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awstranslate: improve message posted on bus

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* Include speaker if available

* Instead of directly using the raw string received from awstranslate,
  post-process it to remove spans and include per-item timestamps

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/2073>
This commit is contained in:
Mathieu Duponchelle 2025-02-13 13:09:08 +01:00 committed by GStreamer Marge Bot
parent 4e64b63bfe
commit 8dd8d67974
1 changed files with 26 additions and 12 deletions
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38
net/aws/src/translate/imp.rs
View file

@ -117,6 +117,7 @@ struct State {
discont: bool,
seqnum: gst::Seqnum,
chained_one: bool,
current_speaker: Option<String>,
}
impl Default for State {
@ -131,6 +132,7 @@ impl Default for State {
discont: false,
seqnum: gst::Seqnum::next(),
chained_one: false,
current_speaker: None,
}
}
}
@ -282,6 +284,8 @@ impl Translate {
}
"rstranscribe/speaker-change" => {
gst::debug!(CAT, imp = self, "speaker change, draining");
self.state.lock().unwrap().current_speaker =
s.get::<String>("speaker").ok();
true
}
_ => false,
@ -446,7 +450,7 @@ impl Translate {
)
};
let (client, segment) = {
let (client, segment, speaker) = {
let mut state = self.state.lock().unwrap();
state
@ -458,6 +462,7 @@ impl Translate {
(
state.client.as_ref().unwrap().clone(),
state.segment.as_ref().unwrap().clone(),
state.current_speaker.clone(),
)
};
@ -519,17 +524,6 @@ impl Translate {
gst::log!(CAT, imp = self, "translation received: {translated_text}");
let s = gst::Structure::builder("awstranslate/raw")
.field("translation", &translated_text)
.field("arrival-time", self.obj().current_running_time())
.field("start-time", to_translate.start_pts())
.field("language-code", &output_lang)
.build();
let _ = self
.obj()
.post_message(gst::message::Element::builder(s).src(&*self.obj()).build());
let upstream_latency = self.upstream_latency();
let mut translated_items = match tokenization_method {
@ -561,6 +555,8 @@ impl Translate {
gst::log!(CAT, imp = self, "translated items: {translated_items:?}");
let mut translated_items_builder = gst::Structure::builder("awstranslate/items");
for mut item in translated_items.drain(..) {
if let Some((upstream_live, upstream_min, _)) = upstream_latency {
if upstream_live {
@ -581,6 +577,8 @@ impl Translate {
}
}
translated_items_builder = translated_items_builder.field(&item.content, item.pts);
let mut buf = gst::Buffer::from_mut_slice(item.content.into_bytes());
{
let buf_mut = buf.get_mut().unwrap();
@ -596,6 +594,22 @@ impl Translate {
output.push(TranslateOutput::Item(buf));
}
let mut message_builder = gst::Structure::builder("awstranslate/raw")
.field("translation", translated_items_builder.build())
.field("arrival-time", self.obj().current_running_time())
.field("start-time", to_translate.start_pts())
.field("language-code", &output_lang);
if let Some(speaker) = speaker {
message_builder = message_builder.field("speaker", speaker);
}
let _ = self.obj().post_message(
gst::message::Element::builder(message_builder.build())
.src(&*self.obj())
.build(),
);
Ok(output)
}