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• Overlays with subtitle with multiple text in ffmpeg

  26 novembre 2020, par Konduri Sai Aditya

  I have the following query. please find images
I have two inputs one is bg.png,( background-color), another one is baby webm
with two texts one is "Double click to edit" which back of baby.webm and other "adi" which overlayed on baby.webm

  


  My command is

  


  ffmpeg -loop 1 -i bg.png -vcodec libvpx-vp9 -stream_loop -1 -i baby.webm -y -filter_complex "[0]subtitles=subs.ass:fontsdir=/fonts/Dancing_Script.ttf[sub];[1:v]scale=1076:606[scale1];[scale1]rotate=0:c=black@0:ow=rotw(0):oh=roth(0)[rotate1];[sub][rotate1]overlay=x=684.57:y=357.98,subtitles=subs.ass:fontsdir=/fonts/Times_New_Roman-400.ttf" -pix_fmt yuv420p -t 10 ip.mp4


  


  But the output I got is

  


  If you check the difference text overlay pattern, there is a difference in an overlay pattern. How can I achieve output the same as the input ?

  


  above is .ass file

  


  [Script Info]
; Script generated by Aegisub 3.2.2
; http://www.aegisub.org/
Title: Default Aegisub file
ScriptType: v4.00+
WrapStyle: 0
ScaledBorderAndShadow: no
YCbCr Matrix: None
PlayResX: 1920
PlayResY: 1080

[Aegisub Project Garbage]
Last Style Storage: Default

[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Dancing Script,121.1,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,0,0,0,7,0,0,0,1
Style: Default,Times New Roman,216,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,0,0,0,7,0,0,0,1


[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.00,0:00:05.00,Default,,0,0,0,,Double click to edit {\fnDancing Script\pos(430,514)}
Dialogue: 0,0:00:00.00,0:00:05.00,Default,,0,0,0,,Adi {\fnTimes New Roman\pos(1051,681)\fs216}


  


• Powershell script for ffmpeg mkv—>mp4 remuxing ?

  15 août 2019, par crioxide

  I am interested in writing a Powershell script that calls ffmpeg to remux a series of videos from mkv to mp4 and converts subtitle track 1 of all these files to hard subs. I have never used these CLI programs like this before so this is difficult for me to figure out (I’ve had to resort to doing this task this way after getting frustrated with all the half-assed GUI solutions out there that can’t do the job). Can I get some help please ?

  AND can someone enlighten me how I can learn more about these pieces of software so I don’t have to go begging for solutions online anymore ?

• Images converted to webp with ffmpeg have multiple frames [closed]

  25 avril 2023, par jhizzle207

  Running into an issue where JPG images converted to webp via ffmpeg are coming out with multiple frames, and causing issues such as the flickering example below

  


  https://shocknet.b-cdn.net/bffff44b0252dee213885a6f640fa211d622d02f80413d9e5415245a91fd9027%2FIMG_6915.webp

  


  Others have a grayscale layer that makes the image display as black and white.

  


  We're using ffmpeg defaults and -vf to scale them down. We have tried -c:v libwebp as the default lib seems to be an animation, but that's not stopping the output from containing multiple frames and causing issues.

  


  What would be the correct way to take images of other formats and dimensions and scale them to sane webp for optimal delivery reliability ?