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mp4mux: Remove unnecessary error case of negative PTS when doing the ONVIF UTC time calculations

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/987>
This commit is contained in:
Sebastian Dröge 2022-11-17 19:57:17 +02:00
parent c771c86631
commit ea0d5751a2
1 changed files with 6 additions and 11 deletions
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17
mux/mp4/src/mp4mux/imp.rs
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@ -116,7 +116,7 @@ struct Stream {
end_pts: Option<gst::ClockTime>,
/// In ONVIF mode, the mapping between running time and UTC time (UNIX)
running_time_utc_time_mapping: Option<(gst::ClockTime, gst::ClockTime)>,
running_time_utc_time_mapping: Option<(gst::Signed<gst::ClockTime>, gst::ClockTime)>,
}
#[derive(Default)]
@ -173,7 +173,7 @@ impl MP4Mux {
sinkpad: &super::MP4MuxPad,
delta_frames: super::DeltaFrames,
pre_queue: &mut VecDeque<(gst::FormattedSegment<gst::ClockTime>, gst::Buffer)>,
running_time_utc_time_mapping: &Option<(gst::ClockTime, gst::ClockTime)>,
running_time_utc_time_mapping: &Option<(gst::Signed<gst::ClockTime>, gst::ClockTime)>,
) -> Result<Option<(gst::FormattedSegment<gst::ClockTime>, gst::Buffer)>, gst::FlowError> {
if let Some((segment, buffer)) = pre_queue.front() {
return Ok(Some((segment.clone(), buffer.clone())));
@ -214,7 +214,7 @@ impl MP4Mux {
None => {
// Calculate from the mapping
gst::Signed::Positive(running_time_utc_time_mapping.1)
.checked_sub_unsigned(running_time_utc_time_mapping.0)
.checked_sub(running_time_utc_time_mapping.0)
.and_then(|res| res.checked_add(pts))
.and_then(|res| res.positive())
.ok_or_else(|| {
@ -268,7 +268,7 @@ impl MP4Mux {
sinkpad: &super::MP4MuxPad,
delta_frames: super::DeltaFrames,
pre_queue: &mut VecDeque<(gst::FormattedSegment<gst::ClockTime>, gst::Buffer)>,
running_time_utc_time_mapping: &mut Option<(gst::ClockTime, gst::ClockTime)>,
running_time_utc_time_mapping: &mut Option<(gst::Signed<gst::ClockTime>, gst::ClockTime)>,
) -> Result<Option<(gst::FormattedSegment<gst::ClockTime>, gst::Buffer)>, gst::FlowError> {
// In ONVIF mode we need to get UTC times for each buffer and synchronize based on that.
// Queue up to 6s of data to get the first UTC time and then backdate.
@ -331,18 +331,13 @@ impl MP4Mux {
}
};
let running_time = segment.to_running_time_full(buffer.pts()).unwrap();
let running_time = segment.to_running_time_full(buffer.pts().unwrap()).unwrap();
gst::info!(
CAT,
obj: sinkpad,
"Got initial UTC time {utc_time} at PTS running time {running_time}",
);
let running_time = running_time.positive().unwrap_or_else(|| {
gst::error!(CAT, obj: sinkpad, "Stream has negative PTS running time");
gst::ClockTime::ZERO
});
*running_time_utc_time_mapping = Some((running_time, utc_time));
// Push the buffer onto the pre-queue and re-timestamp it and all other buffers
@ -354,7 +349,7 @@ impl MP4Mux {
let pts = segment.to_running_time_full(buffer.pts().unwrap()).unwrap();
let pts_utc_time = gst::Signed::Positive(utc_time)
.checked_sub_unsigned(running_time)
.checked_sub(running_time)
.and_then(|res| res.checked_add(pts))
.and_then(|res| res.positive())
.ok_or_else(|| {