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get_bits: remove strange/obsolete comments

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-12-17 01:07:32 +00:00
parent e42bb0ee01
commit 5d8122db5c
1 changed files with 1 additions and 9 deletions
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10
libavcodec/get_bits.h
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@ -49,8 +49,6 @@
#define UNCHECKED_BITSTREAM_READER !CONFIG_SAFE_BITSTREAM_READER #define UNCHECKED_BITSTREAM_READER !CONFIG_SAFE_BITSTREAM_READER
#endif #endif
/* bit input */
/* buffer, buffer_end and size_in_bits must be present and used by every reader */
typedef struct GetBitContext { typedef struct GetBitContext {
const uint8_t *buffer, *buffer_end; const uint8_t *buffer, *buffer_end;
int index; int index;
@ -157,7 +155,6 @@ for examples see get_bits, show_bits, skip_bits, get_vlc
#endif #endif
// FIXME name?
#if UNCHECKED_BITSTREAM_READER #if UNCHECKED_BITSTREAM_READER
# define SKIP_COUNTER(name, gb, num) name##_index += (num) # define SKIP_COUNTER(name, gb, num) name##_index += (num)
#else #else
@ -200,7 +197,6 @@ static inline void skip_bits_long(GetBitContext *s, int n){
* read mpeg1 dc style vlc (sign bit + mantisse with no MSB). * read mpeg1 dc style vlc (sign bit + mantisse with no MSB).
* if MSB not set it is negative * if MSB not set it is negative
* @param n length in bits * @param n length in bits
* @author BERO
*/ */
static inline int get_xbits(GetBitContext *s, int n) static inline int get_xbits(GetBitContext *s, int n)
{ {
@ -254,7 +250,6 @@ static inline unsigned int show_bits(GetBitContext *s, int n)
static inline void skip_bits(GetBitContext *s, int n) 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); OPEN_READER(re, s);
UPDATE_CACHE(re, s); UPDATE_CACHE(re, s);
LAST_SKIP_BITS(re, s, n); LAST_SKIP_BITS(re, s, n);
@ -344,9 +339,6 @@ static inline int check_marker(GetBitContext *s, const char *msg)
* @param buffer bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE bytes larger than the actual read bits * @param buffer bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE bytes larger than the actual read bits
* because some optimized bitstream readers read 32 or 64 bit at once and could read over the end * 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 * @param bit_size the size of the buffer in bits
*
* While GetBitContext stores the buffer size, for performance reasons you are
* responsible for checking for the buffer end yourself (take advantage of the padding)!
*/ */
static inline void init_get_bits(GetBitContext *s, const uint8_t *buffer, static inline void init_get_bits(GetBitContext *s, const uint8_t *buffer,
int bit_size) int bit_size)
@ -462,7 +454,7 @@ void free_vlc(VLC *vlc);
/** /**
* Parse a vlc code, faster than get_vlc(). * Parse a vlc code.
* @param bits is the number of bits which will be read at once, must be * @param bits is the number of bits which will be read at once, must be
* identical to nb_bits in init_vlc() * identical to nb_bits in init_vlc()
* @param max_depth is the number of times bits bits must be read to completely * @param max_depth is the number of times bits bits must be read to completely