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| author | Vitor Sessak <vitor1001@gmail.com> | 2009-11-10 04:17:18 +0000 |
|---|---|---|
| committer | Vitor Sessak <vitor1001@gmail.com> | 2009-11-10 04:17:18 +0000 |
| commit | 00fa73f052c1c0c0185ee4d2accb8fba065132f1 (patch) | |
| tree | d1f9769436eecb37456bcf13c71d74478e181c0d /libavcodec/lsp.h | |
| parent | dccda293a0576d5414fafc0e95615c82a2f2399f (diff) | |
| download | ffmpeg-00fa73f052c1c0c0185ee4d2accb8fba065132f1.tar.gz | |
Avoid variable-length array use in ff_acelp_lspd2lpc()
Originally committed as revision 20496 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 7201d5015b..18d9772b55 100644 --- a/libavcodec/lsp.h +++ b/libavcodec/lsp.h @@ -80,11 +80,16 @@ void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp, int lp_half_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); + +#define MAX_LP_HALF_ORDER 8 + /** * Reconstructs LPC coefficients from the line spectral pair frequencies. * * @param lsp line spectral pairs in cosine domain * @param lpc linear predictive coding coefficients + * @param lp_half_order half the number of the amount of LPCs to be + * reconstructed, need to be smaller or equal to MAX_LP_HALF_ORDER * * @note buffers should have a minimux size of 2*lp_half_order elements. * |