Quoting Guo, Yejun (2021-03-26 09:09:29)
> Signed-off-by: Guo, Yejun <yejun....@intel.com>
> ---
> doc/APIchanges | 2 ++
> libavutil/Makefile | 1 +
> libavutil/boundingbox.h | 79 +++++++++++++++++++++++++++++++++++++++++
> libavutil/frame.c | 1 +
> libavutil/frame.h | 7 ++++
> 5 files changed, 90 insertions(+)
> create mode 100644 libavutil/boundingbox.h
>
> diff --git a/doc/APIchanges b/doc/APIchanges
> index b41dadee8d..160b020d9d 100644
> --- a/doc/APIchanges
> +++ b/doc/APIchanges
> @@ -14,6 +14,8 @@ libavutil: 2017-10-21
>
>
> API changes, most recent first:
> +2021-03-xx - xxxxxxxxxx - lavu 56.xx.100 - frame.h boundingbox.h
> + Add AV_FRAME_DATA_BOUNDING_BOXES
>
> 2021-03-21 - xxxxxxxxxx - lavu 56.72.100 - frame.h
> Deprecated av_get_colorspace_name().
> diff --git a/libavutil/Makefile b/libavutil/Makefile
> index 27bafe9e12..7e1dc713ac 100644
> --- a/libavutil/Makefile
> +++ b/libavutil/Makefile
> @@ -11,6 +11,7 @@ HEADERS = adler32.h
> \
> avutil.h \
> base64.h \
> blowfish.h \
> + boundingbox.h \
> bprint.h \
> bswap.h \
> buffer.h \
> diff --git a/libavutil/boundingbox.h b/libavutil/boundingbox.h
> new file mode 100644
> index 0000000000..5e2fdd55e9
> --- /dev/null
> +++ b/libavutil/boundingbox.h
> @@ -0,0 +1,79 @@
> +/*
> + * This file is part of FFmpeg.
> + *
> + * FFmpeg is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * FFmpeg is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with FFmpeg; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
> USA
> + */
> +
> +#ifndef AVUTIL_BOUNDINGBOX_H
> +#define AVUTIL_BOUNDINGBOX_H
> +
> +#include "libavutil/rational.h"
> +
> +typedef struct AVBoundingBox {
> + /**
> + * Distance in pixels from the top edge of the frame to top
> + * and bottom, and from the left edge of the frame to left and
> + * right, defining the bounding box.
> + */
> + int top;
> + int left;
> + int bottom;
> + int right;
Is this allowed to be negative? Can/should this be size_t?
> +
> +#define AV_BBOX_LABEL_NAME_MAX_SIZE 32
> +
> + /**
> + * Detect result with confidence
> + */
> + char detect_label[AV_BBOX_LABEL_NAME_MAX_SIZE];
> + AVRational detect_confidence;
> +
> + /**
> + * At most 4 classifications based on the detected bounding box.
> + * For example, we can get max 4 different attributes with 4 different
> + * DNN models on one bounding box.
> + * classify_count is zero if no classification.
> + */
> +#define AV_NUM_BBOX_CLASSIFY 4
> + uint32_t classify_count;
size_t?
> + char classify_labels[AV_NUM_BBOX_CLASSIFY][AV_BBOX_LABEL_NAME_MAX_SIZE];
> + AVRational classify_confidences[AV_NUM_BBOX_CLASSIFY];
> +} AVBoundingBox;
> +
> +typedef struct AVBoundingBoxHeader {
This structure is not extensible in an ABI-compatible way.
> + /**
> + * Information about how the bounding box is generated.
> + * for example, the DNN model name.
> + */
> + char source[128];
> +
> + /**
> + * The size of frame when it is detected.
> + */
> + int frame_width;
> + int frame_height;
Why?
> +
> + /**
> + * Number of bounding boxes.
> + */
> + uint32_t nb_bbox;
size_t?
--
Anton Khirnov
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