mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-18 03:19:31 +02:00
315c956cbd
It is unnecessary since the removal of non-thread-safe callbacks
in e0786a8eeb. Since then, the
AVCodecContext has only been used as logcontext.
Removing ff_thread_release_buffer() allowed to remove AVCodecContext*
parameters from several other functions (not only unref functions,
but also e.g. ff_h264_ref_picture() which calls ff_h264_unref_picture()
on error).
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
104 lines
3.3 KiB
C
104 lines
3.3 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
|
|
|
|
/// RefStruct reference for hardware accelerator private data
|
|
void *hwaccel_picture_private;
|
|
|
|
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;
|
|
|
|
int display_picture_number;
|
|
int coded_picture_number;
|
|
} Picture;
|
|
|
|
/**
|
|
* Allocate a Picture's accessories, but not the AVFrame's buffer itself.
|
|
*/
|
|
int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me,
|
|
ScratchpadContext *sc, int encoding, 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(Picture *dst, Picture *src);
|
|
void ff_mpeg_unref_picture(Picture *picture);
|
|
|
|
void ff_mpv_picture_free(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 */
|