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scc_parse: Don't send a new caps event for every new line

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Only send new caps when the framerate has actually changed.
This commit is contained in:
Sebastian Dröge 2019-02-12 14:34:19 +02:00
parent e8c5884931
commit aebbe8c39b
1 changed files with 10 additions and 5 deletions
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15
gst-plugin-closedcaption/src/scc_parse.rs
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@ -46,6 +46,7 @@ struct State {
parser: SccParser,
need_segment: bool,
pending_events: Vec<gst::Event>,
framerate: Option<gst::Fraction>,
start_position: gst::ClockTime,
last_position: gst::ClockTime,
last_timecode: Option<gst_video::ValidVideoTimeCode>,
@ -58,6 +59,7 @@ impl Default for State {
parser: SccParser::new(),
need_segment: true,
pending_events: Vec::new(),
framerate: None,
start_position: gst::CLOCK_TIME_NONE,
last_position: gst::CLOCK_TIME_NONE,
last_timecode: None,
@ -311,11 +313,14 @@ impl SccParse {
let mut events = Vec::new();
let caps = gst::Caps::builder("closedcaption/x-cea-608")
.field("format", &"raw")
.field("framerate", &framerate)
.build();
events.push(gst::Event::new_caps(&caps).build());
if Some(framerate) != state.framerate {
let caps = gst::Caps::builder("closedcaption/x-cea-608")
.field("format", &"raw")
.field("framerate", &framerate)
.build();
events.push(gst::Event::new_caps(&caps).build());
state.framerate = Some(framerate);
}
if state.need_segment {
let segment = gst::FormattedSegment::<gst::format::Time>::new();