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examples/dash_vod: compare durations to the millisecond

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Otherwise when the segment durations aren't as clean cut as in the
example, multiple segments with the exact same duration in milliseconds
will get output, even though they could have been repeated.

Fix this so that people copying this code don't encounter the bug.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1582>
This commit is contained in:
Mathieu Duponchelle 2024-05-14 21:34:33 +02:00 committed by Sebastian Dröge
parent d0dc85293d
commit ea832a6726
1 changed files with 14 additions and 15 deletions
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29
mux/fmp4/examples/dash_vod.rs
View file

@ -179,19 +179,18 @@ fn main() -> Result<(), Error> {
// Write the whole segment timeline out here, compressing multiple segments with
// the same duration to a repeated segment.
let mut segments = vec![];
let mut write_segment =
|start: gst::ClockTime, duration: gst::ClockTime, repeat: usize| {
let mut s = dash_mpd::S {
t: Some(start.mseconds()),
d: duration.mseconds(),
..Default::default()
};
if repeat > 0 {
s.r = Some(repeat as i64);
}
segments.push(s);
let mut write_segment = |start: gst::ClockTime, duration: u64, repeat: usize| {
let mut s = dash_mpd::S {
t: Some(start.mseconds()),
d: duration,
..Default::default()
};
if repeat > 0 {
s.r = Some(repeat as i64);
}
segments.push(s);
};
let mut start = None;
let mut num_segments = 0;
@ -201,15 +200,15 @@ fn main() -> Result<(), Error> {
start = Some(segment.start_time);
}
if last_duration.is_none() {
last_duration = Some(segment.duration);
last_duration = Some(segment.duration.mseconds());
}
// If the duration of this segment is different from the previous one then we
// have to write out the segment now.
if last_duration != Some(segment.duration) {
if last_duration != Some(segment.duration.mseconds()) {
write_segment(start.unwrap(), last_duration.unwrap(), num_segments - 1);
start = Some(segment.start_time);
last_duration = Some(segment.duration);
last_duration = Some(segment.duration.mseconds());
num_segments = 1;
} else {
num_segments += 1;