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

[Joseph Miller]

On Fri, Dec 24, 2010 at 2:43 PM, Joseph Miller <josephcmiller2 at gmail.com> wrote:
> 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)
>

OK some good news,
-demuxer h264es seems to allow the encoding to progress for the file
muxed with lavf, but it doesn't decode any sound.
-demuxer h264es causes segfault with MP4Box muxed file.