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• Compile ffmpeg with x264 shows : ERROR : libx264 not found

  6 mai 2019, par NKam

  Trying to install ffmpeg from source with libx264 package. When I compile ffmpeg can’t find x264 because it is not installed.
  I followed ffmpeg installation guide.

  I tried to install and compile ffmpeg locally and found out in folder ffmpeg_build/include I don’t have x264 files installed.

  To compile libx264 I used :

  cd /ffmpeg_sources &&

  git -C x264 pull 2> /dev/null || git clone —depth 1 https://code.videolan.org/videolan/x264.git &&

  cd x264 &&

  PATH="$HOME/bin :$PATH"

  PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure —prefix="$HOME/ffmpeg_build" —bindir="$HOME/bin" —enable-static —enable-pic &&

  PATH="$HOME/bin :$PATH" make &&

  make install

  I changed url to https://code.videolan.org/videolan/x264.git, because this url https://git.videolan.org/git/x264 from guide not working

  Here how config.log’s last lines look like

  test_cflags -Wmaybe-uninitialized
  
  test_cc -Wmaybe-uninitialized
  
  BEGIN /tmp/ffconf.1LD1vklR/test.c
  
      1   int x;
  
  END /tmp/ffconf.1LD1vklR/test.c
  
  gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -I/home/nurs/ffmpeg_build/include -std=c11 -fomit-frame-pointer -fPIC -pthread -I/home/nurs/ffmpeg_build/include -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/fribidi -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/opus -I/usr/include/opus -I/usr/include/alsa -g -Wdeclaration-after-statement -Wall -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wwrite-strings -Wtype-limits -Wundef -Wmissing-prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -Wempty-body -Wno-parentheses -Wno-switch -Wno-format-zero-length -Wno-pointer-sign -Wno-unused-const-variable -Wno-char-subscripts -O3 -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -Werror=format-security -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=return-type -Werror=vla -Wformat -fdiagnostics-color=auto -Wmaybe-uninitialized -c -o /tmp/ffconf.1LD1vklR/test.o /tmp/ffconf.1LD1vklR/test.c

  I want to know what I missed. I want ffmpeg to find x264, if it is not installed how can I find way to install.

• Why isn't ffmpeg slicing my .mp4 video as it should ?

  7 octobre 2018, par Allen

  [mov,mp4,m4a,3gp,3g2,mj2 @ 0xcf5480] Could not find codec parameters for stream 0 (Video: none (avc3 / 0x33637661), none, 704x396, 1541 kb/s): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  /home/elias/testing_vid.mp4: could not find codec parameters
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/user/testing_vid.mp4':
  
    Metadata:
  
      major_brand     : iso6
  
      minor_version   : 0
  
      compatible_brands: iso6dash
  
    Duration: 00:00:59.76, start: 0.020000, bitrate: 1544 kb/s
  
      Stream #0:0(und): Video: none (avc3 / 0x33637661), none, 704x396, 1541 kb/s, 50 fps, 50 tbr, 50k tbn, 50k tbc (default)
  
      Metadata:
  
        handler_name    : USP Video Handler
  
        encoder         : Elemental H.264
  
  No decoder for stream #0:0, filtering impossible
  
  Error opening filters!

  This is the error message i got, my ubuntu and ffmpeg versions are :

  ffmpeg amd64 7:2.8.15-0ubuntu0.16.04.1

• unable to create flv file from 3gp using ffmpeg php

  25 septembre 2012, par Naeem

  i am using the following code but it is not generating the flv file, other code is working fine if i convert mp4 to flv, following is my code.

   define('FFMPEG','/usr/local/bin/ffmpeg');
  
   $src='/home/zimmapp/public_html/images/video/video_3465733831.3gp';
  
   $destination='/home/zimmapp/public_html/images/video/naeem.flv';
  
  
  
  //i  user this code
  
  exec(FFMPEG . " -i $src  -sameq -ar 22050 -ab 96000 -deinterlace -nr 500 -s 320x240 -aspect 4:3 -r 20 -g 500 -me_range 20 -b 270k -deinterlace -f flv -y $destination");
  
  //OR this 
  
  exec( FFMPEG ." -i $src -ar 22050 -ab 32 -f flv -s 320×240 $destination") or print "Convert Error";

  BUT Nothing working
  my website support gave me this error report :

  server I found this error:Seems stream 0 codec frame rate differs from container frame rate : 180000.00
  (180000/1) -> 90000.00 (180000/2) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
  '/home/zimmapp/public_html/images/video/1347616191-2.3gp' : Metadata :
  major_brand : isom minor_version : 0 compatible_brands : isom3gp4 creation_time
   : 2012-09-06 07:02:00 Duration : 00:00:02.32, start : 0.000000, bitrate : 9769 kb/s Stream #0.0(eng) : Video : h264, yuv420p, 1280x720, 11834 kb/s, 29.58 fps, 90k tbr, 90k tbn, 180k tbc Metadata : creation_time : 2012-09-06 07:02:00 Stream #0.1(eng) : Audio : aac, 48000 Hz, stereo, s16, 126 kb/s Metadata :
  creation_time : 2012-09-06 07:02:00 Unable to find a suitable output format for ' -sameq'