diff options
Diffstat (limited to 'libavcodec/qcelpdata.h')
| -rw-r--r-- | libavcodec/qcelpdata.h | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/libavcodec/qcelpdata.h b/libavcodec/qcelpdata.h index 319833e904..931c990b09 100644 --- a/libavcodec/qcelpdata.h +++ b/libavcodec/qcelpdata.h @@ -2,20 +2,20 @@ * QCELP decoder * Copyright (c) 2007 Reynaldo H. Verdejo Pinochet * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -26,7 +26,7 @@ * @file * Data tables for the QCELP decoder * @author Reynaldo H. Verdejo Pinochet - * @remark Libav merging spearheaded by Kenan Gillet + * @remark FFmpeg merging spearheaded by Kenan Gillet * @remark Development mentored by Benjamin Larson */ @@ -66,7 +66,7 @@ typedef struct QCELPFrame { } QCELPFrame; /** - * pre-calculated table for hammsinc function + * Pre-calculated table for hammsinc function. * Only half of the table is needed because of symmetry. * * TIA/EIA/IS-733 2.4.5.2-2/3 @@ -82,7 +82,7 @@ typedef struct QCELPBitmap { #define QCELP_OF(variable, bit, len) {offsetof(QCELPFrame, variable), bit, len} /** - * bitmap unpacking tables for RATE_FULL + * Bitmap unpacking tables for RATE_FULL * * TIA/EIA/IS-733 Table 2.4.7.1-1 */ @@ -169,7 +169,7 @@ static const QCELPBitmap qcelp_rate_full_bitmap[] = { }; /** - * bitmap unpacking tables for RATE_HALF + * Bitmap unpacking tables for RATE_HALF * * TIA/EIA/IS-733 Table 2.4.7.2-1 */ @@ -211,7 +211,7 @@ static const QCELPBitmap qcelp_rate_half_bitmap[] = { }; /** - * bitmap unpacking tables for RATE_QUARTER + * Bitmap unpacking tables for RATE_QUARTER * * TIA/EIA/IS-733 Table 2.4.7.3-1 */ @@ -232,7 +232,7 @@ static const QCELPBitmap qcelp_rate_quarter_bitmap[] = { }; /** - * bitmap unpacking tables for RATE_OCTAVE + * Bitmap unpacking tables for RATE_OCTAVE * * trick: CBSEED is written into QCELPContext.cbsign[15], * which is not used for RATE_OCTAVE. @@ -257,12 +257,12 @@ static const QCELPBitmap qcelp_rate_octave_bitmap[] = { QCELP_OF(lspv [8], 0, 1), // 8 QCELP_OF(cbsign[15], 0, 1), // 7 QCELP_OF(lspv [9], 0, 1), // 6 - QCELP_OF(cbgain [0], 0, 2), // 7 + QCELP_OF(cbgain [0], 0, 2), // 5 QCELP_OF(reserved, 0, 4) // 3 }; /** - * position of the bitmapping data for each packet type in + * Bitmapping data position for each packet type in * the QCELPContext */ static const QCELPBitmap * const qcelp_unpacking_bitmaps_per_rate[5] = { @@ -420,12 +420,12 @@ static const qcelp_vector * const qcelp_lspvq[5] = { }; /** - * the final gain scalefactor before clipping into a usable output float + * The final gain scalefactor before clipping into a usable output float */ #define QCELP_SCALE 8192. /** - * table for computing Ga (decoded linear codebook gain magnitude) + * Table for computing Ga (decoded linear codebook gain magnitude) * * @note The table could fit in int16_t in x*8 form, but it seems * to be slower on x86 @@ -452,7 +452,7 @@ static const float qcelp_g12ga[61] = { 1000.000/QCELP_SCALE}; /** - * circular codebook for rate 1 frames in x*100 form + * Circular codebook for rate 1 frames in x*100 form * * TIA/EIA/IS-733 2.4.6.1-2 */ @@ -477,7 +477,7 @@ static const int16_t qcelp_rate_full_codebook[128] = { #define QCELP_RATE_FULL_CODEBOOK_RATIO .01 /** - * circular codebook for rate 1/2 frames in x*2 form + * Circular codebook for rate 1/2 frames in x*2 form * * TIA/EIA/IS-733 2.4.6.1-1 */ @@ -511,7 +511,7 @@ static const int8_t qcelp_rate_half_codebook[128] = { #define QCELP_SQRT1887 1.373681186 /** - * table for impulse response of BPF used to filter + * Table for impulse response of BPF used to filter * the white excitation for bitrate 1/4 synthesis * * Only half the tables are needed because of symmetry. @@ -526,14 +526,14 @@ static const double qcelp_rnd_fir_coefs[11] = { /** * This spread factor is used, for bitrate 1/8 and I_F_Q, - * to force the LSP frequencies to be at least 80 Hz apart. + * to force LSP frequencies to be at least 80 Hz apart. * * TIA/EIA/IS-733 2.4.3.3.2 */ #define QCELP_LSP_SPREAD_FACTOR 0.02 /** - * predictor coefficient for the conversion of LSP codes + * Predictor coefficient for the conversion of LSP codes * to LSP frequencies for 1/8 and I_F_Q * * TIA/EIA/IS-733 2.4.3.2.7-2 @@ -541,7 +541,7 @@ static const double qcelp_rnd_fir_coefs[11] = { #define QCELP_LSP_OCTAVE_PREDICTOR 29.0/32 /** - * initial coefficient to perform bandwidth expansion on LPC + * Initial coefficient to perform bandwidth expansion on LPC * * @note: 0.9883 looks like an approximation of 253/256. * |