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transcriberbin: fix initial transcription setup

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Only link the audio tee with the pad transcriber when it is not
in passthrough mode.

Fixes: https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/628
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1916>
This commit is contained in:
Mathieu Duponchelle 2024-11-13 19:16:37 +01:00 committed by GStreamer Marge Bot
parent 4284fe953a
commit d993c95e38
1 changed files with 32 additions and 5 deletions
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37
video/closedcaption/src/transcriberbin/imp.rs
View file

@ -39,6 +39,7 @@ const DEFAULT_MUX_METHOD: MuxMethod = MuxMethod::Cea608;
const CEAX08MUX_LATENCY: gst::ClockTime = gst::ClockTime::from_mseconds(100);
#[derive(Debug)]
enum TargetPassthroughState {
None,
Enabled,
@ -567,11 +568,15 @@ impl TranscriberBin {
.transcription_bin
.sync_state_with_parent()
.unwrap();
let transcription_sink_pad = state.transcription_bin.static_pad(&pad.name()).unwrap();
// Might be linked already if "translation-languages" is set
if transcription_sink_pad.peer().is_none() {
let audio_tee_pad = pad_state.audio_tee.request_pad_simple("src_%u").unwrap();
audio_tee_pad.link(&transcription_sink_pad).unwrap();
let pad_settings = pad.imp().settings.lock().unwrap();
if !pad_settings.passthrough {
let transcription_sink_pad =
state.transcription_bin.static_pad(&pad.name()).unwrap();
// Might be linked already if "translation-languages" is set
if transcription_sink_pad.peer().is_none() {
let audio_tee_pad = pad_state.audio_tee.request_pad_simple("src_%u").unwrap();
audio_tee_pad.link(&transcription_sink_pad).unwrap();
}
}
}
@ -594,6 +599,9 @@ impl TranscriberBin {
let bin_sink_pad = state.transcription_bin.static_pad(&pad.name()).unwrap();
if let Some(audio_tee_pad) = bin_sink_pad.peer() {
audio_tee_pad.unlink(&bin_sink_pad).unwrap();
gst::debug!(CAT, obj = pad, "releasing audio tee pad");
pad_state.audio_tee.release_request_pad(&audio_tee_pad);
}
@ -622,11 +630,21 @@ impl TranscriberBin {
state: &mut State,
pad_state: &mut TranscriberSinkPadState,
) {
gst::debug!(CAT, imp = sinkpad, "enabling transcription bin");
for channel in pad_state.transcription_channels.values() {
let srcpad = pad_state
.transcription_bin
.static_pad(&format!("src_{}", channel.language))
.unwrap();
gst::log!(
CAT,
obj = srcpad,
"linking transcription channel for language {}",
channel.language
);
let sinkpad = state
.ccmux
.static_pad(&channel.ccmux_pad_name)
@ -686,6 +704,8 @@ impl TranscriberBin {
return gst::PadProbeReturn::Remove;
};
gst::debug!(CAT, imp = imp, "pad probed");
let pad_imp = pad
.downcast_ref::<super::TranscriberSinkPad>()
.unwrap()
@ -2078,6 +2098,13 @@ impl ObjectImpl for TranscriberSinkPad {
}
drop(pad_settings);
gst::debug!(
CAT,
imp = self,
"target passthrough state: {:?}",
pad_state.target_passthrough_state
);
parent.imp().block_and_update(self, s, ps);
}
"translation-languages" => {