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twinvq: Prefix enums and defines shared with VoxWare MetaSound
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@ -33,26 +33,26 @@
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#include "twinvq_data.h"
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enum TwinVQFrameType {
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FT_SHORT = 0, ///< Short frame (divided in n sub-blocks)
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FT_MEDIUM, ///< Medium frame (divided in m<n sub-blocks)
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FT_LONG, ///< Long frame (single sub-block + PPC)
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FT_PPC, ///< Periodic Peak Component (part of the long frame)
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TWINVQ_FT_SHORT = 0, ///< Short frame (divided in n sub-blocks)
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TWINVQ_FT_MEDIUM, ///< Medium frame (divided in m<n sub-blocks)
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TWINVQ_FT_LONG, ///< Long frame (single sub-block + PPC)
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TWINVQ_FT_PPC, ///< Periodic Peak Component (part of the long frame)
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};
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#define PPC_SHAPE_CB_SIZE 64
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#define PPC_SHAPE_LEN_MAX 60
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#define SUB_AMP_MAX 4500.0
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#define MULAW_MU 100.0
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#define GAIN_BITS 8
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#define AMP_MAX 13000.0
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#define SUB_GAIN_BITS 5
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#define WINDOW_TYPE_BITS 4
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#define PGAIN_MU 200
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#define LSP_COEFS_MAX 20
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#define LSP_SPLIT_MAX 4
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#define CHANNELS_MAX 2
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#define SUBBLOCKS_MAX 16
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#define BARK_N_COEF_MAX 4
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#define TWINVQ_PPC_SHAPE_CB_SIZE 64
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#define TWINVQ_PPC_SHAPE_LEN_MAX 60
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#define TWINVQ_SUB_AMP_MAX 4500.0
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#define TWINVQ_MULAW_MU 100.0
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#define TWINVQ_GAIN_BITS 8
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#define TWINVQ_AMP_MAX 13000.0
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#define TWINVQ_SUB_GAIN_BITS 5
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#define TWINVQ_WINDOW_TYPE_BITS 4
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#define TWINVQ_PGAIN_MU 200
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#define TWINVQ_LSP_COEFS_MAX 20
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#define TWINVQ_LSP_SPLIT_MAX 4
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#define TWINVQ_CHANNELS_MAX 2
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#define TWINVQ_SUBBLOCKS_MAX 16
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#define TWINVQ_BARK_N_COEF_MAX 4
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/**
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* Parameters and tables that are different for each frame type
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@ -82,20 +82,20 @@ typedef struct TwinVQFrameData {
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enum TwinVQFrameType ftype;
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uint8_t main_coeffs[1024];
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uint8_t ppc_coeffs[PPC_SHAPE_LEN_MAX];
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uint8_t ppc_coeffs[TWINVQ_PPC_SHAPE_LEN_MAX];
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uint8_t gain_bits[CHANNELS_MAX];
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uint8_t sub_gain_bits[CHANNELS_MAX * SUBBLOCKS_MAX];
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uint8_t gain_bits[TWINVQ_CHANNELS_MAX];
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uint8_t sub_gain_bits[TWINVQ_CHANNELS_MAX * TWINVQ_SUBBLOCKS_MAX];
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uint8_t bark1[CHANNELS_MAX][SUBBLOCKS_MAX][BARK_N_COEF_MAX];
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uint8_t bark_use_hist[CHANNELS_MAX][SUBBLOCKS_MAX];
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uint8_t bark1[TWINVQ_CHANNELS_MAX][TWINVQ_SUBBLOCKS_MAX][TWINVQ_BARK_N_COEF_MAX];
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uint8_t bark_use_hist[TWINVQ_CHANNELS_MAX][TWINVQ_SUBBLOCKS_MAX];
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uint8_t lpc_idx1[CHANNELS_MAX];
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uint8_t lpc_idx2[CHANNELS_MAX][LSP_SPLIT_MAX];
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uint8_t lpc_hist_idx[CHANNELS_MAX];
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uint8_t lpc_idx1[TWINVQ_CHANNELS_MAX];
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uint8_t lpc_idx2[TWINVQ_CHANNELS_MAX][TWINVQ_LSP_SPLIT_MAX];
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uint8_t lpc_hist_idx[TWINVQ_CHANNELS_MAX];
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int p_coef[CHANNELS_MAX];
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int g_coef[CHANNELS_MAX];
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int p_coef[TWINVQ_CHANNELS_MAX];
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int g_coef[TWINVQ_CHANNELS_MAX];
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} TwinVQFrameData;
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/**
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@ -290,7 +290,7 @@ static void eval_lpcenv(TwinVQContext *tctx, const float *cos_vals, float *lpc)
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{
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int i;
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const TwinVQModeTab *mtab = tctx->mtab;
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int size_s = mtab->size / mtab->fmode[FT_SHORT].sub;
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int size_s = mtab->size / mtab->fmode[TWINVQ_FT_SHORT].sub;
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for (i = 0; i < size_s / 2; i++) {
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float cos_i = tctx->cos_tabs[0][i];
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@ -533,25 +533,25 @@ static void dec_gain(TwinVQContext *tctx,
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const TwinVQFrameData *bits = &tctx->bits;
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int i, j;
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int sub = mtab->fmode[ftype].sub;
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float step = AMP_MAX / ((1 << GAIN_BITS) - 1);
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float sub_step = SUB_AMP_MAX / ((1 << SUB_GAIN_BITS) - 1);
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float step = TWINVQ_AMP_MAX / ((1 << TWINVQ_GAIN_BITS) - 1);
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float sub_step = TWINVQ_SUB_AMP_MAX / ((1 << TWINVQ_SUB_GAIN_BITS) - 1);
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if (ftype == FT_LONG) {
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if (ftype == TWINVQ_FT_LONG) {
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for (i = 0; i < tctx->avctx->channels; i++)
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out[i] = (1.0 / (1 << 13)) *
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mulawinv(step * 0.5 + step * bits->gain_bits[i],
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AMP_MAX, MULAW_MU);
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TWINVQ_AMP_MAX, TWINVQ_MULAW_MU);
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} else {
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for (i = 0; i < tctx->avctx->channels; i++) {
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float val = (1.0 / (1 << 23)) *
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mulawinv(step * 0.5 + step * bits->gain_bits[i],
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AMP_MAX, MULAW_MU);
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TWINVQ_AMP_MAX, TWINVQ_MULAW_MU);
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for (j = 0; j < sub; j++)
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out[i * sub + j] =
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val * mulawinv(sub_step * 0.5 +
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sub_step * bits->sub_gain_bits[i * sub + j],
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SUB_AMP_MAX, MULAW_MU);
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TWINVQ_SUB_AMP_MAX, TWINVQ_MULAW_MU);
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}
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}
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}
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@ -625,13 +625,13 @@ static void dec_lpc_spectrum_inv(TwinVQContext *tctx, float *lsp,
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lsp[i] = 2 * cos(lsp[i]);
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switch (ftype) {
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case FT_LONG:
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case TWINVQ_FT_LONG:
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eval_lpcenv_2parts(tctx, ftype, lsp, lpc, size, 8);
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break;
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case FT_MEDIUM:
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case TWINVQ_FT_MEDIUM:
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eval_lpcenv_2parts(tctx, ftype, lsp, lpc, size, 2);
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break;
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case FT_SHORT:
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case TWINVQ_FT_SHORT:
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eval_lpcenv(tctx, lsp, lpc);
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break;
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}
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@ -652,9 +652,9 @@ static void imdct_and_window(TwinVQContext *tctx, enum TwinVQFrameType ftype,
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float *out2 = out;
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float *prev_buf;
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int types_sizes[] = {
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mtab->size / mtab->fmode[FT_LONG].sub,
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mtab->size / mtab->fmode[FT_MEDIUM].sub,
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mtab->size / (mtab->fmode[FT_SHORT].sub * 2),
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mtab->size / mtab->fmode[TWINVQ_FT_LONG].sub,
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mtab->size / mtab->fmode[TWINVQ_FT_MEDIUM].sub,
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mtab->size / (mtab->fmode[TWINVQ_FT_SHORT].sub * 2),
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};
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wsize = types_sizes[wtype_to_wsize[wtype]];
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@ -662,7 +662,7 @@ static void imdct_and_window(TwinVQContext *tctx, enum TwinVQFrameType ftype,
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prev_buf = prev + (size - bsize) / 2;
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for (j = 0; j < mtab->fmode[ftype].sub; j++) {
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int sub_wtype = ftype == FT_MEDIUM ? 8 : wtype;
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int sub_wtype = ftype == TWINVQ_FT_MEDIUM ? 8 : wtype;
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if (!j && wtype == 4)
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sub_wtype = 4;
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@ -682,7 +682,7 @@ static void imdct_and_window(TwinVQContext *tctx, enum TwinVQFrameType ftype,
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memcpy(out2, buf1 + bsize * j + wsize / 2,
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(bsize - wsize / 2) * sizeof(float));
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out2 += ftype == FT_MEDIUM ? (bsize - wsize) / 2 : bsize - wsize;
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out2 += ftype == TWINVQ_FT_MEDIUM ? (bsize - wsize) / 2 : bsize - wsize;
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prev_buf = buf1 + bsize * j + bsize / 2;
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}
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@ -757,8 +757,8 @@ static void read_and_decode_spectrum(TwinVQContext *tctx, float *out,
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int channels = tctx->avctx->channels;
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int sub = mtab->fmode[ftype].sub;
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int block_size = mtab->size / sub;
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float gain[CHANNELS_MAX * SUBBLOCKS_MAX];
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float ppc_shape[PPC_SHAPE_LEN_MAX * CHANNELS_MAX * 4];
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float gain[TWINVQ_CHANNELS_MAX * TWINVQ_SUBBLOCKS_MAX];
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float ppc_shape[TWINVQ_PPC_SHAPE_LEN_MAX * TWINVQ_CHANNELS_MAX * 4];
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int i, j;
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@ -768,16 +768,18 @@ static void read_and_decode_spectrum(TwinVQContext *tctx, float *out,
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dec_gain(tctx, ftype, gain);
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if (ftype == FT_LONG) {
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if (ftype == TWINVQ_FT_LONG) {
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int cb_len_p = (tctx->n_div[3] + mtab->ppc_shape_len * channels - 1) /
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tctx->n_div[3];
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dequant(tctx, bits->ppc_coeffs, ppc_shape, FT_PPC, mtab->ppc_shape_cb,
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mtab->ppc_shape_cb + cb_len_p * PPC_SHAPE_CB_SIZE, cb_len_p);
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dequant(tctx, bits->ppc_coeffs, ppc_shape,
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TWINVQ_FT_PPC, mtab->ppc_shape_cb,
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mtab->ppc_shape_cb + cb_len_p * TWINVQ_PPC_SHAPE_CB_SIZE,
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cb_len_p);
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}
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for (i = 0; i < channels; i++) {
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float *chunk = out + mtab->size * i;
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float lsp[LSP_COEFS_MAX];
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float lsp[TWINVQ_LSP_COEFS_MAX];
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for (j = 0; j < sub; j++) {
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dec_bark_env(tctx, bits->bark1[i][j], bits->bark_use_hist[i][j], i,
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@ -788,12 +790,12 @@ static void read_and_decode_spectrum(TwinVQContext *tctx, float *out,
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tctx->tmp_buf, block_size);
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}
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if (ftype == FT_LONG) {
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if (ftype == TWINVQ_FT_LONG) {
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float pgain_step = 25000.0 / ((1 << mtab->pgain_bit) - 1);
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float v = 1.0 / 8192 *
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mulawinv(pgain_step * bits->g_coef[i] +
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pgain_step / 2,
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25000.0, PGAIN_MU);
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25000.0, TWINVQ_PGAIN_MU);
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decode_ppc(tctx, bits->p_coef[i],
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ppc_shape + i * mtab->ppc_shape_len, v, chunk);
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@ -825,8 +827,9 @@ static void read_cb_data(TwinVQContext *tctx, GetBitContext *gb,
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}
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static const enum TwinVQFrameType wtype_to_ftype_table[] = {
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FT_LONG, FT_LONG, FT_SHORT, FT_LONG,
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FT_MEDIUM, FT_LONG, FT_LONG, FT_MEDIUM, FT_MEDIUM
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TWINVQ_FT_LONG, TWINVQ_FT_LONG, TWINVQ_FT_SHORT, TWINVQ_FT_LONG,
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TWINVQ_FT_MEDIUM, TWINVQ_FT_LONG, TWINVQ_FT_LONG, TWINVQ_FT_MEDIUM,
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TWINVQ_FT_MEDIUM
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};
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static int twinvq_read_bitstream(AVCodecContext *avctx, TwinVQContext *tctx,
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@ -842,7 +845,7 @@ static int twinvq_read_bitstream(AVCodecContext *avctx, TwinVQContext *tctx,
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init_get_bits(&gb, buf, buf_size * 8);
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skip_bits(&gb, get_bits(&gb, 8));
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bits->window_type = get_bits(&gb, WINDOW_TYPE_BITS);
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bits->window_type = get_bits(&gb, TWINVQ_WINDOW_TYPE_BITS);
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if (bits->window_type > 8) {
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av_log(avctx, AV_LOG_ERROR, "Invalid window type, broken sample?\n");
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@ -865,14 +868,15 @@ static int twinvq_read_bitstream(AVCodecContext *avctx, TwinVQContext *tctx,
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for (j = 0; j < sub; j++)
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bits->bark_use_hist[i][j] = get_bits1(&gb);
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if (bits->ftype == FT_LONG) {
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if (bits->ftype == TWINVQ_FT_LONG) {
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for (i = 0; i < channels; i++)
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bits->gain_bits[i] = get_bits(&gb, GAIN_BITS);
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bits->gain_bits[i] = get_bits(&gb, TWINVQ_GAIN_BITS);
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} else {
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for (i = 0; i < channels; i++) {
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bits->gain_bits[i] = get_bits(&gb, GAIN_BITS);
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bits->gain_bits[i] = get_bits(&gb, TWINVQ_GAIN_BITS);
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for (j = 0; j < sub; j++)
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bits->sub_gain_bits[i * sub + j] = get_bits(&gb, SUB_GAIN_BITS);
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bits->sub_gain_bits[i * sub + j] =
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get_bits(&gb, TWINVQ_SUB_GAIN_BITS);
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}
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}
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@ -884,7 +888,7 @@ static int twinvq_read_bitstream(AVCodecContext *avctx, TwinVQContext *tctx,
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bits->lpc_idx2[i][j] = get_bits(&gb, mtab->lsp_bit2);
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}
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if (bits->ftype == FT_LONG) {
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if (bits->ftype == TWINVQ_FT_LONG) {
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read_cb_data(tctx, &gb, bits->ppc_coeffs, 3);
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for (i = 0; i < channels; i++) {
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bits->p_coef[i] = get_bits(&gb, mtab->ppc_period_bit);
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@ -949,8 +953,8 @@ static av_cold int init_mdct_win(TwinVQContext *tctx)
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{
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int i, j, ret;
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const TwinVQModeTab *mtab = tctx->mtab;
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int size_s = mtab->size / mtab->fmode[FT_SHORT].sub;
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int size_m = mtab->size / mtab->fmode[FT_MEDIUM].sub;
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int size_s = mtab->size / mtab->fmode[TWINVQ_FT_SHORT].sub;
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int size_m = mtab->size / mtab->fmode[TWINVQ_FT_MEDIUM].sub;
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int channels = tctx->avctx->channels;
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float norm = channels == 1 ? 2.0 : 1.0;
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@ -1012,12 +1016,12 @@ static void permutate_in_line(int16_t *tab, int num_vect, int num_blocks,
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for (i = 0; i < line_len[0]; i++) {
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int shift;
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if (num_blocks == 1 ||
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(ftype == FT_LONG && num_vect % num_blocks) ||
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(ftype != FT_LONG && num_vect & 1) ||
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if (num_blocks == 1 ||
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(ftype == TWINVQ_FT_LONG && num_vect % num_blocks) ||
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(ftype != TWINVQ_FT_LONG && num_vect & 1) ||
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i == line_len[1]) {
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shift = 0;
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} else if (ftype == FT_LONG) {
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} else if (ftype == TWINVQ_FT_LONG) {
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shift = i;
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} else
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shift = i * i;
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@ -1069,7 +1073,7 @@ static av_cold void construct_perm_table(TwinVQContext *tctx,
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const TwinVQModeTab *mtab = tctx->mtab;
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int16_t *tmp_perm = (int16_t *)tctx->tmp_buf;
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if (ftype == FT_PPC) {
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if (ftype == TWINVQ_FT_PPC) {
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size = tctx->avctx->channels;
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block_size = mtab->ppc_shape_len;
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} else {
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@ -1111,12 +1115,13 @@ static av_cold void init_bitstream_params(TwinVQContext *tctx)
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mtab->fmode[i].bark_n_bit + 1);
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bsize_no_main_cb[2] = bse_bits[2] + lsp_bits_per_block + ppc_bits +
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WINDOW_TYPE_BITS + n_ch * GAIN_BITS;
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TWINVQ_WINDOW_TYPE_BITS + n_ch * TWINVQ_GAIN_BITS;
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for (i = 0; i < 2; i++)
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bsize_no_main_cb[i] =
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lsp_bits_per_block + n_ch * GAIN_BITS + WINDOW_TYPE_BITS +
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mtab->fmode[i].sub * (bse_bits[i] + n_ch * SUB_GAIN_BITS);
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lsp_bits_per_block + n_ch * TWINVQ_GAIN_BITS +
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TWINVQ_WINDOW_TYPE_BITS +
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mtab->fmode[i].sub * (bse_bits[i] + n_ch * TWINVQ_SUB_GAIN_BITS);
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// The remaining bits are all used for the main spectrum coefficients
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for (i = 0; i < 4; i++) {
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@ -1153,7 +1158,7 @@ static av_cold void init_bitstream_params(TwinVQContext *tctx)
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tctx->length_change[i] = num_rounded_up;
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}
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for (frametype = FT_SHORT; frametype <= FT_PPC; frametype++)
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for (frametype = TWINVQ_FT_SHORT; frametype <= TWINVQ_FT_PPC; frametype++)
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construct_perm_table(tctx, frametype);
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}
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@ -1210,7 +1215,7 @@ static av_cold int twinvq_decode_init(AVCodecContext *avctx)
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break;
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}
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if (avctx->channels <= 0 || avctx->channels > CHANNELS_MAX) {
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if (avctx->channels <= 0 || avctx->channels > TWINVQ_CHANNELS_MAX) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %i\n",
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avctx->channels);
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return -1;
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