Read Binary File

Read video data from binary file

• 

Libraries:
Computer Vision Toolbox / Sinks

Description

The Read Binary File block reads the video data from a binary file and imports it into a Simulink^® model.

The user-specified block parameters describe the format of the video data. These parameters, along with the raw binary file, create the video data for the Simulink model.

Note

This block supports code generation for only those platforms that have file I/O. The block does not support code generation using Simulink Desktop Real-Time™ or Simulink Real-Time™.

Examples

Read Video Stored as Binary Data

Read a video data stored in binary format by using the Read Binary File block.

• Open Script

Ports

Output

Y' — Luminance component

3-D array

Luminance component of the video read from the binary file, specified as a 3-D array. The label of this port can be changed using the Component1 parameter when the Video format parameter is set to Custom.

Data Types: int8 | int16 | int32 | uint8 | uint16 | uint32

Cb — Blue difference component

3-D array

Blue difference component of the video read from the binary file, specified as a 3-D array. The label of this port can be changed using the Component2 parameter when the Video format parameter is set to Custom.

Data Types: int8 | int16 | int32 | uint8 | uint16 | uint32

Cr — Red difference component

3-D array

Red difference component of the video read from the binary file, specified as a 3-D array. The label of this port can be changed using the Component3 parameter when the Video format parameter is set to Custom.

Data Types: int8 | int16 | int32 | uint8 | uint16 | uint32

A — Alpha component

3-D array

Alpha component of the video read from the binary file, specified as a 3-D array. The label of this port can be changed using the Component4 parameter when the Video format parameter is set to Custom.

Dependencies

To enable this port, use one of these options.

• Set the Video format parameter to Four character codes and set the Four character code parameter to AYUV or IF09.

• Set the Video format parameter to Custom and the Number of output components parameter to 4.

Data Types: int8 | int16 | int32 | uint8 | uint16 | uint32

T — Transparency component

3-D array

Transparency component of the video read from the binary file, specified as a 3-D array.

Dependencies

To enable this port, set the Video format parameter to Four character codes and set the Four character code parameter to Y41T or Y42T.

Data Types: int8 | int16 | int32 | uint8 | uint16 | uint32

EOF — Last video frame indicator

scalar

The port outputs a 1 when the component ports output the last video frame. For every frame before that, it outputs a 0.

Dependencies

To enable this port, select the Output end-of-file indicator parameter.

Data Types: Boolean

Parameters

File name — Name of binary file

vipmen.bin (default) | file name

Specify the name of the binary source file to read video data from.

Video format — Format of video data

Four character codes (default) | Custom

Specify the format of the video data as one of these options.

• Four character codes (FOURCC) — For more information about these codes, see https://en.wikipedia.org/wiki/FourCC.

• Custom — Read the video data from a binary file of a custom format.

Four character code — Format of binary file

I420 (default) | AYUV | CLJR | cyuv | GREY | IF09 | IMC1 | IMC2 | IMC3 | IMC4 | IUYV | IY41 | IYU1 | IYU2 | IYUV | NV12 | NV21 | UYNV | UYNY | V210 | Y411 | Y41P | Y41T | Y422 | Y42T | Y8 | Y800 | YUNV | YUY2 | YUYV | YV12 | YV16 | YVU9 | YVYU | ...

Specify the four character code of the binary file codec. The value of this parameter also sets the number of output ports. For information on which four character codes enable which output ports, see the table below.

Output Ports for Four Character Codes

Four Character Codes	Output Ports
I420	Y'|Cb|Cr
AYUV	Y'|Cb|Cr|A
CLJR	Y'|Cb|Cr
cyuv	Y'|Cb|Cr
GREY	Y'
IF09	Y'|Cb|Cr|A
IMC1	Y'|Cb|Cr
IMC2	Y'|Cb|Cr
IMC3	Y'|Cb|Cr
IMC4	Y'|Cb|Cr
IUYV	Y'|Cb|Cr
IY41	Y'|Cb|Cr
IYU1	Y'|Cb|Cr
IYU2	Y'|Cb|Cr
IYUV	Y'|Cb|Cr
NV12	Y'|Cb|Cr
NV21	Y'|Cb|Cr
UYNV	Y'|Cb|Cr
UYNY	Y'|Cb|Cr
V210	Y'|Cb|Cr
Y411	Y'|Cb|Cr
Y41P	Y'|Cb|Cr
Y41T	Y'|Cb|Cr|T
Y422	Y'|Cb|Cr
Y42T	Y'|Cb|Cr|T
Y8	Y'
Y800	Y'
YUNV	Y'|Cb|Cr
YUY2	Y'|Cb|Cr
YUYV	Y'|Cb|Cr
YV12	Y'|Cb|Cr
YV16	Y'|Cb|Cr
YVU9	Y'|Cb|Cr
YVYU	Y'|Cb|Cr

Dependencies

To enable this parameter, set the Video format parameter to Four character codes.

FrameSize Rows — Number of rows in output array

120 (default) | positive integer

Specify the number of rows in the output array as a positive integer. The value of this parameter must match the dimensions of the data inside the file.

Dependencies

To enable this parameter, set the Video format parameter to Four character codes.

FrameSize Cols — Number of columns in output array

160 (default) | positive integer

Specify the number of columns in the output array as a positive integer. The value of this parameter must match the dimensions of the data inside the file.

Dependencies

To enable this parameter, set the Video format parameter to Four character codes.

Line ordering — Output array fill direction

Top line first (default) | Bottom line first

If you select Top line first, the block first fills the first row of the output array with the corresponding contents of the binary file. It then fills the other rows in increasing order. When you select Bottom line first, the block first fills the last row of the output array with the corresponding contents of the binary file. It then fills the other rows in decreasing order.

Number of times to play file — Number of times to play the file

1 (default) | positive integer | inf

Specify the number of times to repeat the binary file as a positive integer or inf. For any positive integer value n of this parameter, the block plays the binary file n times. For a value of inf, the block plays the file indefinitely until the end of simulation.

Output end-of-file indicator — Indicate when block output reaches last frame

off (default) | on

This parameter indicates when the block output reaches the last video frame in the binary file. Selecting this parameter enables the EOF port. The output from the EOF port is 1 when the block output reaches the last video frame. For all other frames, it is 0.

Sample time — Sample period of output

1/30 (default) | positive scalar | -1

Specify the sample period of the output. Sample time indicates when, during simulation the block produces output. The value of this parameter must be a positive scalar less than the simulation time or -1. It cannot be 0. When set to -1, the block inherits the sample time from the simulink model.

Bit stream format — Specifies if data is planar or packed

Planar (default) | Packed

Specify the data format of the binary file as planar or packed. If the data is packed, use the FrameSize Rows and FrameSize Cols parameters to define the size of the output array.

Dependencies

To enable this parameter, set the Video format parameter to Custom.

Number of output components — Number of components in binary file

3 (default) | 1 | 2 | 4

Specify the number of output components from the binary file. This parameter sets the number of output ports.

Dependencies

To enable this parameter, set the Video format parameter to Custom.

Component1 — Name for luminance component

Y' (default) | component name

Specify the name for the luminance component of the output array. The luminance component is the first component from the input binary file.

Dependencies

To enable this parameter, set the Video format parameter to Custom, set the Number of output components parameter to 1 or greater.

Component2 — Name for blue difference component

Cb (default) | component name

Specify the name for the blue difference component of the output array. The blue difference component is the second component from the input binary file.

Dependencies

To enable this parameter, set the Video format parameter to Custom, set the Number of output components parameter to 2 or greater.

Component3 — Name for red difference component

Cr (default) | component name

Specify the name for the red difference component of the output array using this parameter. The red difference component is the third component from the input binary file.

Dependencies

To enable this parameter, set the Video format parameter to Custom, set the Number of output components parameter to 3 or greater.

Component4 — Name for alpha component

Alpha (default) | component name

Specify the name for the alpha component of the output array. The alpha component is the fourth component from the input binary file.

Dependencies

To enable this parameter, set the Video format parameter to Custom, set the Number of output components parameter to 4.

Bits1 — Size of luminance component

8 (default) | 16 | 24 | 32

Specify the size of the luminance component in the output array. The value of this parameter determines the interpretation of the video stream data as 8-bit, 16-bit, 24-bit, or 32-bit.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 1 or greater.

Bits2 — Size of blue difference component

8 (default) | 16 | 24 | 32

Specify the size of the blue difference component in the output array. The value of this parameter determines the interpretation of the video stream data as 8-bit, 16-bit, 24-bit, or 32-bit.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 2 or greater.

Bits3 — Size of red difference component

8 (default) | 16 | 24 | 32

Specify the size of the red difference component in the output array. The value of this parameter determines the interpretation of the video stream data as 8-bit, 16-bit, 24-bit, or 32-bit.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 3 or greater.

Bits4 — Size of alpha component

8 (default) | 16 | 24 | 32

Specify the size of the alpha component in the output array. The value of this parameter determines the interpretation of the video stream data as 8-bit, 16-bit, 24-bit, or 32-bit.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 4.

Rows1 — Number of rows for luminance component

120 (default) | positive integer

Specify the number of rows for the luminance component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 1 or greater.

Rows2 — Number of rows for blue difference component

60 (default) | positive integer

Specify the number of rows for the blue difference component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 2 or greater.

Rows3 — Number of rows for red difference component

60 (default) | positive integer

Specify the number of rows for the red difference component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 3 or greater.

Rows4 — Number of rows for alpha component

288 (default) | positive integer

Specify the number of rows for the alpha component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output ports parameter to 4.

Cols1 — Number of columns for luminance component

160 (default) | positive integer

Specify the number of columns for the luminance component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 1 or greater.

Cols2 — Number of columns for blue difference component

80 (default) | positive integer

Specify the number of columns for the blue difference component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 2 or greater.

Cols3 — Number of columns for red difference component

80 (default) | positive integer

Specify the number of columns for the luminance component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 3 or greater.

Cols4 — Number of columns for the alpha component

352 (default) | positive integer

Specify the number of columns for the alpha component in the output array. The value of this parameter must be a positive integer.

Dependencies

To enable this parameter, set the Video format parameter to Custom, and set the Number of output components parameter to 4.

Component order in binary file — Arrangement of components in binary file

[1 2 3] (default) | vector of valid component identifiers

Specify the arrangement of components in the binary file. Identify the components by the assigned numerals, from 1 to 4, in desired order. You must include all the enabled components when setting this parameter.

Dependencies

To enable this parameter, set the Video format parameter to Custom.

Interlaced video — Read video data from file as interlaced

off (default) | on

Select this parameter when the binary file contains interlaced video data.

Dependencies

To enable this parameter, set the Video format parameter to Custom.

Input file has signed data — File has signed integers

off (default) | on

Select this parameter when the binary file contains signed integers.

Dependencies

To enable this parameter, set the Video format parameter to Custom.

Byte order in binary file — Byte order of binary file

Little endian (default) | Big endian

Specify the byte order of the binary file as either little endian or big endian.

Dependencies

To enable this parameter, set the Video format parameter to Custom.

Block Characteristics

Data Types	integer
Multidimensional Signals	no
Variable-Size Signals	no

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced before R2006a