Feature - loadWebVTTSubtitlesAtURL

ASBPlayerSubtitling/ASBPlayerSubtitling.h

@@ -24,6 +24,8 @@
 @property (nonatomic, assign) BOOL visible;
 
 - (void)loadSubtitlesAtURL:(NSURL *)url error:(NSError **)error;
+- (void)loadWebVTTSubtitlesAtURL:(NSURL *)url error:(NSError **)error;
+
 - (void)loadSRTContent:(NSString *)string error:(NSError **)error;
 - (void)removeSubtitles;
 

ASBPlayerSubtitling/ASBPlayerSubtitling.m

@@ -8,8 +8,9 @@
 
 #import "ASBPlayerSubtitling.h"
 #import <UIKit/UIKit.h>
+#import "NSString+ASBRegularExpression.h"
 
-static CGFloat *const DefaultNbFramesPerSecond = 30;
+static CGFloat const DefaultNbFramesPerSecond = 30;
 
 @implementation ASBSubtitle
 @end
@@ -39,6 +40,7 @@ - (instancetype)init
 
 - (void)awakeFromNib
 {
+    [super awakeFromNib];
     [self setup];
 }
 
@@ -82,6 +84,23 @@ - (void)loadSubtitlesAtURL:(NSURL *)url error:(NSError **)error
     }
 }
 
+- (void)loadWebVTTSubtitlesAtURL:(NSURL *)url error:(NSError **)error
+{
+    NSError *localError;
+    NSString *text;
+
+    text = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&localError];
+    if (localError == nil)
+    {
+        [self loadWebVTTContent:text error:&localError];
+    }
+
+    if(error != NULL)
+    {
+        *error = localError;
+    }
+}
+
 - (void)computeStyle
 {
     NSString *textAlign;
@@ -225,6 +244,11 @@ - (void)loadSRTContent:(NSString *)string error:(NSError **)error
     [self setupTimeObserver];
 }
 
+- (void)loadWebVTTContent:(NSString *)string error:(NSError **)error {
+    NSString *srtString = [[self class] srtSubtitleFromWebVTT:string];
+    [self loadSRTContent:srtString error:error];
+}
+
 - (NSTimeInterval)timeFromString:(NSString *)timeString
 {
     NSScanner *scanner;
@@ -329,6 +353,75 @@ - (void)playerTimeChanged
     });
 }
 
++ (NSString *)srtSubtitleFromWebVTT:(NSString *)content {
+
+    NSArray *lines = [self split:content];
+    NSString *output = @"";
+    NSInteger i = 0;
+    NSError *error;
+    NSString *newLine;
+
+    for (NSString *line in lines) {
+        newLine = line;
+        NSCharacterSet* notDigits = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
+
+        if([[line stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"\n\r "]]  rangeOfCharacterFromSet:notDigits].location == NSNotFound) {
+            continue;
+        }
+
+        NSString *pattern1 = @"(\\d{2}):(\\d{2}):(\\d{2})\\.(\\d{3})"; // '01:52:52.554'
+        NSString *pattern2 = @"(\\d{2}):(\\d{2})\\.(\\d{3})"; // '00:08.301'
+
+        NSRegularExpression* regex = [NSRegularExpression regularExpressionWithPattern: pattern1 options:0 error:&error];
+        NSArray* matches = [regex matchesInString:line options:0 range: NSMakeRange(0, line.length)];
+
+        NSString *pattern ;
+        NSString *template;
+
+        if (matches.count) {
+            pattern = pattern1;
+            template = @"$1:$2:$3,$4";
+        } else {
+            regex = [NSRegularExpression regularExpressionWithPattern: pattern2 options:0 error:&error];
+            matches = [regex matchesInString:line options:0 range: NSMakeRange(0, line.length)];
+            if (matches.count) {
+                pattern = pattern2;
+                template = @"00:$1:$2,$3";
+            }
+        }
+
+        if (matches.count && !error) {
+            i++;
+            output = [output stringByAppendingString:@"\r\n\r\n"];
+            output = [output stringByAppendingString:[@(i) stringValue]];
+            output = [output stringByAppendingString:@"\r\n"];
+
+            newLine = [line stringByReplacingWithPattern:pattern withTemplate:template error:&error];
+        }
+
+        if([newLine containsString:@"WEBVTT"]) {
+            continue;
+        }
+        output = [output stringByAppendingString:newLine];
+        output = [output stringByAppendingString:@"\r\n"];
+    }
+
+    return output;
+}
+
+
++ (NSArray *)split:(NSString *)content {
+
+    NSArray *lines = [content componentsSeparatedByString: @"\n"];
+    if (lines.count == 1) {
+        lines  = [content componentsSeparatedByString: @"\r\n"];
+        if (lines.count == 1) {
+            lines  = [content componentsSeparatedByString: @"\n"];
+        }
+    }
+    return lines;
+}
+
 #pragma Time Observer
 - (void)removeTimeObserver
 {

ASBPlayerSubtitling/NSString+ASBRegularExpression.h

@@ -0,0 +1,15 @@
+//
+//  NSString+ASBRegularExpression.h
+//  ASBPlayerSubtitlingExample
+//
+//  Created by Allen and Kim on 2018/5/28.
+//  Copyright © 2018 AutreSphere. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface NSString (ASBRegularExpression)
+
+- (NSString *)stringByReplacingWithPattern:(NSString *)pattern withTemplate:(NSString *)withTemplate error:(NSError **)error;
+
+@end

ASBPlayerSubtitling/NSString+ASBRegularExpression.m

@@ -0,0 +1,23 @@
+//
+//  NSString+ASBRegularExpression.m
+//  ASBPlayerSubtitlingExample
+//
+//  Created by Allen and Kim on 2018/5/28.
+//  Copyright © 2018 AutreSphere. All rights reserved.
+//
+
+#import "NSString+ASBRegularExpression.h"
+
+@implementation NSString (ASBRegularExpression)
+
+- (NSString *)stringByReplacingWithPattern:(NSString *)pattern withTemplate:(NSString *)withTemplate error:(NSError **)error {
+    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:pattern
+                                                                           options:NSRegularExpressionCaseInsensitive
+                                                                             error:error];
+    return [regex stringByReplacingMatchesInString:self
+                                           options:0
+                                             range:NSMakeRange(0, self.length)
+                                      withTemplate:withTemplate];
+}
+
+@end

Example/ASBPlayerSubtitlingExample.xcodeproj/project.pbxproj

@@ -19,14 +19,14 @@
 		4A0BC9321AC31714000904A2 /* play@2x.png in Resources */ = {isa = PBXBuildFile; fileRef = 4A0BC92C1AC31714000904A2 /* play@2x.png */; };
 		4A0BC9331AC31714000904A2 /* sliderThumb.png in Resources */ = {isa = PBXBuildFile; fileRef = 4A0BC92D1AC31714000904A2 /* sliderThumb.png */; };
 		4A0BC9341AC31714000904A2 /* sliderThumb@2x.png in Resources */ = {isa = PBXBuildFile; fileRef = 4A0BC92E1AC31714000904A2 /* sliderThumb@2x.png */; };
-		4A0BC93E1AC31AA4000904A2 /* ASBPlayerSubtitling.m in Sources */ = {isa = PBXBuildFile; fileRef = 4A0BC93D1AC31AA4000904A2 /* ASBPlayerSubtitling.m */; };
 		4A0BC9401AC31C7B000904A2 /* welcome.srt in Resources */ = {isa = PBXBuildFile; fileRef = 4A0BC93F1AC31C7B000904A2 /* welcome.srt */; };
-		F654DA73C37C2F1646AEC07F /* libPods.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DC330590DF6F8B0B77845089 /* libPods.a */; };
+		AC38C51B8CBB21836A917F0F /* libPods-ASBPlayerSubtitlingExample.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 76EBDB8E40A605075481464B /* libPods-ASBPlayerSubtitlingExample.a */; };
+		FF57A34420BBFF820083DAF4 /* ASBPlayerSubtitling.m in Sources */ = {isa = PBXBuildFile; fileRef = FF57A34220BBFF810083DAF4 /* ASBPlayerSubtitling.m */; };
+		FF706DFC20BBF360002125A0 /* NSString+ASBRegularExpression.m in Sources */ = {isa = PBXBuildFile; fileRef = FF706DFB20BBF360002125A0 /* NSString+ASBRegularExpression.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
-		1CBAABE9F880F0FD13E247C1 /* Pods.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.release.xcconfig; path = "Pods/Target Support Files/Pods/Pods.release.xcconfig"; sourceTree = "<group>"; };
-		28816A0F5DC302DE300E6131 /* Pods.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.debug.xcconfig; path = "Pods/Target Support Files/Pods/Pods.debug.xcconfig"; sourceTree = "<group>"; };
+		059287F5601B90D3529D1112 /* Pods-ASBPlayerSubtitlingExample.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-ASBPlayerSubtitlingExample.debug.xcconfig"; path = "Pods/Target Support Files/Pods-ASBPlayerSubtitlingExample/Pods-ASBPlayerSubtitlingExample.debug.xcconfig"; sourceTree = "<group>"; };
 		4A0BC8FF1AC313F8000904A2 /* ASBPlayerSubtitlingExample.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ASBPlayerSubtitlingExample.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		4A0BC9031AC313F8000904A2 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		4A0BC9041AC313F8000904A2 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
@@ -43,41 +43,35 @@
 		4A0BC92C1AC31714000904A2 /* play@2x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "play@2x.png"; sourceTree = "<group>"; };
 		4A0BC92D1AC31714000904A2 /* sliderThumb.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = sliderThumb.png; sourceTree = "<group>"; };
 		4A0BC92E1AC31714000904A2 /* sliderThumb@2x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "sliderThumb@2x.png"; sourceTree = "<group>"; };
-		4A0BC93C1AC31AA4000904A2 /* ASBPlayerSubtitling.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASBPlayerSubtitling.h; sourceTree = "<group>"; };
-		4A0BC93D1AC31AA4000904A2 /* ASBPlayerSubtitling.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASBPlayerSubtitling.m; sourceTree = "<group>"; };
 		4A0BC93F1AC31C7B000904A2 /* welcome.srt */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = welcome.srt; sourceTree = "<group>"; };
-		DC330590DF6F8B0B77845089 /* libPods.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libPods.a; sourceTree = BUILT_PRODUCTS_DIR; };
+		76EBDB8E40A605075481464B /* libPods-ASBPlayerSubtitlingExample.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-ASBPlayerSubtitlingExample.a"; sourceTree = BUILT_PRODUCTS_DIR; };
+		E772E8E09A39AFEBDA5DEA34 /* Pods-ASBPlayerSubtitlingExample.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-ASBPlayerSubtitlingExample.release.xcconfig"; path = "Pods/Target Support Files/Pods-ASBPlayerSubtitlingExample/Pods-ASBPlayerSubtitlingExample.release.xcconfig"; sourceTree = "<group>"; };
+		FF57A34220BBFF810083DAF4 /* ASBPlayerSubtitling.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASBPlayerSubtitling.m; sourceTree = "<group>"; };
+		FF57A34320BBFF810083DAF4 /* ASBPlayerSubtitling.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASBPlayerSubtitling.h; sourceTree = "<group>"; };
+		FF706DFA20BBF360002125A0 /* NSString+ASBRegularExpression.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "NSString+ASBRegularExpression.h"; sourceTree = "<group>"; };
+		FF706DFB20BBF360002125A0 /* NSString+ASBRegularExpression.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = "NSString+ASBRegularExpression.m"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
 		4A0BC8FC1AC313F8000904A2 /* Frameworks */ = {
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				F654DA73C37C2F1646AEC07F /* libPods.a in Frameworks */,
+				AC38C51B8CBB21836A917F0F /* libPods-ASBPlayerSubtitlingExample.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
-		057EEC1B454D549FA332F302 /* Pods */ = {
-			isa = PBXGroup;
-			children = (
-				28816A0F5DC302DE300E6131 /* Pods.debug.xcconfig */,
-				1CBAABE9F880F0FD13E247C1 /* Pods.release.xcconfig */,
-			);
-			name = Pods;
-			sourceTree = "<group>";
-		};
 		4A0BC8F61AC313F8000904A2 = {
 			isa = PBXGroup;
 			children = (
 				4A0BC9011AC313F8000904A2 /* Example */,
 				4A0BC9001AC313F8000904A2 /* Products */,
-				057EEC1B454D549FA332F302 /* Pods */,
 				4A0BC9281AC31714000904A2 /* Resources */,
-				C7FC1F457D9FBE6CDD3CA0A1 /* Frameworks */,
+				4C72E807FCAF458AF437B33F /* Pods */,
+				B9606A0EBBEB48EF405760FC /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -131,17 +125,28 @@
 		4A0BC93B1AC31AA4000904A2 /* ASBPlayerSubtitling */ = {
 			isa = PBXGroup;
 			children = (
-				4A0BC93C1AC31AA4000904A2 /* ASBPlayerSubtitling.h */,
-				4A0BC93D1AC31AA4000904A2 /* ASBPlayerSubtitling.m */,
+				FF57A34320BBFF810083DAF4 /* ASBPlayerSubtitling.h */,
+				FF57A34220BBFF810083DAF4 /* ASBPlayerSubtitling.m */,
+				FF706DFA20BBF360002125A0 /* NSString+ASBRegularExpression.h */,
+				FF706DFB20BBF360002125A0 /* NSString+ASBRegularExpression.m */,
 			);
 			name = ASBPlayerSubtitling;
 			path = ../../ASBPlayerSubtitling;
 			sourceTree = "<group>";
 		};
-		C7FC1F457D9FBE6CDD3CA0A1 /* Frameworks */ = {
+		4C72E807FCAF458AF437B33F /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				059287F5601B90D3529D1112 /* Pods-ASBPlayerSubtitlingExample.debug.xcconfig */,
+				E772E8E09A39AFEBDA5DEA34 /* Pods-ASBPlayerSubtitlingExample.release.xcconfig */,
+			);
+			name = Pods;
+			sourceTree = "<group>";
+		};
+		B9606A0EBBEB48EF405760FC /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				DC330590DF6F8B0B77845089 /* libPods.a */,
+				76EBDB8E40A605075481464B /* libPods-ASBPlayerSubtitlingExample.a */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -153,11 +158,10 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 4A0BC9221AC313F9000904A2 /* Build configuration list for PBXNativeTarget "ASBPlayerSubtitlingExample" */;
 			buildPhases = (
-				3943A9B80BCD8994501A37D7 /* Check Pods Manifest.lock */,
+				426F39AB4BE0A54BF59EF10F /* [CP] Check Pods Manifest.lock */,
 				4A0BC8FB1AC313F8000904A2 /* Sources */,
 				4A0BC8FC1AC313F8000904A2 /* Frameworks */,
 				4A0BC8FD1AC313F8000904A2 /* Resources */,
-				DAEDF1E2AF7F294F1DE6BBC6 /* Copy Pods Resources */,
 			);
 			buildRules = (
 			);
@@ -221,34 +225,22 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		3943A9B80BCD8994501A37D7 /* Check Pods Manifest.lock */ = {
-			isa = PBXShellScriptBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			inputPaths = (
-			);
-			name = "Check Pods Manifest.lock";
-			outputPaths = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
-			showEnvVarsInLog = 0;
-		};
-		DAEDF1E2AF7F294F1DE6BBC6 /* Copy Pods Resources */ = {
+		426F39AB4BE0A54BF59EF10F /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
 			);
-			name = "Copy Pods Resources";
+			name = "[CP] Check Pods Manifest.lock";
 			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-ASBPlayerSubtitlingExample-checkManifestLockResult.txt",
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods/Pods-resources.sh\"\n";
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
 			showEnvVarsInLog = 0;
 		};
 /* End PBXShellScriptBuildPhase section */
@@ -258,7 +250,8 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				4A0BC93E1AC31AA4000904A2 /* ASBPlayerSubtitling.m in Sources */,
+				FF57A34420BBFF820083DAF4 /* ASBPlayerSubtitling.m in Sources */,
+				FF706DFC20BBF360002125A0 /* NSString+ASBRegularExpression.m in Sources */,
 				4A0BC90B1AC313F8000904A2 /* ViewController.m in Sources */,
 				4A0BC9081AC313F8000904A2 /* AppDelegate.m in Sources */,
 				4A0BC9051AC313F8000904A2 /* main.m in Sources */,
@@ -367,7 +360,7 @@
 		};
 		4A0BC9231AC313F9000904A2 /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 28816A0F5DC302DE300E6131 /* Pods.debug.xcconfig */;
+			baseConfigurationReference = 059287F5601B90D3529D1112 /* Pods-ASBPlayerSubtitlingExample.debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = Example/Info.plist;
@@ -378,7 +371,7 @@
 		};
 		4A0BC9241AC313F9000904A2 /* Release */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 1CBAABE9F880F0FD13E247C1 /* Pods.release.xcconfig */;
+			baseConfigurationReference = E772E8E09A39AFEBDA5DEA34 /* Pods-ASBPlayerSubtitlingExample.release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = Example/Info.plist;

Example/ASBPlayerSubtitlingExample.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>