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• Changed the local scoping of the window variable with this to prevent an obscure bug in IE7

  4 octobre 2012, par Laurent Goderre

  m colorbox/jquery.colorbox.js Changed the local scoping of the window variable with this to prevent an obscure bug in IE7 In some very rare occassions using this as the windows variable causes a memory leak in IE7.

• Local file creation of ffmpeg hls http stream

  10 juillet 2018, par Emilian

  After researching all the options for ffmpeg hls streaming and setting it up for uploading to a http server i encountered a problem, ffmpeg also creates local files for the segment/playlist in the current working directory.

  What im trying to achieve is upload to a server and serve the segments and playlist from memory and not from disk. Tried setting a http url for segments like this :

  ffmpeg -re -i filter_test.ts -f hls -hls_segment_filename http://localhost:3000/segment/playlist_%03d.ts -method PUT http://localhost:3000/segment/playlist.m3u8

  but that also didnt work.

  Is there any way to stop ffmpeg from creating local files for the hls stream and only upload them to the server ?

  In the logs it says

  [hls @ 00000274041104e0] Opening 'http://localhost:3000/segment/playlist_000.ts' for writing
  
  [http @ 00000274046a2fa0] request: POST /segment/playlist_000.ts HTTP/1.1

  but nothing about writing it to a file.

• Playing local (m3u8) file in ijkplayer can't play videos faster, using protocol_whitelist with 'tcp, http, https, udp, file, crypto, concat'

  3 août 2020, par gh05t

  I've been trying to find a solution to play m3u8 files in flutter and have the ability to change quality and speed of the videos, and I've reached a point where I'm able to do one or the other but not both. To change streams of m3u8, I'm splitting the files locally and essentially creating different files with each file only having one quality thus achieving quality change, but to play local files I have to use format option of ffmpeg protocol_whitelist and for some reason it's messing with my ability to play videos faster than 1.0, now the problem is not with the files I tried to connect to same file using google drive and since it's not a local file I don't need to set the protocol_whitelist. I don't know if this is an ffmpeg issue or an ijk player issue or perhaps even just a flutter ijk player issue, but if someone knows or has any ideas on how to fix please let me know, I also tried to use networkdataSource and give url as 'file://path/filename.m3u8' but no luck it requires the protocol_whitelist as well.

  


  The player by default sets the fflags with 'fastseek' and I suspect that setting protocol_whitelist, is causing some issue with this flag and that is what is causing the problem.(fast seek helps with seeking to a point ahead of buffer in m3u8 and has nothing to do with player speed I've learned)

  


  So basically can I either fix this issue somehow ? (either by changing qualities from the original master m3u8 file with the player and not doing all this stuff with local file ?)

  


  Or is there a way to give a local file to player such that it thinks it came from http/https and it plays it without causing an issue ?
(Wait did I answer my own question here ? making a http server and serving my file from my phone and using that should that be enough but localhost will be same as using file :/// essentially or not ? It's not and it fixes the issue ! XD)

  


  In case someone just knows some other solution perhaps ?
I do know that it's possible to add a function in c in ffmpeg to play different streams from master m3u8 but then I would have to compile 4-5 versions of this for different mobile processors and then interface to Java with JNI/JNA and to objective C, and then to flutter, which seems out of scope of my ability for the time being.