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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-08-11 15:15:19 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-08-11 15:31:59 +0200 |
| commit | 6badd558ce19dffe8c3ea3e687812b933e0cb2ff (patch) | |
| tree | 3754351480d697c76b1c7f234ad0352ff21284e1 | |
| parent | a1fe3b41507300dbaa9a082eb43155f07fcf5124 (diff) | |
| download | ffmpeg-6badd558ce19dffe8c3ea3e687812b933e0cb2ff.tar.gz | |
avcodec/get_bits: add BITS_LEFT() for finding the bits left with an opened reader
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 11512d70facf42fb490168d33a5986448cf36074)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/get_bits.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h index d8d7b6ea08..d67263c619 100644 --- a/libavcodec/get_bits.h +++ b/libavcodec/get_bits.h @@ -113,6 +113,9 @@ typedef struct RL_VLC_ELEM { * LAST_SKIP_BITS(name, gb, num) * Like SKIP_BITS, to be used if next call is UPDATE_CACHE or CLOSE_READER. * + * BITS_LEFT(name, gb) + * Return the number of bits left + * * For examples see get_bits, show_bits, skip_bits, get_vlc. */ @@ -179,6 +182,8 @@ typedef struct RL_VLC_ELEM { name ## _index = FFMIN(name ## _size_plus8, name ## _index + (num)) #endif +#define BITS_LEFT(name, gb) ((int)((gb)->size_in_bits - name ## _index)) + #define SKIP_BITS(name, gb, num) \ do { \ SKIP_CACHE(name, gb, num); \ |