From 2f7d6835b6b8767d0931f40590aefb2fd9e78019 Mon Sep 17 00:00:00 2001 From: Vitor Sessak Date: Sat, 31 May 2008 15:37:41 +0000 Subject: [PATCH] Add doxy comments to eq() and do_voice() Originally committed as revision 13581 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/ra144.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/libavcodec/ra144.c b/libavcodec/ra144.c index 920582758b..b28dea9ca1 100644 --- a/libavcodec/ra144.c +++ b/libavcodec/ra144.c @@ -71,7 +71,10 @@ static int t_sqrt(unsigned int x) return (ff_sqrt(x << 20) << s) << 2; } -/* do 'voice' */ +/** + * Evaluate the LPC filter coefficients from the reflection coefficients. + * Does the inverse of the eq() function. + */ static void do_voice(const int *a1, int *a2) { int buffer[10]; @@ -246,6 +249,13 @@ static int dec1(int16_t *decsp, const int *data, const int *inp, int f) return rms(data, f); } +/** + * Evaluate the reflection coefficients from the filter coefficients. + * Does the inverse of the do_voice() function. + * + * @return 1 if one of the reflection coefficients is of magnitude greater than + * 4095, 0 if not. + */ static int eq(const int16_t *in, int *target) { int retval = 0;