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mplayer: remove Linux RTC support 

This used /dev/rtc for timing. /dev/rtc root only by default, and I
have a hard time believing that the standard OS functions are not good
enough. (Even if not, support for POSIX high resolution timers should
be added instead, see clock_gettime() and others.)
This commit is contained in:
wm4 2012-07-29 18:48:50 +02:00
parent 7349d39938
commit 614f847516
4 changed files with 14 additions and 112 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
cfg-mplayer.h
View File

@ -880,10 +880,6 @@ const m_option_t mplayer_opts[]={
OPT_INTRANGE("autosync", autosync, 0, 0, 10000),
OPT_FLAG_ON("softsleep", softsleep, 0),
#ifdef HAVE_RTC
OPT_MAKE_FLAGS("rtc", rtc, 0),
OPT_STRING("rtc-device", rtc_device, 0),
#endif
OPT_CHOICE("term-osd", term_osd, M_OPT_IMPLICIT_DEFAULT,
({"force", 1},

29
configure vendored
View File

@ -309,7 +309,6 @@ Optional features:
--disable-tv-v4l2 disable Video4Linux2 TV interface [autodetect]
--disable-tv-bsdbt848 disable BSD BT848 interface [autodetect]
--disable-pvr disable Video4Linux2 MPEG PVR [autodetect]
--disable-rtc disable RTC (/dev/rtc) on Linux [autodetect]
--disable-networking disable networking [enable]
--enable-winsock2_h enable winsock2_h [autodetect]
--enable-smb enable Samba (SMB) input [autodetect]
@ -486,7 +485,6 @@ _dvb=auto
_v4l2=auto
_iconv=auto
_langinfo=auto
_rtc=auto
_ossaudio=auto
_rsound=auto
_pulse=auto
@ -737,8 +735,6 @@ for ac_option do
--disable-iconv) _iconv=no ;;
--enable-langinfo) _langinfo=yes ;;
--disable-langinfo) _langinfo=no ;;
--enable-rtc) _rtc=yes ;;
--disable-rtc) _rtc=no ;;
--enable-libdv) _libdv=yes ;;
--disable-libdv) _libdv=no ;;
--enable-ossaudio) _ossaudio=yes ;;
@ -3389,30 +3385,6 @@ fi
echores "$_zlib"
echocheck "RTC"
if test "$_rtc" = auto ; then
cat > $TMPC << EOF
#include <sys/ioctl.h>
#ifdef __linux__
#include <linux/rtc.h>
#else
#include <rtc.h>
#define RTC_PIE_ON RTCIO_PIE_ON
#endif
int main(void) { return RTC_PIE_ON; }
EOF
_rtc=no
cc_check && _rtc=yes
ppc && _rtc=no
fi
if test "$_rtc" = yes ; then
def_rtc='#define HAVE_RTC 1'
else
def_rtc='#undef HAVE_RTC'
fi
echores "$_rtc"
echocheck "mad support"
if test "$_mad" = auto ; then
_mad=no
@ -4629,7 +4601,6 @@ $def_macosx_finder
$def_priority
$def_quicktime
$def_restrict_keyword
$def_rtc
/* configurable options */

91
mplayer.c
View File

@ -109,16 +109,6 @@ float start_volume = -1;
char *heartbeat_cmd;
#ifdef HAVE_RTC
#ifdef __linux__
#include <linux/rtc.h>
#else
#include <rtc.h>
#define RTC_IRQP_SET RTCIO_IRQP_SET
#define RTC_PIE_ON RTCIO_PIE_ON
#endif /* __linux__ */
#endif /* HAVE_RTC */
#include "stream/tv.h"
#include "stream/stream_radio.h"
#ifdef CONFIG_DVBIN
@ -1975,41 +1965,22 @@ static int check_framedrop(struct MPContext *mpctx, double frame_time)
return 0;
}
#ifdef HAVE_RTC
int rtc_fd = -1;
#endif
static float timing_sleep(struct MPContext *mpctx, float time_frame)
{
#ifdef HAVE_RTC
if (rtc_fd >= 0) {
// -------- RTC -----------
while (time_frame > 0.000) {
unsigned long rtc_ts;
if (read(rtc_fd, &rtc_ts, sizeof(rtc_ts)) <= 0)
mp_tmsg(MSGT_CPLAYER, MSGL_ERR,
"Linux RTC read error: %s\n", strerror(errno));
time_frame -= get_relative_time(mpctx);
}
} else
#endif
{
// assume kernel HZ=100 for softsleep, works with larger HZ but with
// unnecessarily high CPU usage
struct MPOpts *opts = &mpctx->opts;
float margin = opts->softsleep ? 0.011 : 0;
while (time_frame > margin) {
usec_sleep(1000000 * (time_frame - margin));
time_frame -= get_relative_time(mpctx);
}
if (opts->softsleep) {
if (time_frame < 0)
mp_tmsg(MSGT_AVSYNC, MSGL_WARN,
"Warning! Softsleep underflow!\n");
while (time_frame > 0)
time_frame -= get_relative_time(mpctx); // burn the CPU
}
// assume kernel HZ=100 for softsleep, works with larger HZ but with
// unnecessarily high CPU usage
struct MPOpts *opts = &mpctx->opts;
float margin = opts->softsleep ? 0.011 : 0;
while (time_frame > margin) {
usec_sleep(1000000 * (time_frame - margin));
time_frame -= get_relative_time(mpctx);
}
if (opts->softsleep) {
if (time_frame < 0)
mp_tmsg(MSGT_AVSYNC, MSGL_WARN,
"Warning! Softsleep underflow!\n");
while (time_frame > 0)
time_frame -= get_relative_time(mpctx); // burn the CPU
}
return time_frame;
}
@ -3872,40 +3843,6 @@ int main(int argc, char *argv[])
mpctx->osd = osd_create(opts, mpctx->ass_library);
#ifdef HAVE_RTC
if (opts->rtc) {
char *rtc_device = opts->rtc_device;
// seteuid(0); /* Can't hurt to try to get root here */
if ((rtc_fd = open(rtc_device ? rtc_device : "/dev/rtc", O_RDONLY)) < 0)
mp_tmsg(MSGT_CPLAYER, MSGL_WARN, "Failed to open %s: %s "
"(it should be readable by the user.)\n",
rtc_device ? rtc_device : "/dev/rtc", strerror(errno));
else {
unsigned long irqp = 1024; /* 512 seemed OK. 128 is jerky. */
if (ioctl(rtc_fd, RTC_IRQP_SET, irqp) < 0) {
mp_tmsg(MSGT_CPLAYER, MSGL_WARN, "Linux RTC init error in "
"ioctl (rtc_irqp_set %lu): %s\n",
irqp, strerror(errno));
mp_tmsg(MSGT_CPLAYER, MSGL_HINT, "Try adding \"echo %lu > /proc/sys/dev/rtc/max-user-freq\" to your system startup scripts.\n", irqp);
close(rtc_fd);
rtc_fd = -1;
} else if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
/* variable only by the root */
mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "Linux RTC init error in "
"ioctl (rtc_pie_on): %s\n", strerror(errno));
close(rtc_fd);
rtc_fd = -1;
} else
mp_tmsg(MSGT_CPLAYER, MSGL_V,
"Using Linux hardware RTC timing (%ldHz).\n", irqp);
}
}
if (rtc_fd < 0)
#endif /* HAVE_RTC */
mp_msg(MSGT_CPLAYER, MSGL_V, "Using %s timing\n",
opts->softsleep ? "software" : timer_name);
#ifdef HAVE_TERMCAP
load_termcap(NULL); // load key-codes
#endif

2
options.h
View File

@ -62,8 +62,6 @@ typedef struct MPOpts {
float hr_seek_demuxer_offset;
int autosync;
int softsleep;
int rtc;
char *rtc_device;
int term_osd;
char *term_osd_esc;
char *playing_msg;