[MPlayer-dev-eng] x264 dimensions not set / float point exception

[Joseph Miller]

On Fri, Dec 24, 2010 at 2:37 PM, Joseph Miller <josephcmiller2 at gmail.com> wrote:
> On Fri, Dec 24, 2010 at 2:17 PM, Joseph Miller <josephcmiller2 at gmail.com> wrote:
>> On Fri, Dec 24, 2010 at 1:44 PM, compn <tempn at twmi.rr.com> wrote:
>>> On Fri, 24 Dec 2010 10:56:34 -0500, Joseph Miller wrote:
>>>>On Thu, Dec 23, 2010 at 10:12 PM, compn <tempn at twmi.rr.com> wrote:
>>>>> On Thu, 23 Dec 2010 10:38:31 -0500, Joseph Miller wrote:
>>>>>>I keep getting floating point exceptions after doing the following.  I
>>>>>>have attached mencoder output.
>>>>>>
>>>>>>/opt/mplayer/bin/mencoder -oac faac -ovc x264 -of lavf -o
>>>>>>integra-reencode.mp4 integra-mp4box.mp4
>>>>>>/opt/mplayer/bin/mencoder -oac faac -ovc x264 -of lavf -o
>>>>>>integra-reencode.mp4 integra-lavf.mp4
>>>>>>
>>>>>>That last two give me Floating point exception.
>>>>>>
>>>>>>I have uploaded integra.mp4 and integra-lavf.mp4 and
>>>>>>integra-mp4box.mp4 to the following location:
>>>>>>http://www.calcmaster.net/downloads/fpx/
>>>>>>
>>>>>>I have had this happen on MP4Box files and other .mp4 files.  I'm not
>>>
>>> the problem with this bug is that its hard to reproduce. can you tell
>>> us what cpu you are using ?
>>>
>>> try running your mencoder on a different box, another user with the
>>> same fpe found he couldnt reproduce it on another box either.
>>>
>>> your samples work on my p4 1.5ghz:
>>>
>>
>> Interesting.  I have tried with both a PhenomII quad core and my Intel
>> Core i3.  I want to say that I had fewer problems with Ubuntu 10.04,
>> but I'm unable to verify because all my boxes are 10.10 now.  I did
>> try as far back as SVN 2010-01-01.
>>
>
> The decvideo module shows the no picture:
>
> DECVIDEO: Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>  DECVIDEO: INFO: libavcodec init OK!
>  DECVIDEO: Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
>  CPLAYER: ==========================================================================
>  DECVIDEO: vd_ffmpeg data: 1000000, 15006467, 6e534ac, 10017b42
>  DECVIDEO: [h264 @ 0xd3bc60]no picture
> STATUSLINE: Pos:   0.0s      1f ( 6%)  0.00fps Trem:   0min   0mb
> A-V:0.000 [0:0]
>  DECVIDEO: vd_ffmpeg data: 1000000, 1019a41, 1bf22b6, 85841830
>  DECVIDEO: [h264 @ 0xd3bc60]no picture
>  MENCODER:
> 1 duplicate frame(s)!
>    MUXER: VIDEO CODEC ID: 28
>    MUXER: AUDIO CODEC ID: 15002, TAG: 0
>    MUXER: Writing header...
>   GLOBAL: [mp4 @ 0xcc8c40]dimensions not set
> Floating point exception
>
>
>
> A working file produces:
>
>  DECVIDEO: Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>  DECVIDEO: INFO: libavcodec init OK!
>  DECVIDEO: Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
>  CPLAYER: ==========================================================================
>  DECVIDEO: vd_ffmpeg data: 5061900, 24cb0a15, 3330fa13, 9cbda201
>  DECVIDEO: [ffmpeg] aspect_ratio: 1.315789
>  DECVIDEO: VDec: vo config request - 400 x 304 (preferred colorspace:
> Planar YV12)
>  DECVIDEO: Trying filter chain: expand x264
>  CPLAYER: Movie-Aspect is 1.32:1 - prescaling to correct movie aspect.
> x264 [info]: using SAR=1/1
> x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
> x264 [info]: profile High, level 2.1
>

I guess I should include mplayer results too.  Here's the file that
won't re-encode, but the output is from mplayer (which plays the
file):

DECVIDEO: Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
 DECVIDEO: INFO: libavcodec init OK!
 DECVIDEO: Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
  CPLAYER: ==========================================================================
  CPLAYER: ==========================================================================
 DECAUDIO: Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
 DECAUDIO: AUDIO: 44100 Hz, 2 ch, s16le, 48.0 kbit/3.40% (ratio: 6000->176400)
 DECAUDIO: Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG
layer-2, layer-3)
  CPLAYER: ==========================================================================
  CPLAYER: AO: [oss] 44100Hz 2ch s16le (2 bytes per sample)
  CPLAYER: Starting playback...
 DECVIDEO: vd_ffmpeg data: 1000000, 15006467, 6e534ac, 10017b42
 DECVIDEO: [h264 @ 0xe87760]no picture
 DECVIDEO: vd_ffmpeg data: 1000000, 1019a41, 1bf22b6, 85841830
 DECVIDEO: [h264 @ 0xe87760]no picture
 DECVIDEO: vd_ffmpeg data: 1000000, 1029e41, 2e7f453c, 45e08ee4
 DECVIDEO: [ffmpeg] aspect_ratio: 1.315789
 DECVIDEO: VDec: vo config request - 400 x 304 (preferred colorspace:
Planar YV12)
 DECVIDEO: Trying filter chain: vo
  CPLAYER: Movie-Aspect is 1.32:1 - prescaling to correct movie aspect.
  CPLAYER: VO: [xv] 400x304 => 400x304 Planar YV12
 DECVIDEO: *** [vo] Exporting mp_image_t, 400x304x12bpp YUV planar, 182400 bytes
 DECVIDEO: (imgfmt: 32315659, planes: (nil),(nil),(nil) strides:
0,0,0, chroma: 200x152, shift: h:1,v:1)