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Viz Engine Administrator Guide

Version 5.1 | Published November 09, 2023 ©

Video Output: Clip Output

Matrox Clip Out channel writes surfaces from your Matrox device into clip files. This can be used for example to record your output into a single clip file.

To Configure Clip Output

In the Video Output: Clip Output panel, configure the available Clip Channel outputs.

images/download/attachments/125465333/v4_cfg_videoout.png

  • Capture Enable: Enables or disables the clip writer functionality. The main use is to give control over host memory resources. When the clip writer functionality is not needed, the clip out channel does not need to be allocated.

  • Pipeline Size: Controls the number of frames that the clip writer uses to handle a file. It is recommended to leave the default value.

  • Default Profile: Contains a default profile that can be loaded on request, with the command RENDERER*VIDEO*CLIPOUT*1*PROFILE APPLY. Example:

    # the <self> placeholder gets replaced with the proper RENDERER*VIDEO*CLIPOUT*1
    ClipOut1.profile.default_1 = <self>*CREATE VIDEO_SET On
    ClipOut1.profile.default_2 = <self>*RESOLUTION VIDEO_SET 0 0
    ClipOut1.profile.default_3 = <self>*CONTAINER VIDEO_SET XDCAM_MXF
    ClipOut1.profile.default_4 = <self>*CODEC VIDEO_SET 22
    ClipOut1.profile.default_5 = <self>*OPTION VIDEO_SET AUDIO ch=8
    ClipOut1.profile.default_6 = <self>*OPTION VIDEO_SET TC startTC=10:00:00:00
    ClipOut1.profile.default_7 = <self>*NAME SET d:/out/<base_scene2_name>/<clip_name>

Clip-out Channel Placeholders

The available placeholders for clip-out channel are:

Variable

Definition

<hostname>

Expands to the host name.

<if0>

Expands to the IPV4 network address of the first network interface.

<if1>

Expands to the IPV4 network address of the second network interface.

<if2>

Expands to the IPV4 network address of the third network interface.

<absolute_scene_name>

Expands to the complete path of the loaded scene.

<absolute_scene2_name>

Expands to the complete path of the loaded scene2.

Sample Commands

1080i50 A MPEG-2 Codec / MpegIFrame422ProfileHighLevel_WithAlpha with a Bitrate of 150 and 16 Channel Audio

RENDERER*VIDEO*CLIPOUT*1*CREATE VIDEO_SET ON
RENDERER*VIDEO*CLIPOUT*1*RESOLUTION VIDEO_SET 0 0
RENDERER*VIDEO*CLIPOUT*1*CONTAINER VIDEO_SET AVI
RENDERER*VIDEO*CLIPOUT*1*CODEC VIDEO_SET 36
RENDERER*VIDEO*CLIPOUT*1*OPTION VIDEO_SET AUDIO ch=16 bits=24/32
RENDERER*VIDEO*CLIPOUT*1*OPTION VIDEO_SET IFRAME bitrate=150
RENDERER*VIDEO*CLIPOUT*1*NAME SET "D:\clipout\1080i50_MPEG-2__MpegIFrame422ProfileHighLevel_WithAlpha[ch=16 bits=24-32][bitrate=150]"
RENDERER*VIDEO*CLIPOUT*1*CONTROL START
...
RENDERER*VIDEO*CLIPOUT*1*CONTROL PAUSE
RENDERER*VIDEO*CLIPOUT*1*CONTROL FLUSH

1080p50 Video AVC-Intra Encoder / AVCIntraClass50 with Timecode, No Audio

RENDERER*VIDEO*CLIPOUT*1*CREATE VIDEO_SET ON
RENDERER*VIDEO*CLIPOUT*1*RESOLUTION VIDEO_SET 0 0
RENDERER*VIDEO*CLIPOUT*1*CONTAINER VIDEO_SET P2_MXF
RENDERER*VIDEO*CLIPOUT*1*CODEC VIDEO_SET 43
RENDERER*VIDEO*CLIPOUT*1*OPTION VIDEO_SET AVCINTRA profile=1
RENDERER*VIDEO*CLIPOUT*1*OPTION VIDEO_SET TC startTC=00:10:00:00
RENDERER*VIDEO*CLIPOUT*1*NAME SET "D:\clipout\1080p50_Video_AVC-Intra_Encoder_AVCIntraClass50[TimeCode]"
RENDERER*VIDEO*CLIPOUT*1*CONTROL START
...
RENDERER*VIDEO*CLIPOUT*1*CONTROL PAUSE
RENDERER*VIDEO*CLIPOUT*1*CONTROL FLUSH

720p DVCPRO 100 Codec / D12_720_4to3_422_Fr1 Four Channel Audio

RENDERER*VIDEO*CLIPOUT*1*CREATE VIDEO_SET ON
RENDERER*VIDEO*CLIPOUT*1*RESOLUTION VIDEO_SET 0 0
RENDERER*VIDEO*CLIPOUT*1*CONTAINER VIDEO_SET AVI
RENDERER*VIDEO*CLIPOUT*1*CODEC VIDEO_SET 17
RENDERER*VIDEO*CLIPOUT*1*OPTION VIDEO_SET AUDIO ch=4 bits=24/32
RENDERER*VIDEO*CLIPOUT*1*NAME SET "D:\clipout\720p60M_DVCPRO_100__D12_720_4to3_422_Fr1[ch=4 bits=24-32]"
...
RENDERER*VIDEO*CLIPOUT*1*CONTROL PAUSE
RENDERER*VIDEO*CLIPOUT*1*CONTROL FLUSH

UHD 2160p XAVC Eight Channel Audio with M264 Encoder

RENDERER*VIDEO*CLIPOUT*1*CREATE VIDEO_SET On
RENDERER*VIDEO*CLIPOUT*1*CREATE AUDIO_SET Off
RENDERER*VIDEO*CLIPOUT*1*CREATE KEY_SET Off
RENDERER*VIDEO*CLIPOUT*1*RESOLUTION VIDEO_SET 0 0
RENDERER*VIDEO*CLIPOUT*1*CONTAINER VIDEO_SET XAVC_MXF
RENDERER*VIDEO*CLIPOUT*1*CODEC VIDEO_SET 47
RENDERER*VIDEO*CLIPOUT*1*OPTION VIDEO_SET AUDIO ch=8 bits=24/32
RENDERER*VIDEO*CLIPOUT*1*OPTION VIDEO_SET XAVC profile=HDIntra100CBG use_hw=1
RENDERER*VIDEO*CLIPOUT*1*NAME SET "C:\test.mxf"
RENDERER*VIDEO*CLIPOUT*1*CONTROL RECORD 1000

Information: To record in XAVC UHD, the output color depth must be set to 10-bit (output_bpc = 10). Recording in XAVC UHD requires a M264 board. (OPTION VIDEO_SET XAVC profile=HDIntra100CBG use_hw=1)