Check out the environment variable MALLOC_CHECK_ in ... $ export MALLOC_CHECK_=5 ; /usr/bin/melt /tmp/mandelbrot.mlt in=0 out=149 -profile /tmp/customprofile3 -consumer avformat:/tmp/melt.mkv properties=lossless/HuffYUV
MALLOC_CHECK_ controls how glibc responds to programming errors. Setting it to 5 a.) prints a simple error message and b.) continues execution. It doesn't fix the bug. But, on the plus side, it renders a watchable video. So, Kingsley -- Time is the fire in which we all burn.