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H.264 now works with embedded YouTube videos; we have to HTML scrape …
…for this, though, and that adds ~100 KiB of extra data to download for each embedded YouTube video; I think that's acceptable

Signed-off-by: Jonathan 'Wolf' Rentzsch <jwr.git@redshed.net>
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Simone Manganelli authored and rentzsch committed Jul 1, 2009
1 parent 2c68335 commit fe5d72c
Showing 1 changed file with 57 additions and 2 deletions.
59 changes: 57 additions & 2 deletions Plugin/Plugin.m
Expand Up @@ -69,6 +69,7 @@ - (void) _loadContent: (NSNotification*) notification;
- (void) _loadContentForWindow: (NSNotification*) notification;

- (NSDictionary*) _flashVarDictionary: (NSString*) flashvarString;
- (NSDictionary*) _flashVarDictionaryFromYouTubePageHTML: (NSString*) youTubePageHTML;
- (NSString*) flashvarWithName: (NSString*) argName;
- (BOOL) _hasH264Version;
- (BOOL) _useH264Version;
Expand Down Expand Up @@ -169,7 +170,9 @@ - (id) initWithArguments:(NSDictionary *)arguments
if (videoId != nil) {
[self setVideoId:videoId];
} else {
// scrub the URL to determine the video_id
// it's an embedded YouTube flash view; scrub the URL to
// determine the video_id, then get the source of the YouTube
// page to get the Flash vars

NSString *videoIdFromURL = nil;
NSScanner *URLScanner = [[NSScanner alloc] initWithString:[self src]];
Expand All @@ -181,6 +184,16 @@ - (id) initWithArguments:(NSDictionary *)arguments
if (videoIdFromURL) [self setVideoId:videoIdFromURL];
}
[URLScanner release];

if (videoIdFromURL) {
NSString *URLString = [NSString stringWithFormat:@"http://youtube.com/watch?v=%@",videoIdFromURL];
NSURL *YouTubePageURL = [NSURL URLWithString:URLString];
NSError *pageSourceError = nil;
NSString *pageSourceString = [NSString stringWithContentsOfURL:YouTubePageURL
usedEncoding:nil
error:&pageSourceError];
if (! pageSourceError) _flashVars = [[self _flashVarDictionaryFromYouTubePageHTML:pageSourceString] retain];
}
}
}

Expand Down Expand Up @@ -925,6 +938,49 @@ - (NSDictionary*) _flashVarDictionary: (NSString*) flashvarString
return flashVarsDictionary;
}

- (NSDictionary*) _flashVarDictionaryFromYouTubePageHTML: (NSString*) youTubePageHTML
{
NSMutableDictionary* flashVarsDictionary = [ NSMutableDictionary dictionary ];
NSScanner *HTMLScanner = [[NSScanner alloc] initWithString:youTubePageHTML];

[HTMLScanner scanUpToString:@"var swfArgs = {" intoString:nil];
BOOL swfArgsFound = [HTMLScanner scanString:@"var swfArgs = {" intoString:nil];

if (swfArgsFound) {
NSString *swfArgsString = nil;
[HTMLScanner scanUpToString:@"}" intoString:&swfArgsString];
NSArray *arrayOfSWFArgs = [swfArgsString componentsSeparatedByString:@", "];
CTFForEachObject( NSString, currentArgPairString, arrayOfSWFArgs ) {
NSRange sepRange = [ currentArgPairString rangeOfString:@": "];
if (sepRange.location != NSNotFound) {
NSString *potentialKey = [currentArgPairString substringToIndex:sepRange.location];
NSString *potentialVal = [currentArgPairString substringFromIndex:NSMaxRange(sepRange)];

// we might need to strip the surrounding quotes from the keys and values
// (but not always)
NSString *key = nil;
if ([[potentialKey substringToIndex:1] isEqualToString:@"\""]) {
key = [potentialKey substringWithRange:NSMakeRange(1,[potentialKey length] - 2)];
} else {
key = potentialKey;
}

NSString *val = nil;
if ([[potentialVal substringToIndex:1] isEqualToString:@"\""]) {
val = [potentialVal substringWithRange:NSMakeRange(1,[potentialVal length] - 2)];
} else {
val = potentialVal;
}

[flashVarsDictionary setObject:val forKey:key];
}
}
}

[HTMLScanner release];
return flashVarsDictionary;
}

- (NSString*) flashvarWithName: (NSString*) argName
{
return [ _flashVars objectForKey: argName ];
Expand Down Expand Up @@ -1073,7 +1129,6 @@ - (IBAction)openFullscreenInQTPlayer:(id)sender;

NSString *scriptSource = [NSString stringWithFormat:
@"tell application \"QuickTime Player\"\nactivate\ngetURL \"%@\"\nrepeat while (display state of front document is not presentation)\ndelay 1\npresent front document scale screen\nend repeat\nrepeat while (playing of front document is false)\ndelay 1\nplay front document\nend repeat\nend tell",src];
NSLog(@"%@",scriptSource);
NSAppleScript *openInQTPlayerScript = [[NSAppleScript alloc] initWithSource:scriptSource];
[openInQTPlayerScript executeAndReturnError:nil];
[openInQTPlayerScript release];
Expand Down

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