*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
//#define DEBUG
// it's odd Be never patented that :D
struct benaphore {
- vint32 atom;
- sem_id sem;
+ vint32 atom;
+ sem_id sem;
};
static inline int lock_ben(struct benaphore *ben)
{
- if (atomic_add(&ben->atom, 1) > 0)
- return acquire_sem(ben->sem);
- return B_OK;
+ if (atomic_add(&ben->atom, 1) > 0)
+ return acquire_sem(ben->sem);
+ return B_OK;
}
static inline int unlock_ben(struct benaphore *ben)
{
- if (atomic_add(&ben->atom, -1) > 1)
- return release_sem(ben->sem);
- return B_OK;
+ if (atomic_add(&ben->atom, -1) > 1)
+ return release_sem(ben->sem);
+ return B_OK;
}
static struct benaphore av_thread_lib_ben;
//printf("thread_func %X signal complete\n", (int)v); fflush(stdout);
release_sem(c->done_sem);
}
-
+
return B_OK;
}
int32 ret;
for(i=0; i<s->thread_count; i++){
-
+
c[i].func= NULL;
release_sem(c[i].work_sem);
wait_for_thread(c[i].thread, &ret);
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
ThreadContext *c= s->thread_opaque;
int i;
-
+
assert(s == c->avctx);
assert(count <= s->thread_count);
-
+
/* note, we can be certain that this is not called with the same AVCodecContext by different threads at the same time */
for(i=0; i<count; i++){
}
for(i=0; i<count; i++){
acquire_sem(c[i].done_sem);
-
+
c[i].func= NULL;
if(ret) ret[i]= c[i].ret;
}
assert(!s->thread_opaque);
c= av_mallocz(sizeof(ThreadContext)*thread_count);
s->thread_opaque= c;
-
+
for(i=0; i<thread_count; i++){
//printf("init semaphors %d\n", i); fflush(stdout);
c[i].avctx= s;
resume_thread(c[i].thread );
}
//printf("init done\n"); fflush(stdout);
-
+
s->execute= avcodec_thread_execute;
return 0;
int avcodec_thread_lock_lib(void)
{
- return lock_ben(&av_thread_lib_ben);
+ return lock_ben(&av_thread_lib_ben);
}
int avcodec_thread_unlock_lib(void)
{
- return unlock_ben(&av_thread_lib_ben);
+ return unlock_ben(&av_thread_lib_ben);
}
/* our versions of _init and _fini (which are called by those actually from crt.o) */
void initialize_after(void)
{
- av_thread_lib_ben.atom = 0;
- av_thread_lib_ben.sem = create_sem(0, "libavcodec benaphore");
+ av_thread_lib_ben.atom = 0;
+ av_thread_lib_ben.sem = create_sem(0, "libavcodec benaphore");
}
void uninitialize_before(void)
{
- delete_sem(av_thread_lib_ben.sem);
+ delete_sem(av_thread_lib_ben.sem);
}