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• Segmenting a video and adding text that differs in each segment [FFMPEG]

  31 octobre 2023, par Kal-Toh

  I have a folder full of videos I want to segment, resize and add text to. So far I've managed to segment and resize them.

  


  I'm trying to add text in a TikTok Style : [Kind of like][1] this but black text in a white background. (If that isn't possible, I'd be fine with just white text).

  


  I already have the font file(.oft file type, is that ok or does it need to be .ttf ?)
The video is being converted to 720x1280 (9:16) and I'd like the text to display at the top centre of the video, taking up roughly the top 25%.

  


  Further to this, and this is where I'm having trouble understanding the process :

  


  I'd like text at the bottom of the video in the same style, that would change each segment.

  


  For example :

  


  I have a 10 minute long video. I want to split this video into 60 second segments. Each segment will have a title (the same across each segment) and a sub title at the bottom that would differ for each segment (for example 'Part 1/10', 'Part 2/10' etc)

  


  I know I could run one command to segment each video, add the title and change the aspect ratio and a second command to add the bottom text, feeding in a variable based on the number of mp4 files in the folder, however that doesn't seem like the most efficient process. Is there a way to do this all in one command ?

  


  This is the command I'm using so far :

  


  ffmpeg_command = [
            'ffmpeg',
            '-i', os.path.join(input_folder, video_file),
            '-vf', f'scale=720:1280:force_original_aspect_ratio=decrease,pad=720:1280:(ow-iw)/2:(oh-ih)/2
            ,drawtext=text=\'{text}\':x=(w-tw)/2:y=(h/4)-th:fontsize=24:fontfile={font_path}:fontcolor=black:box=1:boxcolor=white',
            '-threads', '100',
            "-c:a", "copy",
            '-t', str(duration),
            '-segment_time', '160',  # 3 minutes
            '-reset_timestamps', '1',
            '-f', 'segment',
            os.path.join(output_subfolder, f'{video_name}_%03d.mp4')
        ]


  


  Although not styled the way I want it to be, it's a decent start and all else works fine.

  


  It's just the bottom text I can't figure.
[1] : https://i.insider.com/61aa608a983f360019c854a5?width=1300&format=jpeg&auto=webp

  


• How use FFmpeg drawtext move the text along the red arrow, like the picture below

  16 novembre 2019, par fangqing

  FFmpeg Drawtext

  "sin" can achieve this effect, but I want the text to move along the line

• Adding text (titles) to video - ffmpeg vs ..?

  12 juin 2012, par Stpn

  is there a better (faster processing-wise & having more options) way to add titles (text) to video then ffmpeg ?

  Surely I can use "drawtext" in ffmpeg, but what would be the best way to go if I wanted to add an outline to font etc..?