Add m-esr52 at 52.6.0

1 files changed, 172 insertions, 0 deletions

diff --git a/media/ffvpx/libavutil/thread.h b/media/ffvpx/libavutil/thread.h
new file mode 100644
index 000000000..32ddf4036
--- /dev/null
+++ b/media/ffvpx/libavutil/thread.h
@@ -0,0 +1,172 @@
+/*
+ * 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
+ */
+
+// This header should only be used to simplify code where
+// threading is optional, not as a generic threading abstraction.
+
+#ifndef AVUTIL_THREAD_H
+#define AVUTIL_THREAD_H
+
+#include "config.h"
+
+#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
+
+#define USE_ATOMICS 0
+
+#if HAVE_PTHREADS
+#include <pthread.h>
+
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
+
+#include "log.h"
+
+#define ASSERT_PTHREAD_NORET(func, ...) do {                            \
+    int ret = func(__VA_ARGS__);                                        \
+    if (ret) {                                                          \
+        av_log(NULL, AV_LOG_FATAL, AV_STRINGIFY(func)                   \
+               " failed with error: %s\n", av_err2str(AVERROR(ret)));   \
+        abort();                                                        \
+    }                                                                   \
+} while (0)
+
+#define ASSERT_PTHREAD(func, ...) do {                                  \
+    ASSERT_PTHREAD_NORET(func, __VA_ARGS__);                            \
+    return 0;                                                           \
+} while (0)
+
+static inline int strict_pthread_join(pthread_t thread, void **value_ptr)
+{
+    ASSERT_PTHREAD(pthread_join, thread, value_ptr);
+}
+
+static inline int strict_pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
+{
+    if (attr) {
+        ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, attr);
+    } else {
+        pthread_mutexattr_t local_attr;
+        ASSERT_PTHREAD_NORET(pthread_mutexattr_init, &local_attr);
+        ASSERT_PTHREAD_NORET(pthread_mutexattr_settype, &local_attr, PTHREAD_MUTEX_ERRORCHECK);
+        ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, &local_attr);
+        ASSERT_PTHREAD_NORET(pthread_mutexattr_destroy, &local_attr);
+    }
+    return 0;
+}
+
+static inline int strict_pthread_mutex_destroy(pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_mutex_destroy, mutex);
+}
+
+static inline int strict_pthread_mutex_lock(pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_mutex_lock, mutex);
+}
+
+static inline int strict_pthread_mutex_unlock(pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_mutex_unlock, mutex);
+}
+
+static inline int strict_pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
+{
+    ASSERT_PTHREAD(pthread_cond_init, cond, attr);
+}
+
+static inline int strict_pthread_cond_destroy(pthread_cond_t *cond)
+{
+    ASSERT_PTHREAD(pthread_cond_destroy, cond);
+}
+
+static inline int strict_pthread_cond_signal(pthread_cond_t *cond)
+{
+    ASSERT_PTHREAD(pthread_cond_signal, cond);
+}
+
+static inline int strict_pthread_cond_broadcast(pthread_cond_t *cond)
+{
+    ASSERT_PTHREAD(pthread_cond_broadcast, cond);
+}
+
+static inline int strict_pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_cond_wait, cond, mutex);
+}
+
+static inline int strict_pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
+{
+    ASSERT_PTHREAD(pthread_once, once_control, init_routine);
+}
+
+#define pthread_join           strict_pthread_join
+#define pthread_mutex_init     strict_pthread_mutex_init
+#define pthread_mutex_destroy  strict_pthread_mutex_destroy
+#define pthread_mutex_lock     strict_pthread_mutex_lock
+#define pthread_mutex_unlock   strict_pthread_mutex_unlock
+#define pthread_cond_init      strict_pthread_cond_init
+#define pthread_cond_destroy   strict_pthread_cond_destroy
+#define pthread_cond_signal    strict_pthread_cond_signal
+#define pthread_cond_broadcast strict_pthread_cond_broadcast
+#define pthread_cond_wait      strict_pthread_cond_wait
+#define pthread_once           strict_pthread_once
+#endif
+
+#elif HAVE_OS2THREADS
+#include "compat/os2threads.h"
+#else
+#include "compat/w32pthreads.h"
+#endif
+
+#define AVMutex pthread_mutex_t
+
+#define ff_mutex_init    pthread_mutex_init
+#define ff_mutex_lock    pthread_mutex_lock
+#define ff_mutex_unlock  pthread_mutex_unlock
+#define ff_mutex_destroy pthread_mutex_destroy
+
+#define AVOnce pthread_once_t
+#define AV_ONCE_INIT PTHREAD_ONCE_INIT
+
+#define ff_thread_once(control, routine) pthread_once(control, routine)
+
+#else
+
+#define USE_ATOMICS 1
+
+#define AVMutex char
+
+#define ff_mutex_init(mutex, attr) (0)
+#define ff_mutex_lock(mutex) (0)
+#define ff_mutex_unlock(mutex) (0)
+#define ff_mutex_destroy(mutex) (0)
+
+#define AVOnce char
+#define AV_ONCE_INIT 0
+
+static inline int ff_thread_once(char *control, void (*routine)(void))
+{
+    if (!*control) {
+        routine();
+        *control = 1;
+    }
+    return 0;
+}
+
+#endif
+
+#endif /* AVUTIL_THREAD_H */