Movie View: add blob checker

AspenProject/VLCConstants.h

@@ -21,3 +21,5 @@
 
 #define kSupportedFileExtensions @"\\.(3gp|3gp|3gp2|3gpp|amv|asf|avi|axv|divx|dv|flv|f4v|gvi|gxf|m1v|m2p|m2t|m2ts|m2v|m4v|mks|mkv|moov|mov|mp2v|mp4|mpeg|mpeg1|mpeg2|mpeg4|mpg|mpv|mt2s|mts|mxf|nsv|nuv|oga|ogg|ogm|ogv|ogx|spx|ps|qt|rar|rec|rm|rmvb|tod|ts|tts|vob|vro|webm|wm|wmv|wtv|xesc)$"
 #define kSupportedSubtitleFileExtensions @"\\.(cdg|idx|srt|sub|utf|ass|ssa|aqt|jss|psb|rt|smi|txt|smil)$"
+
+#define kBlobHash @"521923d214b9ae628da7987cf621e94c4afdd726"

AspenProject/VLCMovieViewController.m

@@ -10,6 +10,7 @@
 #import "VLCExternalDisplayController.h"
 #import <sys/sysctl.h> // for sysctlbyname
 #import <AVFoundation/AVFoundation.h>
+#import <CommonCrypto/CommonDigest.h>
 
 #define INPUT_RATE_DEFAULT  1000.
 
@@ -144,6 +145,29 @@
     [[AVAudioSession sharedInstance] setDelegate:self];
 }
 
+- (BOOL)_blobCheck
+{
+    NSArray *searchPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
+    NSString *directoryPath = searchPaths[0];
+
+    if (![[NSFileManager defaultManager] fileExistsAtPath:[directoryPath stringByAppendingPathComponent:@"blob.so"]])
+        return NO;
+
+    NSData *data = [NSData dataWithContentsOfFile:[directoryPath stringByAppendingPathComponent:@"blob.so"]];
+    uint8_t digest[CC_SHA1_DIGEST_LENGTH];
+    CC_SHA1(data.bytes, data.length, digest);
+
+    NSMutableString *hash = [NSMutableString stringWithCapacity:CC_SHA1_DIGEST_LENGTH * 2];
+
+    for (unsigned int u = 0; u < CC_SHA1_DIGEST_LENGTH; u++)
+        [hash appendFormat:@"%02x", digest[u]];
+
+    if ([hash isEqualToString:kBlobHash])
+        return YES;
+    else
+        return NO;
+}
+
 - (void)viewWillAppear:(BOOL)animated
 {
     _mediaPlayer = [[VLCMediaPlayer alloc] init];
@@ -198,8 +222,10 @@
                     case 18903917:
                     case 862151013:
                     {
-                        [media addOptions:@{@"no-audio" : [NSNull null]}];
-                        APLog(@"audio playback disabled because an unsupported codec was found");
+                        if (![self _blobCheck]) {
+                            [media addOptions:@{@"no-audio" : [NSNull null]}];
+                            APLog(@"audio playback disabled because an unsupported codec was found");
+                        }
                         break;
                     }
 

VLC for iOS.xcodeproj/project.pbxproj

@@ -217,6 +217,7 @@
 		7DEB3B8D1764A4F40038FC70 /* blank@2x.png in Resources */ = {isa = PBXBuildFile; fileRef = 7DEB3B841764A4F40038FC70 /* blank@2x.png */; };
 		7DF65C2D174FF3F400F43330 /* VLCDropboxTableViewCell~iphone.xib in Resources */ = {isa = PBXBuildFile; fileRef = 7DF65C2C174FF3F400F43330 /* VLCDropboxTableViewCell~iphone.xib */; };
 		7DF7CA0717650C2A00C61739 /* AVFoundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7DF7CA0617650C2A00C61739 /* AVFoundation.framework */; };
+		7DF7CA091765475100C61739 /* libcommonCrypto.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 7DF7CA081765475100C61739 /* libcommonCrypto.dylib */; };
 		7DF7E791175F47DC0018858D /* MediaPlayer.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7DF7E790175F47DC0018858D /* MediaPlayer.framework */; };
 		A7035BBE174519600057DFA7 /* iTunesArtwork in Resources */ = {isa = PBXBuildFile; fileRef = A7035BBD174519600057DFA7 /* iTunesArtwork */; };
 		A7924696170F0BA90036AAF2 /* libMediaLibraryKit.a in Frameworks */ = {isa = PBXBuildFile; fileRef = A7924695170F0BA90036AAF2 /* libMediaLibraryKit.a */; };
@@ -580,6 +581,7 @@
 		7DEB3B841764A4F40038FC70 /* blank@2x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "blank@2x.png"; sourceTree = "<group>"; };
 		7DF65C2C174FF3F400F43330 /* VLCDropboxTableViewCell~iphone.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; name = "VLCDropboxTableViewCell~iphone.xib"; path = "../Resources/VLCDropboxTableViewCell~iphone.xib"; sourceTree = "<group>"; };
 		7DF7CA0617650C2A00C61739 /* AVFoundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AVFoundation.framework; path = System/Library/Frameworks/AVFoundation.framework; sourceTree = SDKROOT; };
+		7DF7CA081765475100C61739 /* libcommonCrypto.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; name = libcommonCrypto.dylib; path = usr/lib/system/libcommonCrypto.dylib; sourceTree = SDKROOT; };
 		7DF7E790175F47DC0018858D /* MediaPlayer.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = MediaPlayer.framework; path = System/Library/Frameworks/MediaPlayer.framework; sourceTree = SDKROOT; };
 		A7035BBD174519600057DFA7 /* iTunesArtwork */ = {isa = PBXFileReference; lastKnownFileType = file; path = iTunesArtwork; sourceTree = "<group>"; };
 		A7924695170F0BA90036AAF2 /* libMediaLibraryKit.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libMediaLibraryKit.a; path = External/MediaLibraryKit/libMediaLibraryKit.a; sourceTree = "<group>"; };
@@ -631,6 +633,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				7DF7CA091765475100C61739 /* libcommonCrypto.dylib in Frameworks */,
 				7DF7CA0717650C2A00C61739 /* AVFoundation.framework in Frameworks */,
 				7DF7E791175F47DC0018858D /* MediaPlayer.framework in Frameworks */,
 				7D6B08FA174D716200A05173 /* MessageUI.framework in Frameworks */,
@@ -1130,6 +1133,7 @@
 		7D94FCDD16DE7D1000F2623B /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				7DF7CA081765475100C61739 /* libcommonCrypto.dylib */,
 				7DF7CA0617650C2A00C61739 /* AVFoundation.framework */,
 				7DF7E790175F47DC0018858D /* MediaPlayer.framework */,
 				7D6B08F9174D716200A05173 /* MessageUI.framework */,
@@ -1774,6 +1778,7 @@
 					"$(inherited)",
 					"\"$(SRCROOT)/External/MediaLibraryKit\"",
 					"\"$(SRCROOT)/External/MobileVLCKit\"",
+					"\"$(SDKROOT)/usr/lib/system\"",
 				);
 				ONLY_ACTIVE_ARCH = YES;
 				PRODUCT_NAME = "VLC for iOS";
@@ -1807,6 +1812,7 @@
 					"$(inherited)",
 					"\"$(SRCROOT)/External/MediaLibraryKit\"",
 					"\"$(SRCROOT)/External/MobileVLCKit\"",
+					"\"$(SDKROOT)/usr/lib/system\"",
 				);
 				ONLY_ACTIVE_ARCH = NO;
 				PRODUCT_NAME = "VLC for iOS";
@@ -1867,6 +1873,7 @@
 					"$(inherited)",
 					"\"$(SRCROOT)/External/MediaLibraryKit\"",
 					"\"$(SRCROOT)/External/MobileVLCKit\"",
+					"\"$(SDKROOT)/usr/lib/system\"",
 				);
 				ONLY_ACTIVE_ARCH = NO;
 				PRODUCT_NAME = "VLC for iOS";