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Video mixer with mencoder (2008.11.30 - only updated to r28053)
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I began development video mixer with mencoder.
At moment implemented and new function are:
- Encodig video and audio to shmem:// (shared memory stream)
- Export video frame filter to shmem:// (similar my CCTV)
allowed settings: format, size and render OSD
- Import video from shmem://
allowed settings: import position, size, alpha and import to window in current video
allowed 'pause' effect and on/off import
- Import audio from shmem://
allowed settings: master audio volume, import audio volume and mixing two audio
- Dynamic filters
allowed: all parameters control from master pts
- Add blank stream to mencoder master stream (video and audio)
allowed settings video: format, size, color, fps
allowed settings audio: sample rate, channels
- Automatic forker to more file mixing
Not implemented:
- Automatic resamle import audio samplerate to master audio samplerate
- Relative import postions
Samples: (sample video)
Sample video mixing:
mencoder file1.avi -o shmem://1 &
mencoder file2.avi -vf import=1:10.0:1:128:-160:-120:640:480:80:60:160:120 -af import=1:0.5:0.5 -o out.avi [options]
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Automatic forker:
mencoder file2.avi -import-files 1:file1.avi -vc lavc -ac mp3lame \
-vf import=1:10.0:1::0:0:160:120 -af import=1:0.5:1 -import-srate 1:48000
Dynamic filter:
mencoder blank://blue -blank w=640:h=480:rate=44100 -vc lavc -ac mp3lame -o out.avi \
-import-files 1:file1.avi -import-srate 1:44100 \
-import-files 2:file2.avi -import-srate 2:44100 \
-vf import=1:0.0:0,import=2:0.5:0.5 \
-af import=1:0.0:0,import=2:0.5:0.5 \
-dfcmd file:dfcmd.txt \
-endpos 1220
dfcmf.txt:
# 5-10 sec fade in file1.avi
1:0:static:import:05.00:1:0:0:0:640:480
1:0:dynamic:import:10.00::255
# 600-610 sec fade out file1.avi
1:0:static:import:600.00::255
1:0:dynamic:import:610.00::0
1:0:static:import:610.00:0
# 600-610 sec fade in file2.avi
2:0:static:import:600.00:1:0:0:0:640:480
2:0:dynamic:import:610::255
# 1200-1210 sec file2.avi move to left
2:0:static:import:1200:::0
2:0:static:import:1210:::640
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I am sorry to say that my English knowledge isn't good.
Best regards! Ötvös Attila.
2008.11.30
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