[FFmpeg-trac] #1092(avcodec:open): amv: gray bar at the bottom

[FFmpeg]

#1092: amv: gray bar at the bottom
------------------------------------+-----------------------------------
             Reporter:  ami_stuff   |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  amv         |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+-----------------------------------

Comment (by ami_stuff):

 crashes with -s 556x566, probably the same issue

 {{{
 (gdb) r -i 599.png -s 556x556 -vcodec amv out.avi
 The program being debugged has been started already.
 Start it from the beginning? (y or n) y

 Starting program: d:\mingw\msys\1.0\ffmpeg\ffmpeg_g.exe -i 599.png -s
 556x556 -v
 codec amv out.avi
 [New Thread 3568.0xfcc]
 ffmpeg version 0.9.1.git Copyright (c) 2000-2012 the FFmpeg developers
   built on Mar 10 2012 16:15:15 with gcc 4.6.1
   configuration: --disable-yasm --disable-ffprobe
   libavutil      51. 42.100 / 51. 42.100
   libavcodec     54. 10.100 / 54. 10.100
   libavformat    54.  2.100 / 54.  2.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 63.100 /  2. 63.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  7.100 /  0.  7.100
 Input #0, image2, from '599.png':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: png, rgb24, 599x412, 25 tbr, 25 tbn, 25 tbc
 File 'out.avi' already exists. Overwrite ? [y/N] y
 Incompatible pixel format 'rgb24' for codec 'amv', auto-selecting format
 'yuvj42
 0p'
 [buffer @ 03871d00] w:599 h:412 pixfmt:rgb24 tb:1/1000000 sar:0/1
 sws_param:
 [scale @ 038712a0] w:599 h:412 fmt:rgb24 -> w:556 h:556 fmt:yuvj420p
 flags:0x4
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf54.2.100
     Stream #0:0: Video: amv (AMVF / 0x46564D41), yuvj420p, 556x556,
 q=2-31, 200
 kb/s, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (png -> amv)
 Press [q] to stop, [?] for help

 Program received signal SIGSEGV, Segmentation fault.
 0x00739e7a in load_input_picture (pic_arg=0x22d788, s=0x38635c0)
     at libavcodec/mpegvideo_enc.c:1036
 1036                            memcpy(dst, src, w);
 (gdb) bt
 #0  0x00739e7a in load_input_picture (pic_arg=0x22d788, s=0x38635c0)
     at libavcodec/mpegvideo_enc.c:1036
 #1  ff_MPV_encode_picture (avctx=0x386ab20, pkt=0x22db40,
 pic_arg=0x22d788,
     got_packet=0x22dc0c) at libavcodec/mpegvideo_enc.c:1429
 #2  0x007d21cc in amv_encode_picture (avctx=0x386ab20, pkt=0x22db40,
     pic_arg=0x22d9d8, got_packet=0x22dc0c) at libavcodec/mjpegenc.c:472
 #3  0x004f945d in avcodec_encode_video2 (avctx=0x386ab20, avpkt=0x22db40,
     frame=0x22d9d8, got_packet_ptr=0x22dc0c) at libavcodec/utils.c:1219
 #4  0x00405de0 in do_video_out (s=0x386a620, ost=0x3863320,
     in_picture=0x3873800, ist=<optimized out>) at ffmpeg.c:1619
 #5  0x00407d6c in transcode_video (pkt_pts=<optimized out>,
     got_output=<optimized out>, pkt=<optimized out>, ist=<optimized out>)
     at ffmpeg.c:2178
 #6  output_packet (ist=0x3871640, ost_table=0x3863320, nb_ostreams=1,
     pkt=0x22fb28) at ffmpeg.c:2270
 #7  0x0040bf3b in transcode (output_files=0x3871ac0, nb_output_files=1,
     input_files=0x3871700, nb_input_files=1) at ffmpeg.c:3082
 #8  0x0022ff48 in ?? ()
 Backtrace stopped: Not enough registers or memory available to unwind
 further
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1092#comment:2>
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