# Change display aspect ratio without changing width and height
**URL:** https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515
**Category:** Wowza Streaming Engine
**Created:** [October 31, 2013, 4:17pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515 "2013-10-31T16:17:28Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Moises\_Panisello](https://community.wowza.com/u/Moises_Panisello)
#### Post date: [October 31, 2013, 4:17pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/1 "2013-10-31T16:17:28Z")
Hello,
We are streaming with Adobe Flash Media Live Encoder into our wowza server a PAL video with 720x756 pixels anamorphic (16:9).
We configured the transrate.xml file like this:
* * *
true
test
mp4:${SourceStreamName}\_test
H.264
default
-1
match-source
720
576
0,0,0,0
high
1500000
true
5
PassThru
${SourceAudioBitrate}
* * *
We get an output stream from wowza media server like this:
* * *
General
ID : 1 (0x1)
Complete name : media.ts
Format : MPEG-TS
File size : 2.67 MiB
Duration : 9s 960ms
Overall bit rate mode : Variable
Overall bit rate : 2 239 Kbps
Video
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : 27
Duration : 10s 0ms
Bit rate mode : Variable
Maximum bit rate : 1 980 Kbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 5:4
Frame rate : 25.000 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Audio
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Muxing mode : ADTS
Codec ID : 15
Duration : 9s 891ms
Bit rate mode : Variable
Minimum bit rate : 85.1 Kbps
Maximum bit rate : 139 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Delay relative to video : 19ms
* * *
We would like to get this parameters:
* * *
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 16:9 (instead of 5:4)
Frame rate : 25.000 fps
Standard : PAL (instead of NTSC)
* * *
Is there a way to obtain these results changing some parameters of the transrate.xml file?
Thanks for advance,
Moisès
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [October 31, 2013, 6:59pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/2 "2013-10-31T18:59:01Z")
Moisès,
The Wowza Transcoder does not support anamorphic squeeze encoding. It does support decode of video with anamorphic squeeze, but not encode. So the Display aspect ratio is only a function of Width and Height
You will have to [verify following this guide](https://www.wowza.com/docs/how-to-control-transcoded-video-with-video-encoding-parameters) but you can probably set the encode to PAL by adding this Parameter to each Transcoder template /Encode /Video Parameters container:
```auto
mainconcept.video_format
1
Long
```
Look for this output in the access log with the logVideoEncodingParameters Property enabled to verify your system has this feature.
```auto
INFO server comment - # long: vui parameters: 1: PAL, 2: NTSC
INFO server comment - mainconcept.video_format: 2
```
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [November 13, 2013, 2:20pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/3 "2013-11-13T14:20:58Z")
Thanks for the update, Moisès. Glad it’s working
Richard
---
### Author:  [@Moises\_Panisello](https://community.wowza.com/u/Moises_Panisello)
#### Post date: [November 12, 2013, 12:26pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/4 "2013-11-12T12:26:23Z")
Richard,
Many thanks for your help.
Regards,
Moisès
---
### Author:  [@Moises\_Panisello](https://community.wowza.com/u/Moises_Panisello)
#### Post date: [November 13, 2013, 9:12am UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/5 "2013-11-13T09:12:28Z")
Hi again,
Finally, we achieved everything we needed.
The output of the access log was very helpfull:
* * *
INFO 200 - # long: vui parameters: sample aspect ratio: horizontal size in arbitrary units
INFO 200 - mainconcept.sar\_width: 1
INFO 200 - # long: vui parameters: sample aspect ratio: vertical size in arbitrary units
INFO 200 - mainconcept.sar\_height: 1
* * *
So we modified the transrate template to also obtain 16:9 aspect ratio with a 720x576 video resolution. We configured the pixel ratio as 16:11 (for an anamorphic wide screen; 16:9 =\> [http://en.wikipedia.org/wiki/Pixel\_aspect\_ratio](http://en.wikipedia.org/wiki/Pixel_aspect_ratio)):
* * *
mainconcept.video\_format
1
Long
mainconcept.sar\_width
16
Long
mainconcept.sar\_height
11
Long
* * *
So we got this:
* * *
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : PAL
* * *
Regards,
Moisès
---
### Author:  [@Growing\_Mature](https://community.wowza.com/u/Growing_Mature)
#### Post date: [August 3, 2014, 10:33pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/6 "2014-08-03T22:33:16Z")
You may also refer to this step by step guide on how to [change video aspect ratio](http://www.idealshare.net/video-converter/change-video-aspect-ratio.html)among 4:3, 16:9, 2.35:1, 1.85:1, 1:1, 21:9 etc
---
### Author:  [@Growing\_Mature](https://community.wowza.com/u/Growing_Mature)
#### Post date: [August 3, 2014, 10:36pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/7 "2014-08-03T22:36:10Z")
Just google search Step by Step Guide on **How to Change Video Aspect Ratio with iDealshare VideoGo** , you will find a detailed guide.
---
### Author:  [@TIM\_PAN](https://community.wowza.com/u/TIM_PAN)
#### Post date: [September 20, 2015, 10:22pm UTC](https://community.wowza.com/t/change-display-aspect-ratio-without-changing-width-and-height/41515/8 "2015-09-20T22:22:50Z")
HI, I think the best and simple way is use some kind of software, don’t need the coding staffs. I usually use the HD Video Converter Factory Pro [to change aspect ratio of video](http://www.videoconverterfactory.com/tips/change-aspect-ratio.html) to solve this kind of things. Hope it will help you.
Best