dvb_dmx_swfilter(9)

💫 dvb_dmx_swfilter(9) 💫

okay so bestie, welcome to the Kernel API Manual page for dvb_dmx_swfilter — yes that's a lot of consonants, we love her anyway 🫶

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✨ NAME ✨

dvb_dmx_swfilter — this is the routine that runs the dvb software filter over a whole buffer stuffed with multiple MPEG-TS packets, each one 188 bytes. Iconic little byte-sized situation 💅

🦋 SYNOPSIS 🦋

void dvb_dmx_swfilter (struct dvb_demux *demux , const u8 *buf , size_t count );

🎀 ARGUMENTS 🎀

• demux — pointer to struct dvb_demux. she's the main character of this function ngl 🌟
• buf — the buffer holding the data we're about to filter 🍓
• count — how many MPEG-TS packets, each of size 188, live in there. literally just the packet count, no cap 🔢

💖 DESCRIPTION 💖

so here's the tea ☕ — if a DVB packet does not start with 0x47, this function will go seeking for the first byte that starts with 0x47. like, she hunts it down. periodt 🔥

and here's when you'd actually reach for her: use this routine if the DVB demux fill buffers that may not start with a packet start mark (0x47). that's the whole vibe check right there 💫

🌸 NOTE 🌸

bestie pls — the buf size should have size equal to count * 188. do the math, don't just vibe and hope 😭

🌈 SEE ALSO 🌈

Kernel file ./include/media/dvb_demux.h — and the whole friend group:

• enum dvb_dmx_filter_type(9)
• enum dvb_dmx_state(9)
• struct dvb_demux_filter(9)
• struct dvb_demux_feed(9)
• struct dvb_demux(9)
• dvb_dmx_init(9)
• dvb_dmx_release(9)
• dvb_dmx_swfilter_packets(9)
• dvb_dmx_swfilter_204(9)
• dvb_dmx_swfilter_raw(9)

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and that's the page, bestie 🧚💜 mwah! this one came straight out of ./include/media, living in the October 2026 era of the Kernel API Manual, and yes she's still dvb_dmx_swfilter(9) in case you forgot already 😌🎀