mirror of https://github.com/mpv-player/mpv
140 lines
5.3 KiB
C
140 lines
5.3 KiB
C
/*
|
|
* This file is part of MPlayer.
|
|
*
|
|
* MPlayer is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* MPlayer 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef MPLAYER_MP_IMAGE_H
|
|
#define MPLAYER_MP_IMAGE_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <inttypes.h>
|
|
#include "core/mp_msg.h"
|
|
#include "csputils.h"
|
|
#include "video/img_format.h"
|
|
|
|
#define MP_PALETTE_SIZE (256 * 4)
|
|
|
|
#define MP_IMGFIELD_ORDERED 0x01
|
|
#define MP_IMGFIELD_TOP_FIRST 0x02
|
|
#define MP_IMGFIELD_REPEAT_FIRST 0x04
|
|
#define MP_IMGFIELD_TOP 0x08
|
|
#define MP_IMGFIELD_BOTTOM 0x10
|
|
#define MP_IMGFIELD_INTERLACED 0x20
|
|
|
|
/* Memory management:
|
|
* - mp_image is a light-weight reference to the actual image data (pixels).
|
|
* The actual image data is reference counted and can outlive mp_image
|
|
* allocations. mp_image references can be created with mp_image_new_ref()
|
|
* and free'd with talloc_free() (the helpers mp_image_setrefp() and
|
|
* mp_image_unrefp() can also be used). The actual image data is free'd when
|
|
* the last mp_image reference to it is free'd.
|
|
* - Each mp_image has a clear owner. The owner can do anything with it, such
|
|
* as changing mp_image fields. Instead of making ownership ambiguous by
|
|
* sharing a mp_image reference, new references should be created.
|
|
* - Write access to the actual image data is allowed only after calling
|
|
* mp_image_make_writeable(), or if mp_image_is_writeable() returns true.
|
|
* Conceptually, images can be changed by their owner only, and copy-on-write
|
|
* is used to ensure that other references do not see any changes to the
|
|
* image data. mp_image_make_writeable() will do that copy if required.
|
|
*/
|
|
typedef struct mp_image {
|
|
unsigned int flags;
|
|
struct mp_imgfmt_desc fmt;
|
|
|
|
// fields redundant to fmt, for convenience or compatibility
|
|
unsigned int imgfmt;
|
|
int num_planes;
|
|
int chroma_x_shift; // horizontal
|
|
int chroma_y_shift; // vertical
|
|
|
|
int w,h; // visible dimensions
|
|
int display_w,display_h; // if set (!= 0), anamorphic size
|
|
uint8_t *planes[MP_MAX_PLANES];
|
|
int stride[MP_MAX_PLANES];
|
|
|
|
char * qscale;
|
|
int qstride;
|
|
int pict_type; // 0->unknown, 1->I, 2->P, 3->B
|
|
int fields;
|
|
int qscale_type; // 0->mpeg1/4/h263, 1->mpeg2
|
|
|
|
/* redundant */
|
|
int chroma_width;
|
|
int chroma_height;
|
|
int plane_w[MP_MAX_PLANES];
|
|
int plane_h[MP_MAX_PLANES];
|
|
|
|
enum mp_csp colorspace;
|
|
enum mp_csp_levels levels;
|
|
/* only inside filter chain */
|
|
double pts;
|
|
/* memory management */
|
|
struct m_refcount *refcount;
|
|
/* for private use */
|
|
void* priv;
|
|
} mp_image_t;
|
|
|
|
struct mp_image *mp_image_alloc(unsigned int fmt, int w, int h);
|
|
void mp_image_copy(struct mp_image *dmpi, struct mp_image *mpi);
|
|
void mp_image_copy_attributes(struct mp_image *dmpi, struct mp_image *mpi);
|
|
struct mp_image *mp_image_new_copy(struct mp_image *img);
|
|
struct mp_image *mp_image_new_ref(struct mp_image *img);
|
|
bool mp_image_is_writeable(struct mp_image *img);
|
|
void mp_image_make_writeable(struct mp_image *img);
|
|
void mp_image_setrefp(struct mp_image **p_img, struct mp_image *new_value);
|
|
void mp_image_unrefp(struct mp_image **p_img);
|
|
|
|
void mp_image_clear(struct mp_image *mpi, int x0, int y0, int x1, int y1);
|
|
void mp_image_crop(struct mp_image *img, int x0, int y0, int x1, int y1);
|
|
void mp_image_crop_rc(struct mp_image *img, struct mp_rect rc);
|
|
void mp_image_vflip(struct mp_image *img);
|
|
|
|
void mp_image_set_size(struct mp_image *mpi, int w, int h);
|
|
void mp_image_set_display_size(struct mp_image *mpi, int dw, int dh);
|
|
|
|
void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt);
|
|
void mp_image_steal_data(struct mp_image *dst, struct mp_image *src);
|
|
|
|
struct mp_image *mp_image_new_custom_ref(struct mp_image *img, void *arg,
|
|
void (*free)(void *arg));
|
|
|
|
struct mp_image *mp_image_new_external_ref(struct mp_image *img, void *arg,
|
|
void (*ref)(void *arg),
|
|
void (*unref)(void *arg),
|
|
bool (*is_unique)(void *arg),
|
|
void (*free)(void *arg));
|
|
|
|
enum mp_csp mp_image_csp(struct mp_image *img);
|
|
enum mp_csp_levels mp_image_levels(struct mp_image *img);
|
|
|
|
struct mp_csp_details;
|
|
void mp_image_set_colorspace_details(struct mp_image *image,
|
|
struct mp_csp_details *csp);
|
|
|
|
struct AVFrame;
|
|
void mp_image_copy_fields_from_av_frame(struct mp_image *dst,
|
|
struct AVFrame *src);
|
|
struct mp_image *mp_image_from_av_frame(struct AVFrame *av_frame);
|
|
|
|
// align must be a power of two (align >= 1), v >= 0
|
|
#define MP_ALIGN_UP(v, align) FFALIGN(v, align)
|
|
#define MP_ALIGN_DOWN(v, align) ((v) & ~((align) - 1))
|
|
|
|
#endif /* MPLAYER_MP_IMAGE_H */
|