From 0ddfb84d6dc8a7e77479cf8d7498aedadcca5e26 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 9 Apr 2007 22:21:49 +0000 Subject: [PATCH] remove code_prefix variable, no speed change Originally committed as revision 8700 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/lzwenc.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/libavcodec/lzwenc.c b/libavcodec/lzwenc.c index 6b9b8d4..bc9c4be 100644 --- a/libavcodec/lzwenc.c +++ b/libavcodec/lzwenc.c @@ -220,29 +220,27 @@ void ff_lzw_encode_init(LZWEncodeState * s, uint8_t * outbuf, int outsize, int m int ff_lzw_encode(LZWEncodeState * s, const uint8_t * inbuf, int insize) { int i; - int code_prefix = s->last_code; if(insize * 3 > (s->bufsize - s->output_bytes) * 2){ return -1; } - if (code_prefix == LZW_PREFIX_EMPTY) + if (s->last_code == LZW_PREFIX_EMPTY) clearTable(s); for (i = 0; i < insize; i++) { uint8_t c = *inbuf++; - int code = findCode(s, c, code_prefix); + int code = findCode(s, c, s->last_code); if (s->tab[code].hash_prefix == LZW_PREFIX_FREE) { - writeCode(s, code_prefix); - addCode(s, c, code_prefix, code); + writeCode(s, s->last_code); + addCode(s, c, s->last_code, code); code= hash(0, c); } - code_prefix = s->tab[code].code; + s->last_code = s->tab[code].code; if (s->tabsize >= s->maxcode - 1) { clearTable(s); } } - s->last_code = code_prefix; return writtenBytes(s); } -- 2.7.4