./ffmpeg -y -i  /root/fGFNmEOntFA.flv -vcodec libx264 -coder 0 -flags +loop -cmp +chroma  -subq 2 -me_range 16 -bf 0 -refs 2 -trellis 0 -x264opts no-mixed-refs=1:no-8x8dct=1:no-mbtree=1:partitions=i4x4:no-weightb=0:ipratio=1.41:rc_lookahead=0 -threads 1  -wpredp 0 -rc_lookahead 20 -g 250 -keyint_min 125 -sc_threshold 20  -i_qfactor 0.71 -qcomp 0.6 -qmin 10  -qmax 51 -qdiff 4  /tmp/test.3g1.flv
ffmpeg version 0.10.2.git-xuggle-5.5 Copyright (c) 2000-2012 the FFmpeg developers
  built on Feb  8 2013 22:28:15 with gcc 4.4.6 20120305 (Red Hat 4.4.6-4)
  configuration: --prefix=/xuggler/xuggle-xuggler --extra-version=xuggle-5.5 --extra-cflags=-I/xuggler/xuggle-xuggler/build/native/x86_64-unknown-linux-gnu/captive/stage/xuggler/xuggle-xuggler/include --extra-ldflags=-L/xuggler/xuggle-xuggler/build/native/x86_64-unknown-linux-gnu/captive/stage/xuggler/xuggle-xuggler/lib --enable-shared --enable-pic --enable-gpl --enable-nonfree --enable-libx264 --enable-version3 --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libvo-aacenc --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-openssl --enable-zlib --enable-libvpx
  libavutil      51. 46.100 / 51. 46.100
  libavcodec     54. 14.101 / 54. 14.101
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 67.101 /  2. 67.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 10.100 /  0. 10.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, flv, from '/root/fGFNmEOntFA.flv':
  Metadata:
    totalduration   : 253
    canseekontime   : true
    bytelength      : 28921233
    starttime       : 0
    sourcedata      : B4A7D6943HH1323097821880048
    encoder         : Lavf52.111.0
  Duration: 00:04:13.08, start: 0.001000, bitrate: 678 kb/s
    Stream #0:0: Video: h264 (Main), yuv420p, 640x360, 479 kb/s, 24 tbr, 1k tbn, 48 tbc
    Stream #0:1: Audio: aac, 44100 Hz, stereo, s16, 64 kb/s
[buffer @ 0x1388800] w:640 h:360 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:flags=2
[libx264 @ 0x1366b40] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
[libx264 @ 0x1366b40] profile Constrained Baseline, level 3.0
[libx264 @ 0x1366b40] 264 - core 122 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=0 ref=2 deblock=1:0:0 analyse=0x1:0x1 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=125 scenecut=20 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=10 qpmax=51 qpstep=4 ip_ratio=1.41 aq=1:1.00
Output #0, flv, to '/tmp/test.3g1.flv':
  Metadata:
    totalduration   : 253
    canseekontime   : true
    bytelength      : 28921233
    starttime       : 0
    sourcedata      : B4A7D6943HH1323097821880048
    encoder         : Lavf54.3.100
    Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 640x360, q=10-51, 1k tbn, 24 tbc
    Stream #0:1: Audio: mp3 ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> libx264)
  Stream #0:1 -> #0:1 (aac -> libmp3lame)
Press [q] to stop, [?] for help
frame= 6069 fps=120 q=-1.0 Lsize=   31787kB time=00:04:13.12 bitrate=1028.7kbits/s
video:27561kB audio:3956kB global headers:0kB muxing overhead 0.858117%
[libx264 @ 0x1366b40] frame I:169   Avg QP:21.70  size: 20958
[libx264 @ 0x1366b40] frame P:5900  Avg QP:25.22  size:  4183
[libx264 @ 0x1366b40] mb I  I16..4: 18.7%  0.0% 81.3%
[libx264 @ 0x1366b40] mb P  I16..4:  4.2%  0.0%  3.2%  P16..4: 54.8%  0.0%  0.0%  0.0%  0.0%    skip:37.8%
[libx264 @ 0x1366b40] coded y,uvDC,uvAC intra: 50.0% 66.7% 24.8% inter: 17.3% 15.2% 0.9%
[libx264 @ 0x1366b40] i16 v,h,dc,p: 49% 25% 17% 10%
[libx264 @ 0x1366b40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 21% 18%  5%  6%  5%  5%  5%  4%
[libx264 @ 0x1366b40] i8c dc,h,v,p: 48% 20% 25%  7%
[libx264 @ 0x1366b40] ref P L0: 81.9% 18.1%
[libx264 @ 0x1366b40] kb/s:891.94