Hello all,
After buying a video sampling card (Pinnacle PCTV Deluxe, with USB connection, and not so deluxe), I want to create video clips in a low-bitrate format which must be highly interchangable (I respect people who use other operating systems).
Transcode is great for generating VCD MPEGS, but that's far too high bitrate. And it also allows to take a cut out of the source video clip, which is a blessing. But I want the real low-end.
This is what I've achieved so far. The following commands give me a VCD:
transcode -i $original -k -z -y mpeg2enc,mp2enc -F 1 -Z 352x288 -E 44100 -b 224 -o $tmpfile
tcmplex -o $outfile -i $tmpfile.m1v -p $tmpfile.mpa -m v && rm -f $tmpfile.m1v $tmpfile.mpa;
The first command generates a video stream and an audio stream, and the second mixes them together. Amazingly, it works like a charm! And if you insist, this is how I make a VCD:
vcdimager -t vcd2 $outfile cdrdao write --driver generic-mmc --device 0,0,0 --speed 24 videocd.cue
OK, so now I want a low-end MPEG? Great, I reduced the bitrate with:
transcode -i $original -k -z -y mpeg2enc,mp2enc -F 0 -Z 352x288 -E 44100 -w 128 -b 96 -o $tmpfile
Note the -w 128 flag, which says video bitrate 128 kbits/sec, and the -b 96 which gets the audio (mp3) down to 96 kbits/sec. The result was disappointing twice: First, because the file remained very large. Second, because the quality was indeed lousy (as expected from a low bitrate).
Ideas, anybody?
Eli
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