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fmp4mux: Write sample flags in tfhd if there's only a single sample

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Instead of declaring them to be in the `tfhd` but not writing them into
the `tfhd` but also not the `trun`.
This commit is contained in:
Sebastian Dröge 2022-05-12 15:34:25 +03:00
parent d27e279272
commit 23cc00ce4b
1 changed files with 5 additions and 0 deletions
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5
generic/fmp4/src/fmp4mux/boxes.rs
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@ -1469,6 +1469,7 @@ fn analyze_buffers(
let f = sample_flags_from_buffer(buffer, intra_only);
if first_buffer_flags.is_none() {
first_buffer_flags = Some(f);
flags = Some(f);
} else if flags.is_none() {
if Some(f) != first_buffer_flags {
tr_flags |= FIRST_SAMPLE_FLAGS_PRESENT;
@ -1563,6 +1564,10 @@ fn write_traf(v: &mut Vec<u8>, cfg: &super::FragmentHeaderConfiguration) -> Resu
negative_composition_time_offsets,
) = analyze_buffers(cfg, check_dts, intra_only, timescale)?;
assert!((tf_flags & DEFAULT_SAMPLE_SIZE_PRESENT == 0) ^ default_size.is_some());
assert!((tf_flags & DEFAULT_SAMPLE_DURATION_PRESENT == 0) ^ default_duration.is_some());
assert!((tf_flags & DEFAULT_SAMPLE_FLAGS_PRESENT == 0) ^ default_flags.is_some());
write_full_box(v, b"tfhd", FULL_BOX_VERSION_0, tf_flags, |v| {
write_tfhd(v, cfg, default_size, default_duration, default_flags)
})?;