[PD] [GEM] gem 0.94 / pix_record / mp4 / x264 H264 codec not working

Jaime Oliver jaime.oliver2 at gmail.com
Sun Nov 17 05:41:24 CET 2019

Hi all,

I have a computer running ubuntu 18.04, gem 0.94 and pd 0.52-2.

I am trying to export a video in mp4 container with the h264 codec. the
codeclist message lists it as codec 0:

print: codec 0 x264 H.264 (MPEG4 AVC) encoder

However, when I send the message "codec 0" I get:

[pix_record]: invalid codec# 0 (0..35)

also if I record a video with no codec message (assuming the default codec
is 0) I get the printout in the terminal where i opened pd, as printed at
the end of this email** and I can see a noticeable loss of quality in the
recorded video.

Can anyone point to me to what the problem might be and might anyone
recommend a high quality (or lossless?) codec for HD videos?

All the best,


[x264] Warning: Unrecognized parameter x264_i_weighted_pred
[x264] Warning: Unrecognized parameter x264_b_fast_pskip
[x264] Warning: Unrecognized parameter x264_b_dct_decimate
[x264] Info: using SAR=1/1
[x264] Info: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3
[x264] Info: profile Main, level 4.0
[x264] Info: frame I:1     Avg QP:10.30  size:  2908
[x264] Info: frame P:240   Avg QP:13.51  size:   536
[x264] Info: mb I  I16..4: 99.2%  0.0%  0.8%
[x264] Info: mb P  I16..4:  0.5%  0.0%  0.0%  P16..4:  0.3%  0.2%  0.0%
 0.0%  0.0%    skip:99.0%
[x264] Info: coded y,uvDC,uvAC intra: 1.1% 3.2% 2.0% inter: 0.1% 0.2% 0.2%
[x264] Info: i16 v,h,dc,p: 63% 37%  1%  0%
[x264] Info: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 10% 47%  1%  0%  2%  0%  2%
[x264] Info: i8c dc,h,v,p: 58% 36%  6%  0%
[x264] Info: Weighted P-Frames: Y:0.0% UV:0.0%
[x264] Info: kb/s:0.00
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20191116/e03d068c/attachment.html>

More information about the Pd-list mailing list