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lavc: Use av_gettime_relative()

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Whenever av_gettime() is used to measure relative period of time,
av_gettime_relative() is prefered as it guarantee monotonic time
on supported platforms.

Signed-off-by: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Olivier Langlois 2014-05-06 17:16:49 -04:00 committed by Michael Niedermayer
parent 0eec06ed87
commit b052bccbe4
3 changed files with 8 additions and 8 deletions
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8
libavcodec/dct-test.c
View File

@ -348,7 +348,7 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed, c
init_block(block, test, is_idct, &prng, vals); init_block(block, test, is_idct, &prng, vals);
permute(block1, block, dct->format); permute(block1, block, dct->format);
ti = av_gettime(); ti = av_gettime_relative();
it1 = 0; it1 = 0;
do { do {
for (it = 0; it < NB_ITS_SPEED; it++) { for (it = 0; it < NB_ITS_SPEED; it++) {
@ -357,7 +357,7 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed, c
} }
emms_c(); emms_c();
it1 += NB_ITS_SPEED; it1 += NB_ITS_SPEED;
ti1 = av_gettime() - ti; ti1 = av_gettime_relative() - ti;
} while (ti1 < 1000000); } while (ti1 < 1000000);
printf("%s %s: %0.1f kdct/s\n", is_idct ? "IDCT" : "DCT", dct->name, printf("%s %s: %0.1f kdct/s\n", is_idct ? "IDCT" : "DCT", dct->name,
@ -508,7 +508,7 @@ static void idct248_error(const char *name,
if (!speed) if (!speed)
return; return;
ti = av_gettime(); ti = av_gettime_relative();
it1 = 0; it1 = 0;
do { do {
for (it = 0; it < NB_ITS_SPEED; it++) { for (it = 0; it < NB_ITS_SPEED; it++) {
@ -518,7 +518,7 @@ static void idct248_error(const char *name,
} }
emms_c(); emms_c();
it1 += NB_ITS_SPEED; it1 += NB_ITS_SPEED;
ti1 = av_gettime() - ti; ti1 = av_gettime_relative() - ti;
} while (ti1 < 1000000); } while (ti1 < 1000000);
printf("%s %s: %0.1f kdct/s\n", 1 ? "IDCT248" : "DCT248", name, printf("%s %s: %0.1f kdct/s\n", 1 ? "IDCT248" : "DCT248", name,

4
libavcodec/fft-test.c
View File

@ -438,7 +438,7 @@ int main(int argc, char **argv)
/* we measure during about 1 seconds */ /* we measure during about 1 seconds */
nb_its = 1; nb_its = 1;
for(;;) { for(;;) {
time_start = av_gettime(); time_start = av_gettime_relative();
for (it = 0; it < nb_its; it++) { for (it = 0; it < nb_its; it++) {
switch (transform) { switch (transform) {
case TRANSFORM_MDCT: case TRANSFORM_MDCT:
@ -464,7 +464,7 @@ int main(int argc, char **argv)
#endif #endif
} }
} }
duration = av_gettime() - time_start; duration = av_gettime_relative() - time_start;
if (duration >= 1000000) if (duration >= 1000000)
break; break;
nb_its *= 2; nb_its *= 2;

4
libavcodec/motion-test.c
View File

@ -91,7 +91,7 @@ static void test_motion(const char *name,
emms_c(); emms_c();
/* speed test */ /* speed test */
ti = av_gettime(); ti = av_gettime_relative();
d1 = 0; d1 = 0;
for(it=0;it<NB_ITS;it++) { for(it=0;it<NB_ITS;it++) {
for(y=0;y<HEIGHT-17;y++) { for(y=0;y<HEIGHT-17;y++) {
@ -103,7 +103,7 @@ static void test_motion(const char *name,
} }
emms_c(); emms_c();
dummy = d1; /* avoid optimization */ dummy = d1; /* avoid optimization */
ti = av_gettime() - ti; ti = av_gettime_relative() - ti;
printf(" %0.0f kop/s\n", printf(" %0.0f kop/s\n",
(double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) / (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) /