From e847cabb60a29c354512664022ad6833a907bf1b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 24 Dec 2020 22:13:56 +0100 Subject: [PATCH] avcodec/siren: Factorize category 5 and 6 noise computation Signed-off-by: Michael Niedermayer --- libavcodec/siren.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/libavcodec/siren.c b/libavcodec/siren.c index 2d72fb9572..6c7a8e8b34 100644 --- a/libavcodec/siren.c +++ b/libavcodec/siren.c @@ -625,7 +625,7 @@ static int decode_vector(SirenContext *s, int number_of_regions, coefs_ptr = coefs + (region * REGION_SIZE); - if (category == 5) { + if (category == 5 || category == 6) { i = 0; for (j = 0; j < REGION_SIZE; j++) { if (*coefs_ptr != 0) @@ -633,15 +633,10 @@ static int decode_vector(SirenContext *s, int number_of_regions, coefs_ptr++; } - noise = decoder_standard_deviation[region] * noise_category5[i]; - } else if (category == 6) { - i = 0; - for (j = 0; j < REGION_SIZE; j++) { - if (*coefs_ptr++ != 0) - i++; - } - - noise = decoder_standard_deviation[region] * noise_category6[i]; + if (category == 5) { + noise = decoder_standard_deviation[region] * noise_category5[i]; + } else + noise = decoder_standard_deviation[region] * noise_category6[i]; } else if (category == 7) { noise = decoder_standard_deviation[region] * 0.70711f; } else {