nal_hevc_read_sps(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nal_hevc_read_sps — bestie's guide to the Kernel API Manual ✨

okay so this is nal_hevc_read_sps(9), straight out of the Kernel API Manual, and it's literally the glow-up your SPS needed 🎀 it reads an SPS NAL unit from RBSP format and honestly? iconic.

✨ NAME ✨

nal_hevc_read_sps — read an SPS NAL unit from RBSP format, no cap 🦋

🌸 SYNOPSIS 🌸

ssize_t nal_hevc_read_sps (const struct device *dev , struct
       nal_hevc_sps *sps , void *src , size_t n );
bestie pls keep the spacing exactly like that when you paste it, she's sensitive 💅

💖 ARGUMENTS 💖

  • dev — the device pointer 🫶 your main character device, right there
  • sps — the struct nal_hevc_sps you're gonna fill from the RBSP data ✨ she arrives empty and leaves full, we love a transformation arc
  • src — the buffer that contains the RBSP data 🍓 this is where the good stuff lives
  • n — size of src in bytes 📏 in bytes!! don't come at her with elements or vibes, it's bytes

🦋 DESCRIPTION 🦋

Read RBSP data from src and use it to fill sps. that's it, that's the whole vibe 🌈 she takes your buffer, reads the RBSP data, and populates the struct — lowkey simple, highkey essential 😭

👑 RETURN 👑

returns the number of bytes read from src, or a negative error code 💀 so like... if it's negative, that's your sign, bestie — error arc, not slay arc 🙈

🌟 SEE ALSO 🌟

  • Kernel file ./drivers/media/platform/allegro-dvt/nal-hevc.c — go read the source, iykyk 💜

and the whole NAL squad, fr fr:

mwah 💋 that's the page! this lil doc came from ./drivers/media/platform/alleg... and she's dated October 2026 — shoutout to the source and the version for keeping it real, and to nal_hevc_read_sps(9) for being the actual moment 🧚‍♀️⭐

📦 where this page comes from