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net/aws/transcriber: own transcription items

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So that we can avoid copying the content.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1104>
This commit is contained in:
François Laignel 2023-02-28 17:38:20 +01:00 committed by GStreamer Marge Bot
parent 36ae29d746
commit f1a080c94e
1 changed files with 13 additions and 10 deletions
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23
net/aws/src/transcriber/imp.rs
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@ -299,7 +299,12 @@ impl Transcriber {
/// Enqueues a buffer for each of the provided stable items.
///
/// Returns `true` if at least one buffer was enqueued.
fn enqueue(&self, items: &[model::Item], partial: bool, lateness: gst::ClockTime) -> bool {
fn enqueue(
&self,
mut items: Vec<model::Item>,
partial: bool,
lateness: gst::ClockTime,
) -> bool {
let mut state = self.state.lock().unwrap();
if items.len() <= state.partial_index {
@ -320,12 +325,12 @@ impl Transcriber {
let mut enqueued = false;
for item in &items[state.partial_index..] {
for item in items.drain(state.partial_index..) {
if !item.stable().unwrap_or(false) {
break;
}
let Some(content) = item.content() else { continue };
let Some(content) = item.content else { continue };
let start_time = ((item.start_time * 1_000_000_000.0) as u64).nseconds() + lateness;
let end_time = ((item.end_time * 1_000_000_000.0) as u64).nseconds() + lateness;
@ -337,7 +342,7 @@ impl Transcriber {
"Item is ready for queuing: {content}, PTS {start_time}",
);
let mut buf = gst::Buffer::from_mut_slice(content.to_string().into_bytes());
let mut buf = gst::Buffer::from_mut_slice(content.into_bytes());
{
let buf = buf.get_mut().unwrap();
@ -825,9 +830,8 @@ impl Transcriber {
if let Some(result) = transcript_evt
.transcript
.as_ref()
.and_then(|transcript| transcript.results())
.and_then(|results| results.get(0))
.and_then(|transcript| transcript.results)
.and_then(|mut results| results.drain(..).next())
{
let Some(imp) = imp_weak.upgrade() else { break };
@ -835,10 +839,9 @@ impl Transcriber {
if let Some(alternative) = result
.alternatives
.as_ref()
.and_then(|alternatives| alternatives.get(0))
.and_then(|mut alternatives| alternatives.drain(..).next())
{
if let Some(items) = alternative.items() {
if let Some(items) = alternative.items {
enqueued = imp.enqueue(items, result.is_partial, lateness);
}
}