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• ffmpeg concat video length is not the sum of durations

  9 novembre 2019, par Mason

  I’m simply trying to put some images together into a video with specific durations. I’m using the command

  ffmpeg -f concat -i concat.txt -r 30 video.mp4

  # concat.txt
  
  
  
  file capture12.png
  
  duration 1
  
  file capture57.png
  
  duration 3
  
  file capture156.png
  
  duration 7
  
  file capture234.png
  
  duration 5
  
  file capture272.png
  
  duration 3

  The output of my console is

  ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.1.1 (GCC) 20190807
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --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 --enable-libopenmpt
  
    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Input #0, concat, from 'concat.txt':
  
    Duration: 00:00:19.00, start: 0.000000, bitrate: 0 kb/s
  
      Stream #0:0: Video: png, rgba(pc), 983x553, 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 000001b3e55c5c80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000001b3e55c5c80] profile High 4:4:4 Predictive, level 3.1, 4:4:4, 8-bit
  
  [libx264 @ 000001b3e55c5c80] 264 - core 158 r2984 3759fcb - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=4 threads=6 lookahead_threads=1 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=25 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 'video.mp4':
  
    Metadata:
  
      encoder         : Lavf58.29.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 983x553, q=-1--1, 30 fps, 15360 tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc58.54.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  frame=  629 fps=400 q=-1.0 Lsize=     124kB time=00:00:20.86 bitrate=  48.8kbits/s dup=624 drop=0 speed=13.3x
  
  video:116kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 7.050883%
  
  [libx264 @ 000001b3e55c5c80] frame I:3     Avg QP:13.09  size: 20222
  
  [libx264 @ 000001b3e55c5c80] frame P:158   Avg QP:10.80  size:   207
  
  [libx264 @ 000001b3e55c5c80] frame B:468   Avg QP:13.75  size:    53
  
  [libx264 @ 000001b3e55c5c80] consecutive B-frames:  0.8%  0.0%  0.0% 99.2%
  
  [libx264 @ 000001b3e55c5c80] mb I  I16..4: 23.0% 58.6% 18.4%
  
  [libx264 @ 000001b3e55c5c80] mb P  I16..4:  0.0%  0.0%  0.2%  P16..4:  0.1%  0.0%  0.0%  0.0%  0.0%    skip:99.7%
  
  [libx264 @ 000001b3e55c5c80] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  1.3%  0.0%  0.0%  direct: 0.0%  skip:98.7%  L0:66.5% L1:33.5% BI: 0.0%
  
  [libx264 @ 000001b3e55c5c80] 8x8 transform intra:54.0% inter:7.4%
  
  [libx264 @ 000001b3e55c5c80] coded y,u,v intra: 15.3% 0.7% 0.7% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 000001b3e55c5c80] i16 v,h,dc,p: 86% 14%  0%  0%
  
  [libx264 @ 000001b3e55c5c80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 65%  7% 28%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 000001b3e55c5c80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 50% 14% 14%  3%  4%  5%  4%  4%  3%
  
  [libx264 @ 000001b3e55c5c80] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000001b3e55c5c80] ref P L0: 87.3%  6.3%  5.6%  0.8%
  
  [libx264 @ 000001b3e55c5c80] ref B L0: 45.3% 54.3%  0.4%
  
  [libx264 @ 000001b3e55c5c80] ref B L1: 99.6%  0.4%
  
  [libx264 @ 000001b3e55c5c80] kb/s:45.07

  I can see it clearly saying Duration 00:00:19.00 (as it should be) and then later saying that the final video is 00:00:20.86. How do I get these numbers to match ?

• KeyError : 'video_fps' with moviepy ffmpeg

  11 août 2020, par Ethan Shoe

  I am writing a Python script to convert a video (.MP4) into an audio file (.MP3) on a Django server. To achieve this, I am using the Moviepy library but when I run the script, I get the following error :

  



  Internal Server Error: /test/
Traceback (most recent call last):
  File "C:\Users\etsho\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\etsho\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\handlers\base.py", line 126, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\etsho\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\handlers\base.py", line 124, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\etsho\AppData\Local\Programs\Python\Python38\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\shoe\musicsite\main\views.py", line 29, in test
    video = VideoFileClip(os.path.join(basePath + ".mp4"))
  File "C:\Users\etsho\AppData\Local\Programs\Python\Python38\lib\site-packages\moviepy\video\io\VideoFileClip.py", line 88, in __init__
    self.reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt,
  File "C:\Users\etsho\AppData\Local\Programs\Python\Python38\lib\site-packages\moviepy\video\io\ffmpeg_reader.py", line 34, in __init__
    self.fps = infos['video_fps']
KeyError: 'video_fps'
[15/Nov/2019 23:49:43] "POST /test/ HTTP/1.1" 500 80909


  



  There's practically no information about this error or how to solve it that I could find, so any help or insight would be much appreciated.

  



  Here is my Python script (views.py) :

  



  import pyodbc, json, pytube
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
from rest_framework import parsers
import os
from moviepy.editor import *

@csrf_exempt
def test(request):
if request.method == 'POST':
    filePath = 'C:\\Users\\etsho\\Music\\'

    #retrieve url from app
    body_unicode = request.body.decode('utf-8')
    body = json.loads(body_unicode)
    videoURL = body['url']

    print("before download")

    #download youtube video
    youtube = pytube.YouTube(videoURL)
    videoTitle = youtube.title
    video = youtube.streams.filter(only_audio=True).first()
    freshDownload = video.download(filePath)

    print("after download")

    basePath, extension = os.path.splitext(freshDownload)
    video = VideoFileClip(os.path.join(basePath + ".mp4"))
    video.audio.write_audiofile(os.path.join(basePath + ".mp3"))

    print("video converted")



return HttpResponse("")


  


• Whatsapp FFMPEG thumbnail is not showing

  7 avril 2020, par Youssof H.

  I want to run a command that will add an image as a thumbnail to a video. The video will be shared by WhatsApp with a thumbnail showing up.

  



  The problem is that after running the following command thumbnails don't show up in Whatsapp though it shows on Windows 10.

  



  ffmpeg -i path/to/Video.mp4 -i path/to/Video.png -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic -strict -2 path/to/out.mp4


  



  And another problem is that the video with a thumbnail doesn't play on Android, iPhone, Windows, nor on Linux.

  



  Log :

  



  ffmpeg version 4.1.4-1+rpt1~deb10u1 2000-2019 the FFmpeg developers
  built with gcc 8 (Debian)
  configuration: --prefix=/usr --extra-version='1+rpt1~deb10u1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --arch=arm --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
[libaom-av1 @ 0x5b7130] v1.0.0
Input #0, matroska,webm, from 'Video.mp4':
  Metadata:
    COMPATIBLE_BRANDS: iso6av01mp41
    MAJOR_BRAND     : dash
    MINOR_VERSION   : 0
    ENCODER         : Lavf58.20.100
  Duration: 00:03:30.70, start: -0.007000, bitrate: 213 kb/s
    Stream #0:0: Video: av1 (Main), yuv420p(tv, bt709), 256x144, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      HANDLER_NAME    : ISO Media file produced by Google Inc.
      DURATION        : 00:03:30.627000000
    Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
    Metadata:
      DURATION        : 00:03:30.701000000
Input #1, image2, from 'Video.png':
  Duration: 00:00:00.04, start: 0.000000, bitrate: 23403 kb/s
    Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
[mp4 @ 0x625260] track 2: codec frame size is not set
Output #0, mp4, to 'out.mp4':
  Metadata:
    COMPATIBLE_BRANDS: iso6av01mp41
    MAJOR_BRAND     : dash
    MINOR_VERSION   : 0
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg (mp4v / 0x7634706D), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 25 tbr, 12800 tbn, 25 tbc
    Stream #0:1: Video: av1 (Main) (av01 / 0x31307661), yuv420p(tv, bt709), 256x144, q=2-31, 23.98 fps, 23.98 tbr, 16k tbn, 1k tbc (default)
    Metadata:
      HANDLER_NAME    : ISO Media file produced by Google Inc.
      DURATION        : 00:03:30.627000000
    Stream #0:2(eng): Audio: opus (Opus / 0x7375704F), 48000 Hz, stereo, fltp (default)
    Metadata:
      DURATION        : 00:03:30.701000000
Stream mapping:
  Stream #1:0 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (copy)
  Stream #0:1 -> #0:2 (copy)
Press [q] to stop, [?] for help
frame=    1 fps=0.0 q=-1.0 q=-1.0 size=    3840kB time=00:02:47.56 bitrate= 187.frame=    1 fps=0.0 q=-1.0 Lq=-1.0 size=    5632kB time=00:03:30.68 bitrate= 219.0kbits/s speed= 324x    
video:2275kB audio:3221kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.464468%



  



  What am I doing wrong ?

  



  Note : It's okay if it works with python.