private YDLVideoFormatEntry?FindMatchingFormatByQuality(YDLVideoEntry videoEntry, int quality = -1)
{
if (videoEntry.Formats.Count == 0)
{
return(null);
}
if (quality == -1)
{
return(videoEntry.Formats[0]);
}
//if we find an mp4 video with desired height/resolution return it
var fmt = FindOnlyMatchingMp4(videoEntry, quality);
if (fmt != null)
{
return(fmt);
}
//if no mp4 is found look for other formats like mkv or webm
foreach (var format in videoEntry.Formats)
{
if (!string.IsNullOrEmpty(format.Height) &&
Int32.TryParse(format.Height, out int height) &&
height == quality)
{
return(format);
}
}
//so far no luck, try to find next best resoultion
var max = -1;
foreach (var format in videoEntry.Formats)
{
if (!string.IsNullOrEmpty(format.Height) &&
Int32.TryParse(format.Height, out int height) &&
height > 0 &&
quality > height)
{
if (height > max)
{
max = height;
fmt = format;
}
}
}
if (fmt != null)
{
return(fmt);
}
//could not found anything as per criteria, return the first format
return(videoEntry.Formats[0]);
}
private YDLVideoFormatEntry?FindOnlyMatchingMp4(YDLVideoEntry videoEntry, int quality)
{
if (videoEntry.Formats.Count == 0)
{
return(null);
}
foreach (var format in videoEntry.Formats)
{
if (!string.IsNullOrEmpty(format.Height) &&
Int32.TryParse(format.Height, out int height) &&
height == quality &&
(format.FileExt?.ToLowerInvariant()?.EndsWith("mp4") ?? false))
{
return(format);
}
}
return(null);
}
