From 6005ab3e0ed6513cdc274a758fb63a57516cf63e Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 5 Dec 2013 14:08:06 +0100 Subject: [PATCH] avcodec/mjpegenc: use av_log2_16bit() in encode_block() This reduces the number of operations done per non zero coefficient Signed-off-by: Michael Niedermayer --- libavcodec/mjpegenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c index 74817cadc2..d4db8d83da 100644 --- a/libavcodec/mjpegenc.c +++ b/libavcodec/mjpegenc.c @@ -441,7 +441,7 @@ static void encode_block(MpegEncContext *s, int16_t *block, int n) mant--; } - nbits= av_log2(val) + 1; + nbits= av_log2_16bit(val) + 1; code = (run << 4) | nbits; put_bits(&s->pb, huff_size_ac[code], huff_code_ac[code]);