[FFmpeg-devel] gprof and FFmpeg
Thu Jun 19 11:22:58 CEST 2008
Mike Melanson <mike at multimedia.cx> writes:
> I would like to profile certain portions of FFmpeg using gprof. But when
> I try to compiler FFmpeg using the --enable-gprof option, the
> compilation process dies of register exhaustion. Yeah, you know the
> error: "can't find a register in class 'GENERAL_REGS' while reloading
> 'asm'". This is with 4.1.3 and 4.3.0 on x86_32.
This is to be expected. Maybe it will compile with --disable-mmx.
> Has anyone tried using gprof with FFmpeg lately? I try using oprofile
> but I rarely have much luck getting it set up.
Oprofile is generally much more reliable than gprof. What kind of
problems are you having?
mans at mansr.com
More information about the ffmpeg-devel