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• 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.

• Tagline challenge : what’s in a tagline ?

  23 octobre 2018, par Joselyn Khor — Marketing

  

  Our new website needs a new tagline !

  We’ve been going with the words “liberating analytics” for a few years and believe it’s time for a refresh.

  Coming up with a new tagline is leading to a few sleepless nights so we’ve decided to reach out to you guys to see if you’re up for a challenge.

  We’ve tried a few options but they don’t seem quite right, just yet :

  “Complete analytics”
  “All-in-one analytics”
  “Your analytics”
  “Beyond analytics”
  “Analytics for humans”

  We’ve gone through about 46 so far and none have stuck so we want your ideas. Are you feeling the options above, or can you (surely) come up with one even better ?

  Leave it in the comments section of our Mastodon, Facebook, Twitter pages, DM or post about it. You can also get in touch through the site ! Do whatever is necessary to let us know. Have what it takes to think of a tagline for a global analytics company ?

• Unable to play video processed by ffmpeg

  8 janvier 2023, par Kong

  I have an issue of not being able to play a video that was processed by ffmpeg. I have 6 videos, each of different length but same frame rate that i merge (2 rows 3 columns).

  


  VLC player doesn't run it, using any other players return an error. Below is the code I used to combine the videos. I can't seem to find a solution on Google or Stack Overflow.

  


  C:\Users\kong\Desktop\kong\atasets\nuscenes\sweeps\_video>ffmpeg -i frontleft.avi -i front.avi -i frontright.avi -i backleft.avi -i back.avi -i backright.avi -filter_complex "[0:v][1:v][2:v]hstack=3[top];[3:v][4:v][5:v]hstack=3[bottom];[top][bottom]vstack[v]" -map "[v]" output.avi
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7.3.1 (GCC) 20180722
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  libavutil      56. 14.100 / 56. 14.100
  libavcodec     58. 18.100 / 58. 18.100
  libavformat    58. 12.100 / 58. 12.100
  libavdevice    58.  3.100 / 58.  3.100
  libavfilter     7. 16.100 /  7. 16.100
  libswscale      5.  1.100 /  5.  1.100
  libswresample   3.  1.100 /  3.  1.100
  libpostproc    55.  1.100 / 55.  1.100
Input #0, avi, from 'frontleft.avi':
  Metadata:
    encoder         : Lavf58.12.100
  Duration: 00:15:51.90, start: 0.000000, bitrate: 9475 kb/s
    Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuvj420p(pc, progressive), 1600x900 [SAR 1:1 DAR 16:9], 9471 kb/s, 20 fps, 20 tbr, 20 tbn, 40 tbc
Input #1, avi, from 'front.avi':
  Metadata:
    encoder         : Lavf58.12.100
  Duration: 00:15:45.00, start: 0.000000, bitrate: 7887 kb/s
    Stream #1:0: Video: h264 (High) (H264 / 0x34363248), yuvj420p(pc, progressive), 1600x900 [SAR 1:1 DAR 16:9], 7884 kb/s, 20 fps, 20 tbr, 20 tbn, 40 tbc
Input #2, avi, from 'frontright.avi':
  Metadata:
    encoder         : Lavf58.12.100
  Duration: 00:15:44.20, start: 0.000000, bitrate: 8551 kb/s
    Stream #2:0: Video: h264 (High) (H264 / 0x34363248), yuvj420p(pc, progressive), 1600x900 [SAR 1:1 DAR 16:9], 8547 kb/s, 20 fps, 20 tbr, 20 tbn, 40 tbc
Input #3, avi, from 'backleft.avi':
  Metadata:
    encoder         : Lavf58.12.100
  Duration: 00:15:11.05, start: 0.000000, bitrate: 9864 kb/s
    Stream #3:0: Video: h264 (High) (H264 / 0x34363248), yuvj420p(pc, progressive), 1600x900 [SAR 1:1 DAR 16:9], 9859 kb/s, 20 fps, 20 tbr, 20 tbn, 40 tbc
Input #4, avi, from 'back.avi':
  Metadata:
    encoder         : Lavf58.12.100
  Duration: 00:15:17.95, start: 0.000000, bitrate: 7347 kb/s
    Stream #4:0: Video: h264 (High) (H264 / 0x34363248), yuvj420p(pc, progressive), 1600x900 [SAR 1:1 DAR 16:9], 7344 kb/s, 20 fps, 20 tbr, 20 tbn, 40 tbc
Input #5, avi, from 'backright.avi':
  Metadata:
    encoder         : Lavf58.12.100
  Duration: 00:15:46.30, start: 0.000000, bitrate: 8965 kb/s
    Stream #5:0: Video: h264 (High) (H264 / 0x34363248), yuvj420p(pc, progressive), 1600x900 [SAR 1:1 DAR 16:9], 8961 kb/s, 20 fps, 20 tbr, 20 tbn, 40 tbc
File 'output.avi' already exists. Overwrite ? [y/N]


  


  Feedback on proposed duplicate

  


  It seems like this isn't a duplicate because all the solutions in the duplicate links do not work.