From 89a2713e660688175a40ce93e470b24421d27682 Mon Sep 17 00:00:00 2001 From: Vitor Sessak Date: Mon, 23 Jun 2008 20:12:12 +0000 Subject: [PATCH] Add doxy comment Originally committed as revision 13917 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/ra144.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libavcodec/ra144.c b/libavcodec/ra144.c index bf1266904e..fb31714511 100644 --- a/libavcodec/ra144.c +++ b/libavcodec/ra144.c @@ -136,6 +136,13 @@ static void add_wav(int n, int skip_first, int *m, const int16_t *s1, dest[i] = ((*(s1++))*v[0] + (*(s2++))*v[1] + (*(s3++))*v[2]) >> 12; } +/** + * LPC Filter. Each output value is predicted from the 10 previous computed + * ones. It overwrites the input with the output. + * + * @param in the input of the filter. It should be an array of size len + 10. + * The 10 first input values are used to evaluate the first filtered one. + */ static void lpc_filter(const int16_t *lpc_coefs, uint16_t *in, int len) { int x, i;