mirror of
https://github.com/mpv-player/mpv
synced 2024-08-28 05:46:13 +02:00
![wm4](/assets/img/avatar_default.png)
Helps with gif, probably does unwanted things with other formats. This doesn't handle --end quite correctly, but this could be added later. Fixes #3924.
165 lines
6.7 KiB
C
165 lines
6.7 KiB
C
/*
|
|
* This file is part of mpv.
|
|
*
|
|
* mpv 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.
|
|
*
|
|
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#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 "common/common.h"
|
|
#include "common/msg.h"
|
|
#include "csputils.h"
|
|
#include "video/img_format.h"
|
|
|
|
#define MP_PALETTE_SIZE (256 * 4)
|
|
|
|
#define MP_IMGFIELD_TOP_FIRST 0x02
|
|
#define MP_IMGFIELD_REPEAT_FIRST 0x04
|
|
#define MP_IMGFIELD_INTERLACED 0x20
|
|
|
|
// Describes image parameters that usually stay constant.
|
|
// New fields can be added in the future. Code changing the parameters should
|
|
// usually copy the whole struct, so that fields added later will be preserved.
|
|
struct mp_image_params {
|
|
enum mp_imgfmt imgfmt; // pixel format
|
|
enum mp_imgfmt hw_subfmt; // underlying format for some hwaccel pixfmts
|
|
int w, h; // image dimensions
|
|
int p_w, p_h; // define pixel aspect ratio (undefined: 0/0)
|
|
struct mp_colorspace color;
|
|
enum mp_chroma_location chroma_location;
|
|
// The image should be rotated clockwise (0-359 degrees).
|
|
int rotate;
|
|
enum mp_stereo3d_mode stereo_in; // image is encoded with this mode
|
|
enum mp_stereo3d_mode stereo_out; // should be displayed with this mode
|
|
};
|
|
|
|
/* 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 {
|
|
int w, h; // visible dimensions (redundant with params.w/h)
|
|
|
|
struct mp_image_params params;
|
|
|
|
// fields redundant to params.imgfmt, for convenience or compatibility
|
|
struct mp_imgfmt_desc fmt;
|
|
enum mp_imgfmt imgfmt;
|
|
int num_planes;
|
|
|
|
uint8_t *planes[MP_MAX_PLANES];
|
|
int stride[MP_MAX_PLANES];
|
|
|
|
int pict_type; // 0->unknown, 1->I, 2->P, 3->B
|
|
int fields;
|
|
|
|
/* only inside filter chain */
|
|
double pts;
|
|
/* only after decoder */
|
|
double dts, pkt_duration;
|
|
/* for private use */
|
|
void* priv;
|
|
|
|
// Reference-counted data references.
|
|
// These do not necessarily map directly to planes[]. They can have
|
|
// different order or count. There shouldn't be more buffers than planes.
|
|
// If bufs[n] is NULL, bufs[n+1] must also be NULL.
|
|
// All mp_* functions manage this automatically; do not mess with it.
|
|
// (See also AVFrame.buf.)
|
|
struct AVBufferRef *bufs[MP_MAX_PLANES];
|
|
// Points to AVHWFramesContext* (same as AVFrame.hw_frames_ctx)
|
|
struct AVBufferRef *hwctx;
|
|
} mp_image_t;
|
|
|
|
int mp_chroma_div_up(int size, int shift);
|
|
|
|
struct mp_image *mp_image_alloc(int fmt, int w, int h);
|
|
void mp_image_copy(struct mp_image *dmpi, struct mp_image *mpi);
|
|
void mp_image_copy_gpu(struct mp_image *dst, struct mp_image *src);
|
|
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);
|
|
bool 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);
|
|
int mp_image_plane_w(struct mp_image *mpi, int plane);
|
|
int mp_image_plane_h(struct mp_image *mpi, int plane);
|
|
|
|
void mp_image_setfmt(mp_image_t* mpi, int out_fmt);
|
|
void mp_image_steal_data(struct mp_image *dst, struct mp_image *src);
|
|
|
|
struct mp_image *mp_image_new_dummy_ref(struct mp_image *img);
|
|
struct mp_image *mp_image_new_custom_ref(struct mp_image *img, void *arg,
|
|
void (*free)(void *arg));
|
|
|
|
void mp_image_params_guess_csp(struct mp_image_params *params);
|
|
|
|
char *mp_image_params_to_str_buf(char *b, size_t bs,
|
|
const struct mp_image_params *p);
|
|
#define mp_image_params_to_str(p) mp_image_params_to_str_buf((char[99]){0}, 99, p)
|
|
|
|
bool mp_image_params_valid(const struct mp_image_params *p);
|
|
bool mp_image_params_equal(const struct mp_image_params *p1,
|
|
const struct mp_image_params *p2);
|
|
|
|
void mp_image_params_get_dsize(const struct mp_image_params *p,
|
|
int *d_w, int *d_h);
|
|
void mp_image_params_set_dsize(struct mp_image_params *p, int d_w, int d_h);
|
|
|
|
void mp_image_set_params(struct mp_image *image,
|
|
const struct mp_image_params *params);
|
|
|
|
void mp_image_set_attributes(struct mp_image *image,
|
|
const struct mp_image_params *params);
|
|
|
|
struct AVFrame;
|
|
struct mp_image *mp_image_from_av_frame(struct AVFrame *av_frame);
|
|
struct AVFrame *mp_image_to_av_frame(struct mp_image *img);
|
|
struct AVFrame *mp_image_to_av_frame_and_unref(struct mp_image *img);
|
|
|
|
void memcpy_pic(void *dst, const void *src, int bytesPerLine, int height,
|
|
int dstStride, int srcStride);
|
|
void memset_pic(void *dst, int fill, int bytesPerLine, int height, int stride);
|
|
void memset16_pic(void *dst, int fill, int unitsPerLine, int height, int stride);
|
|
|
|
void mp_check_gpu_memcpy(struct mp_log *log, bool *once);
|
|
|
|
#endif /* MPLAYER_MP_IMAGE_H */
|