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threads: make get_logical_cpus() available outside pthread.c

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-06-14 21:11:05 +02:00
parent 094c5e6c55
commit 0c851e4642
2 changed files with 5 additions and 3 deletions
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2
libavcodec/internal.h
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@ -167,4 +167,6 @@ static av_always_inline int64_t ff_samples_to_time_base(AVCodecContext *avctx,
int ff_thread_can_start_frame(AVCodecContext *avctx);
int ff_get_logical_cpus(AVCodecContext *avctx);
#endif /* AVCODEC_INTERNAL_H */

6
libavcodec/pthread.c
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@ -160,7 +160,7 @@ typedef struct FrameThreadContext {
* limit the number of threads to 16 for automatic detection */
#define MAX_AUTO_THREADS 16
static int get_logical_cpus(AVCodecContext *avctx)
int ff_get_logical_cpus(AVCodecContext *avctx)
{
int ret, nb_cpus = 1;
#if HAVE_SCHED_GETAFFINITY && defined(CPU_COUNT)
@ -303,7 +303,7 @@ static int thread_init(AVCodecContext *avctx)
int thread_count = avctx->thread_count;
if (!thread_count) {
int nb_cpus = get_logical_cpus(avctx);
int nb_cpus = ff_get_logical_cpus(avctx);
// use number of cores + 1 as thread count if there is more than one
if (nb_cpus > 1)
thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS);
@ -799,7 +799,7 @@ static int frame_thread_init(AVCodecContext *avctx)
int i, err = 0;
if (!thread_count) {
int nb_cpus = get_logical_cpus(avctx);
int nb_cpus = ff_get_logical_cpus(avctx);
if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) || avctx->debug_mv)
nb_cpus = 1;
// use number of cores + 1 as thread count if there is more than one