FFmpeg Utilities

doc

https://ffmpeg.org/ffmpeg-utils.html

• (ffmpeg-utils)2.1. Syntax | Quoting and escaping
• (ffmpeg-utils)2.2. Syntax | Date
• (ffmpeg-utils)2.3. Syntax | Time duration
• (ffmpeg-utils)2.4. Syntax | Video size
  • the name of a size abbreviation
• (ffmpeg-utils)2.5. Syntax | Video rate
• (ffmpeg-utils)2.6. Syntax | Ratio
• (ffmpeg-utils)2.7. Syntax | Color
  • named colors
• (ffmpeg-utils)2.8. Syntax | Channel Layout
• (ffmpeg-utils)3. Expression Evaluation
  • Constants
  • Functions
    • print(t), time(0)
    • Logical functions
    • bitand(x, y), bitor(x, y)
    • Trigonometric functions
    • Inverse trigonometric functions
    • Hyperbolic functions
    • sgn(x)
    • clip(x, min, max), max(x, y), min(x, y)
    • abs(x), mod(x, y)
    • ceil(expr), floor(expr), trunc(expr), round(expr)
    • lerp(x, y, z)
    • gcd(x, y)
    • exp(x), gauss(x), squish(x)
    • pow(x, y), sqrt(expr), hypot(x, y), log(x)
    • random(x)
    • st(var, expr), ld(var)
    • while(cond, expr)
    • root(expr, max)
    • taylor(expr, x), taylor(expr, x, id)
  • the International System unit prefixes
• (ffmpeg-utils)3. Expression Evaluation (2)
  • sinc(x)
  • expm1(x), log1p(x), cosm1(x)
  • lcm(x, y)
  • dim(x, y)
  • Window functions
    • bartlett(n, M)
    • hanning(n, M)
    • hamming(n, M)
    • blackman(n, M)