internal override TrackBase InternalGetTrackInfo(TrackType trackType, int trackIndex, ref bool isActiveTrack)
{
TrackBase result = null;
switch (trackType)
{
case TrackType.Video:
{
string trackName = AVPPlayerGetVideoTrackName(_playerIndex, trackIndex);
string trackLanguage = AVPPlayerGetVideoTrackLanguage(_playerIndex, trackIndex);
bool isActive = AVPPlayerIsVideoTrackActive(_playerIndex, trackIndex);
result = new VideoTrack(trackIndex, trackName, trackLanguage, isActive);
break;
}
case TrackType.Audio:
{
string trackName = AVPPlayerGetAudioTrackName(_playerIndex, trackIndex);
string trackLanguage = AVPPlayerGetAudioTrackLanguage(_playerIndex, trackIndex);
bool isActive = AVPPlayerIsAudioTrackActive(_playerIndex, trackIndex);
result = new AudioTrack(trackIndex, trackName, trackLanguage, isActive);
break;
}
case TrackType.Text:
{
string trackName = AVPPlayerGetTextTrackName(_playerIndex, trackIndex);
string trackLanguage = AVPPlayerGetTextTrackLanguage(_playerIndex, trackIndex);
bool isActive = AVPPlayerIsTextTrackActive(_playerIndex, trackIndex);
result = new TextTrack(trackIndex, trackName, trackLanguage, isActive);
break;
}
}
return(result);
}
private void SetActiveTrack(TrackCollection collection, TrackBase track)
{
// Check if this is already the active track
if (collection.IsActiveTrack(track))
{
return;
}
// Convert from TextTrack to uid
int trackUid = -1;
if (track != null)
{
trackUid = track.Uid;
}
// Set track based on uid (-1 is no active track)
// NOTE: TrackType is pulled from collection as track may be null
if (InternalSetActiveTrack(collection.TrackType, trackUid))
{
collection.SetActiveTrack(track);
switch (collection.TrackType)
{
case TrackType.Text:
UpdateTextCue(force: true);
break;
}
}
}
private void PopulateTrackCollection(TrackCollection collection)
{
collection.Clear();
int trackCount = InternalGetTrackCount(collection.TrackType);
for (int i = 0; i < trackCount; i++)
{
bool isActiveTrack = false;
TrackBase track = InternalGetTrackInfo(collection.TrackType, i, ref isActiveTrack);
if (track != null)
{
collection.Add(track);
if (isActiveTrack)
{
collection.SetActiveTrack(track);
}
}
else
{
UnityEngine.Debug.LogWarning(string.Format("[AVProVideo] Failed to enumerate {0} track {1} ", collection.TrackType, i));
}
}
}
internal abstract void SetActiveTrack(TrackBase track);
internal abstract bool IsActiveTrack(TrackBase track);
internal abstract void Add(TrackBase track);
