binary - How to parse out information of WMV file in C# -

-

i want information of asf file bitrate, metadata, language...i have read asf specification , know asf file has parts : header object, data object, index object. @ frist, think asf file's binary file , try solve class , function in c# : filestream, binaryreader :

string path = @"e:\khoaluantn\streaming video server\video\encoder_ad.wmv";         filestream filer = file.openread(path);         binaryreader br = new binaryreader(filer);                  byte [] file = br.readbytes(100);

then, try convert string :

 textbox1.text = encoding.ascii.getstring ( file );

but doesn't display expect. displays nonsensical string: 0&?u?f? ??. please show me how convert information in asf file string.

you can check out asfmojo on codeplex. offers simple api extract of information interested in:

sample code

using (asffile asffile = new asffile(samplefilename)) {     //get bitrate     uint asfbitrate = asffile.packetconfiguration.asfbitrate;     console.writeline("bitrate: " + asfbitrate);      //get language     var languageobject = (asflanguagelistobject)asffile.getasfobjectbytype(asfguid.asf_language_list_object).firstordefault();     if (languageobject != null)     {         foreach (string language in languageobject.languages)             console.writeline("language: " + language);     }      //get metadata     var metadataobject = (asfmetadataobject)asffile.getasfobjectbytype(asfguid.asf_metadata_object).firstordefault();     if (metadataobject != null)     {         foreach (var item in metadataobject.descriptionrecords)             console.writeline(string.format("{0}: {1} (stream #{2})", item.name, item.value, item.streamnumber));     } }


sample output

this creates following output sample file:

bitrate: 455932 language: en-us isvbr: false (stream #1) deviceconformancetemplate: l2 (stream #1) isvbr: false (stream #2) deviceconformancetemplate: mp@ml (stream #2)

Comments

Post a Comment

Popular posts from this blog

iphone - Using nested NSDictionary with Picker -

-
newbie here, i have single component picker set plist, each item being array, multiple strings in each array app uses. currently plist structure this: nsdictionary -> nsarray -> nsstring | | items in picker data each item but now, want: nsdictionary -> nsdictionary -> nsarray -> nsstring | | | different picker data sets items in picker data each item so there multiple sets of picker components show using segmented control etc... i'm not sure if possible, , hoping save me making many different separate picker controllers. what has me stumped getting ingested properly this have now, builds crashes (debug info below): nsbundle *bundle = [nsbundle mainbundle]; nsstring *plistpath = [bundle pathforresource:@"camerasdatabase" oftype:@"plist"]; nsdictionary *dictionary = [[nsdictionary alloc] initwithcontentsoffi...
Read more

javascript - Iterate over array and calculate average values of array-parts -

-
i have array this: ["2011-06-16 16:37:20",23.2], ["2011-06-21 16:37:20",35.6], ["2011-06-26 16:37:20",41.8], ["2011-07-01 16:37:20",25], ["2011-07-06 16:37:20",22.8], ["2011-07-11 16:37:20",36.4], ["2011-07-16 16:37:20",34], ["2011-07-21 16:37:20",20] [...] format: [$date,count] now need add 3rd 4th value every array element, average of n counts before or after. example if n=3 the 3rd value should average of 3 count-values before , 4th value should average of 3 count-values after current array element. result that: ["2011-06-16 16:37:20",23.2, null, 34.13], ["2011-06-21 16:37:20",35.6, null, 29.86], ["2011-06-26 16:37:20",41.8, null, 28.06], ["2011-07-01 16:37:20",25, 33.53, 31.06], ["2011-07-06 16:37:20",22.8, 34.13, 30.13], ["2011-07-11 16:37:20",36.4, 29.86, null], ["2011-07-16 16:37:20",34, 28.06, null], ["2...
Read more

php - accessing mysql using different server to which db connection data is located -

-
i'm trying include file db connection info (hostname password username). this have far: include ('http://site.com/config35sdf322e54353452d/wp2154654315634652132513546541564.php'); mysql_connect($hostname,$username,$password); @mysql_select_db($dbname) or die( "unable select database"); include ('../refference.php'); $select = mysql_query("select my_field $usertable ". "gdi_username = '$sponsor_gdi_id' , unique_id = '$sponsor_refference'"); while($check = mysql_fetch_array($select)) { $sponsor_email = $check["email"]; $sponsor = $check["gdi_username"]; $sponsor_first_nme = $check["first_name"]; $sponsor_second_nme = $check["last_name"]; $sponsor_domain = $check["gdi_domain"]; $unq_id = $check["unique_id"]; } $sponsor_name = "$sponsor_first_nme $sponsor_second_nme"; echo "$sponsor $hostname" ?> i err...
Read more