Probably related to recent AMD64 patches... Originally discovered by a user on #mplayer wishing to remain anonymous due to pyrophobia. Wasn't able to reproduce reported image corruption, -vf scale just crashes for me on my P3. $ gdb ./mplayer GNU gdb Red Hat Linux (6.0post-0.20040223.19rh) Copyright 2004 Free Software Foundation, Inc. [jan@polaris main]$ gdb ./mplayer GNU gdb Red Hat Linux (6.0post-0.20040223.19rh) Copyright 2004 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-redhat-linux-gnu"...Using host libthread_db library "/lib/tls/libthread_db.so.1". (gdb) set args -v -vf scale=512:384 ~/overthehills.avi (gdb) run Starting program: /extra/mplayer2/main/mplayer -v -vf scale=512:384 ~/overthehills.avi [Thread debugging using libthread_db enabled] [New Thread -151139808 (LWP 12358)] Using GNU internationalization Original domain: messages Original dirname: /usr/share/locale Current domain: mplayer Current dirname: /usr/local/share/locale MPlayer dev-CVS-041021-17:02-2.95.3 (C) 2000-2004 MPlayer Team CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville (Family: 6, Stepping: 3) Detected cache-line size is 32 bytes CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0 Compiled for x86 CPU with extensions: MMX MMX2 SSE Reading config file /usr/local/etc/mplayer/mplayer.conf: No such file or directory Reading config file /home/jan/.mplayer/config Reading /home/jan/.mplayer/codecs.conf: Can't open '/home/jan/.mplayer/codecs.conf': No such file or directory Reading /usr/local/etc/mplayer/codecs.conf: Can't open '/usr/local/etc/mplayer/codecs.conf': No such file or directory Using built-in default codecs.conf. CommandLine: '-v' '-vf' 'scale=512:384' '/home/jan/overthehills.avi' init_freetype get_path('font/font.desc') -> '/home/jan/.mplayer/font/font.desc' Font /home/jan/.mplayer/font/font.desc loaded successfully! (206 chars) Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay Using Linux hardware RTC timing (1024Hz). get_path('input.conf') -> '/home/jan/.mplayer/input.conf' Parsing input config file /home/jan/.mplayer/input.conf Input config file /home/jan/.mplayer/input.conf parsed: 52 binds get_path('overthehills.avi.conf') -> '/home/jan/.mplayer/overthehills.avi.conf' Playing /home/jan/overthehills.avi. [file] File size is 19492348 bytes STREAM: [file] /home/jan/overthehills.avi STREAM: Description: File STREAM: Author: Albeu STREAM: Comment: based on the code from ??? (probably Arpi) AVI file format detected. list_end=0x146 ======= AVI Header ======= us/frame: 40000 (fps=25.000) max bytes/sec: 0 padding: 0 MainAVIHeader.dwFlags: (2320) HAS_INDEX IS_INTERLEAVED TRUST_CKTYPE frames total: 5799 initial: 0 streams: 2 Suggested BufferSize: 0 Size: 352 x 288 ========================== list_end=0xD4 ==> Found video stream: 0 ====== STREAM Header ===== Type: vids FCC: (0) Flags: 0 Priority: 0 Language: 0 InitialFrames: 0 Rate: 250000/10000 = 25.000 Start: 0 Len: 5799 Suggested BufferSize: 29788 Quality 0 Sample size: 0 ========================== found 'bih', 40 bytes of 40 ======= VIDEO Format ====== biSize 40 biWidth 352 biHeight 288 biPlanes 1 biBitCount 24 biCompression 1482049860='DIVX' biSizeImage 304128 =========================== Regenerating keyframe table for MPEG4 video list_end=0x146 ==> Found audio stream: 1 ====== STREAM Header ===== Type: auds FCC: (0) Flags: 0 Priority: 0 Language: 0 InitialFrames: 0 Rate: 44100/1152 = 38.281 Start: 0 Len: 8899 Suggested BufferSize: 835 Quality 0 Sample size: 0 ========================== found 'wf', 30 bytes of 18 ======= WAVE Format ======= Format Tag: 85 (0x55) Channels: 2 Samplerate: 44100 avg byte/sec: 14668 Block align: 1152 bits/sample: 0 cbSize: 12 mp3.wID=1 mp3.fdwFlags=0x2 mp3.nBlockSize=1152 mp3.nFramesPerBlock=1 mp3.nCodecDelay=0 =========================== list_end=0x125D754 Found movie at 0x80C - 0x125D754 Reading INDEX block, 14698 chunks for 5799 frames (fpos=0x125d75c) AVI index offset: 0x808 (movi=0x80C idx0=0x4 idx1=0x74) Auto-selected AVI audio ID = 1 Auto-selected AVI video ID = 0 AVI: Searching for audio stream (id:1) AVI video size=15716220 (5799) audio size=3409782 (8899) VIDEO: [DIVX] 352x288 24bpp 25.000 fps 542.0 kbps (66.2 kbyte/s) [V] filefmt:3 fourcc:0x58564944 size:352x288 fps:25.00 ftime:=0.0400 get_path('sub/') -> '/home/jan/.mplayer/sub/' get_path('default.sub') -> '/home/jan/.mplayer/default.sub' ========================================================================== Opening audio decoder: [mp3lib] MPEG layer-2, layer-3 dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer. mp3lib: made decode tables with MMX optimization mp3lib: using MMX optimized decore! MP3lib: init layer2&3 finished, tables done MPEG 1.0, Layer III, 44100 Hz 32 kbit Joint-Stereo, BPF: 104 Channels: 2, copyright: No, original: Yes, CRC: No, emphasis: 0 AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 4000->176400 (32.0 kbit) Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3) ========================================================================== X11 opening display: :0.0 vo: X11 color mask: FFFFFF (R:FF0000 G:FF00 B:FF) vo: X11 running at 1152x864 with depth 24 and 32 bpp (":0.0" => local display) [x11] Detected wm supports NetWM. [x11] Detected wm supports FULLSCREEN state. [x11] Detected wm supports ABOVE state. [x11] Detected wm supports BELOW state. [x11] Current fstype setting honours FULLSCREEN ABOVE BELOW X atoms xscreensaver_disable: xscreensaver wid=10485761. Detaching after fork from child process 12379. Opening video filter: [scale w=512 h=384] SwScale params: 512 x 384 (-1=no scaling) ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family INFO: libavcodec init OK! Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4) ========================================================================== Checking audio filter chain for 44100Hz/2ch/16bit -> 44100Hz/2ch/16bit... [libaf] Adding filter dummy [dummy] Was reinitialized, rate=44100Hz, nch = 2, format = 0x00000001 and bps = 2 AF_pre: af format: 2 bps, 2 ch, 44100 hz, little endian signed int AF_pre: 44100Hz 2ch Signed 16-bit (Little-Endian) ao2: 44100 Hz 2 chans Signed 16-bit (Little-Endian) audio_setup: using '/dev/dsp' dsp device audio_setup: using '/dev/mixer' mixer device audio_setup: using 'pcm' mixer 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: 8/8 (8192 bytes/frag) free: 65536 AO: [oss] 44100Hz 2ch Signed 16-bit (Little-Endian) (2 bps) AO: Description: OSS/ioctl audio output AO: Author: A'rpi Building audio filter chain for 44100Hz/2ch/16bit -> 44100Hz/2ch/16bit... [dummy] Was reinitialized, rate=44100Hz, nch = 2, format = 0x00000001 and bps = 2 [dummy] Was reinitialized, rate=44100Hz, nch = 2, format = 0x00000001 and bps = 2 Starting playback... XXX initial v_pts=0.000 a_pos=7978 (0.544) [ffmpeg] aspect_ratio: 1.222222 VDec: vo config request - 352 x 288 (preferred csp: Planar YV12) Trying filter chain: scale vo VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1.22:1 - prescaling to correct movie aspect. VO Config (352x288->352x288,flags=0,'MPlayer',0x32315659) SwScaler: reducing / aligning filtersize 5 -> 4 SwScaler: reducing / aligning filtersize 5 -> 4 SwScaler: reducing / aligning filtersize 5 -> 4 SwScaler: reducing / aligning filtersize 5 -> 4 SwScaler: BICUBIC scaler, from Planar YV12 to Planar YV12 using MMX2 SwScaler: using 4-tap MMX scaler for horizontal luminance scaling SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling SwScaler: using n-tap MMX scaler for vertical scaling (YV12 like) SwScaler: 352x288 -> 512x384 REQ: flags=0x437 req=0x0 VO: [xmga] 512x384 => 512x418 Planar YV12 VO: Description: Matrox G200/G4x0/G550 overlay in X11 window (using /dev/mga_vid) VO: Author: Zoltan Ponekker <pontscho@makacs.poliod.hu> [mga] Using 3 buffers. Using colorkey: ff00 [xmga] x: 320 y: 223 w: 512 h: 418 [xmga] dcx: 320 dcy: 223 dx: 0 dy: 0 dw: 512 dh: 418 *** [vo] Allocating mp_image_t, 512x384x12bpp YUV planar, 294912 bytes *** [scale] Allocating (slices) mp_image_t, 352x288x12bpp YUV planar, 152064 bytes [xmga] x: 5 y: 22 w: 512 h: 418 [xmga] dcx: 320 dcy: 223 dx: 0 dy: 0 dw: 512 dh: 418 *** [scale] Allocating (slices) mp_image_t, 352x288x12bpp YUV planar, 152064 bytes Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -151139808 (LWP 12358)] 0x081b31d8 in swScale_MMX2 (c=Cannot access memory at address 0xfffffc08 ) at swscale_template.c:2045 2045 asm volatile( (gdb) bt #0 0x081b31d8 in swScale_MMX2 (c=Cannot access memory at address 0xfffffc08 ) at swscale_template.c:2045 Cannot access memory at address 0xfffffc04 (gdb) disass $pc-32 $pc+32 Dump of assembler code from 0x81b31b8 to 0x81b31f8: 0x081b31b8 <swScale_MMX2+2804>: add %cl,0x27bc(%ebp) 0x081b31be <swScale_MMX2+2810>: add %al,(%eax) 0x081b31c0 <swScale_MMX2+2812>: movzww (%edx,%ebp,1),%ax 0x081b31c5 <swScale_MMX2+2817>: movzww 0x2(%edx,%ebp,1),%bx 0x081b31cb <swScale_MMX2+2823>: movq (%ecx,%ebp,4),%mm1 0x081b31cf <swScale_MMX2+2827>: movq 0x8(%ecx,%ebp,4),%mm3 0x081b31d4 <swScale_MMX2+2832>: movd (%esi,%eax,1),%mm0 0x081b31d8 <swScale_MMX2+2836>: movd (%esi,%ebx,1),%mm2 0x081b31dc <swScale_MMX2+2840>: punpcklbw %mm7,%mm0 0x081b31df <swScale_MMX2+2843>: punpcklbw %mm7,%mm2 0x081b31e2 <swScale_MMX2+2846>: pmaddwd %mm1,%mm0 0x081b31e5 <swScale_MMX2+2849>: pmaddwd %mm2,%mm3 0x081b31e8 <swScale_MMX2+2852>: psrad $0x8,%mm0 0x081b31ec <swScale_MMX2+2856>: psrad $0x8,%mm3 0x081b31f0 <swScale_MMX2+2860>: packssdw %mm3,%mm0 0x081b31f3 <swScale_MMX2+2863>: pmaddwd %mm6,%mm0 0x081b31f6 <swScale_MMX2+2866>: packssdw %mm0,%mm0 End of assembler dump. (gdb) info all-registers eax 0xffff0000 -65536 ecx 0x884f4b8 142931128 edx 0x884a4a8 142910632 ebx 0x8840000 142868480 esp 0xfeffc76c 0xfeffc76c ebp 0xfffffc00 0xfffffc00 esi 0xf6b9c040 -155598784 edi 0x884f8c8 142932168 eip 0x81b31d8 0x81b31d8 eflags 0x210203 2163203 cs 0x73 115 ss 0x7b 123 ds 0x7b 123 es 0x7b 123 fs 0x0 0 gs 0x33 51 st0 -nan(0x080808080) (raw 0xffff0000000080808080) st1 -nan(0x0fbc84438) (raw 0xffff00000000fbc84438) st2 -nan(0xfffffd68000a4979) (raw 0xfffffffffd68000a4979) st3 -nan(0xfb4124e51fda) (raw 0xffff0000fb4124e51fda) st4 -nan(0x1717171717171717) (raw 0xffff1717171717171717) st5 -nan(0x1717171717171717) (raw 0xffff1717171717171717) st6 -nan(0x2000200020002) (raw 0xffff0002000200020002) st7 <invalid float value> (raw 0xffff0000000000000000) fctrl 0x37f 895 fstat 0x120 288 ftag 0xaaaa 43690 fiseg 0x73 115 fioff 0x80fb2cc 135246540 foseg 0x7b 123 fooff 0xfeffd25c -16788900 fop 0x15d 349 xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} xmm2 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} xmm3 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} xmm4 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} xmm5 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} xmm6 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} xmm7 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xff <repeats 16 times>}, v8_int16 = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = {0xffffffffffffffff, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffffffffff} mxcsr 0x1f80 8064 mm0 {uint64 = 0x80808080, v2_int32 = {0x80808080, 0x0}, v4_int16 = {0x8080, 0x8080, 0x0, 0x0}, v8_int8 = {0x80, 0x80, 0x80, 0x80, 0x0, 0x0, 0x0, 0x0}} mm1 {uint64 = 0xfbc84438, v2_int32 = {0xfbc84438, 0x0}, v4_int16 = {0x4438, 0xfbc8, 0x0, 0x0}, v8_int8 = {0x38, 0x44, 0xc8, 0xfb, 0x0, 0x0, 0x0, 0x0}} mm2 {uint64 = 0xfffffd68000a4979, v2_int32 = {0xa4979, 0xfffffd68}, v4_int16 = {0x4979, 0xa, 0xfd68, 0xffff}, v8_int8 = {0x79, 0x49, 0xa, 0x0, 0x68, 0xfd, 0xff, 0xff}} mm3 {uint64 = 0xfb4124e51fda, v2_int32 = {0x24e51fda, 0xfb41}, v4_int16 = {0x1fda, 0x24e5, 0xfb41, 0x0}, v8_int8 = {0xda, 0x1f, 0xe5, 0x24, 0x41, 0xfb, 0x0, 0x0}} mm4 {uint64 = 0x1717171717171717, v2_int32 = {0x17171717, 0x17171717}, v4_int16 = {0x1717, 0x1717, 0x1717, 0x1717}, v8_int8 = {0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17}} mm5 {uint64 = 0x1717171717171717, v2_int32 = {0x17171717, 0x17171717}, v4_int16 = {0x1717, 0x1717, 0x1717, 0x1717}, v8_int8 = {0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17}} mm6 {uint64 = 0x2000200020002, v2_int32 = {0x20002, 0x20002}, v4_int16 = {0x2, 0x2, 0x2, 0x2}, v8_int8 = {0x2, 0x0, 0x2, 0x0, 0x2, 0x0, 0x2, 0x0}} mm7 {uint64 = 0x0, v2_int32 = {0x0, 0x0}, v4_int16 = {0x0, 0x0, 0x0, 0x0}, v8_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}} (gdb) Fedora Core 2 Linux 2.6.8 /lib/libc-2.3.3.so Reading specs from /extra/gcc295/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/specs gcc version 2.95.3 20010315 (release) GNU ld version 2.15.90.0.3 20040415 GNU assembler 2.15.90.0.3 20040415 processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 3 cpu MHz : 770.007 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1523.71