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• Is it possible to download files (MP4) from external server and convert it to MP3 in NodeJS

  19 mai 2021, par GrayGalaxy

  I am currently working on a chrome extension to download songs from JioSaavn.com. In my implementation I use an Vercel instance as a prox. This is a workaround for CORS error in the extension. The server code is shown as below.

  


  const axios = require('axios')
module.exports = (req, res) => {
    res.setHeader('Access-Control-Allow-Origin', '*')
    res.setHeader('Cache-Control', 's-maxage=300, stale-while-revalidate')
    const URL = req.url // requested url
    // get array buffer
    if (url === '/') return res.redirect('https://github.com/GrayGalaxy/jiosaavn-downloader')

    let server_url = `https://snoidcdnems02.cdnsrv.jio.com/c.saavncdn.com/${URL}`
    axios.get(src_url, { responseType: 'arraybuffer' })
        .then(r => r.data)
        .then(result => res.send(result))
        .catch(() => {
            res.status(400).send('Cannot access the requested URL')
        })
    }
}



  


  This outputs a MP4 file (just with audio). As for example if you put /983/01100b84f61ca8b3a0432f12c564be8e_96.mp4 as the URL parameter it will output as MP4.

  


  Now I want to convert that response MP4 to a MP3 file. I tried ffmpeg, fluent-ffmpef and many other implementation. Most of them dose not support ArrayBuffer as an input (I think) it doesn't provide any output as expected. Or it might possible Vercel does not allow file-browser.

  


  Please give a solution to that.

  


• Youtube-dl cannot read various set on batch script

  18 novembre 2019, par Al UrbaseR Blongtous

  I created an batch-script that positioned with youtube-dl and ffmpeg. I set several set to put URL and Video/Audio ID. Here my script that I simplified

  @echo off
  
  cd /d %root%\YT
  
  color 0a
  
  title Youtube Downloader
  
  setlocal enableDelayedExpansion
  
  set q=^"
  
  color 0a
  
  
  
  :submenu
  
  echo Please enter URL.
  
  set /p f1="URL: " 
  
  echo Checking ID...
  
  youtube-dl -F %f1%
  
  ping localhost -n 2 >nul
  
  goto menu
  
  
  
  :menu
  
  echo.
  
  echo Script created by UrbaseR
  
  echo ___________________________________________________________
  
  echo.
  
  echo                          MENU
  
  echo ___________________________________________________________
  
  echo OS Windows - %ComputerName%
  
  echo.
  
  echo M E N U
  
  echo Press 1 to Download Best version 
  
  echo Press 2 to Download Custom version + convert
  
  echo Press 3 to Exit
  
  
  
  set /p you=">"
  
  if %you%==1 goto 1
  
  if %you%==2 goto 2
  
  if %you%==3 goto 3
  
  
  
  cls
  
  echo *********************************
  
  echo Sorry invalid number!
  
  echo *********************************
  
  ping localhost -n 2 >nul
  
  goto menu
  
  
  
  :1
  
  echo Downloading...
  
  youtube-dl -f best %f1%
  
  echo.
  
  echo Done
  
  ping localhost -n 2 >nul
  
  cls
  
  goto submenu
  
  
  
  :2
  
  set /p id1="Insert Video ID: "
  
  set /p id2="Insert Audio ID: "
  
  echo Downloading Video..
  
  youtube-dl -f %id1% -ciw -o "vid.%(ext)s" -v --write-sub %f1%
  
  echo.
  
  echo Video Done
  
  ping localhost -n 2 >nul
  
  echo Downloading Audio..
  
  youtube-dl -f %id2% -ciw -o "aud.%(ext)s" -v %f1%
  
  echo.
  
  echo Audio Done
  
  ping localhost -n 2 >nul
  
  echo Converting Video
  
  ffmpeg -i "vid.%(ext)s" -i "aud.%(ext)s" -c:v copy -c:a aac -strict experimental "input.mkv"
  
  echo Converting Done
  
  ping localhost -n 4 >nul
  
  cls
  
  goto submenu
  
  
  
  :3
  
  exit

  First and third option execute successfully. Second option will appear the message like this :

  Usage : youtube-dl [OPTIONS] URL [URL...]
  youtube-dl : error : You must provide at least one URL.

  Type youtube-dl —help to see a list of all options.

  Note : Since I stuck on first and second stage of youtube-dl, ffmpeg may not work (I have not tested it yet).

  Can you help me ?

• Intel QuickSync error : Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  30 novembre 2018, par Arie Syamsudin

  I want to make IPTV with a topology like this :

  Restream / source -----> IPTV server -----> User

  The problem at the moment is the question of bandwidth that is still large.

  Finally I announced by IPTV software providers to transcode with Intel QuickSync video and FFmpeg.

  I followed the steps given by the software provider at the following link :
  http://www.ezhometech.com/document/intel_ffmpeg.txt

  Which comes from the link below :
  https://www.intel.com/content/dam/www/public/us/en/documents/white-paper...

  I installed IPTV software on a laptop with an Intel processor, chipset and VGA.

  [root@iptv ffmpeg-4.1]# **lspci**
  
  00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
  
  00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
  
  00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
  
  00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
  
  00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
  
  00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
  
  00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
  
  00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
  
  00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
  
  00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 05)
  
  00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
  
  01:00.0 Ethernet controller: Qualcomm Atheros AR8152 v2.0 Fast Ethernet (rev c1)
  
  02:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
  
  
  
  [root@iptv ffmpeg-4.1]# **lspci -nn -s 0:02.0**
  
  00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)

  but when I do a transcoding test, an error always appears :
  Error initializing output stream 0:0 — Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height.

  Error details :
  https://paste.fedoraproject.org/paste/vp9XIzbeOuyXRuLBlLfSng

  FFmpeg log :

  ./ffmpeg  -hwaccel qsv -i http://premium-play.org:8000/domm0H56Cj/q3ODLP6C16/2826 -vcodec h264_qsv -acodec copy -b:v 1200K -f mpegts udp://127.0.0.1:9011?pkt_size=1316
  
  ffmpeg version 3.2.12 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
  
    configuration: --enable-libmfx --enable-nonfree
  
    libavutil      55. 34.101 / 55. 34.101
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.101 / 57. 56.101
  
    libavdevice    57.  1.100 / 57.  1.100
  
    libavfilter     6. 65.100 /  6. 65.100
  
    libswscale      4.  2.100 /  4.  2.100
  
    libswresample   2.  3.100 /  2.  3.100
  
  Input #0, mpegts, from 'http://premium-play.org:8000/domm0H56Cj/q3ODLP6C16/2826':
  
    Duration: N/A, start: 30200.274878, bitrate: N/A
  
    Program 1
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 100 tbc
  
      Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 125 kb/s
  
  libva info: VA-API version 1.0.0
  
  libva info: va_getDriverName() returns 0
  
  libva info: User requested driver 'iHD'
  
  libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so
  
  libva info: Found init function __vaDriverInit_1_0
  
  libva info: va_openDriver() returns 0
  
  [h264_qsv @ 0x2a89500] Selected ratecontrol mode is not supported by the QSV runtime. Choose a different mode.
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_qsv))
  
    Stream #0:1 -> #0:1 (copy)
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height