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transcriberbin: Fix mux-method=cea708

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* Update "translation-languages" property to include G_PARAM_CONSTRUCT
so that it can be applied to initial state.

* Change default "translation-languages" value to be None instead of
cea608 specific one. Transcriberbin will be able to configure initia
state depending on selected mux method if "translation-languages" is
unspecified.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1589>
This commit is contained in:
Seungha Yang 2024-05-28 21:54:54 +09:00
parent 45800d7636
commit ebdcc403cf
2 changed files with 16 additions and 18 deletions
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2
docs/plugins/gst_plugins_cache.json
View file

@ -6152,7 +6152,7 @@
"translation-languages": {
"blurb": "A map of language codes to caption channels, e.g. translation-languages=\"languages, transcript={CC1, 708_1}, fr={708_2, CC3}\" will map the French translation to CC1/service 1 and the original transcript to CC3/service 2",
"conditionally-available": false,
"construct": false,
"construct": true,
"construct-only": false,
"controllable": false,
"default": "languages, transcript=(string)cc1;",

32
video/closedcaption/src/transcriberbin/imp.rs
View file

@ -1248,6 +1248,7 @@ impl ObjectImpl for TranscriberBin {
glib::ParamSpecBoxed::builder::<gst::Structure>("translation-languages")
.nick("Translation languages")
.blurb("A map of language codes to caption channels, e.g. translation-languages=\"languages, transcript={CC1, 708_1}, fr={708_2, CC3}\" will map the French translation to CC1/service 1 and the original transcript to CC3/service 2")
.construct()
.mutable_playing()
.build(),
glib::ParamSpecUInt::builder("translate-latency")
@ -1754,11 +1755,7 @@ struct TranscriberSinkPadSettings {
impl Default for TranscriberSinkPadSettings {
fn default() -> Self {
Self {
translation_languages: Some(
gst::Structure::builder("languages")
.field("transcript", "cc1")
.build(),
),
translation_languages: None,
language_code: String::from(DEFAULT_INPUT_LANG_CODE),
mode: DEFAULT_MODE,
}
@ -1857,19 +1854,20 @@ impl ObjectImpl for TranscriberSinkPad {
fn set_property(&self, _id: usize, value: &glib::Value, pspec: &glib::ParamSpec) {
match pspec.name() {
"translation-languages" => {
if let Some(this) = self.obj().parent().and_downcast::<super::TranscriberBin>() {
let mut settings = self.settings.lock().unwrap();
settings.translation_languages = value
.get::<Option<gst::Structure>>()
.expect("type checked upstream");
gst::debug!(
CAT,
imp: self,
"Updated translation-languages {:?}",
settings.translation_languages
);
drop(settings);
let mut settings = self.settings.lock().unwrap();
settings.translation_languages = value
.get::<Option<gst::Structure>>()
.expect("type checked upstream");
gst::debug!(
CAT,
imp: self,
"Updated translation-languages {:?}",
settings.translation_languages
);
drop(settings);
if let Some(this) = self.obj().parent().and_downcast::<super::TranscriberBin>() {
this.imp().update_languages(&self.obj(), false);
}
}