压缩参数
program --preset slower --crf 18.0 --ref 3 --qpmin 15 --qpmax 50 --ratetol 50 --qcomp 0.7 --no-mbtree --merange 24 --trellis 1 --no-fast-pskip --range pc --output "output" "input"
AVS
LoadPlugin("D:\工作区\B\tools\MeGUI\tools\avs\directshowsource.dll")
DirectShowSource("B:\src\crf19\VTM.mp4", fps=29.970, audio=false, convertfps=true).AssumeFPS(30000,1001)
#deinterlace
#crop
LanczosResize(854,480) # Lanczos (Sharp)
#denoise
#denoise
片源属性
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.2
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 45mn 43s
Bit rate mode : Variable
Bit rate : 4 541 Kbps
Maximum bit rate : 6 152 Kbps
Width : 1 248 pixels
Original width : 1 280 pixels
Height : 702 pixels
Original height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.173
Stream size : 1.45 GiB (93%)
Language : English
Encoded date : UTC 2012-04-29 14:27:57
Tagged date : UTC 2012-04-29 14:30:02
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177
我压缩480p后颜色变淡，变亮了不少。是不是需要添加颜色转换？
