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View Full Version : Maximum SVCD bitrate?

Hacksaw
18th January 2003, 16:30
Peoples,

I have been trying to find the definitive maximum bitrate for an SVCD. I have found a number of different values quoted on this site and others sites that all claim to be the standard value.

I have been trying to encode a CBR SVCD to the maximum possible rate, but my DVD player has been having some audio and video skips. I have a single 224 audio track, and have tried encoding the video anywhere from 2530 down to 2500. I am going to try 2400 (I just found another value stating 2724 as the maximum), but was wondering if anyone could help clarify the issue.

Thanks,
Hacksaw.
Hacksaw
19th January 2003, 15:53
Seems 2500 does the job on my DVD player. Anything over and I begin to get playback problems. I guess I should ask another related question which may be off topic in this forum, but ... The default VBR SVCD settings in DVD2SVCD has a max bitrate of 2530. When I encoded CBR @ 2530 is caused problems with my DVD player. I assume I should reduce this to 2500 as a result when doing VBR?

Thanks again,
Hacksaw.
adam
20th January 2003, 18:57
The maximum video bitrate allowed is 2600kbits.
The maximum audio bitrate allowed is 384kbits
The maximum total bitrate (Audio + Video + some overhead + subs) is
2778kbits. The 2724 amount you read probably doesn't take overhead into acount, but it really doesn't matter anyway.

This is what the SVCD specs state, your mileage will definitely vary according to your dvd player. Most players can handle at least a little bit higher than the 2778kbits cap, but many skip at this point even though they are required not to.

Just keep experimenting, but I recommend you multiplex with bbmpeg. I know TMPGenc's multiplexor has gotten better over the years but I still don't trust it.
htc10825
21st January 2003, 13:59
The muxer of TMPG cannt increase the muxing rate automatically according to the source bitrate. So it will produce usable results only for the mpeg files encoded TMPG's standard profiles(for SVCD is CBR 2520k video and 192k audio, vcd CBR 1150k+224k). Every other thing is just a matter of (mostly bed)luck.