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Reattach videooutput on too many failures #79

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Reattach videooutput on too many failures #79

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18 changes: 16 additions & 2 deletions MDVRLibrary/MDVRLibrary/MDVideoDataAdatperAVPlayerImpl.m
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,8 @@
@interface MDVideoDataAdatperAVPlayerImpl ()<AVPlayerItemOutputPullDelegate>
@property (nonatomic, strong) AVPlayerItemVideoOutput* output;
@property (nonatomic, strong) AVPlayerItem* playerItem;
@property (nonatomic) int failures;
@property (nonatomic) CMTime lastFailure;

@end

Expand Down Expand Up @@ -66,25 +68,37 @@ - (void) setup{
[self.playerItem addOutput:self.output];
}

- (void)teardown{
- (void)teardown {
if (self.playerItem != nil && self.output != nil) {
[self.playerItem removeOutput:self.output];
self.output = nil;
}
}

- (CVPixelBufferRef)copyPixelBuffer{
if (_failures == 10) {
if (self.output != nil) {
[self teardown];
[self setup];
_failures = 0;
}
}

if (self.output == nil) {
return nil;
}

CMTime currentTime = [self.playerItem currentTime];
if([self.output hasNewPixelBufferForItemTime:currentTime]){
_failures = 0;
return [self.output copyPixelBufferForItemTime:currentTime itemTimeForDisplay:nil];
} else {
if (_lastFailure.value != currentTime.value) {
_failures += 1;
_lastFailure = currentTime;
}
return nil;
}

}

- (void)dealloc{
Expand Down