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Commit 3b1a1ebb authored by Hamad Kadmany's avatar Hamad Kadmany Committed by Stephen Boyd
Browse files

media: dvb: dvb-core: Expose API for section filtering 



Expose API from dvb_demux that performs only section
filtering without handling PES and Recording for cases
where PES/Recording is handled in HW while section
filtering is done in SW

Change-Id: I46cd0f778a63ef1a3230d230e24c578441428e19
Signed-off-by: default avatarHamad Kadmany <hkadmany@codeaurora.org>
parent 13499593

drivers/media/dvb-core/dvb_demux.c

+46 −0
Original line number Diff line number Diff line
@@ -473,6 +473,52 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf) 
	}

}



void dvb_dmx_swfilter_section_packets(struct dvb_demux *demux, const u8 *buf,

			      size_t count)

{

	struct dvb_demux_feed *feed;

	u16 pid = ts_pid(buf);

	struct timespec pre_time;



	if (dvb_demux_performancecheck)

		pre_time = current_kernel_time();



	spin_lock(&demux->lock);



	demux->sw_filter_abort = 0;



	while (count--) {

		if (buf[0] != 0x47) {

			buf += 188;

			continue;

		}



		if (demux->playback_mode == DMX_PB_MODE_PULL)

			if (dvb_dmx_swfilter_buffer_check(demux, pid) < 0)

				break;



		list_for_each_entry(feed, &demux->feed_list, list_head) {

			if (feed->pid != pid)

				continue;



			if (!feed->feed.sec.is_filtering)

				continue;



			if (dvb_dmx_swfilter_section_packet(feed, buf) < 0) {

				feed->feed.sec.seclen = 0;

				feed->feed.sec.secbufp = 0;

			}

		}

		buf += 188;

	}



	spin_unlock(&demux->lock);



	if (dvb_demux_performancecheck)

		demux->total_process_time += dvb_dmx_calc_time_delta(pre_time);

}

EXPORT_SYMBOL(dvb_dmx_swfilter_section_packets);



void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,

			      size_t count)

{

drivers/media/dvb-core/dvb_demux.h

+2 −0
Original line number Diff line number Diff line
@@ -140,6 +140,8 @@ struct dvb_demux { 


int dvb_dmx_init(struct dvb_demux *dvbdemux);

void dvb_dmx_release(struct dvb_demux *dvbdemux);

void dvb_dmx_swfilter_section_packets(struct dvb_demux *demux, const u8 *buf,

			      size_t count);

void dvb_dmx_swfilter_packets(struct dvb_demux *dvbdmx, const u8 *buf,

			      size_t count);

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