H.264
Advanced Video Coding (AVC)
The most widely used video codec, balancing compression efficiency with broad hardware and software compatibility.
التفاصيل التقنية
Video h.264 relies on temporal and spatial redundancy. Intra-frame compression (I-frames) encodes complete images, while inter-frame compression (P-frames, B-frames) stores only the differences between frames. H.264/AVC remains the most compatible codec. H.265/HEVC achieves ~40% better compression but has patent licensing costs. VP9 (royalty-free, Google) and AV1 (royalty-free, Alliance for Open Media) offer similar or better compression. AV1 encoding is ~10x slower than H.264 but decoding is efficient on modern hardware.
مثال
``` Video codec comparison (1080p, 1 minute): H.264 (AVC): ~15 MB @ 2 Mbps — universal support H.265 (HEVC): ~10 MB @ 1.5 Mbps — 40% smaller, patent costs VP9: ~10 MB @ 1.5 Mbps — royalty-free (Google) AV1: ~8 MB @ 1 Mbps — royalty-free, best quality Encoding speed: H.264 > VP9 > H.265 >> AV1 (10x slower) ```
أدوات ذات صلة
R
Resolution Reference
B
Bitrate Calculator
F
Frame Rate Converter
T
Timecode Calculator
A
Aspect Ratio Calculator
F
File Size Estimator
S
Speed & Slow-Mo Calculator
S
Storage Planner
S
Subtitle Time Converter
B
Bandwidth Calculator
C
Color Space Reference
C
Codec Reference
P
Platform Specs Guide
C
Chroma Subsampling Guide
S
Screen Recording Guide