Matthew Hallin wrote: > 2009/6/17 Baptiste Coudurier <[email protected]> > >> Hi, >> >> On 6/17/2009 9:09 AM, Matthew Hallin wrote: >>> Here is the output from gdb >>> >>> Program received signal SIGSEGV, Segmentation fault. >>> ff_set_qscale (s=0xa5113d0, qscale=<value optimized out>) >>> at libavcodec/mpegvideo.c:2356 >>> 2356 s->y_dc_scale= s->y_dc_scale_table[ qscale ]; >>> Current language: auto; currently c >>> (gdb) backtrace >>> #0 ff_set_qscale (s=0xa5113d0, qscale=<value optimized out>) >>> at libavcodec/mpegvideo.c:2356 >>> #1 0x0814a385 in encode_thread (c=0xa511020, arg=0xa5114a4) >>> at libavcodec/mpegvideo_enc.c:2060 >>> #2 0x080dbbda in avcodec_default_execute (c=0xa511020, >>> func=0x8149fd0 <encode_thread>, arg=0xa5114a4, ret=0x0, count=1, >> size=4) >>> at libavcodec/utils.c:411 >>> #3 0x081340bf in MPV_encode_picture (avctx=0xa511020, buf=0xb7b04008 "", >>> buf_size=829440, data=0xa559a90) at libavcodec/mpegvideo_enc.c:2923 >>> #4 0x080dd790 in avcodec_encode_video (avctx=0xa511020, buf=0xb7b04008 >> "", >>> buf_size=829440, pict=0xa559a90) at libavcodec/utils.c:527 >>> #5 0x0804a310 in main () at ffmpeg-test2.cpp:175 >>> >>> I tried to rebuild with --disable-optimizations with the hope that it may >>> then show me the value of qscale but it would not build. >> One file needs -O1 because of register allocation failing, you should be >> able to compile it manually, yes it's annoying. Sorry for that. >> You can add also --enable-debug=gdb3 >> >> PS: please do not top-post on this mailing list. Thanks for your >> understanding. >> > > Thanks for your reply, but I am not sure I understand. > I you saying that I need to compile a single file with -O1 option? If so > which file? mpegvideo.c ?
The one not compiling, I don't think it is mpegvideo.c but dsputil_mmx.c > I will try it tomorrow and let you know. Ok. > Thanks for you great help. > I hope this is bottom posted! Yes, it is, thanks. -- Baptiste COUDURIER GnuPG Key Id: 0x5C1ABAAA Key fingerprint 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA FFmpeg maintainer http://www.ffmpeg.org _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
