GIF搜索创建

Requirements

Required for creating GIFs:

• - ffmpeg — video to GIF conversion

Optional:

• - gifsicle — post-optimization (reduces size 30-50%)
• INLINECODE2 — for Giphy search API
• INLINECODE3 — for Tenor search API

Where to Find GIFs

Creating GIFs with FFmpeg

Always use palettegen (without it, colors look washed out):

ffmpeg -ss 0 -t 5 -i input.mp4 \
  -filter_complex "fps=10,scale=480:-1:flags=lanczos,split[a][b];[a]palettegen[p];[b][p]paletteuse" \
  output.gif

Post-Optimization

If gifsicle is available:
CODEBLOCK1

Reduces size 30-50% with minimal quality loss.

Video Alternative

For web, use video instead of large GIFs (80-90% smaller):

CODEBLOCK2

Accessibility

• - WCAG 2.2.2: Loops >5s need pause control
• prefers-reduced-motion: Show static image instead
• Alt text: Describe the action ("Cat jumping off table")
• Three flashes: Nothing >3 flashes/second (seizure risk)

Common Mistakes

• - No palettegen in FFmpeg — colors look terrible
• FPS >15 — file size explodes for no visual benefit
• No lazy loading on web — blocks page load
• Using huge GIF where video would work — 10x larger

API Quick Reference

Giphy search:
CODEBLOCK3

Tenor search:
CODEBLOCK4