*/
/**
- * @file vorbis_enc.c
+ * @file libavcodec/vorbis_enc.c
* Native Vorbis encoder.
* @author Oded Shimon <ods15@ods15.dyndns.org>
*/
#include "vorbis.h"
#include "vorbis_enc_data.h"
+#define BITSTREAM_WRITER_LE
+#include "put_bits.h"
+
#undef NDEBUG
#include <assert.h>
int * quantlist;
float * dimentions;
float * pow2;
-} codebook_t;
+} vorbis_enc_codebook;
typedef struct {
int dim;
int subclass;
int masterbook;
int * books;
-} floor_class_t;
+} vorbis_enc_floor_class;
typedef struct {
int partitions;
int * partition_to_class;
int nclasses;
- floor_class_t * classes;
+ vorbis_enc_floor_class * classes;
int multiplier;
int rangebits;
int values;
- floor1_entry_t * list;
-} floor_t;
+ vorbis_floor1_entry * list;
+} vorbis_enc_floor;
typedef struct {
int type;
int classbook;
int8_t (*books)[8];
float (*maxes)[2];
-} residue_t;
+} vorbis_enc_residue;
typedef struct {
int submaps;
int coupling_steps;
int * magnitude;
int * angle;
-} mapping_t;
+} vorbis_enc_mapping;
typedef struct {
int blockflag;
int mapping;
-} vorbis_mode_t;
+} vorbis_enc_mode;
typedef struct {
int channels;
float quality;
int ncodebooks;
- codebook_t * codebooks;
+ vorbis_enc_codebook * codebooks;
int nfloors;
- floor_t * floors;
+ vorbis_enc_floor * floors;
int nresidues;
- residue_t * residues;
+ vorbis_enc_residue * residues;
int nmappings;
- mapping_t * mappings;
+ vorbis_enc_mapping * mappings;
int nmodes;
- vorbis_mode_t * modes;
-} venc_context_t;
-
-typedef struct {
- int total;
- int total_pos;
- int pos;
- uint8_t * buf_ptr;
-} PutBitContext;
-
-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;
- }
-}
+ vorbis_enc_mode * modes;
-static inline void flush_put_bits(PutBitContext * pb) {
-}
-
-static inline int put_bits_count(PutBitContext * pb) {
- return pb->total_pos;
-}
+ int64_t sample_count;
+} vorbis_enc_context;
-static inline void put_codeword(PutBitContext * pb, codebook_t * cb, int entry) {
+static inline void put_codeword(PutBitContext * pb, vorbis_enc_codebook * cb, int entry) {
assert(entry >= 0);
assert(entry < cb->nentries);
assert(cb->lens[entry]);
return 0;
}
-static void ready_codebook(codebook_t * cb) {
+static void ready_codebook(vorbis_enc_codebook * cb) {
int i;
ff_vorbis_len2vlc(cb->lens, cb->codewords, cb->nentries);
}
}
-static void ready_residue(residue_t * rc, venc_context_t * venc) {
+static void ready_residue(vorbis_enc_residue * rc, vorbis_enc_context * 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;
+ vorbis_enc_codebook * cb;
for (j = 0; j < 8; j++)
if (rc->books[i][j] != -1) break;
if (j == 8) continue; // zero
}
}
-static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccontext) {
- 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->sample_rate = avccontext->sample_rate;
venc->log2_blocksize[0] = venc->log2_blocksize[1] = 11;
- venc->ncodebooks = sizeof(cvectors)/sizeof(cvectors[0]);
- venc->codebooks = av_malloc(sizeof(codebook_t) * venc->ncodebooks);
+ venc->ncodebooks = FF_ARRAY_ELEMS(cvectors);
+ venc->codebooks = av_malloc(sizeof(vorbis_enc_codebook) * 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];
+ vorbis_enc_codebook * cb = &venc->codebooks[book];
int vals;
cb->ndimentions = cvectors[book].dim;
cb->nentries = cvectors[book].real_len;
}
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->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;
c->dim = floor_classes[i].dim;
c->subclass = floor_classes[i].subclass;
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 = 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++) {
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];
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];
}
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;
put_bits(pb, 32, 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;
}
}
-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, 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);
}
}
-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;
// 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
return p - *out;
}
-static float get_floor_average(floor_t * fc, float * coeffs, int i) {
+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;
return average / (end - begin);
}
-static void floor_fit(venc_context_t * venc, floor_t * fc, float * coeffs, uint_fast16_t * posts, int samples) {
+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.;
return y0 + (x - x0) * (y1 - y0) / (x1 - x0);
}
-static void floor_encode(venc_context_t * venc, floor_t * fc, PutBitContext * pb, uint_fast16_t * 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;
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<<c->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;
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) {
+static float * put_vector(vorbis_enc_codebook * book, PutBitContext * pb, float * num) {
int i, entry = -1;
float distance = FLT_MAX;
assert(book->dimentions);
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) {
+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 partitions = (rc->end - rc->begin) / psize;
while (p < partitions) {
if (pass == 0)
for (j = 0; j < channels; j++) {
- codebook_t * book = &venc->codebooks[rc->classbook];
+ vorbis_enc_codebook * book = &venc->codebooks[rc->classbook];
int entry = 0;
for (i = 0; i < classwords; i++) {
entry *= rc->classifications;
for (i = 0; i < classwords && p < partitions; i++, p++) {
for (j = 0; j < channels; j++) {
int nbook = rc->books[classes[j][p]][pass];
- codebook_t * book = &venc->codebooks[nbook];
+ vorbis_enc_codebook * book = &venc->codebooks[nbook];
float * buf = coeffs + samples*j + rc->begin + p*psize;
if (nbook == -1) continue;
}
}
-static int apply_window_and_mdct(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->log2_blocksize[0] - 1);
}
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*/);
+ ff_mdct_calc(&venc->mdct[0], venc->coeffs + channel*window_len, venc->samples + channel*window_len*2);
}
if (samples) {
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");
static int vorbis_encode_frame(AVCodecContext * avccontext, unsigned char * packets, int buf_size, void *data)
{
- venc_context_t * venc = avccontext->priv_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;
}
for (i = 0; i < venc->channels; i++) {
- floor_t * fc = &venc->floors[mapping->floor[mapping->mux[i]]];
+ 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);
residue_encode(venc, &venc->residues[mapping->residue[mapping->mux[0]]], &pb, venc->coeffs, samples, venc->channels);
+ avccontext->coded_frame->pts = venc->sample_count;
+ venc->sample_count += avccontext->frame_size;
flush_put_bits(&pb);
return (put_bits_count(&pb) + 7) / 8;
}
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)
"vorbis",
CODEC_TYPE_AUDIO,
CODEC_ID_VORBIS,
- sizeof(venc_context_t),
+ sizeof(vorbis_enc_context),
vorbis_encode_init,
vorbis_encode_frame,
vorbis_encode_close,
projects / frescor / ffmpeg.git / blobdiff