Bug 482906 – media-video/transcode-1.1.7-r1 segfault at end of pass1 encoding ffmpeg mpeg4

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Maik 2013-08-29 12:11:39 UTC]

Using transcode to do 2-pass mpeg4 encoding using ffmpeg encoder like this (example for first pass):
transcode -i infile -w 1000,50 -F mpeg4 -b 128,0,2 -f 25.000 --export_par 142,100 -R 1 -y ffmpeg,null -o out.avi
results in segfault (free: invalid pointer)
this led me to an old ffmpeg bug:
http://thread.gmane.org/20080713163609.GB10019@geppetto

So the solution to this is to change the file export/export_ffmpeg.c, line 854 instead
lavc_venc_context->rc_eq = lavc_param_rc_eq;
it should read 
lavc_venc_context->rc_eq = av_strdup(lavc_param_rc_eq);
Works for me.

Regards.

[Comment 1 Alexis Ballier 2013-08-29 16:17:09 UTC]

did you try -r3 ?

[Comment 2 Maik 2013-08-29 17:40:24 UTC]

Tried -r3 now. ffmpeg2.patch resolves the issue. So nevermind, sorry.