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

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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: Hamad Kadmany <hkadmany@codeaurora.org>
This commit is contained in:
Hamad Kadmany 2012-08-02 10:07:21 +03:00 committed by Stephen Boyd
parent 669e9398c0
commit bdf616e652
2 changed files with 48 additions and 0 deletions
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46
drivers/media/dvb/dvb-core/dvb_demux.c
View file

@ -685,6 +685,52 @@ 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)
{

2
drivers/media/dvb/dvb-core/dvb_demux.h
View file

@ -179,6 +179,8 @@ 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);