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fmp4mux: Renamed caps_change_allowed() to header_update_allowed()

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Because tag events like orientation and language require a header
update as well.

For proper logging the function now takes a reason parameter and logs
a debug message in case the header update is allowed.

And added some explanation to the function to make sure that it is
used in the right place.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1762>
This commit is contained in:
Jochen Henneberg 2024-09-20 13:54:38 +02:00
parent c0f3eff18e
commit 8313260e09
1 changed files with 30 additions and 9 deletions
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39
mux/fmp4/src/fmp4mux/imp.rs
View file

@ -668,16 +668,28 @@ impl FMP4Mux {
stream.pre_queue.pop_front().unwrap()
}
// Caps changes are allowed only in case that the
// header-update-mode is None
fn caps_change_allowed(&self) -> bool {
// Caps/tag changes are allowed only in case that the
// header-update-mode is None.
//
// CAUTION: This function logs a warning if operation is not
// allowed so it should be evaluated only in case the caps/tags
// would change otherwise (e. g. right-most operand in boolean
// expressions).
fn header_update_allowed(&self, reason: &str) -> bool {
if self.settings.lock().unwrap().header_update_mode == super::HeaderUpdateMode::None {
gst::debug!(
CAT,
imp = self,
"Header update because incompatible change of {}",
reason
);
true
} else {
gst::error!(
CAT,
imp = self,
"Caps change not allowed if header-update-mode is enabled"
"Incompatible {} change not allowed if header-update-mode is enabled",
reason
);
false
}
@ -3427,7 +3439,8 @@ impl AggregatorImpl for FMP4Mux {
.iter_mut()
.find(|s| *aggregator_pad == s.sinkpad)
{
if self.caps_change_allowed() && !self.caps_compatible(stream, caps.caps())
if !self.caps_compatible(stream, caps.caps())
&& self.header_update_allowed("caps")
{
gst::trace!(
CAT,
@ -3435,7 +3448,7 @@ impl AggregatorImpl for FMP4Mux {
"Update caps and send new headers {:?}",
caps
);
stream.next_caps = Some(caps.caps().to_owned());
stream.next_caps = Some(caps.caps_owned());
true
} else {
false
@ -3471,7 +3484,7 @@ impl AggregatorImpl for FMP4Mux {
// trigger caps change
if state.language_code != language_code
&& !state.streams.is_empty()
&& self.caps_change_allowed()
&& self.header_update_allowed("language code")
{
state.language_code = language_code;
state.need_new_header = true;
@ -3497,14 +3510,22 @@ impl AggregatorImpl for FMP4Mux {
// "flip-rotate-90" => Some(ImageOrientation::FlipRotate90),
// "flip-rotate-180" => Some(ImageOrientation::FlipRotate180),
// "flip-rotate-270" => Some(ImageOrientation::FlipRotate270),
_ => None,
_ => {
gst::info!(
CAT,
imp = self,
"Orientation {:?} not yet supported",
orientation
);
None
}
};
// If the orientation changed and we have buffers
// trigger caps change
if state.orientation != orientation
&& !state.streams.is_empty()
&& self.caps_change_allowed()
&& self.header_update_allowed("orientation")
{
state.orientation = orientation;
state.need_new_header = true;