Begin forwarded message: Date: Sat, 11 May 2002 10:50:36 +0200 From: 520076833260-0001@t-online.de (Tülay Sözbir-Seidel) To: mplayer-users@mplayerhq.hu Subject: [MPlayer-users] [BugReport] corrupt .nuv crashes mplayer 2) while recording TV with nuvrec, my mashine crashed. The recorded file of course is corrupted. However playing that file shouldn't crash mplayer. Hope that helps. If needed I can upload that corrupt file. Begin forwarded message: Date: Sat, 11 May 2002 20:06:24 +0200 From: 520076833260-0001@t-online.de (Tülay Sözbir-Seidel) To: mplayer-users@mplayerhq.hu Subject: Re: [MPlayer-users] [BugReport] corrupt .nuv crashes mplayer [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html] Hello Arpi, Thanks for your quick response. Am Saturday 11 May 2002 17:23 schrieb mplayer-users-request@mplayerhq.hu:

...

#0 0x080a7185 in lzo1x_decompress () #1 0x0809e168 in decode_nuv () #2 0x0809403e in mpcodecs_get_image () #3 0x080921b7 in decode_video () #4 0x08064bae in main () #5 0x404be7ee in __libc_start_main () from /lib/libc.so.6

Why dont you have line numbers ? Forget to compile with --enable-debug ? Or did you strip the binary ?

I don't know what went wrong. I might have missed the "=3" after "--enable-debug" or indeed accidentely stripped the binary. Here is a crash report with the line numbers. Surprisingly it now crashes reproducible at a different part of the program. I browsed a bit in the code. Looks like the corrupt .nuv contains a rtjpeg_frameheader with a packetlength of 1952653362. Which leads to memcpy that fails. Thanx again for the great player! Jörg js@art:~> gdb mpdir/main/mplayer GNU gdb 20010316 Copyright 2001 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-suse-linux"... (gdb) run -v -vo sdl "hello.nuv" Starting program: /home/js/mpdir/main/mplayer -v -vo sdl "hello.nuv" [New Thread 1024 (LWP 6995)] MPlayer CVS-020509-22:47-2.95.3 (C) 2000-2002 Arpad Gereoffy (see DOCS!) CPU vendor name: AuthenticAMD max cpuid level: 1 CPU: Advanced Micro Devices Athlon K75 Pluto,Orion (Type: 6, Stepping: 2) extended cpuid-level: 6 CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 0 SSE2: 0 Compiled for x86 CPU with features: MMX MMX2 3DNow 3DNowEx Reading /home/js/.mplayer/codecs.conf: 34 audio & 92 video codecs CommandLine: '-v' '-vo' 'sdl' 'hello.nuv' get_path('font/font.desc') -> '/home/js/.mplayer/font/font.desc' font: can't open file: /home/js/.mplayer/font/font.desc font: can't open file: /usr/local/share/mplayer/font/font.desc Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay Linux RTC init error: Permission denied Using usleep() timing get_path('input.conf') -> '/home/js/.mplayer/input.conf' Can't open input config file /home/js/.mplayer/input.conf : No such file or directory Falling back on default (hardcoded) config Setting up lirc support... NEW LIRC init was successful. Playing hello.nuv Not an URL! File size is 167936 bytes Checking for YUV4MPEG2 DEMUXER: freeing demuxer at 0x8283030 ASF_check: not ASF guid! DEMUXER: freeing demuxer at 0x8283030 Checking for NuppelVideo Detected NuppelVideo file format! ==> Found video stream: 0 ==> Found audio stream: 0 [V] filefmt:13 fourcc:0x3156554E size:352x288 fps:25.00 ftime:=0.0400 get_path('sub/') -> '/home/js/.mplayer/sub/' Detected audio codec: [pcm] drv:2 (Uncompressed PCM) Initializing audio codec... Selecting Audio Decoder: [pcm] Uncompressed PCM audio decoder dec_audio: Allocating 2048 + 65536 = 67584 bytes for output buffer AUDIO: srate=44100 chans=2 bps=2 sfmt=0x10 ratio: 176400->176400 ========================================================================== Opening Video Decoder: [nuv] NuppelVideo decoder VDec: vo config request - 352 x 288, Planar I420 [PP] Sorry, postprocessing is not available vo_debug: query(Planar I420) returned 0x437 (i=0) Movie-Aspect is undefined - no prescaling applied. video_out->init(352x288->352x288,flags=0,'MPlayer',0x30323449) VO: [sdl] 352x288 => 352x288 Planar I420 VO: Description: SDL YUV/RGB/BGR renderer (SDL v1.1.7+ only!) VO: Author: Ryan C. Gordon <icculus@lokigames.com>, Felix Buenemann <atmosfear@users.sourceforge.net> SDL: Mapping I420 to IYUV SDL: Using 0x56555949 (Planar IYUV) image format SDL: deactivating XScreensaver/DPMS SDL: X11 Resolution 1280x1024 SDL: Using driver: x11 SDL: using hardware-surface SDL: setting windowed mode Detected video codec: [nuv] drv:15 prio:0 (NuppelVideo) ========================================================================== AO: [oss] 44100Hz Stereo Signed 16-bit (Little-Endian) AO: Description: OSS/ioctl audio output AO: Author: A'rpi ao2: 44100 Hz 2 chans Signed 16-bit (Little-Endian) audio_setup: using '/dev/dsp' dsp device audio_setup: sample format: Signed 16-bit (Little-Endian) (requested: Signed 16-bit (Little-Endian)) audio_setup: using 2 channels (requested: 2) audio_setup: using 44100 Hz samplerate (requested: 44100) audio_setup: frags: 128/128 (1024 bytes/frag) free: 131072 Start playing... *** [vo] Allocating mp_image_t, 352x288x12bpp YUV planar, 152064 bytes Found RTjpeg tables (size: 512, width: 352, height: 288) A: 0.0 V:-1073744.5 A-V:1073744.500 ct: 0.000 1/ 1 0% 0% 0.0% 0 0 0% Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 1024 (LWP 6995)] 0x4051c587 in memcpy () from /lib/libc.so.6 (gdb) bt #0 0x4051c587 in memcpy () from /lib/libc.so.6 #1 0x081116a7 in ds_read_packet (ds=0x82686b8, stream=0x8277320, len=1952653374, pts=808463.938, pos=166326, flags=0) at ../libmpdemux/stream.h:141 #2 0x0811fa8c in demux_nuv_fill_buffer (demuxer=0x8283030) at demux_nuv.c:176 #3 0x081118b9 in demux_fill_buffer (demux=0x8283030, ds=0x8268658) at demuxer.c:282 #4 0x08111a8f in ds_fill_buffer (ds=0x8268658) at demuxer.c:340 #5 0x08111b24 in demux_read_data (ds=0x8268658, mem=0x8283898 "o", len=65536) at demuxer.c:358 #6 0x08091b5b in decode_audio (sh_audio=0x8268850, buf=0x8283898 "o", minlen=65536, maxlen=67584) at ad_pcm.c:66 #7 0x0808fa7e in decode_audio (sh_audio=0x8268850, buf=0x8283898 "o", minlen=65536, maxlen=67584) at dec_audio.c:130 #8 0x080648ce in main (argc=5, argv=0xbffff5d4, envp=0xbffff5ec) at mplayer.c:1473 #9 0x404be7ee in __libc_start_main () from /lib/libc.so.6 (gdb) disass $eip-32 $eip+32 Dump of assembler code from 0x4051c567 to 0x4051c5a7: 0x4051c567 <memcpy+7>: or %cl,0xd7891045(%ebx) 0x4051c56d <memcpy+13>: mov 0xc(%ebp),%esi 0x4051c570 <memcpy+16>: cmp $0x7,%eax 0x4051c573 <memcpy+19>: jbe 0x4051c590 <memcpy+48> 0x4051c575 <memcpy+21>: mov %edx,%ecx 0x4051c577 <memcpy+23>: neg %ecx 0x4051c579 <memcpy+25>: and $0x3,%ecx 0x4051c57c <memcpy+28>: sub %ecx,%eax 0x4051c57e <memcpy+30>: cld 0x4051c57f <memcpy+31>: repz movsb %ds:(%esi),%es:(%edi) 0x4051c581 <memcpy+33>: mov %eax,%ecx 0x4051c583 <memcpy+35>: shr $0x2,%ecx 0x4051c586 <memcpy+38>: cld 0x4051c587 <memcpy+39>: repz movsl %ds:(%esi),%es:(%edi) 0x4051c589 <memcpy+41>: and $0x3,%eax 0x4051c58c <memcpy+44>: lea 0x0(%esi,1),%esi 0x4051c590 <memcpy+48>: mov %eax,%ecx 0x4051c592 <memcpy+50>: cld 0x4051c593 <memcpy+51>: repz movsb %ds:(%esi),%es:(%edi) 0x4051c595 <memcpy+53>: mov %edx,%eax 0x4051c597 <memcpy+55>: pop %esi 0x4051c598 <memcpy+56>: pop %edi 0x4051c599 <memcpy+57>: mov %ebp,%esp 0x4051c59b <memcpy+59>: pop %ebp 0x4051c59c <memcpy+60>: ret 0x4051c59d <Letext>: lea 0x0(%esi),%esi 0x4051c5a0 <_wordcopy_fwd_aligned>: push %ebp 0x4051c5a1 <_wordcopy_fwd_aligned+1>: mov %esp,%ebp 0x4051c5a3 <_wordcopy_fwd_aligned+3>: push %edi 0x4051c5a4 <_wordcopy_fwd_aligned+4>: push %esi 0x4051c5a5 <_wordcopy_fwd_aligned+5>: push %ebx 0x4051c5a6 <_wordcopy_fwd_aligned+6>: call 0x4051c5ab <_wordcopy_fwd_aligned+11> End of assembler dump. _______________________________________________ RTFM!!! http://www.MPlayerHQ.hu/DOCS Search: http://www.MPlayerHQ.hu/cgi-bin/htsearch http://mplayerhq.hu/mailman/listinfo/mplayer-users -- Israel, where the first genocide of this century takes place.