I have tried to encode HD home video 1920x1080. But no matter what settings I encode at the footage judders when played on an HD tv especially on fast motion or pan shots.
How come Bluray and HD tv programmes show ok but home videos judder? What am I doing wrong in the encoding process?
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Equipment Info? Settings Info? We can't just guess...
Scott -
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THe original video was shot in 50i PAL i believe. It was edited in AP CS4 and exported in H264 as well as other options. Details below. There is no judder if the footage is played on a pc moniter, only on tv. I should mention that if I play the original footage from the camcorder connected tv via HDMI there is no judder. By judder I mean the frames jump when there is a pan shot or sharp fast motion in teh footage.
Before:
ID : 0 (0x0)
Complete name : D:\00006.MTS
Format : BDAV
Format/Info : Blu-ray Video
File size : 18.4 MiB
Duration : 9s 810ms
Overall bit rate mode : Variable
Overall bit rate : 15.7 Mbps
Maximum Overall bit rate : 18.0 Mbps
Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Format settings, GOP : M=3, N=12
Codec ID : 27
Duration : 9s 520ms
Bit rate mode : Variable
Bit rate : 14.8 Mbps
Maximum bit rate : 16.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.286
Stream size : 16.8 MiB (92%)
Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 9s 600ms
Bit rate mode : Constant
Bit rate : 256 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -80ms
Stream size : 300 KiB (2%)
--------
After:
Complete name : C:\h2641920P.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 1.09 GiB
Duration : 4mn 51s
Overall bit rate mode : Variable
Overall bit rate : 32.2 Mbps
Encoded date : UTC 2011-11-24 11:14:18
Tagged date : UTC 2011-11-24 11:14:18
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4.2
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 4mn 51s
Bit rate mode : Variable
Bit rate : 32.0 Mbps
Maximum bit rate : 40.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.617
Stream size : 1.09 GiB (99%)
Language : English
Encoded date : UTC 2011-11-24 11:14:18
Tagged date : UTC 2011-11-24 11:14:18
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 4mn 51s
Bit rate mode : Variable
Bit rate : 157 Kbps
Maximum bit rate : 254 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 5.48 MiB (0%)
Language : English
Encoded date : UTC 2011-11-24 11:14:18
Tagged date : UTC 2011-11-24 11:14:18
Material_Duration : 291883
Material_StreamSize : 5741880 -
Your video was converted from 25i* to 25p. It has lost half it's motion resolution. That's what makes it jerky/flickery. If you have a 60 Hz computer monitor try playing the video in this post:
https://forum.videohelp.com/threads/307004-Best-framerate-conversion-%28eg-23-97-to-30-...=1#post1888926
The bottom row is 60 fps, the middle row 30 fps (with each frame repeated twice), the top row 24 fps (with frames repeated 2 or 3 times). Even on a 50 (or other) Hz monitor you'll see the difference between the bottom two rows. View it full screen for maximum effect.
* Note that marketing started calling 25i "50i" to make it sound better. But it's 25 frames per second, with each frame containing two fields, intended to be viewed separately and sequentially. -
I agree with jagabo, and depending upon how you did the deinterlace, it could have made things worse. Why deinterlace at all? Your progressive monitor (via your player software) AND your TV know how to correctly deal with interlaced material.
Scott -
That might explain it. I am going to try whol process in interlace mode and report back tomorrow.
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Bang on. I changed my process and output in interlace mode all the way. The resultant file is slightly sharper and without judder on the TV. Thanks guys.
Howevcer, I have hit a brick wall here. The reason I was editing in progressive was that I have to take a few files and put them through DeShaker to get rid of acute stability problems. However, CS4 out and working in DeShaker in Virtualdub are not compatible. Only option is to output the relevant file in mpeg2 deshake in virtualdub But then virtualdub does not have an mpeg2 output nor does it allow this file to be output in avch/h264 etc. -
You can use interlaced mode in deshaker (but it's not as good as progressive)
Or you can double rate deinterlace to 1080p60, using a lossless intermediate (e.g. lagarith, huffyuv, ut video codec) for input into deshaker
vdub can be used as a frameserver into mpeg2 encoders like hcenc or any encoder that accepts vdub frameserver , or you can use lossless intermediates. Also, vdub can export h.264 with x264vfw directly, or you can use the vdub external encoder feature
When you use deshaker depends on the project particulars. For example, If you only have a few clips to stablilize, you might use it first before editing in premiere. The thinking is you don't want to waste stabilizing processing time on sections you are going to edited out anyway -
I think I found the flaw in the process. It looks like CS4.
If I take the origional mpeg2 interlaced footage and convert it to, say mkv or mpeg2, in tmpgenc then the footage plays ok on tv. However, if I take the original footage into CS4 and output immediately without any editingm into mepog2 or H264 or any other format (interlaced, upper field) the resulting clip does not play well on tv - it judders on fast scenes.
So its got to be the way CS4 is handling the footage or exporting it. Any ideas?
Info on footage converted in tmpgenc, no judder:
Complete name : D:\ABC.mkv
Format : Matroska
Format version : Version 2
File size : 46.7 MiB
Duration : 1mn 44s
Overall bit rate : 3 730 Kbps
Encoded date : UTC 2011-11-26 22:44:21
Writing application : TMPGEnc
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1mn 45s
Bit rate mode : Constant
Nominal bit rate : 4 000 Kbps / 4 000 Kbps
Width : 1 440 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Bits/(Pixel*Frame) : 0.103
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=2 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / slices=1 / nr=0 / decimate=1 / interlaced=tff / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=0 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=cbr / mbtree=1 / bitrate=4000 / ratetol=1.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / vbv_maxrate=4000 / vbv_bufsize=3997 / nal_hrd=cbr / frame-packing=0 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No
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 : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 1mn 44s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Default : Yes
Forced : No
-----------------
Info on export from CS4, judders on tv:
Complete name : D:\fromorigm2.mpg
Format : MPEG-PS
File size : 111 MiB
Duration : 48s 336ms
Overall bit rate mode : Variable
Overall bit rate : 19.2 Mbps
Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : M=3, N=12
Duration : 48s 200ms
Bit rate mode : Variable
Bit rate : 18.4 Mbps
Maximum bit rate : 18.5 Mbps
Width : 1 440 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.474
Stream size : 106 MiB (96%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 192 (0xC0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Duration : 48s 336ms
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : -80ms
Stream size : 2.21 MiB (2%) -
Some programs don't handle AVC with MBAFF properly. But that would only explain problems with the AVC intermediates. And the problems are picture corruption, not shaky video. Post a small sample of the video with the problem so we can analyze it.
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This is drving me crazy! I have foloowed the whole process through and nailed it down to Virtualdub/DeShaker. It appears that the VD/DeShaker are producing the faulty video. Its onlyt happening on 1440x1080 25i video. If I put 1920x1080 25i video through it everything is fine.
Here is the resulting VD/DeShaker video (I cant see any referemce to it being interlaced although input video was interlaced is it vecause it is raw avi?):
Complete name : D:\1440DS.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 8.43 GiB
Duration : 57s 720ms
Overall bit rate : 1 255 Mbps
Writing library : VirtualDub build 32842/release
Video
ID : 0
Format : RGB
Codec ID : 0x00000000
Codec ID/Info : Basic Windows bitmap format. 1, 4 and 8 bpp versions are palettised. 16, 24 and 32bpp contain raw RGB samples
Duration : 57s 720ms
Bit rate : 1 253 Mbps
Width : 1 920 pixels
Height : 1 088 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Bit depth : 8 bits
Bits/(Pixel*Frame) : 24.000
Stream size : 8.42 GiB (100%)
Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 57s 707ms
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 10.6 MiB (0%)
Interleave, duration : 40 ms (1.01 video frame)
Interleave, preload duration : 500 ms -
did you set the aspect ratio correctly in deshaker for those runs ?
There is a HDV 1440x1080 (1.33) setting . You wouldn't use square pixel (1.0) for those videos
Also, why does it report 1920x1088 , when your input video is 1440x1080 ? Did you post the wrong report or mixup the videos ?
Width : 1 920 pixels
Height : 1 088 pixels
Also , how are you loading the videos into vdub? If you don't force yuy2, you will get chroma sampling errors as it does it's interlaced conversion to RGB for filtering -
Sorry I posted wrong info. Here is the correct info for video out of VD/DS:
Complete name : D:\1440DS.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 8.43 GiB
Duration : 57s 720ms
Overall bit rate : 1 255 Mbps
Writing library : VirtualDub build 32842/release
Video
ID : 0
Format : RGB
Codec ID : 0x00000000
Codec ID/Info : Basic Windows bitmap format. 1, 4 and 8 bpp versions are palettised. 16, 24 and 32bpp contain raw RGB samples
Duration : 57s 720ms
Bit rate : 1 253 Mbps
Width : 1 920 pixels
Height : 1 088 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Bit depth : 8 bits
Bits/(Pixel*Frame) : 24.000
Stream size : 8.42 GiB (100%)
Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 57s 707ms
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 10.6 MiB (0%)
Interleave, duration : 40 ms (1.01 video frame)
Interleave, preload duration : 500 ms -
After saving from VirtualDub you have an uncompressed RGB AVI file -- that doesn't support the interlaced flag. The editor you are using later is not realizing that video is interlaced. Just tell the editor the video is interlaced and the correct field order after you import it. In most editors you right click on the clip in the time line and set the properties from that menu.
Last edited by jagabo; 28th Nov 2011 at 17:59.
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Use the crop function to crop 8 lines off the bottom. Cropping can be attached to any filter. It takes place before the filter. The button is on the main Filters... dialog. If you're not using any filters add the Null Transform (do nothing) filter and attach cropping to it.
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The eight extra lines wouldn't cause juddering. But it might result in a fuzzier picture or comb artifacts because the editor has to downsize to 1920x1080.
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How are you getting 1920x1088 out of 1440x1080 source? That suggests there might be some other things going on...
If you provide the information and samples requested it would help .... -
Last edited by jagabo; 29th Nov 2011 at 11:13.
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yes internally many codec pad internally 1080 to 1088, but display 1080, but how do you get 1920 out of 1440 ? The source is 1440 width, 4:3 PAR. Vdub uses square pixels. 1440x1080 in should be 1440x1080 out. I'm just saying there seems to be a lot going on left out of the discussion. He seems reluctant to provide information.
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Apoligies, I have got some of the info mixed up but the problem is still there. I will attempt to explain the workflow and list the video info below:
I have an original video in mpeg2 called orig.mpeg in 1440x1080 25i. THis does not load into virtauldub- says 'no video stream'. Anyway its wildyly unstable so I wanted out to edit out those wild scenes. So I take this clip into PP and edit it and output as m2.mpeg 1440x1080 25i. Then I take this clip and put it through virtualdub and deshaker and work as 1440 1.333 and output as m2-DS.avi 1440 25i avi file using lagraith codec (although I have used raw as well). Now if I review m2.mpg there is a slight juddering, but hardly noticeable on tv. But when I review m2-DS on tv (though I have to convert to mpeg2/mp4 due to space problems) on tv there is substantial judder on pan and fast shots.
The tv is a LG 47WT550T - a LED tv.
----orig file----
ID : 255 (0xFF)
Complete name : D:\orig.mpeg
Format : MPEG-TS
Format_Commercial_IfAny : HDV 1080i
File size : 10.3 GiB
Duration : 56mn 18s
Start time : UTC 2011-09-18 11:34:10
End time : UTC 2011-09-18 15:09:07
Overall bit rate : 26.1 Mbps
Maximum Overall bit rate : 33.0 Mbps
Encoded date : UTC 2011-09-18 11:34:10
Video
ID : 2064 (0x810)
Menu ID : 100 (0x64)
Format : MPEG Video
Format_Commercial_IfAny : HDV 1080i
Format version : Version 2
Format profile : Main@High 1440
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : M=3, N=12
Codec ID : 2
Duration : 56mn 18s
Bit rate : 24.4 Mbps
Maximum bit rate : 25.0 Mbps
Width : 1 440 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.629
Stream size : 9.62 GiB (94%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2068 (0x814)
Menu ID : 100 (0x64)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : 3
Duration : 56mn 18s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 155 MiB (1%)
---m2.mpeg------
Complete name : D:\m2.mpeg
Format : MPEG-PS
File size : 16.7 GiB
Duration : 29mn 25s
Overall bit rate mode : Variable
Overall bit rate : 81.3 Mbps
Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : M=3, N=12
Duration : 29mn 24s
Bit rate mode : Variable
Bit rate : 79.3 Mbps
Maximum bit rate : 80.0 Mbps
Width : 1 440 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 2.040
Stream size : 16.3 GiB (98%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 192 (0xC0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Duration : 29mn 25s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Delay relative to video : -80ms
Stream size : 80.8 MiB (0%)
----m2-DS-----------
Complete name : D:\m2-ds.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 42.9 GiB
Duration : 29mn 24s
Overall bit rate : 209 Mbps
Writing library : VirtualDub build 32842/release
Video
ID : 0
Format : Lagarith
Codec ID : LAGS
Duration : 29mn 24s
Bit rate : 207 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Bits/(Pixel*Frame) : 3.994
Stream size : 42.5 GiB (99%)
Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 29mn 24s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 323 MiB (1%)
Interleave, duration : 40 ms (1.00 video frame)
Interleave, preload duration : 500 msLast edited by akkers; 1st Dec 2011 at 11:49.
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How are you viewing m2-ds.avi on the tv ? What is playing the file? PC ?
Likely the problem is it's a lagarith file with high bitrate (not meant to be played back in realtime). You need very fast processor and disk I/O to be able to playback HD lagarith file in real time. Lagarith is meant as a lossless intermediate , not for realtime playback
But when I review m2-DS on tv (though I have to convert to mpeg2/mp4 due to space problems) on tv there is substantial judder on pan and fast shots. -
I used tmpgenc to convert to mp4 (avch) and viewed that file on tv.
Complete name : D:\m2ds.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 2.48 GiB
Duration : 29mn 24s
Overall bit rate mode : Variable
Overall bit rate : 12.1 Mbps
Writing application : TMPGEnc
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 29mn 24s
Bit rate mode : Variable
Bit rate : 11.9 Mbps
Maximum bit rate : 12.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Bits/(Pixel*Frame) : 0.230
Stream size : 2.45 GiB (99%)
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=2 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / slices=1 / nr=0 / decimate=1 / interlaced=tff / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=0 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=1.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / vbv_maxrate=12000 / vbv_bufsize=11993 / crf_max=51.0 / nal_hrd=vbr / frame-packing=0 / ip_ratio=1.40 / aq=1:1.00
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 : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 29mn 24s
Bit rate mode : Variable
Bit rate : 128 Kbps
Maximum bit rate : 576 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 26.9 MiB (1%) -
So the TV is playing the file directly?
Some TV sets don't know they should be deinterlacing MBAFF, or might not be doing it properly
Try encoding the lagarith file to MPEG2
Or if you play the tmpgenc encoded file on the PC, e.g. VLC, and activate deinterlacer (set to yadif 2x or bob), how does it play ?
If you still can't figure it out post some samples
I still don't understand how you are getting 1920x1080 out of vdub, when your input file is 1440x1080, unless you resized or some other filters are resizing, or something else is going on... -
No I previously converted to 1920 before VD. However, in this case I have kept clips at 1440 25i all the way except when converting in tmpgenc. I converted in tmpgenc to get size down to take to TV via a usb stick. [I even converted the file down to mpeg2 in dv size and authored a DVD to play on tv but that was still juddering].
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