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avcodec/cbs_av1: use the new signed value read/write functions

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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 17:52:38 -03:00
parent 137c0fcad1
commit e2f766e13f
1 changed files with 8 additions and 60 deletions
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68
libavcodec/cbs_av1.c
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@ -207,62 +207,6 @@ static int cbs_av1_write_leb128(CodedBitstreamContext *ctx, PutBitContext *pbc,
return 0;
}
static int cbs_av1_read_su(CodedBitstreamContext *ctx, GetBitContext *gbc,
int width, const char *name,
const int *subscripts, int32_t *write_to)
{
int position;
int32_t value;
if (ctx->trace_enable)
position = get_bits_count(gbc);
if (get_bits_left(gbc) < width) {
av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid signed value at "
"%s: bitstream ended.\n", name);
return AVERROR_INVALIDDATA;
}
value = get_sbits(gbc, width);
if (ctx->trace_enable) {
char bits[33];
int i;
for (i = 0; i < width; i++)
bits[i] = value & (1 << (width - i - 1)) ? '1' : '0';
bits[i] = 0;
ff_cbs_trace_syntax_element(ctx, position,
name, subscripts, bits, value);
}
*write_to = value;
return 0;
}
static int cbs_av1_write_su(CodedBitstreamContext *ctx, PutBitContext *pbc,
int width, const char *name,
const int *subscripts, int32_t value)
{
if (put_bits_left(pbc) < width)
return AVERROR(ENOSPC);
if (ctx->trace_enable) {
char bits[33];
int i;
for (i = 0; i < width; i++)
bits[i] = value & (1 << (width - i - 1)) ? '1' : '0';
bits[i] = 0;
ff_cbs_trace_syntax_element(ctx, put_bits_count(pbc),
name, subscripts, bits, value);
}
put_sbits(pbc, width, value);
return 0;
}
static int cbs_av1_read_ns(CodedBitstreamContext *ctx, GetBitContext *gbc,
uint32_t n, const char *name,
const int *subscripts, uint32_t *write_to)
@ -639,8 +583,10 @@ static size_t cbs_av1_get_payload_bytes_left(GetBitContext *gbc)
#define xsu(width, name, var, subs, ...) do { \
int32_t value = 0; \
CHECK(cbs_av1_read_su(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), &value)); \
CHECK(ff_cbs_read_signed(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), &value, \
MIN_INT_BITS(width), \
MAX_INT_BITS(width))); \
var = value; \
} while (0)
@ -723,8 +669,10 @@ static size_t cbs_av1_get_payload_bytes_left(GetBitContext *gbc)
} while (0)
#define xsu(width, name, var, subs, ...) do { \
CHECK(cbs_av1_write_su(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), var)); \
CHECK(ff_cbs_write_signed(ctx, rw, width, #name, \
SUBSCRIPTS(subs, __VA_ARGS__), var, \
MIN_INT_BITS(width), \
MAX_INT_BITS(width))); \
} while (0)
#define uvlc(name, range_min, range_max) do { \