Video SDL Sink

Shows incoming samples as frames on a screen.

Parameters

Input Type

Byte or Short. Byte is unsigned chars, shorts is 16 bit integers

Input Width

number of samples per row

Input Height

number of rows per screen update

Display Width

After scaling: display width

Display Height

After scaling: display height

Framerate

Number of updates per second. If set to 0, make a new screen every (Input Width) · (Input Height) samples. (Recommended: set to 0, use modern Throttle with a maximum wait time low enough and as sample rate (Input Width) · (Input Height) · (desired frames per second))

Channels

Number of channels

1: Map the 0-255 (both for byte and short!) range to black to white

2: Interleaved: First input's samples are Y (ca. "gray"), second input's samples alternate between U and V (how bluegreenish or redpurplish a pixel is)

3: Y, U, V as separate inputs

Example Flowgraph

Media:Demonstrate sdl.grc

Source Files

C++ files

Short-consuming version

unsigned byte-consuming version

Header files

Short-consuming version

unsigned byte-consuming version

Public header files

Short-consuming version

unsigned byte-consuming version

Block definition

Block YAML