/// <summary>
/// Computes the main component.
/// </summary>
private void ComputeMainComponent()
{
// Try for the main component to be the video (if it's not stuff like audio album art, that is)
if (HasVideo && HasAudio &&
(Video.StreamInfo.Disposition & ffmpeg.AV_DISPOSITION_ATTACHED_PIC) != ffmpeg.AV_DISPOSITION_ATTACHED_PIC)
{
Main = Video;
return;
}
// If it was not vide, then it has to be audio (if it has audio)
if (HasAudio)
{
Main = Audio;
return;
}
// Set it to video even if it's attached pic stuff
if (HasVideo)
{
Main = Video;
return;
}
// As a last resort, set the main component to be the subtitles
if (HasSubtitles)
{
Main = Subtitles;
return;
}
// We whould never really hit this line
if (Items.Count > 0)
Main = Items.First().Value;
}
/// <summary>
/// Gets or sets the <see cref="MediaComponent"/> with the specified media type.
/// Setting a new component on an existing media type component will throw.
/// Getting a non existing media component fro the given media type will return null.
/// </summary>
/// <param name="mediaType">Type of the media.</param>
/// <returns>The media component</returns>
/// <exception cref="ArgumentException">When the media type is invalid</exception>
/// <exception cref="ArgumentNullException">MediaComponent</exception>
public MediaComponent this[MediaType mediaType]
{
get
{
lock (SyncLock) return(Items.ContainsKey(mediaType) ? Items[mediaType] : null);
}
set
{
lock (SyncLock)
{
if (Items.ContainsKey(mediaType))
{
throw new ArgumentException($"A component for '{mediaType}' is already registered.");
}
Items[mediaType] = value ?? throw new ArgumentNullException($"{nameof(MediaComponent)} {nameof(value)} must not be null.");
// Try for the main component to be the video (if it's not stuff like audio album art, that is)
if (HasVideo && HasAudio &&
(Video.StreamInfo.Disposition & ffmpeg.AV_DISPOSITION_ATTACHED_PIC) != ffmpeg.AV_DISPOSITION_ATTACHED_PIC)
{
Main = Video;
return;
}
// If it was not vide, then it has to be audio (if it has audio)
if (HasAudio)
{
Main = Audio;
return;
}
// Set it to video even if it's attached pic stuff
if (HasVideo)
{
Main = Video;
return;
}
// As a last resort, set the main component to be the subtitles
if (HasSubtitles)
{
Main = Subtitles;
return;
}
// We whould never really hit this line
if (Items.Count > 0)
{
Main = Items.First().Value;
}
}
}
}