[FFmpeg-trac] #2970(avcodec:new): White line in top macroblock of dvvideo

FFmpeg trac at avcodec.org
Wed Sep 18 09:59:14 CEST 2013


#2970: White line in top macroblock of dvvideo
--------------------------------------+---------------------------------
               Reporter:  cehoyos     |                  Owner:
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  avcodec
                Version:  git-master  |               Keywords:  dvvideo
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
--------------------------------------+---------------------------------
 http://thread.gmane.org/gmane.comp.video.ffmpeg.user/47955
 A user uploaded a dvvideo sample (made with Quantel server) that shows a
 white line in the top macroblock (near to the sun) that is apparently not
 supposed to be there.
 {{{
 $ ffmpeg -i dv5p-from-quantel-server_white-line-on-decode.dv -vframes 1
 out.jpg
 ffmpeg version N-56404-g4d09d2e Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Sep 18 2013 09:55:31 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 44.100 / 52. 44.100
   libavcodec     55. 31.101 / 55. 31.101
   libavformat    55. 17.100 / 55. 17.100
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 86.100 /  3. 86.100
   libswscale      2.  5.100 /  2.  5.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 [dv @ 0x2520880] Estimating duration from bitrate, this may be inaccurate
 Input #0, dv, from 'dv5p-from-quantel-server_white-line-on-decode.dv':
   Metadata:
     timecode        : 09:59:50:00
   Duration: 00:00:00.32, start: 0.000000, bitrate: 57600 kb/s
     Stream #0:0: Video: dvvideo, yuv422p, 720x576 [SAR 64:45 DAR 16:9],
 57600 kb/s, 25 tbr, 25 tbn, 25 tbc
     Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
 [swscaler @ 0x250a680] deprecated pixel format used, make sure you did set
 range correctly
 Output #0, image2, to 'out.jpg':
   Metadata:
     timecode        : 09:59:50:00
     encoder         : Lavf55.17.100
     Stream #0:0: Video: mjpeg, yuvj422p, 720x576 [SAR 64:45 DAR 16:9],
 q=2-31, 200 kb/s, 90k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (dvvideo -> mjpeg)
 Press [q] to stop, [?] for help
 frame=    1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
 video:31kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 -100.068504%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2970>
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