EDITED TO REPRESENT GENERIC VERSION AS RECOMMENDED IN THIS THREAD

Howdy-

Commands changed with IVTV in R5F27. This is a version of the delayed_settings.sh script that reflects the command changes:

/usr/local/bin/delayed_settings.sh

Quote:

#!/bin/bash
# Uncomment this for debugging
#set -vx

DEVICE=$1
exec >>/tmp/changer$DEVICE.log 2>&1

# controls:
BRIGHTNESS=${2:-127} # Picture brightness, actually the black level. [0 - 255]
HUE=${3:-0} # Hue or color balance. [-128 - 127]
SATURATION=${4:-63} # Picture color saturation or chroma gain. [0 - 127]
CONTRAST=${5:-63} # Picture contrast or luma gain. [0 - 127]
VOLUME=${6:-60000} # Overall audio volume. [0 - 65535]

CTL_OPTS="-d /dev/video$DEVICE"
echo ; echo Settings before:
/usr/local/bin/v4l2-ctl -d /dev/video$DEVICE --get-ctrl=brightness,hue,saturation,contrast,volume
for i in 0 2 4 6 8 10 ; do
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl brightness=$BRIGHTNESS >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl hue=$HUE >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl saturation=$SATURATION >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl contrast=$CONTRAST >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl volume=$VOLUME >/dev/null

# Add any extra ivtvctl commands here, before the sleep.
/usr/local/bin/v4l2-ctl --set-audio-input 1 -d /dev/video$DEVICE >/dev/null

sleep 2
done
echo ; echo Settings after:
/usr/local/bin/v4l2-ctl -d /dev/video$DEVICE--get-ctrl=brightness,hue,saturation,contrast,volume

The set audio commands near the end reflect the fact that I have a pvr-150 that needs help with its audio.

I call this script from my channel change script, in this case, I use directv serial control:

/usr/local/bin/change1.pl


You will need to replace:

with whatever your channel change command is. Then, you will need to direct your channel change command in mythtv-setup to this script.

Also, you need to change the at the beginning of the script to a "1" for your second card channel change script.

A couple of references for these scripts:
http://mysettopbox.tv/phpBB2/viewtopic.php?t=10001&highlight=delayedsettings
http://mysettopbox.tv/phpBB2/viewtopic.php?t=11305&highlight=delayedsettings

-Loco

So far so good. I was having the audio problem at least 50% of the time with R5F27 and scheduled recordings. With these scripts I haven't seen one fail yet. Thanks for the help!

I did get the tinny sound once on "watch tv" with live tv. Have you had the problem at all with these scripts?

I have never had any issues and I have been running similar scripts since R5D1.

If you want to see the IVTV documentation for the commands used in the scripts, you can get the info here under the "UTILITIES" section.

-Loco

Your script should'nt be like this ?

Good point.

I did mess that up on the settings after line with the $DEVICE. However, I did mean to set both audio devices in my PVR audio fix lines....I just want to make sure that those inputs get set right all of the time.

The script you provided is more appicable to many more people as it is more generic.

I will alter the last line of my posted script....

Thanks!

In my case, running this script on my 2nd TV card, makes it mute.
my first one is using svideo and rca as inputs. 2nd one is using the TV tuner.
So I have to run the script just for my 1st card.

Actually, I don't have any audio problem with the second card with TV tuner. Only the first one with RCA audio input. Thank you for your script. I'm gonna see if it fixes the problem for me.

I think for the TV tuner you have to set an audio input other than 1. I believe that audio input 1 is the line in....

It looks like it is audio input 0 for the tuner. That might fix the mute issue. But if you have no audio issues for that card there is probably no reason to run this "fix' for it....



-Loco

you are right !!!!

I really thought was going to fix the tinny sound problem. At first I had a few typos in the scripts, and was still having the problem because delayed_settings.sh wasn't being called from change1.pl. Now the output in changer0.log looks good, but I'm still getting the tinny sound on about every other recording. Are there any other log files I could look at or any other way to diagnose this? I pasted in all the scripts involved in case anybody sees anything obviously wrong.

Thanks for the help so far.

Setting channel to 300
channel changing 300

Settings before:
brightness: 127
hue: 0
saturation: 0
contrast: 63
volume: 58880

Settings after:
brightness: 127
hue: 0
saturation: 0
contrast: 63
volume: 58880


Here's delayed_settings.sh:
#1/bin/bash
# Uncomment this for debugging
#set -vx

DEVICE=$1
exec >>/tmp/changer$DEVICE.log 2>&1

#controls
BRIGHTNESS=${2:-127} #Picture brightness. actually the balck level. {0 - 255]
HUE=${3:-0} #Hue or color balance [-128 -127]
SATRUATION=${4:-63} #Picture color saturation or chroma gain. [0 -127 ]
CONTRAST=${5:-63} #Picture contrast or luma gain. [0 - 127]
VOLUME=${6:-6000} #Overall audio volume. [0 - 65535]

CTL_OPTS="-d /dev/video$DEVICE"
echo ; echo Settings before:
/usr/local/bin/v4l2-ctl -d /dev/video$DEVICE --get-ctrl=brightness,hue,saturation,contrast,volume
for i in 0 2 4 6 8 10 ; do
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl brightness=$BRIGHTNESS >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl hue=$HUE >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl saturation=$SATURATION >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl contrast=$CONTRAST >/dev/null
/usr/local/bin/v4l2-ctl $CTL_OPTS --set-ctrl volume=$VOLUME >/dev/null

#add any extra ivtvctl commands here, before the sleep
/usr/local/bin/v4l2-ctl --set-audio-input 1 -d /dev/video$DEVICE >/dev/null

sleep 2
done
echo ; echo Settings after:
/usr/local/bin/v4l2-ctl -d /dev/video$DEVICE --get-ctrl=brightness,hue,saturation,contrast,volume

Here's change1.pl:
#!/bin/bash
# Uncomment this for debugging
#set -vx

DEVICE="0" # The PVR-250 card
exec >>/tmp/changer$DEVICE.log 2>$1

FREQ_TBL="us-cable" # Possibly "us-cable". "us-cable-hrc". ...
BRIGHTNESS=127 # Picture brightness. actually the black level
HUE=0 # Hue or color balance [-128 - 127]
SATURATION=63 # Picture color saturation or chroma gain. [0 - 127]
CONTRAST=63 # Picture contrast or luma gain. [0 - 127]
VOLUME=58880 # Overall audio vaolume. [0 - 65535]

export HOME=/home/mythtv
echo "Setting channel to $1"
#env
/usr/local/bin/change_channel $1
(nohup /usr/local/bin/delayed_settings.sh $DEVICE \
$BRIGHTNESS \
$HUE \
$SATURATION \
$CONTRAST \
$VOLUME & exit) &
exit 0


Here's my change_channel script:
#!/usr/bin/perl

# make sure to set this string to
# the corresponding remote in /etc/lircd.conf
$remote_name = "blaster";

# Let's assume you don't need to press enter after you punch in a
# channel number. Change this to 1 if your cable box expects you press
# enter after each command
$needs_enter = 0;

# Change this to point to your rc executable
$rc_command = "/usr/bin/irsend";

# This subroutine actually sends the signal to the cable box
sub change_SIGNAL {
my($SIGNAL) = @_;
system ("$rc_command SEND_ONCE $remote_name $SIGNAL");
}

$SIGNAL=$ARGV[0];
open F, ">> /var/log/channel.log";
print F "channel changing $SIGNAL\n";
close F;
print "channel changing $SIGNAL\n";

# Checks if $SIGNAL begins with a digit
# If it detects that the string is made up of digits, then it puts
# spaces between the digits. Ex. 1234 becomes 1 2 3 4
if ( $SIGNAL =~ /^\d+$/ )
{
my $length = length($SIGNAL);
my $counter = 0;
my $temp;

while( $counter < $length )
{
$temp .= substr($SIGNAL,$counter,1) ." ";
$counter++;
}

change_SIGNAL($temp);
}
else
{
# argument we passed was not made up of digits, so it must be a
# command that does something other than channel changing on the
# cable box
change_SIGNAL($SIGNAL);
}

# Do we need to send enter
if ( $needs_enter )
{
system ("$rc_command SEND_ONCE $remote_name ENTER");
}

I'm having a sound problem with the PVR-350. It works for awhile and then it stops working... Could this script help, or is it 150 only?

_________________
LinHES 8.3, 1 BE, 3 FE

On Change1.pl, at the beginning,make sure that it says, And on Change2.pl, it says,

In my scripts, to make sure that I get the audio on both cards fixed, I actually totally replace the with direct settings for both cards in both change scripts. Like this:


-Loco

This should work with a 150, 250, and 350. However, I do not know if 350 inputs are set the same.....

Depending on available inputs, it culd be altered and used for any capture card.

-Loco

Oh yeah- it does create log files at and .

Still stumped. I'm only using one PVR150 card and my change1.pl file has DEVICE="0" at the top. I suppose I could go through and hard-code the "video0" everywhere, but I'm not seeing why that would make a difference since the DEVICE="0" is there.

Any idea if I need different ivtv drivers than what's included with R5F27, or did the scripts alone work?

Thanks

This is getting weirder and weirder. I came home to watch some recordings today and noticed every recording from about 2:00 AM on now starts in color and then switches to black and white within about 1 second..

On several of the recordings the sound is tinny at first but then clears up as soon as it goes to black and white.

I noticed I botched the delayed_settings.sh script by defining "SATRUATION" instead of "SATURATION"(see above). That probably explains the black and white symptom.

However, the same scripts were saved and should have been running earlier last night, but must not have been running since those earlier recordings have both the sound problem and are still entirely in color.

Basically, there's no explanation for why the scripts starting running all of a sudden on those post-2:00 AM recordings.