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• 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.

  


• How to stream MJPEG stream to RTMP server ?

  24 octobre 2018, par geooot

  I have a MJPEG stream and I’m trying to use ffmpeg to take it as an input and stream it to an rtmp server at a defined framerate.

  I have already tried this as a command :

  ffmpeg -f mjpeg -r 60 -i http://localhost:3030/ -f flv -vcodec flv rtmp://localhost/live/test

  While ffmpeg looks like it is sending something...

  ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
    built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
    configuration : —prefix=/usr/local/Cellar/ffmpeg/4.0.2 —enable-shared —enable-pthreads —enable-version3 —enable-hardcoded-tables —enable-avresample —cc=clang —host-cflags= —host-ldflags= —enable-gpl —enable-libmp3lame —enable-libx264 —enable-libxvid —enable-opencl —enable-videotoolbox —disable-lzma
    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
    libavresample   4.  0.  0 /  4.  0.  0
    libswscale      5.  1.100 /  5.  1.100
    libswresample   3.  1.100 /  3.  1.100
    libpostproc    55.  1.100 / 55.  1.100
  Input #0, mjpeg, from ’http://localhost:3030/’ :
    Duration : N/A, bitrate : N/A
      Stream #0:0 : Video : mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 60 tbr, 1200k tbn, 60 tbc
  [tcp @ 0x7f95f9401ec0] Connection to tcp ://localhost:1935 failed (Connection refused), trying next address
  Stream mapping :
    Stream #0:0 -> #0:0 (mjpeg (native) -> flv1 (flv))
  Press [q] to stop, [?] for help
  [swscaler @ 0x7f95fa033e00] deprecated pixel format used, make sure you did set range correctly
  Output #0, flv, to ’rtmp ://localhost/live/test’ :
    Metadata :
      encoder : Lavf58.12.100
      Stream #0:0 : Video : flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 60 fps, 1k tbn, 60 tbc
      Metadata :
        encoder : Lavc58.18.100 flv
      Side data :
        cpb : bitrate max/min/avg : 0/0/200000 buffer size : 0 vbv_delay : -1
  frame=   20 fps=3.2 q=31.0 size=     194kB time=00:00:00.31 bitrate=4999.6kbits/s speed=0.0512x
  

  I cannot preview the stream through VLC. Weirdly enough, if I let VLC try to load the url (rtmp ://localhost/live/test) and then close ffmpeg, VLC will actually show the video stream for a few frames and then stop again.

  Help on how to achieve this would be much appreciated.

• 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.