Re: ASCD 0.98 WIP 2 released

2012-03-30 Thread Simon Owen
On 30/03/2012 22:01, Aleš Keprt wrote: > So you use your own MRLE encoder instead of Microsoft's codec? How does > it work? Yes, the MRLE encoder is fairly simple, and probably under 100 lines of code. The audio data is exactly what's written to the sound card buffer, so that didn't need encoding

Re: ASCD 0.98 WIP 2 released

2012-03-30 Thread Aleš Keprt
So you use your own MRLE encoder instead of Microsoft's codec? How does it work? I use only codecs installed in Windows. Including the AVI file container - I use AVI support in Windows. AFAIK lossless audio codecs aren't technically possible in ACM. It means FLAC isn't an option for me, becaus

Re: ASCD 0.98 WIP 2 released

2012-03-30 Thread Simon Owen
On 30/03/2012 21:15, Aleš Keprt wrote: > I think the audio track needs to be compressed to MP3 in an external program. MP3 would have been good, though I don't know if finding a legal free codec for the encoding might be a problem? The demo AVI I posted a few years ago was run through VirtualDub

Re: ASCD 0.98 WIP 2 released

2012-03-30 Thread Aleš Keprt
OK, I can let the user choose audio codec. I think the audio track needs to be compressed to MP3 in an external program. I didn't want to spend a lot of time with my avi writer and I don't have any experience with writing mp3, so I used ADPCM. So the question is if ADPCM converted to MP3 has mor

Re: ASCD 0.98 WIP 2 released

2012-03-30 Thread Simon Owen
On 28/03/2012 19:27, Aleš Keprt wrote: > My final choice is Microsoft ADPCM, its bitrate is 384 kbps (for 48kHz > stereo), i.e. 172 MB per hour, and I think the audio quality is good. I tried ADPCM for SimCoupe but wasn't very happy with it. MS-ADPCM was brighter than IMA-ADPCM, but still seemed

Re: ASCD 0.98 WIP 2 released

2012-03-30 Thread Tommo H
I was working on taking a full-frame RGB signal in, separating into YUV, applying a low pass filter (because, e.g. the colour subcarrier is only 4.43361875Mhz, giving PAL a lower horizontal colour resolution than a Sam, though the luminance frequency is much higher) and recombining. Pretty trivial