private static R <PlayResource, LocalStr> ParseLiveData(AudioResource resource, JsonPlayerResponse parsed)
{
var webListResponse = WebWrapper.GetResponse(new Uri(parsed.streamingData.hlsManifestUrl), response =>
{
return(AudioTags.M3uReader.TryGetData(response.GetResponseStream()).OkOr(null));
});
if (webListResponse.Ok)
{
const string AacHe = "mp4a.40.5";
const string AacLc = "mp4a.40.2";
var webList = webListResponse.Value;
var streamPref = from item in webList
let codecs = item.StreamMeta != null?StreamCodecMatch.Match(item.StreamMeta).Groups[1].Value : ""
let codecPref = codecs.Contains(AacLc) ? 0
: codecs.Contains(AacHe) ? 1
: 2
let bitrate = item.StreamMeta != null?int.Parse(StreamBitrateMatch.Match(item.StreamMeta).Groups[1].Value) : int.MaxValue
orderby codecPref, bitrate ascending
select item;
var streamSelect = streamPref.FirstOrDefault();
if (streamSelect != null)
{
if (resource.ResourceTitle == null)
{
resource = resource.WithTitle(StringNormalize.Normalize(parsed.videoDetails.title));
}
return(new PlayResource(streamSelect.TrackUrl, resource));
}
}
return(new LocalStr(strings.error_media_no_stream_extracted));
}
private R <PlayResource, LocalStr> ResolveResourceInternal(AudioResource resource)
{
if (!WebWrapper.DownloadString(out string resulthtml, new Uri($"https://www.youtube.com/get_video_info?video_id={resource.ResourceId}")))
{
return(new LocalStr(strings.error_net_no_connection));
}
var videoTypes = new List <VideoData>();
var dataParse = ParseQueryString(resulthtml);
if (dataParse.TryGetValue("player_response", out var playerData))
{
var parsed = JsonConvert.DeserializeObject <JsonPlayerResponse>(playerData[0]);
Log.Debug("Extracted data: {@playerData}", parsed);
if (parsed?.videoDetails != null)
{
if (resource.ResourceTitle == null)
{
resource = resource.WithTitle(StringNormalize.Normalize(parsed.videoDetails.title));
}
bool isLive = parsed.videoDetails.isLive ?? false;
if (isLive && parsed.streamingData?.hlsManifestUrl != null)
{
return(ParseLiveData(resource, parsed));
}
else if (isLive)
{
Log.Warn("Live stream without hls stream data");
}
ParsePlayerData(parsed, videoTypes);
}
}
if (dataParse.TryGetValue("url_encoded_fmt_stream_map", out var videoDataUnsplit))
{
ParseEncodedFmt(videoDataUnsplit, videoTypes);
}
if (dataParse.TryGetValue("adaptive_fmts", out videoDataUnsplit))
{
ParseAdaptiveFmt(videoDataUnsplit, videoTypes);
}
// Validation Process
if (videoTypes.Count <= 0)
{
return(new LocalStr(strings.error_media_no_stream_extracted));
}
int codec = SelectStream(videoTypes);
if (codec < 0)
{
return(new LocalStr(strings.error_media_no_stream_extracted));
}
var result = ValidateMedia(videoTypes[codec]);
if (!result.Ok)
{
return(result.Error);
}
if (resource.ResourceTitle == null)
{
resource = resource.WithTitle($"<YT - no title : {resource.ResourceId}>");
}
return(new PlayResource(videoTypes[codec].Link, resource));
}
private static R <PlayResource, LocalStr> YoutubeDlWrapped(AudioResource resource)
{
R <JsonYtdlDump, LocalStr> GetResourceInfo(string id)
{
var result = YoutubeDlHelper.GetSingleVideo(id);
if (!result.Ok)
{
return(result.Error);
}
return(result.Value);
}
Log.Debug("Falling back to youtube-dl!");
// Get first try information
var resourceInfo = GetResourceInfo(resource.ResourceId);
if (!resourceInfo.Ok)
{
return(resourceInfo.Error);
}
var response = resourceInfo.Value;
var formats = YoutubeDlHelper.SortBest(response.formats);
if (formats.Count == 0)
{
return(new LocalStr(strings.error_ytdl_empty_response));
}
string url = formats[0]?.url;
Log.Trace("Found the following audio codec possibilities:");
foreach (var f in formats)
{
if (f.acodec != "none")
{
Log.Trace("Result: abr={0} acodec={1} vcodec={2} url={3}", f.abr, f.acodec, f.vcodec, f.url);
}
}
Log.Trace("Using version with {0}kbit/s", formats[0]?.abr);
// Resource is broken
if (string.IsNullOrEmpty(url))
{
return(new LocalStr(strings.error_ytdl_empty_response));
}
// Check if URL actually works. If not, return an error.
var resp = new HttpClient().GetAsync(url, HttpCompletionOption.ResponseHeadersRead).Result;
if (!resp.IsSuccessStatusCode)
{
Log.Info("Download URL generated by youtube-dl responds with non-200 status code: " + resp.StatusCode);
return(new LocalStr("Youtube-URL for song is broken."));
}
if (resource.ResourceTitle == null)
{
resource = resource.WithTitle(StringNormalize.Normalize(response.title) ?? $"Youtube-{resource.ResourceId}");
}
Log.Debug("youtube-dl succeeded!");
return(new PlayResource(url, resource));
}
