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• Why the converted videos file size is greater than original file size ?

  6 décembre 2011, par svk

  I am using ffmpeg to convert the videos into mp4.Its working fine and its playing with high quality.No problem.But the worst case is I uploaded 14Mb file and after converting it goes to 30 Mb file.I am using the following the script to convert

  exec("ffmpeg -i videowithaudio.flv -vcodec libx264 -vpre hq -vpre ipod640 -b 250k -bt 50k -acodec libfaac -ab 56k -ac 2 -s 480x320 video_out_file.mp4 > output1.txt 2> apperror1.txt");   //webkit compatible

  I am using PHP for executing this command.Could you please help me how to reduce the file size from this 30Mb (nearly to uploaded file size is ok) with same quality.

• My server is constantly downloading a file, and I don't know what it is [closed]

  7 novembre 2023, par fatemeh mojarrad

  I am converting video with ffmpeg and every few hours my server downloads a file and I don't know what it is and I want to be able to identify what file the server is downloading or what package it is updating.
my requirements :
uwsgi
PyMySQL
Flask
metadata_parser
captcha
flask-compress
wget
moviepy
python-dateutil
jdatetime
flask-cors
eyed3
termcolor
tqdm
redis
zeep
nsfw-detector
Pillow
opencv-python==4.6.0.66
tensorflow==2.9.1
opennsfw2
psutil

  


  My server is Linux and my operating system is CentOS 7

  


  I searched and updated the programs, but this happened again

  


• Compiled file for ffmpeg - iphone audio

  3 avril 2012, par Sreekumar Kalarikkal

  I would like to build an iPhone application which streams internet radio stations which includes .wma files also. So I found that in-order to play wma files, we need FFMPEG compiled files. I tried to build FFMPEG for iPhone, but having errors. I followed the guide here,

  I can able to build ffmpeg, but when I run the project using that library, I am getting the following error.

  Ld /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio normal armv6
  
  cd "/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio"
  
  setenv IPHONEOS_DEPLOYMENT_TARGET 3.0
  
  setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
  
  /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -arch armv6 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -L/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../Common/build/Release-iphonesimulator" "-L/Users/sreekumar/Downloads/WR1.9 4/Common/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv6" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv7" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../../Compiled frameworks MMS and ffmpeg/WR1.9/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../.." "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio" -F/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -filelist /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio.LinkFileList -dead_strip -ObjC -Wl --allow-multiple-definition -all_load -miphoneos-version-min=3.0 -framework MessageUI -framework Foundation -framework UIKit -framework CoreGraphics -framework SystemConfiguration -framework AudioToolbox -framework QuartzCore -framework MediaPlayer -weak_framework AVFoundation -framework CoreLocation -framework CFNetwork -lffmpegLib -llibmms -lCommon -lz -o /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio
  
  
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphoneos'
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator'
  
  ld: warning: ignoring file /Volumes/DISC/Radio App/Running copy/WR1.9/Common/build/Release-iphonesimulator/libCommon.a, file was built for archive which is not the architecture being linked (armv6)
  
  ld: duplicate symbol _fourxm_decoder in /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) and /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) for architecture armv6
  
  collect2: ld returned 1 exit status
  
  Command /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 failed with exit code 1    

  So I think anybody of you may be successfully compiled and used this. If yes please give me some instructions to do this.

  Or if you can find the solution for the error. please let me know.