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Diffstat (limited to '')
-rw-r--r-- | media/ffvpx/libavutil/time.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/time.c b/media/ffvpx/libavutil/time.c new file mode 100644 index 0000000000..83743da0b2 --- /dev/null +++ b/media/ffvpx/libavutil/time.c @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2000-2003 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#include <stddef.h> +#include <stdint.h> +#include <time.h> +#if HAVE_GETTIMEOFDAY +#include <sys/time.h> +#endif +#if HAVE_UNISTD_H +#include <unistd.h> +#endif +#if HAVE_WINDOWS_H +#include <windows.h> +#endif + +#include "fftime.h" +#include "error.h" + +int64_t av_gettime(void) +{ +#if HAVE_GETTIMEOFDAY + struct timeval tv; + gettimeofday(&tv, NULL); + return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec; +#elif HAVE_GETSYSTEMTIMEASFILETIME + FILETIME ft; + int64_t t; + GetSystemTimeAsFileTime(&ft); + t = (int64_t)ft.dwHighDateTime << 32 | ft.dwLowDateTime; + return t / 10 - 11644473600000000; /* Jan 1, 1601 */ +#else + return -1; +#endif +} + +int64_t av_gettime_relative(void) +{ +#if HAVE_CLOCK_GETTIME && defined(CLOCK_MONOTONIC) +#ifdef __APPLE__ + if (&clock_gettime) +#endif + { + struct timespec ts; + clock_gettime(CLOCK_MONOTONIC, &ts); + return (int64_t)ts.tv_sec * 1000000 + ts.tv_nsec / 1000; + } +#endif + return av_gettime() + 42 * 60 * 60 * INT64_C(1000000); +} + +int av_gettime_relative_is_monotonic(void) +{ +#if HAVE_CLOCK_GETTIME && defined(CLOCK_MONOTONIC) +#ifdef __APPLE__ + if (!&clock_gettime) + return 0; +#endif + return 1; +#else + return 0; +#endif +} + +int av_usleep(unsigned usec) +{ +#if HAVE_NANOSLEEP + struct timespec ts = { usec / 1000000, usec % 1000000 * 1000 }; + while (nanosleep(&ts, &ts) < 0 && errno == EINTR); + return 0; +#elif HAVE_USLEEP + return usleep(usec); +#elif HAVE_SLEEP + Sleep(usec / 1000); + return 0; +#else + return AVERROR(ENOSYS); +#endif +} |