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Secondary Audio The audio stream associated with the BD Secondary Video stream Comes from the disc or from Local Storage Secondary Video A supplemental video stream for picture-in-picture (PIP) display in the Primary Video Comes from the disc or from Local Storage sector A logical or physical group of bytes recorded on the disc, the smallest addressable unit A DVD sector contains 38,688 bits of channel data and 2,048 bytes of user data seek time The time it takes for the head in a drive to move to a data track SEI Supplemental enhancement information Messages in an AVC bitstream that can be used for any variety of reasons to communicate information to a playback device sequential presentation Playback of all Programs in a Title in a specified order determined in the authoring process Serial Digital Interface (SDI) The professional digital video connection format using a 270 Mbps transfer rate A 10-bit, scrambled, polarity-independent interface, with common scrambling for both component ITU-R 601 and composite digital video and four groups each of four channels of embedded digital audio SDI uses standard 75-ohm BNC connectors and coax cable setup The black level of a video signal SFF 8090 The specification number 8090 of the Small Form Factor Committee, an ad hoc group formed to promptly address disk industry needs and to develop recommendations to be passed on to standards organizations SFF 8090 (also known as the Mt Fuji specification) defines a command set for CD-ROM- and DVD-ROM-type devices, including implementation notes for ATAPI and SCSI shuffle presentation A function of a DVD-Video player enabling Programs in a Title to play in an order determined at random SI Syst me International (d Unit s) International System (of Units) A complete system of standardized units and prefixes for fundamental quantities of length, time, volume, mass, etc signal-to-noise ratio The ratio of pure signal to extraneous noise, such as tape hiss or video interference Signal-to-noise ratio is measured in decibels (dB) Analog recordings almost always have noise Digital recordings, when properly prefiltered and not compressed, have no noise simple profile (SP) A subset of the syntax of the MPEG-2 video standard designed for simple and inexpensive applications such as software SP does not enable B pictures See profile simulate To test the function of a DVD disc in the authoring system without actually formatting an image single-sided disc A type of DVD disc on which data is recorded on one side only SMPTE The Society of Motion Picture and Television Engineers An international research and standards organization This group developed the SMPTE time code, used for marking the position of audio or video in time SMPTE VC-1 See VC-1 son The metal discs produced from mother discs in the replication process Fathers or sons are used in molds to stamp discs SP@ML Simple profile at main level The simplest MPEG-2 format used by DVD Most discs use MP@ML SP does not allow B pictures space The reflective area of a writable optical disc Equivalent to a land spatial Relating to space, usually two-dimensional Video can be defined by its spatial characteristics (information from the horizontal plane and vertical plane) and its temporal characteristics (information at different instances in time) spatial resolution The clarity of a single image or the measure of detail in an image See resolution SPDC Self-protecting digital content An architecture that applies content protection mechanisms (code) on the content (disc) rather than on the playback device Developed by Cryptography Research (CRI) and adapted for BD as BD+.

#include <stdioh> #include <stringh> int main(int argc, char *argv[]) {

The Label class is a control that displays a text string or image within a form. This class is part of the of the System.Windows.Forms namespace, and inherits from the Control class. A Label object can be assigned a tab index, but when activated the next control in the tab order will always receive focus. See .NET Table 4.1 on page 104 for a list of members inherited from the Control class. AutoSize BorderStyle Gets or sets whether the label should automatically resize to display its contents. Gets or sets the border for the label, taken from the BorderStyle enumeration. The default is None. Gets or sets the flat style for the label, using the

if(argc != 3) { printf("Use two command-line args"); return 1; } if(!strnicmp(argv[1], argv[2], 8)) printf("The filenames are the same\n"); else printf("The filenames differ\n"); return 0; }

Gets or sets the image to appear on the label. Gets or sets an ImageList object to associate with the label. The ImageIndex property determines which image is displayed on the label. Gets the height of the control, in pixels, assuming a single line of text is displayed. Gets the width of the control, in pixels, assuming a single line of text is displayed. Gets or sets the text alignment to use for text in the control. Gets or sets whether an ampersand (&) in the Text property is interpreted as an access key prefix character. Occurs when the value of the AutoSize property changes. Occurs when the value of the TextAlign property changes.

strnchr( ), strcmp( ), strncpy( )

G-37

char *strncpy(char *dest, const char *source, size_t count)

This tab order behavior is especially relevant for the assigned access key, also called a mnemonic For example, the ampersand character & in the Photo File label defines the F character as the access key Typing the keystroke Alt+F sets the focus to this label When you do this, the txtPhotoFile control actually receives the focus Similarly, typing Alt+P for the Caption label will set the focus to the txtCaption control Such mnemonics are very useful for users, myself included, who prefer to avoid the mouse and keep their fingers on the keyboard Labels include other features as well, of course As we saw in chapter 8, they can display a border and define an alignment for displayed text These and other features of the Label class are summarized in NET Table 91.

The prototype for strncpy( ) is found in <stringh> The strncpy( ) function is used to copy up to count characters from the string pointed to by source into the string pointed to by dest The source must be a pointer to a null-terminated string The strncpy( ) function returns a pointer to dest If dest and source overlap, the behavior of strncpy( ) is undefined If the string pointed to by source has fewer than count characters, nulls are appended to the end of dest until count characters have been copied Alternately, if the string pointed to by source is longer than count characters, the resulting string pointed to by dest is not null-terminated

The Label class is also the parent of the LinkLabel class, which adds the ability to perform an action when the text on the label is clicked, similar to an HTML link in a web browser We will use the LinkLabel class in chapter 18 while discussing how to include ActiveX controls on a form We will use Label objects again in future sections For now, let s move on to discuss some of the features of our TextBox controls, and the TextBox class in general 923 CREATING THE MULTILINE TEXT BOX The TextBox controls on our form are used to display various properties of the Photograph object We have already created the text box controls within the panel area In this section we create the text box for displaying the Photograph.

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The following code fragment copies at most 79 characters of str1 into str2, thus ensuring that no array boundary overflow will occur:

char str1[128], str2[80]; gets(str1); strncpy(str2, str1, 79);