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Here is all the code I've written for operating a
2x20 VFD with freevo. Vfdchanges.txt contains all the ammendments I made
to the original freevo/mplayer codes, and recshare.so and parport.so are my
python modules. I have also included the source code for these modules,
which I compiled using SWIG.
I think that a lot of this code could be made more
efficient, but at least it works. I had to use shared memory in a lot of
places, because I didn't know how else to get mplayer and freevo to
communicate with each other. If there's a better way, let me
know! I hope this is useful to someone, and please feel free
to fix it and send me recommendations!
Thanks,
Rob M
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parport.c
Description: Binary data
parport.so
Description: Binary data
recshare.c
Description: Binary data
recshare.so
Description: Binary data
# Revisions February - March 2003 # Rob MacNeill's additions for a 2x20 VFD or LCD. # (Also included is a small bit of code for deleting unwanted video files)
# All of this code was written for a final school project to turn a PC into
# a standalone DVR that can be part of a home entertainment unit. The school
# is Camosun College in Victoria, BC, Canada.
#
# Check out the other students' projects at www.elex.camosun.bc.ca
# (There's some pretty cool stuff!)
# I used a 2x20 VFD connected directly to the parallel port. The parallel port
# pin connections were as follows:
# Parallel port Pin VFD Signal
# ----------------- ----------
# 1 Enable
# 2 - 9 D0 - D7
# 10 - 13 Floating
# 14 RD/!WR
# 15 Busy (I never used this, but tried to set it up anyway)
# 16 Register Select
# 17 !Reset
# 18 - 25 Gnd
# / Serial In - Floating
# / !Chip Select - Tied to ground
#
# I used a VFD set to LCD mode, so most of this code should be transferable to
# an LCD. The available character addresses were 0x80-0x93 for the top row, and
# 0x94-0xA7.
#KNOWN BUGS:
#-Intermittent error when forward skip goes past the end of a file. Sometimes
# screen clears as it should, then PLAY message reappears.
#
#-Slight (but noticeable) screen glitch when time display rolls over
# from :59 to :00 - not as noticeable with faster hardware.
#
#-(rec) message stays on screen if recording finishes while MPlayer is active.
# Goes away if MPlayer stopped then restarted.
#
#-mplayer/mencoder can't execute from the command line using this code,
# since it is looking for shared memory created by freevo. This is fine for
# me since I am only using freevo to execute MPlayer, but this should probably
# be fixed eventually.
main.py:
--------
Line 152:
# Also put these at the top of the two mplayer.py's and record_daemon.py
import parport # For accessing VFD through Parallel port
import recshare # For RecordStatus and PlayStatus
Line 209:
# setup
recshare.creatememory()
recshare.putrecstatus(0)
recshare.putplaystatus(0)
Line 217:
# Shutdown Message
parport.display(2)
time.sleep(1)
parport.display(0)
Line 357:
# This bit is just for fun and isn't necessary. If freevo is
# Idle for ~20seconds a message flashes between the top line and the
# bottom line until a button is pushed. Right now, the message is just
# "SCREENSAVER" - just change it in parport.c. If you want to leave this
# out, then you can also leave out all parport.getstatus() and
# parport.putstatus() messages in mplayer.py/record_damemon.py.
while 1:
counter = 0
routine = 0
# Get next command
while 1:
if recshare.getrecstatus() == 0:
counter = counter + 1
if counter > 100:
counter = 90
if parport.getstatus() == 0:
if routine == 0:
parport.display(5)
routine = 1
elif routine == 1:
parport.display(6)
routine = 0
event = osd._cb()
Line 422:
# This is pretty specific to our project, and probably not useful to anyone
# else. We built a 4 to 1 RCA multiplexer board, controlled by a PICf628.
# This section toggles the line in status for the VFD between the 4 RCA lines
# and the cable input.
elif event == rc.TV_VCR:
parport.display(0)
if line == 0:
line = 1
parport.putlinestatus(1)
parport.display(31)
elif line == 1:
line = 2
parport.putlinestatus(2)
parport.display(32)
elif line == 2:
line = 3
parport.putlinestatus(3)
parport.display(33)
elif line == 3:
line = 4
parport.putlinestatus(4)
parport.display(34)
elif line == 4:
line = 0
parport.putlinestatus(0)
parport.display(30)
--------------------------------------------------------------------------------
/video/mplayer.py
-----------------
Line 218:
# Top of def play()
parport.putstatus(1)
recshare.putplaystatus(1)
Line 351:
# Top of def stop()
recshare.putplaystatus(0)
parport.putstatus(0)
parport.freememory()
self.thread.mode = 'stop'
self.thread.mode_flag.set()
rc.app = None
rc.func = None
while self.thread.mode == 'stop':
time.sleep(0.3)
if recshare.getrecstatus() == 1:
parport.display(4)
Line 365:
# There's a whole bunch of stuff here, so I'll just show the complete
# Eventhandler. This is all the play mode icons. There are play, pause, stop,
# >, >>, >>>, <, <<, <<< (depending on seek speed).
def eventhandler(self, event):
"""
eventhandler for mplayer control. If an event is not bound in this
function it will be passed over to the items eventhandler
"""
if event == rc.STOP or event == rc.SELECT:
if self.mode == 'dvdnav':
self.thread.app.write('dvdnav 6\n')
else:
parport.SharedMem(1)
parport.display(18)
parport.SharedMem(0)
self.stop()
self.thread.item = None
rc.app = None
menuwidget.refresh(reload=1)
return TRUE
if event == rc.EXIT:
parport.SharedMem(1)
parport.display(18)
parport.SharedMem(0)
self.stop()
self.thread.item = None
rc.app = None
menuwidget.refresh(reload=1)
return TRUE
if event == rc.PLAY_END or event == rc.USER_END:
self.stop()
parport.display(0)
rc.app = None
return self.item.eventhandler(event)
if event == rc.DVD_PROTECTED:
self.stop()
rc.app = None
skin.PopupBox('The DVD is protected, see the docs for more info!')
osd.update()
time.sleep(5.0)
# Forward the event as if it was a regular end of item
event = rc.PLAY_END
return self.item.eventhandler(event)
if event == rc.MENU:
if self.mode == 'dvdnav':
self.thread.app.write('dvdnav 5\n')
return TRUE
if event == rc.DISPLAY:
self.thread.app.write('osd\n')
return TRUE
if event == rc.PAUSE or event == rc.PLAY:
playswitch = parport.getplayswitch()
if event == rc.PAUSE and playswitch == 0:
self.thread.app.write('pause\n')
parport.SharedMem(1)
parport.display(16)
parport.SharedMem(0)
parport.putplayswitch(1)
elif event == rc.PLAY and playswitch == 1:
self.thread.app.write('pause\n')
parport.SharedMem(1)
parport.display(17)
parport.SharedMem(0)
parport.putplayswitch(0)
return TRUE
if event == rc.FFWD:
self.thread.app.write('seek 10\n')
parport.putplayswitch(0)
parport.SharedMem(1)
parport.display(11)
parport.SharedMem(0)
time.sleep(2)
parport.SharedMem(1)
parport.display(17)
parport.SharedMem(0)
return TRUE
if event == rc.UP:
self.thread.app.write('seek 600\n')
parport.putplayswitch(0)
parport.SharedMem(1)
parport.display(14)
parport.SharedMem(0)
time.sleep(2)
parport.SharedMem(1)
parport.display(17)
parport.SharedMem(0)
return TRUE
if event == rc.REW:
self.thread.app.write('seek -10\n')
parport.putplayswitch(0)
parport.SharedMem(1)
parport.display(10)
parport.SharedMem(0)
time.sleep(2)
parport.SharedMem(1)
parport.display(17)
parport.SharedMem(0)
return TRUE
if event == rc.DOWN:
self.thread.app.write('seek -600\n')
parport.putplayswitch(0)
parport.SharedMem(1)
parport.display(15)
parport.SharedMem(0)
time.sleep(2)
parport.SharedMem(1)
parport.display(17)
parport.SharedMem(0)
return TRUE
if event == rc.LEFT:
if self.mode == 'dvdnav':
self.thread.app.write('dvdnav 3\n')
else:
self.thread.app.write('seek -60\n')
parport.putplayswitch(0)
parport.SharedMem(1)
parport.display(13)
parport.SharedMem(0)
time.sleep(2)
parport.SharedMem(1)
parport.display(17)
parport.SharedMem(0)
return TRUE
if event == rc.RIGHT:
if self.mode == 'dvdnav':
self.thread.app.write('dvdnav 4\n')
else:
self.thread.app.write('seek 60\n')
parport.putplayswitch(0)
parport.SharedMem(1)
parport.display(12)
parport.SharedMem(0)
time.sleep(2)
parport.SharedMem(1)
parport.display(17)
parport.SharedMem(0)
return TRUE
--------------------------------------------------------------------------------
/tv/mplayer.py
--------------
Line 174:
# This is all more cable/RCA stuff, and probably not necessary.
# (Except for the first line if you're using the Screensaver feature.)
parport.putstatus(1)
linein = parport.getlinestatus()
if linein == 0:
mode = "tv"
elif linein == 1:
mode = "vcr"
parport.display(0)
parport.display(31)
elif linein == 2:
mode = "vcr"
parport.display(0)
parport.display(32)
elif linein == 3:
mode = "vcr"
parport.display(0)
parport.display(33)
elif linein == 4:
mode = "vcr"
parport.display(0)
parport.display(34)
Line 205:
# Displays the current channel on the VFD/LCD upon startup of tv application
if mode == 'tv':
parport.display(0)
parport.display(3)
parport.display(30)
tuner_channel = self.TunerGetChannel()
parport.channelchange(tuner_channel)
Line 351:
# Under def Stop()
parport.putstatus(0)
Line 369:
# Added parport lines to CHUP/CHDN event handler to actively update current
# channel display using channel up / channel down buttons
#
elif event == rc.CHUP or event == rc.CHDOWN:
if self.mode == 'vcr':
return
# Go to the prev/next channel in the list
if event == rc.CHUP:
self.TunerPrevChannel()
tuner_id = config.TV_CHANNELS[self.tuner_chidx][2]
parport.channelchange(tuner_id)
else:
self.TunerNextChannel()
tuner_id = config.TV_CHANNELS[self.tuner_chidx][2]
parport.channelchange(tuner_id)
new_channel = self.TunerGetChannel()
self.thread.app.write('tv_set_channel %s\n' % new_channel)
--------------------------------------------------------------------------------
record_daemon.py
----------------
Line 123:
# Displays a message if something is recording. Message varies depending on
# Current status of MPlayer
# Should this item be started?
if item.check_time():
recshare.putrecstatus(1)
if recshare.getplaystatus() == 1:
parport.SharedMem(1) # If MPlayer is running, then show small
parport.display(35) # (rec) message in bottom right corner
parport.SharedMem(0)
elif recshare.getplaystatus() == 0:
parport.display(4) # Else show large RECORDING message on
cmd = item.make_cmd() # Top line
log(' Starting item (%s)' % cmd)
--------------------------------------------------------------------------------
mplayer.c
---------
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include "/usr/include/sys/io.h"
Line 80:
# Setup stuff
int isTV; //Added Feb 23, 2003 - status flag for file type (TV or movie)
#define BUFSZ 1 //Added Feb26, 2003 to allocate space for shared memory
#define BUFSZ2 10
int isrec = 0;
int shmid; //Shared Memory ID
char *shmbuf; //Contents of Shared Memory -- Flag Variable
FILE *fPtr; //File Pointer for sving shmid to a file
int shmid2;
char *shmbuf2;
Line 246:
# I don't remember why I put this stuff here rather than with the stuff above.
# It probably doesn't matter.
char secl=0x30, sech=0x30, minl=0x30, minh=0x30, hour=0x30;
int oneshot=0;
char *recmsg = "(rec)";
Line 474:
# Clears the display when MPlayer is halted
if(how) mp_msg(MSGT_CPLAYER,MSGL_INFO,MSGTR_Exiting,mp_gettext(how));
mp_msg(MSGT_CPLAYER,MSGL_DBG2,"max framesize was %d bytes\n",max_framesize);
//Start of Rob's Code!!!!!!!!!!!!!!!!!!!
int i=0;
ioperm(0x378, 3, 1); //Grant Permission to use Parallel Port
//HOME CURSOR
outb (0x02, 0x378); //Move Cursor to home
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
/*CLEAR FILENAME*/
//Set DDRAM Address
outb (0x80, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
for (i=0;i<20;i++)
{
outb(0x06, 0x37A); //Enable Register Select
outb(0x20, 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
/*CLEAR TIMER*/
//Set DDRAM Address
outb (0x02, 0x37A);
usleep(1);
outb (0x94, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
for (i=0;i<20;i++)
{
outb(0x06, 0x37A); //Enable Register Select
outb(0x20, 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
ioperm(0x378, 3, 0);
//End of Rob's code!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
exit(rc);
Line 826:
# This is the main section to show the filename on the VFD. If the name is
# greater than 20 characters long (entire top line), then last three letters on
# the top line are replaced with '...'. I wrote this before I was familiar with
# python...Looking back, I think that this should really be rewritten within
# /video/mplayer.py.
filename = play_tree_iter_get_file(playtree_iter,1);
//This is Rob MacNeill's Code!!!!!!!!!!!!!!!!!!!
char *TVstring = "TV channel";
isTV = strncmp(filename, TVstring, 10);
int i=0;
int start=0;
int length;
int toolong = 0;
char *etc = "...";
char *timeinit = "0:00:00 PLAY";
length = strlen(filename);
for (i=0;i<length;i++)
{
if (filename[i] == '/')
start=i+1;
}
if ((length - start) > 20)
{
toolong = 1;
while ((length - start) > 17)
{
length = length - 1;
}
}
/*!!!!!!CREATE SHARED MEMORY SPACE FOR DISPLAY HANDSHAKE!!!!!*/
if ((shmid = shmget(IPC_PRIVATE, BUFSZ, 0666)) < 0)
{
perror("shmget");
exit(EXIT_FAILURE);
}
if ((fPtr = fopen("/tmp/sharedisplay.txt", "w")) == NULL)
printf("\nShareDisplay file not opened for writing\n");
else
{
fprintf(fPtr, "%d", shmid);
fclose(fPtr);
}
/*Attach to shared memory segment*/
if ((shmbuf = shmat(shmid, 0, 0)) < (char *)0)
{
perror("shmat");
exit(EXIT_FAILURE);
}
shmbuf[0] = 1; //Set Status to 1: so nothing else can write
// to display until info is done
/*Detach from shared memory*/
if ((shmdt(shmbuf)) < 0)
{
perror("shmdt");
exit(EXIT_FAILURE);
}
//!!!!!!!!!!!!END OF MEMORY HANDSHAKE!!!!!!!!!!!!!!!!!!!!
if (isTV != 0)
{
ioperm(0x378, 3, 1); //Grant Permission to use Parallel Port
//CLEAR DISPLAY
outb (0x02, 0x37A);
outb (0x01, 0x378); //Clear Display
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//HOME CURSOR
outb (0x02, 0x378); //Move Cursor to home
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//SETUP DISPLAY
outb (0x0c, 0x378); //Unblank Display, and Remove Cursors
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//Cursor Position Controls
outb (0x14, 0x378); //Shift Cursor Right
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//Set DDRAM Address
outb (0x80, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
for (i=start;i<length;i++)
{
/*OUTPUT FILE NAME*/
outb(0x06, 0x37A); //Enable Register Select
outb(filename[i], 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
if (toolong == 1)
{
for (i=0;i<3;i++)
{
outb(0x06, 0x37A); //Enable Register Select
outb(etc[i], 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
}
/*INITIALIZE TIMER DISPLAY TO 0:00:00*/
//Set DDRAM Address
outb (0x02, 0x37A);
usleep(1);
outb (0x94, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
for (i=0;i<14;i++)
{
outb(0x06, 0x37A); //Enable Register Select
outb(timeinit[i], 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
// START RECORD/PLAY SIMULTANEOUSLY
if ((fPtr = fopen("/tmp/recstatus.txt", "r")) == NULL)
printf("\nShareDisplay not opened for writing\n");
else
{
fscanf(fPtr, "%d", &shmid2);
fclose(fPtr);
}
if ((shmbuf2 = shmat(shmid2, 0, 0)) < (char *)0)
{
perror("shmat");
exit(EXIT_FAILURE);
}
if (shmbuf2[0] == 1) //If Something is recording
{
//Set DDRAM Address
outb(0x02, 0x37A);
usleep(1);
outb(0xA3, 0x378);
outb(0x03, 0x37A);
usleep(1);
outb(0x02, 0x37A);
for (i=0;i<5;i++)
{
outb(0x06, 0x37A);
outb(recmsg[i], 0x378);
outb(0x07, 0x37A);
usleep(1);
outb(0x06, 0x37A);
}
}
if ((shmdt(shmbuf2)) < 0)
{
perror("shmdt");
exit(EXIT_FAILURE);
}
ioperm(0x378, 3, 0);
}
/*Attach to shared memory segment*/
if ((shmbuf = shmat(shmid, 0, 0)) < (char *)0)
{
perror("shmat");
exit(EXIT_FAILURE);
}
shmbuf[0] = 0; //INITIALIZE STATUS TO 0 - NOTHING OPERATING
/*Detach from shared memory*/
if ((shmdt(shmbuf)) < 0)
{
perror("shmdt");
exit(EXIT_FAILURE);
}
//End of Rob's code!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
}
}
#ifndef HAVE_NEW_GUI
Line 2421:
# Code to show current time of file playing. As far as I can see, this code
# needs to stay in mplayer.c, but if anyone knows how to move it to freevo
# please do so! It really should have been written as a callable function,
# since it is used in both the audio and noaudio modes. I'll only show it here
# once, but keep in mind it needs to be copied into both play modes!
# Note: if you are using a slower computer, you may notice a skip in the video
# in 1 minute increments, since the VFD has to update over 2 characters.
/*Added by Rob MacNeill Feb 21, 2003 to show time on a Front Panel Display*/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
if (isTV != 0)
{
/*Attach to shared memory segment*/
if ((shmbuf = shmat(shmid, 0, 0)) < (char *)0)
{
perror("shmat");
exit(EXIT_FAILURE);
}
while(shmbuf[0] != 0)
{
usleep(100);
}
shmbuf[0] = 1; //TIMER IS OPERATING
/*Detach from shared memory*/
if ((shmdt(shmbuf)) < 0)
{
perror("shmdt");
exit(EXIT_FAILURE);
}
timeout=v_pts;
ioperm(0x378, 3, 1); //Grant Permission to use Parallel Port
if (hour != ((timeout/3600)%10) + 0x30)
{
//Set DDRAM Address
hour = ((timeout/3600)%10) + 0x30;
outb (0x02, 0x37A);
//usleep(1);
outb (0x94, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//Output Time Character
outb(0x06, 0x37A); //Enable Register Select
outb(hour, 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
timeout = timeout % 3600;
if (minh != (timeout/600) + 0x30)
{
//Set DDRAM Address
minh = (timeout/600) + 0x30;
outb (0x02, 0x37A);
//usleep(1);
outb (0x96, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//Output Time Character
outb(0x06, 0x37A); //Enable Register Select
outb(minh, 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
timeout = timeout % 600;
if (minl != (timeout/60) + 0x30)
{
//Set DDRAM Address
minl = (timeout/60) + 0x30;
outb (0x02, 0x37A);
//usleep(1);
outb (0x97, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//Output Time Character
outb(0x06, 0x37A); //Enable Register Select
outb(minl, 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
timeout = timeout % 60;
if (sech != (timeout/10) + 0x30)
{
//Set DDRAM Address
sech = (timeout/10) + 0x30;
outb (0x02, 0x37A);
//usleep(1);
outb (0x99, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//Output Time Character
outb(0x06, 0x37A); //Enable Register Select
outb(sech, 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
if (secl != (timeout%10) + 0x30)
{
//Set DDRAM Address
secl = (timeout%10) + 0x30;
outb (0x02, 0x37A);
//usleep(1);
outb (0x9a, 0x378); // Set DDRAM Address
outb (0x03, 0x37A); //Enable Transfer
usleep(1);
outb (0x02, 0x37A); //Complete Transfer
//Output Time Character
outb(0x06, 0x37A); //Enable Register Select
outb(secl, 0x378); //Output Data 1 char at a time
outb(0x07, 0x37A); //Enable Transfer
usleep(1);
outb (0x06, 0x37A); //Complete Transfer
}
ioperm(0x378, 3, 0); //Grant Permission to use Parallel Port
/*Attach to shared memory segment*/
if ((shmbuf = shmat(shmid, 0, 0)) < (char *)0)
{
perror("shmat");
exit(EXIT_FAILURE);
}
shmbuf[0] = 0; //TIMER IS FINISHED OPERATING
/*Detach from shared memory*/
if ((shmdt(shmbuf)) < 0)
{
perror("shmdt");
exit(EXIT_FAILURE);
}
}
/*End of Front Panel Display Addition*/
/*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
fflush(stdout);
}
--------------------------------------------------------------------------------
mencoder.c
----------
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include "/usr/include/sys/io.h"
#Somewhere at the top:
int shmid; //Shared Memory ID
char *shmbuf; //Contents of Shared Memory -- Flag Variable
FILE *fPtr; //File Pointer for sving shmid to a file
Line 1325:
# Display procedure for mencoder end. Would like to add code to remove (rec)
# message while MPlayer is running. As it is the message will stay until
# MPlayer ends.
if ((fPtr = fopen("/tmp/playstatus.txt", "r")) == NULL)
printf("\nPlaystatus file not opened for writing\n");
else
{
fscanf(fPtr, "%d", &shmid);
fclose(fPtr);
}
/*Attach to shared memory segment*/
if ((shmbuf = shmat(shmid, 0, 0)) < (char *)0)
{
perror("shmat");
exit(EXIT_FAILURE);
}
if (shmbuf[0] == 0)
{ //If nothing Playing on MPlayer, then Clear Display
ioperm(0x378, 3, 1);
outb (0x02, 0x37A);
outb (0x01, 0x378);
outb (0x03, 0x37A);
usleep(1);
outb (0x02, 0x37A);
ioperm(0x378, 3, 0);
}
// else ... Insert Clear routine for "(rec)" label
/*Detach from shared memory*/
if ((shmdt(shmbuf)) < 0)
{
perror("shmdt");
exit(EXIT_FAILURE);
}
// NOW CLEAR RECSTATUS FOR FREEVO
if ((fPtr = fopen("/tmp/recstatus.txt", "r")) == NULL)
printf("Recstatus File not opened for reading");
else
{
fscanf(fPtr, "%d", &shmid);
fclose(fPtr);
}
if ((shmbuf = shmat(shmid, 0, 0)) < (char *)0)
{
perror("shmat");
exit(EXIT_FAILURE);
}
shmbuf[0] = 0;
if ((shmdt(shmbuf)) < 0)
{
perror("shmdt");
exit(EXIT_FAILURE);
}
//!!!!!!END OF ROB'S CODE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
return interrupted;
}
--------------------------------------------------------------------------------
# This is unrelated. Just a little bit of code I added to videoitem.py to delete
# unwanted video files. I don't know if someone has already done this or not, but
# here it is. I used '8' for delete and confirm and '7' to cancel.
videoitem.py
------------
Line 451:
def delete(self, arg=None, menuw=None):
skin.PopupBox("Do you really want to delete this file?\nPush C to confirm or B
to cancel.")
self.deleteinit = 1
def deleteconfirm(self, arg=None, menuw=None):
file = self.filename
os.system ('rm -f %s' % (file))
menuwidget.refresh()
skin.PopupBox("File Deleted")
self.deleteinit = 0
time.sleep(2)
menuwidget.refresh()
def canceldelete(self, arg=None, menuw=None):
menuwidget.refresh()
skin.PopupBox("File Not Deleted")
self.deleteinit = 0
time.sleep(2)
menuwidget.refresh()
# And in the eventhandler...
if event == rc.K8 and self.deleteinit == 0:
self.delete()
return TRUE
elif event == rc.K8 and self.deleteinit == 1:
self.deleteconfirm()
return TRUE
if event == rc.K7 and self.deleteinit == 1:
self.canceldelete()
return TRUE
