JAVE 音频、视频转换工具

JAVE（Java Audio Video Encoder），是一款将音频和视频在不同格式间进行转化的工具，是基于ffmpeg项目的Java封装。
JAVE，需要J2SE 1.4+、Windows 或 Linux 操作系统均可运行。
JAVE支持的编码和解码格式见下表：

Decoding
Formato	        Descrizione
4xm	        4X Technologies format
MTV	        MTV format
RoQ	        Id RoQ format
aac	        ADTS AAC
ac3	        raw ac3
aiff	        Audio IFF
alaw	    pcm A law format
amr	    3gpp amr file format
apc	    CRYO APC format
ape	    Monkey's Audio
asf	    asf format
au	    SUN AU Format
avi	    avi format
avs	    AVISynth
bethsoftvid	    Bethesda Softworks 'Daggerfall' VID format
c93	    Interplay C93
daud	    D-Cinema audio format
dsicin	    Delphine Software International CIN format
dts	    raw dts
dv	    DV video format
dxa	    dxa
ea	    Electronic Arts Multimedia Format
ea_cdata	    Electronic Arts cdata
ffm	    ffm format
film_cpk	    Sega FILM/CPK format
flac	    raw flac
flic	    FLI/FLC/FLX animation format
flv	    flv format
gif	    GIF Animation
gxf	    GXF format
h261	    raw h261
h263	    raw h263
h264	    raw H264 video format
idcin	    Id CIN format
image2	    image2 sequence
image2pipe	    piped image2 sequence
ingenient	    Ingenient MJPEG
ipmovie	    Interplay MVE format
libnut	    nut format
m4v	    raw MPEG4 video format
matroska	    Matroska File Format
mjpeg	    MJPEG video
mm	    American Laser Games MM format
mmf	    mmf format
mov,mp4,m4a,3gp,3g2,mj2	    QuickTime/MPEG4/Motion JPEG 2000 format
mp3	    MPEG audio layer 3
mpc	    musepack
mpc8	    musepack8
mpeg	    MPEG1 System format
mpegts	    MPEG2 transport stream format
mpegtsraw	    MPEG2 raw transport stream format
mpegvideo	    MPEG video
mulaw	    pcm mu law format
mxf	    MXF format
nsv	    NullSoft Video format
nut	    nut format
nuv	    NuppelVideo format
ogg	    Ogg format
psxstr	    Sony Playstation STR format
rawvideo	    raw video format
redir	    Redirector format
rm	    rm format
rtsp	    RTSP input format
s16be	    pcm signed 16 bit big endian format
s16le	    pcm signed 16 bit little endian format
s8	    pcm signed 8 bit format
sdp	    SDP
shn	    raw shorten
siff	    Beam Software SIFF
smk	    Smacker Video
sol	    Sierra SOL Format
swf	    Flash format
thp	    THP
tiertexseq	    Tiertex Limited SEQ format
tta	    true-audio
txd	    txd format
u16be	    pcm unsigned 16 bit big endian format
u16le	    pcm unsigned 16 bit little endian format
u8	    pcm unsigned 8 bit format
vc1	    raw vc1
vmd	    Sierra VMD format
voc	    Creative Voice File format
wav	    wav format
wc3movie	    Wing Commander III movie format
wsaud	    Westwood Studios audio format
wsvqa	    Westwood Studios VQA format
wv	    WavPack
yuv4mpegpipe	    YUV4MPEG pipe format
 
Encoding

Formato	    Descrizione
3g2	    3gp2 format
3gp	    3gp format
RoQ	    Id RoQ format
ac3	    raw ac3
adts	    ADTS AAC
aiff	    Audio IFF
alaw	    pcm A law format
amr	    3gpp amr file format
asf	    asf format
asf_stream	    asf format
au	    SUN AU Format
avi	    avi format
crc	    crc testing format
dv	    DV video format
dvd	    MPEG2 PS format (DVD VOB)
ffm	    ffm format
flac	    raw flac
flv	    flv format
framecrc	    framecrc testing format
gif	    GIF Animation
gxf	    GXF format
h261	    raw h261
h263	    raw h263
h264	    raw H264 video format
image2	    image2 sequence
image2pipe	    piped image2 sequence
libnut	    nut format
m4v	    raw MPEG4 video format
matroska	    Matroska File Format
mjpeg	    MJPEG video
mmf	    mmf format
mov	    mov format
mp2	    MPEG audio layer 2
mp3	    MPEG audio layer 3
mp4	    mp4 format
mpeg	    MPEG1 System format
mpeg1video	    MPEG video
mpeg2video	    MPEG2 video
mpegts	    MPEG2 transport stream format
mpjpeg	    Mime multipart JPEG format
mulaw	    pcm mu law format
null	    null video format
nut	    nut format
ogg	    Ogg format
psp	    psp mp4 format
rawvideo	    raw video format
rm	    rm format
rtp	    RTP output format
s16be	    pcm signed 16 bit big endian format
s16le	    pcm signed 16 bit little endian format
s8	    pcm signed 8 bit format
svcd	    MPEG2 PS format (VOB)
swf	    Flash format
u16be	    pcm unsigned 16 bit big endian format
u16le	    pcm unsigned 16 bit little endian format
u8	    pcm unsigned 8 bit format
vcd	    MPEG1 System format (VCD)
vob	    MPEG2 PS format (VOB)
voc	    Creative Voice File format
wav	    wav format
yuv4mpegpipe	    YUV4MPEG pipe format

JAVE的使用非常简便，将包jave-1.0.jar导入工程路径即可。下面给出一段将AVI转换成FLV的代码片段：
view plain

File source = new File("source.avi");  
File target = new File("target.flv");  
AudioAttributes audio = new AudioAttributes();  
audio.setCodec("libmp3lame");  
audio.setBitRate(new Integer(64000));  
audio.setChannels(new Integer(1));  
audio.setSamplingRate(new Integer(22050));  
VideoAttributes video = new VideoAttributes();  
video.setCodec("flv");  
video.setBitRate(new Integer(160000));  
video.setFrameRate(new Integer(15));  
video.setSize(new VideoSize(400, 300));  
EncodingAttributes attrs = new EncodingAttributes();  
attrs.setFormat("flv");  
attrs.setAudioAttributes(audio);  
attrs.setVideoAttributes(video);  
Encoder encoder = new Encoder();  
encoder.encode(source, target, attrs); 

细心看这段代码，不难找到其中可以设置压缩码率、分辨率、音频解码率等参数，非常的简便。
JAVE工程网站： http://www.sauronsoftware.it/projects/jave/index.php
截至目前此项目最新版本是v1.0.2