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@ -48,7 +48,7 @@ extern const uint8_t ff_fc_4pulses_8bits_tracks_13[16]; |
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* | | 4, 9, 14, 19, 24, 29, 34, 39, 44, 49, 54, 59, 64, 69, 74, 79 |
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* ------------------------------------------------------------------------- |
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* |
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* \remark Track in the table should be read top-to-bottom, left-to-right. |
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* @remark Track in the table should be read top-to-bottom, left-to-right. |
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* |
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* Used in G.729 @8k, G.729 @4.4k, AMR @7.95k, AMR @7.40k |
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*/ |
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@ -61,9 +61,9 @@ extern const uint8_t ff_fc_4pulses_8bits_track_4[32]; |
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* | | 3, 8, 13, 18, 23, 28, 33, 38 |
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* ----------------------------------------- |
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* |
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* \remark Track in the table should be read top-to-bottom, left-to-right. |
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* @remark Track in the table should be read top-to-bottom, left-to-right. |
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* |
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* \note (EE) Reference G.729D code also uses gray decoding for each |
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* @note (EE) Reference G.729D code also uses gray decoding for each |
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* pulse index before looking up the value in the table. |
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* |
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* Used in G.729 @6.4k (with gray coding), AMR @5.9k (without gray coding) |
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@ -80,9 +80,9 @@ extern const uint8_t ff_fc_2pulses_9bits_track1_gray[16]; |
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* | | 5,12, 19, 25, 32, 39, 16, 36 |
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* ----------------------------------------- |
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* |
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* \remark Track in the table should be read top-to-bottom, left-to-right. |
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* @remark Track in the table should be read top-to-bottom, left-to-right. |
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* |
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* \note (EE.1) This table (from the reference code) does not comply with |
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* @note (EE.1) This table (from the reference code) does not comply with |
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* the specification. |
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* The specification contains the following table: |
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* |
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@ -95,7 +95,7 @@ extern const uint8_t ff_fc_2pulses_9bits_track1_gray[16]; |
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* |
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* ----------------------------------------- |
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* |
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* \note (EE.2) Reference G.729D code also uses gray decoding for each |
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* @note (EE.2) Reference G.729D code also uses gray decoding for each |
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* pulse index before looking up the value in the table. |
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* |
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* Used in G.729 @6.4k (with gray coding) |
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@ -103,16 +103,16 @@ extern const uint8_t ff_fc_2pulses_9bits_track1_gray[16]; |
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extern const uint8_t ff_fc_2pulses_9bits_track2_gray[32]; |
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/**
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* \brief Decode fixed-codebook vector (3.8 and D.5.8 of G.729, 5.7.1 of AMR). |
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* \param fc_v [out] decoded fixed codebook vector (2.13) |
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* \param tab1 table used for first pulse_count pulses |
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* \param tab2 table used for last pulse |
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* \param pulse_indexes fixed codebook indexes |
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* \param pulse_signs signs of the excitation pulses (0 bit value |
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* Decode fixed-codebook vector (3.8 and D.5.8 of G.729, 5.7.1 of AMR). |
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* @param fc_v [out] decoded fixed codebook vector (2.13) |
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* @param tab1 table used for first pulse_count pulses |
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* @param tab2 table used for last pulse |
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* @param pulse_indexes fixed codebook indexes |
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* @param pulse_signs signs of the excitation pulses (0 bit value |
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* means negative sign) |
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* \param bits number of bits per one pulse index |
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* \param pulse_count number of pulses decoded using first table |
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* \param bits length of one pulse index in bits |
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* @param bits number of bits per one pulse index |
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* @param pulse_count number of pulses decoded using first table |
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* @param bits length of one pulse index in bits |
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* |
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* Used in G.729 @8k, G.729 @4.4k, G.729 @6.4k, AMR @7.95k, AMR @7.40k |
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*/ |
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@ -126,17 +126,17 @@ void ff_acelp_fc_pulse_per_track( |
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int bits); |
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/**
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* \brief weighted sum of two vectors with rounding |
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* \param out [out] result of addition |
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* \param in_a first vector |
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* \param in_b second vector |
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* \param weight_coeff_a first vector weight coefficient |
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* \param weight_coeff_a second vector weight coefficient |
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* \param rounder this value will be added to the sum of the two vectors |
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* \param shift result will be shifted to right by this value |
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* \param length vectors length |
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* |
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* \note It is safe to pass the same buffer for out and in_a or in_b. |
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* weighted sum of two vectors with rounding. |
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* @param out [out] result of addition |
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* @param in_a first vector |
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* @param in_b second vector |
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* @param weight_coeff_a first vector weight coefficient |
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* @param weight_coeff_a second vector weight coefficient |
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* @param rounder this value will be added to the sum of the two vectors |
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* @param shift result will be shifted to right by this value |
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* @param length vectors length |
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* |
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* @note It is safe to pass the same buffer for out and in_a or in_b. |
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* |
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* out[i] = (in_a[i]*weight_a+in_b[i]*weight_b+rounder) >> shift |
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*/ |
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