avcodec/vvc/sei: add decode_display_orientation

Wu Jianhua committed 1 year ago

Commit 40bc5e11 parent d1406481 file · +27 −0Browse files

Showing the changes to libavcodec (1 of 1 file). Show all

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@@ -94,6 +94,30 @@ static int decode_decoded_picture_hash(H274SEIPictureHash *h, const SEIRawDecode · 93 unmodified lines
94	94	return 0;
95	95	}
96	96
	97	+static int decode_display_orientation(H2645SEIDisplayOrientation h, const SEIRawDisplayOrientation s)
	98	+{
	99	+ int degrees[] = { 0, 0x8000, 0x4000, 0xC000 };
	100	+
	101	+ h->present = !s->display_orientation_cancel_flag;
	102	+ if (h->present) {
	103	+ if (s->display_orientation_transform_type > 7)
	104	+ return AVERROR_INVALIDDATA;
	105	+
	106	+ h->vflip = 0;
	107	+ if (s->display_orientation_transform_type == 1 \|\|
	108	+ s->display_orientation_transform_type == 3 \|\|
	109	+ s->display_orientation_transform_type == 4 \|\|
	110	+ s->display_orientation_transform_type == 6) {
	111	+ h->hflip = 1;
	112	+ } else {
	113	+ h->hflip = 0;
	114	+ }
	115	+ h->anticlockwise_rotation = degrees[s->display_orientation_transform_type >> 1];
	116	+ }
	117	+
	118	+ return 0;
	119	+}
	120	+
97	121	int ff_vvc_sei_decode(VVCSEI s, const H266RawSEI sei, const struct VVCFrameContext *fc)
98	122	{
99	123	H2645SEI *c = &s->common;
@@ -116,6 +140,9 @@ int ff_vvc_sei_decode(VVCSEI s, const H266RawSEI sei, const struct VVCFrameCon · 16 unmodified lines
116	140	case SEI_TYPE_DECODED_PICTURE_HASH:
117	141	return decode_decoded_picture_hash(&s->picture_hash, payload);
118	142
	143	+ case SEI_TYPE_DISPLAY_ORIENTATION:
	144	+ return decode_display_orientation(&s->common.display_orientation, payload);
	145	+
119	146	default:
120	147	av_log(fc->log_ctx, AV_LOG_DEBUG, "Skipped %s SEI %d\n",
121	148	sei->nal_unit_header.nal_unit_type == VVC_PREFIX_SEI_NUT ?

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