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fix(read_header): find correct default sample duration

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Stuart Woodbury 2023-08-03 11:18:24 -04:00
parent 11dbf72d7c
commit b3ba12433e
1 changed files with 11 additions and 13 deletions
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24
src/reader.rs
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@ -97,23 +97,21 @@ impl<R: Read + Seek> Mp4Reader<R> {
// Update tracks if any fragmented (moof) boxes are found. // Update tracks if any fragmented (moof) boxes are found.
if !moofs.is_empty() { if !moofs.is_empty() {
let mut default_sample_duration = 0;
if let Some(ref moov) = moov {
if let Some(ref mvex) = &moov.mvex {
// todo: do this better. matches the original behavior before mvex.trex was changed to an array.
default_sample_duration = mvex
.trex
.first()
.map(|x| x.default_sample_duration)
.unwrap_or(0)
}
}
for (moof, moof_offset) in moofs.iter().zip(moof_offsets) { for (moof, moof_offset) in moofs.iter().zip(moof_offsets) {
for traf in moof.trafs.iter() { for traf in moof.trafs.iter() {
let track_id = traf.tfhd.track_id; let track_id = traf.tfhd.track_id;
if let Some(track) = tracks.get_mut(&track_id) { if let Some(track) = tracks.get_mut(&track_id) {
track.default_sample_duration = default_sample_duration; track.default_sample_duration = moov
.as_ref()
.and_then(|moov| {
moov.mvex.as_ref().and_then(|mvex| {
mvex.trex
.iter()
.find(|trex| trex.track_id == track.track_id())
.map(|trex| trex.default_sample_duration)
})
})
.unwrap_or(0);
track.moof_offsets.push(moof_offset); track.moof_offsets.push(moof_offset);
track.trafs.push(traf.clone()) track.trafs.push(traf.clone())
} else { } else {