将视频从隔行扫描转为逐行扫描
其实主要是这个参数： -deinterlace隔行扫描的视频一般在播放的时候，会有横条感，逐行扫描的视频播放的时候感觉会好很多，会感觉清晰很多
命令行如下：
ffmpeg -i 1.mts -strict -2 -vcodec libx264 -vb 2000k -deinterlace -r 30 -vprofile high -vlevel 5.1 -acodec aac -ar 44100 -ab 128k a.mp4
输出内容如下：
# ./ccmediasystem/trunk/3rdparty/ffmpeg/_release/bin/ffmpeg -i 2.mts -strict -2 -vcodec libx264 -vb 2000k -deinterlace -r 30 -vprofile high -vlevel 5.1 -acodec aac -ar 44100 -ab 128k b.mp4
ffmpeg version 2.1.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Jul 28 2014 14:16:31 with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-54)
configuration: --enable-gpl --enable-nonfree --yasmexe=/data/cache1/qi.liu/ccmediasystem/trunk/3rdparty/ffmpeg/_release/bin/yasm --prefix=/data/cache1/qi.liu/ccmediasystem/trunk/3rdparty/ffmpeg/_release --cc= --enable-static --disable-shared --disable-debug --extra-cflags='-I${ffmpeg_exported_release_dir}/include' --extra-ldflags='-L${ffmpeg_exported_release_dir}/lib -lm -ldl' --disable-ffplay --disable-ffprobe --disable-ffserver --disable-doc --enable-postproc --enable-bzlib --enable-zlib --enable-parsers --enable-libfreetype --enable-libx264 --enable-libmp3lame --enable-libfaac --enable-pthreads --extra-libs=-lpthread --enable-encoders --enable-decoders --enable-avfilter --enable-muxers --enable-demuxers
libavutil 52. 48.101 / 52. 48.101
libavcodec 55. 39.101 / 55. 39.101
libavformat 55. 19.104 / 55. 19.104
libavdevice 55.5.100 / 55.5.100
libavfilter 3. 90.100 /3. 90.100
libswscale 2.5.101 /2.5.101
libswresample 0. 17.104 /0. 17.104
libpostproc 52.3.100 / 52.3.100
Input #0, mpegts, from '2.mts':
Duration: 00:07:46.16, start: 1.433333, bitrate: 11571 kb/s
Program 1
Metadata: bbs.chinaffmpeg.com 孙悟空
service_name : Service01
service_provider: FFmpeg
Stream #0:0: Video: h264 (High) ( / 0x001B), yuv420p, 1440x1080 , 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
Stream #0:1: Audio: ac3 ( / 0x0081), 48000 Hz, stereo, fltp, 256 kb/s
File 'b.mp4' already exists. Overwrite ? y
using SAR=4/3
using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
profile High, level 5.1
264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=2000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'b.mp4':
Metadata:
encoder : ChinaCache Encoder (By GMP) bbs.chinaffmpeg.com 孙悟空
Stream #0:0: Video: h264 (libx264) ( / 0x0021), yuv420p, 1440x1080 , q=-1--1, 2000 kb/s, 15360 tbn, 30 tbc
Stream #0:1: Audio: aac ( / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (ac3 -> aac)
Press to stop, [?] for help
frame=13985 fps= 29 q=-1.0 Lsize=121231kB time=00:07:46.21 bitrate=2130.2kbits/s dup=29 drop=0
video:113456kB audio:7295kB subtitle:0 global headers:0kB muxing overhead 0.397247%
frame I:72 Avg QP:27.53size: 36793
frame P:7947Avg QP:30.67size: 11377
frame B:5966Avg QP:33.28size:3875
consecutive B-frames: 18.2% 71.8%8.8%1.2%
mb II16..4: 25.8% 64.5%9.6%
mb PI16..4:4.4%5.5%0.3%P16..4: 39.9%5.1%2.1%0.0%0.0% skip:42.7%
mb BI16..4:0.1%0.2%0.0%B16..8: 37.6%1.2%0.1%direct: 0.2%skip:60.7%L0:33.0% L1:66.2% BI: 0.8%
final ratefactor: 28.66
8x8 transform intra:54.8% inter:88.6%
coded y,uvDC,uvAC intra: 22.1% 31.5% 2.1% inter: 7.4% 7.1% 0.0%
i16 v,h,dc,p: 44% 21% 11% 24%
i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26%9% 39%3%4%7%4%5%3%
i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 15% 19%4%7%9%5%5%3%
i8c dc,h,v,p: 70% 10% 17%3%
Weighted P-Frames: Y:7.1% UV:2.3%
ref P L0: 68.2% 19.9%9.3%2.6%0.1%
ref B L0: 91.1%8.6%0.2%
ref B L1: 98.7%1.3%
kb/s:1993.76
#
隔行行扫描的图像如下：
逐行扫描的图像如下
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