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• How to download .m3u8 in once time

  11 octobre 2024, par Nabi K.A.Z.

  I have a .m3u8 file on remote host, with contain fixed numbers of chunk .ts file name, and not stream :

  



  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:11
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:9.736,
media_0.ts
#EXTINF:9.96,
media_1.ts
#EXTINF:10.0,
media_2.ts
#EXTINF:10.0,
media_3.ts
#EXTINF:10.0,
media_4.ts
#EXTINF:10.2,
media_5.ts
#EXTINF:10.0,


  



  When I use this command :

  



  # ffmpeg -i "http://example.com/chunklist.m3u8" file.mp4

frame=  582 fps=9.4 q=28.0 size=    1536kB time=00:00:23.21 bitrate= 542.1kbits/s dup=2 drop=4 speed=0.375x


  



  It works. But It get frame by frame video and very long time needed. (It takes time almost to playback the video.)

  



  But since the path of all the .ts files are known. (http://example.com/media_0.ts, http://example.com/media_1.ts, ...) There must be a way to get and merge them all at the same time.

  



  But How in ffmpeg directly ?!

  



  EDIT (try a solution) :

  



  For one solution, I know how can concatenation files with ffmpeg.

  



  ffmpeg -i "concat:0.ts|1.ts|2.ts|3.ts|4.ts|5.ts" -c copy output.mp4


  



  This ffmpeg command was great, and works in less 1 sec time !

  



  So try to download all .ts files with CURL with this command :

  



  curl \
http://example.com/media_0.ts -o 0.ts \
http://example.com/media_1.ts -o 1.ts \
http://example.com/media_2.ts -o 2.ts \
http://example.com/media_3.ts -o 3.ts \
http://example.com/media_4.ts -o 4.ts \
http://example.com/media_5.ts -o 5.ts


  



  But you can see result :

  



    % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  687k  100  687k    0     0  75108      0  0:00:09  0:00:09 --:--:-- 74111
100  652k  100  652k    0     0  59404      0  0:00:11  0:00:11 --:--:-- 53400
100  673k  100  673k    0     0  48675      0  0:00:14  0:00:14 --:--:-- 55781
100  657k  100  657k    0     0  63573      0  0:00:10  0:00:10 --:--:-- 62494
100  671k  100  671k    0     0  39019      0  0:00:17  0:00:17 --:--:-- 40863
100  692k  100  692k    0     0  63480      0  0:00:11  0:00:11 --:--:-- 80049


  



  See, total download time was 72 sec, while the total duration of all parts is 59 sec ! that this time is very long !

  



  So sorry, download all parts and then concat that, was not good solution.

  



  EDIT 2

  



  I try for another .m3u8 file on the another server with difference URL :

  



  Download and concat together :

  



  ffmpeg -i "concat:\
http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_0.ts|\
http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_1.ts|\
http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_2.ts|\
http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_3.ts|\
http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_4.ts|\
http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_5.ts\
" -c copy -y output.ts


  



  Another command with input.txt URLs file.

  



  ffmpeg -f "concat" -i "input.txt" -c copy -y output.ts


  



  input.txt file :

  



  file 'http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_0.ts'
file 'http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_1.ts'
file 'http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_2.ts'
file 'http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_3.ts'
file 'http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_4.ts'
file 'http://184.72.239.149/vod/smil:BigBuckBunny.smil/media_w442897525_b560000_5.ts'


  



  Or this command some time if needed :

  



  ffmpeg -f "concat" -safe "0" -protocol_whitelist "file,http,https,tcp,tls" -i "input.txt" -c copy -y output.ts


  



  Finally, for that download speed was good, MAYBE my server target has limited bandwidth. :-(

  


• Cannot play second sdp file with FFMPEG : Address already in use

  8 novembre 2017, par user1490563

  SUMMARY- iam not able to process two sdp files simultaneously on one machine. ffmpeg throws "bind failed : Address already in use"

  My aim to get an stream from webRTC ( via kurento ) and then trancode it to be sent to RTMP server. I was able to generate an dp file and it transcoded easily but second one gave an error - "Address already in use".

  What i have already tried -
  i have dynamically changed the video and audio port in both files so that ports do not overlap (files pasted at the end of question ).
  i was albe to see that while one stream was successfully getting transcoded,the other streams video and audio ports were blocked by the same FFMPEG instance running for the first one. I do not know why or how.
  Its possible that i may be doing some mistake.
  Requesting help. i will like to stream multiple live videos at the same time.

  first SDP file

  v=0
  
  o=- 0 0 IN IP4 127.0.0.1
  
  s=KMS
  
  c=IN IP4 127.0.0.1
  
  t=0 0
  
  m=audio 49170 RTP/AVP 97
  
  a=recvonly
  
  a=rtpmap:97 PCMU/8000
  
  a=fmtp:97 profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1508
  
  m=video 55000 RTP/AVP 96
  
  a=rtpmap:96 H264/90000
  
  a=fmtp:96 packetization-mode=1

  second SDP file :

  v=0
  
  o=- 0 0 IN IP4 127.0.0.1
  
  s=KMS
  
  c=IN IP4 127.0.0.1
  
  t=0 0
  
  m=audio 49171 RTP/AVP 97
  
  a=recvonly
  
  a=rtpmap:97 PCMU/8000
  
  a=fmtp:97 profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1508
  
  m=video 55001 RTP/AVP 96
  
  a=rtpmap:96 H264/90000
  
  a=fmtp:96 packetization-mode=1

• FFMPEG Open several video files at the same time ? C++ [on hold]

  8 octobre 2017, par LemanRass

  I wrote a C++ plugin for playing videos using FFmpeg libraries. All works perfectly when playing a single video, but when I try to play at least 2 videos at the same time I have these errors :

  #01 pc 0000714d  /data/app/com.ffmpeg.sdk.videoplugin-
  
  1/lib/arm/libAndroidVideoPlugin.so (_ZN12FFmpegReader13ReadNextFrameEPvPc+404)
  
  #02 pc 00005a9f  /data/app/com.ffmpeg.sdk.videoplugin-
  
  1/lib/arm/libAndroidVideoPlugin.so (_ZN9Videofile17UpdateFramesCacheEv+118)
  
  #03 pc 000057d1  /data/app/com.ffmpeg.sdk.videoplugin-
  
  1/lib/arm/libAndroidVideoPlugin.so (_firstUpdateThread+80)

  It seems that when I open the second video it, replaces the first one.
  I came up with this idea when I opened 2 videos one by one (without any errors) then I started to play only the second one and as a result I didn’t get any errors. But when I tried to read frames from the first video, my app crashed with the error above.

  A bit about plugin`s structure :

  1. I created a class called FFmpegReader where methods work
     directly with ffmpeg (Opening file, ReadFrames and returning them as void*,
     Seek and Close).

  2. Then I created one more class which creates a FFmpegReader instance using
     the "new" operator inside its constructor, descriptor (unique id of the opened
     file), queue of cached frames (up to 100 at the same time) and
     methods to operate with FFmpegReader and framesCache.

  3. I created a main file where I created a vector of objects of class from
     the second point I described above. Also I declared 4 threads for each
     opened video file (4 opened videos is the max number of allowed opened
     videos at the same time). They call the method to update a cache of frames in
     its own video file using the video file descriptor. Finally I declared methods
     which will be called from the main app which is using this plugin to retrieve
     cached frames from cache.

  As you can see, I did everything to let it works separately with each new opened video. It seems the problem is inside of FFmpeg. There might be some restrictions I’m not aware of.

  ================UPDATE=================

  Sources of Main: https://pastebin.com/DfGH0BRZ
  
  Sources of Videofile class: https://pastebin.com/WjdS532B
  
  Sources of FFmpegReader class: https://pastebin.com/aPHpBvBv

  Hope it’s gonna help...