Reinhard Tartler wrote:
this is a good indication that this bug is also present in current
trunk, i.e., this bug needs to be confirmed and upstreamed.
Compiling ffmpeg fresh for current svn also has the same problem.
Just a try: please disable your /usr/lib/i686/cmov/ directory (e.g.,
by renaming). If this causes the symptom to disappear, then the
defect is in the hand written assembler in i386/dsputil_mmx.c
renaming the directory has not changed the result:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xf73776c0 (LWP 19789)]
0xf79c77b0 in get_pixels_mmx (block=0x85fdbf0, pixels=0x0, line_size=336)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/i386/dsputil_mmx.c:225
225
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/i386/dsputil_mmx.c:
No such file or directory.
in
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/i386/dsputil_mmx.c
(gdb) bt
#0 0xf79c77b0 in get_pixels_mmx (block=0x85fdbf0, pixels=0x0,
line_size=336)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/i386/dsputil_mmx.c:225
#1 0xf7a812fc in encode_thread (c=0x8607ba0, arg=0x86031a0)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/mpegvideo_enc.c:1537
#2 0xf79bfd6e in avcodec_default_execute (c=0x8607ba0, func=0xf7a7ac60
<encode_thread>, arg=0x860326c, ret=0x0, count=1)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/utils.c:404
#3 0xf7a6cf02 in MPV_encode_picture (avctx=0x8607ba0, buf=0xf724a020
"ÿØÿþ", buf_size=1228800, data=0xffc15e5c)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/mpegvideo_enc.c:2921
#4 0xf79c14b0 in avcodec_encode_video (avctx=0x8607ba0, buf=0xf724a020
"ÿØÿþ", buf_size=1228800, pict=0xffc15e5c)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/libavcodec/utils.c:917
#5 0x0804d412 in output_packet (ist=0x86030f0, ist_index=0,
ost_table=0x8607930, nb_ostreams=1, pkt=0xffc16f98)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/ffmpeg.c:837
#6 0x08051b68 in av_encode (output_files=0x805a440, nb_output_files=1,
input_files=0x805a340, nb_input_files=1,
stream_maps=0x805a4a0, nb_stream_maps=0)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/ffmpeg.c:1989
#7 0x08052175 in main (argc=Cannot access memory at address 0x2a0
)
at
/build/siretart-ffmpeg-debian_0.svn20080206-18-i386-ZyxKlX/ffmpeg-debian-0.svn20080206-18/ffmpeg.c:3939
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