Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 156 insertions, 0 deletions

diff --git a/media/ffvpx/libavutil/timer.h b/media/ffvpx/libavutil/timer.h
new file mode 100644
index 0000000000..d3db5a27ef
--- /dev/null
+++ b/media/ffvpx/libavutil/timer.h
@@ -0,0 +1,156 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * high precision timer, useful to profile code
+ */
+
+#ifndef AVUTIL_TIMER_H
+#define AVUTIL_TIMER_H
+
+#include "config.h"
+
+#if CONFIG_LINUX_PERF
+# ifndef _GNU_SOURCE
+#  define _GNU_SOURCE
+# endif
+# include <unistd.h> // read(3)
+# include <sys/ioctl.h>
+# include <asm/unistd.h>
+# include <linux/perf_event.h>
+#endif
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#if CONFIG_MACOS_KPERF
+#include "macos_kperf.h"
+#elif HAVE_MACH_ABSOLUTE_TIME
+#include <mach/mach_time.h>
+#endif
+
+#include "common.h"
+#include "log.h"
+
+#if   ARCH_AARCH64
+#   include "aarch64/timer.h"
+#elif ARCH_ARM
+#   include "arm/timer.h"
+#elif ARCH_PPC
+#   include "ppc/timer.h"
+#elif ARCH_RISCV
+#   include "riscv/timer.h"
+#elif ARCH_X86
+#   include "x86/timer.h"
+#endif
+
+#if !defined(AV_READ_TIME)
+#   if HAVE_GETHRTIME
+#       define AV_READ_TIME gethrtime
+#   elif HAVE_MACH_ABSOLUTE_TIME
+#       define AV_READ_TIME mach_absolute_time
+#   endif
+#endif
+
+#ifndef FF_TIMER_UNITS
+#   define FF_TIMER_UNITS "UNITS"
+#endif
+
+#define TIMER_REPORT(id, tdiff)                                           \
+    {                                                                     \
+        static uint64_t tsum   = 0;                                       \
+        static int tcount      = 0;                                       \
+        static int tskip_count = 0;                                       \
+        static int thistogram[32] = {0};                                  \
+        thistogram[av_log2(tdiff)]++;                                     \
+        if (tcount < 2                ||                                  \
+            (tdiff) < 8 * tsum / tcount ||                                \
+            (tdiff) < 2000) {                                             \
+            tsum += (tdiff);                                              \
+            tcount++;                                                     \
+        } else                                                            \
+            tskip_count++;                                                \
+        if (((tcount + tskip_count) & (tcount + tskip_count - 1)) == 0) { \
+            int i;                                                        \
+            av_log(NULL, AV_LOG_ERROR,                                    \
+                   "%7" PRIu64 " " FF_TIMER_UNITS " in %s,%8d runs,%7d skips",\
+                   tsum * 10 / tcount, id, tcount, tskip_count);          \
+            for (i = 0; i < 32; i++)                                      \
+                av_log(NULL, AV_LOG_VERBOSE, " %2d", av_log2(2*thistogram[i]));\
+            av_log(NULL, AV_LOG_ERROR, "\n");                             \
+        }                                                                 \
+    }
+
+#if CONFIG_LINUX_PERF
+
+#define START_TIMER                                                         \
+    static int linux_perf_fd;                                               \
+    uint64_t tperf;                                                         \
+    if (!linux_perf_fd) {                                                   \
+        struct perf_event_attr attr = {                                     \
+            .type           = PERF_TYPE_HARDWARE,                           \
+            .size           = sizeof(struct perf_event_attr),               \
+            .config         = PERF_COUNT_HW_CPU_CYCLES,                     \
+            .disabled       = 1,                                            \
+            .exclude_kernel = 1,                                            \
+            .exclude_hv     = 1,                                            \
+        };                                                                  \
+        linux_perf_fd = syscall(__NR_perf_event_open, &attr,                \
+                                0, -1, -1, 0);                              \
+    }                                                                       \
+    if (linux_perf_fd == -1) {                                              \
+        av_log(NULL, AV_LOG_ERROR, "perf_event_open failed: %s\n",          \
+               av_err2str(AVERROR(errno)));                                 \
+    } else {                                                                \
+        ioctl(linux_perf_fd, PERF_EVENT_IOC_RESET, 0);                      \
+        ioctl(linux_perf_fd, PERF_EVENT_IOC_ENABLE, 0);                     \
+    }
+
+#define STOP_TIMER(id)                                                      \
+    ioctl(linux_perf_fd, PERF_EVENT_IOC_DISABLE, 0);                        \
+    read(linux_perf_fd, &tperf, sizeof(tperf));                             \
+    TIMER_REPORT(id, tperf)
+
+#elif CONFIG_MACOS_KPERF
+
+#define START_TIMER                                                         \
+    uint64_t tperf;                                                         \
+    ff_kperf_init();                                                        \
+    tperf = ff_kperf_cycles();
+
+#define STOP_TIMER(id)                                                      \
+    TIMER_REPORT(id, ff_kperf_cycles() - tperf);
+
+#elif defined(AV_READ_TIME)
+#define START_TIMER                             \
+    uint64_t tend;                              \
+    uint64_t tstart = AV_READ_TIME();           \
+
+#define STOP_TIMER(id)                                                    \
+    tend = AV_READ_TIME();                                                \
+    TIMER_REPORT(id, tend - tstart)
+#else
+#define START_TIMER
+#define STOP_TIMER(id) { }
+#endif
+
+#endif /* AVUTIL_TIMER_H */