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@@ -61,7 +61,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "QSV_Encoder_Internal.h"
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#include <obs-module.h>
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#include <string>
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-#include <mutex>
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+#include <atomic>
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#include <intrin.h>
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#define do_log(level, format, ...) \
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@@ -70,7 +70,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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mfxIMPL impl = MFX_IMPL_HARDWARE_ANY;
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mfxVersion ver = {{0, 1}}; // for backward compatibility
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-std::mutex active_mutex;
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+std::atomic<bool> is_active{false};
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void qsv_encoder_version(unsigned short *major, unsigned short *minor)
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{
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@@ -80,7 +80,8 @@ void qsv_encoder_version(unsigned short *major, unsigned short *minor)
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qsv_t *qsv_encoder_open(qsv_param_t *pParams)
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{
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- if (!active_mutex.try_lock()) {
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+ bool false_value = false;
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+ if (!is_active.compare_exchange_strong(false_value, true)) {
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do_log(LOG_ERROR, "Cannot have more than one encoder "
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"active at a time");
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return NULL;
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@@ -91,7 +92,7 @@ qsv_t *qsv_encoder_open(qsv_param_t *pParams)
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if (sts != MFX_ERR_NONE) {
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delete pEncoder;
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if (pEncoder)
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- active_mutex.unlock();
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+ is_active.store(false);
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return NULL;
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}
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@@ -132,7 +133,7 @@ int qsv_encoder_close(qsv_t *pContext)
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delete pEncoder;
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if (pEncoder)
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- active_mutex.unlock();
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+ is_active.store(false);
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return 0;
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}
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Jim