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slightly saner indention 

Originally committed as revision 6525 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-10-02 11:31:52 +00:00
parent 6ab6c7c3cc
commit 35af7a9b27
1 changed files with 137 additions and 81 deletions
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158
libavcodec/vorbis_enc.c
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@ -182,7 +182,8 @@ static void ready_codebook(codebook_t * cb) {
ff_vorbis_len2vlc(cb->lens, cb->codewords, cb->nentries);
if (!cb->lookup) cb->pow2 = cb->dimentions = NULL;
if (!cb->lookup)
cb->pow2 = cb->dimentions = NULL;
else {
int vals = cb_lookup_vals(cb->lookup, cb->ndimentions, cb->nentries);
cb->dimentions = av_malloc(sizeof(float) * cb->nentries * cb->ndimentions);
@ -193,18 +194,20 @@ static void ready_codebook(codebook_t * cb) {
int div = 1;
for (j = 0; j < cb->ndimentions; j++) {
int off;
if (cb->lookup == 1) off = (i / div) % vals; // lookup type 1
else off = i * cb->ndimentions + j; // lookup type 2
if (cb->lookup == 1)
off = (i / div) % vals; // lookup type 1
else
off = i * cb->ndimentions + j; // lookup type 2
cb->dimentions[i * cb->ndimentions + j] = last + cb->min + cb->quantlist[off] * cb->delta;
if (cb->seq_p) last = cb->dimentions[i * cb->ndimentions + j];
if (cb->seq_p)
last = cb->dimentions[i * cb->ndimentions + j];
cb->pow2[i] += cb->dimentions[i * cb->ndimentions + j]*cb->dimentions[i * cb->ndimentions + j];
div *= vals;
}
cb->pow2[i] /= 2.;
}
}
}
static void ready_residue(residue_t * rc, venc_context_t * venc) {
@ -214,7 +217,8 @@ static void ready_residue(residue_t * rc, venc_context_t * venc) {
for (i = 0; i < rc->classifications; i++) {
int j;
codebook_t * cb;
for (j = 0; j < 8; j++) if (rc->books[i][j] != -1) break;
for (j = 0; j < 8; j++)
if (rc->books[i][j] != -1) break;
if (j == 8) continue; // zero
cb = &venc->codebooks[rc->books[i][j]];
assert(cb->ndimentions >= 2);
@ -224,9 +228,11 @@ static void ready_residue(residue_t * rc, venc_context_t * venc) {
float a;
if (!cb->lens[j]) continue;
a = fabs(cb->dimentions[j * cb->ndimentions]);
if (a > rc->maxes[i][0]) rc->maxes[i][0] = a;
if (a > rc->maxes[i][0])
rc->maxes[i][0] = a;
a = fabs(cb->dimentions[j * cb->ndimentions + 1]);
if (a > rc->maxes[i][1]) rc->maxes[i][1] = a;
if (a > rc->maxes[i][1])
rc->maxes[i][1] = a;
}
}
// small bias
@ -270,7 +276,8 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
if (cb->lookup) {
vals = cb_lookup_vals(cb->lookup, cb->ndimentions, cb->nentries);
cb->quantlist = av_malloc(sizeof(int) * vals);
for (i = 0; i < vals; i++) cb->quantlist[i] = cvectors[book].quant[i];
for (i = 0; i < vals; i++)
cb->quantlist[i] = cvectors[book].quant[i];
} else {
cb->quantlist = NULL;
}
@ -300,7 +307,8 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
c->masterbook = floor_classes[i].masterbook;
books = (1 << c->subclass);
c->books = av_malloc(sizeof(int) * books);
for (j = 0; j < books; j++) c->books[j] = floor_classes[i].nbooks[j];
for (j = 0; j < books; j++)
c->books[j] = floor_classes[i].nbooks[j];
}
fc->multiplier = 2;
fc->rangebits = venc->log2_blocksize[0] - 1;
@ -358,7 +366,8 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
mc = &venc->mappings[0];
mc->submaps = 1;
mc->mux = av_malloc(sizeof(int) * venc->channels);
for (i = 0; i < venc->channels; i++) mc->mux[i] = 0;
for (i = 0; i < venc->channels; i++)
mc->mux[i] = 0;
mc->floor = av_malloc(sizeof(int) * mc->submaps);
mc->residue = av_malloc(sizeof(int) * mc->submaps);
for (i = 0; i < mc->submaps; i++) {
@ -411,8 +420,10 @@ static void put_codebook_header(PutBitContext * pb, codebook_t * cb) {
put_bits(pb, 16, cb->ndimentions);
put_bits(pb, 24, cb->nentries);
for (i = 1; i < cb->nentries; i++) if (cb->lens[i] < cb->lens[i-1]) break;
if (i == cb->nentries) ordered = 1;
for (i = 1; i < cb->nentries; i++)
if (cb->lens[i] < cb->lens[i-1]) break;
if (i == cb->nentries)
ordered = 1;
put_bits(pb, 1, ordered);
if (ordered) {
@ -421,15 +432,18 @@ static void put_codebook_header(PutBitContext * pb, codebook_t * cb) {
i = 0;
while (i < cb->nentries) {
int j;
for (j = 0; j+i < cb->nentries; j++) if (cb->lens[j+i] != len) break;
for (j = 0; j+i < cb->nentries; j++)
if (cb->lens[j+i] != len) break;
put_bits(pb, ilog(cb->nentries - i), j);
i += j;
len++;
}
} else {
int sparse = 0;
for (i = 0; i < cb->nentries; i++) if (!cb->lens[i]) break;
if (i != cb->nentries) sparse = 1;
for (i = 0; i < cb->nentries; i++)
if (!cb->lens[i]) break;
if (i != cb->nentries)
sparse = 1;
put_bits(pb, 1, sparse);
for (i = 0; i < cb->nentries; i++) {
@ -443,7 +457,8 @@ static void put_codebook_header(PutBitContext * pb, codebook_t * cb) {
int tmp = cb_lookup_vals(cb->lookup, cb->ndimentions, cb->nentries);
int bits = ilog(cb->quantlist[0]);
for (i = 1; i < tmp; i++) bits = FFMAX(bits, ilog(cb->quantlist[i]));
for (i = 1; i < tmp; i++)
bits = FFMAX(bits, ilog(cb->quantlist[i]));
put_float(pb, cb->min);
put_float(pb, cb->delta);
@ -451,7 +466,8 @@ static void put_codebook_header(PutBitContext * pb, codebook_t * cb) {
put_bits(pb, 4, bits - 1);
put_bits(pb, 1, cb->seq_p);
for (i = 0; i < tmp; i++) put_bits(pb, bits, cb->quantlist[i]);
for (i = 0; i < tmp; i++)
put_bits(pb, bits, cb->quantlist[i]);
}
}
@ -462,7 +478,8 @@ static void put_floor_header(PutBitContext * pb, floor_t * fc) {
put_bits(pb, 5, fc->partitions);
for (i = 0; i < fc->partitions; i++) put_bits(pb, 4, fc->partition_to_class[i]);
for (i = 0; i < fc->partitions; i++)
put_bits(pb, 4, fc->partition_to_class[i]);
for (i = 0; i < fc->nclasses; i++) {
int j, books;
@ -470,17 +487,20 @@ static void put_floor_header(PutBitContext * pb, floor_t * fc) {
put_bits(pb, 3, fc->classes[i].dim - 1);
put_bits(pb, 2, fc->classes[i].subclass);
if (fc->classes[i].subclass) put_bits(pb, 8, fc->classes[i].masterbook);
if (fc->classes[i].subclass)
put_bits(pb, 8, fc->classes[i].masterbook);
books = (1 << fc->classes[i].subclass);
for (j = 0; j < books; j++) put_bits(pb, 8, fc->classes[i].books[j] + 1);
for (j = 0; j < books; j++)
put_bits(pb, 8, fc->classes[i].books[j] + 1);
}
put_bits(pb, 2, fc->multiplier - 1);
put_bits(pb, 4, fc->rangebits);
for (i = 2; i < fc->values; i++) put_bits(pb, fc->rangebits, fc->list[i].x);
for (i = 2; i < fc->values; i++)
put_bits(pb, fc->rangebits, fc->list[i].x);
}
static void put_residue_header(PutBitContext * pb, residue_t * rc) {
@ -496,12 +516,14 @@ static void put_residue_header(PutBitContext * pb, residue_t * rc) {
for (i = 0; i < rc->classifications; i++) {
int j, tmp = 0;
for (j = 0; j < 8; j++) tmp |= (rc->books[i][j] != -1) << j;
for (j = 0; j < 8; j++)
tmp |= (rc->books[i][j] != -1) << j;
put_bits(pb, 3, tmp & 7);
put_bits(pb, 1, tmp > 7);
if (tmp > 7) put_bits(pb, 5, tmp >> 3);
if (tmp > 7)
put_bits(pb, 5, tmp >> 3);
}
for (i = 0; i < rc->classifications; i++) {
@ -522,7 +544,8 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
// identification header
init_put_bits(&pb, p, buffer_len);
put_bits(&pb, 8, 1); //magic
for (i = 0; "vorbis"[i]; i++) put_bits(&pb, 8, "vorbis"[i]);
for (i = 0; "vorbis"[i]; i++)
put_bits(&pb, 8, "vorbis"[i]);
put_bits(&pb, 32, 0); // version
put_bits(&pb, 8, venc->channels);
put_bits(&pb, 32, venc->sample_rate);
@ -541,7 +564,8 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
// comment header
init_put_bits(&pb, p, buffer_len);
put_bits(&pb, 8, 3); //magic
for (i = 0; "vorbis"[i]; i++) put_bits(&pb, 8, "vorbis"[i]);
for (i = 0; "vorbis"[i]; i++)
put_bits(&pb, 8, "vorbis"[i]);
put_bits(&pb, 32, 0); // vendor length TODO
put_bits(&pb, 32, 0); // amount of comments
put_bits(&pb, 1, 1); // framing
@ -554,11 +578,13 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
// setup header
init_put_bits(&pb, p, buffer_len);
put_bits(&pb, 8, 5); //magic
for (i = 0; "vorbis"[i]; i++) put_bits(&pb, 8, "vorbis"[i]);
for (i = 0; "vorbis"[i]; i++)
put_bits(&pb, 8, "vorbis"[i]);
// codebooks
put_bits(&pb, 8, venc->ncodebooks - 1);
for (i = 0; i < venc->ncodebooks; i++) put_codebook_header(&pb, &venc->codebooks[i]);
for (i = 0; i < venc->ncodebooks; i++)
put_codebook_header(&pb, &venc->codebooks[i]);
// time domain, reserved, zero
put_bits(&pb, 6, 0);
@ -566,11 +592,13 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
// floors
put_bits(&pb, 6, venc->nfloors - 1);
for (i = 0; i < venc->nfloors; i++) put_floor_header(&pb, &venc->floors[i]);
for (i = 0; i < venc->nfloors; i++)
put_floor_header(&pb, &venc->floors[i]);
// residues
put_bits(&pb, 6, venc->nresidues - 1);
for (i = 0; i < venc->nresidues; i++) put_residue_header(&pb, &venc->residues[i]);
for (i = 0; i < venc->nresidues; i++)
put_residue_header(&pb, &venc->residues[i]);
// mappings
put_bits(&pb, 6, venc->nmappings - 1);
@ -580,7 +608,8 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
put_bits(&pb, 16, 0); // mapping type
put_bits(&pb, 1, mc->submaps > 1);
if (mc->submaps > 1) put_bits(&pb, 4, mc->submaps - 1);
if (mc->submaps > 1)
put_bits(&pb, 4, mc->submaps - 1);
put_bits(&pb, 1, !!mc->coupling_steps);
if (mc->coupling_steps) {
@ -593,7 +622,9 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
put_bits(&pb, 2, 0); // reserved
if (mc->submaps > 1) for (j = 0; j < venc->channels; j++) put_bits(&pb, 4, mc->mux[j]);
if (mc->submaps > 1)
for (j = 0; j < venc->channels; j++)
put_bits(&pb, 4, mc->mux[j]);
for (j = 0; j < mc->submaps; j++) {
put_bits(&pb, 8, 0); // reserved time configuration
@ -638,7 +669,8 @@ static float get_floor_average(floor_t * fc, float * coeffs, int i) {
int j;
float average = 0;
for (j = begin; j < end; j++) average += fabs(coeffs[j]);
for (j = begin; j < end; j++)
average += fabs(coeffs[j]);
return average / (end - begin);
}
@ -647,7 +679,10 @@ static void floor_fit(venc_context_t * venc, floor_t * fc, float * coeffs, uint_
int i;
float tot_average = 0.;
float averages[fc->values];
for (i = 0; i < fc->values; i++) tot_average += averages[i] = get_floor_average(fc, coeffs, i);
for (i = 0; i < fc->values; i++){
averages[i] = get_floor_average(fc, coeffs, i);
tot_average += averages[i];
}
tot_average /= fc->values;
tot_average /= venc->quality;
@ -657,7 +692,8 @@ static void floor_fit(venc_context_t * venc, floor_t * fc, float * coeffs, uint_
int j;
average *= pow(tot_average / average, 0.5) * pow(1.25, position/200.); // MAGIC!
for (j = 0; j < range - 1; j++) if (ff_vorbis_floor1_inverse_db_table[j * fc->multiplier] > average) break;
for (j = 0; j < range - 1; j++)
if (ff_vorbis_floor1_inverse_db_table[j * fc->multiplier] > average) break;
posts[fc->list[i].sort] = j;
}
}
@ -693,11 +729,15 @@ static void floor_encode(venc_context_t * venc, floor_t * fc, PutBitContext * pb
if (!coded[fc->list[i].high]) coded[fc->list[i].high] = -1;
}
if (posts[i] > predicted) {
if (posts[i] - predicted > room) coded[i] = posts[i] - predicted + lowroom;
else coded[i] = (posts[i] - predicted) << 1;
if (posts[i] - predicted > room)
coded[i] = posts[i] - predicted + lowroom;
else
coded[i] = (posts[i] - predicted) << 1;
} else {
if (predicted - posts[i] > room) coded[i] = predicted - posts[i] + highroom - 1;
else coded[i] = ((predicted - posts[i]) << 1) - 1;
if (predicted - posts[i] > room)
coded[i] = predicted - posts[i] + highroom - 1;
else
coded[i] = ((predicted - posts[i]) << 1) - 1;
}
}
@ -712,7 +752,8 @@ static void floor_encode(venc_context_t * venc, floor_t * fc, PutBitContext * pb
int l;
for (l = 0; l < csub; l++) {
int maxval = 1;
if (c->books[l] != -1) maxval = venc->codebooks[c->books[l]].nentries;
if (c->books[l] != -1)
maxval = venc->codebooks[c->books[l]].nentries;
// coded could be -1, but this still works, cause thats 0
if (coded[counter + k] < maxval) break;
}
@ -743,7 +784,8 @@ static float * put_vector(codebook_t * book, PutBitContext * pb, float * num) {
float * vec = book->dimentions + i * book->ndimentions, d = book->pow2[i];
int j;
if (!book->lens[i]) continue;
for (j = 0; j < book->ndimentions; j++) d -= vec[j] * num[j];
for (j = 0; j < book->ndimentions; j++)
d -= vec[j] * num[j];
if (distance > d) {
entry = i;
distance = d;
@ -780,7 +822,8 @@ static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext
for (pass = 0; pass < 8; pass++) {
p = 0;
while (p < partitions) {
if (pass == 0) for (j = 0; j < channels; j++) {
if (pass == 0)
for (j = 0; j < channels; j++) {
codebook_t * book = &venc->codebooks[rc->classbook];
int entry = 0;
for (i = 0; i < classwords; i++) {
@ -803,7 +846,8 @@ static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext
for (k = 0; k < psize; k += book->ndimentions) {
float * a = put_vector(book, pb, &buf[k]);
int l;
for (l = 0; l < book->ndimentions; l++) buf[k + l] -= a[l];
for (l = 0; l < book->ndimentions; l++)
buf[k + l] -= a[l];
}
} else {
int s = rc->begin + p * psize, a1, b1;
@ -815,12 +859,18 @@ static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext
float vec[book->ndimentions], * pv = vec;
for (dim = book->ndimentions; dim--; ) {
*pv++ = coeffs[a2 + b2];
if ((a2 += samples) == s) { a2=0; b2++; }
if ((a2 += samples) == s) {
a2=0;
b2++;
}
}
pv = put_vector(book, pb, vec);
for (dim = book->ndimentions; dim--; ) {
coeffs[a1 + b1] -= *pv++;
if ((a1 += samples) == s) { a1=0; b1++; }
if ((a1 += samples) == s) {
a1=0;
b1++;
}
}
}
}
@ -891,8 +941,10 @@ static int vorbis_encode_init(AVCodecContext * avccontext)
create_vorbis_context(venc, avccontext);
if (avccontext->flags & CODEC_FLAG_QSCALE) venc->quality = avccontext->global_quality / (float)FF_QP2LAMBDA / 10.;
else venc->quality = 1.;
if (avccontext->flags & CODEC_FLAG_QSCALE)
venc->quality = avccontext->global_quality / (float)FF_QP2LAMBDA / 10.;
else
venc->quality = 1.;
venc->quality *= venc->quality;
avccontext->extradata_size = put_main_header(venc, (uint8_t**)&avccontext->extradata);
@ -966,7 +1018,8 @@ static int vorbis_encode_close(AVCodecContext * avccontext)
venc_context_t * venc = avccontext->priv_data;
int i;
if (venc->codebooks) for (i = 0; i < venc->ncodebooks; i++) {
if (venc->codebooks)
for (i = 0; i < venc->ncodebooks; i++) {
av_freep(&venc->codebooks[i].lens);
av_freep(&venc->codebooks[i].codewords);
av_freep(&venc->codebooks[i].quantlist);
@ -975,7 +1028,8 @@ static int vorbis_encode_close(AVCodecContext * avccontext)
}
av_freep(&venc->codebooks);
if (venc->floors) for (i = 0; i < venc->nfloors; i++) {
if (venc->floors)
for (i = 0; i < venc->nfloors; i++) {
int j;
av_freep(&venc->floors[i].classes);
if (venc->floors[i].classes)
@ -986,13 +1040,15 @@ static int vorbis_encode_close(AVCodecContext * avccontext)
}
av_freep(&venc->floors);
if (venc->residues) for (i = 0; i < venc->nresidues; i++) {
if (venc->residues)
for (i = 0; i < venc->nresidues; i++) {
av_freep(&venc->residues[i].books);
av_freep(&venc->residues[i].maxes);
}
av_freep(&venc->residues);
if (venc->mappings) for (i = 0; i < venc->nmappings; i++) {
if (venc->mappings)
for (i = 0; i < venc->nmappings; i++) {
av_freep(&venc->mappings[i].mux);
av_freep(&venc->mappings[i].floor);
av_freep(&venc->mappings[i].residue);