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• Creating a timelapse from a directory of jpgs

  26 juillet 2020, par Casey Davis

  I'm using this code to create a timelapse from a directory of images. My directory has about 1600 jpgs in it that all start with the date in this format 2020-03-01-time.jpg, 2020-03-02-time-name.jpg, etc. Sorting alphabetically works just fine. It runs, but it seems to only get through a few hundred photos and makes a 3 second long mp4. I'm not sure what I'm doing wrong.

  


  I'm not opposed to moving to python or anything else. Eventually I'll need to pass some parameters in here and I'll attempt to automate it and ftp the output to a webserver.

  


  Here is the command :

  


  ffmpeg -r 24 -pattern_type glob -i '*.jpg' -s hd1080 -vcodec libx264 timelapse.mp4


  


  Here is the output :

  


  ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, image2, from '*.jpg':
  Duration: 00:01:06.32, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
File 'timelapse.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x55a43cfb1d00] using SAR=1/1
[libx264 @ 0x55a43cfb1d00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x55a43cfb1d00] profile High, level 4.0
[libx264 @ 0x55a43cfb1d00] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=20 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'timelapse.mp4':
  Metadata:
    encoder         : Lavf57.83.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 20 fps, 10240 tbn, 20 tbc
    Metadata:
      encoder         : Lavc57.107.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=   72 fps= 11 q=-1.0 Lsize=   10663kB time=00:00:03.45 bitrate=25318.0kbits/s speed=0.507x    
video:10661kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.015737%
[libx264 @ 0x55a43cfb1d00] frame I:5     Avg QP:23.69  size:223467
[libx264 @ 0x55a43cfb1d00] frame P:33    Avg QP:26.52  size:139314
[libx264 @ 0x55a43cfb1d00] frame B:34    Avg QP:28.49  size:152989
[libx264 @ 0x55a43cfb1d00] consecutive B-frames: 33.3%  8.3%  8.3% 50.0%
[libx264 @ 0x55a43cfb1d00] mb I  I16..4:  2.2% 96.6%  1.2%
[libx264 @ 0x55a43cfb1d00] mb P  I16..4:  2.1% 78.8%  1.5%  P16..4:  9.4%  4.7%  2.6%  0.0%  0.0%    skip: 0.8%
[libx264 @ 0x55a43cfb1d00] mb B  I16..4:  1.1% 20.4%  2.3%  B16..8: 27.6% 13.7%  5.3%  direct:22.7%  skip: 6.9%  L0:33.5% L1:32.2% BI:34.3%
[libx264 @ 0x55a43cfb1d00] 8x8 transform intra:93.8% inter:86.5%
[libx264 @ 0x55a43cfb1d00] coded y,uvDC,uvAC intra: 91.5% 66.0% 17.4% inter: 77.7% 58.7% 2.2%
[libx264 @ 0x55a43cfb1d00] i16 v,h,dc,p: 13% 56%  3% 28%
[libx264 @ 0x55a43cfb1d00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 20% 39%  4%  3%  3%  4%  4%  8%
[libx264 @ 0x55a43cfb1d00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 28% 12%  5%  7%  7%  6%  7%  8%
[libx264 @ 0x55a43cfb1d00] i8c dc,h,v,p: 49% 29% 19%  3%
[libx264 @ 0x55a43cfb1d00] Weighted P-Frames: Y:30.3% UV:24.2%
[libx264 @ 0x55a43cfb1d00] ref P L0: 48.2% 17.7% 17.7% 13.3%  3.2%
[libx264 @ 0x55a43cfb1d00] ref B L0: 83.2% 14.2%  2.5%
[libx264 @ 0x55a43cfb1d00] ref B L1: 93.8%  6.2%
[libx264 @ 0x55a43cfb1d00] kb/s:24258.47


  


• Nvidia on Linux : "Codec h264_cuvid is not supported"

  2 août 2020, par Raphael

  I configured FFMPEG to use Nvidia, but when I try this command

  


  ffmpeg -vsync 0 -hwaccel cuvid -c:v h264_cuvid -i input.mp4 -c:a copy -c:v h264_nvenc -b:v 5M output.mp4

  


  I get the error

  


  


  [h264_cuvid @ 0x556eaa3ea780] Codec h264_cuvid is not supported

  


  


  Here's the output of nvidia-smi :

  


  +-----------------------------------------------------------------------------+
| NVIDIA-SMI 450.51.05    Driver Version: 450.51.05    CUDA Version: 11.0     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  GeForce 940MX       On   | 00000000:01:00.0 Off |                  N/A |
| N/A   47C    P5    N/A /  N/A |    396MiB /  2004MiB |     22%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|    0   N/A  N/A      1131      G   /usr/lib/xorg/Xorg                 37MiB |
|    0   N/A  N/A      1883      G   /usr/lib/xorg/Xorg                129MiB |
|    0   N/A  N/A      2175      G   /usr/bin/gnome-shell               92MiB |
|    0   N/A  N/A      3649      G   ...AAAAAAAAA= --shared-files      126MiB |
+-----------------------------------------------------------------------------+


  


  And the output of ffmpeg :

  


  ffmpeg version git-2020-07-25-7c8ad72 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --enable-gpl --enable-libx264 --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
  libavutil      56. 57.100 / 56. 57.100
  libavcodec     58. 97.102 / 58. 97.102
  libavformat    58. 49.100 / 58. 49.100
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100


  


• Ffmpeg invalid data when trying to merge videos

  30 juillet 2020, par Luka Milivojevic

  I have a below function for merging videos in Python without re-encoding using FFmpeg :

  


  def merge():
    """
    This function merges a group of videos into one long video.
    It is used for merging parts that are cut from original video into a new one.
    The videos are merged using ffmpeg and for the ffmpeg
    to use the concat method on them, the video names must be put inside
    the vidlist.txt file.
    New video is saved to the file named output.mp4.
    """
    command = "ffmpeg -hide_banner -loglevel error -f concat -safe 0 -i vidlist.txt -c copy output.mp4"
    # merge multiple parts of the video
    subprocess.call(command, shell=True)


  


  I store paths to videos to be merged inside a vidlist.txt file which looks like :

  


  file 'out11.mp4'
file 'out21.mp4'


  


  But, I am getting the following error :

  


  vidlist.txt: Invalid data found when processing input


  


  Here is the report file :

  


  ffmpeg started on 2020-07-30 at 20:23:53
Report written to "ffmpeg-20200730-202353.log"
Log level: 48
Command line:
ffmpeg -hide_banner -f concat -safe 0 -i "C:\\Users\\miliv\\videocutter\\utils\\vidlist.txt" -c copy output.mp4 -report
Splitting the commandline.
Reading option '-hide_banner' ... matched as option 'hide_banner' (do not show program banner) with argument '1'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'concat'.
Reading option '-safe' ... matched as AVOption 'safe' with argument '0'.
Reading option '-i' ... matched as input url with argument 'C:\Users\miliv\videocutter\utils\vidlist.txt'.
Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option 'output.mp4' ... matched as output url.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option hide_banner (do not show program banner) with argument 1.
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input url C:\Users\miliv\videocutter\utils\vidlist.txt.
Applying option f (force format) with argument concat.
Successfully parsed a group of options.
Opening an input file: C:\Users\miliv\videocutter\utils\vidlist.txt.
[concat @ 000001aaafb8e400] Opening 'C:\Users\miliv\videocutter\utils\vidlist.txt' for reading
[file @ 000001aaafb8f500] Setting default whitelist 'file,crypto,data'
[AVIOContext @ 000001aaafb97700] Statistics: 0 bytes read, 0 seeks
C:\Users\miliv\videocutter\utils\vidlist.txt: Invalid data found when processing input