Home > General > Cabac.exe


For hex and dia, the range is clamped to 4-16, with a default of 16. Higher values increase the quality of I-frames generated. The format is 'framenum frametype quantizer'. This message is repeatedly displayed every 90 seconds until the user clicks "Yes" to shutdown the computer.

It controls what x264 will do with the --stats file. Recommendation: Default [edit] nr Default: Not Set Performs fast noise reduction. Setting this option will disable it. The maximum number of sliced threads is MIN( (height+15)/16 / 4, 128 ) Recommendation: Default (off), unless you are doing some sort of realtime streaming or low latency is important. [edit] https://forums.techguy.org/threads/cabac-exe.299548/

The speed gain should be slightly less than linear until you start using more than 1 thread per 40px of vertical video, at which point the gain from additional threads sharply A less efficient version of open-GOP, normal mode doesn't work when authoring Blu-rays. Recommendation: Default See also: --keyint, --min-keyint, --no-scenecut [edit] intra-refresh Default: Off Disables IDR-frames, instead x264 uses intra coding for each macroblock in The default value is level-dependent: Level 1/1b: 64 Level 1.1-2.0: 128 Level 2.1-3.0: 256 Level 3.1+: 512 Note: if you want to manually override the mvrange, subtract 0.25 from the above

  1. Pros: (10 characters minimum)Count: 0 of 1,000 characters 4.
  2. Significantly reduces both the compression efficiency (10-20% typically) and the decoding requirements. [edit] ref Default: 3 Controls the size of the DPB (Decoded Picture Buffer).
  3. Specifies a file for ffms to write out indexing data for the input file to, which can be referred to in a future encode to remove the need to reindex the
  4. Since x264 by default limits this to 511.75 for standards compliance, this should not be changed. --subme 6 (x264) -subq 6 (FFmpeg) 1: Fastest, but extremely low quality.
  5. You should test with all decoders your streams will be played on, or (if that's impossible) wait until support is generally available.
  6. A value of 100/-100 does not guarantee every/no P-frame will be converted (use --b-adapt 0 for that).
  7. Also note that the H.264 spec limits DPB size for each level.
  8. x264 x264 is a free software library and application for encoding video streams into the H.264/MPEG-4 AVC compression format, and is released under the terms of the GNU GPL.
  9. For HEX and DIA, this is clamped to between 4 and 16, with a default of 16.
  10. It should generally be used, though it obviously has no effect with only one reference frame. --no-chroma-me (x264) none (FFmpeg) Chroma is used in the last steps of the subpixel refinement

Using macroblock tree ratecontrol overall improves the compression by keeping track of temporal propagation across frames and weighting accordingly. For the mb-tree portion of this, increasing the frame count generates better results but is also slower. Is it systematical ? Fun facts: x264 also occasionally distinguishes between two different sorts of B-frames.

hehehe, i'm only joking... It's worth noting that most of these options in most scenarios are pointless, and are usually ignored by software decoders. [edit] overscan Default: undef How to handle overscan. Note: -i_qfactor is handled a little differently than --ipratio. http://www.digital-digest.com/articles/x264_options_page5.html Only use this if you think you make better ratecontrol decisions than x264.

One of the most important settings for x264, both speed and quality-wise. --merange (x264) -me_range (FFmpeg) MErange controls the max range of the motion search. Recommendation: Default [edit] level Default: -1 (auto) Sets the level flag in the output bitstream (as defined by Annex A of the H.264 standard). Note that trellis requires CABAC. --no-fast-pskip (x264) -flags2 -fastpskip (FFmpeg) By default, x264 will skip macroblocks in P-frames that don't appear to have changed enough between two frames to justify encoding See Also: --no-deblock [edit] slices Default: 0 Sets the number of slices per frame, and forces rectangular slices. (Overridden by either --slice-max-size or --

This considerably speeds up encoding. learn this here now As well as this, IDR-frames are also I-frames, so they don't reference data from any other frame. See x264's vui.txt Recommendation: If you transcode from MPEG1 with proper subsampled 4:2:0, and don't do any color space conversion, you should set this option to 1. Recommended default: -coder 1 (CABAC enabled) --ref (x264) -refs (FFmpeg) One of H.264's most useful features is the abillity to reference frames other than the one immediately prior to

Activates rate-distortion optimization for partition decision. You can specify "infinite" to never insert non-scenecut IDR-frames. Recommendation: 'auto' [edit] no-weightb Default: Not Set H.264 allows you to 'weight' references in B-frames, which allows you to change how much each reference affects the predicted picture. The second number is the strength of Psy-Trellis (requires trellis>=1 to activate).

Setting this to 0 disables threaded lookahead, which allows lower latency at the cost of reduced performance. Recommendation: Default [edit] ssim Default: Not Set Enables SSIM calculations that are reported on completion at the cost of a small decrease in speed. As a 1pass encode doesn't know this, the number of bits required for the end is usually underestimated. Not necessarily respected.

Recommended default: -qmin 10 --qpmax (x264) -qmax (FFmpeg) Maximum quantizer. The deadzone value sets the level of fine detail that x264 will arbitrarily drop without attempting to preserve. Support features necessary for many different applications, such as television broadcast, Blu-ray low-latency video applications, and web video.

For information on what options these settings toggle, check the output of x264.exe --fullhelp. [edit] profile Default: not set Limit the profile of the output stream.

One-line summary: (10 characters minimum)Count: 0 of 55 characters 3. x264.exe --pass 2 --bitrate 2930 --stats ".stats" --ref 16 --mixed-refs --bframes 3 --b-pyramid --b-rdo --bime --weightb --filter -2,-1 --subme 7 --trellis 2 --analyse all --8x8dct --qpmin 1 --me umh --merange 32 Takes a comma-separated list of 64 integers. --cqm4i, --cqm4p, --cqm8i, --cqm8p: Set both luma and chroma quant matrices --cqm4iy, --cqm4ic, --cqm4py, --cqm4pc: Set individual quant matrices. See Also: --crf, --vbv-maxrate, --vbv-bufsize [edit] qpmin Default: 0 Defines the minimum quantizer that x264 will ever use.

This setting changes what scope AQ re-arranges bits in: 0: Do not use AQ at all. 1: Allow AQ to redistribute bits across the whole video and within frames. 2: Auto-variance The maximum allowed value is 250. Enabled on all mode decisions On Macroblock provides a good compromise between speed and efficiency. If it is less than 1, the the initial fill is: vbv-init * vbv-bufsize.

You can read more about levels and 4.1 in particular under --level. Join over 733,556 other people just like you! Useful for debugging or troubleshooting. DivX H.264... 4.

The default values for these settings cause 2 to be subtracted from the chroma-qp-offset. Very small keyint ranges can cause "incorrect" IDR-frame placement (for example, a strobing scene). Not as effective as external filters such as hqdn3d, but faster. qp mode also disables adaptive quantization, since by definition 'constant quantizer' implies no adaptive quantization.

The available presets are: none, 22, 32, 64, double, triple and euro. Have your PC fixed remotely - while you watch! $89.95 Free Security Newsletter Sign Up for Security News and Special Offers: Indications of Infection: Risk Assessment: Requires bitrate mode ratecontrol. HPel on MB then QPel 4.

It is considerably more efficient than dia and hardly any slower, and therefore makes a good choice for general-use encoding. This enables multi-threaded mv and uses the entire lookahead buffer in slicetype decisions when slicetype is threaded -- rather than just the minimum amount known to be available. It is very efficient in terms of encoding time vs. When used with mbtree, it affects the strength of mbtree. (Higher qcomp = weaker mbtree).

Higher values of scenecut increase the number of scenecuts detected. C:\Program Files\Gnucleus\Downloads\AnyDVD.v6.0.0.4.Cracked-RES.by.Warez.exeC:\Program Files\Kazaa\My Shared Folder\winampa.dll.pifC:\Program Files\StreamCast\Morpheus\My Shared Folder\winampa.dll.pifC:\Program Files\\Kazaa\My Shared Folder\winampa.dll.pifC:\Program Files\eMule\Incoming\symantec.cmdD:\Program Files\Gnucleus\Downloads\AnyDVD.v6.0.0.4.Cracked-RES.by.Warez.exeD:\Program Files\Kazaa\My Shared Folder\project.exeD:\Program Files\Kazaa\My Shared Folder\winampa.dll.pifD:\Program Files\StreamCast\Morpheus\My Shared Folder\winampa.dll.pifD:\Program Files\\Kazaa\My Shared Folder\project.exeD:\Program Files\eMule\Incoming\symantec.cmdE:\Program Files\Gnucleus\Downloads\AnyDVD.v6.0.0.4.Cracked-RES.by.Warez.exeE:\Program Files\Kazaa\My Shared Folder\screen_saver!.scrE:\Program Files\Kazaa\My Right now, you're the only user reporting such an issue, so I'm inclining to think the issue lies somewhere with your system/hardware, or x264 build. hex (x264) / hex (FFmpeg) consists of a similar strategy, except it uses a range-2 search of 6 surrounding points, thus the name.