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| author | Marcelo Galvăo Póvoa <marspeoplester@gmail.com> | 2010-09-07 20:46:29 +0000 |
|---|---|---|
| committer | Vitor Sessak <vitor1001@gmail.com> | 2010-09-07 20:46:29 +0000 |
| commit | 48ac225db2563fe534b1d9e999bf8e70d5a577f8 (patch) | |
| tree | aed733027f03e4d14b906a7c70b450a7eb681340 /libavcodec/lsp.h | |
| parent | 1d96cc08652072730e64ecb45df81b608a015a38 (diff) | |
| download | ffmpeg-48ac225db2563fe534b1d9e999bf8e70d5a577f8.tar.gz | |
Move lsp2lpc_sipr() function to common code so it can be reused in a
AMRWB decoder.
Patch by Marcelo Galvăo Póvoa.
Originally committed as revision 25062 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/lsp.h')
| -rw-r--r-- | libavcodec/lsp.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/lsp.h b/libavcodec/lsp.h index 2c22058062..e3af30d300 100644 --- a/libavcodec/lsp.h +++ b/libavcodec/lsp.h @@ -76,6 +76,11 @@ void ff_acelp_lsf2lspd(double *lsp, const float *lsf, int lp_order); void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp, int lp_half_order); /** + * LSP to LP conversion (5.2.4 of AMR-WB) + */ +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) |