# cudascale

A CUDA based video resizing element

## Example launch line

    gst-launch-1.0 videotestsrc ! video/x-raw,width=640,height=480 ! cudaupload ! cudascale ! cudadownload ! video/x-raw,width=1280,height=720 ! fakesink

This will upload a 640x480 resolution test video to CUDA memory space and resize it to 1280x720 resolution. Then a resized CUDA frame will be downloaded to system memory space.

## Hierarchy

    GObject
        ╰──GInitiallyUnowned
            ╰──GstObject
                ╰──GstElement
                    ╰──GstBaseTransform
                        ╰──GstCudaBaseTransform
                            ╰──GstCudaBaseConvert
                                ╰──cudascale

## Factory details

Authors: – Seungha Yang

Classification: – `Filter/Converter/Video/Scaler/Hardware`

Rank – none

Plugin – nvcodec

Package – GStreamer Bad Plug-ins

## Pad Templates

### `sink`

    video/x-raw(memory:CUDAMemory):
             format: { I420, YV12, NV12, NV21, P010_10LE, P012_LE, P016_LE, I420_10LE, I420_12LE, Y444, Y444_10LE, Y444_12LE, Y444_16LE, BGRA, RGBA, RGBx, BGRx, ARGB, ABGR, RGB, BGR, BGR10A2_LE, RGB10A2_LE, Y42B, I422_10LE, I422_12LE, RGBP, BGRP, GBR, GBRA, GBR_10LE, GBR_12LE, GBR_16LE, VUYA }
              width: [ 1, 2147483647 ]
             height: [ 1, 2147483647 ]
          framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – sink

Object type – GstPad

### `src`

    video/x-raw(memory:CUDAMemory):
             format: { I420, YV12, NV12, NV21, P010_10LE, P012_LE, P016_LE, I420_10LE, I420_12LE, Y444, Y444_10LE, Y444_12LE, Y444_16LE, BGRA, RGBA, RGBx, BGRx, ARGB, ABGR, RGB, BGR, BGR10A2_LE, RGB10A2_LE, Y42B, I422_10LE, I422_12LE, RGBP, BGRP, GBR, GBRA, GBR_10LE, GBR_12LE, GBR_16LE, VUYA }
              width: [ 1, 2147483647 ]
             height: [ 1, 2147483647 ]
          framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – src

Object type – GstPad

## Properties

### add-borders

    “add-borders” gboolean

Add borders if necessary to keep the display aspect ratio

Flags : Read / Write

Default value : true

Since : 1.22

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