public static async Task <List <string> > GetAllLanguageCodes(
this IQueryable <LanguageCode> languageCodes,
string mediaCode)
{
if (string.IsNullOrWhiteSpace(mediaCode))
{
return(new List <string>());
}
string code = mediaCode.ToLowerInvariant();
List <LanguageCode> maybeLanguages = await languageCodes
.Filter(lc => lc.ThreeCode1 == code || lc.ThreeCode2 == code)
.ToListAsync();
var result = new System.Collections.Generic.HashSet <string>();
foreach (LanguageCode language in maybeLanguages)
{
if (!string.IsNullOrWhiteSpace(language.ThreeCode1))
{
result.Add(language.ThreeCode1);
}
if (!string.IsNullOrWhiteSpace(language.ThreeCode2))
{
result.Add(language.ThreeCode2);
}
}
return(result.ToList());
}
public static async Task <List <string> > GetAllLanguageCodes(
this IQueryable <LanguageCode> languageCodes,
List <string> mediaCodes)
{
var validCodes = mediaCodes
.Filter(c => !string.IsNullOrWhiteSpace(c))
.Map(c => c.ToLowerInvariant())
.ToList();
if (validCodes.Count == 0)
{
return(new List <string>());
}
List <LanguageCode> maybeLanguages = await languageCodes
.Filter(lc => validCodes.Contains(lc.ThreeCode1) || validCodes.Contains(lc.ThreeCode2))
.ToListAsync();
var result = new System.Collections.Generic.HashSet <string>();
foreach (LanguageCode language in maybeLanguages)
{
if (!string.IsNullOrWhiteSpace(language.ThreeCode1))
{
result.Add(language.ThreeCode1);
}
if (!string.IsNullOrWhiteSpace(language.ThreeCode2))
{
result.Add(language.ThreeCode2);
}
}
return(result.ToList());
}
private static async Task <List <HardwareAccelerationKind> > GetSupportedAccelerationKinds(
string ffmpegPath,
CancellationToken cancellationToken)
{
var result = new System.Collections.Generic.HashSet <HardwareAccelerationKind>();
string output = await GetProcessOutput(ffmpegPath, new[] { "-v", "quiet", "-hwaccels" }, cancellationToken);
foreach (string method in output.Split("\n").Map(s => s.Trim()).Skip(1))
{
switch (method)
{
case "vaapi":
result.Add(HardwareAccelerationKind.Vaapi);
break;
case "nvenc":
result.Add(HardwareAccelerationKind.Nvenc);
break;
case "cuda":
result.Add(HardwareAccelerationKind.Nvenc);
break;
case "qsv":
result.Add(HardwareAccelerationKind.Qsv);
break;
case "videotoolbox":
result.Add(HardwareAccelerationKind.VideoToolbox);
break;
}
}
return(result.ToList());
}
