1 files changed, 1 insertions, 277 deletions

diff --git a/apps/codecs/libffmpegFLAC/bitstream.h b/apps/codecs/libffmpegFLAC/bitstream.h
index 9a8c548..1333b9f 100644
--- a/apps/codecs/libffmpegFLAC/bitstream.h
+++ b/apps/codecs/libffmpegFLAC/bitstream.h
@@ -7,6 +7,7 @@
 #define BITSTREAM_H
 
 #include <inttypes.h>
+#include "ffmpeg_get_bits.h"
 
 #ifndef BUILD_STANDALONE
   #include <config.h>
@@ -61,281 +62,4 @@
     }
 #endif
 
-/* FLAC files are big-endian */
-#define ALT_BITSTREAM_READER_BE
- 
-#define NEG_SSR32(a,s) (((int32_t)(a))>>(32-(s)))
-#define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s)))
-
-/* bit input */
-/* buffer, buffer_end and size_in_bits must be present and used by every reader */
-typedef struct GetBitContext {
-    const uint8_t *buffer, *buffer_end;
-    int index;
-    int size_in_bits;
-} GetBitContext;
-
-#define VLC_TYPE int16_t
-
-typedef struct VLC {
-    int bits;
-    VLC_TYPE (*table)[2]; ///< code, bits
-    int table_size, table_allocated;
-} VLC;
-
-typedef struct RL_VLC_ELEM {
-    int16_t level;
-    int8_t len;
-    uint8_t run;
-} RL_VLC_ELEM;
-
-#if defined(ARCH_SPARC) || defined(ARCH_ARMV4L)
-#define UNALIGNED_STORES_ARE_BAD
-#endif
-
-/* used to avoid missaligned exceptions on some archs (alpha, ...) */
-#if defined(ARCH_X86) || defined(ARCH_X86_64)
-#    define unaligned32(a) (*(const uint32_t*)(a))
-#else
-#    ifdef __GNUC__
-static inline uint32_t unaligned32(const void *v) {
-    struct Unaligned {
-    uint32_t i;
-    } __attribute__((packed));
-
-    return ((const struct Unaligned *) v)->i;
-}
-#    elif defined(__DECC)
-static inline uint32_t unaligned32(const void *v) {
-    return *(const __unaligned uint32_t *) v;
-}
-#    else
-static inline uint32_t unaligned32(const void *v) {
-    return *(const uint32_t *) v;
-}
-#    endif
-#endif //!ARCH_X86
-
-
-/* Bitstream reader API docs:
-name
-    abritary name which is used as prefix for the internal variables
-
-gb
-    getbitcontext
-
-OPEN_READER(name, gb)
-    loads gb into local variables
-
-CLOSE_READER(name, gb)
-    stores local vars in gb
-
-UPDATE_CACHE(name, gb)
-    refills the internal cache from the bitstream
-    after this call at least MIN_CACHE_BITS will be available,
-
-GET_CACHE(name, gb)
-    will output the contents of the internal cache, next bit is MSB of 32 or 64 bit (FIXME 64bit)
-
-SHOW_UBITS(name, gb, num)
-    will return the next num bits
-
-SHOW_SBITS(name, gb, num)
-    will return the next num bits and do sign extension
-
-SKIP_BITS(name, gb, num)
-    will skip over the next num bits
-    note, this is equivalent to SKIP_CACHE; SKIP_COUNTER
-
-SKIP_CACHE(name, gb, num)
-    will remove the next num bits from the cache (note SKIP_COUNTER MUST be called before UPDATE_CACHE / CLOSE_READER)
-
-SKIP_COUNTER(name, gb, num)
-    will increment the internal bit counter (see SKIP_CACHE & SKIP_BITS)
-
-LAST_SKIP_CACHE(name, gb, num)
-    will remove the next num bits from the cache if it is needed for UPDATE_CACHE otherwise it will do nothing
-
-LAST_SKIP_BITS(name, gb, num)
-    is equivalent to SKIP_LAST_CACHE; SKIP_COUNTER
-
-for examples see get_bits, show_bits, skip_bits, get_vlc
-*/
-
-static inline int unaligned32_be(const void *v)
-{
-#ifdef CONFIG_ALIGN
-    const uint8_t *p=v;
-    return (((p[0]<<8) | p[1])<<16) | (p[2]<<8) | (p[3]);
-#else
-    return betoh32( unaligned32(v)); //original
-#endif
-}
-
-static inline int unaligned32_le(const void *v)
-{
-#ifdef CONFIG_ALIGN
-       const uint8_t *p=v;
-       return (((p[3]<<8) | p[2])<<16) | (p[1]<<8) | (p[0]);
-#else
-       return letoh32( unaligned32(v)); //original
-#endif
-}
-
-#   define MIN_CACHE_BITS 25
-
-#   define OPEN_READER(name, gb)\
-        int name##_index= (gb)->index;\
-        int name##_cache= 0;\
-
-#   define CLOSE_READER(name, gb)\
-        (gb)->index= name##_index;\
-
-# ifdef ALT_BITSTREAM_READER_LE
-#   define UPDATE_CACHE(name, gb)\
-        name##_cache= unaligned32_le( ((const uint8_t *)(gb)->buffer)+(name##_index>>3) ) >> (name##_index&0x07);\
-
-#   define SKIP_CACHE(name, gb, num)\
-        name##_cache >>= (num);
-# else
-#   define UPDATE_CACHE(name, gb)\
-        name##_cache= unaligned32_be( ((const uint8_t *)(gb)->buffer)+(name##_index>>3) ) << (name##_index&0x07);\
-
-#   define SKIP_CACHE(name, gb, num)\
-        name##_cache <<= (num);
-# endif
-
-// FIXME name?
-#   define SKIP_COUNTER(name, gb, num)\
-        name##_index += (num);\
-
-#   define SKIP_BITS(name, gb, num)\
-        {\
-            SKIP_CACHE(name, gb, num)\
-            SKIP_COUNTER(name, gb, num)\
-        }\
-
-#   define LAST_SKIP_BITS(name, gb, num) SKIP_COUNTER(name, gb, num)
-#   define LAST_SKIP_CACHE(name, gb, num) ;
-
-# ifdef ALT_BITSTREAM_READER_LE
-#   define SHOW_UBITS(name, gb, num)\
-        ((name##_cache) & (NEG_USR32(0xffffffff,num)))
-# else
-#   define SHOW_UBITS(name, gb, num)\
-        NEG_USR32(name##_cache, num)
-# endif
-
-#   define SHOW_SBITS(name, gb, num)\
-        NEG_SSR32(name##_cache, num)
-
-#   define GET_CACHE(name, gb)\
-        ((uint32_t)name##_cache)
-
-static inline int get_bits_count(GetBitContext *s){
-    return s->index;
-}
-
-static inline int get_sbits(GetBitContext *s, int n){
-    register int tmp;
-    OPEN_READER(re, s)
-    UPDATE_CACHE(re, s)
-    tmp= SHOW_SBITS(re, s, n);
-    LAST_SKIP_BITS(re, s, n)
-    CLOSE_READER(re, s)
-    return tmp;
-}
-
-/**
- * reads 0-17 bits.
- * Note, the alt bitstream reader can read up to 25 bits, but the libmpeg2 reader can't
- */
-static inline unsigned int get_bits(GetBitContext *s, int n){
-    register int tmp;
-    OPEN_READER(re, s)
-    UPDATE_CACHE(re, s)
-    tmp= SHOW_UBITS(re, s, n);
-    LAST_SKIP_BITS(re, s, n)
-    CLOSE_READER(re, s)
-    return tmp;
-}
-
-unsigned int get_bits_long(GetBitContext *s, int n) ICODE_ATTR_FLAC;
-
-/**
- * shows 0-17 bits.
- * Note, the alt bitstream reader can read up to 25 bits, but the libmpeg2 reader can't
- */
-static inline unsigned int show_bits(GetBitContext *s, int n){
-    register int tmp;
-    OPEN_READER(re, s)
-    UPDATE_CACHE(re, s)
-    tmp= SHOW_UBITS(re, s, n);
-//    CLOSE_READER(re, s)
-    return tmp;
-}
-
-unsigned int show_bits_long(GetBitContext *s, int n) ICODE_ATTR_FLAC;
-
-static inline void skip_bits(GetBitContext *s, int n){
- //Note gcc seems to optimize this to s->index+=n for the ALT_READER :))
-    OPEN_READER(re, s)
-    UPDATE_CACHE(re, s)
-    LAST_SKIP_BITS(re, s, n)
-    CLOSE_READER(re, s)
-}
-
-static inline unsigned int get_bits1(GetBitContext *s){
-    int index= s->index;
-    uint8_t result= s->buffer[ index>>3 ];
-#ifdef ALT_BITSTREAM_READER_LE
-    result>>= (index&0x07);
-    result&= 1;
-#else
-    result<<= (index&0x07);
-    result>>= 8 - 1;
-#endif
-    index++;
-    s->index= index;
-
-    return result;
-}
-
-static inline unsigned int show_bits1(GetBitContext *s){
-    return show_bits(s, 1);
-}
-
-static inline void skip_bits1(GetBitContext *s){
-    skip_bits(s, 1);
-}
-
-/**
- * init GetBitContext.
- * @param buffer bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE bytes larger then the actual read bits
- * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
- * @param bit_size the size of the buffer in bits
- */
-static inline void init_get_bits(GetBitContext *s,
-                   const uint8_t *buffer, int bit_size)
-{
-    int buffer_size= (bit_size+7)>>3;
-    if(buffer_size < 0 || bit_size < 0) {
-        buffer_size = bit_size = 0;
-        buffer = 0;
-    }
-
-    s->buffer= buffer;
-    s->size_in_bits= bit_size;
-    s->buffer_end= buffer + buffer_size;
-    s->index=0;
-    {
-        OPEN_READER(re, s)
-        UPDATE_CACHE(re, s)
-        UPDATE_CACHE(re, s)
-        CLOSE_READER(re, s)
-    }
-}
-
-void align_get_bits(GetBitContext *s) ICODE_ATTR_FLAC;
-
 #endif /* BITSTREAM_H */