//#define A32_BITSTREAM_READER
#define LIBMPEG2_BITSTREAM_READER_HACK //add BERO
+extern const uint8_t ff_reverse[256];
+
#if defined(ARCH_X86) || defined(ARCH_X86_64)
// avoid +32 for shift optimization (gcc should do that ...)
static inline int32_t NEG_SSR32( int32_t a, int8_t s){
#endif
}
+/**
+ * skips the given number of bits.
+ * must only be used if the actual values in the bitstream dont matter
+ */
+static inline void skip_put_bits(PutBitContext *s, int n){
+#ifdef ALT_BITSTREAM_WRITER
+ s->index += n;
+#else
+ s->bit_left -= n;
+ s->buf_ptr-= s->bit_left>>5;
+ s->bit_left &= 31;
+#endif
+}
+
/**
* Changes the end of the buffer.
*/
# define UPDATE_CACHE(name, gb)\
if(name##_bit_count >= 0){\
name##_cache+= (int)be2me_16(*(uint16_t*)name##_buffer_ptr) << name##_bit_count;\
- ((uint16_t*)name##_buffer_ptr)++;\
+ name##_buffer_ptr += 2;\
name##_bit_count-= 16;\
}\
SKIP_BITS(name, gb, n)\
}
-#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth)\
+#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth, need_update)\
{\
int n, index, nb_bits;\
\
n = table[index].len;\
\
if(max_depth > 1 && n < 0){\
- LAST_SKIP_BITS(name, gb, bits)\
- UPDATE_CACHE(name, gb)\
+ SKIP_BITS(name, gb, bits)\
+ if(need_update){\
+ UPDATE_CACHE(name, gb)\
+ }\
\
nb_bits = -n;\
\
//#define TRACE
#ifdef TRACE
-
+#include "avcodec.h"
static inline void print_bin(int bits, int n){
int i;
for(i=n-1; i>=0; i--){
- printf("%d", (bits>>i)&1);
+ av_log(NULL, AV_LOG_DEBUG, "%d", (bits>>i)&1);
}
for(i=n; i<24; i++)
- printf(" ");
+ av_log(NULL, AV_LOG_DEBUG, " ");
}
-static inline int get_bits_trace(GetBitContext *s, int n, char *file, char *func, int line){
+static inline int get_bits_trace(GetBitContext *s, int n, char *file, const char *func, int line){
int r= get_bits(s, n);
print_bin(r, n);
- printf("%5d %2d %3d bit @%5d in %s %s:%d\n", r, n, r, get_bits_count(s)-n, file, func, line);
+ av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d bit @%5d in %s %s:%d\n", r, n, r, get_bits_count(s)-n, file, func, line);
return r;
}
-static inline int get_vlc_trace(GetBitContext *s, VLC_TYPE (*table)[2], int bits, int max_depth, char *file, char *func, int line){
+static inline int get_vlc_trace(GetBitContext *s, VLC_TYPE (*table)[2], int bits, int max_depth, char *file, const char *func, int line){
int show= show_bits(s, 24);
int pos= get_bits_count(s);
int r= get_vlc2(s, table, bits, max_depth);
print_bin(bits2, len);
- printf("%5d %2d %3d vlc @%5d in %s %s:%d\n", bits2, len, r, pos, file, func, line);
+ av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d vlc @%5d in %s %s:%d\n", bits2, len, r, pos, file, func, line);
return r;
}
-static inline int get_xbits_trace(GetBitContext *s, int n, char *file, char *func, int line){
+static inline int get_xbits_trace(GetBitContext *s, int n, char *file, const char *func, int line){
int show= show_bits(s, n);
int r= get_xbits(s, n);
print_bin(show, n);
- printf("%5d %2d %3d xbt @%5d in %s %s:%d\n", show, n, r, get_bits_count(s)-n, file, func, line);
+ av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d xbt @%5d in %s %s:%d\n", show, n, r, get_bits_count(s)-n, file, func, line);
return r;
}
#define tprintf(...) {}
#endif
+static inline int decode012(GetBitContext *gb){
+ int n;
+ n = get_bits1(gb);
+ if (n == 0)
+ return 0;
+ else
+ return get_bits1(gb) + 1;
+}
+
#endif /* BITSTREAM_H */