Add codecs to librbcodec.

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>

1 files changed, 0 insertions, 374 deletions

diff --git a/apps/codecs/lib/ffmpeg_bitstream.c b/apps/codecs/lib/ffmpeg_bitstream.c
deleted file mode 100644
index e16df8d..0000000
--- a/apps/codecs/lib/ffmpeg_bitstream.c
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- * Common bit i/o utils
- * Copyright (c) 2000, 2001 Fabrice Bellard
- * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
- * Copyright (c) 2010 Loren Merritt
- *
- * alternative bitstream reader & writer by 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
- * bitstream api.
- */
-
-//#include "avcodec.h"
-#include "ffmpeg_get_bits.h"
-#include "ffmpeg_put_bits.h"
-#include "ffmpeg_intreadwrite.h"
-
-#define av_log(...)
-
-#ifdef ROCKBOX
-#undef DEBUGF
-#define DEBUGF(...)
-#endif
-
-const uint8_t ff_log2_run[32]={
- 0, 0, 0, 0, 1, 1, 1, 1,
- 2, 2, 2, 2, 3, 3, 3, 3,
- 4, 4, 5, 5, 6, 6, 7, 7,
- 8, 9,10,11,12,13,14,15
-};
-
-#if 0 // unused in rockbox
-void align_put_bits(PutBitContext *s)
-{
-#ifdef ALT_BITSTREAM_WRITER
-    put_bits(s,(  - s->index) & 7,0);
-#else
-    put_bits(s,s->bit_left & 7,0);
-#endif
-}
-
-void ff_put_string(PutBitContext *pb, const char *string, int terminate_string)
-{
-    while(*string){
-        put_bits(pb, 8, *string);
-        string++;
-    }
-    if(terminate_string)
-        put_bits(pb, 8, 0);
-}
-#endif
-
-void ff_copy_bits(PutBitContext *pb, const uint8_t *src, int length)
-{
-    int words= length>>4;
-    int bits= length&15;
-    int i;
-
-    if(length==0) return;
-
-    if(words < 16 || put_bits_count(pb)&7){
-        for(i=0; i<words; i++) put_bits(pb, 16, AV_RB16(src + 2*i));
-    }else{
-        for(i=0; put_bits_count(pb)&31; i++)
-            put_bits(pb, 8, src[i]);
-        flush_put_bits(pb);
-        memcpy(put_bits_ptr(pb), src+i, 2*words-i);
-        skip_put_bytes(pb, 2*words-i);
-    }
-
-    put_bits(pb, bits, AV_RB16(src + 2*words)>>(16-bits));
-}
-
-/* VLC decoding */
-
-//#define DEBUG_VLC
-
-#define GET_DATA(v, table, i, wrap, size) \
-{\
-    const uint8_t *ptr = (const uint8_t *)table + i * wrap;\
-    switch(size) {\
-    case 1:\
-        v = *(const uint8_t *)ptr;\
-        break;\
-    case 2:\
-        v = *(const uint16_t *)ptr;\
-        break;\
-    default:\
-        v = *(const uint32_t *)ptr;\
-        break;\
-    }\
-}
-
-
-static int alloc_table(VLC *vlc, int size, int use_static)
-{
-    int index;
-    index = vlc->table_size;
-    vlc->table_size += size;
-    if (vlc->table_size > vlc->table_allocated) {
-        if(use_static)
-        {
-            DEBUGF("init_vlc() used with too little memory : table_size > allocated_memory\n");
-            return -1;
-        }
-//            abort(); //cant do anything, init_vlc() is used with too little memory
-//        vlc->table_allocated += (1 << vlc->bits);
-//        vlc->table = av_realloc(vlc->table,
-//                                sizeof(VLC_TYPE) * 2 * vlc->table_allocated);
-        if (!vlc->table)
-            return -1;
-    }
-    return index;
-}
-
-/* 
-static av_always_inline uint32_t bitswap_32(uint32_t x) {
-    return av_reverse[x&0xFF]<<24
-         | av_reverse[(x>>8)&0xFF]<<16
-         | av_reverse[(x>>16)&0xFF]<<8
-         | av_reverse[x>>24];
-}
-*/
-
-typedef struct {
-    uint8_t bits;
-    uint16_t symbol;
-    /** codeword, with the first bit-to-be-read in the msb
-     * (even if intended for a little-endian bitstream reader) */
-    uint32_t code;
-} __attribute__((__packed__)) VLCcode; /* packed to save space */
-
-static int compare_vlcspec(const void *a, const void *b)
-{
-    const VLCcode *sa=a, *sb=b;
-    return (sa->code >> 1) - (sb->code >> 1);
-}
-
-/**
- * Build VLC decoding tables suitable for use with get_vlc().
- *
- * @param vlc            the context to be initted
- *
- * @param table_nb_bits  max length of vlc codes to store directly in this table
- *                       (Longer codes are delegated to subtables.)
- *
- * @param nb_codes       number of elements in codes[]
- *
- * @param codes          descriptions of the vlc codes
- *                       These must be ordered such that codes going into the same subtable are contiguous.
- *                       Sorting by VLCcode.code is sufficient, though not necessary.
- */
-static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
-                       VLCcode *codes, int flags)
-{
-    int table_size, table_index, index, symbol, subtable_bits;
-    int i, j, k, n, nb, inc;
-    uint32_t code, code_prefix;
-    VLC_TYPE (*table)[2];
-
-    table_size = 1 << table_nb_bits;
-    table_index = alloc_table(vlc, table_size, flags & INIT_VLC_USE_NEW_STATIC);
-#ifdef DEBUG_VLC
-    av_log(NULL,AV_LOG_DEBUG,"new table index=%d size=%d\n",
-           table_index, table_size);
-#endif
-    if (table_index < 0)
-        return -1;
-    table = &vlc->table[table_index];
-
-    for (i = 0; i < table_size; i++) {
-        table[i][1] = 0; //bits
-        table[i][0] = -1; //codes
-    }
-
-    /* first pass: map codes and compute auxillary table sizes */
-    for (i = 0; i < nb_codes; i++) {
-        n = codes[i].bits;
-        code = codes[i].code;
-        symbol = codes[i].symbol;
-#if defined(DEBUG_VLC) && 0
-        av_log(NULL,AV_LOG_DEBUG,"i=%d n=%d code=0x%x\n", i, n, code);
-#endif
-        if (n <= table_nb_bits) {
-            /* no need to add another table */
-            j = code >> (32 - table_nb_bits);
-            nb = 1 << (table_nb_bits - n);
-            inc = 1;
-/*            if (flags & INIT_VLC_LE) {
-                j = bitswap_32(code);
-                inc = 1 << n;
-            } */
-            for (k = 0; k < nb; k++) {
-#ifdef DEBUG_VLC
-                av_log(NULL, AV_LOG_DEBUG, "%4x: code=%d n=%d\n",
-                       j, i, n);
-#endif
-                if (table[j][1] /*bits*/ != 0) {
-                    av_log(NULL, AV_LOG_ERROR, "incorrect codes\n");
-                    return -1;
-                }
-                table[j][1] = n; //bits
-                table[j][0] = symbol;
-                j += inc;
-            }
-        } else {
-            /* fill auxiliary table recursively */
-            n -= table_nb_bits;
-            code_prefix = code >> (32 - table_nb_bits);
-            subtable_bits = n;
-            codes[i].bits = n;
-            codes[i].code = code << table_nb_bits;
-            for (k = i+1; k < nb_codes; k++) {
-                n = codes[k].bits - table_nb_bits;
-                if (n <= 0)
-                    break;
-                code = codes[k].code;
-                if (code >> (32 - table_nb_bits) != code_prefix)
-                    break;
-                codes[k].bits = n;
-                codes[k].code = code << table_nb_bits;
-                subtable_bits = FFMAX(subtable_bits, n);
-            }
-            subtable_bits = FFMIN(subtable_bits, table_nb_bits);
-            j = /*(flags & INIT_VLC_LE) ? bitswap_32(code_prefix) >> (32 - table_nb_bits) :*/ code_prefix;
-            table[j][1] = -subtable_bits;
-#ifdef DEBUG_VLC
-            av_log(NULL,AV_LOG_DEBUG,"%4x: n=%d (subtable)\n",
-                   j, codes[i].bits + table_nb_bits);
-#endif
-            index = build_table(vlc, subtable_bits, k-i, codes+i, flags);
-            if (index < 0)
-                return -1;
-            /* note: realloc has been done, so reload tables */
-            table = &vlc->table[table_index];
-            table[j][0] = index; //code
-            i = k-1;
-        }
-    }
-    return table_index;
-}
-
-
-/* Build VLC decoding tables suitable for use with get_vlc().
-
-   'nb_bits' set thee decoding table size (2^nb_bits) entries. The
-   bigger it is, the faster is the decoding. But it should not be too
-   big to save memory and L1 cache. '9' is a good compromise.
-
-   'nb_codes' : number of vlcs codes
-
-   'bits' : table which gives the size (in bits) of each vlc code.
-
-   'codes' : table which gives the bit pattern of of each vlc code.
-
-   'symbols' : table which gives the values to be returned from get_vlc().
-
-   'xxx_wrap' : give the number of bytes between each entry of the
-   'bits' or 'codes' tables.
-
-   'xxx_size' : gives the number of bytes of each entry of the 'bits'
-   or 'codes' tables.
-
-   'wrap' and 'size' allows to use any memory configuration and types
-   (byte/word/long) to store the 'bits', 'codes', and 'symbols' tables.
-
-   'use_static' should be set to 1 for tables, which should be freed
-   with av_free_static(), 0 if free_vlc() will be used.
-*/
-
-/* Rockbox: support for INIT_VLC_LE is currently disabled since none of our
-   codecs use it, there's a LUT based bit reverse function for this commented
-   out above (bitswap_32) and an inline asm version in libtremor/codebook.c
-   if we ever want this */
-   
-static VLCcode buf[1336+1]; /* worst case is wma, which has one table with 1336 entries */
-
-int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
-             const void *bits, int bits_wrap, int bits_size,
-             const void *codes, int codes_wrap, int codes_size,
-             const void *symbols, int symbols_wrap, int symbols_size,
-             int flags)
-{
-    if (nb_codes+1 > (int)(sizeof (buf)/ sizeof (VLCcode)))
-    {
-        DEBUGF("Table is larger than temp buffer!\n");
-        return -1;
-    }
-
-    int i, j, ret;
-
-    vlc->bits = nb_bits;
-    if(flags & INIT_VLC_USE_NEW_STATIC){
-        if(vlc->table_size && vlc->table_size == vlc->table_allocated){
-            return 0;
-        }else if(vlc->table_size){
-            DEBUGF("fatal error, we are called on a partially initialized table\n");
-            return -1;
-//            abort(); // fatal error, we are called on a partially initialized table
-        }
-    }else {
-        vlc->table = NULL;
-        vlc->table_allocated = 0;
-        vlc->table_size = 0;
-    }
-
-#ifdef DEBUG_VLC
-    av_log(NULL,AV_LOG_DEBUG,"build table nb_codes=%d\n", nb_codes);
-#endif
-
-//    buf = av_malloc((nb_codes+1)*sizeof(VLCcode));
-
-//    assert(symbols_size <= 2 || !symbols);
-    j = 0;
-#define COPY(condition)\
-    for (i = 0; i < nb_codes; i++) {\
-        GET_DATA(buf[j].bits, bits, i, bits_wrap, bits_size);\
-        if (!(condition))\
-            continue;\
-        GET_DATA(buf[j].code, codes, i, codes_wrap, codes_size);\
-/*        if (flags & INIT_VLC_LE)*/\
-/*            buf[j].code = bitswap_32(buf[j].code);*/\
-/*        else*/\
-            buf[j].code <<= 32 - buf[j].bits;\
-        if (symbols)\
-            GET_DATA(buf[j].symbol, symbols, i, symbols_wrap, symbols_size)\
-        else\
-            buf[j].symbol = i;\
-        j++;\
-    }
-    COPY(buf[j].bits > nb_bits);
-    // qsort is the slowest part of init_vlc, and could probably be improved or avoided
-    qsort(buf, j, sizeof(VLCcode), compare_vlcspec);
-    COPY(buf[j].bits && buf[j].bits <= nb_bits);
-    nb_codes = j;
-
-    ret = build_table(vlc, nb_bits, nb_codes, buf, flags);
-
-//    av_free(buf);
-    if (ret < 0) {
-//        av_freep(&vlc->table);
-        return -1;
-    }
-    if((flags & INIT_VLC_USE_NEW_STATIC) && vlc->table_size != vlc->table_allocated) {
-        av_log(NULL, AV_LOG_ERROR, "needed %d had %d\n", vlc->table_size, vlc->table_allocated);
-    }
-    return 0;
-}
-
-/* not used in rockbox
-void free_vlc(VLC *vlc)
-{
-    av_freep(&vlc->table);
-}
-*/
-