stv0g/tvheadend
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

linuxdvb: make the status period (read times) configurable

Browse source
This commit is contained in:
Jaroslav Kysela 2015-01-17 19:14:23 +01:00
parent f157e1818d
commit dafea1a693
3 changed files with 20 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
docs/html/config_tvadapters.html
View file

@ -76,6 +76,14 @@ The rows have the following functions
<dt><b>Input Buffer (Bytes)</b></dt>
<dd>By default, linuxdvb input buffer is 18800 bytes long. The accepted
range is 18800-1880000 bytes.</dd>
<p>
<dt><b>Status Period</b></dt>
<dd>By default, linuxdvb status read period is 1000ms (one second). The
accepted range is 250ms to 8000ms. Note that for some hardware /
drivers (like USB), the status operations takes too much time and CPU.
In this case, increase the default value. For fast hardware, this value
might be descreased to make the decision of the re-tune algorithm
based on the signal status faster.</dd>
</dl>
<p>

14
src/input/mpegts/linuxdvb/linuxdvb_frontend.c
View file

@ -113,6 +113,13 @@ const idclass_t linuxdvb_frontend_class =
.opts = PO_ADVANCED,
.off = offsetof(linuxdvb_frontend_t, lfe_ibuf_size),
},
{
.type = PT_U32,
.id = "status_period",
.name = "Status Period (ms)",
.opts = PO_ADVANCED,
.off = offsetof(linuxdvb_frontend_t, lfe_status_period),
},
{}
}
};
@ -491,6 +498,7 @@ linuxdvb_frontend_monitor ( void *aux )
streaming_message_t sm;
service_t *s;
int logit = 0, retune;
uint32_t period = MIN(MAX(250, lfe->lfe_status_period), 8000);
#if DVB_VER_ATLEAST(5,10)
struct dtv_property fe_properties[6];
struct dtv_properties dtv_prop;
@ -526,7 +534,7 @@ linuxdvb_frontend_monitor ( void *aux )
if (!mmi || !lfe->lfe_ready) return;
/* re-arm */
gtimer_arm(&lfe->lfe_monitor_timer, linuxdvb_frontend_monitor, lfe, 1);
gtimer_arm_ms(&lfe->lfe_monitor_timer, linuxdvb_frontend_monitor, lfe, period);
/* Get current status */
if (ioctl(lfe->lfe_fe_fd, FE_READ_STATUS, &fe_status) == -1) {
@ -609,10 +617,9 @@ linuxdvb_frontend_monitor ( void *aux )
lfe->lfe_monitor = dispatch_clock + 1;
}
} else {
/* Monitor 1 per sec */
if (dispatch_clock < lfe->lfe_monitor)
return;
lfe->lfe_monitor = dispatch_clock + 1;
lfe->lfe_monitor = dispatch_clock + (period + 999) / 1000;
}
/* Statistics - New API */
@ -1441,6 +1448,7 @@ linuxdvb_frontend_create
strncpy(lfe->lfe_name, name, sizeof(lfe->lfe_name));
lfe->lfe_name[sizeof(lfe->lfe_name)-1] = '\0';
lfe->lfe_ibuf_size = 18800;
lfe->lfe_status_period = 1000;
lfe = (linuxdvb_frontend_t*)mpegts_input_create0((mpegts_input_t*)lfe, idc, uuid, conf);
if (!lfe) return NULL;

1
src/input/mpegts/linuxdvb/linuxdvb_private.h
View file

@ -117,6 +117,7 @@ struct linuxdvb_frontend
int lfe_tune_repeats;
uint32_t lfe_skip_bytes;
uint32_t lfe_ibuf_size;
uint32_t lfe_status_period;
/*
* Satconf (DVB-S only)