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Original Commit: r59 | ods15 | 2006-09-24 17:40:40 +0300 (Sun, 24 Sep 2006) | 2 lines

Browse Source 
cosmetic, reorganize

Originally committed as revision 6464 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Oded Shimon 19 years ago
parent 8a202cb3a7
commit 6f17618af9
1 changed files with 68 additions and 68 deletions
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  1. 136
      libavcodec/vorbis_enc.c

136
libavcodec/vorbis_enc.c
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@ -598,23 +598,65 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
return p - *out;
}
static int vorbis_encode_init(AVCodecContext * avccontext)
{
venc_context_t * venc = avccontext->priv_data;
create_vorbis_context(venc, avccontext);
//if (avccontext->flags & CODEC_FLAG_QSCALE) avccontext->global_quality / (float)FF_QP2LAMBDA); else avccontext->bit_rate;
//if(avccontext->cutoff > 0) cfreq = avccontext->cutoff / 1000.0;
static float * put_vector(codebook_t * book, PutBitContext * pb, float * num) {
int i;
int entry = -1;
float distance = 0;
assert(book->dimentions);
for (i = 0; i < book->nentries; i++) {
float d = 0.;
int j;
for (j = 0; j < book->ndimentions; j++) {
float a = (book->dimentions[i * book->ndimentions + j] - num[j]);
d += a*a;
}
if (entry == -1 || distance > d) {
entry = i;
distance = d;
}
}
put_bits(pb, book->entries[entry].len, book->entries[entry].codeword);
return &book->dimentions[entry * book->ndimentions];
}
avccontext->extradata_size = put_main_header(venc, (uint8_t**)&avccontext->extradata);
static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext * pb, float * coeffs, int samples, int channels) {
int pass, i, j, p, k;
int psize = rc->partition_size;
int partitions = (rc->end - rc->begin) / psize;
int classes[channels][partitions];
int classwords = venc->codebooks[rc->classbook].ndimentions;
avccontext->frame_size = 1 << (venc->blocksize[0] - 1);
for (pass = 0; pass < 8; pass++) {
p = 0;
while (p < partitions) {
if (pass == 0) for (j = 0; j < channels; j++) {
codebook_t * book = &venc->codebooks[rc->classbook];
int entry = 0;
put_bits(pb, book->entries[entry].len, book->entries[entry].codeword);
for (i = classwords; i--; ) {
classes[j][p + i] = entry % rc->classifications;
entry /= rc->classifications;
}
}
for (i = 0; i < classwords && p < partitions; i++, p++) {
for (j = 0; j < channels; j++) {
int nbook = rc->books[classes[j][p]][pass];
codebook_t * book = &venc->codebooks[nbook];
float * buf = coeffs + samples*j + rc->begin + p*psize;
if (nbook == -1) continue;
avccontext->coded_frame = avcodec_alloc_frame();
avccontext->coded_frame->key_frame = 1;
assert(rc->type == 0);
assert(!(psize % book->ndimentions));
return 0;
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];
}
}
}
}
}
}
static int window(venc_context_t * venc, signed short * audio, int samples) {
@ -667,65 +709,23 @@ static int window(venc_context_t * venc, signed short * audio, int samples) {
return 1;
}
static float * put_vector(codebook_t * book, PutBitContext * pb, float * num) {
int i;
int entry = -1;
float distance = 0;
assert(book->dimentions);
for (i = 0; i < book->nentries; i++) {
float d = 0.;
int j;
for (j = 0; j < book->ndimentions; j++) {
float a = (book->dimentions[i * book->ndimentions + j] - num[j]);
d += a*a;
}
if (entry == -1 || distance > d) {
entry = i;
distance = d;
}
}
put_bits(pb, book->entries[entry].len, book->entries[entry].codeword);
return &book->dimentions[entry * book->ndimentions];
}
static int vorbis_encode_init(AVCodecContext * avccontext)
{
venc_context_t * venc = avccontext->priv_data;
static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext * pb, float * coeffs, int samples, int channels) {
int pass, i, j, p, k;
int psize = rc->partition_size;
int partitions = (rc->end - rc->begin) / psize;
int classes[channels][partitions];
int classwords = venc->codebooks[rc->classbook].ndimentions;
create_vorbis_context(venc, avccontext);
for (pass = 0; pass < 8; pass++) {
p = 0;
while (p < partitions) {
if (pass == 0) for (j = 0; j < channels; j++) {
codebook_t * book = &venc->codebooks[rc->classbook];
int entry = 0;
put_bits(pb, book->entries[entry].len, book->entries[entry].codeword);
for (i = classwords; i--; ) {
classes[j][p + i] = entry % rc->classifications;
entry /= rc->classifications;
}
}
for (i = 0; i < classwords && p < partitions; i++, p++) {
for (j = 0; j < channels; j++) {
int nbook = rc->books[classes[j][p]][pass];
codebook_t * book = &venc->codebooks[nbook];
float * buf = coeffs + samples*j + rc->begin + p*psize;
if (nbook == -1) continue;
//if (avccontext->flags & CODEC_FLAG_QSCALE) avccontext->global_quality / (float)FF_QP2LAMBDA); else avccontext->bit_rate;
//if(avccontext->cutoff > 0) cfreq = avccontext->cutoff / 1000.0;
assert(rc->type == 0);
assert(!(psize % book->ndimentions));
avccontext->extradata_size = put_main_header(venc, (uint8_t**)&avccontext->extradata);
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];
}
}
}
}
}
avccontext->frame_size = 1 << (venc->blocksize[0] - 1);
avccontext->coded_frame = avcodec_alloc_frame();
avccontext->coded_frame->key_frame = 1;
return 0;
}
static int vorbis_encode_frame(AVCodecContext * avccontext, unsigned char * packets, int buf_size, void *data)

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