chasing indexing error

1 files changed, 0 insertions, 147 deletions

diff --git a/ffmpeg/libavcodec/rangecoder.h b/ffmpeg/libavcodec/rangecoder.h
deleted file mode 100644
index 88e555f..0000000
--- a/ffmpeg/libavcodec/rangecoder.h
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Range coder
- * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * Range coder.
- */
-
-#ifndef AVCODEC_RANGECODER_H
-#define AVCODEC_RANGECODER_H
-
-#include <stdint.h>
-
-#include "libavutil/common.h"
-#include "libavutil/avassert.h"
-
-typedef struct RangeCoder {
-    int low;
-    int range;
-    int outstanding_count;
-    int outstanding_byte;
-    uint8_t zero_state[256];
-    uint8_t one_state[256];
-    uint8_t *bytestream_start;
-    uint8_t *bytestream;
-    uint8_t *bytestream_end;
-} RangeCoder;
-
-void ff_init_range_encoder(RangeCoder *c, uint8_t *buf, int buf_size);
-void ff_init_range_decoder(RangeCoder *c, const uint8_t *buf, int buf_size);
-int ff_rac_terminate(RangeCoder *c);
-void ff_build_rac_states(RangeCoder *c, int factor, int max_p);
-
-static inline void renorm_encoder(RangeCoder *c)
-{
-    // FIXME: optimize
-    while (c->range < 0x100) {
-        if (c->outstanding_byte < 0) {
-            c->outstanding_byte = c->low >> 8;
-        } else if (c->low <= 0xFF00) {
-            *c->bytestream++ = c->outstanding_byte;
-            for (; c->outstanding_count; c->outstanding_count--)
-                *c->bytestream++ = 0xFF;
-            c->outstanding_byte = c->low >> 8;
-        } else if (c->low >= 0x10000) {
-            *c->bytestream++ = c->outstanding_byte + 1;
-            for (; c->outstanding_count; c->outstanding_count--)
-                *c->bytestream++ = 0x00;
-            c->outstanding_byte = (c->low >> 8) & 0xFF;
-        } else {
-            c->outstanding_count++;
-        }
-
-        c->low     = (c->low & 0xFF) << 8;
-        c->range <<= 8;
-    }
-}
-
-static inline int get_rac_count(RangeCoder *c)
-{
-    int x = c->bytestream - c->bytestream_start + c->outstanding_count;
-    if (c->outstanding_byte >= 0)
-        x++;
-    return 8 * x - av_log2(c->range);
-}
-
-static inline void put_rac(RangeCoder *c, uint8_t *const state, int bit)
-{
-    int range1 = (c->range * (*state)) >> 8;
-
-    av_assert2(*state);
-    av_assert2(range1 < c->range);
-    av_assert2(range1 > 0);
-    if (!bit) {
-        c->range -= range1;
-        *state    = c->zero_state[*state];
-    } else {
-        c->low  += c->range - range1;
-        c->range = range1;
-        *state   = c->one_state[*state];
-    }
-
-    renorm_encoder(c);
-}
-
-static inline void refill(RangeCoder *c)
-{
-    if (c->range < 0x100) {
-        c->range <<= 8;
-        c->low   <<= 8;
-        if (c->bytestream < c->bytestream_end)
-            c->low += c->bytestream[0];
-        c->bytestream++;
-    }
-}
-
-static inline int get_rac(RangeCoder *c, uint8_t *const state)
-{
-    int range1 = (c->range * (*state)) >> 8;
-    int av_unused one_mask;
-
-    c->range -= range1;
-#if 1
-    if (c->low < c->range) {
-        *state = c->zero_state[*state];
-        refill(c);
-        return 0;
-    } else {
-        c->low  -= c->range;
-        *state   = c->one_state[*state];
-        c->range = range1;
-        refill(c);
-        return 1;
-    }
-#else
-    one_mask = (c->range - c->low - 1) >> 31;
-
-    c->low   -= c->range & one_mask;
-    c->range += (range1 - c->range) & one_mask;
-
-    *state = c->zero_state[(*state) + (256 & one_mask)];
-
-    refill(c);
-
-    return one_mask & 1;
-#endif
-}
-
-#endif /* AVCODEC_RANGECODER_H */