rc3 - yuvscaler crash with -M BICUBIC

Hi this bug is not specific to rc3 (same behavior for rc2, I didn't  
test earlier versions)

seems to occurs with -M BICUBIC and too many input pixels
command line:

ffmpeg -v 0 -i ~/SANY0003.MP4 -aspect 16:9 -r 25:1 -s 1920x1080 -f  
yuv4mpegpipe - | yuvscaler -v 0 -M BICUBIC -O SIZE_720x576

verbose:
    INFO: [yuvscaler] yuvscaler 1.9.0 (15-02-2004) is a general  
scaling utility for yuv frames
    INFO: [yuvscaler] (C) 2001-2004 Xavier Biquard <[email protected]>,  
yuvscaler -h for help, or man yuvscaler
FFmpeg version SVN-r11164, Copyright (c) 2000-2007 Fabrice Bellard, et  
al.
   configuration: --enable-pp --enable-gpl --enable-pthreads --enable- 
static --disable-shared --enable-gray --enable-libx264 --enable- 
libmp3lame --enable-libgsm --enable-libfaac --enable-libfaad --enable- 
libamr-nb --enable-libamr-wb --enable-swscaler
   libavutil version: 49.5.0
   libavcodec version: 51.48.0
   libavformat version: 52.1.0
   built on Dec  5 2007 00:31:07, gcc: 4.0.1 (Apple Computer, Inc.  
build 5370)
Stream mapping:
   Stream #0.0 -> #0.0
Press [q] to stop encoding
[h264 @ 0x5c8790]AVC: Consumed only 90302 bytes instead of 90315
[h264 @ 0x5c8790]AVC: nal size 0
[h264 @ 0x5c8790]AVC: Consumed only 148426 bytes instead of 148436
[h264 @ 0x5c8790]AVC: nal size 0
    INFO: [yuvscaler] input:   frame size:  1920x1080 pixels (3110400  
bytes)
    INFO: [yuvscaler] input:       chroma:  4:2:0 MPEG-2 (horiz.  
cositing)
    INFO: [yuvscaler] input:   frame rate:  25/1 fps (~25.000000)
    INFO: [yuvscaler] input:    interlace:  bottom-field-first
    INFO: [yuvscaler] input: sample aspect ratio:  1:1
    INFO: [yuvscaler] from 1920x1080, take 1920x1080+0+0,  
INTERLACED_BOTTOM_FIRST
    INFO: [yuvscaler] scale to 720x576, 720x576 being displayed
    INFO: [yuvscaler] Scaling uses the BICUBIC algorithm,
    INFO: [yuvscaler] frame rate: 25.000 fps
    INFO: [yuvscaler] Scaling ratio for width is 8 to 3
    INFO: [yuvscaler] and is 15 to 8 for height
    INFO: [yuvscaler] MMX accelerated treatment activated
YUV4MPEG2 W720 H576 F25:1 Ib A64:45 C420mpeg2 XYSCSS=420MPEG2
    INFO: [yuvscaler] output:   frame size:  720x576 pixels (622080  
bytes)
    INFO: [yuvscaler] output:       chroma:  4:2:0 MPEG-2 (horiz.  
cositing)
    INFO: [yuvscaler] output:   frame rate:  25/1 fps (~25.000000)
    INFO: [yuvscaler] output:    interlace:  bottom-field-first
    INFO: [yuvscaler] output: sample aspect ratio:  64:45
    INFO: [yuvscaler] Frame number 0
FRAME
[h264 @ 0x5c8790]AVC: Consumed only 11410 bytes instead of 11420
[h264 @ 0x5c8790]AVC: nal size 0
[h264 @ 0x5c8790]AVC: Consumed only 58093 bytes instead of 58108
[h264 @ 0x5c8790]AVC: nal size 0
Segmentation fault

if I reduce size of input (before pipe to yuvscaler) => succes

I made some maths (with different sizes):
1920*1080 = 2073600 px => failure :-(
1590*1080 = 1717200 px	:-(
1674*1028 = 1720872 px	:-(

1580*1080 = 1706400 px => succes :-)
1674*1026 = 1717524 px	:-)
1678*1024 = 1718272 px	:-)

----------------------------------------

The crash log:

Process:         yuvscaler [38691]
Path:            /tmp/MC/MC.app/Contents/Resources/tools/yuvscaler
Identifier:      yuvscaler
Version:         ??? (???)
Code Type:       X86 (Native)
Parent Process:  bash [38681]

Date/Time:       2007-12-06 15:14:06.369 +0100
OS Version:      Mac OS X 10.5.1 (9B18)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000703000
Crashed Thread:  0

Thread 0 Crashed:
0   yuvscaler                     	0x0000976c cubic_scale_interlaced +  
703 (yuvscaler_bicubic.c:513)
1   yuvscaler                     	0x000046d1 main + 3193 (yuvscaler.c: 
1920)
2   yuvscaler                     	0x00001d3e _start + 216
3   yuvscaler                     	0x00001c65 start + 41

Thread 0 crashed with X86 Thread State (32-bit):
   eax: 0x00000000  ebx: 0x063b9e3f  ecx: 0x00000007  edx: 0x000013b0
   edi: 0x008013f2  esi: 0x006fe140  ebp: 0xbffff4e8  esp: 0xbffff3d4
    ss: 0x0000001f  efl: 0x00010212  eip: 0x0000976c   cs: 0x00000017
    ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
   cr2: 0x00703000

Binary Images:
     0x1000 -     0xffe7 +yuvscaler ??? (???) /tmp/MC/MC.app/Contents/ 
Resources/tools/yuvscaler
0x8fe00000 - 0x8fe2d883  dyld 95.3 (???)  
<81592e798780564b5d46b988f7ee1a6a> /usr/lib/dyld
0x91f5d000 - 0x920b7fe3  libSystem.B.dylib ??? (???)  
<8ecc83dc0399be3946f7a46e88cf4bbb> /usr/lib/libSystem.B.dylib
0x96877000 - 0x96878fef  libmathCommon.A.dylib ??? (???) /usr/lib/ 
system/libmathCommon.A.dylib
0xffff0000 - 0xffff1780  libSystem.B.dylib ??? (???) /usr/lib/ 
libSystem.B.dylib



----------------------------------------

PS: if I remove -M BICUBIC, yuvscaler doesn't crash
ffmpeg -v 0 -i ~/SANY0003.MP4 -aspect 16:9 -r 25:1 -s 1920x1080 -f  
yuv4mpegpipe - | yuvscaler -v 0 -O SIZE_720x576
=> success

----------------------------------------

if you need more infos...
(sorry for my english)
bye

Hervé

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