Convert 1080P to 720P using Handbrake !

[augustya]

Hi Guys,

I have a Ultra-Hi-Definition Video which is 435 MB and 1920x1080 Resolution Video. I wanna play it in the iPad-2 which has a Native Resolution of 1024x768. So I believe converting it will only be able to play it in iPad-2 right ?

Out of the available presets in Handbrake apart from the Preset for iPad any other preset that will give me still more rich picture quality and at the same time play in iPad. Anything else that I can choose from the available presets which will give me further better picture quality ? The Original Video I have is 1920x1080 so if I wanna convert it to say 1280x720 what Preset should I choose in Handbrake ?

Thanks !

[edDV]

If you want an optimal picture on the iPad you use the iPad preset. If you use 1280x720, the iPad would need to scale horizontal down to 1024 and and scale vertical up to 768. Both re-scalings will lower displayed picture quality.

What is the source of this 1080p video? What frame rate? Are you certain it isn't 1080i? If so it will require deinterlace or inverse telecine. The iPad can only handle 30p (29.97) frame rate.

If for some other reason you wanted a 1280x720 downscale, here are the settings I use as my abc/espn/fox/pbs Handbrake preset.



Frame rate and encode quality settings are under the Video tab. Constant quality default is 20. For better quality lower this number. For smaller files increase the number.

[edDV]

Hi Guys,

I have a Ultra-Hi-Definition Video which is 435 MB and 1920x1080 Resolution Video. I wanna play it in the iPad-2 which has a Native Resolution of 1024x768. So I believe converting it will only be able to play it in iPad-2 right ?

A file created with the iPad preset will play in most other media players or on a computer.

FYI here is the tech spec for iPad video from the Apple site.

Video formats supported: H.264 video up to 1080p, 30 frames per second, High Profile level 4.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format

Most likely your 1080p source file is 16:9 aspect ratio or wider. The iPad screen aspect ratio is 4:3. 16:9 source will be scaled down to 1024x576 letterbox in a 1024x768 frame.

[augustya]

What is the source of this 1080p video?

It is a .WMV Video downloaded from a website which is originally a 435 MB size file with a 1920 x 1080 Resolution is what I have been told.

What frame rate?

Don't know that !! How do I find that out ?

Are you certain it isn't 1080i?

Yes, I would imagine so,That is what I have been told that it is a 1920 x 1080 Resolution video.

If so it will require deinterlace or inverse telecine. The iPad can only handle 30p (29.97) frame rate.

Didn't understand a word of it !! what does it mean ? can you explain me further ?

If for some other reason you wanted a 1280x720 downscale, here are the settings I use as my abc/espn/fox/pbs Handbrake preset.


[Attachment 9066 - Click to enlarge]

As far as I know if iPad-2 shoots video and playsback video shot in 720P will that also not make it play the 720P video ? How do I customise the fields in the first tab that is the picture area after I have added a customised preset just the way you have added 1280 x 720 for me all the fields in the picture area are greyed out how do I get it enabled ?

Frame rate and encode quality settings are under the Video tab. Constant quality default is 20. For better quality lower this number.


[Attachment 9067 - Click to enlarge]

So in this case where my File size is 435 MB, should I select the lowest, like 5 ?

For smaller files increase the number.

Increase like, to how much ? 29.97 ? And what do I select in Video Codec field ? and Quality field ?

[davexnet]

Open the file with Mediainfo, it will tell you all the gory details.

[edDV]

Ditto we need to see the media info

1080p WMV would probably be VC-1 video with WMA audio. Here is the media info plot for a WMV-HD demo file

General
Complete name : V:\HD test\1-wmv-hd\wmvhd\Trailers\To_The_Limit_Demo.wmv
Format : Windows Media
File size : 130 MiB
Duration : 2mn 10s
Overall bit rate mode : Constant
Overall bit rate : 8 395 Kbps
Maximum Overall bit rate : 8 417 Kbps
Encoded date : UTC 2003-11-21 03:55:07.144

Video
ID : 2
Format : VC-1
Format profile : MP@HL
Codec ID : WMV3
Codec ID/Info : Windows Media Video 9
Codec ID/Hint : WMV3
Description of the codec : Windows Media Video 9 - Professional
Duration : 2mn 10s
Bit rate mode : Constant
Bit rate : 8 000 Kbps
Width : 1 440 pixels
Height : 1 080 pixels
Display aspect ratio : 4:3
Frame rate : 23.976 fps
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.215
Stream size : 124 MiB (95%)
Language : English (US)

Audio
ID : 1
Format : WMA
Format profile : Pro
Codec ID : 162
Codec ID/Info : Windows Media Audio
Description of the codec : Windows Media Audio 9 Professional - 384 kbps, 48 kHz, 5.1 channel 24 bit 1-pass CBR
Duration : 2mn 10s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.97 MiB (5%)
Language : English (US)

I ran this file through Handbrake with the iPad preset and got a this which plays in VLC, MPCHC, WMP and Quicktime players. I don't have an iPad to test.

General
Complete name : S:\To_The_Limit_Demo-1.m4v
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 64.2 MiB
Duration : 2mn 10s
Overall bit rate : 4 140 Kbps
Encoded date : UTC 2011-10-08 19:35:10
Tagged date : UTC 2011-10-08 19:38:28
Writing application : HandBrake 0.9.5 2011010300

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2mn 9s
Bit rate mode : Variable
Bit rate : 3 976 Kbps
Width : 1 024 pixels
Height : 768 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 fps
Minimum frame rate : 11.905 fps
Maximum frame rate : 1 000.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.211
Stream size : 61.6 MiB (96%)
Writing library : x264 core 112
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=29 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2011-10-08 19:35:10
Tagged date : UTC 2011-10-08 19:38:28
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2mn 10s
Bit rate mode : Variable
Bit rate : 160 Kbps
Maximum bit rate : 185 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 2.48 MiB (4%)
Language : English
Encoded date : UTC 2011-10-08 19:35:10
Tagged date : UTC 2011-10-08 19:38:28

When I imported the 1080p WMV source file into Handbrake and selected the iPad preset, these were the resulting settings.




PS: The resulting file also plays in my Sony BX-37 (S370) Blu-Ray player which upscales it to 1080p. The original WMV-HD (VC-1/WMA) file also plays in native 1080p but without audio.

[edDV]

As far as I know if iPad-2 shoots video and playsback video shot in 720P will that also not make it play the 720P video ? How do I customise the fields in the first tab that is the picture area after I have added a customised preset just the way you have added 1280 x 720 for me all the fields in the picture area are greyed out how do I get it enabled ?

The iPad specs (posted above) say that it will play h.264 files up to 1080p with frame rates up to 30 fps.

It will play MPeg4 (specific codecs not named) 640x480 30 fps 2.5 Mbps max.

Also MJPEG up to 1280x720 30fps 35 Mbps.

There is no support for VC-1 or wmv9/10.

You will get the best picture on the iPad if you render to native 1024x768 display resolution.

[augustya]

I am using Handbrake Ver 0.9.5 and when I select a preset in it, all the fields in the picture Tab get greyed out just incase if I wanna manipulate it or use my own settings how do I get those fields enabled ?

I know how to add my own preset but I am looking out for how to manipulate the fields in the Picture Tab ?

[edDV]

I am using Handbrake Ver 0.9.5 and when I select a preset in it, all the fields in the picture Tab get greyed out just incase if I wanna manipulate it or use my own settings how do I get those fields enabled ?

My version is 0.9.5 as well.

I did the whole WMV-HD to iPad thing above and it seemed to work. Beyond that I don't know what you are trying to do. You haven't provided the mediainfo data from your source file.

In general when you open a file, Handbrake presents an automated estimate then you modify that.

I know how to add my own preset but I am looking out for how to manipulate the fields in the Picture Tab ?

Consult the user manual
https://trac.handbrake.fr/wiki/HandBrakeGuide

I mostly use Handbrake to convert DTV captures to h.264. I've created presets for most broadcast formats and aspect ratios including 480i/1080i (various deinterlace or detelecine modes), 720p (various quality levels 60p/30p) and for DVD source.

[augustya]

My version is 0.9.5 as well.

I did the whole WMV-HD to iPad thing above and it seemed to work. Beyond that I don't know what you are trying to do.

I am a little Novice in all these Can you please guide me and give ma a tutorial on how u did that. If I may pls request more help here...I absolutely have no idea besides just selecting the source file selecting the destination folder and click start Yeah seriously !!

You haven't provided the mediainfo data from your source file.

How can I find that ?

[edDV]

My version is 0.9.5 as well.

I did the whole WMV-HD to iPad thing above and it seemed to work. Beyond that I don't know what you are trying to do.

I am a little Novice in all these Can you please guide me and give ma a tutorial on how u did that. If I may pls request more help here...I absolutely have no idea besides just selecting the source file selecting the destination folder and click start Yeah seriously !!

You haven't provided the mediainfo data from your source file.

How can I find that ?

How I did what? I included the Handbrake setup screens for the iPad conversion above.

Load your file under "source", select iPad preset and then push the start button.

You can download mediainfo here
http://mediainfo.sourceforge.net/en

After it is installed, drag your file to it, then view results as text, then cut paste info here like I did above.

[augustya]

How I did what? I included the Handbrake setup screens for the iPad conversion above.

If I wanna convert it to 1280 x720 there is no preset available for that. I was talking about the first 2 screenshots that you have put not the one in which you have selected iPad as your preset, the one before that.

You can download mediainfo here
http://mediainfo.sourceforge.net/en

After it is installed, drag your file to it, then view results as text, then cut paste info here like I did above.

Ok I will do that soon...

[edDV]

1. I imported a 1920x1080 60i TS source file (from CBS)

2. I typed in 1280 width and 720 Height.

3. To get the new setting to show in "Display Size" I used the up arrow on PAR Width then the down arrow.

4. Since this file is interlace, I selected the Deinterlace Slow filter. (skip this step for 1080p)

5. Under Video tab, I made no changes. But you can play with CQ, bit rate or target size.



Resulting file spec (from Mediainfo)

General
Complete name : S:\CF - 110211 Jean Mich Cousteau -1.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 198 MiB
Duration : 8mn 55s
Overall bit rate : 3 102 Kbps
Encoded date : UTC 2011-10-09 14:04:47
Tagged date : UTC 2011-10-09 14:17:02
Writing application : HandBrake 0.9.5 2011010300

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 8mn 55s
Bit rate mode : Variable
Bit rate : 2 938 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 29.829 fps
Minimum frame rate : 0.774 fps
Maximum frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.107
Stream size : 188 MiB (95%)
Writing library : x264 core 112
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=2 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=0 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=29 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2011-10-09 14:04:47
Tagged date : UTC 2011-10-09 14:17:02
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 8mn 53s
Bit rate mode : Variable
Bit rate : 160 Kbps
Maximum bit rate : 188 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 10.2 MiB (5%)
Encoded date : UTC 2011-10-09 14:04:47
Tagged date : UTC 2011-10-09 14:17:02

[edDV]

BTW: 1280x720 is not optimal for the iPad but it should play.

The resulting 1280x720 30p file looks fairly poor at CQ RF=20. Average bit rate is 2.938 Mbps.

If you want better quality, lower the RF number to 18 or less.

[augustya]

@edDV

Thanks Mate you are being of great help here. Please Check out the attached word doc.

[augustya]

BTW: 1280x720 is not optimal for the iPad but it should play.

So What is the Optimum for iPad 1024 X 768 ?

[edDV]

BTW: 1280x720 is not optimal for the iPad but it should play.

So What is the Optimum for iPad 1024 X 768 ?

Yes. That way you just scale H&V once during encoding.

1280x720 would need H downscaling in the iPad to 1024 and V upscaling 720->768.

Every time the image is scaled, the quality drops. Upscaling is particularly damaging.

[edDV]

@edDV

Thanks Mate you are being of great help here. Please Check out the attached word doc.

Let's try this...

[augustya]

It still is a problem

[edDV]

I'm not sure. I'll look at it this evening.

Delete your 1280x720 preset and don't use presets for now.

Close Handbrake then open and re-import the file. The settings should be available.

[augustya]

I'm not sure. I'll look at it this evening.

Delete your 1280x720 preset and don't use presets for now.

Close Handbrake then open and re-import the file. The settings should be available.

Oh Yeah I know that, there is no problem with the inbuilt presets but when I create my own preset I want the felds in the picture tab to be enabled that is what I am saying. How do I do that ?

[edDV]

I'm not sure. I'll look at it this evening.

Delete your 1280x720 preset and don't use presets for now.

Close Handbrake then open and re-import the file. The settings should be available.

Oh Yeah I know that, there is no problem with the inbuilt presets but when I create my own preset I want the felds in the picture tab to be enabled that is what I am saying. How do I do that ?

If you don't use presets, you can modify at will. Maybe you need to reinstall.

[augustya]

No Buddy, Still Can't get those fields enabled whether I select a Preset or not, irrespective of that it remains disabled !! Can u show me how do get those fields in the picture tab enabled ?

[edDV]

No Buddy, Still Can't get those fields enabled whether I select a Preset or not, irrespective of that it remains disabled !! Can u show me how do get those fields in the picture tab enabled ?

Uninstall-Reinstall the software. You broke it.

[augustya]

Uninstall-Reinstall the software. You broke it.

Yo Man ! I unisntall and Reinstalled now the Fields in the Picture Tab do get enabled