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Autres articles (64)

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    This page lists some websites based on MediaSPIP.

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    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
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    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
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Sur d’autres sites (11087)

  • ffmpeg how to make moving text smooth ?

    27 mars 2019, par Recessive

    I have the following command for creating scrolling text from a text file :

    ffmpeg -i vid.mp4 -vf "[in]drawtext=fontfile=C\\:/Windows/Fonts/arial.ttf:fontsize=25:fontcolor=black:x=30:y=h-n*5:textfile='credits.txt'[out]" -c:v libx264 -max_muxing_queue_size 1024 scrolling.mp4

    This will slowly move the text found in credits.txt upwards, but does so discretely every second, rather then smoothly over time. The section that controls this is the y=h-n*5, where n is the frame number I believe, which I thought would be updated every frame, but appears it behaves exactly the same as if I were to replace it with t.

    If anyone knows of any way of smoothly moving text using ffmepg, or any other method at all such as image magick, that would be greatly appreciated.

  • Multiline text into comment field in ffmpeg metadata

    18 avril 2013, par decss

    I use ffmpeg to update metadata tags like this way :

    ffmpeg -i "in.m4a" -acodec copy -metadata artist="artist text"
    
-metadata comment="comment text" "out.m4a"

    Well, "artist text" and "comment text" is usual plain text, but comment field allows to put multiline text. Each line must have new line character to do it. Something like this :

    -metadata comment="source: lastfm \r\n tags: tag1, tag2 \r\n ..."

    But all characters that I use (\r\n, %nl%, ^N) bring no result.

    Oh, i forgot to notice :
    I run ffmpeg.exe from PHP script on Windows using shell_exec() function

  • How to hide text after specific location in scroll

    18 juillet 2019, par kiara

    I have ffmpeg code which have a image overlay on top of tht. I am adding a scrolling text. Now I want this text to rotate till a specific position like breaking news on channel but I am not able to figure out the command. Can anybody help ?

    This is what I am trying

    ffmpeg -i video.mp4  -i image.png -filter_complex "[0:v]overlay=25:25,drawtext=text='abcddgfs fgshrhtr':fontfile=/usr/share/fonts/truetype/ubuntu/Ubuntu-B.ttf:y=h-line_h-110:x=w-mod(max(t-2.5\,0)*(w·25)/7.5\,(w·250)):fontcolor=red:fontsize=40:shadowx=2:shadowy=2" -t 15 -y a.mp4

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