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--- x264 [2017/02/05 16:32] – beandog
+++ x264 [2023/04/10 01:56] (current) – beandog
@@ Line 1: / Line 1: @@
-====== x264 ======
+====== x264 / AVC ======
   * [[Handbrake]]
@@ Line 6: / Line 6: @@
   * [[http://dev.beandog.org/x264_preset_reference.html|x264 preset reference]]
   * [[http://www.x264bluray.com/|Authoring a professional Blu-ray Disc with x264]]
-  * [[http://mewiki.project357.com/wiki/X264_Settings|x264 Settings]]
   * [[http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC|Wikipedia: H264]]
-  * [[http://www.streaminglearningcenter.com/articles/understanding-h264-encoding-parameters---profiles-and-levels.html|Understanding H.264 Encoding Parameters - Profiles and Levels]]
   * [[http://mmmash.blogspot.com/2013/03/x264-motion-estimation-method-comparison.html|X264 - Motion Estimation Method- Comparison]] - I like this one. :)
   * [[http://birds-are-nice.me/publications/extremex264_5.shtml|Extreme x264 encoding]]
+  * [[https://en.wikibooks.org/wiki/MeGUI/x264_Settings|MeGUI/x264 Settings]] - the best place to get a description of each setting
-=== h264 levels ===
+When encoding, if you want to cover all your bases, there are two H.264 settings to use, and two x264 encoding arguments to pass:
-DVDs max out at high 3.1.  You don't need 3.2 on DVDs because that is the first level that accepts 720p.
+  * H.264 profile: high
+  * H.264 level: 4.1
+  * x264 preset: medium
+  * x264 CRF: 23
-Blu-ray at high 4.1.  You can go higher if you want, it's your preference. :)
+Optionally, you can set the x264 tuning as well. Best choices are film, animation, and grain.
+Don't change any other settings than those. If you do, you're going down the rabbit hole.
+=== H.264 levels ===
+DVDs max out at high 3.1. You don't need 3.2 on DVDs because that is the first level that accepts 720p.
+Blu-ray at high 4.1. You can go higher if you want, it's your preference. :)
 The levels (baseline, main, high) are used to determine which hardware you want to target, and influences what quality you can expect and what encoding features will be used. Blu-ray uses high profile.
@@ Line 36: / Line 46: @@
 === mtune ===
-Keep it simple (for DVDs): use ''film'' or ''animation''.  For **old** movies or sources that have artifacts already, use ''grain'' or you risk making it even worse.
+Keep it simple (for DVDs): use ''film'' or ''animation''. For **old** movies or sources that have artifacts already, use ''grain'' or you risk making it even worse.
 === Choosing an x264 preset ===
@@ Line 69: / Line 79: @@
   * [[http://x264dev.multimedia.cx/archives/102|Encoding animation]] - good read for overview of challenges.
-"All of this combines to make animation at first glance deceptively easy–but in reality quite difficult–to encode."  So true!
+"All of this combines to make animation at first glance deceptively easy–but in reality quite difficult–to encode." So true!
 His tests on x264
@@ Line 91: / Line 101: @@
   * uneven multi-hexagon (umh): slow, slower, veryslow
   * exhaustive (tesa): placebo
-=== Steve's Defaults ===
-Here are examples of using H.264 high profile at level 4.1 (Blu-ray settings), with x264 CRF 23 on medium preset.
-Using MP4 as the container will encode the audio to AAC by default. If using MKV, it depends on the encoder, so I'm specifying it directly.
-<code>
-ffmpeg -i source.mpg -c:v libx264 -profile:v high -level 4.1 -crf 23 -c:a libfdk_aac video.mp4
-ffmpeg -i source.mpg -c:v libx264 -profile:v high -level 4.1 -crf 23 -c:a libfdk_aac video.mkv
-</code>
-<code>
-avconv -i source.mpg -c:v libx264 -profile:v high -level 4.1 -crf 23 -c:a libfdk_aac video.mp4
-avconv -i source.mpg -c:v libx264 -profile:v high -level 4.1 -crf 23 -c:a libfdk_aac video.mkv
-</code>

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