, _audio_mapping (node->node_child ("AudioMapping"), version)
{
_audio_channels = node->number_child<int> ("AudioChannels");
- _audio_length = ContentTime (node->number_child<int64_t> ("AudioLength"));
+ _audio_length = ContentTime (node->number_child<ContentTime::Type> ("AudioLength"));
_audio_frame_rate = node->number_child<int> ("AudioFrameRate");
}