yamitranscode - Man Page

transcode application base on libyami


This program transcode video bitstream to different codec.


-i <source filename> load a raw yuv file or a compressed video file -W <width> -H <height> -o <coded file> optional -b <bitrate: kbps> optional -f <frame rate> optional -c <codec: HEVC|AVC|VP8|JPEG> -s <fourcc: I420|NV12|IYUV|YV12> -N <number of frames to encode(camera default 50), useful for camera> -t <AVC scalability temporal layer number  (default 1)> optional --qp <initial qp> optional --rcmode <CBR|CQP> optional --ipperiod <0 (I frame only) | 1 (I and P frames) | N (I,P and B frames, B frame number is N-1)> optional --intraperiod <Intra frame period(default 30)> optional --refnum <number of referece frames(default 1)> optional --idrinterval <AVC/HEVC IDR frame interval(default 0)> optional --disable-cabac <AVC is to use CABAC or not, for Main and High Profile, default is enabled --enable-dct8x8 <AVC is to use DCT8x8 or not, for High Profile, default is disabled --disable-deblock <AVC is to use Deblock or not, default is enabled --deblockalphadiv2 <AVC Alpha offset of debloking filter divided 2 (default 2)> optional --deblockbetadiv2 <AVC Beta offset of debloking filter divided 2 (default 2)> optional --qpip <qp difference between adjacent I/P (default 0)> optional --qpib <qp difference between adjacent I/B (default 0)> optional --priorityid <AVC priority_id of prefix nal unit (default 0)> optional --ow <output width> optional --oh <output height> optional --btl0 <svc-t layer 0 bitrate: kbps> optional --btl1 <svc-t layer 1 bitrate: kbps > optional --btl2 <svc-t layer 2 bitrate: kbps> optional --btl3 <svc-t layer 3 bitrate: kbps> optional


October 2016