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Windows 7: Trying to figure out x264 CLI switches


25 May 2009   #1

Windows 7 Ultimate (64 bit) dual boot with Fedora KDE
 
 
Trying to figure out x264 CLI switches

Hi!

I know this is not the correct place to post, but am in a hurry, so I wanted to post at my favourite forum first!

I have an mkv file and it is encoded with x264. Here's selective output of the MediaInfo output:

Code:
Writing library                  : x264 core 65 r1029M cb3c213
Encoding settings                : cabac=1 / ref=8 / deblock=1:1:1 / 

analyse=0x3:0x113 / me=umh / subme=6 / psy_rd=0.6:0.0 / mixed_ref=1 / me_range=16 / 

chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / 

threads=3 / nr=0 / decimate=1 / mbaff=0 / bframes=16 / b_pyramid=1 / b_adapt=1 / 

b_bias=0 / direct=3 / wpredb=0 / keyint=250 / keyint_min=25 / scenecut=40(pre) / 

rc=2pass / bitrate=268 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / 

cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=0
Now, I want to transcode one of my files to MP4 with the same settings as that used for the mkv.

Can I do that? If so, how? And that too just using the encoding settings I got from MediaInfo?

My x264 encoder is newer compared to that used for the mkv:
x264 core:67 r1153M 7b6ce6a

I tried to go through my version's command line (--longhelp) and see what corresponds to what and here's what I could manage:

Code:
CABAC = 1

Number of reference frames [ref] = 8

Loop filter AlphaC0 and Beta parameters [deblock] = 1:1:1

 ?? [analyse] = 0x3:0x113 possibly Partitions to consider (--partitions)

Integer pixel motion estimation method [me] = uneven multi-hexagon search [umh]

Subpixel motion estimation and mode decision [subme] = 6

Strength of psychovisual optimization [psy_rd] = 0.6:0.0

Decide references on a per partition basis [mixed_ref] = 1

Maximum motion vector search range [me_range] = 16

Trellis RD quantization. Requires CABAC. [trellis] = 2

Adaptive spatial transform size [8x8dct] = 1

Preset quant matrices [cqm] = 0

Set the size of the inter,intra luma quantization deadzone [deadzone] = 21,11

QP difference between chroma and luma [chroma_qp_offset] = 2

Parallel encoding [threads] = 3

Noise reduction [nr] = 0

 ?? [decimate] = 1 possibly Enables coefficient thresholding on P-frames (--no-dct-

decimate)

 ?? [mbaff] = 0 possibly Enable pure-interlaced mode

Number of B-frames between I and P [bframes] = 16

Keep some B-frames as references [b_pyramid] = 1

Adaptive B-frame decision method [b_adapt] = 1

Influences how often B-frames are used [b_bias] = 0

Direct MV prediction mode [direct] = 3

Weighted prediction for B-frames [wpredb] = 0

Maximum GOP size [keyint] = 250

Minimum GOP size [keyint_min] = 25

How aggressively to insert extra I-frames [scenecut] = 40 (pre)

Enable multipass ratecontrol [rc] = 2pass

Set bitrate (kbit/s) [bitrate] = 268

Allowed variance of average bitrate [ratetol] = 1.0

QP curve compression: 0.0 => CBR, 1.0 => CQP [qcomp] = 0.60

Set min QP [qpmin] = 10

Set max QP [qpmax] = 51

Set max QP step [qpstep] = 4

Reduce fluctuations in QP (before curve compression) [cplxblur] = 20.0

Reduce fluctuations in QP (after curve compression) [qblur] = 0.5

QP factor between I and P [ip_ratio] = 1.40

QP factor between P and B [pb_ratio] = 1.30

AQ method [aq] = 0
I hope I have "mapped" the correct settings from old version to new?!

Also, if possible, help me out with a few that I couldn't figure out!

I am going to use meGUI 0.3.1.1037 to encode my file.

Thanks for your time, and your patience with my long post!

My System SpecsSystem Spec
.

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 Trying to figure out x264 CLI switches




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