mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 09:52:17 +00:00
73ea6db0ba
These fields are only ever set by the encoder for the current picture and for no other picture. So only one set of these values needs to exist, so move them to MpegEncContext. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
/*
|
|
* Mpeg video formats-related defines and utility functions
|
|
*
|
|
* 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 AVCODEC_MPEGPICTURE_H
|
|
#define AVCODEC_MPEGPICTURE_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "libavutil/frame.h"
|
|
|
|
#include "avcodec.h"
|
|
#include "motion_est.h"
|
|
#include "threadframe.h"
|
|
|
|
#define MPEGVIDEO_MAX_PLANES 4
|
|
#define MAX_PICTURE_COUNT 36
|
|
#define EDGE_WIDTH 16
|
|
|
|
typedef struct ScratchpadContext {
|
|
uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data
|
|
uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
|
|
uint8_t *obmc_scratchpad;
|
|
uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
|
|
} ScratchpadContext;
|
|
|
|
/**
|
|
* Picture.
|
|
*/
|
|
typedef struct Picture {
|
|
struct AVFrame *f;
|
|
ThreadFrame tf;
|
|
|
|
AVBufferRef *qscale_table_buf;
|
|
int8_t *qscale_table;
|
|
|
|
AVBufferRef *motion_val_buf[2];
|
|
int16_t (*motion_val[2])[2];
|
|
|
|
AVBufferRef *mb_type_buf;
|
|
uint32_t *mb_type; ///< types and macros are defined in mpegutils.h
|
|
|
|
AVBufferRef *mbskip_table_buf;
|
|
uint8_t *mbskip_table;
|
|
|
|
AVBufferRef *ref_index_buf[2];
|
|
int8_t *ref_index[2];
|
|
|
|
int alloc_mb_width; ///< mb_width used to allocate tables
|
|
int alloc_mb_height; ///< mb_height used to allocate tables
|
|
int alloc_mb_stride; ///< mb_stride used to allocate tables
|
|
|
|
AVBufferRef *hwaccel_priv_buf;
|
|
void *hwaccel_picture_private; ///< Hardware accelerator private data
|
|
|
|
int field_picture; ///< whether or not the picture was encoded in separate fields
|
|
|
|
int b_frame_score;
|
|
int needs_realloc; ///< Picture needs to be reallocated (eg due to a frame size change)
|
|
|
|
int reference;
|
|
int shared;
|
|
} Picture;
|
|
|
|
/**
|
|
* Allocate a Picture.
|
|
* The pixels are allocated/set by calling get_buffer() if shared = 0.
|
|
*/
|
|
int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me,
|
|
ScratchpadContext *sc, int shared, int encoding,
|
|
int chroma_x_shift, int chroma_y_shift, int out_format,
|
|
int mb_stride, int mb_width, int mb_height, int b8_stride,
|
|
ptrdiff_t *linesize, ptrdiff_t *uvlinesize);
|
|
|
|
int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me,
|
|
ScratchpadContext *sc, int linesize);
|
|
|
|
int ff_mpeg_ref_picture(AVCodecContext *avctx, Picture *dst, Picture *src);
|
|
void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *picture);
|
|
|
|
void ff_mpv_picture_free(AVCodecContext *avctx, Picture *pic);
|
|
int ff_update_picture_tables(Picture *dst, const Picture *src);
|
|
|
|
int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared);
|
|
|
|
#endif /* AVCODEC_MPEGPICTURE_H */
|