Hi Recently got a new Video Camera (want to capture the birth of our new baby). Purchased a Panasonic H250.
It produces *.mod and *.MOI files MOV001.MOD: MPEG sequence, v2, program multiplex MOV001.MOI: ps database version 6 from kernel \003\007\007\015N I can use mplayer to play the *.MOD files I have been trying to use transcode to re - encode them into divx, I have seen a 50M -> 8M size reduction using mencoder, but only a 50->17M size reduction with transcode. I am not a transcode user. Plus I have noticed the quality is not really there for Divx tcprobe -i MOV001.MOD [tcprobe] MPEG program stream (PS) [tcprobe] summary for MOV001.MOD, (*) = not default, 0 = not detected import frame size: -g 704x576 [720x576] (*) aspect ratio: 4:3 (*) frame rate: -f 25.000 [25.000] frc=3 PTS=0.3422, frame_time=40 ms, bitrate=9542 kbps audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000] PTS=0.2622, bitrate=256 kbps -D 1 --av_fine_ms 39 (frames & ms) [0] [0] My first problem has been, that this was actually recorded as 16:9 not 4:3 ??? This is the crux of the scrip that i am using to re encode the files TRCODE='/usr/bin/transcode' # Input TRINPUT="-i $INFILE" # 1 for 1:1 aspect ratio. # 2 for 4:3 aspect ratio. # 3 for 16:9 aspect ratio. # 4 for 2.21:1 aspect ratio. # if it is not specified, transcode will attempt to autodetect the input aspect # ratio. TR_INP_ASPECT="--import_asr 3" #TR_INP_AUDIO="-a 0 -e 48000,16,2 -n 0x2000 -D 1 --av_fine_ms 39" #TR_INP_VIDEO="-g 704x576 -f 25.000,3" # transcode should be able to work this out itself TR_INP_VIDEO="" TR_INP_AUDIO="" # OUTPUT TROUTPUT="-o $OUTFILE" TR_OUT_EXPORT="-y ffmpeg -F mpeg4" #TR_OUT_ASPECT="--export_asr 4" # Pass through the AC3 - much larger file, not really needed #TR_SOUND="-A -N 0x2000" # Process $TRCODE -R 1,$WRKDIR/divx4.log $TRINPUT $TR_INP_VIDEO $TR_INP_ASPECT $TR_INP_AUDIO $TR_OUT_EXPORT $TR_OUT_ASPECT $TR_SOUND $TROUTPUT $TRCODE -R 2,$WRKDIR/divx4.log $TRINPUT $TR_INP_VIDEO $TR_INP_ASPECT $TR_INP_AUDIO $TR_OUT_EXPORT $TR_OUT_ASPECT $TR_SOUND $TROUTPUT avifix -i $TROUTPUT -F DIVX this is my ~/.transcode/ffmpeg.cfg [mpeg4] mbd = 2 qpel = 1 trell = 1 mbd = 2 vhq v4mv vb_strategy=1 mbd=2 last_pred=2 dia=-1 vmax_b_frames=2 cmp=2 subcmp=2 precmp=0 vqcomp=0.6 #turbo #aspect=16:9 #vtag=DivX The quality difference between mencoder and transcode is about the same. My question is what am I doing wrong with transcode ? and what can I do to get better quality ? Alex
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