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. > > -- > 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 >
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 ? I will try it tomorrow and let you know. Thanks for you great help. I hope this is bottom posted! Matt _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
