ref: a3856f049d188b971c0956b1b5cef350212f03a3
dir: /src/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_SRC_PICTURE_H
#define DAV1D_SRC_PICTURE_H
#include <stdatomic.h>
#include "src/thread.h"
#include "dav1d/picture.h"
#include "src/thread_data.h"
#include "src/ref.h"
enum PlaneType {
PLANE_TYPE_Y,
PLANE_TYPE_UV,
PLANE_TYPE_BLOCK,
PLANE_TYPE_ALL,
};
typedef struct Dav1dThreadPicture {
Dav1dPicture p;
int visible;
struct thread_data *t;
// [0] block data (including segmentation map and motion vectors)
// [1] pixel data
atomic_uint *progress;
} Dav1dThreadPicture;
typedef struct Dav1dPictureBuffer {
void *data;
struct Dav1dPictureBuffer *next;
} Dav1dPictureBuffer;
/*
* Allocate a picture with custom border size.
*/
int dav1d_thread_picture_alloc(Dav1dContext *c, Dav1dFrameContext *f, const int bpc);
/**
* Allocate a picture with identical metadata to an existing picture.
* The width is a separate argument so this function can be used for
* super-res, where the width changes, but everything else is the same.
* For the more typical use case of allocating a new image of the same
* dimensions, use src->p.w as width.
*/
int dav1d_picture_alloc_copy(Dav1dContext *c, Dav1dPicture *dst, const int w,
const Dav1dPicture *src);
/**
* Create a copy of a picture.
*/
void dav1d_picture_ref(Dav1dPicture *dst, const Dav1dPicture *src);
void dav1d_thread_picture_ref(Dav1dThreadPicture *dst,
const Dav1dThreadPicture *src);
void dav1d_thread_picture_unref(Dav1dThreadPicture *p);
/**
* Move a picture reference.
*/
void dav1d_picture_move_ref(Dav1dPicture *dst, Dav1dPicture *src);
/**
* Wait for picture to reach a certain stage.
*
* y is in full-pixel units. If pt is not UV, this is in luma
* units, else it is in chroma units.
* plane_type is used to determine how many pixels delay are
* introduced by loopfilter processes.
*
* Returns 0 on success, and 1 if there was an error while decoding p
*/
int dav1d_thread_picture_wait(const Dav1dThreadPicture *p, int y,
enum PlaneType plane_type);
/**
* Signal decoding progress.
*
* y is in full-pixel luma units. FRAME_ERROR is used to signal a decoding
* error to frames using this frame as reference frame.
* plane_type denotes whether we have completed block data (pass 1;
* PLANE_TYPE_BLOCK), pixel data (pass 2, PLANE_TYPE_Y) or both (no
* 2-pass decoding; PLANE_TYPE_ALL).
*/
void dav1d_thread_picture_signal(const Dav1dThreadPicture *p, int y,
enum PlaneType plane_type);
int dav1d_default_picture_alloc(Dav1dPicture *p, void *cookie);
void dav1d_default_picture_release(Dav1dPicture *p, void *cookie);
void dav1d_picture_unref_internal(Dav1dPicture *p);
#endif /* DAV1D_SRC_PICTURE_H */