Question

我正在使用以下代码将.mov文件上传到youtube。它上传成功但视频没有任何音频。如果我做错了，请告诉我....

- (void)uploadVideoFile {

  NSString *devKey = @"AI39si4w9QSgQj1JzNxzuiHhFbTm2iLt3mRerGh0UNvlryRPGgQhgIaJA8l95j4YwdC1jBIz6_JaX8eJm2GMgE06FtvIu7E9Sg";

  GDataServiceGoogleYouTube *service = [self youTubeService];
  [service setYouTubeDeveloperKey:devKey];

  NSString *username = txtYName.text;

  NSURL *url = [GDataServiceGoogleYouTube youTubeUploadURLForUserID:username];

  // load the file data
  NSString *path = [[NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"Documents/movie.mov"]] retain];
  NSData *data = [NSData dataWithContentsOfFile:path];
  NSString *filename = [path lastPathComponent];

  // gather all the metadata needed for the mediaGroup
  NSString *titleStr = txtName.text;
  GDataMediaTitle *title = [GDataMediaTitle textConstructWithString:titleStr];

  NSString *categoryStr = @"Comedy";
  GDataMediaCategory *category = [GDataMediaCategory mediaCategoryWithString:categoryStr];
  [category setScheme:kGDataSchemeYouTubeCategory];

  NSString *descStr = @"this is just test";
  GDataMediaDescription *desc = [GDataMediaDescription textConstructWithString:descStr];

  NSString *keywordsStr = @"SuperShredBros";
  GDataMediaKeywords *keywords = [GDataMediaKeywords keywordsWithString:keywordsStr];

  BOOL isPrivate = NO;

  GDataYouTubeMediaGroup *mediaGroup = [GDataYouTubeMediaGroup mediaGroup];
  [mediaGroup setMediaTitle:title];
  [mediaGroup setMediaDescription:desc];
  [mediaGroup addMediaCategory:category];
  [mediaGroup setMediaKeywords:keywords];
  [mediaGroup setIsPrivate:isPrivate];

  NSString *mimeType = [GDataUtilities MIMETypeForFileAtPath:path
                                             defaultMIMEType:@"video/quicktime"];

  // create the upload entry with the mediaGroup and the file data
  GDataEntryYouTubeUpload *entry;
  entry = [GDataEntryYouTubeUpload uploadEntryWithMediaGroup:mediaGroup
                                                        data:data
                                                    MIMEType:mimeType
                                                        slug:filename];

  SEL progressSel = @selector(ticket:hasDeliveredByteCount:ofTotalByteCount:);
  [service setServiceUploadProgressSelector:progressSel];

  GDataServiceTicket *ticket;
  ticket = [service fetchEntryByInsertingEntry:entry
                                           forFeedURL:url
                                             delegate:self
                             didFinishSelector:@selector(uploadTicket:finishedWithEntry:error:)];

  [self setUploadTicket:ticket];
//  [self updateUI];
}

请帮帮我。提前谢谢。

Answer 1

我认为您需要更改mime类型，如下所示

NSString *mimeType = [GDataUtilities MIMETypeForFileAtPath:fetchPath
                                           defaultMIMEType:@"video/mp4"];

这件事适合我，还有一件事我要上传.Mov文件不仅仅是.mp4或.m4a或.flv

Answer 2

以下应该可以帮助您：

GDataYouTubeMediaGroup *mediaGroup = [GDataYouTubeMediaGroup mediaGroup];
[mediaGroup setMediaTitle:title];
[mediaGroup setMediaDescription:desc];
[mediaGroup addMediaCategory:category]; 
[mediaGroup setMediaKeywords:keywords];
[mediaGroup setIsPrivate:NO];

NSString *mimeType = [GDataUtilities MIMETypeForFileAtPath:outputURL.relativePath defaultMIMEType:@"video/quicktime"];

GDataEntryYouTubeUpload *entry;
entry = [GDataEntryYouTubeUpload uploadEntryWithMediaGroup:mediaGroup data:data MIMEType:mimeType slug:filename];

SEL progressSel = @selector(ticket:hasDeliveredByteCount:ofTotalByteCount:);
[service setServiceUploadProgressSelector:progressSel];

GDataServiceTicket *ticket;
ticket = [service fetchEntryByInsertingEntry:entry forFeedURL:url delegate:self didFinishSelector:@selector(uploadTicket:finishedWithEntry:error:)];

供参考：Youtube Upload Quality

Answer 3

更改输出音频设置....应该是这样.....

audioOutputSettings = [NSDictionary dictionaryWithObjectsAndKeys:
                              [ NSNumber numberWithInt: kAudioFormatMPEG4AAC ], AVFormatIDKey,
                              [ NSNumber numberWithInt: 1 ], AVNumberOfChannelsKey,
                              [ NSNumber numberWithFloat: 44100.0 ], AVSampleRateKey,
                              [ NSNumber numberWithInt: 64000 ], AVEncoderBitRateKey,
                              [ NSData dataWithBytes: &acl length: sizeof( acl ) ], AVChannelLayoutKey,
                              nil];

Answer 4

我认为Youtube支持flv和mp4格式的视频文件。所以请改变mimetype。希望你得到预期的结果。

GData youtube视频上传丢失音频问题

4 个答案: