private Task <GrabResult> GrabAsync(Uri uri, PlaylistDocument doc, CancellationToken cancellationToken,
GrabOptions options)
{
// get resources
IList <IGrabbed> grabs;
if (doc.Streams.Count > 0)
{
grabs = GrabStreams(uri, doc);
}
else if (doc.Segments.Count > 0)
{
grabs = GrabSegments(uri, doc);
}
else
{
grabs = null;
}
// make result
var result = new GrabResult(uri, grabs);
if (options.Flags.HasFlag(GrabOptionFlag.Decrypt) && doc.Key != null)
{
UpdateDecryptionMethod(result, doc.Key);
}
return(Task.FromResult(result));
}
private IList <IGrabbed> GrabStreams(Uri originalUri, PlaylistDocument doc)
{
var list = new List <GrabbedStreamMetadata>();
foreach (var stream in doc.Streams)
{
var uri = new Uri(originalUri, stream.Uri);
var g = new GrabbedStreamMetadata(originalUri, uri, stream.Name,
stream.Resolution, stream.Bandwidth, PlaylistFormat, OutputFormat, new ResolvableStream(uri, stream));
list.Add(g);
}
return(list.OrderByDescending(s => s.Resolution.Height).ToList <IGrabbed>());
}
private IList <IGrabbed> GrabSegments(Uri originalUri, PlaylistDocument doc)
{
var list = new List <IGrabbed>();
var segments = new List <MediaSegment>();
var totalDuration = TimeSpan.Zero;
foreach (var segment in doc.Segments)
{
totalDuration += segment.Duration;
var uri = new Uri(originalUri, segment.Uri);
segments.Add(new MediaSegment(segment.Title, uri, segment.Duration));
}
var g = new GrabbedStream(originalUri, originalUri, totalDuration, segments);
list.Add(new GrabbedStreamMetadata(originalUri, originalUri, "Media", null, 0, PlaylistFormat, OutputFormat,
new ResolvableStream(g)));
return(list);
}
public override async Task <GrabResult> GrabAsync(Uri uri, CancellationToken cancellationToken, GrabOptions options)
{
using var client = HttpHelper.GetClient(uri);
using var response = await client.GetAsync(uri, cancellationToken).ConfigureAwait(false);
response.EnsureSuccessStatusCode();
using var responseStream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
var doc = new PlaylistDocument();
try
{
await doc.LoadAsync(responseStream).ConfigureAwait(false);
}
catch (PlaylistDocumentLoadException loadException)
{
throw new GrabException("Failed to load the M3U8 playlist.", loadException);
}
return(await GrabAsync(uri, doc, cancellationToken, options).ConfigureAwait(false));
}
