[FFmpeg-trac] #1990(undetermined:new): mjpeg enc: sampling factors too large for interleaved scan

FFmpeg trac at avcodec.org
Tue Dec 4 14:59:21 CET 2012


#1990: mjpeg enc: sampling factors too large for interleaved scan
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 the output jpg file does not decode with ImageMagick/IrfanView and other
 software because of
 "sampling factors too large for interleaved scan" error

 http://nl.nrk.no/podkast/aps/10908/nrk_radioresepsjonen_2012-1129-0325_6348979963.mp3

 {{{
 C:\>ffmpeg -probesize 9000000 -i
 nrk_radioresepsjonen_2012-1129-0325_6348979
 963.mp3 out.jpg
 ffmpeg version N-47325-gb90e795 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Dec  1 2012 02:23:25 with gcc 4.5.0 (GCC) 20100414 (Fedora
 MinGW 4.5.
 0-1.fc14)
   configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build
 --arch=
 x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686
 -pc-min
 gw32-gcc' --enable-w32threads --enable-memalign-hack --enable-runtime-
 cpudetect
 --enable-cross-compile --enable-static --disable-shared --extra-
 libs='-lws2_32 -
 lwinmm -lpthread' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snap
 shots/build/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/s
 napshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-
 version3
 --enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora
 --enable-
 libvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libvpx --disable-
 decoder=libvpx
   libavutil      52. 10.100 / 52. 10.100
   libavcodec     54. 78.100 / 54. 78.100
   libavformat    54. 41.100 / 54. 41.100
   libavdevice    54.  3.101 / 54.  3.101
   libavfilter     3. 23.104 /  3. 23.104
   libswscale      2.  1.103 /  2.  1.103
   libswresample   0. 17.101 /  0. 17.101
   libpostproc    52.  2.100 / 52.  2.100
 [mp3 @ 0x1eebf40] Format mp3 detected only with low score of 24,
 misdetection po
 ssible!
 [mp3 @ 0x1eebf40] max_analyze_duration 5000000 reached at 5015510
 [mp3 @ 0x1eebf40] Estimating duration from bitrate, this may be inaccurate
 Input #0, mp3, from 'nrk_radioresepsjonen_2012-1129-0325_6348979963.mp3':
   Metadata:
     title           : 29.11.2012 Radioresepsjonen
     album           : NRK P3 - Radioresepsjonen
     artist          : NRK P3 - Radioresepsjonen
     genre           : Podcast
     date            : 2012
   Duration: 01:20:31.24, start: 0.000000, bitrate: 127 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
     Stream #0:1: Video: bmp, bgr24, 1200x1200, 90k tbr, 90k tbn, 90k tbc
     Metadata:
       title           :
       comment         : Cover (front)
     Stream #0:2: Video: bmp, bgr24, 1200x1200, 90k tbr, 90k tbn, 90k tbc
     Metadata:
       title           :
       comment         : Cover (front)
 [image2 @ 0x1ee3940] Frame rate very high for a muxer not efficiently
 supporting
  it.
 Please consider specifying a lower framerate, a different muxer or -vsync
 2
 Output #0, image2, to 'out.jpg':
   Metadata:
     title           : 29.11.2012 Radioresepsjonen
     album           : NRK P3 - Radioresepsjonen
     artist          : NRK P3 - Radioresepsjonen
     genre           : Podcast
     date            : 2012
     encoder         : Lavf54.41.100
     Stream #0:0: Video: mjpeg, yuvj444p, 1200x1200, q=2-31, 200 kb/s, 90k
 tbn, 9
 0k tbc
     Metadata:
       title           :
       comment         : Cover (front)
 Stream mapping:
   Stream #0:1 -> #0:0 (bmp -> mjpeg)
 Press [q] to stop, [?] for help
 frame=    1 fps=0.0 q=8.5 Lsize=       0kB time=00:00:00.00 bitrate=
 0.0kbits/
 s
 video:125kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 -100.000000%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1990>
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