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Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Diego Biurrun
2011-06-23 22:41:54 +02:00
parent 9abbe8cc13
commit adbfc605f6
38 changed files with 259 additions and 259 deletions
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42
libavcodec/lsp.h
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@@ -30,12 +30,12 @@
*/
/**
* \brief ensure a minimum distance between LSFs
* \param[in,out] lsfq LSF to check and adjust
* \param lsfq_min_distance minimum distance between LSFs
* \param lsfq_min minimum allowed LSF value
* \param lsfq_max maximum allowed LSF value
* \param lp_order LP filter order
* @brief ensure a minimum distance between LSFs
* @param[in,out] lsfq LSF to check and adjust
* @param lsfq_min_distance minimum distance between LSFs
* @param lsfq_min minimum allowed LSF value
* @param lsfq_max maximum allowed LSF value
* @param lp_order LP filter order
*/
void ff_acelp_reorder_lsf(int16_t* lsfq, int lsfq_min_distance, int lsfq_min, int lsfq_max, int lp_order);
@@ -53,12 +53,12 @@ void ff_acelp_reorder_lsf(int16_t* lsfq, int lsfq_min_distance, int lsfq_min, in
void ff_set_min_dist_lsf(float *lsf, double min_spacing, int size);
/**
* \brief Convert LSF to LSP
* \param[out] lsp LSP coefficients (-0x8000 <= (0.15) < 0x8000)
* \param lsf normalized LSF coefficients (0 <= (2.13) < 0x2000 * PI)
* \param lp_order LP filter order
* @brief Convert LSF to LSP
* @param[out] lsp LSP coefficients (-0x8000 <= (0.15) < 0x8000)
* @param lsf normalized LSF coefficients (0 <= (2.13) < 0x2000 * PI)
* @param lp_order LP filter order
*
* \remark It is safe to pass the same array into the lsf and lsp parameters.
* @remark It is safe to pass the same array into the lsf and lsp parameters.
*/
void ff_acelp_lsf2lsp(int16_t *lsp, const int16_t *lsf, int lp_order);
@@ -68,10 +68,10 @@ void ff_acelp_lsf2lsp(int16_t *lsp, const int16_t *lsf, int lp_order);
void ff_acelp_lsf2lspd(double *lsp, const float *lsf, int lp_order);
/**
* \brief LSP to LP conversion (3.2.6 of G.729)
* \param[out] lp decoded LP coefficients (-0x8000 <= (3.12) < 0x8000)
* \param lsp LSP coefficients (-0x8000 <= (0.15) < 0x8000)
* \param lp_half_order LP filter order, divided by 2
* @brief LSP to LP conversion (3.2.6 of G.729)
* @param[out] lp decoded LP coefficients (-0x8000 <= (3.12) < 0x8000)
* @param lsp LSP coefficients (-0x8000 <= (0.15) < 0x8000)
* @param lp_half_order LP filter order, divided by 2
*/
void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp, int lp_half_order);
@@ -81,12 +81,12 @@ void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp, int lp_half_order);
void ff_amrwb_lsp2lpc(const double *lsp, float *lp, int lp_order);
/**
* \brief Interpolate LSP for the first subframe and convert LSP -> LP for both subframes (3.2.5 and 3.2.6 of G.729)
* \param[out] lp_1st decoded LP coefficients for first subframe (-0x8000 <= (3.12) < 0x8000)
* \param[out] lp_2nd decoded LP coefficients for second subframe (-0x8000 <= (3.12) < 0x8000)
* \param lsp_2nd LSP coefficients of the second subframe (-0x8000 <= (0.15) < 0x8000)
* \param lsp_prev LSP coefficients from the second subframe of the previous frame (-0x8000 <= (0.15) < 0x8000)
* \param lp_order LP filter order
* @brief Interpolate LSP for the first subframe and convert LSP -> LP for both subframes (3.2.5 and 3.2.6 of G.729)
* @param[out] lp_1st decoded LP coefficients for first subframe (-0x8000 <= (3.12) < 0x8000)
* @param[out] lp_2nd decoded LP coefficients for second subframe (-0x8000 <= (3.12) < 0x8000)
* @param lsp_2nd LSP coefficients of the second subframe (-0x8000 <= (0.15) < 0x8000)
* @param lsp_prev LSP coefficients from the second subframe of the previous frame (-0x8000 <= (0.15) < 0x8000)
* @param lp_order LP filter order
*/
void ff_acelp_lp_decode(int16_t* lp_1st, int16_t* lp_2nd, const int16_t* lsp_2nd, const int16_t* lsp_prev, int lp_order);