编译libav(ffmpeg)库
端木兴国
1、下载最新的yasm1.20,编译安装（最新的x264会用到）
http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz
2、下载最新的x264
3、下载最新的libav
其中：
http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz
2、下载最新的x264
export PATH=$PATH:/home/xy/mywork/av/yasm-1.2.0
./configure --enable-gpl3、下载最新的libav
sudo apt-get install libsdl1.2-dev (avplay 编译使用)
http://libav.org/releases/libav-snapshot.tar.bz2
export PATH=$PATH:/home/xy/mywork/av/yasm-1.2.0
./configure --enable-gpl --enable-libx264 --extra-cflags="-I/home/xy/mywork/av/x264-snapshot-20140218-2245" --extra-ldflags="-L/home/xy/mywork/av/x264-snapshot-20140218-2245" --extra-libs="-ldl"其中：
1、编译加--enable-libx264选项时要加--enable-gql；为了找到x264要加上--extra-cflags和--extra-ldflags,要编译x264不出错；要加上--extra-libs="-ldl"
configure的结果：
xy@xy-laptop:~/mywork/av/libav-2014-03-02$ ./configure --enable-gpl --enable-libx264 --extra-cflags="-I/home/xy/mywork/av/x264-snapshot-20140218-2245" --extra-ldflags="-L/home/xy/mywork/av/x264-snapshot-20140218-2245" --extra-libs="-ldl"
install prefix /usr/local
source path .
C compiler gcc
C library glibc
ARCH x86 (generic)
big-endian no
runtime cpu detection no
yasm yes
MMX enabled yes
MMXEXT enabled yes
3DNow! enabled yes
3DNow! extended enabled yes
SSE enabled yes
SSSE3 enabled yes
AVX enabled yes
XOP enabled yes
FMA3 enabled yes
FMA4 enabled yes
i686 features enabled yes
CMOV is fast no
EBX available yes
EBP available yes
debug symbols yes
optimize for size no
optimizations yes
static yes
shared no
new filter support yes
network support yes
threading support pthreads
safe bitstream reader yes
SDL support no
External libraries:
libx264 zlib
Enabled decoders:
aac cllc lagarith
aac_latm comfortnoise loco
aasc cook mace3
ac3 cscd mace6
adpcm_4xm cyuv mdec
adpcm_adx dca metasound
adpcm_ct dfa mimic
adpcm_ea dnxhd mjpeg
adpcm_ea_maxis_xa dpx mjpegb
adpcm_ea_r1 dsicinaudio mlp
adpcm_ea_r2 dsicinvideo mmvideo
adpcm_ea_r3 dvbsub motionpixels
adpcm_ea_xas dvdsub mp1
adpcm_g722 dvvideo mp1float
adpcm_g726 dxa mp2
adpcm_ima_amv dxtory mp2float
adpcm_ima_apc eac3 mp3
adpcm_ima_dk3 eacmv mp3adu
adpcm_ima_dk4 eamad mp3adufloat
adpcm_ima_ea_eacs eatgq mp3float
adpcm_ima_ea_sead eatgv mp3on4
adpcm_ima_iss eatqi mp3on4float
adpcm_ima_qt eightbps mpc7
adpcm_ima_smjpeg eightsvx_exp mpc8
adpcm_ima_wav eightsvx_fib mpeg1video
adpcm_ima_ws escape124 mpeg2video
adpcm_ms escape130 mpeg4
adpcm_sbpro_2 ffv1 msa1
adpcm_sbpro_3 ffvhuff msmpeg4v1
adpcm_sbpro_4 fic msmpeg4v2
adpcm_swf flac msmpeg4v3
adpcm_thp flashsv msrle
adpcm_xa flashsv2 mss1
adpcm_yamaha flic mss2
aic flv msvideo1
alac fourxm mszh
als fraps mts2
amrnb frwu mxpeg
amrwb g2m nellymoser
amv g723_1 nuv
anm gif pam
ansi gsm pbm
ape gsm_ms pcm_alaw
ass h261 pcm_bluray
asv1 h263 pcm_dvd
asv2 h263i pcm_f32be
atrac1 h264 pcm_f32le
atrac3 hevc pcm_f64be
atrac3p hnm4_video pcm_f64le
aura huffyuv pcm_lxf
aura2 iac pcm_mulaw
avs idcin pcm_s16be
bethsoftvid iff_byterun1 pcm_s16le
bfi iff_ilbm pcm_s16le_planar
bink imc pcm_s24be
binkaudio_dct indeo2 pcm_s24daud
binkaudio_rdft indeo3 pcm_s24le
bmp indeo4 pcm_s24le_planar
bmv_audio indeo5 pcm_s32be
bmv_video interplay_dpcm pcm_s32le
c93 interplay_video pcm_s32le_planar
cavs jpeg2000 pcm_s8
cdgraphics jpegls pcm_s8_planar
cdxl jv pcm_u16be
cinepak kgv1 pcm_u16le
cljr kmvc pcm_u24be
pcm_u24le sipr vmdaudio
pcm_u32be smackaud vmdvideo
pcm_u32le smacker vmnc
pcm_u8 smc vorbis
pcm_zork sol_dpcm vp3
pcx sp5x vp5
pgm srt vp6
pgmyuv sunrast vp6a
pgssub svq1 vp6f
pictor svq3 vp8
png tak vp9
ppm targa vqa
prores theora wavpack
ptx thp webp
qcelp tiertexseqvideo wmalossless
qdm2 tiff wmapro
qdraw tmv wmav1
qpeg truehd wmav2
qtrle truemotion1 wmavoice
r10k truemotion2 wmv1
r210 truespeech wmv2
ra_144 tscc wmv3
ra_288 tscc2 wmv3image
ralf tta wnv1
rawvideo twinvq ws_snd1
rl2 txd xan_dpcm
roq ulti xan_wc3
roq_dpcm utvideo xan_wc4
rpza v210 xl
rv10 v210x xsub
rv20 v410 xwd
rv30 vb yop
rv40 vble zerocodec
s302m vc1 zlib
sgi vc1image zmbv
shorten vcr1
Enabled encoders:
a64multi h263p pcm_u32le
a64multi5 huffyuv pcm_u8
aac jpegls pcx
ac3 libx264 pgm
ac3_fixed ljpeg pgmyuv
adpcm_adx mjpeg png
adpcm_g722 mp2 ppm
adpcm_g726 mpeg1video prores
adpcm_ima_qt mpeg2video qtrle
adpcm_ima_wav mpeg4 ra_144
adpcm_ms msmpeg4v2 rawvideo
adpcm_swf msmpeg4v3 roq
adpcm_yamaha nellymoser roq_dpcm
alac pam rv10
ass pbm rv20
asv1 pcm_alaw sgi
asv2 pcm_f32be sunrast
bmp pcm_f32le svq1
cljr pcm_f64be targa
comfortnoise pcm_f64le tiff
dnxhd pcm_mulaw utvideo
dpx pcm_s16be v210
dvbsub pcm_s16le v410
dvdsub pcm_s24be vorbis
dvvideo pcm_s24daud wmav1
eac3 pcm_s24le wmav2
ffv1 pcm_s32be wmv1
ffvhuff pcm_s32le wmv2
flac pcm_s8 xbm
flashsv pcm_u16be xsub
flv pcm_u16le xwd
gif pcm_u24be zlib
h261 pcm_u24le zmbv
h263 pcm_u32be
Enabled hwaccels:
Enabled parsers:
aac flac mpegvideo
aac_latm gsm png
ac3 h261 pnm
adx h263 rv30
cavsvideo h264 rv40
cook hevc tak
dca mjpeg vc1
dirac mlp vorbis
dnxhd mpeg4video vp3
dvbsub mpegaudio vp8
dvdsub
Enabled demuxers:
aac image2 pcm_u32be
ac3 image2pipe pcm_u32le
adx ingenient pcm_u8
aea ipmovie pmp
aiff iss pva
amr iv8 qcp
anm ivf r3d
apc jv rawvideo
ape latm rl2
asf lmlm4 rm
ass lxf roq
au m4v rpl
avi matroska rso
avs mjpeg rtp
bethsoftvid mlp rtsp
bfi mm sap
bink mmf sdp
bmv mov segafilm
c93 mp3 shorten
caf mpc siff
cavsvideo mpc8 smacker
cdg mpegps smjpeg
cdxl mpegts sol
daud mpegtsraw sox
dfa mpegvideo spdif
dirac msnwc_tcp srt
dnxhd mtv str
dsicin mvi swf
dts mxf tak
dv mxg thp
dxa nc tiertexseq
ea nsv tmv
ea_cdata nut truehd
eac3 nuv tta
ffm ogg tty
ffmetadata oma txd
filmstrip pcm_alaw vc1
flac pcm_f32be vc1t
flic pcm_f32le vmd
flv pcm_f64be voc
fourxm pcm_f64le vqf
g722 pcm_mulaw w64
g723_1 pcm_s16be wav
gsm pcm_s16le wc3
gxf pcm_s24be wsaud
h261 pcm_s24le wsvqa
h263 pcm_s32be wtv
h264 pcm_s32le wv
hevc pcm_s8 xa
hls pcm_u16be xmv
hnm pcm_u16le xwma
idcin pcm_u24be yop
iff pcm_u24le yuv4mpegpipe
ilbc
Enabled muxers:
a64 image2 pcm_s16be
ac3 image2pipe pcm_s16le
adts ipod pcm_s24be
adx ismv pcm_s24le
aiff ivf pcm_s32be
amr latm pcm_s32le
asf m4v pcm_s8
asf_stream matroska pcm_u16be
ass matroska_audio pcm_u16le
au md5 pcm_u24be
avi mjpeg pcm_u24le
avm2 mlp pcm_u32be
cavsvideo mmf pcm_u32le
crc mov pcm_u8
daud mp2 psp
dirac mp3 rawvideo
dnxhd mp4 rm
dts mpeg1system roq
dv mpeg1vcd rso
eac3 mpeg1video rtp
f4v mpeg2dvd rtsp
ffm mpeg2svcd sap
ffmetadata mpeg2video segment
filmstrip mpeg2vob smjpeg
flac mpegts smoothstreaming
flv mpjpeg sox
framecrc mxf spdif
framemd5 mxf_d10 srt
g722 null swf
gif nut tg2
gxf ogg tgp
h261 oma truehd
h263 pcm_alaw vc1t
h264 pcm_f32be voc
hds pcm_f32le wav
hevc pcm_f64be webm
hls pcm_f64le wv
ilbc pcm_mulaw yuv4mpegpipe
Enabled protocols:
concat httpproxy rtmpt
crypto md5 rtp
ffrtmphttp mmsh srtp
file mmst tcp
gopher pipe udp
hls rtmp unix
http
Enabled filters:
aformat drawbox overlay
amix fade pad
anull fieldorder pixdesctest
anullsink format resample
anullsrc fps rgbtestsrc
asetpts framepack scale
ashowinfo gradfun select
asplit hflip setdar
asyncts hqdn3d setpts
atrim interlace setsar
blackframe join settb
boxblur lut showinfo
channelmap lutrgb split
channelsplit lutyuv testsrc
color movie transpose
compand negate trim
copy noformat unsharp
crop null vflip
cropdetect nullsink volume
delogo nullsrc yadif
Enabled bsfs:
aac_adtstoasc imx_dump_header noise
chomp mjpeg2jpeg remove_extradata
dump_extradata mjpega_dump_header text2movsub
h264_mp4toannexb mov2textsub
Enabled indevs:
dv1394 oss v4l2
fbdev
Enabled outdevs:
oss
License: GPL version 2 or later
Creating config.mak and config.h...
config.h is unchanged
config.asm is unchanged
libavutil/avconfig.h is unchanged
xy@xy-laptop:~/mywork/av/libav-2014-03-02$ make -j20
相关代码已打包上传到：
http://download.csdn.net/detail/xyyangkun/6990663
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