From: Linjie Fu <linjie...@intel.com>
According to 7.3.6.1, use_integer_mv_flag should be parsed if
motion_vector_resolution_control_idc equals to 2. If not present, it
equals to motion_vector_resolution_control_idc.
Signed-off-by: Linjie Fu <linjie.justin...@gmail.com>
Signed-off-by: Fei Wang <fei.w.w...@intel.com>
---
libavcodec/hevcdec.c | 8 ++++++++
libavcodec/hevcdec.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index f9a97ac7f5..52fa627133 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -839,6 +839,14 @@ static int hls_slice_header(HEVCContext *s)
sh->max_num_merge_cand);
return AVERROR_INVALIDDATA;
}
+
+ // Syntax in 7.3.6.1
+ if (s->ps.sps->motion_vector_resolution_control_idc == 2)
+ sh->use_integer_mv_flag = get_bits1(gb);
+ else
+ // Inferred to be equal to
motion_vector_resolution_control_idc if not present
+ sh->use_integer_mv_flag =
s->ps.sps->motion_vector_resolution_control_idc;
+
}
sh->slice_qp_delta = get_se_golomb(gb);
diff --git a/libavcodec/hevcdec.h b/libavcodec/hevcdec.h
index 7841ba8565..a7fc669bcb 100644
--- a/libavcodec/hevcdec.h
+++ b/libavcodec/hevcdec.h
@@ -305,6 +305,7 @@ typedef struct SliceHeader {
int tc_offset; ///< tc_offset_div2 * 2
unsigned int max_num_merge_cand; ///< 5 - 5_minus_max_num_merge_cand
+ uint8_t use_integer_mv_flag;
unsigned *entry_point_offset;
int * offset;
--
2.25.1
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