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av1dec: Add force_integer_mv derived field for decoder use

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This is not the same as the syntax element value in the frame header
because the specification parsing tables override the value on intra
frames.
This commit is contained in:
Mark Thompson 2024-04-27 16:22:05 +01:00
parent 9e77188cba
commit 6f56e0e7e5
2 changed files with 13 additions and 0 deletions
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7
libavcodec/av1dec.c
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@ -725,6 +725,8 @@ static void av1_frame_replace(AV1Frame *dst, const AV1Frame *src)
sizeof(dst->ref_frame_sign_bias));
memcpy(dst->order_hints, src->order_hints,
sizeof(dst->order_hints));
dst->force_integer_mv = src->force_integer_mv;
}
static av_cold int av1_decode_free(AVCodecContext *avctx)
@ -1255,6 +1257,11 @@ static int get_current_frame(AVCodecContext *avctx)
order_hint_info(s);
load_grain_params(s);
s->cur_frame.force_integer_mv =
s->raw_frame_header->force_integer_mv ||
s->raw_frame_header->frame_type == AV1_FRAME_KEY ||
s->raw_frame_header->frame_type == AV1_FRAME_INTRA_ONLY;
return ret;
}

6
libavcodec/av1dec.h
View File

@ -67,6 +67,12 @@ typedef struct AV1Frame {
// OrderHints[] when this is the current frame, otherwise
// SavedOrderHints[s][] when is the reference frame in slot s.
uint8_t order_hints[AV1_TOTAL_REFS_PER_FRAME];
// force_integer_mv value at the end of the frame header parsing.
// This is not the same as the syntax element value in
// raw_frame_header because the specification parsing tables
// override the value on intra frames.
uint8_t force_integer_mv;
} AV1Frame;
typedef struct TileGroupInfo {