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Original Commit: r78 | ods15 | 2006-09-29 15:14:28 +0300 (Fri, 29 Sep 2006) | 2 lines

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improove floor codebooks

Originally committed as revision 6483 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Oded Shimon 19 years ago
parent dac7b2f6dd
commit 9127d7c3d4
1 changed files with 56 additions and 19 deletions
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  1. 75
      libavcodec/vorbis_enc.c

75
libavcodec/vorbis_enc.c
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@ -273,14 +273,35 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
venc->sample_rate = avccontext->sample_rate;
venc->blocksize[0] = venc->blocksize[1] = 11;
venc->ncodebooks = 10;
venc->ncodebooks = 15 + 1 + 8;
venc->codebooks = av_malloc(sizeof(codebook_t) * venc->ncodebooks);
// codebook 0 - floor1 book, values 0..255
cb = &venc->codebooks[0];
cb->nentries = 512;
int codebook0[] = { 2, 10, 8, 14, 7, 12, 11, 14, 1, 5, 3, 7, 4, 9, 7, 13, };
int codebook1[] = { 1, 4, 2, 6, 3, 7, 5, 7, };
int codebook2[] = { 1, 5, 7, 21, 5, 8, 9, 21, 10, 9, 12, 20, 20, 16, 20, 20, 4, 8, 9, 20, 6, 8, 9, 20, 11, 11, 13, 20, 20, 15, 17, 20, 9, 11, 14, 20, 8, 10, 15, 20, 11, 13, 15, 20, 20, 20, 20, 20, 20, 20, 20, 20, 13, 20, 20, 20, 18, 18, 20, 20, 20, 20, 20, 20, 3, 6, 8, 20, 6, 7, 9, 20, 10, 9, 12, 20, 20, 20, 20, 20, 5, 7, 9, 20, 6, 6, 9, 20, 10, 9, 12, 20, 20, 20, 20, 20, 8, 10, 13, 20, 8, 9, 12, 20, 11, 10, 12, 20, 20, 20, 20, 20, 18, 20, 20, 20, 15, 17, 18, 20, 18, 17, 18, 20, 20, 20, 20, 20, 7, 10, 12, 20, 8, 9, 11, 20, 14, 13, 14, 20, 20, 20, 20, 20, 6, 9, 12, 20, 7, 8, 11, 20, 12, 11, 13, 20, 20, 20, 20, 20, 9, 11, 15, 20, 8, 10, 14, 20, 12, 11, 14, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 11, 16, 18, 20, 15, 15, 17, 20, 20, 17, 20, 20, 20, 20, 20, 20, 9, 14, 16, 20, 12, 12, 15, 20, 17, 15, 18, 20, 20, 20, 20, 20, 16, 19, 18, 20, 15, 16, 20, 20, 17, 17, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, };
int codebook3[] = { 2, 3, 7, 13, 4, 4, 7, 15, 8, 6, 9, 17, 21, 16, 15, 21, 2, 5, 7, 11, 5, 5, 7, 14, 9, 7, 10, 16, 17, 15, 16, 21, 4, 7, 10, 17, 7, 7, 9, 15, 11, 9, 11, 16, 21, 18, 15, 21, 18, 21, 21, 21, 15, 17, 17, 19, 21, 19, 18, 20, 21, 21, 21, 20, };
int codebook4[] = { 5, 5, 5, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 7, 5, 7, 5, 7, 5, 7, 5, 8, 6, 8, 6, 8, 6, 9, 6, 9, 6, 10, 6, 10, 6, 11, 6, 11, 7, 11, 7, 12, 7, 12, 7, 12, 7, 12, 7, 12, 7, 12, 7, 12, 7, 12, 8, 13, 8, 12, 8, 12, 8, 13, 8, 13, 9, 13, 9, 13, 9, 13, 9, 12, 10, 12, 10, 13, 10, 14, 11, 14, 12, 14, 13, 14, 13, 14, 14, 15, 16, 15, 15, 15, 14, 15, 17, 21, 22, 22, 21, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, };
int codebook5[] = { 2, 5, 5, 4, 5, 4, 5, 4, 5, 4, 6, 5, 6, 5, 6, 5, 6, 5, 7, 5, 7, 6, 8, 6, 8, 6, 8, 6, 9, 6, 9, 6, };
int codebook6[] = { 8, 5, 8, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9, 4, 8, 4, 8, 4, 9, 5, 9, 5, 9, 5, 9, 5, 9, 6, 10, 6, 10, 7, 10, 8, 11, 9, 11, 11, 12, 13, 12, 14, 13, 15, 13, 15, 14, 16, 14, 17, 15, 17, 15, 15, 16, 16, 15, 16, 16, 16, 15, 18, 16, 15, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, };
int codebook7[] = { 1, 5, 5, 5, 5, 5, 5, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 6, 7, 7, 7, 7, 8, 7, 8, 8, 9, 8, 10, 9, 10, 9, };
int codebook8[] = { 4, 3, 4, 3, 4, 4, 5, 4, 5, 4, 5, 5, 6, 5, 6, 5, 7, 5, 7, 6, 7, 6, 8, 7, 8, 7, 8, 7, 9, 8, 9, 9, 9, 9, 10, 10, 10, 11, 9, 12, 9, 12, 9, 15, 10, 14, 9, 13, 10, 13, 10, 12, 10, 12, 10, 13, 10, 12, 11, 13, 11, 14, 12, 13, 13, 14, 14, 13, 14, 15, 14, 16, 13, 13, 14, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, };
int codebook9[] = { 4, 5, 4, 5, 3, 5, 3, 5, 3, 5, 4, 4, 4, 4, 5, 5, 5, };
int codebook10[] = { 3, 3, 4, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 5, 7, 5, 8, 6, 8, 6, 9, 7, 10, 7, 10, 8, 10, 8, 11, 9, 11, };
int codebook11[] = { 3, 7, 3, 8, 3, 10, 3, 8, 3, 9, 3, 8, 4, 9, 4, 9, 5, 9, 6, 10, 6, 9, 7, 11, 7, 12, 9, 13, 10, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, };
int codebook12[] = { 4, 5, 4, 5, 4, 5, 4, 5, 3, 5, 3, 5, 3, 5, 4, 5, 4, };
int codebook13[] = { 4, 2, 4, 2, 5, 3, 5, 4, 6, 6, 6, 7, 7, 8, 7, 8, 7, 8, 7, 9, 8, 9, 8, 9, 8, 10, 8, 11, 9, 12, 9, 12, };
int codebook14[] = { 2, 5, 2, 6, 3, 6, 4, 7, 4, 7, 5, 9, 5, 11, 6, 11, 6, 11, 7, 11, 6, 11, 6, 11, 9, 11, 8, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, };
int codebook_sizes[] = { 16, 8, 256, 64, 128, 32, 96, 32, 96, 17, 32, 78, 17, 32, 78 };
int * codebook_lens[] = { codebook0, codebook1, codebook2, codebook3, codebook4, codebook5, codebook6, codebook7,
codebook8, codebook9, codebook10, codebook11, codebook12, codebook13, codebook14 };
// codebook 0..14 - floor1 book, values 0..255
for (book = 0; book < 15; book++) {
cb = &venc->codebooks[book];
cb->nentries = codebook_sizes[book];
cb->entries = av_malloc(sizeof(cb_entry_t) * cb->nentries);
for (i = 0; i < cb->nentries; i++) cb->entries[i].len = 9;
for (i = 0; i < cb->nentries; i++) cb->entries[i].len = codebook_lens[book][i];
cb->ndimentions = 0;
cb->min = 0.;
cb->delta = 0.;
@ -288,9 +309,10 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
cb->lookup = 0;
cb->quantlist = NULL;
ready_codebook(cb);
}
// codebook 1 - residue classbook, values 0..1, dimentions 4
cb = &venc->codebooks[1];
// codebook 15 - residue classbook, values 0..1, dimentions 4
cb = &venc->codebooks[15];
cb->nentries = 2;
cb->entries = av_malloc(sizeof(cb_entry_t) * cb->nentries);
for (i = 0; i < cb->nentries; i++) cb->entries[i].len = 1;
@ -302,9 +324,9 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
cb->quantlist = NULL;
ready_codebook(cb);
// codebook 2..9 - vector, for the residue, values -32767..32767, dimentions 1
// codebook 16..23 - vector, for the residue, values -32767..32767, dimentions 1
for (book = 0; book < 8; book++) {
cb = &venc->codebooks[2 + book];
cb = &venc->codebooks[16 + book];
cb->nentries = 5;
cb->entries = av_malloc(sizeof(cb_entry_t) * cb->nentries);
for (i = 0; i < cb->nentries; i++) cb->entries[i].len = i == 2 ? 1 : 3;
@ -323,22 +345,37 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
// just 1 floor
fc = &venc->floors[0];
fc->partitions = 13;
fc->partitions = 8;
fc->partition_to_class = av_malloc(sizeof(int) * fc->partitions);
for (i = 0; i < fc->partitions; i++) fc->partition_to_class[i] = 0;
fc->nclasses = 1;
fc->nclasses = 0;
for (i = 0; i < fc->partitions; i++) {
int a[] = {0,1,2,2,3,3,4,4};
fc->partition_to_class[i] = a[i];
fc->nclasses = FFMAX(fc->nclasses, fc->partition_to_class[i]);
}
fc->nclasses++;
fc->classes = av_malloc(sizeof(floor_class_t) * fc->nclasses);
for (i = 0; i < fc->nclasses; i++) {
floor_class_t * c = &fc->classes[i];
int j, books;
c->dim = 2;
c->subclass = 0;
c->masterbook = 0;
int dim[] = {3,4,3,4,3};
int subclass[] = {0,1,1,2,2};
int masterbook[] = {0/*none*/,0,1,2,3};
int * nbooks[] = {
(int[]){ 4 },
(int[]){ 5, 6 },
(int[]){ 7, 8 },
(int[]){ -1, 9, 10, 11 },
(int[]){ -1, 12, 13, 14 },
};
c->dim = dim[i];
c->subclass = subclass[i];
c->masterbook = masterbook[i];
books = (1 << c->subclass);
c->books = av_malloc(sizeof(int) * books);
for (j = 0; j < books; j++) c->books[j] = 0;
for (j = 0; j < books; j++) c->books[j] = nbooks[i][j];
}
fc->multiplier = 1;
fc->multiplier = 2;
fc->rangebits = venc->blocksize[0] - 1;
fc->values = 2;
@ -371,11 +408,11 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
rc->end = 1 << (venc->blocksize[0] - 1);
rc->partition_size = 64;
rc->classifications = 2;
rc->classbook = 1;
rc->classbook = 15;
rc->books = av_malloc(sizeof(int[8]) * rc->classifications);
for (i = 0; i < rc->classifications; i++) {
int j;
for (j = 0; j < 8; j++) rc->books[i][j] = 2 + j;
for (j = 0; j < 8; j++) rc->books[i][j] = 16 + j;
rc->books[i][0] = rc->books[i][1] = rc->books[i][2] = rc->books[i][3] = -1;
}

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