ref: fb8078a676711acdad749f4d478ee72d8aa6c471
dir: /include/dav1d/picture.h/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2018, Two Orioles, LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DAV1D_PICTURE_H__
#define __DAV1D_PICTURE_H__
#include <stddef.h>
#include <stdint.h>
#include "common.h"
enum Dav1dPixelLayout {
DAV1D_PIXEL_LAYOUT_I400, ///< monochrome
DAV1D_PIXEL_LAYOUT_I420, ///< 4:2:0 planar
DAV1D_PIXEL_LAYOUT_I422, ///< 4:2:2 planar
DAV1D_PIXEL_LAYOUT_I444, ///< 4:4:4 planar
};
enum Dav1dFrameType {
DAV1D_FRAME_TYPE_KEY = 0, ///< Key Intra frame
DAV1D_FRAME_TYPE_INTER = 1, ///< Inter frame
DAV1D_FRAME_TYPE_INTRA = 2, ///< Non key Intra frame
DAV1D_FRAME_TYPE_SWITCH = 3, ///< Switch Inter frame
};
enum Dav1dColorPrimaries {
DAV1D_COLOR_PRI_BT709 = 1,
DAV1D_COLOR_PRI_UNKNOWN = 2,
DAV1D_COLOR_PRI_BT470M = 4,
DAV1D_COLOR_PRI_BT470BG = 5,
DAV1D_COLOR_PRI_BT601 = 6,
DAV1D_COLOR_PRI_SMPTE240 = 7,
DAV1D_COLOR_PRI_FILM = 8,
DAV1D_COLOR_PRI_BT2020 = 9,
DAV1D_COLOR_PRI_XYZ = 10,
DAV1D_COLOR_PRI_SMPTE431 = 11,
DAV1D_COLOR_PRI_SMPTE432 = 12,
DAV1D_COLOR_PRI_EBU3213 = 22,
};
enum Dav1dTransferCharacteristics {
DAV1D_TRC_BT709 = 1,
DAV1D_TRC_UNKNOWN = 2,
DAV1D_TRC_BT470M = 4,
DAV1D_TRC_BT470BG = 5,
DAV1D_TRC_BT601 = 6,
DAV1D_TRC_SMPTE240 = 7,
DAV1D_TRC_LINEAR = 8,
DAV1D_TRC_LOG100 = 9, ///< logarithmic (100:1 range)
DAV1D_TRC_LOG100_SQRT10 = 10, ///< lograithmic (100*sqrt(10):1 range)
DAV1D_TRC_IEC61966 = 11,
DAV1D_TRC_BT1361 = 12,
DAV1D_TRC_SRGB = 13,
DAV1D_TRC_BT2020_10BIT = 14,
DAV1D_TRC_BT2020_12BIT = 15,
DAV1D_TRC_SMPTE2084 = 16, ///< PQ
DAV1D_TRC_SMPTE428 = 17,
DAV1D_TRC_HLG = 18, ///< hybrid log/gamma (BT.2100 / ARIB STD-B67)
};
enum Dav1dMatrixCoefficients {
DAV1D_MC_IDENTITY = 0,
DAV1D_MC_BT709 = 1,
DAV1D_MC_UNKNOWN = 2,
DAV1D_MC_FCC = 4,
DAV1D_MC_BT470BG = 5,
DAV1D_MC_BT601 = 6,
DAV1D_MC_SMPTE240 = 7,
DAV1D_MC_SMPTE_YCGCO = 8,
DAV1D_MC_BT2020_NCL = 9,
DAV1D_MC_BT2020_CL = 10,
DAV1D_MC_SMPTE2085 = 11,
DAV1D_MC_CHROMAT_NCL = 12, ///< Chromaticity-derived
DAV1D_MC_CHROMAT_CL = 13,
DAV1D_MC_ICTCP = 14,
};
enum Dav1dChromaSamplePosition {
DAV1D_CHR_UNKNOWN = 0,
DAV1D_CHR_VERTICAL = 1, ///< Horizontally co-located with luma(0, 0)
///< sample, between two vertical samples
DAV1D_CHR_COLOCATED = 2, ///< Co-located with luma(0, 0) sample
};
typedef struct Dav1dPictureParameters {
int w; ///< width (in pixels)
int h; ///< height (in pixels)
enum Dav1dPixelLayout layout; ///< format of the picture
enum Dav1dFrameType type; ///< type of the picture
int bpc; ///< bits per pixel component (8 or 10)
enum Dav1dColorPrimaries pri; ///< color primaries (av1)
enum Dav1dTransferCharacteristics trc; ///< transfer characteristics (av1)
enum Dav1dMatrixCoefficients mtrx; ///< matrix coefficients (av1)
enum Dav1dChromaSamplePosition chr; ///< chroma sample position (av1)
/**
* Pixel data uses JPEG pixel range ([0,255] for 8bits) instead of
* MPEG pixel range ([16,235] for 8bits luma, [16,240] for 8bits chroma).
*/
int fullrange;
} Dav1dPictureParameters;
typedef struct Dav1dPicture {
/**
* Pointers to planar image data (Y is [0], U is [1], V is [2]). The data
* should be bytes (for 8 bpc) or words (for 10 bpc). In case of words
* containing 10 bpc image data, the pixels should be located in the LSB
* bits, so that values range between [0, 1023]; the upper bits should be
* zero'ed out.
*/
void *data[3];
struct Dav1dRef *ref; ///< allocation origin
/**
* Number of bytes between 2 lines in data[] for luma [0] or chroma [1].
*/
ptrdiff_t stride[2];
Dav1dPictureParameters p;
int poc; ///< frame number
void *allocator_data; ///< pointer managed by the allocator
} Dav1dPicture;
typedef struct Dav1dPicAllocator {
void *cookie; ///< custom data to pass to the allocator callbacks.
/**
* Allocate the picture buffer based on the Dav1dPictureParameters.
*
* The data[0], data[1] and data[2] must be 32 bits aligned and with a
* pixel width/height multiple of 128 pixels.
* data[1] and data[2] must share the same stride[1].
*
* @param pic The picture to allocate the buffer for. The callback needs to
* fill the picture data[0], data[1], data[2], stride[0] and
* stride[1].
* The allocator can fill the pic allocator_data pointer with
* a custom pointer that will be passed to
* release_picture_callback().
* @param cookie Custom pointer passed to all calls.
*
* @return 0 on success. A negative errno value on error.
*/
int (*alloc_picture_callback)(Dav1dPicture *pic, void *cookie);
/**
* Release the picture buffer.
*
* @param buf The buffer that was returned by
* alloc_picture_callback().
* @param allocator_tag The Dav1dPicture.allocator_data that was filled by
* alloc_picture_callback()
* @param cookie Custom pointer passed to all calls.
*/
void (*release_picture_callback)(uint8_t *buf, void *allocator_data,
void *cookie);
} Dav1dPicAllocator;
/**
* Release reference to a picture.
*/
DAV1D_API void dav1d_picture_unref(Dav1dPicture *p);
#endif /* __DAV1D_PICTURE_H__ */