id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
498	Invalid pixel aspect ratio encoding mpeg4	cehoyos		"Reencoding attached sample fails for some resolutions, this is a regression since c8868f28e357e7e6ffe3254d0056b3e8033fe8e5 (""vf_scale: apply the same transform to the aspect during init that is applied per frame"")
{{{
$ ffmpeg -i PAR1035.avi -s 640x460 -an out.avi
ffmpeg version N-32771-g3039c68, Copyright (c) 2000-2011 the FFmpeg developers
  built on Sep 22 2011 12:35:59 with gcc 4.5.3
  configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc
  libavutil    51. 16. 1 / 51. 16. 1
  libavcodec   53. 16. 0 / 53. 16. 0
  libavformat  53. 12. 0 / 53. 12. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 43. 2 /  2. 43. 2
  libswscale    2.  1. 0 /  2.  1. 0

Seems stream 0 codec frame rate differs from container frame rate: 30000.00 (30000/1) -> 29.97 (30000/1001)
Input #0, avi, from 'PAR1035.avi':
  Metadata:
    encoder         : Lavf53.4.0
  Duration: 00:04:57.16, start: 0.000000, bitrate: 28 kb/s
    Stream #0.0: Video: mpeg4 (Simple Profile) (DX50 / 0x30355844), yuv420p, 720x406 [SAR 1:1 DAR 360:203], 29.97 fps, 29.97 tbr, 29.97 tbn, 30k tbc
    Stream #0.1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16, 192 kb/s
[buffer @ 0x12ea7c0] w:720 h:406 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
[scale @ 0x12cb580] w:720 h:406 fmt:yuv420p -> w:640 h:460 fmt:yuv420p flags:0x4
[mpeg4 @ 0x12c76e0] Invalid pixel aspect ratio 1035/812, limit is 255/255
Output #0, avi, to 'out.avi':
  Metadata:
    encoder         : Lavf53.4.0
    Stream #0.0: Video: mpeg4, yuv420p, 640x460 [SAR 1035:812 DAR 360:203], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
Stream mapping:
  Stream #0.0 -> #0.0 (mpeg4 -> mpeg4)
Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
}}}
"	defect	closed	important	undetermined	git-master	fixed	regression				1	0