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Directory contents:
bin: MCTF's executables.compile: script for creating MCTF's executables.README.txt: this, file.src: source files of MCTF.
source ./compile
remember to define the variable MCTF and to put the dir ~/bin at the
beggining of the PATH variable:
export MCTF=~/MCTF-video-coding/"
export PATH=~/bin:$PATH
export MCTF_TEXTURE_CODEC="j2k"
export MCTF_MOTION_CODEC="j2k"
export MCTF_QUANTIZER="orthogonal"
mkdir tmp
cd tmp
wget http://www.hpca.ual.es/~vruiz/videos/container_352x288x30x420x300.avi
ffmpeg -i container_352x288x30x420x300.avi container_352x288x30x420x300.yuv
ln -s container_352x288x30x420x300.yuv low_0
mctf compress --TRLs=6 --GOPs=2 --quality=0.7
mctf info --TRLs=6 --GOPs=2
mkdir tmp
mctf copy tmp
cd tmp
mctf expand --TRLs=6 --GOPs=2
mplayer low_0 -demuxer rawvideo -rawvideo cif -loop 0
export MCTF_TEXTURE_CODEC="j2k"
export MCTF_MOTION_CODEC="j2k"
mkdir tmp
cd tmp
wget http://www.hpca.ual.es/~vruiz/videos/container_352x288x30x420x300.avi
ffmpeg -i container_352x288x30x420x300.avi container_352x288x30x420x300.yuv
ln -s container_352x288x30x420x300.yuv low_0
mctf compress --TRLs=2 --GOPs=2 --motion_layers=1 --texture_layers=8
mctf info_j2k --TRLs=2 --GOPs=2
mkdir transcode_quality
mctf transcode_quality --TRLs=2 --GOPs=2 --QSLs=5 --motion_layers=1 --texture_layers=8
cd transcode_quality
mctf info_j2k --TRLs=2 --GOPs=2
mctf expand --TRLs=2 --GOPs=2
mplayer low_0 -demuxer rawvideo -rawvideo cif -loop 0
mkdir mj2k
cd mj2k
ln -s ~/Videos/container_352x288x30x420x300.yuv low_0
mcmj2k compress --TRLs=1 --GOPs=289 --quantizations="45000"
mcmj2k info --TRLs=1 --GOPs=289
mkdir tmp
cp *.mjc *type* tmp
cd tmp
mcmj2k expand --TRLs=1 --GOPs=289
mplayer low_0 -demuxer rawvideo -rawvideo cif -loop 0
cd ../../..
rm -rf mj2k
mkdir mcj2k
cd mcj2k
ln -s ~/Videos/container_352x288x30x420x300.yuv low_0
mcmj2k compress --TRLs=6 --GOPs=9 --quantizations="44098"
mcmj2k info --TRLs=6 --GOPs=9
mkdir tmp
cp *.mjc *type* tmp
cd tmp
mcmj2k expand --TRLs=6 --GOPs=9
mplayer low_0 -demuxer rawvideo -rawvideo cif -loop 0
cd ../../..
rm -rf mcj2k
:
rm -f *motion*
mcj2k compress --pictures=289
mcj2k info --pictures=289
mcj2k expand --pictures=289
:
mcj2k compress --quantizations="44000,43500,43000 # Higher slopes,
# worst qualities
mcj2k info
mcj2k expand # 44000
mcj2k expand --layers=2 # 43500
mcj2k expand --layers=3 # 43000
:
rm -f *motion*
mcj2k compress --temporal_levels=6
mcj2k info --temporal_levels=6
mcj2k expand --temporal_levels=6
mkdir tmp
cd tmp
ln -s ~/Videos/container_352x288x30x420x300.yuv low_0
mcjpg compress
mcjpg info
mkdir tmp
cp *.mjpeg *.mjc *type* tmp
cd tmp
mcjpg expand
mplayer low_0 -demuxer rawvideo -rawvideo cif -loop 0
cd ../../..
rm -rf tmp
:
mcjpg compress --slopes="25" # Higher slope, worst quality
mcjpg info
mcjpg expand
The current version of MCTF has the following limitations:
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The number of encoded images must be a multiply of the GOP-size plus one. Thus, for example, if GOP-size=32, the number of compressed images have to be 33, 65, 97, ...
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The size of the images must be a multiply of the macro-block size. This means that, for example, if the image is 1280x720 pixels, only up to 16x16 macro-blocks can be used.
The MCTF project has been supported by the Junta de Andalucía through the Proyecto Motriz "Codificación de Vídeo Escalable y su Streaming sobre Internet" (P10-TIC-6548).