Hi, On Fri, Aug 26, 2011 at 2:29 AM, Farkas Levente <[email protected]> wrote: > On 08/21/2011 07:36 PM, Ronald S. Bultje wrote: >> Hi, >> >> On Sun, Aug 21, 2011 at 9:32 AM, Farkas Levente <[email protected]> wrote: >>> On 08/20/2011 10:49 PM, Ronald S. Bultje wrote: >>>> On Sat, Aug 20, 2011 at 1:48 PM, Farkas Levente <[email protected]> >>>> wrote: >>>>> hi, >>>>> when i build gstreamer-ffmpeg (which contains libav) it's always >>>>> segfault with this bt: >>>>> any tip or solution? >>>>> >>>>> Program received signal SIGSEGV, Segmentation fault. >>>>> [Switching to Thread 844.0xae8] >>>>> 0x02912a02 in clear_blocks_sse (blocks=0x23b7858) >>>>> at >>>>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcodec/x8 >>>>> 6/dsputil_mmx.c:539 >>>>> 539 >>>>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcodec/x >>>>> 86/dsputil_mmx.c: No such file or directory. >>>>> in >>>>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcode >>>>> c/x86/dsputil_mmx.c >>>>> (gdb) bt >>>>> #0 0x02912a02 in clear_blocks_sse (blocks=0x23b7858) >>>>> at >>>>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcodec/x8 >>>>> 6/dsputil_mmx.c:539 >>>> >>>> Can you provide the output of "disass", "info all-registers"? >>> >>> Dump of assembler code for function clear_blocks_sse: >>> 0x029229f0 <+0>: mov 0x4(%esp),%edx >>> 0x029229f4 <+4>: add $0x300,%edx >>> 0x029229fa <+10>: xorps %xmm0,%xmm0 >>> 0x029229fd <+13>: mov $0xfffffd00,%eax >>> => 0x02922a02 <+18>: movaps %xmm0,(%edx,%eax,1) >> [..] >>> eax 0xfffffd00 -768 >>> edx 0x23c6358 37512024 >> >> edx is not 16-byte aligned. I'm guessing the memory input is not >> allocated with proper alignment, seems like a GStreamer bug. Maybe >> they compiled Libav without --enable-memalign-hack, which is required >> for Win32 binaries? This is automatically set by Libav's configure >> script, but I don't think that GStreamer uses that. > > this's the log output of the build of the above package. and it's > include --enable-memalign-hack. so what's else can be the problem?
Does gst-ffmpeg provide it's own get_buffer implementation? Does it return 16-byte aligned buffers and strides? Ronald _______________________________________________ libav-tools mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-tools
