The max and default values are 15, not 16.
---
libavcodec/cbs_h264_syntax_template.c | 8 ++++----
libavcodec/vaapi_encode_h264.c | 4 ++--
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/libavcodec/cbs_h264_syntax_template.c
b/libavcodec/cbs_h264_syntax_template.c
index 027b555db6..21edcb799e 100644
--- a/libavcodec/cbs_h264_syntax_template.c
+++ b/libavcodec/cbs_h264_syntax_template.c
@@ -185,16 +185,16 @@ static int FUNC(vui_parameters)(CodedBitstreamContext
*ctx, RWContext *rw,
flag(motion_vectors_over_pic_boundaries_flag);
ue(max_bytes_per_pic_denom, 0, 16);
ue(max_bits_per_mb_denom, 0, 16);
- ue(log2_max_mv_length_horizontal, 0, 16);
- ue(log2_max_mv_length_vertical, 0, 16);
+ ue(log2_max_mv_length_horizontal, 0, 15);
+ ue(log2_max_mv_length_vertical, 0, 15);
ue(max_num_reorder_frames, 0, H264_MAX_DPB_FRAMES);
ue(max_dec_frame_buffering, 0, H264_MAX_DPB_FRAMES);
} else {
infer(motion_vectors_over_pic_boundaries_flag, 1);
infer(max_bytes_per_pic_denom, 2);
infer(max_bits_per_mb_denom, 1);
- infer(log2_max_mv_length_horizontal, 16);
- infer(log2_max_mv_length_vertical, 16);
+ infer(log2_max_mv_length_horizontal, 15);
+ infer(log2_max_mv_length_vertical, 15);
if ((sps->profile_idc == 44 || sps->profile_idc == 86 ||
sps->profile_idc == 110 || sps->profile_idc == 110 ||
diff --git a/libavcodec/vaapi_encode_h264.c b/libavcodec/vaapi_encode_h264.c
index 4034053dc0..0d7780110c 100644
--- a/libavcodec/vaapi_encode_h264.c
+++ b/libavcodec/vaapi_encode_h264.c
@@ -491,8 +491,8 @@ static int
vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
sps->vui.bitstream_restriction_flag = 1;
sps->vui.motion_vectors_over_pic_boundaries_flag = 1;
- sps->vui.log2_max_mv_length_horizontal = 16;
- sps->vui.log2_max_mv_length_vertical = 16;
+ sps->vui.log2_max_mv_length_horizontal = 15;
+ sps->vui.log2_max_mv_length_vertical = 15;
sps->vui.max_num_reorder_frames = (ctx->b_per_p > 0);
sps->vui.max_dec_frame_buffering = sps->max_num_ref_frames;
--
2.16.3
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