MediaTimeAVFoundation.cpp [plain text]
#include "config.h"
#include "MediaTimeAVFoundation.h"
#if USE(AVFOUNDATION)
#include "CoreMediaSoftLink.h"
namespace PAL {
static bool CMTimeHasFlags(const CMTime& cmTime, uint32_t flags)
{
return (cmTime.flags & flags) == flags;
}
MediaTime toMediaTime(const CMTime& cmTime)
{
uint32_t flags = 0;
if (CMTimeHasFlags(cmTime, kCMTimeFlags_Valid))
flags |= MediaTime::Valid;
if (CMTimeHasFlags(cmTime, kCMTimeFlags_Valid | kCMTimeFlags_HasBeenRounded))
flags |= MediaTime::HasBeenRounded;
if (CMTimeHasFlags(cmTime, kCMTimeFlags_Valid | kCMTimeFlags_PositiveInfinity))
flags |= MediaTime::PositiveInfinite;
if (CMTimeHasFlags(cmTime, kCMTimeFlags_Valid | kCMTimeFlags_NegativeInfinity))
flags |= MediaTime::NegativeInfinite;
if (CMTimeHasFlags(cmTime, kCMTimeFlags_Valid | kCMTimeFlags_Indefinite))
flags |= MediaTime::Indefinite;
return MediaTime(cmTime.value, cmTime.timescale, flags);
}
CMTime toCMTime(const MediaTime& mediaTime)
{
CMTime time;
if (mediaTime.hasDoubleValue())
time = CMTimeMakeWithSeconds(mediaTime.toDouble(), mediaTime.timeScale());
else
time = CMTimeMake(mediaTime.timeValue(), mediaTime.timeScale());
if (mediaTime.isValid())
time.flags |= kCMTimeFlags_Valid;
if (mediaTime.hasBeenRounded())
time.flags |= kCMTimeFlags_HasBeenRounded;
if (mediaTime.isPositiveInfinite())
time.flags |= kCMTimeFlags_PositiveInfinity;
if (mediaTime.isNegativeInfinite())
time.flags |= kCMTimeFlags_NegativeInfinity;
return time;
}
}
#endif