Lame Encoding iOS in queue -


i'm trying convert wav file mp3 file using lame.

i using code. want in background (or in queue). input file large, can take full control till finishing. can me so?

int read, write; file *pcm = fopen([mergefile cstringusingencoding:1], "rb");  //source fseek(pcm, 4*1024, seek_cur);                                   //skip file header file *mp3 = fopen([mp3filepath cstringusingencoding:1], "wb");  //output  const int pcm_size = 8192; const int mp3_size = 8192; short int pcm_buffer[pcm_size*2]; unsigned char mp3_buffer[mp3_size];  lame_t lame = lame_init(); lame_set_in_samplerate(lame, 44100); lame_set_vbr(lame, vbr_default); lame_init_params(lame);  {     read = fread(pcm_buffer, 2*sizeof(short int), pcm_size, pcm);     nslog(@"");     if (read == 0)         write = lame_encode_flush(lame, mp3_buffer, mp3_size);     else         write = lame_encode_buffer_interleaved(lame, pcm_buffer, read, mp3_buffer, mp3_size);  } while (read != 0);  lame_close(lame); fclose(mp3); fclose(pcm);

i use serial nsoperationqueue encoding.

nsoperationqueue *queue = [[nsoperationqueue alloc] init]; queue.maxconcurrentoperationcount = 1; #ifdef __iphone_8_0 queue.qualityofservice = /* nsqualityofservice */; #endif

you can add jobs this:

[queue addoperationwithblock:^{      /* encoding code goes here */      dispatch_async(dispatch_get_main_queue(), ^{          /* report operation status on completion (delegate, notification, etc...)      }];  }];

Comments

Post a Comment

Popular posts from this blog

Magento/PHP - Get phones on all members in a customer group -

i working on custom magento extension. working around adminhtml part , i've created custom form there. here form code: <?php class vivasindustries_smsnotification_block_adminhtml_sms_sendmass_edit_form extends mage_adminhtml_block_widget_form { public function _preparelayout() { $extensionpath = mage::getmoduledir('js', 'vivasindustries_smsnotification'); $head = $this->getlayout()->getblock('head'); $head->addjs('jquery.js'); $head->addjs('vivas.js'); return parent::_preparelayout(); } protected function _prepareform() { $form = new varien_data_form(array( 'id' => 'edit_form', 'action' => $this->geturl('*/*/save', array('id' => $this->getrequest()->get...
Read more

php - Bypass Geo Redirect for specific directories -

i'm trying bypass redirect specific url within site. wondering if might able help. the code below code use, original urls replaces example.com i'd able access http://example.com/admin without redirect occuring. is there way this, , there way using own ip? function country_geo_redirect() { $country = getenv('http_geoip_country_code'); if ($country == "us" ) { wp_redirect("http://usa.example.com/"); exit; } else if ($country == "gb" ) { wp_redirect("http://uk.example.com/"); exit; } } add_action('init', 'country_geo_redirect'); you can bypass redirection code if server found ip address. if ip address == <my ip address> ' nothing here else country_georedirect() end if
Read more

php - .htaccess mod_rewrite for dynamic url which has domain names -

i want convert url ex:( example.com/link.php?url=facebook.com ) ( example.com/facebook.com.php ) how can using .htaccess. or there other process make job easier ? i tried adding script .htaccess file options +followsymlinks rewriteengine on rewriterule url-(.*)\.htm$ link.php?url=$1 but converting url adding "url-" ( example.com/url-facebook.com.php ) i want remove "url-" , want make ( example.com/facebook.com.php ) rewriteengine on rewritecond %{the_request} ^get.*link\.php\?url\= [nc] rewritecond %{request_uri} !/system/.* [nc] rewriterule (.*?)link\.php\?url\=/*(.*) /$1$2 [r=301,ne,l] not sure how above work edit of used use remove index.php url
Read more