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avcodec/cbs_h2645: add helper macros for signed values

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Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2019-04-15 17:48:55 -03:00
parent 5006dcdf9a
commit 3dc6adf326
1 changed files with 20 additions and 0 deletions
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20
libavcodec/cbs_h2645.c
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@ -255,6 +255,8 @@ static int cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc,
#define flag(name) u(1, name, 0, 1)
#define ue(name, range_min, range_max) \
xue(name, current->name, range_min, range_max, 0)
#define i(width, name, range_min, range_max) \
xi(width, name, current->name, range_min, range_max, 0)
#define se(name, range_min, range_max) \
xse(name, current->name, range_min, range_max, 0)
@ -264,6 +266,8 @@ static int cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc,
xu(1, name, current->name, 0, 1, subs, __VA_ARGS__)
#define ues(name, range_min, range_max, subs, ...) \
xue(name, current->name, range_min, range_max, subs, __VA_ARGS__)
#define is(width, name, range_min, range_max, subs, ...) \
xi(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)
#define ses(name, range_min, range_max, subs, ...) \
xse(name, current->name, range_min, range_max, subs, __VA_ARGS__)
@ -291,6 +295,13 @@ static int cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc,
&value, range_min, range_max)); \
var = value; \
} while (0)
#define xi(width, name, var, range_min, range_max, subs, ...) do { \
int32_t value = range_min; \
CHECK(ff_cbs_read_signed(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
&value, range_min, range_max)); \
var = value; \
} while (0)
#define xse(name, var, range_min, range_max, subs, ...) do { \
int32_t value = range_min; \
CHECK(cbs_read_se_golomb(ctx, rw, #name, \
@ -338,6 +349,7 @@ static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
#undef READWRITE
#undef RWContext
#undef xu
#undef xi
#undef xue
#undef xse
#undef infer
@ -362,6 +374,12 @@ static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
SUBSCRIPTS(subs, __VA_ARGS__), \
value, range_min, range_max)); \
} while (0)
#define xi(width, name, var, range_min, range_max, subs, ...) do { \
int32_t value = var; \
CHECK(ff_cbs_write_signed(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), \
value, range_min, range_max)); \
} while (0)
#define xse(name, var, range_min, range_max, subs, ...) do { \
int32_t value = var; \
CHECK(cbs_write_se_golomb(ctx, rw, #name, \
@ -402,9 +420,11 @@ static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
#undef READWRITE
#undef RWContext
#undef xu
#undef xi
#undef xue
#undef xse
#undef u
#undef i
#undef flag
#undef ue
#undef se