ubuntu14.04 64bit中非编译安装ffmpeg

sudo add-apt-repository ppa:kirillshkrogalev/ffmpeg-next 

sudo apt-get update 

sudo apt-get install ffmpeg

1. 将mkv转mp4

a.   h264格式的mkv：

ffmpeg -i example.mkv  -acodec copy -vcodec copy example.mp4

b. vp8格式的mkv：

ffmpeg -i test.mkv -b 800k -acodec libfaac -vcodec libx264 out.mp4

如果失败可以使用：

ffmpeg -i test.mkv -b 800k -c:a aac -strict experimental -c:v libx264 out.mp4

log:

ffmpeg version 2.7.2-1~trusty Copyright (c) 2000-2015 the FFmpeg developers  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)  configuration: --prefix=/usr --extra-version='1~trusty' --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --enable-shared --disable-stripping --enable-avresample --enable-avisynth --enable-frei0r --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-openal --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libxvid --enable-libzvbi --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-libssh --enable-libsoxr --enable-libx264 --enable-libopencv --enable-libx265  libavutil      54. 27.100 / 54. 27.100  libavcodec     56. 41.100 / 56. 41.100  libavformat    56. 36.100 / 56. 36.100  libavdevice    56.  4.100 / 56.  4.100  libavfilter     5. 16.101 /  5. 16.101  libavresample   2.  1.  0 /  2.  1.  0  libswscale      3.  1.101 /  3.  1.101  libswresample   1.  2.100 /  1.  2.100  libpostproc    53.  3.100 / 53.  3.100Guessed Channel Layout for  Input Stream #0.1 : monoInput #0, matroska,webm, from 'test.mkv':  Metadata:    ENCODER         : Lavf56.1.0  Duration: 00:00:30.57, start: 0.000000, bitrate: 898 kb/s    Stream #0:0: Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 29.92 tbr, 1k tbn, 1k tbc    Stream #0:1: Audio: pcm_mulaw ([7][0][0][0] / 0x0007), 8000 Hz, 1 channels, s16, 64 kb/sPlease use -b:a or -b:v, -b is ambiguous[libx264 @ 0x1324d20] using SAR=1/1[libx264 @ 0x1324d20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2[libx264 @ 0x1324d20] profile High, level 3.0[libx264 @ 0x1324d20] 264 - core 142 r2389 956c8d8 - 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=6 lookahead_threads=1 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=800 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00[aac @ 0x12bf960] Too many bits per frame requested, clamping to maxOutput #0, mp4, to 'out.mp4':  Metadata:    encoder         : Lavf56.36.100    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 800 kb/s, 29.92 fps, 11488 tbn, 29.92 tbc    Metadata:      encoder         : Lavc56.41.100 libx264    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 8000 Hz, mono, fltp, 48 kb/s    Metadata:      encoder         : Lavc56.41.100 aacStream mapping:  Stream #0:0 -> #0:0 (vp8 (native) -> h264 (libx264))  Stream #0:1 -> #0:1 (pcm_mulaw (native) -> aac (native))Press [q] to stop, [?] for helpInput stream #0:0 frame changed from size:640x480 fmt:yuv420p to size:600x800 fmt:yuv420pInput stream #0:0 frame changed from size:600x800 fmt:yuv420p to size:450x600 fmt:yuv420p drop=0    frame=  916 fps=125 q=-1.0 Lsize=    3012kB time=00:00:30.59 bitrate= 806.5kbits/s dup=244 drop=0    video:2840kB audio:156kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.509654%[libx264 @ 0x1324d20] frame I:4     Avg QP:20.77  size: 28864[libx264 @ 0x1324d20] frame P:365   Avg QP:23.97  size:  6587[libx264 @ 0x1324d20] frame B:547   Avg QP:29.28  size:   709[libx264 @ 0x1324d20] consecutive B-frames: 13.4%  8.5% 37.0% 41.0%[libx264 @ 0x1324d20] mb I  I16..4:  9.4% 57.9% 32.7%[libx264 @ 0x1324d20] mb P  I16..4:  1.2%  4.5%  0.5%  P16..4: 31.1% 13.9%  7.6%  0.0%  0.0%    skip:41.2%[libx264 @ 0x1324d20] mb B  I16..4:  0.1%  0.2%  0.0%  B16..8: 29.8%  2.1%  0.3%  direct: 0.6%  skip:66.9%  L0:42.4% L1:52.0% BI: 5.6%[libx264 @ 0x1324d20] final ratefactor: 22.77[libx264 @ 0x1324d20] 8x8 transform intra:70.2% inter:56.3%[libx264 @ 0x1324d20] coded y,uvDC,uvAC intra: 55.7% 57.9% 18.6% inter: 11.4% 5.5% 0.2%[libx264 @ 0x1324d20] i16 v,h,dc,p:  6% 42%  5% 47%[libx264 @ 0x1324d20] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 37% 15%  3%  7%  5% 10%  3%  7%[libx264 @ 0x1324d20] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 40% 13%  2%  6%  7%  7%  2%  7%[libx264 @ 0x1324d20] i8c dc,h,v,p: 52% 35%  9%  5%[libx264 @ 0x1324d20] Weighted P-Frames: Y:1.4% UV:0.3%[libx264 @ 0x1324d20] ref P L0: 62.5% 15.3% 14.9%  7.3%  0.0%[libx264 @ 0x1324d20] ref B L0: 86.6% 11.5%  1.9%[libx264 @ 0x1324d20] ref B L1: 93.0%  7.0%[libx264 @ 0x1324d20] kb/s:759.70

2.推流测试

ffmpeg -re -i xxx.mpeg -vcodec libx264 -acodec libfaac -f flv rtmp://xx.xx.xx.xx/live/test

控制码率加 -b 800k

控制分辨率加 -s 1280x720