {
|
||||
Some("s") => {
|
||||
// *There can be only one* %s
|
||||
break;
|
||||
}
|
||||
Some("u") => {
|
||||
if name_part
|
||||
.get(conv_spec_start..)
|
||||
.map_or(true, |s| s.parse::<u32>().is_err())
|
||||
{
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using Pad name '{name}': can't parse '%u' from '{name_part}' (template '{}')",
|
||||
templ.name_template(),
|
||||
);
|
||||
|
||||
can_assign_name = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
Some("d") => {
|
||||
if name_part
|
||||
.get(conv_spec_start..)
|
||||
.map_or(true, |s| s.parse::<i32>().is_err())
|
||||
{
|
||||
crate::debug!(
|
||||
CAT_RUST,
|
||||
"Not using target Pad name '{name}': can't parse '%i' from '{name_part}' (template '{}')",
|
||||
templ.name_template(),
|
||||
);
|
||||
|
||||
can_assign_name = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
other => {
|
||||
unreachable!("Unexpected conversion specifier {other:?}")
|
||||
}
|
||||
}
|
||||
} else if name_part != templ_part {
|
||||
can_assign_name = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if can_assign_name {
|
||||
pad.set_property("name", name);
|
||||
} else {
|
||||
panic!(concat!(
|
||||
"Attempt to build a Pad from a wildcard-name template",
|
||||
" with a target Pad with an incompatible name.",
|
||||
" Make sure to define a specific name using PadBuilder",
|
||||
" or opt-in to keep the automatically generated name.",
|
||||
));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pad
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -2484,11 +2605,21 @@ mod tests {
|
|||
let pad = crate::Pad::builder(crate::PadDirection::Unknown).build();
|
||||
assert!(pad.name().starts_with("pad"));
|
||||
|
||||
let pad = crate::Pad::builder(crate::PadDirection::Unknown)
|
||||
.generated_name()
|
||||
.build();
|
||||
assert!(pad.name().starts_with("pad"));
|
||||
|
||||
let pad = crate::Pad::builder(crate::PadDirection::Unknown)
|
||||
.maybe_name(None::<&str>)
|
||||
.build();
|
||||
assert!(pad.name().starts_with("pad"));
|
||||
|
||||
let pad = crate::Pad::builder(crate::PadDirection::Unknown)
|
||||
.name_if_some(None::<&str>)
|
||||
.build();
|
||||
assert!(pad.name().starts_with("pad"));
|
||||
|
||||
let pad = crate::Pad::builder(crate::PadDirection::Sink)
|
||||
.name("sink_0")
|
||||
.build();
|
||||
|
@ -2509,6 +2640,11 @@ mod tests {
|
|||
.build();
|
||||
assert_eq!(pad.name(), "test");
|
||||
|
||||
let pad = crate::Pad::builder(crate::PadDirection::Unknown)
|
||||
.name_if_some(Some("test"))
|
||||
.build();
|
||||
assert_eq!(pad.name(), "test");
|
||||
|
||||
let caps = crate::Caps::new_any();
|
||||
let templ = crate::PadTemplate::new(
|
||||
"sink",
|
||||
|
@ -2526,6 +2662,9 @@ mod tests {
|
|||
.build();
|
||||
assert!(pad.name().starts_with("audio_sink"));
|
||||
|
||||
let pad = Pad::builder_from_template(&templ).generated_name().build();
|
||||
assert!(pad.name().starts_with("pad"));
|
||||
|
||||
let templ = crate::PadTemplate::new(
|
||||
"audio_%u",
|
||||
crate::PadDirection::Sink,
|
||||
|
@ -2536,6 +2675,9 @@ mod tests {
|
|||
|
||||
let pad = Pad::builder_from_template(&templ).name("audio_0").build();
|
||||
assert!(pad.name().starts_with("audio_0"));
|
||||
|
||||
let pad = Pad::builder_from_template(&templ).generated_name().build();
|
||||
assert!(pad.name().starts_with("pad"));
|
||||
}
|
||||
|
||||
#[test]
|
||||
|
|
Loading…
Reference in a new issue