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• Unable to find a suitable output format for 'is' is : Invalid argument in fmmpeg

  26 janvier 2023, par Test000

  I want to make a python script to make a video in FFmpeg. I try a lot of solutions for example but I do not know Why I do not have permission to write. I have not any idea because ffmpeg errors are a little bit tricky

  


  my code :

  


  import os
import cv2

def calculate_quote_position(quote, max_length, video_width, video_height):
    if len(quote) > max_length:
        print("Quote is too long for the video.")
        return
    
    # Determine font size and alignment
    font = cv2.FONT_HERSHEY_SIMPLEX
    font_scale = 1.0
    thickness = 2
    (text_width, text_height), _ = cv2.getTextSize(quote, font, font_scale, thickness)
    
    # Calculate position for the quote
    x = int((video_width - text_width) / 2)
    y = int((video_height + text_height) / 2)
    
    return (x, y, text_width, text_height)

def create_video_from_audio_quote_picture(music_file, quote, font, font_size, font_color, background_picture, output_file, video_duration, video_width, video_height, max_length):
    quote_position = calculate_quote_position(quote, max_length, video_width, video_height)
    if not quote_position:
        print("The quote is too long for the video.")
        return
    # Create the FFmpeg command
    command = f"ffmpeg -loop 1 -t {video_duration} -i {background_picture} -i {music_file} -vf drawtext='fontfile={font}':text={quote}:fontcolor={font_color}:fontsize={font_size}:x={quote_position[0]}:y={quote_position[1]}' -shortest -c:v libx264 -c:a aac {output_file}"

    # Execute the command
    os.system(command)

music_file = "music.mp3"
quote = "This is a quote"
font = "Raleway-Bold.ttf"
font_size = 20
font_color = "white"
background_picture = "nature.png"
output_file = r"C:\Users\Lukas\Dokumenty\python_scripts\Billionare livestyle\output.mp4"
video_duration = 30
video_width = 1920
video_height = 1080
max_length = 30

create_video_from_audio_quote_picture(music_file, quote, font, font_size, font_color, background_picture, output_file, video_duration, video_width, video_height, max_length)


  


  my error :

  


  Input #0, image2, from 'nature.png':
  Duration: 00:00:00.04, start: 0.000000, bitrate: 569438 kb/s
  Stream #0:0: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 72:72 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
Input #1, mp3, from 'music.mp3':
  Metadata:
    date            : 2020:12:15 01:00:00
    title           : Otnicka - Peaky Blinder (lyrics) | i am not outsider i'm a peaky blinder
    artist          : Jigzaw
    encoder         : Lavf58.29.100
  Duration: 00:02:31.78, start: 0.023021, bitrate: 128 kb/s
  Stream #1:0: Audio: mp3, 48000 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavf
  Stream #1:1: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 320x240 [SAR 1:1 DAR 4:3], 90k tbr, 90k tbn, 90k tbc (attached pic)
    Metadata:
      comment         : Other
[NULL @ 000001575c0b0100] Unable to find a suitable output format for 'is'
is: Invalid argument


  


• drawbox around text with dynamic height in ffmpeg

  9 mars 2018, par Anuj TBE

  I’m working on a ffmpeg script to draw text over image/video.

  The text will be wrapped inside a box with full width and dynamic height.

  I have tried two approach to achieve this.

  1. using drawbox

  ffmpeg \
  
  -loop 1 -i /path_to_file/file.jpg \
  
  -t 5 -vf
  
  "scale=320:320,\
  
  drawbox=y=0\
  
  :color=#00FF29\
  
  :width=iw\
  
  :height=72\
  
  :t=max,\
  
  drawtext=text=TBE\
  
  :fontcolor=#F71DFF\
  
  :fontsize=82:x=(w-text_w)/2\
  
  :y=text_h/2" 
  
  /path_to_file/new_file.mp4 -y

  Which renders following three examples with different value of fontsize

  

  2. using box of drawtext

  ffmpeg -i in3.png -t 5 -vf drawtext=" \
  
  text='Stack Overflow': fontcolor=white: fontsize=54: box=1: boxcolor=black@0.5: \
  
  boxborderw=10: x=(w-text_w)/2: y=(h-text_h)/2" -codec:a copy output_new.mp4

  

  Half of the requirement is being fullfiled by drawbox (full width box) and half using drawtext box (box height according to text).

  How can I achieve both (full box width with dynamic height according to height of text) in ffmpeg ?

• Merge commit ’a6653787a4b1e89170ff7962312dd110769c83a3’

  3 février 2015, par Michael Niedermayer

  Merge commit ’a6653787a4b1e89170ff7962312dd110769c83a3’
  * commit ’a6653787a4b1e89170ff7962312dd110769c83a3’ :
  
    libopencv : Check kernel_str life cycle
  Conflicts :
  
  	libavfilter/vf_libopencv.c
  See : f16a6f667c993a158643b52815ec42961508b0a9
  
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavfilter/vf_libopencv.c