nginx 播放视频(2)

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　　1
　　cd /usr/local/nginx/html/broadcast3
　　2,
　　ffmpeg -i 20150428101917_31520150408监利新闻（三）.flv -c:v libx264 -c:a aac -strict -2 -f hls test22.m3u8
　　执行结果:

ffmpeg version N-72743-g130a6c0 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --enable-version3 --enable-libvpx --enable-libfaac --enable-libmp3lame --enable-libvorbis --enable-libx264 --enable-libxvid --enable-shared --enable-gpl --enable-postproc --enable-nonfree --enable-avfilter --enable-pthreads --enable-libnut --enable-libtheora
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
libswscale      3.  1.101 /  3.  1.101
libswresample   1.  2.100 /  1.  2.100
libpostproc    53.  3.100 / 53.  3.100
Input #0, flv, from '20150428101917_31520150408监利新闻（三）.flv':
Metadata:
encoder         : Lavf53.6.0
Duration: 00:23:02.61, start: 0.000000, bitrate: 453 kb/s
Stream #0:0: Video: flv1, yuv420p, 320x240, 800 kb/s, 18 fps, 18 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: mp3, 22050 Hz, stereo, s16p, 58 kb/s
[libx264 @ 0xfa8680] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0xfa8680] profile High, level 1.2
Output #0, hls, to 'test22.m3u8':
Metadata:
encoder         : Lavf56.36.100
Stream #0:0: Video: h264 (libx264), yuv420p, 320x240, q=-1--1, 18 fps, 90k tbn, 18 tbc
Metadata:
encoder         : Lavc56.41.100 libx264
Stream #0:1: Audio: aac, 22050 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder         : Lavc56.41.100 aac
Stream mapping:
Stream #0:0 -> #0:0 (flv1 (flv) -> h264 (libx264))
Stream #0:1 -> #0:1 (mp3 (native) -> aac (native))
Press [q] to stop, [?] for help
frame=24886 fps=131 q=27.0 Lsize=N/A time=00:23:02.60 bitrate=N/A   
video:40726kB audio:21245kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[libx264 @ 0xfa8680] frame I:180   Avg QP:18.64  size: 13909
[libx264 @ 0xfa8680] frame P:18092 Avg QP:23.20  size:  2073
[libx264 @ 0xfa8680] frame B:6614  Avg QP:26.06  size:   257
[libx264 @ 0xfa8680] consecutive B-frames: 60.2% 10.6%  7.8% 21.4%
[libx264 @ 0xfa8680] mb I  I16..4: 13.8% 66.2% 20.0%
[libx264 @ 0xfa8680] mb P  I16..4:  0.6%  1.9%  0.3%  P16..4: 25.3% 14.2% 12.6%  0.0%  0.0%    skip:45.1%
[libx264 @ 0xfa8680] mb B  I16..4:  0.1%  0.3%  0.0%  B16..8: 21.6%  2.9%  0.9%  direct: 1.0%  skip:73.3%  L0:41.6% L1:45.6% BI:12.8%
[libx264 @ 0xfa8680] 8x8 transform intra:67.8% inter:67.4%
[libx264 @ 0xfa8680] coded y,uvDC,uvAC intra: 69.6% 73.8% 34.0% inter: 20.4% 13.7% 2.9%
[libx264 @ 0xfa8680] i16 v,h,dc,p: 13% 69% 12%  6%
[libx264 @ 0xfa8680] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 28% 28%  4%  4%  4%  6%  4%  7%
[libx264 @ 0xfa8680] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 31% 13%  5%  6%  6%  7%  5%  7%
[libx264 @ 0xfa8680] i8c dc,h,v,p: 43% 34% 18%  5%
[libx264 @ 0xfa8680] Weighted P-Frames: Y:0.9% UV:0.5%
[libx264 @ 0xfa8680] ref P L0: 73.5% 15.3%  7.8%  3.4%  0.0%
[libx264 @ 0xfa8680] ref B L0: 86.6% 11.0%  2.4%
[libx264 @ 0xfa8680] ref B L1: 94.9%  5.1%
[libx264 @ 0xfa8680] kb/s:241.31
　　但是m3u8 文件中的切片不全
　　vim test22.m3u8

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:11
#EXT-X-MEDIA-SEQUENCE:168
#EXTINF:3.111111,
test22168.ts
#EXTINF:3.666667,
test22169.ts
#EXTINF:10.111111,
test22170.ts
#EXTINF:10.000000,
test22171.ts
#EXTINF:4.888889,
test22172.ts
#EXT-X-ENDLIST
 
　　参考:
　　http://www.cnblogs.com/littlehb/p/3914437.html
　　http://hdu104.com/294
　　http://blog.csdn.net/liuhongxiangm/article/details/18666993
　　http://blog.csdn.net/cdnight/article/details/39156711

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