x264 encoding

[Borgen]

Hi,

I am in the process of encoding my DVD library to x264 files. Have done a few tests with different software and found the StaxRip fit my needs in the best way.

But.... I´m not so experienced with x264 encoding. Below is a MediaInfo from one of my encodes, can someone that knows more about this have a look at it and see if I am using the optimal settings or if I should changes something to get even better quality.

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Muxing mode : Container profile=Unknown@4.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 41mn
Bit rate : 2 494 Kbps
Nominal bit rate : 2 551 Kbps
Width : 720 pixels
Height : 560 pixels
Display aspect ratio : 1.870
Original display aspect ratio : 1.871
Frame rate : 25.000 fps
Resolution : 8 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.247
Stream size : 1.77 GiB (85%)
Writing library : x264 core 83 r1391 3d0f110
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=3 / sliced_threads=0 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=3 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / wpredp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=2pass / mbtree=1 / bitrate=2551 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=2:1.30

[Willem53]

putting in a MediaInfo of the source would help in determining if you should make changes... do one on the largest VOB file

[alanh]

For most of my DVD transcodes, I will upscale to 720p so bad hardware real-time scalers don't look as bad going up to 1080p. It also allows the encoder more flexibility since there are more macro blocks to work with. The final size for the same constant quality settings isn't much larger and I think it looks much better.

I'll also convert back to square pixels and reverse the 3:2 pulldown (for DVD movies) in the process.

[Borgen]

(02-08-2010 02:57 PM)Willem53 Wrote:  putting in a MediaInfo of the source would help in determining if you should make changes... do one on the largest VOB file

Ok, here is Media info both from the source and then also from my encoded file:


Source File:
Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : Yes
Format settings, Matrix : Default
Duration : 89ms
Bit rate mode : Variable
Bit rate : 5 885 Kbps
Nominal bit rate : 9 800 Kbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : PAL
Resolution : 8 bits
Colorimetry : 4:2:0
Bits/(Pixel*Frame) : 0.568
Stream size : 63.9 KiB (0%)

Audio
ID : 128 (0x80)
Format : AC-3
Format/Info : Audio Coding 3
Duration : 1h 59mn
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Surround: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 328 MiB (6%)



And the Encoded file
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Muxing mode : Container profile=Unknown@4.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 59mn
Bit rate : 2 543 Kbps
Nominal bit rate : 2 600 Kbps
Width : 720 pixels
Height : 432 pixels
Display aspect ratio : 2.40:1
Original display aspect ratio : 2.40:1
Frame rate : 25.000 fps
Resolution : 8 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.327
Stream size : 2.12 GiB (85%)
Writing library : x264 core 84 r1416 fcf70c2
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.0:1.0 / mixed_ref=1 / me_range=51 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-4 / threads=3 / sliced_threads=0 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=3 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / wpredp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=2pass / mbtree=1 / bitrate=2600 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=2:1.80

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 1h 59mn
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Surround: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 328 MiB (13%)
Title : Swedish
Language : Swedish

Text
ID : 3
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : Swedish