AudioDownloader does't work

[ChriChri4]

Hi guys!

I have a problem when I try to extract the audio from a Youtube's video. I tried with many videos but I got the same error: Exception System.InvalidOperationException' in System.Core.dll This error appears at the start of the audioDownloader.Execute() when I try to create a VideoInfo object. I tried with the example code but I found the error in these rows:

`VideoInfo video = videoInfos

            .Where(info => info.CanExtractAudio)

            .OrderByDescending(info => info.AudioBitrate)

            .First();`

Someone have an idea for the problem's solution?

Thanks in advance

ChriChri4

[kvoeten]

Encountering the same issue. It seems to come from the info object not containing these items. (CanExtractAudio/AudioBitrate) something is probably going wrong when creating this object for audio files. (Video download works totally fine)

[jprzimba]

I've same issue.... it can't extrack audios and freezes my app

[ghost]

Yep. I am having the exact same issue. YoutubeExtractor is very weak without this feature. Does any one managed to fix this ?

[jprzimba]

I'm using a method that i've to use ffmpeg.exe My method is download video and execute ffmpeg.exe with arguments of video and it extract audio and delete video That is my solution

[ChriChri4]

@tryller

Yes, I tried your method 2 days ago and it works, but I have another problem now: in very more videos that I try to download I have this issue:

'System.Net.WebException' in System.dll Remote server error: (403) forbidden I found only two videos that don't give me this error. I tried to disable the firewall of Windows but doesn't work. Any ideas?

Thank you

[ghost]

@tryller ..I have also tried above methods,But its not working..It is giving 403 forbidden,For example I have extracted this url using your project dll(not from nuget),It is giving 403 error.. https://r9---sn-h557sn7r.googlevideo.com/videoplayback?keepalive=yes&itag=251&ei=hPueWLqWLdK4ogP92pXoDQ&sparams=clen,dur,ei,gcr,gir,id,initcwndbps,ip,ipbits,itag,keepalive,lmt,mime,mm,mn,ms,mv,pl,requiressl,source,upn,expire&requiressl=yes&mt=1486814065&key=yt6&initcwndbps=517500&ipbits=0&pl=24&lmt=1449637525229569&expire=1486835684&source=youtube&upn=GhuUbb0ZRWU&gcr=in&mm=31&gir=yes&mn=sn-h557sn7r&id=o-APj_BKI3H_wcIeWAeNqc1zJwlsGdG08OFpWoYL5ycNZb&dur=258.041&mime=audio/webm&mv=m&ms=au&clen=4296050&ip=103.6.159.156&signature=C6369615F2AAE31447843831E3ABCDE3DA665380B4.A18DB620D22A2B9C26282E9343DC0F8246473010&ratebypass=yes

[Sicryption]

Problem still exists.

[fuzzewuzze]

The problem if you look at all the videos you get back from videoInfo is that every item in the array has CanExtractAudio as false, so it errors out because none of the items meet its criteria. Im not sure why everything now says it cant extract audio.

[typetrait]

I may be wrong but the CanExtractAudio property from VideoInfo just returns true if the VideoType is equals to VideoType.Flash and it never returns as flash, causing it to always be false making the query return nothing.

Check #191.