[FFmpeg-trac] #2483(FFmpeg:new): Cropping video with height=1 fails

FFmpeg trac at avcodec.org
Fri Apr 19 02:07:47 CEST 2013


#2483: Cropping video with height=1 fails
-------------------------------------+-------------------------------------
             Reporter:  elektronaut  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  FFmpeg       |                  Version:
             Keywords:  crop         |  unspecified
  cropping                           |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 Cropping a video with height 1px fails:
 "-filter crop=848:1:0:240" fails with error message:
 "[Parsed_crop_0 @ 026cff60] Invalid too big or non positive size for width
 '848' or height '0'"
 How to reproduce:
 Use a video as input an crop to a 1px high strip.

 I know this is not very helpful but this instruction was working well with
 a ffmpeg version from September 2012. I am afraid I can not provide the
 version I used back then.

 A height of 2px works fine.
 I used a this
 {{{
 ffmpeg -i c:\strip\GOPR0492.MP4 -filter crop=848:1:0:240 "out0%6d.png"

 ffmpeg version N-52233-gee94362
 built on Apr 18 2013 02:50:33 with gcc 4.8.0 (GCC)

 C:\strip>ffmpeg -i c:\strip\GOPR0492.MP4 -filter crop=848:1:0:240
 "out0%6d.png"
  -v 9 -loglevel 99
 ffmpeg version N-52233-gee94362 Copyright (c) 2000-2013 the FFmpeg
 developers built on Apr 18 2013 02:50:33 with gcc 4.8.0 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
 --enable-gnutls --enable-iconv --enable-libass --enable-libbluray
 --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc
 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenjpeg --enable-libopus--enable-librtmp --enable-
 libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
 --enable-libtwolame--enable-libvo-aacenc --enable-libvo-amrwbenc --enable-
 libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-
 libxvid --ena
 ble-zlib
   libavutil      52. 26.100 / 52. 26.100
   libavcodec     55.  2.100 / 55.  2.100
   libavformat    55.  2.100 / 55.  2.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 56.103 /  3. 56.103
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 Splitting the commandline.
 Reading option '-i' ... matched as input file with argument
 'c:\strip\GOPR0492.MP4'.
 Reading option '-filter' ... matched as option 'filter' (set stream
 filtergraph) with argument 'crop=848:1:0:240'.
 Reading option 'out0%6d.png' ... matched as output file.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level)
 with argument '99'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Successfully parsed a group of options.
 Parsing a group of options: input file c:\strip\GOPR0492.MP4.
 Successfully parsed a group of options.
 Opening an input file: c:\strip\GOPR0492.MP4.
 [mov,mp4,m4a,3gp,3g2,mj2 @ 02249800] Format mov,mp4,m4a,3gp,3g2,mj2 probed
 with size=2048 and score=100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 02249800] ISO: File Type Major Brand: avc1
 [mov,mp4,m4a,3gp,3g2,mj2 @ 02249800] File position before
 avformat_find_stream_info() is 3047424
 [h264 @ 0224b840] AVC: Consumed only 93163 bytes instead of 93166
 [h264 @ 0224b840] Using externally provided dimensions
 [h264 @ 0224b840] no picture
 [mov,mp4,m4a,3gp,3g2,mj2 @ 02249800] All info found
 [mov,mp4,m4a,3gp,3g2,mj2 @ 02249800] File position after
 avformat_find_stream_info() is 3140977
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'c:\strip\GOPR0492.MP4':
   Metadata:
     major_brand     : avc1
     minor_version   : 0
     compatible_brands: avc1isom
     creation_time   : 2013-04-18 17:51:49
   Duration: 00:11:12.36, start: 0.000000, bitrate: 30179 kb/s
     Stream #0:0(eng), 1, 1/720000: Video: h264 (High) (avc1 / 0x31637661),
 yuvj 420p, 848x480 [SAR 1:1 DAR 53:30], 1/480, 30004 kb/s, 240 fps, 240
 tbr, 720k tbn,  480 tbc
     Metadata:
       creation_time   : 2013-04-18 17:51:49
       handler_name    :  GoPro AVC
     Stream #0:1(eng), 1, 1/48000: Audio: aac (mp4a / 0x6134706D), 48000
 Hz, stereo, fltp, 128 kb/s
     Metadata:
       creation_time   : 2013-04-18 17:51:49
       handler_name    :  GoPro AAC
 Successfully opened the file.
 Parsing a group of options: output file out0%6d.png.
 Applying option filter (set stream filtergraph) with argument
 crop=848:1:0:240.
 Successfully parsed a group of options.
 Opening an output file: out0%6d.png.
 Successfully opened the file.
 [Parsed_crop_0 @ 0224c2e0] Setting 'out_w' to value '848'
 [Parsed_crop_0 @ 0224c2e0] Setting 'out_h' to value '1'
 [Parsed_crop_0 @ 0224c2e0] Setting 'x' to value '0'
 [Parsed_crop_0 @ 0224c2e0] Setting 'y' to value '240'
 [graph 0 input from stream 0:0 @ 0224c1a0] Setting 'video_size' to value
 '848x480'
 [graph 0 input from stream 0:0 @ 0224c1a0] Setting 'pix_fmt' to value '12'
 [graph 0 input from stream 0:0 @ 0224c1a0] Setting 'time_base' to value
 '1/720000'
 [graph 0 input from stream 0:0 @ 0224c1a0] Setting 'pixel_aspect' to value
 '1/1'
 [graph 0 input from stream 0:0 @ 0224c1a0] Setting 'sws_param' to value
 'flags=2'
 [graph 0 input from stream 0:0 @ 0224c1a0] Setting 'frame_rate' to value
 '240/1'
 [graph 0 input from stream 0:0 @ 0224c1a0] w:848 h:480 pixfmt:yuvj420p
 tb:1/720000 fr:240/1 sar:1/1 sws_param:flags=2
 [format @ 0224c000] compat: called with
 args=[rgb24|rgba|rgb48be|rgba64be|pal8|gray|gray8a|gray16be|monob]
 [format @ 0224c000] Setting 'pix_fmts' to value
 'rgb24|rgba|rgb48be|rgba64be|pal8|gray|gray8a|gray16be|monob'
 [auto-inserted scaler 0 @ 0224c420] Setting 'w' to value '0'
 [auto-inserted scaler 0 @ 0224c420] Setting 'h' to value '0'
 [auto-inserted scaler 0 @ 0224c420] Setting 'flags' to value '0x4'
 [auto-inserted scaler 0 @ 0224c420] w:0 h:0 flags:'0x4' interl:0
 [format @ 0224c000] auto-inserting filter 'auto-inserted scaler 0' between
 the filter 'Parsed_crop_0' and the filter 'format'
 [AVFilterGraph @ 03f0e4c0] query_formats: 4 queried, 3 merged, 1 already
 done, 0 delayed
 [auto-inserted scaler 0 @ 0224c420] picking rgb24 out of 7 ref:yuvj420p
 alpha:0
 [Parsed_crop_0 @ 0224c2e0] w:848 h:480 sar:1/1 -> w:848 h:0 sar:1/1
 [Parsed_crop_0 @ 0224c2e0] Invalid too big or non positive size for width
 '848' or height '0'
 [graph 0 input from stream 0:0 @ 0224c1a0] Failed to configure input pad
 on Parsed_crop_0
 Error opening filters!
 [AVIOContext @ 0224a740] Statistics: 3009155 bytes read, 2 seeks


 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2483>
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