High quality x264 Output Plugin for Premiere Pro

High quality x264 Output Plugin for Premiere Pro

TMPGEnc Movie Plug-in AVC for Premiere Pro is a rander plugin released by Pegasys Inc. it support H.264/MPEG-4 AVC (“H.264/AVC”) codec, which can provide very high quality video file.

The TMPGEnc Plug-in use x264 as its encoder. So it has a very high encode quality and speed. It has some most useful preset, which can be easy used. It also has almost all of the advance features of x264: CRF mode, b-pyramid, b-frames number in GOP, mbtree, macroblock type settings, psychovisual optimization, Sub-Pixel Motion Estimation Mode etc. We can easily and can also professional use this powerful plug-in.

Changes to Workflow

This plug-in changed my workflow: in the past, I had to create High-bitrate exchange format for my project, which not suitable for transport in the Internet. Through AVC has good balance between quality and file size, the codec provide by Adobe Media Encoder still not so good in Internet Steams. So some people try to use some proxy rander to solve this problem. For example: Frameserver+AVS+MeGUI(also use x264).

This company also builded a product named TMPGEnc, which can work with Frameserver, through this way, people can indirectly export the AVC video file. Now, we can directly Export our AVC codec through this plugin.  It improves workflow and efficiency.

The main panel

It provide some standard preset such as BD standard.

under the “Standard” perset, every parameter of x264 can be modified, we can find them from the official Doc.

This main panel also have the settings for target birtare, encode mode, encode speed, Quantification. Other settings are in the “Advanced” Menu, We can change them just like using CLI, you can try anyting you  want.

Some Comparison

I want to replace the default encoder with the plug-in in AME, so I make some comparison between those encoders.

I chose 2 piece of video clip from Spirited Away and Guardians of the Galaxy Blue-ray disk. which can represent 2 different types of movie. I cut 2 minutes out to make the test. For x264, crf is the most important rate control mode. so I used this mode to finishing encoding test. I used preset Slower, max bitrate 30M as standard. the other group was AME h264 and x264 core 136.exe.

The export file have the similar bitrate, I recorded its encode time and made some screenshot.

TMPGEnc use the x264 core 136, so It take me some time to build a x264 136 version from VideoLAN sourcecode.

Group1: Spirited Away Bitrate:3Mbps

Group2: Guardians of the Galaxy Bitrate:5Mbps

We can see the different encode speed of these codec. x264 core 136 takes almost the same time of TMPGEnc plug-in in Slower preset, AME is very fast. but when I chose Highspeed preset for plugin, it takes less encode time than AME. Let’s look at the image quality of these encoder.

click to open to see the full-size one








We can easily find the Block in AME file, It has also a heavy ringing/Haloing near to its edges, so in such bitrate the AME codec seems terrible.

At this time, plugin (highspeed mod)has a not bad performance, and the slower mode was even better. I think it is worth to use such slower preset to get a better result.

It was really a useful tools that can easily improve our video quality and also support the latest adobe cc version, so it will be a good choice for us.


  • this post do not provide any download
  • the video source was come from internet
  • the sourcecode of x264 is form https://github.com/mirror/x264
  • the core 148 version is kmod
  • the mediainfo used in this test was:

Writing library : x264 core 136
Encoding settings : cabac=1 / ref=4 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=1 / sliced_threads=0 / slices=1 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=30000 / vbv_bufsize=30000 / crf_max=51.0 / nal_hrd=vbr / ip_ratio=1.40 / aq=1:1.00

Amefs, EFS, Premiere, Video, x264
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