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mp2 "hardware" delegation not working as hoped

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minjaesong
2023-01-15 00:23:01 +09:00
parent 0eb4a1e4ea
commit ff01a49bc3
2 changed files with 192 additions and 14 deletions
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15
assets/disk0/tvdos/include/mp2dec.js
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@@ -779,7 +779,7 @@ var kjmp2_decode_frame=function(mp2,fr,pcm,outL,outR) {
};
};
}
let ppcm=0;
// let ppcm=0;
// coefficient input and reconstruction
for (part = 0; part < 3; ++part){
for (gr = 0; gr < 4; ++gr) {
@@ -788,14 +788,10 @@ var kjmp2_decode_frame=function(mp2,fr,pcm,outL,outR) {
for (sb = 0; sb < bound; ++sb){
for (ch = 0; ch < 2; ++ch){
read_samples(allocation[ch][sb], scalefactor[ch][sb][part], sample[ch][sb]);
// read_samples(allocation[ch][sb], scalefactor[ch][sb][part], &sample[ch][sb][0]);
// more pointer crap to fix
};
};
for (sb = bound; sb < sblimit; ++sb) {
read_samples(allocation[0][sb], scalefactor[0][sb][part], sample[0][sb]);
// read_samples(allocation[0][sb], scalefactor[0][sb][part], &sample[0][sb][0]);
// Above needs looking at do something about the pointer
for (idx = 0; idx < 3; ++idx){
sample[1][sb][idx] = sample[0][sb][idx];
@@ -844,25 +840,26 @@ var kjmp2_decode_frame=function(mp2,fr,pcm,outL,outR) {
sum = (sum + 8) >> 4;
if (sum < -32768) {sum = -32768};
if (sum > 32767) {sum = 32767};
//if(ch==0){l.push(sum/33000)};
//if(ch==1){r.push(sum/33000)};
if (ch == 0) { pushL(sum) }
if (ch == 1) { pushR(sum) }
// pcm[((idx << 6) | (j << 1) | ch)+ppcm] =sum;
}
} // end of synthesis channel loop
} // end of synthesis sub-block loop
// adjust PCM output pointer: decoded 3 * 32 = 96 stereo samples
ppcm += 192;
// ppcm += 192;
} // decoding of the granule finished
}
//;[pushSizeL, pushSizeR] = audio.mp2_synthesisLoop(read_samples, allocation, scalefactor, sblimit, mp2, sample, bound, outL, outR)
if (pushSizeL != pushSizeR && pushSizeR > 0) {
throw Error(`Push size mismatch -- U${pushSizeL} != R${pushSizeR}`)
}
serial.println(pushSizeL)
return [frame_size, pushSizeL];
// return [frame_size, 2304];
};
var kjmp2_make_mp2_state=function(){