[MPlayer-users] QuickTime MPEG4+AAC: Floating point exception

[Ivan Kowalenko]

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On Apr 1, 2007, at 08.53, transcoderjunkie wrote:

> hi all,
>
> does anbody else here on the list also have probelms with Quicktime  
> AAC+MPEG4 conversion to another format?
>
> transcoderjunkie schreef:
>> folsk any idea whats going wrong here?
>> trying to encode from a Quicktime file with MPEG4 video and AAC audio
>> mencoder exists at the end of the conversion with a Floating point  
>> exception and a 0 byte size outputfile is being generated
>>
>> mencoder /home/mryan/test_aac.mov -o /home/mryan/test.flv -ovc vfw  
>> -xvfwopts codec=vp6vfw.dll:compdata=test.mcf -oac mp3lame - 
>> lameopts cbr:br=96 -af lavcresample=22050 -vf  
>> yadif,scale=320:240,flip -of lavf -lavfopts  
>> i_certify_that_my_video_stream_does_not_use_b_frames
                           ^^^^^^^^^^^^^^^^^^^^
                             Superfluous filters here. Your input  
file is 320x240, so you don't need this. Also, I don't know a single  
QuickTime file out there that comes interlaced. Even Apple's High-Def  
trailers are all progressive (they jump from 720p to 1080p). Perhaps  
if you remove those two, something will happen?

>> MEncoder dev-SVN-r22825-4.1.2 (C) 2000-2006 MPlayer Team
>> CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (Family: 15, Model: 3,  
>> Stepping: 4)
>> CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
>> Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
>>
>> success: format: 0  data: 0x0 - 0xaba1cf
>> ISO: File Type Major Brand: Original QuickTime
>> Quicktime/MOV file format detected.
>> VIDEO:  [mp4v]  320x240  32bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
>> [V] filefmt:7  fourcc:0x7634706D  size:320x240  fps:25.00   
>> ftime:=0.0400
>> ===================================================================== 
>> =====
>> Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
>> AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
>> Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4  
>> Audio) decoder)
>> ===================================================================== 
>> =====
[snip]
>> ===================================================================== 
>> =====
>> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>> Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
>> ===================================================================== 
>> =====
>> MP3 audio selected.
>> VDec: vo config request - 320 x 240 (preferred colorspace: Planar  
>> YV12)
>> VDec: using Planar YV12 as output csp (no 0)
>> Opening video filter: [flip]
>> Movie-Aspect is 1.35:1 - prescaling to correct movie aspect.
>> [swscaler @ 0x8742858]SwScaler: using unscaled yuv420p -> bgr24  
>> special converter
>> Opening video filter: [expand]
>> Expand: -1 x -1, -1 ; -1, osd: 0, aspect: 0.000000, round: 1
>> Starting compression:
[snip]
>> Pos:   0.0s      1f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000  
>> [0:0]
>> Skipping frame!
>> Pos:   0.0s      2f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.004  
>> [0:0]
>> Skipping frame!
>> Pos:   0.1s      3f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.008  
>> [0:0]
>> ... etc. etc...
>> Skipping frame!
>> Pos:  69.3s   1924f ( 0%) 22.56fps Trem:   0min   0mb  A-V:0.052  
>> [564:0]
>> Flushing video frames.
>> Floating point exception

We require additional input. We need to know more about this file,  
specifically. Where did it come from, and some verbose output on  
MPlayer's part, so we can figure out what MPlayer is trying to do  
with the file. Perhaps, and this would be great, either a sample of  
the file or the file itself, so that people can try to recreate this  
on their own computer.
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