[downloader/hlsnative] Resuming encrypted HLS streams leads to broken files #11015
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Both work fine for me. |
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it doesn't work at my end. Especially if for some reasons it stops, I have to start at beginning otherwise I just get - What it should give - This was there sometime back, you can see the difference yourself. |
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I am also experiencing this issue. Downloading a youtube video and attempting to play this on VLC Ubuntu will only have a black screen and no audio. However, when using the -k option (keep), both the audio (.mp4) and video (.webm) files play. I assume the error lays somewhere during combining of the files. |
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@bobbybluff I guess that's because you're using avconv. Try to install ffmpeg and run youtube-dl with @shirishag75 Which player are you using? It's most likely player's problem on unable to handle mpeg-ts segments. If you have no choice on which player to use, install ffmpeg and replace |
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@yan12125 Thank you for your reply. I attempted using ffmpeg but still encounter same issue. Here's the output:
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Just tried it and VLC 2.2.4 plays fine for me. |
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Just tried it with SMPlayer and it works. Issue lies with VLC 2.2.1. |
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OK let's wait for @shirishag75 and see what's his problem |
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hi all, I was able to download it but after many tries. I am on Debian testing/strech and avconv is no longer an option. It is all ffmpeg now - The core issue is that re-downloading the video from where it stopped results in no play of the video. I use mpv as my preferred movie player as it doesn't take much memory, is good with kbd shortcuts and is out of the way - Hope this info. clears the issues a little bit. |
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@shirishag75 First please paste the output of this command: And can you describe more on "can't play"? I tried a 3.1MB partial video with mpv 0.21.0 and it plays fine. By the way, mediainfo (version 0.7.90) shows correct info even for partial files: I guess there's something wrong in downloading. By the way, what's your version of python-crypto? This package is required to download encrypted streams provided by hotstar with youtube-dl's builtin downloader. |
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First things first, my version of python-crypto is - Now output of the command as you shared is - While I'm able to view the partial file. What happens is at the very end. Let me explain the way I see it - when the Now if I interrupt the downloading, say lights go out or anything, in perfect scenario, using Does this make some more sense ? |
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well for these are there are 416 pieces of the file (fragments) , the downloader needs each file in sequence when all the 416 pieces are completed so that it can stitch/append all the files. the issue you are facing is due to network instability (major issue in your and my country) so a piece of file gets partially downloaded so it fails to stitch properly, even though all fragments are there. So i would recommend is to download via an external downloader or first play it externally through vlc |
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I understand what you are saying. I do follow that the 'stitching' process may have some issue/bug. I don't know which is the element where that part needs to be followed up . Any pointers will be good . I don't understand partially though your last statement, the part about
let's say there is a stiching issue. If it is, is there a way that vlc can fix it rather than using mpv ? |
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use the command wget -O output-filename.mp4 $( youtube-dl -g http://www.hotstar.com/tv/savdhaan-india/363/the-promiscuous-wives/1000153444 ) |
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@siddht1 encrypted hls streams are not that easy |
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that is the point that I was trying to tell/share. Btw this again failed at my end - In vlc it just goes to a loop and gives In mediainfo and mpv you get to know what the issue is - and As can be seen it is the 'stiching' part which is at fault somewhere. |
yan12125
changed the title
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@shirishag75 Confirmed the bug. Thanks for the detailed steps. |
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@yan12125 yes i saw that too output-filename.mp4 100%[===================>] 99.40K 482KB/s in 0.2s 2016-11-13 22:56:45 (482 KB/s) - ‘output-filename.mp4’ saved [101785/101785] so surely the problem is when retriving files , got the problem change the user agent to an android mobile phone , hotstar is blocking the stream |
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@shirishag75 even though its a bug. let me help you. so the downloader sees that it has 26 characters and a,z are in front and back , mid is n is 13 so it stiches it as it thinks its the right pieces even though there is an extra g and there`s no y, but it cant confirm as there is not error detection . this is whats actually happening/occuring |
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@yan12125 is there anyway in youtube-dl where a checksum/crc can be done directly |
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@siddht1 I got this, I am asking as for most people they would just give up. If there is no error-detection, then it is upto the developers to fix it and they can only do it if we highlight our issues and this is reproducible by them. |
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@shirishag75 i get you , and yes the developers can fix it , especially who are dealing for youtube-dl from several years. But i am to a developer (not for youtube-dl ), but for java calling of this program #10975 , have faced issue as porting also needs work. this check can be done , so i can surely help if nedded. just checking crc/checksum can be done for an on line file |
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Anybody working on this .... ping ? |
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Now twice the video has been downloaded but each time I have not been able to view the video either under mpv or vlc but when it is in .part I can play the video. It is only when it is complete, it doesn't play. I suspect some sort of corruption happening.
This is the ouput I get while viewing the .part file via ffprobe -
Look forward to know more.
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