id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
2017	[scale @ 0x195aa60] w:1280 h:720 fmt:yuv420p sar:1/1 -> w:426 h:238 fmt:yuv420p sar:1904/1917 flags:0x4 [buffer @ 0x1895de0] Invalid pixel format '-1' Error opening filters!	mobil1		"ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jul  6 2012 10:40:09 with gcc 4.4.6 20110731 (Red Hat 4.4.6-3)
  configuration: --prefix=/usr --enable-shared --disable-static --enable-libx264 --enable-gpl --enable-libmp3lame
  libavutil      51. 54.100 / 51. 54.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.100 / 54.  6.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 77.100 /  2. 77.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100



w:1280 h:720 pixfmt:yuv420p tb:1/2000 sar:1/1 sws_param:flags=2
[buffersink @ 0x19251e0] No opaque field provided
[scale @ 0x195aa60] w:1280 h:720 fmt:yuv420p sar:1/1 -> w:426 h:238 fmt:yuv420p sar:1904/1917 flags:0x4
[buffer @ 0x1895de0] Invalid pixel format '-1'
Error opening filters!


i am using this command line

ffmpeg -i ""/mnt/video_in/Season 6/The.Sopranos.S06E01.720p.x264.mkv"" -s 426x238 -r 24000/1001 -b:v 600k -maxrate 4000k -bufsize 2000k -vcodec libx264 -acodec aac -ac 2 -ar 22050 -ab 64k -map 0:v -map 0:a:0 -strict experimental /tmp/video_tmp.mp4

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centos 6.3 64 bit

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"	enhancement	closed	normal	undetermined	unspecified	needs_more_info					0	0