X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fvorbis_enc.c;h=61f78b576f1141483784d014ab21d5e01ee7a71c;hb=96ff02f1b4f382936b9e212a98d80d0b92d5058c;hp=3bc93a644db7f050df910a70f0fe41a44c97a903;hpb=6f5be556dd204e357f14effc3e0a8c0e247c229b;p=ffmpeg diff --git a/libavcodec/vorbis_enc.c b/libavcodec/vorbis_enc.c index 3bc93a644db..61f78b576f1 100644 --- a/libavcodec/vorbis_enc.c +++ b/libavcodec/vorbis_enc.c @@ -1,81 +1,72 @@ /* * copyright (c) 2006 Oded Shimon * - * This library is free software; you can redistribute it and/or + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. + * version 2.1 of the License, or (at your option) any later version. * - * This library is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file vorbis_enc.c + * @file libavcodec/vorbis_enc.c * Native Vorbis encoder. * @author Oded Shimon */ +#include #include "avcodec.h" - -#define BITSTREAM_H // don't include this -typedef int VLC; -typedef int GetBitContext; +#include "dsputil.h" #include "vorbis.h" +#include "vorbis_enc_data.h" + +#define BITSTREAM_WRITER_LE +#include "put_bits.h" #undef NDEBUG #include -//#define ALT_BITSTREAM_WRITER -//#include "bitstream.h" - -typedef struct { - int len; - uint32_t codeword; -} cb_entry_t; - typedef struct { int nentries; - cb_entry_t * entries; + uint8_t *lens; + uint32_t *codewords; int ndimentions; float min; float delta; int seq_p; int lookup; - int * quantlist; - float * dimentions; -} codebook_t; + int *quantlist; + float *dimentions; + float *pow2; +} vorbis_enc_codebook; typedef struct { int dim; int subclass; int masterbook; - int * books; -} floor_class_t; - -typedef struct { - int x; - int low; - int high; - int sort; -} floor_entry_t; + int *books; +} vorbis_enc_floor_class; typedef struct { int partitions; - int * partition_to_class; + int *partition_to_class; int nclasses; - floor_class_t * classes; + vorbis_enc_floor_class *classes; int multiplier; int rangebits; int values; - floor_entry_t * list; -} floor_t; + vorbis_floor1_entry *list; +} vorbis_enc_floor; typedef struct { int type; @@ -84,394 +75,322 @@ typedef struct { int partition_size; int classifications; int classbook; - int (*books)[8]; -} residue_t; + int8_t (*books)[8]; + float (*maxes)[2]; +} vorbis_enc_residue; typedef struct { int submaps; - int * mux; - int * floor; - int * residue; + int *mux; + int *floor; + int *residue; int coupling_steps; - int * magnitude; - int * angle; -} mapping_t; + int *magnitude; + int *angle; +} vorbis_enc_mapping; typedef struct { int blockflag; int mapping; -} vorbis_mode_t; +} vorbis_enc_mode; typedef struct { int channels; int sample_rate; - int blocksize[2]; // in (1<total = buffer_len * 8; - pb->total_pos = 0; - pb->pos = 0; - pb->buf_ptr = buf; -} - -static void put_bits(PutBitContext * pb, int bits, uint64_t val) { - if ((pb->total_pos += bits) >= pb->total) return; - if (!bits) return; - if (pb->pos) { - if (pb->pos > bits) { - *pb->buf_ptr |= val << (8 - pb->pos); - pb->pos -= bits; - bits = 0; - } else { - *pb->buf_ptr++ |= (val << (8 - pb->pos)) & 0xFF; - val >>= pb->pos; - bits -= pb->pos; - pb->pos = 0; - } - } - for (; bits >= 8; bits -= 8) { - *pb->buf_ptr++ = val & 0xFF; - val >>= 8; - } - if (bits) { - *pb->buf_ptr = val; - pb->pos = 8 - bits; - } -} + vorbis_enc_mode *modes; -static inline void flush_put_bits(PutBitContext * pb) { -} + int64_t sample_count; +} vorbis_enc_context; -static inline int put_bits_count(PutBitContext * pb) { - return pb->total_pos; +static inline void put_codeword(PutBitContext *pb, vorbis_enc_codebook *cb, + int entry) +{ + assert(entry >= 0); + assert(entry < cb->nentries); + assert(cb->lens[entry]); + put_bits(pb, cb->lens[entry], cb->codewords[entry]); } -static int cb_lookup_vals(int lookup, int dimentions, int entries) { - if (lookup == 1) { - int tmp, i; - for (tmp = 0; ; tmp++) { - int n = 1; - for (i = 0; i < dimentions; i++) n *= tmp; - if (n > entries) break; - } - return tmp - 1; - } else if (lookup == 2) return dimentions * entries; +static int cb_lookup_vals(int lookup, int dimentions, int entries) +{ + if (lookup == 1) + return ff_vorbis_nth_root(entries, dimentions); + else if (lookup == 2) + return dimentions *entries; return 0; } -static void ready_codebook(codebook_t * cb) { - int h[33] = { 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }; +static void ready_codebook(vorbis_enc_codebook *cb) +{ int i; - for (i = 0; i < cb->nentries; i++) { - cb_entry_t * e = &cb->entries[i]; - int j = 0; - if (h[0]) h[0] = 0; - else { - for (j = e->len; j; j--) - if (h[j]) break; - assert(j); - } - e->codeword = h[j]; - h[j] = 0; - for (j++; j <= e->len; j++) h[j] = e->codeword | (1 << (j - 1)); - } - for (i = 0; i < 33; i++) assert(!h[i]); + ff_vorbis_len2vlc(cb->lens, cb->codewords, cb->nentries); - if (!cb->lookup) cb->dimentions = NULL; - else { + 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); + cb->pow2 = av_mallocz(sizeof(float) * cb->nentries); for (i = 0; i < cb->nentries; i++) { float last = 0; int j; 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_floor(floor_t * fc) { +static void ready_residue(vorbis_enc_residue *rc, vorbis_enc_context *venc) +{ int i; - fc->list[0].sort = 0; - fc->list[1].sort = 1; - for (i = 2; i < fc->values; i++) { + assert(rc->type == 2); + rc->maxes = av_mallocz(sizeof(float[2]) * rc->classifications); + for (i = 0; i < rc->classifications; i++) { int j; - fc->list[i].low = 0; - fc->list[i].high = 1; - fc->list[i].sort = i; - for (j = 2; j < i; j++) { - int tmp = fc->list[j].x; - if (tmp < fc->list[i].x) { - if (tmp > fc->list[fc->list[i].low].x) fc->list[i].low = j; - } else { - if (tmp < fc->list[fc->list[i].high].x) fc->list[i].high = j; - } + vorbis_enc_codebook * cb; + for (j = 0; j < 8; j++) + if (rc->books[i][j] != -1) + break; + if (j == 8) // zero + continue; + cb = &venc->codebooks[rc->books[i][j]]; + assert(cb->ndimentions >= 2); + assert(cb->lookup); + + for (j = 0; j < cb->nentries; j++) { + 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; + a = fabs(cb->dimentions[j * cb->ndimentions + 1]); + if (a > rc->maxes[i][1]) + rc->maxes[i][1] = a; } } - for (i = 0; i < fc->values - 1; i++) { - int j; - for (j = i + 1; j < fc->values; j++) { - if (fc->list[fc->list[i].sort].x > fc->list[fc->list[j].sort].x) { - int tmp = fc->list[i].sort; - fc->list[i].sort = fc->list[j].sort; - fc->list[j].sort = tmp; - } - } + // small bias + for (i = 0; i < rc->classifications; i++) { + rc->maxes[i][0] += 0.8; + rc->maxes[i][1] += 0.8; } } -static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccontext) { - codebook_t * cb; - floor_t * fc; - residue_t * rc; - mapping_t * mc; +static void create_vorbis_context(vorbis_enc_context *venc, + AVCodecContext *avccontext) +{ + vorbis_enc_floor *fc; + vorbis_enc_residue *rc; + vorbis_enc_mapping *mc; int i, book; - venc->channels = avccontext->channels; + venc->channels = avccontext->channels; venc->sample_rate = avccontext->sample_rate; - venc->blocksize[0] = venc->blocksize[1] = 11; - - venc->ncodebooks = 15 + 1 + 8; - venc->codebooks = av_malloc(sizeof(codebook_t) * venc->ncodebooks); - - 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 }; + venc->log2_blocksize[0] = venc->log2_blocksize[1] = 11; - // 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 = codebook_lens[book][i]; - cb->ndimentions = 0; - cb->min = 0.; - cb->delta = 0.; - cb->seq_p = 0; - cb->lookup = 0; - cb->quantlist = NULL; - ready_codebook(cb); - } + venc->ncodebooks = FF_ARRAY_ELEMS(cvectors); + venc->codebooks = av_malloc(sizeof(vorbis_enc_codebook) * venc->ncodebooks); - // 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; - cb->ndimentions = 4; - cb->min = 0.; - cb->delta = 0.; - cb->seq_p = 0; - cb->lookup = 0; - cb->quantlist = NULL; - ready_codebook(cb); - - // codebook 16..23 - vector, for the residue, values -32767..32767, dimentions 1 - for (book = 0; book < 8; 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; - cb->ndimentions = 1; - cb->delta = 1 << ((7 - book) * 2); - cb->min = -cb->delta*2; - cb->seq_p = 0; - cb->lookup = 1; - cb->quantlist = av_malloc(sizeof(int) * cb_lookup_vals(cb->lookup, cb->ndimentions, cb->nentries)); - for (i = 0; i < cb->nentries; i++) cb->quantlist[i] = i; + // codebook 0..14 - floor1 book, values 0..255 + // codebook 15 residue masterbook + // codebook 16..29 residue + for (book = 0; book < venc->ncodebooks; book++) { + vorbis_enc_codebook *cb = &venc->codebooks[book]; + int vals; + cb->ndimentions = cvectors[book].dim; + cb->nentries = cvectors[book].real_len; + cb->min = cvectors[book].min; + cb->delta = cvectors[book].delta; + cb->lookup = cvectors[book].lookup; + cb->seq_p = 0; + + cb->lens = av_malloc(sizeof(uint8_t) * cb->nentries); + cb->codewords = av_malloc(sizeof(uint32_t) * cb->nentries); + memcpy(cb->lens, cvectors[book].clens, cvectors[book].len); + memset(cb->lens + cvectors[book].len, 0, cb->nentries - cvectors[book].len); + + 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]; + } else { + cb->quantlist = NULL; + } ready_codebook(cb); } venc->nfloors = 1; - venc->floors = av_malloc(sizeof(floor_t) * venc->nfloors); + venc->floors = av_malloc(sizeof(vorbis_enc_floor) * venc->nfloors); // just 1 floor fc = &venc->floors[0]; - fc->partitions = 8; + fc->partitions = 8; fc->partition_to_class = av_malloc(sizeof(int) * fc->partitions); - fc->nclasses = 0; + fc->nclasses = 0; for (i = 0; i < fc->partitions; i++) { - int a[] = {0,1,2,2,3,3,4,4}; + static const 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); + fc->classes = av_malloc(sizeof(vorbis_enc_floor_class) * fc->nclasses); for (i = 0; i < fc->nclasses; i++) { - floor_class_t * c = &fc->classes[i]; + vorbis_enc_floor_class * c = &fc->classes[i]; int j, books; - 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] = nbooks[i][j]; + c->dim = floor_classes[i].dim; + c->subclass = floor_classes[i].subclass; + 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]; } fc->multiplier = 2; - fc->rangebits = venc->blocksize[0] - 1; + fc->rangebits = venc->log2_blocksize[0] - 1; fc->values = 2; for (i = 0; i < fc->partitions; i++) fc->values += fc->classes[fc->partition_to_class[i]].dim; - fc->list = av_malloc(sizeof(floor_entry_t) * fc->values); + fc->list = av_malloc(sizeof(vorbis_floor1_entry) * fc->values); fc->list[0].x = 0; fc->list[1].x = 1 << fc->rangebits; for (i = 2; i < fc->values; i++) { - /*int a = i - 1; - int g = ilog(a); - assert(g <= fc->rangebits); - a ^= 1 << (g-1); - g = 1 << (fc->rangebits - g); - fc->list[i].x = g + a*2*g;*/ - //int a[] = {14, 4, 58, 2, 8, 28, 90}; - int a[] = {93,23,372,6,46,186,750,14,33,65,130,260,556,3,10,18,28,39,55,79,111,158,220,312,464,650,850}; + static const int a[] = { + 93, 23,372, 6, 46,186,750, 14, 33, 65, + 130,260,556, 3, 10, 18, 28, 39, 55, 79, + 111,158,220,312,464,650,850 + }; fc->list[i].x = a[i - 2]; } - ready_floor(fc); + ff_vorbis_ready_floor1_list(fc->list, fc->values); venc->nresidues = 1; - venc->residues = av_malloc(sizeof(residue_t) * venc->nresidues); + venc->residues = av_malloc(sizeof(vorbis_enc_residue) * venc->nresidues); // single residue rc = &venc->residues[0]; - rc->type = 0; - rc->begin = 0; - rc->end = 1 << (venc->blocksize[0] - 1); - rc->partition_size = 64; - rc->classifications = 2; - 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] = 16 + j; - rc->books[i][0] = rc->books[i][1] = rc->books[i][2] = rc->books[i][3] = -1; + rc->type = 2; + rc->begin = 0; + rc->end = 1600; + rc->partition_size = 32; + rc->classifications = 10; + rc->classbook = 15; + rc->books = av_malloc(sizeof(*rc->books) * rc->classifications); + { + static const int8_t a[10][8] = { + { -1, -1, -1, -1, -1, -1, -1, -1, }, + { -1, -1, 16, -1, -1, -1, -1, -1, }, + { -1, -1, 17, -1, -1, -1, -1, -1, }, + { -1, -1, 18, -1, -1, -1, -1, -1, }, + { -1, -1, 19, -1, -1, -1, -1, -1, }, + { -1, -1, 20, -1, -1, -1, -1, -1, }, + { -1, -1, 21, -1, -1, -1, -1, -1, }, + { 22, 23, -1, -1, -1, -1, -1, -1, }, + { 24, 25, -1, -1, -1, -1, -1, -1, }, + { 26, 27, 28, -1, -1, -1, -1, -1, }, + }; + memcpy(rc->books, a, sizeof a); } + ready_residue(rc, venc); venc->nmappings = 1; - venc->mappings = av_malloc(sizeof(mapping_t) * venc->nmappings); + venc->mappings = av_malloc(sizeof(vorbis_enc_mapping) * venc->nmappings); // single mapping 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; - mc->floor = av_malloc(sizeof(int) * mc->submaps); + mc->mux = av_malloc(sizeof(int) * venc->channels); + 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++) { - mc->floor[i] = 0; + mc->floor[i] = 0; mc->residue[i] = 0; } mc->coupling_steps = venc->channels == 2 ? 1 : 0; - mc->magnitude = av_malloc(sizeof(int) * mc->coupling_steps); - mc->angle = av_malloc(sizeof(int) * mc->coupling_steps); + mc->magnitude = av_malloc(sizeof(int) * mc->coupling_steps); + mc->angle = av_malloc(sizeof(int) * mc->coupling_steps); if (mc->coupling_steps) { mc->magnitude[0] = 0; - mc->angle[0] = 1; + mc->angle[0] = 1; } venc->nmodes = 1; - venc->modes = av_malloc(sizeof(vorbis_mode_t) * venc->nmodes); + venc->modes = av_malloc(sizeof(vorbis_enc_mode) * venc->nmodes); // single mode venc->modes[0].blockflag = 0; - venc->modes[0].mapping = 0; + venc->modes[0].mapping = 0; venc->have_saved = 0; - venc->saved = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1]) / 2); - venc->samples = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1])); - venc->floor = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1]) / 2); - venc->coeffs = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1]) / 2); + venc->saved = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1]) / 2); + venc->samples = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1])); + venc->floor = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1]) / 2); + venc->coeffs = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1]) / 2); - { - const float *vwin[8]={ vwin64, vwin128, vwin256, vwin512, vwin1024, vwin2048, vwin4096, vwin8192 }; - venc->win[0] = vwin[venc->blocksize[0] - 6]; - venc->win[1] = vwin[venc->blocksize[1] - 6]; - } + venc->win[0] = ff_vorbis_vwin[venc->log2_blocksize[0] - 6]; + venc->win[1] = ff_vorbis_vwin[venc->log2_blocksize[1] - 6]; - ff_mdct_init(&venc->mdct[0], venc->blocksize[0], 0); - ff_mdct_init(&venc->mdct[1], venc->blocksize[1], 0); + ff_mdct_init(&venc->mdct[0], venc->log2_blocksize[0], 0, 1.0); + ff_mdct_init(&venc->mdct[1], venc->log2_blocksize[1], 0, 1.0); } -static void put_float(PutBitContext * pb, float f) { +static void put_float(PutBitContext *pb, float f) +{ int exp, mant; uint32_t res = 0; mant = (int)ldexp(frexp(f, &exp), 20); exp += 788 - 20; - if (mant < 0) { res |= (1 << 31); mant = -mant; } + if (mant < 0) { + res |= (1 << 31); + mant = -mant; + } res |= mant | (exp << 21); - put_bits(pb, 32, res); + put_bits32(pb, res); } -static void put_codebook_header(PutBitContext * pb, codebook_t * cb) { +static void put_codebook_header(PutBitContext *pb, vorbis_enc_codebook *cb) +{ int i; int ordered = 0; @@ -479,39 +398,50 @@ 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->entries[i].len < cb->entries[i-1].len) 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) { - int len = cb->entries[0].len; + int len = cb->lens[0]; put_bits(pb, 5, len - 1); i = 0; while (i < cb->nentries) { int j; - for (j = 0; j+i < cb->nentries; j++) if (cb->entries[j+i].len != 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->entries[i].len) 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++) { - if (sparse) put_bits(pb, 1, !!cb->entries[i].len); - if (cb->entries[i].len) put_bits(pb, 5, cb->entries[i].len - 1); + if (sparse) + put_bits(pb, 1, !!cb->lens[i]); + if (cb->lens[i]) + put_bits(pb, 5, cb->lens[i] - 1); } } put_bits(pb, 4, cb->lookup); if (cb->lookup) { - int tmp = cb_lookup_vals(cb->lookup, cb->ndimentions, cb->nentries); + 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); @@ -519,18 +449,21 @@ 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]); } } -static void put_floor_header(PutBitContext * pb, floor_t * fc) { +static void put_floor_header(PutBitContext *pb, vorbis_enc_floor *fc) +{ int i; put_bits(pb, 16, 1); // type, only floor1 is supported 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; @@ -538,20 +471,24 @@ 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) { +static void put_residue_header(PutBitContext *pb, vorbis_enc_residue *rc) +{ int i; put_bits(pb, 16, rc->type); @@ -564,12 +501,14 @@ 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++) { @@ -580,75 +519,80 @@ static void put_residue_header(PutBitContext * pb, residue_t * rc) { } } -static int put_main_header(venc_context_t * venc, uint8_t ** out) { +static int put_main_header(vorbis_enc_context *venc, uint8_t **out) +{ int i; PutBitContext pb; - uint8_t buffer[50000] = {0}, * p = buffer; + uint8_t buffer[50000] = {0}, *p = buffer; int buffer_len = sizeof buffer; int len, hlens[3]; // 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]); - put_bits(&pb, 32, 0); // version - put_bits(&pb, 8, venc->channels); - put_bits(&pb, 32, venc->sample_rate); - put_bits(&pb, 32, 0); // bitrate - put_bits(&pb, 32, 0); // bitrate - put_bits(&pb, 32, 0); // bitrate - put_bits(&pb, 4, venc->blocksize[0]); - put_bits(&pb, 4, venc->blocksize[1]); - put_bits(&pb, 1, 1); // framing + ff_put_string(&pb, "vorbis", 0); + put_bits32(&pb, 0); // version + put_bits(&pb, 8, venc->channels); + put_bits32(&pb, venc->sample_rate); + put_bits32(&pb, 0); // bitrate + put_bits32(&pb, 0); // bitrate + put_bits32(&pb, 0); // bitrate + put_bits(&pb, 4, venc->log2_blocksize[0]); + put_bits(&pb, 4, venc->log2_blocksize[1]); + put_bits(&pb, 1, 1); // framing flush_put_bits(&pb); - hlens[0] = (put_bits_count(&pb) + 7) / 8; + hlens[0] = put_bits_count(&pb) >> 3; buffer_len -= hlens[0]; p += hlens[0]; // 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]); - put_bits(&pb, 32, 0); // vendor length TODO - put_bits(&pb, 32, 0); // amount of comments - put_bits(&pb, 1, 1); // framing + ff_put_string(&pb, "vorbis", 0); + put_bits32(&pb, 0); // vendor length TODO + put_bits32(&pb, 0); // amount of comments + put_bits(&pb, 1, 1); // framing flush_put_bits(&pb); - hlens[1] = (put_bits_count(&pb) + 7) / 8; + hlens[1] = put_bits_count(&pb) >> 3; buffer_len -= hlens[1]; p += hlens[1]; // 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]); + ff_put_string(&pb, "vorbis", 0); // 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); + put_bits(&pb, 6, 0); put_bits(&pb, 16, 0); // 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); for (i = 0; i < venc->nmappings; i++) { - mapping_t * mc = &venc->mappings[i]; + vorbis_enc_mapping *mc = &venc->mappings[i]; int j; 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) { @@ -661,7 +605,9 @@ 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 @@ -682,7 +628,7 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) { put_bits(&pb, 1, 1); // framing flush_put_bits(&pb); - hlens[2] = (put_bits_count(&pb) + 7) / 8; + hlens[2] = put_bits_count(&pb) >> 3; len = hlens[0] + hlens[1] + hlens[2]; p = *out = av_mallocz(64 + len + len/255); @@ -700,67 +646,62 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) { return p - *out; } -static void floor_fit(venc_context_t * venc, floor_t * fc, float * coeffs, int * posts, int samples) { +static float get_floor_average(vorbis_enc_floor * fc, float *coeffs, int i) +{ + int begin = fc->list[fc->list[FFMAX(i-1, 0)].sort].x; + int end = fc->list[fc->list[FFMIN(i+1, fc->values - 1)].sort].x; + int j; + float average = 0; + + for (j = begin; j < end; j++) + average += fabs(coeffs[j]); + return average / (end - begin); +} + +static void floor_fit(vorbis_enc_context *venc, vorbis_enc_floor *fc, + float *coeffs, uint_fast16_t *posts, int samples) +{ int range = 255 / fc->multiplier + 1; int i; + float tot_average = 0.; + float averages[fc->values]; for (i = 0; i < fc->values; i++) { - int position = fc->list[fc->list[i].sort].x; - int begin = fc->list[fc->list[FFMAX(i-1, 0)].sort].x; - int end = fc->list[fc->list[FFMIN(i+1, fc->values - 1)].sort].x; + averages[i] = get_floor_average(fc, coeffs, i); + tot_average += averages[i]; + } + tot_average /= fc->values; + tot_average /= venc->quality; + + for (i = 0; i < fc->values; i++) { + int position = fc->list[fc->list[i].sort].x; + float average = averages[i]; int j; - float average = 0; - begin = (position + begin) / 2; - end = (position + end ) / 2; - - assert(end <= samples); - for (j = begin; j < end; j++) average += fabs(coeffs[j]); - average /= end - begin; - average /= 32; // MAGIC! - for (j = 0; j < range - 1; j++) if (floor1_inverse_db_table[j * fc->multiplier] > average) break; + + 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; posts[fc->list[i].sort] = j; } } -static int render_point(int x0, int y0, int x1, int y1, int x) { +static int render_point(int x0, int y0, int x1, int y1, int x) +{ return y0 + (x - x0) * (y1 - y0) / (x1 - x0); } -static void render_line(int x0, int y0, int x1, int y1, float * buf, int n) { - int dy = y1 - y0; - int adx = x1 - x0; - int ady = FFMAX(dy, -dy); - int base = dy / adx; - int x = x0; - int y = y0; - int err = 0; - int sy; - if (dy < 0) sy = base - 1; - else sy = base + 1; - ady = ady - FFMAX(base, -base) * adx; - if (x >= n) return; - buf[x] = floor1_inverse_db_table[y]; - for (x = x0 + 1; x < x1; x++) { - if (x >= n) return; - err += ady; - if (err >= adx) { - err -= adx; - y += sy; - } else { - y += base; - } - buf[x] = floor1_inverse_db_table[y]; - } -} - -static void floor_encode(venc_context_t * venc, floor_t * fc, PutBitContext * pb, int * posts, float * floor, int samples) { +static void floor_encode(vorbis_enc_context *venc, vorbis_enc_floor *fc, + PutBitContext *pb, uint_fast16_t *posts, + float *floor, int samples) +{ int range = 255 / fc->multiplier + 1; int coded[fc->values]; // first 2 values are unused int i, counter; - int lx, ly; put_bits(pb, 1, 1); // non zero put_bits(pb, ilog(range - 1), posts[0]); put_bits(pb, ilog(range - 1), posts[1]); + coded[0] = coded[1] = 1; for (i = 2; i < fc->values; i++) { int predicted = render_point(fc->list[fc->list[i].low].x, @@ -775,135 +716,166 @@ static void floor_encode(venc_context_t * venc, floor_t * fc, PutBitContext * pb coded[i] = 0; // must be used later as flag! continue; } else { - if (!coded[fc->list[i].low]) coded[fc->list[i].low] = -1; - if (!coded[fc->list[i].high]) coded[fc->list[i].high] = -1; + if (!coded[fc->list[i].low ]) + coded[fc->list[i].low ] = -1; + 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; } } counter = 2; for (i = 0; i < fc->partitions; i++) { - floor_class_t * c = &fc->classes[fc->partition_to_class[i]]; + vorbis_enc_floor_class * c = &fc->classes[fc->partition_to_class[i]]; int k, cval = 0, csub = 1<subclass; if (c->subclass) { - codebook_t * book = &venc->codebooks[c->masterbook]; + vorbis_enc_codebook * book = &venc->codebooks[c->masterbook]; int cshift = 0; for (k = 0; k < c->dim; k++) { int l; for (l = 0; l < csub; l++) { int maxval = 1; - 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; + if (c->books[l] != -1) + maxval = venc->codebooks[c->books[l]].nentries; + // coded could be -1, but this still works, cause that is 0 + if (coded[counter + k] < maxval) + break; } assert(l != csub); - cval |= l << cshift; + cval |= l << cshift; cshift += c->subclass; } - assert(cval < book->nentries); - put_bits(pb, book->entries[cval].len, book->entries[cval].codeword); + put_codeword(pb, book, cval); } for (k = 0; k < c->dim; k++) { - int book = c->books[cval & (csub-1)]; + int book = c->books[cval & (csub-1)]; int entry = coded[counter++]; cval >>= c->subclass; - if (book == -1) continue; - if (entry == -1) entry = 0; - assert(entry < venc->codebooks[book].nentries); - assert(entry >= 0); - put_bits(pb, venc->codebooks[book].entries[entry].len, venc->codebooks[book].entries[entry].codeword); + if (book == -1) + continue; + if (entry == -1) + entry = 0; + put_codeword(pb, &venc->codebooks[book], entry); } } - lx = 0; - ly = posts[0] * fc->multiplier; // sorted 0 is still 0 - coded[0] = coded[1] = 1; - for (i = 1; i < fc->values; i++) { - int pos = fc->list[i].sort; - if (coded[pos]) { - render_line(lx, ly, fc->list[pos].x, posts[pos] * fc->multiplier, floor, samples); - lx = fc->list[pos].x; - ly = posts[pos] * fc->multiplier; - } - if (lx >= samples) break; - } - if (lx < samples) render_line(lx, ly, samples, ly, floor, samples); + ff_vorbis_floor1_render_list(fc->list, fc->values, posts, coded, + fc->multiplier, floor, samples); } -static float * put_vector(codebook_t * book, PutBitContext * pb, float * num) { - int i; - int entry = -1; - float distance = 0; +static float *put_vector(vorbis_enc_codebook *book, PutBitContext *pb, + float *num) +{ + int i, entry = -1; + float distance = FLT_MAX; assert(book->dimentions); for (i = 0; i < book->nentries; i++) { - float d = 0.; + float * vec = book->dimentions + i * book->ndimentions, d = book->pow2[i]; 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; + if (!book->lens[i]) + continue; + for (j = 0; j < book->ndimentions; j++) + d -= vec[j] * num[j]; + if (distance > d) { + entry = i; distance = d; } } - put_bits(pb, book->entries[entry].len, book->entries[entry].codeword); + put_codeword(pb, book, entry); return &book->dimentions[entry * book->ndimentions]; } -static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext * pb, float * coeffs, int samples, int channels) { +static void residue_encode(vorbis_enc_context *venc, vorbis_enc_residue *rc, + PutBitContext *pb, float *coeffs, int samples, + int real_ch) +{ int pass, i, j, p, k; - int psize = rc->partition_size; + int psize = rc->partition_size; int partitions = (rc->end - rc->begin) / psize; + int channels = (rc->type == 2) ? 1 : real_ch; int classes[channels][partitions]; int classwords = venc->codebooks[rc->classbook].ndimentions; - int real_ch = channels; - if (rc->type == 2) channels = 1; + assert(rc->type == 2); + assert(real_ch == 2); + for (p = 0; p < partitions; p++) { + float max1 = 0., max2 = 0.; + int s = rc->begin + p * psize; + for (k = s; k < s + psize; k += 2) { + max1 = FFMAX(max1, fabs(coeffs[ k / real_ch])); + max2 = FFMAX(max2, fabs(coeffs[samples + k / real_ch])); + } + + for (i = 0; i < rc->classifications - 1; i++) + if (max1 < rc->maxes[i][0] && max2 < rc->maxes[i][1]) + break; + classes[0][p] = i; + } 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; + if (pass == 0) + for (j = 0; j < channels; j++) { + vorbis_enc_codebook * book = &venc->codebooks[rc->classbook]; + int entry = 0; + for (i = 0; i < classwords; i++) { + entry *= rc->classifications; + entry += classes[j][p + i]; + } + put_codeword(pb, book, entry); } - } 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; + vorbis_enc_codebook * book = &venc->codebooks[nbook]; + float *buf = coeffs + samples*j + rc->begin + p*psize; + if (nbook == -1) + continue; assert(rc->type == 0 || rc->type == 2); assert(!(psize % book->ndimentions)); if (rc->type == 0) { for (k = 0; k < psize; k += book->ndimentions) { - float * a = put_vector(book, pb, &buf[k]); + 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; + a1 = (s % real_ch) * samples; + b1 = s / real_ch; + s = real_ch * samples; for (k = 0; k < psize; k += book->ndimentions) { - int dim = book->ndimentions, s = rc->begin + p * psize, l; - float vec[dim], * a = vec; - for (l = s + k; l < s + k + dim; l++) - *a++ = coeffs[(l % real_ch) * samples + l / real_ch]; - a = put_vector(book, pb, vec); - for (l = s + k; l < s + k + dim; l++) - coeffs[(l % real_ch) * samples + l / real_ch] -= *a++; + int dim, a2 = a1, b2 = b1; + float vec[book->ndimentions], *pv = vec; + for (dim = book->ndimentions; dim--; ) { + *pv++ = coeffs[a2 + 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++; + } + } } } } @@ -912,23 +884,26 @@ static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext } } -static int window(venc_context_t * venc, signed short * audio, int samples) { +static int apply_window_and_mdct(vorbis_enc_context *venc, signed short *audio, + int samples) +{ int i, j, channel; const float * win = venc->win[0]; - int window_len = 1 << (venc->blocksize[0] - 1); - float n = (float)(1 << venc->blocksize[0]) / 4.; + int window_len = 1 << (venc->log2_blocksize[0] - 1); + float n = (float)(1 << venc->log2_blocksize[0]) / 4.; // FIXME use dsp - if (!venc->have_saved && !samples) return 0; + if (!venc->have_saved && !samples) + return 0; if (venc->have_saved) { - for (channel = 0; channel < venc->channels; channel++) { - memcpy(venc->samples + channel*window_len*2, venc->saved + channel*window_len, sizeof(float)*window_len); - } + for (channel = 0; channel < venc->channels; channel++) + memcpy(venc->samples + channel * window_len * 2, + venc->saved + channel * window_len, sizeof(float) * window_len); } else { - for (channel = 0; channel < venc->channels; channel++) { - memset(venc->samples + channel*window_len*2, 0, sizeof(float)*window_len); - } + for (channel = 0; channel < venc->channels; channel++) + memset(venc->samples + channel * window_len * 2, 0, + sizeof(float) * window_len); } if (samples) { @@ -936,24 +911,24 @@ static int window(venc_context_t * venc, signed short * audio, int samples) { float * offset = venc->samples + channel*window_len*2 + window_len; j = channel; for (i = 0; i < samples; i++, j += venc->channels) - offset[i] = audio[j] / 32768. / n * win[window_len - i - 1]; + offset[i] = -audio[j] / 32768. / n * win[window_len - i - 1]; //FIXME find out why the sign has to be fliped } } else { - for (channel = 0; channel < venc->channels; channel++) { - memset(venc->samples + channel*window_len*2 + window_len, 0, sizeof(float)*window_len); - } + for (channel = 0; channel < venc->channels; channel++) + memset(venc->samples + channel * window_len * 2 + window_len, + 0, sizeof(float) * window_len); } - for (channel = 0; channel < venc->channels; channel++) { - ff_mdct_calc(&venc->mdct[0], venc->coeffs + channel*window_len, venc->samples + channel*window_len*2, venc->floor/*tmp*/); - } + for (channel = 0; channel < venc->channels; channel++) + ff_mdct_calc(&venc->mdct[0], venc->coeffs + channel * window_len, + venc->samples + channel * window_len * 2); if (samples) { for (channel = 0; channel < venc->channels; channel++) { - float * offset = venc->saved + channel*window_len; + float *offset = venc->saved + channel * window_len; j = channel; for (i = 0; i < samples; i++, j += venc->channels) - offset[i] = audio[j] / 32768. / n * win[i]; + offset[i] = -audio[j] / 32768. / n * win[i]; //FIXME find out why the sign has to be fliped } venc->have_saved = 1; } else { @@ -962,37 +937,48 @@ static int window(venc_context_t * venc, signed short * audio, int samples) { return 1; } -static int vorbis_encode_init(AVCodecContext * avccontext) +static av_cold int vorbis_encode_init(AVCodecContext *avccontext) { - venc_context_t * venc = avccontext->priv_data; + vorbis_enc_context *venc = avccontext->priv_data; + + if (avccontext->channels != 2) { + av_log(avccontext, AV_LOG_ERROR, "Current FFmpeg Vorbis encoder only supports 2 channels.\n"); + return -1; + } 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; + 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); - avccontext->frame_size = 1 << (venc->blocksize[0] - 1); + avccontext->frame_size = 1 << (venc->log2_blocksize[0] - 1); - avccontext->coded_frame = avcodec_alloc_frame(); + 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) +static int vorbis_encode_frame(AVCodecContext *avccontext, + unsigned char *packets, + int buf_size, void *data) { - venc_context_t * venc = avccontext->priv_data; - signed short * audio = data; + vorbis_enc_context *venc = avccontext->priv_data; + signed short *audio = data; int samples = data ? avccontext->frame_size : 0; - vorbis_mode_t * mode; - mapping_t * mapping; + vorbis_enc_mode *mode; + vorbis_enc_mapping *mapping; PutBitContext pb; int i; - if (!window(venc, audio, samples)) return 0; - samples = 1 << (venc->blocksize[0] - 1); + if (!apply_window_and_mdct(venc, audio, samples)) + return 0; + samples = 1 << (venc->log2_blocksize[0] - 1); init_put_bits(&pb, packets, buf_size); @@ -1000,7 +986,7 @@ static int vorbis_encode_frame(AVCodecContext * avccontext, unsigned char * pack put_bits(&pb, ilog(venc->nmodes - 1), 0); // 0 bits, the mode - mode = &venc->modes[0]; + mode = &venc->modes[0]; mapping = &venc->mappings[mode->mapping]; if (mode->blockflag) { put_bits(&pb, 1, 0); @@ -1008,77 +994,81 @@ static int vorbis_encode_frame(AVCodecContext * avccontext, unsigned char * pack } for (i = 0; i < venc->channels; i++) { - floor_t * fc = &venc->floors[mapping->floor[mapping->mux[i]]]; - int posts[fc->values]; + vorbis_enc_floor *fc = &venc->floors[mapping->floor[mapping->mux[i]]]; + uint_fast16_t posts[fc->values]; floor_fit(venc, fc, &venc->coeffs[i * samples], posts, samples); floor_encode(venc, fc, &pb, posts, &venc->floor[i * samples], samples); } - for (i = 0; i < venc->channels; i++) { - int j; - for (j = 0; j < samples; j++) { - venc->coeffs[i * samples + j] /= venc->floor[i * samples + j]; - } - } + for (i = 0; i < venc->channels * samples; i++) + venc->coeffs[i] /= venc->floor[i]; for (i = 0; i < mapping->coupling_steps; i++) { - float * mag = venc->coeffs + mapping->magnitude[i] * samples; - float * ang = venc->coeffs + mapping->angle[i] * samples; + float *mag = venc->coeffs + mapping->magnitude[i] * samples; + float *ang = venc->coeffs + mapping->angle[i] * samples; int j; for (j = 0; j < samples; j++) { - float m = mag[j]; float a = ang[j]; - if (m > 0) { - ang[j] = m - a; - if (a > m) mag[j] = a; - else mag[j] = m; - } else { - ang[j] = a - m; - if (a > m) mag[j] = m; - else mag[j] = a; - } + ang[j] -= mag[j]; + if (mag[j] > 0) + ang[j] = -ang[j]; + if (ang[j] < 0) + mag[j] = a; } } - residue_encode(venc, &venc->residues[mapping->residue[mapping->mux[0]]], &pb, venc->coeffs, samples, venc->channels); + residue_encode(venc, &venc->residues[mapping->residue[mapping->mux[0]]], + &pb, venc->coeffs, samples, venc->channels); - return (put_bits_count(&pb) + 7) / 8; + avccontext->coded_frame->pts = venc->sample_count; + venc->sample_count += avccontext->frame_size; + flush_put_bits(&pb); + return put_bits_count(&pb) >> 3; } -static int vorbis_encode_close(AVCodecContext * avccontext) +static av_cold int vorbis_encode_close(AVCodecContext *avccontext) { - venc_context_t * venc = avccontext->priv_data; + vorbis_enc_context *venc = avccontext->priv_data; int i; - if (venc->codebooks) for (i = 0; i < venc->ncodebooks; i++) { - av_freep(&venc->codebooks[i].entries); - av_freep(&venc->codebooks[i].quantlist); - av_freep(&venc->codebooks[i].dimentions); - } + 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); + av_freep(&venc->codebooks[i].dimentions); + av_freep(&venc->codebooks[i].pow2); + } av_freep(&venc->codebooks); - if (venc->floors) for (i = 0; i < venc->nfloors; i++) { - int j; - av_freep(&venc->floors[i].classes); - if (venc->floors[i].classes) - for (j = 0; j < venc->floors[i].nclasses; j++) - av_freep(&venc->floors[i].classes[j].books); - av_freep(&venc->floors[i].partition_to_class); - av_freep(&venc->floors[i].list); - } + if (venc->floors) + for (i = 0; i < venc->nfloors; i++) { + int j; + if (venc->floors[i].classes) + for (j = 0; j < venc->floors[i].nclasses; j++) + av_freep(&venc->floors[i].classes[j].books); + av_freep(&venc->floors[i].classes); + av_freep(&venc->floors[i].partition_to_class); + av_freep(&venc->floors[i].list); + } av_freep(&venc->floors); - if (venc->residues) for (i = 0; i < venc->nresidues; i++) { - av_freep(&venc->residues[i].books); - } + 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++) { - av_freep(&venc->mappings[i].mux); - av_freep(&venc->mappings[i].floor); - av_freep(&venc->mappings[i].residue); - } + 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); + av_freep(&venc->mappings[i].magnitude); + av_freep(&venc->mappings[i].angle); + } av_freep(&venc->mappings); av_freep(&venc->modes); @@ -1101,9 +1091,11 @@ AVCodec vorbis_encoder = { "vorbis", CODEC_TYPE_AUDIO, CODEC_ID_VORBIS, - sizeof(venc_context_t), + sizeof(vorbis_enc_context), vorbis_encode_init, vorbis_encode_frame, vorbis_encode_close, .capabilities= CODEC_CAP_DELAY, + .sample_fmts = (const enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE}, + .long_name = NULL_IF_CONFIG_SMALL("Vorbis"), };