[FFmpeg-user] ffplay j2k in mxf file

Donald McLachlan Donald.McLachlan at crc.ca
Thu Feb 9 17:02:40 CET 2012


Update.  I was just back in the lab,  I tried playing the video again - 
and was distracted while talking to a colleague.  About 45 seconds later 
faint images appeared on the screen.  The movie was just "fading in".  I 
was mislead because it plays *so* slowly - about 1 frame per second is 
my guess.

Does anyone know if/how this player can use multithreaded decoding?

Don


On 09/02/2012 9:23 AM, Donald McLachlan wrote:
> Hi All,
>
> I built the latest ffmpeg from the git head this morning. When trying 
> to play an mxf file containing a j2k video:
>
> crc at crc-fsmanager:~>  ffplay -fs -strict -2 -autoexit speedday*
> ffplay version N-37669-gf2b20b7 Copyright (c) 2003-2012 the FFmpeg 
> developers
>   built on Feb  9 2012 09:03:32 with gcc 4.5.1 20101208 
> [gcc-4_5-branch revision 167585]
>   configuration: --enable-libopenjpeg 
> --extra-cflags=-I/usr/local/include 
> --extra-cflags=-I/usr/local/include/openjpeg-1.5
>   libavutil      51. 38.101 / 51. 38.101
>   libavcodec     54.  1.100 / 54.  1.100
>   libavformat    54.  0.100 / 54.  0.100
>   libavdevice    53.  4.100 / 53.  4.100
>   libavfilter     2. 62.100 /  2. 62.100
>   libswscale      2.  1.100 /  2.  1.100
>   libswresample   0.  6.100 /  0.  6.100
> [mxf @ 0x1409600] "OPAtom" with 2 ECs - assuming OP1a
> Input #0, mxf, from 'speedday_4k_V1.mxf':
>   Duration: 00:02:04.87, start: 0.000000, bitrate: 238875 kb/s
>     Stream #0:0: Video: j2k, rgb48le, 4096x2160, 24 tbr, 24 tbn, 24 tbc
> [buffersink @ 0x1427ee0] auto-inserting filter 'auto-inserted scale 0' 
> between the filter 'src' and the filter 'out'
> [scale @ 0x1427800] w:4096 h:2160 fmt:rgb48le ->  w:4096 h:2160 
> fmt:yuv420p flags:0x4
>    0.68 A-V:  0.000 fd=   0 aq=    0KB vq=   21KB sq=    0B f=0/0   0/0
>
> Only a black screen is displayed.  How does one resolve this?
> (Presumably to do with the OPAtom message above).
>
> Thanks,
> Don
>
>
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