cc767a8969
slight optimization, don't calculate average twice Originally committed as revision 6507 to svn://svn.ffmpeg.org/ffmpeg/trunk
1511 lines
55 KiB
C
1511 lines
55 KiB
C
/*
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* copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file vorbis_enc.c
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* Native Vorbis encoder.
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* @author Oded Shimon <ods15@ods15.dyndns.org>
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*/
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#include "avcodec.h"
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#include "dsputil.h"
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#include "vorbis.h"
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#undef NDEBUG
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#include <assert.h>
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typedef struct {
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int nentries;
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uint8_t * lens;
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uint32_t * codewords;
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int ndimentions;
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float min;
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float delta;
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int seq_p;
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int lookup;
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int * quantlist;
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float * dimentions;
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} codebook_t;
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typedef struct {
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int dim;
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int subclass;
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int masterbook;
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int * books;
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} floor_class_t;
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typedef struct {
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int partitions;
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int * partition_to_class;
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int nclasses;
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floor_class_t * classes;
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int multiplier;
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int rangebits;
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int values;
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floor1_entry_t * list;
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} floor_t;
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typedef struct {
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int type;
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int begin;
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int end;
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int partition_size;
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int classifications;
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int classbook;
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int8_t (*books)[8];
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float (*maxes)[2];
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} residue_t;
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typedef struct {
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int submaps;
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int * mux;
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int * floor;
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int * residue;
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int coupling_steps;
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int * magnitude;
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int * angle;
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} mapping_t;
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typedef struct {
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int blockflag;
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int mapping;
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} vorbis_mode_t;
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typedef struct {
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int channels;
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int sample_rate;
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int blocksize[2]; // in (1<<n) format
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MDCTContext mdct[2];
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const float * win[2];
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int have_saved;
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float * saved;
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float * samples;
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float * floor; // also used for tmp values for mdct
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float * coeffs; // also used for residue after floor
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float quality;
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int ncodebooks;
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codebook_t * codebooks;
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int nfloors;
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floor_t * floors;
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int nresidues;
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residue_t * residues;
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int nmappings;
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mapping_t * mappings;
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int nmodes;
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vorbis_mode_t * modes;
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} venc_context_t;
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typedef struct {
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int total;
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int total_pos;
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int pos;
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uint8_t * buf_ptr;
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} PutBitContext;
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static const uint8_t codebook0[] = {
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2, 10, 8, 14, 7, 12, 11, 14, 1, 5, 3, 7, 4, 9, 7,
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13,
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};
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static const uint8_t codebook1[] = {
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1, 4, 2, 6, 3, 7, 5, 7,
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};
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static const uint8_t codebook2[] = {
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1, 5, 7, 21, 5, 8, 9, 21, 10, 9, 12, 20, 20, 16, 20,
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20, 4, 8, 9, 20, 6, 8, 9, 20, 11, 11, 13, 20, 20, 15,
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17, 20, 9, 11, 14, 20, 8, 10, 15, 20, 11, 13, 15, 20, 20,
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20, 20, 20, 20, 20, 20, 20, 13, 20, 20, 20, 18, 18, 20, 20,
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20, 20, 20, 20, 3, 6, 8, 20, 6, 7, 9, 20, 10, 9, 12,
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20, 20, 20, 20, 20, 5, 7, 9, 20, 6, 6, 9, 20, 10, 9,
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12, 20, 20, 20, 20, 20, 8, 10, 13, 20, 8, 9, 12, 20, 11,
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10, 12, 20, 20, 20, 20, 20, 18, 20, 20, 20, 15, 17, 18, 20,
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18, 17, 18, 20, 20, 20, 20, 20, 7, 10, 12, 20, 8, 9, 11,
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20, 14, 13, 14, 20, 20, 20, 20, 20, 6, 9, 12, 20, 7, 8,
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11, 20, 12, 11, 13, 20, 20, 20, 20, 20, 9, 11, 15, 20, 8,
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10, 14, 20, 12, 11, 14, 20, 20, 20, 20, 20, 20, 20, 20, 20,
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20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 11, 16, 18,
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20, 15, 15, 17, 20, 20, 17, 20, 20, 20, 20, 20, 20, 9, 14,
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16, 20, 12, 12, 15, 20, 17, 15, 18, 20, 20, 20, 20, 20, 16,
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19, 18, 20, 15, 16, 20, 20, 17, 17, 20, 20, 20, 20, 20, 20,
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20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
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20,
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};
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static const uint8_t codebook3[] = {
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2, 3, 7, 13, 4, 4, 7, 15, 8, 6, 9, 17, 21, 16, 15,
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21, 2, 5, 7, 11, 5, 5, 7, 14, 9, 7, 10, 16, 17, 15,
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16, 21, 4, 7, 10, 17, 7, 7, 9, 15, 11, 9, 11, 16, 21,
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18, 15, 21, 18, 21, 21, 21, 15, 17, 17, 19, 21, 19, 18, 20,
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21, 21, 21, 20,
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};
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static const uint8_t codebook4[] = {
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5, 5, 5, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6,
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5, 6, 5, 6, 5, 6, 5, 6, 5, 7, 5, 7, 5, 7, 5,
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7, 5, 8, 6, 8, 6, 8, 6, 9, 6, 9, 6, 10, 6, 10,
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6, 11, 6, 11, 7, 11, 7, 12, 7, 12, 7, 12, 7, 12, 7,
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12, 7, 12, 7, 12, 7, 12, 8, 13, 8, 12, 8, 12, 8, 13,
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8, 13, 9, 13, 9, 13, 9, 13, 9, 12, 10, 12, 10, 13, 10,
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14, 11, 14, 12, 14, 13, 14, 13, 14, 14, 15, 16, 15, 15, 15,
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14, 15, 17, 21, 22, 22, 21, 22, 22, 22, 22, 22, 22, 21, 21,
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21, 21, 21, 21, 21, 21, 21, 21,
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};
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static const uint8_t codebook5[] = {
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2, 5, 5, 4, 5, 4, 5, 4, 5, 4, 6, 5, 6, 5, 6,
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5, 6, 5, 7, 5, 7, 6, 8, 6, 8, 6, 8, 6, 9, 6,
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9, 6,
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};
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static const uint8_t codebook6[] = {
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8, 5, 8, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9,
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4, 9, 4, 9, 4, 9, 4, 8, 4, 8, 4, 9, 5, 9, 5,
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9, 5, 9, 5, 9, 6, 10, 6, 10, 7, 10, 8, 11, 9, 11,
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11, 12, 13, 12, 14, 13, 15, 13, 15, 14, 16, 14, 17, 15, 17,
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15, 15, 16, 16, 15, 16, 16, 16, 15, 18, 16, 15, 17, 17, 19,
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19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
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19, 19, 19, 19, 19, 19,
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};
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static const uint8_t codebook7[] = {
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1, 5, 5, 5, 5, 5, 5, 5, 6, 5, 6, 5, 6, 5, 6,
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5, 6, 6, 7, 7, 7, 7, 8, 7, 8, 8, 9, 8, 10, 9,
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10, 9,
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};
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static const uint8_t codebook8[] = {
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4, 3, 4, 3, 4, 4, 5, 4, 5, 4, 5, 5, 6, 5, 6,
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5, 7, 5, 7, 6, 7, 6, 8, 7, 8, 7, 8, 7, 9, 8,
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9, 9, 9, 9, 10, 10, 10, 11, 9, 12, 9, 12, 9, 15, 10,
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14, 9, 13, 10, 13, 10, 12, 10, 12, 10, 13, 10, 12, 11, 13,
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11, 14, 12, 13, 13, 14, 14, 13, 14, 15, 14, 16, 13, 13, 14,
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16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
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16, 16, 16, 16, 15, 15,
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};
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static const uint8_t codebook9[] = {
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4, 5, 4, 5, 3, 5, 3, 5, 3, 5, 4, 4, 4, 4, 5,
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5, 5,
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};
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static const uint8_t codebook10[] = {
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3, 3, 4, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 5,
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7, 5, 8, 6, 8, 6, 9, 7, 10, 7, 10, 8, 10, 8, 11,
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9, 11,
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};
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static const uint8_t codebook11[] = {
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3, 7, 3, 8, 3, 10, 3, 8, 3, 9, 3, 8, 4, 9, 4,
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9, 5, 9, 6, 10, 6, 9, 7, 11, 7, 12, 9, 13, 10, 13,
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12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
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12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
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12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
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12, 12, 12,
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};
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static const uint8_t codebook12[] = {
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4, 5, 4, 5, 4, 5, 4, 5, 3, 5, 3, 5, 3, 5, 4,
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5, 4,
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};
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static const uint8_t codebook13[] = {
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4, 2, 4, 2, 5, 3, 5, 4, 6, 6, 6, 7, 7, 8, 7,
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8, 7, 8, 7, 9, 8, 9, 8, 9, 8, 10, 8, 11, 9, 12,
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9, 12,
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};
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static const uint8_t codebook14[] = {
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2, 5, 2, 6, 3, 6, 4, 7, 4, 7, 5, 9, 5, 11, 6,
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11, 6, 11, 7, 11, 6, 11, 6, 11, 9, 11, 8, 11, 11, 11,
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11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
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11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
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11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10,
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10, 10, 10,
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};
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static const uint8_t codebook15[] = {
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5, 6, 11, 11, 11, 11, 10, 10, 12, 11, 5, 2, 11, 5, 6,
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6, 7, 9, 11, 13, 13, 10, 7, 11, 6, 7, 8, 9, 10, 12,
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11, 5, 11, 6, 8, 7, 9, 11, 14, 15, 11, 6, 6, 8, 4,
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5, 7, 8, 10, 13, 10, 5, 7, 7, 5, 5, 6, 8, 10, 11,
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10, 7, 7, 8, 6, 5, 5, 7, 9, 9, 11, 8, 8, 11, 8,
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7, 6, 6, 7, 9, 12, 11, 10, 13, 9, 9, 7, 7, 7, 9,
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11, 13, 12, 15, 12, 11, 9, 8, 8, 8,
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};
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static const uint8_t codebook16[] = {
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2, 4, 4, 0, 0, 0, 0, 0, 0, 5, 6, 6, 0, 0, 0,
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0, 0, 0, 5, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 5, 7, 7, 0, 0, 0, 0, 0, 0,
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7, 8, 8, 0, 0, 0, 0, 0, 0, 6, 7, 8, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 7, 7,
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0, 0, 0, 0, 0, 0, 6, 8, 7, 0, 0, 0, 0, 0, 0,
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7, 8, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 7, 7, 0, 0, 0,
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0, 0, 0, 7, 8, 8, 0, 0, 0, 0, 0, 0, 7, 8, 8,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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7, 8, 8, 0, 0, 0, 0, 0, 0, 8, 8, 9, 0, 0, 0,
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0, 0, 0, 8, 9, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 6, 8, 8, 0, 0, 0, 0, 0, 0,
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7, 9, 8, 0, 0, 0, 0, 0, 0, 8, 9, 9, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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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, 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, 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, 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, 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, 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, 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, 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, 0, 0, 5, 7, 7, 0, 0, 0, 0, 0, 0, 7, 8, 8,
|
|
0, 0, 0, 0, 0, 0, 7, 8, 8, 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, 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, 6, 8, 8, 0, 0, 0,
|
|
0, 0, 0, 8, 9, 9, 0, 0, 0, 0, 0, 0, 7, 8, 9,
|
|
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, 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,
|
|
6, 8, 8, 0, 0, 0, 0, 0, 0, 8, 9, 9, 0, 0, 0,
|
|
0, 0, 0, 8, 9, 8,
|
|
};
|
|
|
|
static const uint8_t codebook17[] = {
|
|
2, 5, 5, 0, 0, 0, 5, 5, 0, 0, 0, 5, 5, 0, 0,
|
|
0, 7, 8, 0, 0, 0, 0, 0, 0, 0, 5, 6, 6, 0, 0,
|
|
0, 7, 7, 0, 0, 0, 7, 7, 0, 0, 0, 10, 10, 0, 0,
|
|
0, 0, 0, 0, 0, 5, 6, 6, 0, 0, 0, 7, 7, 0, 0,
|
|
0, 7, 7, 0, 0, 0, 10, 10, 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, 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, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
5, 7, 7, 0, 0, 0, 7, 7, 0, 0, 0, 7, 7, 0, 0,
|
|
0, 9, 9, 0, 0, 0, 0, 0, 0, 0, 5, 7, 7, 0, 0,
|
|
0, 7, 7, 0, 0, 0, 7, 7, 0, 0, 0, 9, 9, 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,
|
|
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 5, 7, 7, 0, 0, 0, 7, 7, 0, 0,
|
|
0, 7, 7, 0, 0, 0, 9, 9, 0, 0, 0, 0, 0, 0, 0,
|
|
5, 7, 7, 0, 0, 0, 7, 7, 0, 0, 0, 7, 7, 0, 0,
|
|
0, 9, 9, 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, 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, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 10, 10, 0, 0,
|
|
0, 9, 9, 0, 0, 0, 9, 9, 0, 0, 0, 10, 10, 0, 0,
|
|
0, 0, 0, 0, 0, 8, 10, 10, 0, 0, 0, 9, 9, 0, 0,
|
|
0, 9, 9, 0, 0, 0, 10, 10,
|
|
};
|
|
|
|
static const uint8_t codebook18[] = {
|
|
2, 4, 3, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 4, 6, 6,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 4, 4, 4, 6, 6, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
6, 6, 6, 9, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 7, 9, 9,
|
|
};
|
|
|
|
static const uint8_t codebook19[] = {
|
|
2, 3, 3, 6, 6, 0, 0, 0, 0, 0, 4, 4, 6, 6, 0,
|
|
0, 0, 0, 0, 4, 4, 6, 6, 0, 0, 0, 0, 0, 5, 5,
|
|
6, 6, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 0, 0, 0,
|
|
0, 0, 0, 7, 8, 0, 0, 0, 0, 0, 0, 0, 7, 7, 0,
|
|
0, 0, 0, 0, 0, 0, 9, 9,
|
|
};
|
|
|
|
static const uint8_t codebook20[] = {
|
|
1, 3, 4, 6, 6, 7, 7, 9, 9, 0, 5, 5, 7, 7, 7,
|
|
8, 9, 9, 0, 5, 5, 7, 7, 8, 8, 9, 9, 0, 7, 7,
|
|
8, 8, 8, 8, 10, 10, 0, 0, 0, 8, 8, 8, 8, 10, 10,
|
|
0, 0, 0, 9, 9, 9, 9, 10, 10, 0, 0, 0, 9, 9, 9,
|
|
9, 10, 10, 0, 0, 0, 10, 10, 10, 10, 11, 11, 0, 0, 0,
|
|
0, 0, 10, 10, 11, 11,
|
|
};
|
|
|
|
static const uint8_t codebook21[] = {
|
|
2, 3, 3, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10,
|
|
11, 10, 0, 5, 5, 7, 7, 8, 8, 9, 9, 9, 9, 10, 10,
|
|
10, 10, 11, 11, 0, 5, 5, 7, 7, 8, 8, 9, 9, 9, 9,
|
|
10, 10, 10, 10, 11, 11, 0, 6, 6, 7, 7, 8, 8, 9, 9,
|
|
9, 9, 10, 10, 11, 11, 11, 11, 0, 0, 0, 7, 7, 8, 8,
|
|
9, 9, 9, 9, 10, 10, 11, 11, 11, 12, 0, 0, 0, 8, 8,
|
|
8, 8, 9, 9, 9, 9, 10, 10, 11, 11, 12, 12, 0, 0, 0,
|
|
8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 11, 11, 12, 12, 0,
|
|
0, 0, 9, 9, 9, 9, 10, 10, 10, 10, 11, 10, 11, 11, 12,
|
|
12, 0, 0, 0, 0, 0, 9, 9, 10, 10, 10, 10, 11, 11, 11,
|
|
11, 12, 12, 0, 0, 0, 0, 0, 9, 8, 9, 9, 10, 10, 11,
|
|
11, 12, 12, 12, 12, 0, 0, 0, 0, 0, 8, 8, 9, 9, 10,
|
|
10, 11, 11, 12, 11, 12, 12, 0, 0, 0, 0, 0, 9, 10, 10,
|
|
10, 11, 11, 11, 11, 12, 12, 13, 13, 0, 0, 0, 0, 0, 0,
|
|
0, 10, 10, 10, 10, 11, 11, 12, 12, 13, 13, 0, 0, 0, 0,
|
|
0, 0, 0, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 0, 0,
|
|
0, 0, 0, 0, 0, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13,
|
|
0, 0, 0, 0, 0, 0, 0, 11, 11, 12, 12, 12, 12, 13, 13,
|
|
13, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 12, 12, 12,
|
|
13, 13, 13, 13,
|
|
};
|
|
|
|
static const uint8_t codebook22[] = {
|
|
1, 4, 4, 7, 6, 6, 7, 6, 6, 4, 7, 7, 10, 9, 9,
|
|
11, 9, 9, 4, 7, 7, 10, 9, 9, 11, 9, 9, 7, 10, 10,
|
|
11, 11, 10, 12, 11, 11, 6, 9, 9, 11, 10, 10, 11, 10, 10,
|
|
6, 9, 9, 11, 10, 10, 11, 10, 10, 7, 11, 11, 11, 11, 11,
|
|
12, 11, 11, 6, 9, 9, 11, 10, 10, 11, 10, 10, 6, 9, 9,
|
|
11, 10, 10, 11, 10, 10,
|
|
};
|
|
|
|
static const uint8_t codebook23[] = {
|
|
2, 4, 4, 6, 6, 7, 7, 7, 7, 8, 8, 10, 5, 5, 6,
|
|
6, 7, 7, 8, 8, 8, 8, 10, 5, 5, 6, 6, 7, 7, 8,
|
|
8, 8, 8, 10, 6, 6, 7, 7, 8, 8, 8, 8, 8, 8, 10,
|
|
10, 10, 7, 7, 8, 7, 8, 8, 8, 8, 10, 10, 10, 8, 8,
|
|
8, 8, 8, 8, 8, 8, 10, 10, 10, 7, 8, 8, 8, 8, 8,
|
|
8, 8, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 10, 10,
|
|
10, 10, 10, 8, 8, 8, 8, 8, 8, 10, 10, 10, 10, 10, 9,
|
|
9, 8, 8, 9, 8, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8,
|
|
8,
|
|
};
|
|
|
|
static const uint8_t codebook24[] = {
|
|
1, 4, 4, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 6, 5,
|
|
5, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10, 7, 5, 5, 7,
|
|
7, 8, 8, 8, 8, 9, 9, 11, 10, 0, 8, 8, 8, 8, 9,
|
|
9, 9, 9, 10, 10, 11, 11, 0, 8, 8, 8, 8, 9, 9, 9,
|
|
9, 10, 10, 11, 11, 0, 12, 12, 9, 9, 10, 10, 10, 10, 11,
|
|
11, 11, 12, 0, 13, 13, 9, 9, 10, 10, 10, 10, 11, 11, 12,
|
|
12, 0, 0, 0, 10, 10, 10, 10, 11, 11, 12, 12, 12, 12, 0,
|
|
0, 0, 10, 10, 10, 10, 11, 11, 12, 12, 12, 12, 0, 0, 0,
|
|
14, 14, 11, 11, 11, 11, 12, 12, 13, 13, 0, 0, 0, 14, 14,
|
|
11, 11, 11, 11, 12, 12, 13, 13, 0, 0, 0, 0, 0, 12, 12,
|
|
12, 12, 13, 13, 14, 13, 0, 0, 0, 0, 0, 13, 13, 12, 12,
|
|
13, 12, 14, 13,
|
|
};
|
|
|
|
static const uint8_t codebook25[] = {
|
|
2, 4, 4, 5, 5, 6, 5, 5, 5, 5, 6, 4, 5, 5, 5,
|
|
6, 5, 5, 5, 5, 6, 6, 6, 5, 5,
|
|
};
|
|
|
|
static const uint8_t codebook26[] = {
|
|
1, 4, 4, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 4, 9,
|
|
8, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 9, 7, 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, 11, 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, 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, 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,
|
|
};
|
|
|
|
static const uint8_t codebook27[] = {
|
|
1, 4, 4, 6, 6, 7, 7, 8, 7, 9, 9, 10, 10, 10, 10,
|
|
6, 5, 5, 7, 7, 8, 8, 10, 8, 11, 10, 12, 12, 13, 13,
|
|
6, 5, 5, 7, 7, 8, 8, 10, 9, 11, 11, 12, 12, 13, 12,
|
|
18, 8, 8, 8, 8, 9, 9, 10, 9, 11, 10, 12, 12, 13, 13,
|
|
18, 8, 8, 8, 8, 9, 9, 10, 10, 11, 11, 13, 12, 14, 13,
|
|
18, 11, 11, 9, 9, 10, 10, 11, 11, 11, 12, 13, 12, 13, 14,
|
|
18, 11, 11, 9, 8, 11, 10, 11, 11, 11, 11, 12, 12, 14, 13,
|
|
18, 18, 18, 10, 11, 10, 11, 12, 12, 12, 12, 13, 12, 14, 13,
|
|
18, 18, 18, 10, 11, 11, 9, 12, 11, 12, 12, 12, 13, 13, 13,
|
|
18, 18, 17, 14, 14, 11, 11, 12, 12, 13, 12, 14, 12, 14, 13,
|
|
18, 18, 18, 14, 14, 11, 10, 12, 9, 12, 13, 13, 13, 13, 13,
|
|
18, 18, 17, 16, 18, 13, 13, 12, 12, 13, 11, 14, 12, 14, 14,
|
|
17, 18, 18, 17, 18, 13, 12, 13, 10, 12, 11, 14, 14, 14, 14,
|
|
17, 18, 18, 18, 18, 15, 16, 12, 12, 13, 10, 14, 12, 14, 15,
|
|
18, 18, 18, 16, 17, 16, 14, 12, 11, 13, 10, 13, 13, 14, 15,
|
|
};
|
|
|
|
static const uint8_t codebook28[] = {
|
|
2, 5, 5, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
|
|
8, 8, 10, 6, 6, 7, 7, 8, 7, 8, 8, 8, 8, 8, 9,
|
|
9, 9, 9, 9, 10, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
|
|
9, 9, 9, 9, 9, 9, 10, 7, 7, 7, 7, 8, 8, 8, 8,
|
|
9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 7, 7, 8, 8,
|
|
8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 8, 8,
|
|
8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10,
|
|
8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10,
|
|
10, 10, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10,
|
|
9, 10, 10, 10, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9,
|
|
9, 9, 9, 11, 10, 11, 11, 11, 9, 9, 9, 9, 9, 9, 10,
|
|
10, 9, 9, 10, 9, 11, 10, 11, 11, 11, 9, 9, 9, 9, 9,
|
|
9, 9, 9, 10, 10, 10, 9, 11, 11, 11, 11, 11, 9, 9, 9,
|
|
9, 10, 10, 9, 9, 9, 9, 10, 9, 11, 11, 11, 11, 11, 11,
|
|
11, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11,
|
|
11, 11, 11, 10, 9, 10, 10, 9, 10, 9, 9, 10, 9, 11, 10,
|
|
10, 11, 11, 11, 11, 9, 10, 9, 9, 9, 9, 10, 10, 10, 10,
|
|
11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 10, 9, 10, 9,
|
|
10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9,
|
|
9, 10, 10, 10,
|
|
};
|
|
|
|
static const struct {
|
|
int dim;
|
|
int len;
|
|
int real_len;
|
|
const uint8_t * clens;
|
|
int lookup;
|
|
float min;
|
|
float delta;
|
|
const uint8_t * quant;
|
|
} cvectors[] = {
|
|
{ 2, 16, 16, codebook0, 0 },
|
|
{ 2, 8, 8, codebook1, 0 },
|
|
{ 2, 256, 256, codebook2, 0 },
|
|
{ 2, 64, 64, codebook3, 0 },
|
|
{ 2, 128, 128, codebook4, 0 },
|
|
{ 2, 32, 32, codebook5, 0 },
|
|
{ 2, 96, 96, codebook6, 0 },
|
|
{ 2, 32, 32, codebook7, 0 },
|
|
{ 2, 96, 96, codebook8, 0 },
|
|
{ 2, 17, 17, codebook9, 0 },
|
|
{ 2, 32, 32, codebook10, 0 },
|
|
{ 2, 78, 78, codebook11, 0 },
|
|
{ 2, 17, 17, codebook12, 0 },
|
|
{ 2, 32, 32, codebook13, 0 },
|
|
{ 2, 78, 78, codebook14, 0 },
|
|
{ 2, 100, 100, codebook15, 0 },
|
|
{ 8, 1641, 6561, codebook16, 1, -1.0, 1.0, (const uint8_t[]){ 1, 0, 2, } },
|
|
{ 4, 443, 625, codebook17, 1, -2.0, 1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
|
|
{ 4, 105, 625, codebook18, 1, -2.0, 1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
|
|
{ 2, 68, 81, codebook19, 1, -4.0, 1.0, (const uint8_t[]){ 4, 3, 5, 2, 6, 1, 7, 0, 8, } },
|
|
{ 2, 81, 81, codebook20, 1, -4.0, 1.0, (const uint8_t[]){ 4, 3, 5, 2, 6, 1, 7, 0, 8, } },
|
|
{ 2, 289, 289, codebook21, 1, -8.0, 1.0, (const uint8_t[]){ 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16, } },
|
|
{ 4, 81, 81, codebook22, 1, -11.0, 11.0, (const uint8_t[]){ 1, 0, 2, } },
|
|
{ 2, 121, 121, codebook23, 1, -5.0, 1.0, (const uint8_t[]){ 5, 4, 6, 3, 7, 2, 8, 1, 9, 0, 10, } },
|
|
{ 2, 169, 169, codebook24, 1, -30.0, 5.0, (const uint8_t[]){ 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12, } },
|
|
{ 2, 25, 25, codebook25, 1, -2.0, 1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
|
|
{ 2, 169, 169, codebook26, 1, -1530.0, 255.0, (const uint8_t[]){ 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12, } },
|
|
{ 2, 225, 225, codebook27, 1, -119.0, 17.0, (const uint8_t[]){ 7, 6, 8, 5, 9, 4, 10, 3, 11, 2, 12, 1, 13, 0, 14, } },
|
|
{ 2, 289, 289, codebook28, 1, -8.0, 1.0, (const uint8_t[]){ 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16, } },
|
|
};
|
|
|
|
static inline void init_put_bits(PutBitContext * pb, uint8_t * buf, int buffer_len) {
|
|
pb->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;
|
|
}
|
|
}
|
|
|
|
static inline void flush_put_bits(PutBitContext * pb) {
|
|
}
|
|
|
|
static inline int put_bits_count(PutBitContext * pb) {
|
|
return pb->total_pos;
|
|
}
|
|
|
|
static inline void put_codeword(PutBitContext * pb, codebook_t * 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) return ff_vorbis_nth_root(entries, dimentions);
|
|
else if (lookup == 2) return dimentions * entries;
|
|
return 0;
|
|
}
|
|
|
|
static void ready_codebook(codebook_t * cb) {
|
|
int i;
|
|
|
|
ff_vorbis_len2vlc(cb->lens, cb->codewords, cb->nentries);
|
|
|
|
if (!cb->lookup) 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);
|
|
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
|
|
|
|
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];
|
|
div *= vals;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void ready_residue(residue_t * rc, venc_context_t * venc) {
|
|
int i;
|
|
assert(rc->type == 2);
|
|
rc->maxes = av_mallocz(sizeof(float[2]) * rc->classifications);
|
|
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;
|
|
if (j == 8) continue; // zero
|
|
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;
|
|
}
|
|
}
|
|
// 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) {
|
|
floor_t * fc;
|
|
residue_t * rc;
|
|
mapping_t * mc;
|
|
int i, book;
|
|
|
|
venc->channels = avccontext->channels;
|
|
venc->sample_rate = avccontext->sample_rate;
|
|
venc->blocksize[0] = venc->blocksize[1] = 11;
|
|
|
|
venc->ncodebooks = sizeof(cvectors)/sizeof(cvectors[0]);
|
|
venc->codebooks = av_malloc(sizeof(codebook_t) * venc->ncodebooks);
|
|
|
|
// codebook 0..14 - floor1 book, values 0..255
|
|
// codebook 15 residue masterbook
|
|
// codebook 16..29 residue
|
|
for (book = 0; book < venc->ncodebooks; book++) {
|
|
codebook_t * 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);
|
|
|
|
// just 1 floor
|
|
fc = &venc->floors[0];
|
|
fc->partitions = 8;
|
|
fc->partition_to_class = av_malloc(sizeof(int) * fc->partitions);
|
|
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;
|
|
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];
|
|
}
|
|
fc->multiplier = 2;
|
|
fc->rangebits = venc->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(floor1_entry_t) * fc->values);
|
|
fc->list[0].x = 0;
|
|
fc->list[1].x = 1 << fc->rangebits;
|
|
for (i = 2; i < fc->values; i++) {
|
|
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];
|
|
}
|
|
ff_vorbis_ready_floor1_list(fc->list, fc->values);
|
|
|
|
venc->nresidues = 1;
|
|
venc->residues = av_malloc(sizeof(residue_t) * venc->nresidues);
|
|
|
|
// single residue
|
|
rc = &venc->residues[0];
|
|
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);
|
|
|
|
// 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->residue = av_malloc(sizeof(int) * mc->submaps);
|
|
for (i = 0; i < mc->submaps; i++) {
|
|
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);
|
|
if (mc->coupling_steps) {
|
|
mc->magnitude[0] = 0;
|
|
mc->angle[0] = 1;
|
|
}
|
|
|
|
venc->nmodes = 1;
|
|
venc->modes = av_malloc(sizeof(vorbis_mode_t) * venc->nmodes);
|
|
|
|
// single mode
|
|
venc->modes[0].blockflag = 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->win[0] = ff_vorbis_vwin[venc->blocksize[0] - 6];
|
|
venc->win[1] = ff_vorbis_vwin[venc->blocksize[1] - 6];
|
|
|
|
ff_mdct_init(&venc->mdct[0], venc->blocksize[0], 0);
|
|
ff_mdct_init(&venc->mdct[1], venc->blocksize[1], 0);
|
|
}
|
|
|
|
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; }
|
|
res |= mant | (exp << 21);
|
|
put_bits(pb, 32, res);
|
|
}
|
|
|
|
static void put_codebook_header(PutBitContext * pb, codebook_t * cb) {
|
|
int i;
|
|
int ordered = 0;
|
|
|
|
put_bits(pb, 24, 0x564342); //magic
|
|
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;
|
|
|
|
put_bits(pb, 1, ordered);
|
|
if (ordered) {
|
|
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->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;
|
|
put_bits(pb, 1, sparse);
|
|
|
|
for (i = 0; i < cb->nentries; i++) {
|
|
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 bits = ilog(cb->quantlist[0]);
|
|
|
|
for (i = 1; i < tmp; i++) bits = FFMAX(bits, ilog(cb->quantlist[i]));
|
|
|
|
put_float(pb, cb->min);
|
|
put_float(pb, cb->delta);
|
|
|
|
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]);
|
|
}
|
|
}
|
|
|
|
static void put_floor_header(PutBitContext * pb, floor_t * 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->nclasses; i++) {
|
|
int j, books;
|
|
|
|
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);
|
|
|
|
books = (1 << fc->classes[i].subclass);
|
|
|
|
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);
|
|
}
|
|
|
|
static void put_residue_header(PutBitContext * pb, residue_t * rc) {
|
|
int i;
|
|
|
|
put_bits(pb, 16, rc->type);
|
|
|
|
put_bits(pb, 24, rc->begin);
|
|
put_bits(pb, 24, rc->end);
|
|
put_bits(pb, 24, rc->partition_size - 1);
|
|
put_bits(pb, 6, rc->classifications - 1);
|
|
put_bits(pb, 8, rc->classbook);
|
|
|
|
for (i = 0; i < rc->classifications; i++) {
|
|
int j, tmp = 0;
|
|
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);
|
|
}
|
|
|
|
for (i = 0; i < rc->classifications; i++) {
|
|
int j;
|
|
for (j = 0; j < 8; j++)
|
|
if (rc->books[i][j] != -1)
|
|
put_bits(pb, 8, rc->books[i][j]);
|
|
}
|
|
}
|
|
|
|
static int put_main_header(venc_context_t * venc, uint8_t ** out) {
|
|
int i;
|
|
PutBitContext pb;
|
|
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
|
|
|
|
flush_put_bits(&pb);
|
|
hlens[0] = (put_bits_count(&pb) + 7) / 8;
|
|
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
|
|
|
|
flush_put_bits(&pb);
|
|
hlens[1] = (put_bits_count(&pb) + 7) / 8;
|
|
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]);
|
|
|
|
// codebooks
|
|
put_bits(&pb, 8, venc->ncodebooks - 1);
|
|
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, 16, 0);
|
|
|
|
// floors
|
|
put_bits(&pb, 6, venc->nfloors - 1);
|
|
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]);
|
|
|
|
// mappings
|
|
put_bits(&pb, 6, venc->nmappings - 1);
|
|
for (i = 0; i < venc->nmappings; i++) {
|
|
mapping_t * 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);
|
|
|
|
put_bits(&pb, 1, !!mc->coupling_steps);
|
|
if (mc->coupling_steps) {
|
|
put_bits(&pb, 8, mc->coupling_steps - 1);
|
|
for (j = 0; j < mc->coupling_steps; j++) {
|
|
put_bits(&pb, ilog(venc->channels - 1), mc->magnitude[j]);
|
|
put_bits(&pb, ilog(venc->channels - 1), mc->angle[j]);
|
|
}
|
|
}
|
|
|
|
put_bits(&pb, 2, 0); // reserved
|
|
|
|
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
|
|
put_bits(&pb, 8, mc->floor[j]);
|
|
put_bits(&pb, 8, mc->residue[j]);
|
|
}
|
|
}
|
|
|
|
// modes
|
|
put_bits(&pb, 6, venc->nmodes - 1);
|
|
for (i = 0; i < venc->nmodes; i++) {
|
|
put_bits(&pb, 1, venc->modes[i].blockflag);
|
|
put_bits(&pb, 16, 0); // reserved window type
|
|
put_bits(&pb, 16, 0); // reserved transform type
|
|
put_bits(&pb, 8, venc->modes[i].mapping);
|
|
}
|
|
|
|
put_bits(&pb, 1, 1); // framing
|
|
|
|
flush_put_bits(&pb);
|
|
hlens[2] = (put_bits_count(&pb) + 7) / 8;
|
|
|
|
len = hlens[0] + hlens[1] + hlens[2];
|
|
p = *out = av_mallocz(64 + len + len/255);
|
|
|
|
*p++ = 2;
|
|
p += av_xiphlacing(p, hlens[0]);
|
|
p += av_xiphlacing(p, hlens[1]);
|
|
buffer_len = 0;
|
|
for (i = 0; i < 3; i++) {
|
|
memcpy(p, buffer + buffer_len, hlens[i]);
|
|
p += hlens[i];
|
|
buffer_len += hlens[i];
|
|
}
|
|
|
|
return p - *out;
|
|
}
|
|
|
|
static float get_floor_average(floor_t * 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(venc_context_t * venc, floor_t * fc, float * coeffs, int * 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++) tot_average += averages[i] = get_floor_average(fc, coeffs, 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;
|
|
|
|
average /= pow(average, 0.5) / tot_average * pow(0.8, 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) {
|
|
return y0 + (x - x0) * (y1 - y0) / (x1 - x0);
|
|
}
|
|
|
|
static void floor_encode(venc_context_t * venc, floor_t * fc, PutBitContext * pb, int * 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,
|
|
posts[fc->list[i].low],
|
|
fc->list[fc->list[i].high].x,
|
|
posts[fc->list[i].high],
|
|
fc->list[i].x);
|
|
int highroom = range - predicted;
|
|
int lowroom = predicted;
|
|
int room = FFMIN(highroom, lowroom);
|
|
if (predicted == posts[i]) {
|
|
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 (posts[i] > predicted) {
|
|
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;
|
|
}
|
|
}
|
|
|
|
counter = 2;
|
|
for (i = 0; i < fc->partitions; i++) {
|
|
floor_class_t * c = &fc->classes[fc->partition_to_class[i]];
|
|
int k, cval = 0, csub = 1<<c->subclass;
|
|
if (c->subclass) {
|
|
codebook_t * 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;
|
|
}
|
|
assert(l != csub);
|
|
cval |= l << cshift;
|
|
cshift += c->subclass;
|
|
}
|
|
put_codeword(pb, book, cval);
|
|
}
|
|
for (k = 0; k < c->dim; k++) {
|
|
int book = c->books[cval & (csub-1)];
|
|
int entry = coded[counter++];
|
|
cval >>= c->subclass;
|
|
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
|
|
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);
|
|
}
|
|
|
|
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;
|
|
if (!book->lens[i]) continue;
|
|
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_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 real_ch) {
|
|
int pass, i, j, p, k;
|
|
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;
|
|
|
|
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) {
|
|
if (fabs(coeffs[k / real_ch]) > max1) max1 = fabs(coeffs[k / real_ch]);
|
|
if (fabs(coeffs[samples + k / real_ch]) > max2) 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;
|
|
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;
|
|
|
|
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]);
|
|
int l;
|
|
for (l = 0; l < book->ndimentions; l++) buf[k + l] -= a[l];
|
|
}
|
|
} else {
|
|
for (k = 0; k < psize; k += book->ndimentions) {
|
|
int dim = book->ndimentions, s = rc->begin + p * psize + k, l;
|
|
float vec[dim], * a = vec;
|
|
for (l = s; l < s + dim; l++)
|
|
*a++ = coeffs[(l % real_ch) * samples + l / real_ch];
|
|
a = put_vector(book, pb, vec);
|
|
for (l = s; l < s + dim; l++)
|
|
coeffs[(l % real_ch) * samples + l / real_ch] -= *a++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int window(venc_context_t * 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.;
|
|
// FIXME use dsp
|
|
|
|
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);
|
|
}
|
|
} else {
|
|
for (channel = 0; channel < venc->channels; channel++) {
|
|
memset(venc->samples + channel*window_len*2, 0, sizeof(float)*window_len);
|
|
}
|
|
}
|
|
|
|
if (samples) {
|
|
for (channel = 0; channel < venc->channels; channel++) {
|
|
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];
|
|
}
|
|
} 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++) {
|
|
ff_mdct_calc(&venc->mdct[0], venc->coeffs + channel*window_len, venc->samples + channel*window_len*2, venc->floor/*tmp*/);
|
|
}
|
|
|
|
if (samples) {
|
|
for (channel = 0; channel < venc->channels; channel++) {
|
|
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];
|
|
}
|
|
venc->have_saved = 1;
|
|
} else {
|
|
venc->have_saved = 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int vorbis_encode_init(AVCodecContext * avccontext)
|
|
{
|
|
venc_context_t * venc = avccontext->priv_data;
|
|
|
|
if (avccontext->channels != 2) return -1;
|
|
|
|
create_vorbis_context(venc, avccontext);
|
|
|
|
if (avccontext->flags & CODEC_FLAG_QSCALE) venc->quality = avccontext->global_quality / (float)FF_QP2LAMBDA / 100.;
|
|
else venc->quality = 0.17;
|
|
|
|
avccontext->extradata_size = put_main_header(venc, (uint8_t**)&avccontext->extradata);
|
|
|
|
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)
|
|
{
|
|
venc_context_t * venc = avccontext->priv_data;
|
|
signed short * audio = data;
|
|
int samples = data ? avccontext->frame_size : 0;
|
|
vorbis_mode_t * mode;
|
|
mapping_t * mapping;
|
|
PutBitContext pb;
|
|
int i;
|
|
|
|
if (!window(venc, audio, samples)) return 0;
|
|
samples = 1 << (venc->blocksize[0] - 1);
|
|
|
|
init_put_bits(&pb, packets, buf_size);
|
|
|
|
put_bits(&pb, 1, 0); // magic bit
|
|
|
|
put_bits(&pb, ilog(venc->nmodes - 1), 0); // 0 bits, the mode
|
|
|
|
mode = &venc->modes[0];
|
|
mapping = &venc->mappings[mode->mapping];
|
|
if (mode->blockflag) {
|
|
put_bits(&pb, 1, 0);
|
|
put_bits(&pb, 1, 0);
|
|
}
|
|
|
|
for (i = 0; i < venc->channels; i++) {
|
|
floor_t * fc = &venc->floors[mapping->floor[mapping->mux[i]]];
|
|
int 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 < mapping->coupling_steps; i++) {
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
residue_encode(venc, &venc->residues[mapping->residue[mapping->mux[0]]], &pb, venc->coeffs, samples, venc->channels);
|
|
|
|
flush_put_bits(&pb);
|
|
return (put_bits_count(&pb) + 7) / 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++) {
|
|
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);
|
|
|
|
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);
|
|
}
|
|
av_freep(&venc->floors);
|
|
|
|
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);
|
|
}
|
|
av_freep(&venc->mappings);
|
|
|
|
av_freep(&venc->modes);
|
|
|
|
av_freep(&venc->saved);
|
|
av_freep(&venc->samples);
|
|
av_freep(&venc->floor);
|
|
av_freep(&venc->coeffs);
|
|
|
|
ff_mdct_end(&venc->mdct[0]);
|
|
ff_mdct_end(&venc->mdct[1]);
|
|
|
|
av_freep(&avccontext->coded_frame);
|
|
av_freep(&avccontext->extradata);
|
|
|
|
return 0 ;
|
|
}
|
|
|
|
AVCodec vorbis_encoder = {
|
|
"vorbis",
|
|
CODEC_TYPE_AUDIO,
|
|
CODEC_ID_VORBIS,
|
|
sizeof(venc_context_t),
|
|
vorbis_encode_init,
|
|
vorbis_encode_frame,
|
|
vorbis_encode_close,
|
|
.capabilities= CODEC_CAP_DELAY,
|
|
};
|