#import NS_ASSUME_NONNULL_BEGIN @interface FFMpegAVFrame : NSObject @property (nonatomic, readonly) int32_t width; @property (nonatomic, readonly) int32_t height; @property (nonatomic, readonly) uint8_t **data; @property (nonatomic, readonly) int *lineSize; @property (nonatomic, readonly) int64_t pts; - (instancetype)init; - (void *)impl; @end NS_ASSUME_NONNULL_END