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-rw-r--r--libavcodec/golomb_legacy.h573
1 files changed, 0 insertions, 573 deletions
diff --git a/libavcodec/golomb_legacy.h b/libavcodec/golomb_legacy.h
deleted file mode 100644
index 9fafbcda70..0000000000
--- a/libavcodec/golomb_legacy.h
+++ /dev/null
@@ -1,573 +0,0 @@
-/*
- * exp golomb vlc stuff
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- * Copyright (c) 2004 Alex Beregszaszi
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * @brief
- * exp golomb vlc stuff
- * @author Michael Niedermayer <michaelni@gmx.at> and Alex Beregszaszi
- */
-
-#ifndef AVCODEC_GOLOMB_H
-#define AVCODEC_GOLOMB_H
-
-#include <stdint.h>
-
-#include "get_bits.h"
-#include "put_bits.h"
-
-#define INVALID_VLC 0x80000000
-
-extern const uint8_t ff_golomb_vlc_len[512];
-extern const uint8_t ff_ue_golomb_vlc_code[512];
-extern const int8_t ff_se_golomb_vlc_code[512];
-extern const uint8_t ff_ue_golomb_len[256];
-
-extern const uint8_t ff_interleaved_golomb_vlc_len[256];
-extern const uint8_t ff_interleaved_ue_golomb_vlc_code[256];
-extern const int8_t ff_interleaved_se_golomb_vlc_code[256];
-extern const uint8_t ff_interleaved_dirac_golomb_vlc_code[256];
-
-/**
- * read unsigned exp golomb code.
- */
-static inline int get_ue_golomb(GetBitContext *gb)
-{
- unsigned int buf;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
-
- if (buf >= (1 << 27)) {
- buf >>= 32 - 9;
- LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
-
- return ff_ue_golomb_vlc_code[buf];
- } else {
- int log = 2 * av_log2(buf) - 31;
- buf >>= log;
- buf--;
- LAST_SKIP_BITS(re, gb, 32 - log);
- CLOSE_READER(re, gb);
-
- return buf;
- }
-}
-
-/**
- * Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1.
- */
-static inline unsigned get_ue_golomb_long(GetBitContext *gb)
-{
- unsigned buf, log;
-
- buf = show_bits_long(gb, 32);
- log = 31 - av_log2(buf);
- skip_bits_long(gb, log);
-
- return get_bits_long(gb, log + 1) - 1;
-}
-
-/**
- * read unsigned exp golomb code, constraint to a max of 31.
- * the return value is undefined if the stored value exceeds 31.
- */
-static inline int get_ue_golomb_31(GetBitContext *gb)
-{
- unsigned int buf;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
-
- buf >>= 32 - 9;
- LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
-
- return ff_ue_golomb_vlc_code[buf];
-}
-
-static inline unsigned get_interleaved_ue_golomb(GetBitContext *gb)
-{
- uint32_t buf;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
-
- if (buf & 0xAA800000) {
- buf >>= 32 - 8;
- LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
-
- return ff_interleaved_ue_golomb_vlc_code[buf];
- } else {
- unsigned ret = 1;
-
- do {
- buf >>= 32 - 8;
- LAST_SKIP_BITS(re, gb,
- FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
-
- if (ff_interleaved_golomb_vlc_len[buf] != 9) {
- ret <<= (ff_interleaved_golomb_vlc_len[buf] - 1) >> 1;
- ret |= ff_interleaved_dirac_golomb_vlc_code[buf];
- break;
- }
- ret = (ret << 4) | ff_interleaved_dirac_golomb_vlc_code[buf];
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
- } while (BITS_AVAILABLE(re, gb));
-
- CLOSE_READER(re, gb);
- return ret - 1;
- }
-}
-
-/**
- * read unsigned truncated exp golomb code.
- */
-static inline int get_te0_golomb(GetBitContext *gb, int range)
-{
- assert(range >= 1);
-
- if (range == 1)
- return 0;
- else if (range == 2)
- return get_bits1(gb) ^ 1;
- else
- return get_ue_golomb(gb);
-}
-
-/**
- * read unsigned truncated exp golomb code.
- */
-static inline int get_te_golomb(GetBitContext *gb, int range)
-{
- assert(range >= 1);
-
- if (range == 2)
- return get_bits1(gb) ^ 1;
- else
- return get_ue_golomb(gb);
-}
-
-/**
- * read signed exp golomb code.
- */
-static inline int get_se_golomb(GetBitContext *gb)
-{
- unsigned int buf;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
-
- if (buf >= (1 << 27)) {
- buf >>= 32 - 9;
- LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
-
- return ff_se_golomb_vlc_code[buf];
- } else {
- int log = 2 * av_log2(buf) - 31;
- buf >>= log;
-
- LAST_SKIP_BITS(re, gb, 32 - log);
- CLOSE_READER(re, gb);
-
- if (buf & 1)
- buf = -(buf >> 1);
- else
- buf = (buf >> 1);
-
- return buf;
- }
-}
-
-static inline int get_se_golomb_long(GetBitContext *gb)
-{
- unsigned int buf = get_ue_golomb_long(gb);
-
- if (buf & 1)
- buf = (buf + 1) >> 1;
- else
- buf = -(buf >> 1);
-
- return buf;
-}
-
-static inline int get_interleaved_se_golomb(GetBitContext *gb)
-{
- unsigned int buf;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
-
- if (buf & 0xAA800000) {
- buf >>= 32 - 8;
- LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
-
- return ff_interleaved_se_golomb_vlc_code[buf];
- } else {
- int log;
- LAST_SKIP_BITS(re, gb, 8);
- UPDATE_CACHE(re, gb);
- buf |= 1 | (GET_CACHE(re, gb) >> 8);
-
- if ((buf & 0xAAAAAAAA) == 0)
- return INVALID_VLC;
-
- for (log = 31; (buf & 0x80000000) == 0; log--)
- buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
-
- LAST_SKIP_BITS(re, gb, 63 - 2 * log - 8);
- CLOSE_READER(re, gb);
-
- return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
- }
-}
-
-static inline int dirac_get_se_golomb(GetBitContext *gb)
-{
- uint32_t ret = get_interleaved_ue_golomb(gb);
-
- if (ret) {
- uint32_t buf;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = SHOW_SBITS(re, gb, 1);
- LAST_SKIP_BITS(re, gb, 1);
- ret = (ret ^ buf) - buf;
- CLOSE_READER(re, gb);
- }
-
- return ret;
-}
-
-/**
- * read unsigned golomb rice code (ffv1).
- */
-static inline int get_ur_golomb(GetBitContext *gb, int k, int limit,
- int esc_len)
-{
- unsigned int buf;
- int log;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
-
- log = av_log2(buf);
-
- if (log > 31 - limit) {
- buf >>= log - k;
- buf += (30 - log) << k;
- LAST_SKIP_BITS(re, gb, 32 + k - log);
- CLOSE_READER(re, gb);
-
- return buf;
- } else {
- LAST_SKIP_BITS(re, gb, limit);
- UPDATE_CACHE(re, gb);
-
- buf = SHOW_UBITS(re, gb, esc_len);
-
- LAST_SKIP_BITS(re, gb, esc_len);
- CLOSE_READER(re, gb);
-
- return buf + limit - 1;
- }
-}
-
-/**
- * read unsigned golomb rice code (jpegls).
- */
-static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit,
- int esc_len)
-{
- unsigned int buf;
- int log;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
-
- log = av_log2(buf);
-
- if (log - k >= 32 - MIN_CACHE_BITS + (MIN_CACHE_BITS == 32) &&
- 32 - log < limit) {
- buf >>= log - k;
- buf += (30 - log) << k;
- LAST_SKIP_BITS(re, gb, 32 + k - log);
- CLOSE_READER(re, gb);
-
- return buf;
- } else {
- int i;
- for (i = 0; i < limit && SHOW_UBITS(re, gb, 1) == 0 && BITS_AVAILABLE(re, gb); i++) {
- LAST_SKIP_BITS(re, gb, 1);
- UPDATE_CACHE(re, gb);
- }
- SKIP_BITS(re, gb, 1);
-
- if (i < limit - 1) {
- if (k) {
- buf = SHOW_UBITS(re, gb, k);
- LAST_SKIP_BITS(re, gb, k);
- } else {
- buf = 0;
- }
-
- CLOSE_READER(re, gb);
- return buf + (i << k);
- } else if (i == limit - 1) {
- buf = SHOW_UBITS(re, gb, esc_len);
- LAST_SKIP_BITS(re, gb, esc_len);
- CLOSE_READER(re, gb);
-
- return buf + 1;
- } else
- return -1;
- }
-}
-
-/**
- * read signed golomb rice code (ffv1).
- */
-static inline int get_sr_golomb(GetBitContext *gb, int k, int limit,
- int esc_len)
-{
- int v = get_ur_golomb(gb, k, limit, esc_len);
-
- v++;
- if (v & 1)
- return v >> 1;
- else
- return -(v >> 1);
-
-// return (v>>1) ^ -(v&1);
-}
-
-/**
- * read signed golomb rice code (flac).
- */
-static inline int get_sr_golomb_flac(GetBitContext *gb, int k, int limit,
- int esc_len)
-{
- int v = get_ur_golomb_jpegls(gb, k, limit, esc_len);
- return (v >> 1) ^ -(v & 1);
-}
-
-/**
- * read unsigned golomb rice code (shorten).
- */
-static inline unsigned int get_ur_golomb_shorten(GetBitContext *gb, int k)
-{
- return get_ur_golomb_jpegls(gb, k, INT_MAX, 0);
-}
-
-/**
- * read signed golomb rice code (shorten).
- */
-static inline int get_sr_golomb_shorten(GetBitContext *gb, int k)
-{
- int uvar = get_ur_golomb_jpegls(gb, k + 1, INT_MAX, 0);
- if (uvar & 1)
- return ~(uvar >> 1);
- else
- return uvar >> 1;
-}
-
-#ifdef TRACE
-
-static inline int get_ue(GetBitContext *s, const char *file, const char *func,
- int line)
-{
- int show = show_bits(s, 24);
- int pos = get_bits_count(s);
- int i = get_ue_golomb(s);
- int len = get_bits_count(s) - pos;
- int bits = show >> (24 - len);
-
- av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d ue @%5d in %s %s:%d\n",
- bits, len, i, pos, file, func, line);
-
- return i;
-}
-
-static inline int get_se(GetBitContext *s, const char *file, const char *func,
- int line)
-{
- int show = show_bits(s, 24);
- int pos = get_bits_count(s);
- int i = get_se_golomb(s);
- int len = get_bits_count(s) - pos;
- int bits = show >> (24 - len);
-
- av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d se @%5d in %s %s:%d\n",
- bits, len, i, pos, file, func, line);
-
- return i;
-}
-
-static inline int get_te(GetBitContext *s, int r, char *file, const char *func,
- int line)
-{
- int show = show_bits(s, 24);
- int pos = get_bits_count(s);
- int i = get_te0_golomb(s, r);
- int len = get_bits_count(s) - pos;
- int bits = show >> (24 - len);
-
- av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d te @%5d in %s %s:%d\n",
- bits, len, i, pos, file, func, line);
-
- return i;
-}
-
-#define get_ue_golomb(a) get_ue(a, __FILE__, __func__, __LINE__)
-#define get_se_golomb(a) get_se(a, __FILE__, __func__, __LINE__)
-#define get_te_golomb(a, r) get_te(a, r, __FILE__, __func__, __LINE__)
-#define get_te0_golomb(a, r) get_te(a, r, __FILE__, __func__, __LINE__)
-
-#endif /* TRACE */
-
-/**
- * write unsigned exp golomb code.
- */
-static inline void set_ue_golomb(PutBitContext *pb, int i)
-{
- assert(i >= 0);
-
- if (i < 256)
- put_bits(pb, ff_ue_golomb_len[i], i + 1);
- else {
- int e = av_log2(i + 1);
- put_bits(pb, 2 * e + 1, i + 1);
- }
-}
-
-/**
- * write truncated unsigned exp golomb code.
- */
-static inline void set_te_golomb(PutBitContext *pb, int i, int range)
-{
- assert(range >= 1);
- assert(i <= range);
-
- if (range == 2)
- put_bits(pb, 1, i ^ 1);
- else
- set_ue_golomb(pb, i);
-}
-
-/**
- * write signed exp golomb code. 16 bits at most.
- */
-static inline void set_se_golomb(PutBitContext *pb, int i)
-{
- i = 2 * i - 1;
- if (i < 0)
- i ^= -1; //FIXME check if gcc does the right thing
- set_ue_golomb(pb, i);
-}
-
-/**
- * write unsigned golomb rice code (ffv1).
- */
-static inline void set_ur_golomb(PutBitContext *pb, int i, int k, int limit,
- int esc_len)
-{
- int e;
-
- assert(i >= 0);
-
- e = i >> k;
- if (e < limit)
- put_bits(pb, e + k + 1, (1 << k) + (i & ((1 << k) - 1)));
- else
- put_bits(pb, limit + esc_len, i - limit + 1);
-}
-
-/**
- * write unsigned golomb rice code (jpegls).
- */
-static inline void set_ur_golomb_jpegls(PutBitContext *pb, int i, int k,
- int limit, int esc_len)
-{
- int e;
-
- assert(i >= 0);
-
- e = (i >> k) + 1;
- if (e < limit) {
- while (e > 31) {
- put_bits(pb, 31, 0);
- e -= 31;
- }
- put_bits(pb, e, 1);
- if (k)
- put_sbits(pb, k, i);
- } else {
- while (limit > 31) {
- put_bits(pb, 31, 0);
- limit -= 31;
- }
- put_bits(pb, limit, 1);
- put_bits(pb, esc_len, i - 1);
- }
-}
-
-/**
- * write signed golomb rice code (ffv1).
- */
-static inline void set_sr_golomb(PutBitContext *pb, int i, int k, int limit,
- int esc_len)
-{
- int v;
-
- v = -2 * i - 1;
- v ^= (v >> 31);
-
- set_ur_golomb(pb, v, k, limit, esc_len);
-}
-
-/**
- * write signed golomb rice code (flac).
- */
-static inline void set_sr_golomb_flac(PutBitContext *pb, int i, int k,
- int limit, int esc_len)
-{
- int v;
-
- v = -2 * i - 1;
- v ^= (v >> 31);
-
- set_ur_golomb_jpegls(pb, v, k, limit, esc_len);
-}
-
-#endif /* AVCODEC_GOLOMB_H */
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