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• Compiling x264 with ffms2 support under linux

  6 mai 2021, par El_Dorado

  I wonder how to compile x264 with ffms2 support under linux, specifically on CentOS 8.
I'm able sucessfully compile ffmpeg with all available libraries under usual compilation (including x264), and even ffms2, but i want to compile x264 with ffms2 support.

  


  I know i can get it from rpmfusion, but actually after installing this package, CentOS wont boot. Also i need to compile it by myself for toilering to specific needs.

  


  I also know that i've to recompile x264 because ffmpeg needs x264, ffms2 needs ffmpeg, and so on.

  


  Thank You.

  


• Compiling x264 with ffms2 support under linux

  6 mai 2021, par El_Dorado

  I wonder how to compile x264 with ffms2 support under linux, specifically on CentOS 8.
I'm able sucessfully compile ffmpeg with all available libraries under usual compilation (including x264), and even ffms2, but i want to compile x264 with ffms2 support.

  


  I know i can get it from rpmfusion, but actually after installing this package, CentOS wont boot. Also i need to compile it by myself for toilering to specific needs.

  


  I also know that i've to recompile x264 because ffmpeg needs x264, ffms2 needs ffmpeg, and so on.

  


  Thank You.

  


• Invalid data when converting mp4 to x264 with ffmpeg but fine when converting flv to x264

  15 octobre 2018, par Julien

  I have a PHP script that converts uploaded videos to x264, it works fine if I upload an FLV, but with an MP4 it doesn’t work, here’s the command and output :

  Command :

  ffmpeg -y -i ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4 -crf 0 -vcodec libx264 -movflags faststart ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4 2>&1

  Output :

  ffmpeg version N-67321-ge5054c8 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Nov  1 2014 12:53:28 with gcc 4.8.2 (GCC) 20140120 (Red Hat 4.8.2-16)
  
    configuration: --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264
  
    libavutil      54. 11.100 / 54. 11.100
  
    libavcodec     56. 10.100 / 56. 10.100
  
    libavformat    56. 11.101 / 56. 11.101
  
    libavdevice    56.  2.100 / 56.  2.100
  
    libavfilter     5.  2.100 /  5.  2.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2mp41
  
      creation_time   : 2018-10-08 12:03:53
  
      encoder         : Lavf56.15.102
  
    Duration: 00:03:03.08, start: 0.023129, bitrate: 1647 kb/s
  
      Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 720x404 [SAR 1:1 DAR 180:101], 1547 kb/s, 24 fps, 24 tbr, 12288 tbn, 24 tbc (default)
  
      Metadata:
  
        creation_time   : 2018-10-08 12:03:53
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
  
      Metadata:
  
        creation_time   : 2018-10-08 12:03:53
  
        handler_name    : SoundHandler
  
  [libx264 @ 0x1f0a080] using SAR=1/1
  
  [libx264 @ 0x1f0a080] using cpu capabilities: MMX2 SSE Cache64
  
  [libx264 @ 0x1f0a080] profile High 4:4:4 Predictive, level 3.0, 4:2:0 8-bit
  
  [libx264 @ 0x1f0a080] 64 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=0 mixed_ref=1 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=0
  
  Output #0, mp4, to '../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2mp41
  
      encoder         : Lavf56.11.101
  
      Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x404 [SAR 1:1 DAR 180:101], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
  
      Metadata:
  
        creation_time   : 2018-10-08 12:03:53
  
        handler_name    : VideoHandler
  
        encoder         : Lavc56.10.100 libx264
  
      Stream #0:1(und): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2018-10-08 12:03:53
  
        handler_name    : SoundHandler
  
        encoder         : Lavc56.10.100 libfdk_aac
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
  
  Press [q] to stop, [?] for help
  
  [mpeg4 @ 0x2004420] ac-tex damaged at 1 1
  
  [mpeg4 @ 0x2004420] Error at MB: 47
  
  [mpeg4 @ 0x2004420] concealing 1170 DC, 1170 AC, 1170 MV errors in P frame
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ed3ec0] stream 1, offset 0xee5b: partial file
  
  ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4: Invalid data found when processing input
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ed3ec0] stream 0, offset 0xef98: partial file
  
  ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4: Invalid data found when processing input
  
  [mp4 @ 0x1f08f40] Starting second pass: moving the moov atom to the beginning of the file
  
  frame=    3 fps=0.0 q=-1.0 Lsize=     116kB time=00:00:00.12 bitrate=7585.3kbits/s dup=1 drop=0    
  
  video:113kB audio:2kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.171168%
  
  [libx264 @ 0x1f0a080] frame I:1     Avg QP: 0.00  size:113785
  
  [libx264 @ 0x1f0a080] frame P:2     Avg QP: 0.00  size:   518
  
  [libx264 @ 0x1f0a080] mb I  I16..4: 38.4%  0.0% 61.6%
  
  [libx264 @ 0x1f0a080] mb P  I16..4:  0.2%  0.0%  0.1%  P16..4:  1.2%  0.1%  0.2%  0.0%  0.0%    skip:98.3%
  
  [libx264 @ 0x1f0a080] 8x8 transform intra:0.0% inter:3.1%
  
  [libx264 @ 0x1f0a080] coded y,uvDC,uvAC intra: 91.6% 88.7% 88.7% inter: 0.7% 0.2% 0.2%
  
  [libx264 @ 0x1f0a080] i16 v,h,dc,p: 46% 53%  1%  0%
  
  [libx264 @ 0x1f0a080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 44% 40%  3%  2%  3%  2%  2%  2%  2%
  
  [libx264 @ 0x1f0a080] i8c dc,h,v,p:  2% 55% 43%  0%
  
  [libx264 @ 0x1f0a080] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x1f0a080] kb/s:7348.61

  As you can see there are some errors, there. I’ve tried with several different mp4 files, from different sources so it’s not a problem of the video files.

  I’ve also tried without the -movflags faststart option, also tried with -q:v 0 instead of -crf 0, nothing works, but like stated above, it works from FLV -> MP4, what am i doing wrong here ?

  PS : By "Nothing works" I mean the resulting MP4 plays for 1 frame in the browser and stops.