v4l2_m2m_encoder_cmd(9)

💅 v4l2_m2m_encoder_cmd(9) — like, the encoder-command one?? yes bestie

okay so first things first, we're in the Kernel API Manual today (yes the whole manual, we're fancy) and this page is all about v4l2_m2m_encoder_cmd. one function. one job. let's get into it 🎀

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✨ NAME ✨

v4l2_m2m_encoder_cmd — bestie, it executes an encoder command. that's the whole vibe. no cap. 🔥

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🌸 SYNOPSIS 🌸

int v4l2_m2m_encoder_cmd (struct file *file , struct v4l2_m2m_ctx
*m2m_ctx , struct v4l2_encoder_cmd *ec );

like the signature says — it returns an int, and it takes three things. which brings us to…

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🦋 ARGUMENTS 🦋

• file — pointer to struct file. the file, babes. it's giving "who are you and why are you here". 💜
• m2m_ctx — the m2m context assigned to the instance, given by struct v4l2_m2m_ctx. this is the main character of the whole m2m situation, honestly. 👑
• ec — pointer to the encoder command. the actual command itself!! the whole point!! ⭐

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💖 SEE ALSO 💖

okay this list is LONG but we do not skip. we do not skim. every single one, in order, periodt. 😤

• Kernel file ./include/media/v4l2-mem2mem.h
• struct v4l2_m2m_ops(9)
• struct v4l2_m2m_queue_ctx(9)
• struct v4l2_m2m_ctx(9)
• struct v4l2_m2m_buffer(9)
• v4l2_m2m_get_curr_priv(9)
• v4l2_m2m_get_vq(9)
• v4l2_m2m_try_schedule(9)
• v4l2_m2m_job_finish(9)
• v4l2_m2m_buf_done_and_job_finish(9)
• v4l2_m2m_clear_state(9)
• v4l2_m2m_mark_stopped(9)
• v4l2_m2m_dst_buf_is_last(9)
• v4l2_m2m_has_stopped(9)
• v4l2_m2m_is_last_draining_src_buf(9)
• v4l2_m2m_last_buffer_done(9)
• v4l2_m2m_suspend(9)
• v4l2_m2m_resume(9)
• v4l2_m2m_reqbufs(9)
• v4l2_m2m_querybuf(9)
• v4l2_m2m_qbuf(9)
• v4l2_m2m_dqbuf(9)
• v4l2_m2m_prepare_buf(9)
• v4l2_m2m_create_bufs(9)
• v4l2_m2m_expbuf(9)
• v4l2_m2m_streamon(9)
• v4l2_m2m_streamoff(9)
• v4l2_m2m_update_start_streaming_state(9)
• v4l2_m2m_update_stop_streaming_state(9)
• v4l2_m2m_decoder_cmd(9)
• v4l2_m2m_poll(9)
• v4l2_m2m_mmap(9)
• v4l2_m2m_init(9)
• v4l2_m2m_release(9)
• v4l2_m2m_get(9)
• v4l2_m2m_put(9)
• v4l2_m2m_ctx_init(9)
• v4l2_m2m_ctx_release(9)
• v4l2_m2m_buf_queue(9)
• v4l2_m2m_num_src_bufs_ready(9)
• v4l2_m2m_num_dst_bufs_ready(9)
• v4l2_m2m_next_buf(9)
• v4l2_m2m_next_src_buf(9)
• v4l2_m2m_next_dst_buf(9)
• v4l2_m2m_last_buf(9)
• v4l2_m2m_last_src_buf(9)
• v4l2_m2m_last_dst_buf(9)
• v4l2_m2m_for_each_dst_buf(9)
• v4l2_m2m_for_each_src_buf(9)
• v4l2_m2m_for_each_dst_buf_safe(9)
• v4l2_m2m_for_each_src_buf_safe(9)
• v4l2_m2m_get_src_vq(9)
• v4l2_m2m_get_dst_vq(9)
• v4l2_m2m_buf_remove(9)
• v4l2_m2m_src_buf_remove(9)
• v4l2_m2m_dst_buf_remove(9)
• v4l2_m2m_buf_remove_by_buf(9)
• v4l2_m2m_src_buf_remove_by_buf(9)
• v4l2_m2m_dst_buf_remove_by_buf(9)
• v4l2_m2m_buf_copy_metadata(9)

like… that's everyone. we got the ops, we got the queues, we got the bufs, we got the removes, we got the safe variants, we got the whole m2m friend group. iykyk 🫶

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ngl if you skipped the SEE ALSO list you're not my bestie anymore. go back up. i'll wait. 💀

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and that's the page!! ty for reading, mwah 💋 the source lives at ./include/media and this whole thing is dated October 2026 — so yeah, future-bestie energy. go compile something iconic ✨🧚‍♀️💜