public static async Task <FFProbeResult> Probe(string filename)
{
ExternalProgramExecution.RunProgramReturnValue retval = await VodArchiver.ExternalProgramExecution.RunProgram(
"ffprobe",
new string[] {
"-show_format",
"-show_streams",
"-print_format", "json",
filename
}
);
JObject jo = JObject.Parse(retval.StdOut);
var jsonFormat = jo["format"];
string path = System.IO.Path.GetFullPath(filename);
DateTime timestamp = System.IO.File.GetCreationTimeUtc(filename);
ulong filesize = (ulong)jsonFormat["size"];
ulong bitrate = (ulong)jsonFormat["bit_rate"];
TimeSpan duration = TimeSpan.FromSeconds((double)jsonFormat["duration"]);
List <FFProbeStream> streams = new List <FFProbeStream>();
foreach (JToken jsonStream in jo["streams"])
{
streams.Add(new FFProbeStream()
{
Index = (uint)jsonStream["index"],
CodecTag = Util.ParseDecOrHex(jsonStream["codec_tag"].ToString()),
CodecType = jsonStream["codec_type"].ToString(),
Duration = jsonStream["duration"] != null ? TimeSpan.FromSeconds((double)jsonStream["duration"]) : (TimeSpan?)null,
Framerate = jsonStream["r_frame_rate"] != null ? ParseFramerate((string)jsonStream["r_frame_rate"]) : 0.0f,
});
}
return(new FFProbeResult()
{
Path = path,
Timestamp = timestamp,
Filesize = filesize,
Bitrate = bitrate,
Duration = duration,
Streams = streams,
});
}
public static async Task <List <IVideoInfo> > RetrieveVideosFromParameterString(string parameter, bool flat, string usernameIfNotInJson)
{
string raw = "";
try {
List <string> args = new List <string>();
if (flat)
{
args.Add("--flat-playlist");
}
args.Add("--ignore-errors");
args.Add("-J");
args.Add(parameter);
ExternalProgramExecution.RunProgramReturnValue data = await ExternalProgramExecution.RunProgram(@"yt-dlp", args.ToArray());
raw = data.StdOut;
} catch (ExternalProgramReturnNonzeroException ex) {
// try anyway, this gets thrown when a video is unavailable for copyright reasons
raw = ex.StdOut;
}
var json = JObject.Parse(raw);
var entries = json["entries"];
List <IVideoInfo> list = new List <IVideoInfo>();
foreach (var entry in entries)
{
try {
var d = ParseFromJson(entry, flat, usernameIfNotInJson);
if (d.success)
{
list.Add(d.info);
}
} catch (Exception ex) {
Console.WriteLine("Failed to parse video from Youtube: " + ex.ToString());
}
}
return(list);
}