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七牛音视频转码 avthumb参数formats格式及解释

发表时间:2019-09-25 14:11:59

参数 format:目标音频(比如 mp3 m4a 等)或视频(比如 avi 、flv 、mp4等)格式。

该参数支持具体格式如下表:

formatsdescription
3g23GP2 (3GPP2 file format)
3gp3GP (3GPP file format)
a64a64 video for Commodore 64
ac3raw AC-3
adtsADTS AAC (Advanced Audio Coding)
adxCRI ADX
aiffAudio IFF
alawPCM A-law
amr3GPP AMR
asfASF (Advanced / Active Streaming Format)
asf_streamASF (Advanced / Active Streaming Format)
assSSA (SubStation Alpha) subtitle
astAST (Audio Stream)
auSun AU
aviAVI (Audio Video Interleaved)
avm2SWF (ShockWave Flash) (AVM2)
bitG.729 BIT file format
cafApple CAF (Core Audio Format)
cavsvideoraw Chinese AVS (Audio Video Standard) video
crcCRC testing
dataraw data
daudD-Cinema audio
diracraw Dirac
dnxhdraw DNxHD (SMPTE VC-3)
dtsraw DTS
dvDV (Digital Video)
dvdMPEG-2 PS (DVD VOB)
eac3raw E-AC-3
f32bePCM 32-bit floating-point big-endian
f32lePCM 32-bit floating-point little-endian
f4vF4V Adobe Flash Video
f64bePCM 64-bit floating-point big-endian
f64lePCM 64-bit floating-point little-endian
ffmFFM (FFserver live feed)
ffmetadataFFmpeg metadata in text
filmstripAdobe Filmstrip
flacraw FLAC
flvFLV (Flash Video)
framecrcframecrc testing
framemd5Per-frame MD5 testing
g722raw G.722
g723_1raw G.723.1
gifGIF Animation
gxfGXF (General eXchange Format)
h261raw H.261
h263raw H.263
h264raw H.264 video
hlsApple HTTP Live Streaming
icoMicrosoft Windows ICO
ilbciLBC storage
image2image2 sequence
image2pipepiped image2 sequence
ipodiPod H.264 MP4 (MPEG-4 Part 14)
ircamBerkeley/IRCAM/CARL Sound Format
ismvISMV/ISMA (Smooth Streaming)
ivfOn2 IVF
jacosubJACOsub subtitle format
latmLOAS/LATM
m4vraw MPEG-4 video
matroskaMatroska
md5MD5 testing
microdvdMicroDVD subtitle format
mjpegraw MJPEG video
mkvtimestamp_v2extract pts as timecode v2 format, as defined by mkvtoolnix
mlpraw MLP
mmfYamaha SMAF
movQuickTime / MOV
mp2MP2 (MPEG audio layer 2)
mp3MP3 (MPEG audio layer 3)
mp4MP4 (MPEG-4 Part 14)
mpegMPEG-1 Systems / MPEG program stream
mpeg1videoraw MPEG-1 video
mpeg2videoraw MPEG-2 video
mpegtsMPEG-TS (MPEG-2 Transport Stream)
mpjpegMIME multipart JPEG
mulawPCM mu-law
mxfMXF (Material eXchange Format)
mxf_d10MXF (Material eXchange Format) D-10 Mapping
nutNUT
oggOgg
omaSony OpenMG audio
pspPSP MP4 (MPEG-4 Part 14)
rawvideoraw video
rmRealMedia
roqraw id RoQ
rsoLego Mindstorms RSO
rtpRTP output
rtspRTSP output
s16bePCM signed 16-bit big-endian
s16lePCM signed 16-bit little-endian
s24bePCM signed 24-bit big-endian
s24lePCM signed 24-bit little-endian
s32betPCM signed 32-bit big-endian
s32lePCM signed 32-bit little-endian
s8PCM signed 8-bit
sapSAP output
segmentsegment
smjpegLoki SDL MJPEG
smoothstreamingSmooth Streaming Muxer
soxSoX native
spdifIEC 61937 (used on S/PDIF - IEC958)
srtSubRip subtitle
stream_segmentstreaming segment muxer
ssegmentstreaming segment muxer
svcdMPEG-2 PS (SVCD)
swfSWF (ShockWave Flash)
teeMultiple muxer tee
truehdraw TrueHD
u16bePCM unsigned 16-bit big-endian
u16lePCM unsigned 16-bit little-endian
u24bePCM unsigned 24-bit big-endian
u24lePCM unsigned 24-bit little-endian
u32bePCM unsigned 32-bit big-endian
u32lePCM unsigned 32-bit little-endian
u8PCM unsigned 8-bit
vc1raw VC-1 video
vc1testVC-1 test bitstream
vcdMPEG-1 Systems / MPEG program stream (VCD)
vobMPEG-2 PS (VOB)
vocCreative Voice
w64Sony Wave64
wavWAV / WAVE (Waveform Audio)
webmMatroska / WebM
webvttWebVTT subtitle
wtvWindows Television (WTV)
wvraw WavPack
yuv4mpegpipeYUV4MPEG pipe


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