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SVGAVideoEntity.m
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//
// SVGAVideoEntity.m
// SVGAPlayer
//
// Created by 崔明辉 on 16/6/17.
// Copyright © 2016年 UED Center. All rights reserved.
//
#import <AVFoundation/AVFoundation.h>
#import "SVGAVideoEntity.h"
#import "SVGABezierPath.h"
#import "SVGAVideoSpriteEntity.h"
#import "SVGAAudioEntity.h"
#import "Svga.pbobjc.h"
#define MP3_MAGIC_NUMBER "ID3"
@interface SVGAVideoEntity ()
@property (nonatomic, assign) CGSize videoSize;
@property (nonatomic, assign) int FPS;
@property (nonatomic, assign) int frames;
@property (nonatomic, copy) NSDictionary<NSString *, UIImage *> *images;
@property (nonatomic, copy) NSDictionary<NSString *, NSData *> *audiosData;
@property (nonatomic, copy) NSArray<SVGAVideoSpriteEntity *> *sprites;
@property (nonatomic, copy) NSArray<SVGAAudioEntity *> *audios;
@property (nonatomic, copy) NSString *cacheDir;
@end
@implementation SVGAVideoEntity
static NSCache *videoCache;
static NSMapTable * weakCache;
static dispatch_semaphore_t videoSemaphore;
+ (void)load {
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
videoCache = [[NSCache alloc] init];
weakCache = [[NSMapTable alloc] initWithKeyOptions:NSPointerFunctionsStrongMemory
valueOptions:NSPointerFunctionsWeakMemory
capacity:64];
videoSemaphore = dispatch_semaphore_create(1);
});
}
- (instancetype)initWithJSONObject:(NSDictionary *)JSONObject cacheDir:(NSString *)cacheDir {
self = [super init];
if (self) {
_videoSize = CGSizeMake(100, 100);
_FPS = 20;
_images = @{};
_cacheDir = cacheDir;
[self resetMovieWithJSONObject:JSONObject];
}
return self;
}
- (void)resetMovieWithJSONObject:(NSDictionary *)JSONObject {
if ([JSONObject isKindOfClass:[NSDictionary class]]) {
NSDictionary *movieObject = JSONObject[@"movie"];
if ([movieObject isKindOfClass:[NSDictionary class]]) {
NSDictionary *viewBox = movieObject[@"viewBox"];
if ([viewBox isKindOfClass:[NSDictionary class]]) {
NSNumber *width = viewBox[@"width"];
NSNumber *height = viewBox[@"height"];
if ([width isKindOfClass:[NSNumber class]] && [height isKindOfClass:[NSNumber class]]) {
_videoSize = CGSizeMake(width.floatValue, height.floatValue);
}
}
NSNumber *FPS = movieObject[@"fps"];
if ([FPS isKindOfClass:[NSNumber class]]) {
_FPS = [FPS intValue];
}
NSNumber *frames = movieObject[@"frames"];
if ([frames isKindOfClass:[NSNumber class]]) {
_frames = [frames intValue];
}
}
}
}
- (void)resetImagesWithJSONObject:(NSDictionary *)JSONObject {
if ([JSONObject isKindOfClass:[NSDictionary class]]) {
NSMutableDictionary<NSString *, UIImage *> *images = [[NSMutableDictionary alloc] init];
NSDictionary<NSString *, NSString *> *JSONImages = JSONObject[@"images"];
if ([JSONImages isKindOfClass:[NSDictionary class]]) {
[JSONImages enumerateKeysAndObjectsUsingBlock:^(NSString * _Nonnull key, NSString * _Nonnull obj, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[NSString class]]) {
NSString *filePath = [self.cacheDir stringByAppendingFormat:@"/%@.png", obj];
// NSData *imageData = [NSData dataWithContentsOfFile:filePath];
NSData *imageData = [NSData dataWithContentsOfFile:filePath options:NSDataReadingMappedIfSafe error:NULL];
if (imageData != nil) {
UIImage *image = [[UIImage alloc] initWithData:imageData scale:2.0];
if (image != nil) {
[images setObject:image forKey:[key stringByDeletingPathExtension]];
}
}
}
}];
}
self.images = images;
}
}
- (void)resetSpritesWithJSONObject:(NSDictionary *)JSONObject {
if ([JSONObject isKindOfClass:[NSDictionary class]]) {
NSMutableArray<SVGAVideoSpriteEntity *> *sprites = [[NSMutableArray alloc] init];
NSArray<NSDictionary *> *JSONSprites = JSONObject[@"sprites"];
if ([JSONSprites isKindOfClass:[NSArray class]]) {
[JSONSprites enumerateObjectsUsingBlock:^(NSDictionary * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[NSDictionary class]]) {
SVGAVideoSpriteEntity *spriteItem = [[SVGAVideoSpriteEntity alloc] initWithJSONObject:obj];
[sprites addObject:spriteItem];
}
}];
}
self.sprites = sprites;
}
}
- (instancetype)initWithProtoObject:(SVGAProtoMovieEntity *)protoObject cacheDir:(NSString *)cacheDir {
self = [super init];
if (self) {
_videoSize = CGSizeMake(100, 100);
_FPS = 20;
_images = @{};
_cacheDir = cacheDir;
[self resetMovieWithProtoObject:protoObject];
}
return self;
}
- (void)resetMovieWithProtoObject:(SVGAProtoMovieEntity *)protoObject {
if (protoObject.hasParams) {
self.videoSize = CGSizeMake((CGFloat)protoObject.params.viewBoxWidth, (CGFloat)protoObject.params.viewBoxHeight);
self.FPS = (int)protoObject.params.fps;
self.frames = (int)protoObject.params.frames;
}
}
+ (BOOL)isMP3Data:(NSData *)data {
BOOL result = NO;
if (!strncmp([data bytes], MP3_MAGIC_NUMBER, strlen(MP3_MAGIC_NUMBER))) {
result = YES;
}
return result;
}
- (void)resetImagesWithProtoObject:(SVGAProtoMovieEntity *)protoObject {
NSMutableDictionary<NSString *, UIImage *> *images = [[NSMutableDictionary alloc] init];
NSMutableDictionary<NSString *, NSData *> *audiosData = [[NSMutableDictionary alloc] init];
NSDictionary *protoImages = [protoObject.images copy];
for (NSString *key in protoImages) {
NSString *fileName = [[NSString alloc] initWithData:protoImages[key] encoding:NSUTF8StringEncoding];
if (fileName != nil) {
NSString *filePath = [self.cacheDir stringByAppendingFormat:@"/%@.png", fileName];
if (![[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
filePath = [self.cacheDir stringByAppendingFormat:@"/%@", fileName];
}
if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
// NSData *imageData = [NSData dataWithContentsOfFile:filePath];
NSData *imageData = [NSData dataWithContentsOfFile:filePath options:NSDataReadingMappedIfSafe error:NULL];
if (imageData != nil) {
UIImage *image = [[UIImage alloc] initWithData:imageData scale:2.0];
if (image != nil) {
[images setObject:image forKey:key];
}
}
}
}
else if ([protoImages[key] isKindOfClass:[NSData class]]) {
if ([SVGAVideoEntity isMP3Data:protoImages[key]]) {
// mp3
[audiosData setObject:protoImages[key] forKey:key];
} else {
UIImage *image = [[UIImage alloc] initWithData:protoImages[key] scale:2.0];
if (image != nil) {
[images setObject:image forKey:key];
}
}
}
}
self.images = images;
self.audiosData = audiosData;
}
- (void)resetSpritesWithProtoObject:(SVGAProtoMovieEntity *)protoObject {
NSMutableArray<SVGAVideoSpriteEntity *> *sprites = [[NSMutableArray alloc] init];
NSArray *protoSprites = [protoObject.spritesArray copy];
[protoSprites enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[SVGAProtoSpriteEntity class]]) {
SVGAVideoSpriteEntity *spriteItem = [[SVGAVideoSpriteEntity alloc] initWithProtoObject:obj];
[sprites addObject:spriteItem];
}
}];
self.sprites = sprites;
}
- (void)resetAudiosWithProtoObject:(SVGAProtoMovieEntity *)protoObject {
NSMutableArray<SVGAAudioEntity *> *audios = [[NSMutableArray alloc] init];
NSArray *protoAudios = [protoObject.audiosArray copy];
[protoAudios enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[SVGAProtoAudioEntity class]]) {
SVGAAudioEntity *audioItem = [[SVGAAudioEntity alloc] initWithProtoObject:obj];
[audios addObject:audioItem];
}
}];
self.audios = audios;
}
+ (SVGAVideoEntity *)readCache:(NSString *)cacheKey {
dispatch_semaphore_wait(videoSemaphore, DISPATCH_TIME_FOREVER);
SVGAVideoEntity * object = [videoCache objectForKey:cacheKey];
if (!object) {
object = [weakCache objectForKey:cacheKey];
}
dispatch_semaphore_signal(videoSemaphore);
return object;
}
- (void)saveCache:(NSString *)cacheKey {
dispatch_semaphore_wait(videoSemaphore, DISPATCH_TIME_FOREVER);
[videoCache setObject:self forKey:cacheKey];
dispatch_semaphore_signal(videoSemaphore);
}
- (void)saveWeakCache:(NSString *)cacheKey {
dispatch_semaphore_wait(videoSemaphore, DISPATCH_TIME_FOREVER);
[weakCache setObject:self forKey:cacheKey];
dispatch_semaphore_signal(videoSemaphore);
}
@end
@interface SVGAVideoSpriteEntity()
@property (nonatomic, copy) NSString *imageKey;
@property (nonatomic, copy) NSArray<SVGAVideoSpriteFrameEntity *> *frames;
@property (nonatomic, copy) NSString *matteKey;
@end