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• FFMPEG Webvtt m3u8 download into single vtt file, ignore the "X-TIMESTAMP-MAP=MPEGTS=" (timestamp sync problem)

  5 janvier 2021, par Panda Xia

  I want to download the subtitle of a video, it has separated m3u8 file for subtitle :

  


  webvtt source in m3u8 format : https://sdn-global-streaming-cache.3qsdn.com/9378/files/19/05/1199332/Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes.ism/Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes-textstream_deu=1000.m3u8

  


  looks like :

  


  #EXTM3U
#EXT-X-VERSION:4
## Created with Unified Streaming Platform(version=1.9.5)
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MEDIA-SEQUENCE:1
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-TARGETDURATION:989
#USP-X-TIMESTAMP-MAP:MPEGTS=900000,LOCAL=1970-01-01T00:00:00Z
#EXTINF:24.72, no desc
Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes-textstream_deu=1000-1.webvtt
#EXTINF:2.56, no desc
Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes-textstream_deu=1000-13.webvtt
#EXTINF:50.88, no desc
Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes-textstream_deu=1000-14.webvtt
#EXTINF:3.079, no desc
Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes-textstream_deu=1000-40.webvtt
#EXTINF:60.401, no desc
....


  


  Then use the command to download the multiple webvtts into one vtt file "EN.vtt" :

  


  ffmpeg -i  "https://sdn-global-streaming-cache.3qsdn.com/9378/files/19/05/1199332/Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes.ism/Dqt6jZBkvX2nLyY4CGhxmpK89PbQRFV7-drm-aes-textstream_deu=1000.m3u8"  "DE.vtt"


  


  In output "DE.vtt" the X-TIMESTAMP-MAP=MPEGTS:xxxxxx,LOCAL:00:00:00.000 from each webvtt file (webvtt in m3u8) are ignored.

  


  so that the time Synchronisation is broken, the start time of each Segment always begins from 00:00:00, looks like :

  


  WEBVTT

00:00.000 --> 00:02.560
So viel Macht.

00:00.000 --> 00:03.079
Was er sagte.

00:00.000 --> 00:04.680
oder
die Schönheit

00:00.000 --> 00:01.440
Er sagte immer:

00:00.000 --> 00:03.840
Auf seinen Klang 

00:00.000 --> 00:07.519
Seine Paranoia.


  


  Could ffmpeg support the relative time stamp to convert into absolute time stamp ?
Or use other method to download perfect webvvt file ?

  


• unable to download youtube video portion via extracted video URL from youtube-dl and ffmpeg

  29 juillet 2020, par karma

  I've read the following link, and did :

  


  youtube-dl --rm-cache-dir


  


  But it still give me 403 forbidden.

  


  This is my process :

  


  youtube-dl -g https://www.youtube.com/watch?v=kGDgGsrA78s


  


  It gave me a result like this :

  


  https://r2---sn-uigxxi0ujipnvo-q2ne.googlevideo.com/videoplayback?expire=1596034295&ei=lzghX6SHKMOD8QPlx5SQBw&ip=223.255.228.87&id=o-AK6cYo88zJXe5Xb4y1QsXspuRnVCy-zPFpMaHcAaTQ-_&itag=137&aitags=133%2C134%2C135%2C136%2C137%2C160%2C242%2C243%2C244%2C247%2C248%2C278&source=youtube&requiressl=yes&mh=DA&mm=31%2C29&mn=sn-uigxxi0ujipnvo-q2ne%2Csn-npoe7nlz&ms=au%2Crdu&mv=m&mvi=2&pl=24&initcwndbps=173750&vprv=1&mime=video%2Fmp4&gir=yes&clen=456970484&dur=1389.955&lmt=1521825834085900&mt=1596012582&fvip=5&keepalive=yes&fexp=23883098&c=WEB&sparams=expire%2Cei%2Cip%2Cid%2Caitags%2Csource%2Crequiressl%2Cvprv%2Cmime%2Cgir%2Cclen%2Cdur%2Clmt&sig=AOq0QJ8wRgIhAMvZrHYvC1YrkvtARzhjyD8dnMnlefobGrOFM1rX6QZPAiEAqqeIsKdZ19y-SlHf-l8YwTx2yYbo1p5sFlVoC87oXEQ%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgAIwAVMPrcMhAL476uN_ZzWj8vKPGGW58KCpHBYBsKeICICRgVWgthNvgbGl8VgQwscjJ0n8ib4XBNjRxRgSg2T5r&ratebypass=yes
https://r2---sn-uigxxi0ujipnvo-q2ne.googlevideo.com/videoplayback?expire=1596034295&ei=lzghX6SHKMOD8QPlx5SQBw&ip=223.255.228.87&id=o-AK6cYo88zJXe5Xb4y1QsXspuRnVCy-zPFpMaHcAaTQ-_&itag=140&source=youtube&requiressl=yes&mh=DA&mm=31%2C29&mn=sn-uigxxi0ujipnvo-q2ne%2Csn-npoe7nlz&ms=au%2Crdu&mv=m&mvi=2&pl=24&initcwndbps=173750&vprv=1&mime=audio%2Fmp4&gir=yes&clen=22077901&dur=1390.039&lmt=1521818817521456&mt=1596012582&fvip=5&keepalive=yes&fexp=23883098&c=WEB&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cvprv%2Cmime%2Cgir%2Cclen%2Cdur%2Clmt&sig=AOq0QJ8wRQIhANHMaZK4jYg7p4t2dID3d21VRv18I1nhBtXqYRSZo0C7AiAEjO8LwjhXeNQiKqdiZFQ_DsHuXT4rgvPnNQhaDGj9hg%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgAIwAVMPrcMhAL476uN_ZzWj8vKPGGW58KCpHBYBsKeICICRgVWgthNvgbGl8VgQwscjJ0n8ib4XBNjRxRgSg2T5r&ratebypass=yes


  


  The result gave me two URL, so I only copy the first line and since what I want is just to copy a few minutes video portion - so in ffmpeg :

  


  ffmpeg -ss 00:00:15.00 -i https://r2---sn-uigxxi0ujipnvo-q2ne.googlevideo.com/videoplayback?expire=1596034295&ei=lzghX6SHKMOD8QPlx5SQBw&ip=223.255.228.87&id=o-AK6cYo88zJXe5Xb4y1QsXspuRnVCy-zPFpMaHcAaTQ-_&itag=140&source=youtube&requiressl=yes&mh=DA&mm=31%2C29&mn=sn-uigxxi0ujipnvo-q2ne%2Csn-npoe7nlz&ms=au%2Crdu&mv=m&mvi=2&pl=24&initcwndbps=173750&vprv=1&mime=audio%2Fmp4&gir=yes&clen=22077901&dur=1390.039&lmt=1521818817521456&mt=1596012582&fvip=5&keepalive=yes&fexp=23883098&c=WEB&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cvprv%2Cmime%2Cgir%2Cclen%2Cdur%2Clmt&sig=AOq0QJ8wRQIhANHMaZK4jYg7p4t2dID3d21VRv18I1nhBtXqYRSZo0C7AiAEjO8LwjhXeNQiKqdiZFQ_DsHuXT4rgvPnNQhaDGj9hg%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgAIwAVMPrcMhAL476uN_ZzWj8vKPGGW58KCpHBYBsKeICICRgVWgthNvgbGl8VgQwscjJ0n8ib4XBNjRxRgSg2T5r&ratebypass=yes -t 00:00:10.00 -c copy out.mp4


  


  But then the result in command prompt is like this :

  


  ffmpeg version N-93300-g96451477b9 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20190212
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 26.100 / 56. 26.100
  libavcodec     58. 47.103 / 58. 47.103
  libavformat    58. 26.101 / 58. 26.101
  libavdevice    58.  6.101 / 58.  6.101
  libavfilter     7. 48.100 /  7. 48.100
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
  libpostproc    55.  4.100 / 55.  4.100
[https @ 0000020137c895c0] HTTP error 403 Forbidden
https://r2---sn-uigxxi0ujipnvo-q2ne.googlevideo.com/videoplayback?expire=1596034295: Server returned 403 Forbidden (access denied)
'ei' is not recognized as an internal or external command,
operable program or batch file.
'ip' is not recognized as an internal or external command,
operable program or batch file.
'id' is not recognized as an internal or external command,
operable program or batch file.
.... and so on....


  


  BTW, I've also tried to copy the second URL, still 403 error.
  
I also tried to copy both URL, still 403 error.

  


  On the other hand, when I tried to paste the URL into Internet Download Manager,
  
IDM directly recognized the URL and I can download the file via IDM.

  


  Is there a way to resolve this ?
  

  


  Any kind of respond would be greatly appreciated.
  
Thank you in advanced.

  


  EDIT :
I'm very sorry for my ignorant.
  
It turn out I need to put apostrophe at the beginning and at the end of the URL :).

  


  Dear moderator, please close this thread.
  
Thank you for you all.

  


• FFmpeg does not download hls stream

  26 juillet 2020, par mrlucasrib

  I am trying to download a video from an m3u8 file. I used the chrome dev tools network analyzer and copied the address from the m3u8 file.

  


  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:6
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-KEY:METHOD=AES-128,URI="key://pi1CcgormCfrBeHFonx1SjYyNREActOy9x5fdSmTcQ74q9gDltGOMVTb2KT7jebRYJNU9skhE1wPp3VBgsIQhutzL9nlU7CwifAHVRX63E8abzo+8daPodXlUvN8qlXDKE8I2w37kc+UqyTG86U3Kg==",IV=0x157c77a2bc4ce357dfb893e2c01f8561
#EXTINF:6.0000,
https://contentplayer.website.com/video/4vqnGjj0L3/hls/360/segment-0.ts
....
#EXTINF:1.0667,
https://contentplayer.website.com/video/4vqnGjj0L3/hls/360/segment-219.ts
#EXT-X-ENDLIST 


  


  So I put in ffmpeg and got a 403 forbidden error

  


  [https @ 0x55c2fae84d80] HTTP error 403 Forbidden
[crypto @ 0x55c2fb11ebc0] Unable to open resource: https://contentplayer.website.com/video/4vqnGjj0L3/hls/540/segment-1.ts
[hls @ 0x55c2fae807c0] Failed to open segment 1 of playlist 0
...


  


  I thought it could be because of some missing http header, so I copied the cURL command from devtools. (I copied from the request of a segment, in which I had the cloudfront authorization key)

  


  I took all the headers from cURL and added them to ffmpeg.

  


  ffmpeg -allowed_extensions ALL -headers 'User-Agent: ...'
-headers 'Accept: */*' 
-headers 'Accept-Language: ...' 
-headers 'Referer: https://player....com/' 
-headers 'Origin: https://player....com' 
-headers 'Connection: keep-alive'
-headers 'Cookie: CloudFront-Policy=..; CloudFront-Signature=...; CloudFront-Key-Pair-Id=..; hotid=..; hmVlcIntegration=..' -headers 'Pragma: no-cache' -headers 'Cache-Control: no-cache' -headers 'TE: Trailers' 
-protocol_whitelist file,crypto,https,tcp,tls -i esse.m3u8  -map 0 -c copy output.mkv  -i link.m3u8  -map 0 -c copy output.mkv


  


  However, I still receive the 403 forbidden error. When I execute the cURL command it downloads the contents of the fragment. My hypothesis was that because it is about HTTP2 the headers were not sent after the first connection, but all the important headers were added.
other ways of doing this process are also welcome