STRUCT AMVDEC_CODEC_OPS(9)

💅 struct amvdec_codec_ops(9) — like, the codec operations manual, bestie

okay so this is a page from the Kernel API Manual, and it's all about struct amvdec_codec_ops — the little struct of function pointers that tells the meson vdec codec how to, you know, do codec things. 🎀 pull up a chair, we're getting into it.

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✨ NAME ✨

struct amvdec_codec_ops — codec operations. that's it, that's the vibe. 🦋

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🌸 SYNOPSIS 🌸

here's the whole struct, character for character, no cap:

struct amvdec_codec_ops {
    int (*start)(struct amvdec_session *sess);
    int (*stop)(struct amvdec_session *sess);
    int (*load_extended_firmware)(struct amvdec_session *sess, const u8
*data, u32 len);
    u32 (*num_pending_bufs)(struct amvdec_session *sess);
    int (*can_recycle)(struct amvdec_core *core);
    void (*recycle)(struct amvdec_core *core, u32 buf_idx);
    void (*drain)(struct amvdec_session *sess);
    void (*resume)(struct amvdec_session *sess);
    const u8 * (*eos_sequence)(u32 *len);
    irqreturn_t (*isr)(struct amvdec_session *sess);
    irqreturn_t (*threaded_isr)(struct amvdec_session *sess);
 };

like, look at all those function pointers. main character energy fr fr. 👑

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🧚 DESCRIPTION 🧚

Members 🌈

okay so here's the tea on every single member. all of them. i'm not skipping a single one, that would be so rude to the kernel. 💖

• start — mandatory call, bestie! this is what fires when the codec needs to initialize. no start, no start. 😭
• stop — also mandatory. this one goes off when the codec needs to stop. the responsible icon of the group. 🫶
• load_extended_firmware — optional call to load additional firmware bits. extra firmware? extra ✨bits✨? we love to see it.
• num_pending_bufs — optional call to get the number of dst buffers on hold. literally just counting the buffers that are waiting. 💅
• can_recycle — optional call to know if the codec is ready to recycle a dst buffer. vibe check for buffers, basically.
• recycle — optional call to tell the codec to recycle a dst buffer. ⚠️ Must go in pair with can_recycle — they're a package deal, don't split them up, that's giving toxic. 🚩
• drain — optional call if the codec has a custom way of draining. custom draining, how fancy. 🍓
• resume — optional call to resume after a resolution change. the comeback era after the resolution glow-up. 🦋
• eos_sequence — optional call to get an end sequence to send to esparser for flush. ⚠️ Mutually exclusive with drain — pick one, you can't have both, that's the rule. 🙈
• isr — mandatory call when the ISR triggers. interrupts know when to call, and they call this. 🔥
• threaded_isr — mandatory call for the threaded ISR. the threaded version of the above, and yes it's also mandatory. periodt. 👑

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⭐ SEE ALSO ⭐

go look at the kernel file ./drivers/staging/media/meson/vdec/vdec.h struct, plus all these icon pages:

• amvdec_timestamp(9)
• struct amvdec_core(9)
• struct amvdec_ops(9)
• struct amvdec_format(9)
• struct amvdec_session(9)

iykyk, they're all linked together. 🎀

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okay bestie, that's the whole page — same facts, way better vibes. now go initialize some codecs responsibly. 💜

source: ./drivers/staging/media/meson/... · version/date: October 2026 · page: struct amvdec_codec_ops(9) — slay, bye! 💅✨