FFmpeg: libavcodec/error_resilience.c File Reference

FFmpeg

libavcodec

error_resilience.c File Reference

Error resilience / concealment. More...

#include <limits.h>
#include "libavutil/internal.h"
#include "avcodec.h"
#include "error_resilience.h"
#include "me_cmp.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "rectangle.h"
#include "thread.h"
#include "version.h"

Go to the source code of this file.

Macros

#define MV_FROZEN 3

#define MV_CHANGED 2

#define MV_UNCHANGED 1

Functions

static void set_mv_strides (ERContext *s, int *mv_step, int *stride)

static void put_dc (ERContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y)

Replace the current MB with a flat dc-only version.

static void filter181 (int16_t *data, int width, int height, int stride)

static void guess_dc (ERContext *s, int16_t *dc, int w, int h, int stride, int is_luma)

guess the dc of blocks which do not have an undamaged dc

static void h_block_filter (ERContext *s, uint8_t *dst, int w, int h, int stride, int is_luma)

simple horizontal deblocking filter used for error resilience

static void v_block_filter (ERContext *s, uint8_t *dst, int w, int h, int stride, int is_luma)

simple vertical deblocking filter used for error resilience

static void guess_mv (ERContext *s)

static int is_intra_more_likely (ERContext *s)

void ff_er_frame_start (ERContext *s)

static int er_supported (ERContext *s)

void ff_er_add_slice (ERContext *s, int startx, int starty, int endx, int endy, int status)

Add a slice.

void ff_er_frame_end (ERContext *s)

Detailed Description

Error resilience / concealment.

Definition in file error_resilience.c.

Macro Definition Documentation

#define MV_FROZEN 3

Referenced by guess_mv().

#define MV_CHANGED 2

Referenced by guess_mv().

#define MV_UNCHANGED 1

Referenced by guess_mv().

Function Documentation

static void set_mv_strides ( ERContext * s,

int * mv_step,

int * stride

)

static

Parameters: stride the number of MVs to get to the next row

mv_step the number of MVs per row or column in a macroblock

Definition at line 44 of file error_resilience.c.

Referenced by guess_mv(), h_block_filter(), and v_block_filter().

static void put_dc ( ERContext * s,

uint8_t * dest_y,

uint8_t * dest_cb,

uint8_t * dest_cr,

int mb_x,

int mb_y

)

static

Replace the current MB with a flat dc-only version.

Definition at line 59 of file error_resilience.c.

Referenced by ff_er_frame_end().

static void filter181 ( int16_t * data,

int width,

int height,

int stride

)

static

Definition at line 95 of file error_resilience.c.

Referenced by ff_er_frame_end().

static void guess_dc ( ERContext * s,

int16_t * dc,

int w,

int h,

int stride,

int is_luma

)

static

guess the dc of blocks which do not have an undamaged dc

Parameters: w width in 8 pixel blocks

h height in 8 pixel blocks

Definition at line 136 of file error_resilience.c.

Referenced by ff_er_frame_end().

static void h_block_filter ( ERContext * s,

uint8_t * dst,

int w,

int h,

int stride,

int is_luma

)

static

simple horizontal deblocking filter used for error resilience

Parameters: w width in 8 pixel blocks

h height in 8 pixel blocks

Definition at line 239 of file error_resilience.c.

Referenced by ff_er_frame_end().

static void v_block_filter ( ERContext * s,

uint8_t * dst,

int w,

int h,

int stride,

int is_luma

)

static

simple vertical deblocking filter used for error resilience

Parameters: w width in 8 pixel blocks

h height in 8 pixel blocks

Definition at line 307 of file error_resilience.c.

Referenced by ff_er_frame_end().

static void guess_mv ( ERContext * s )

static

Definition at line 373 of file error_resilience.c.

Referenced by ff_er_frame_end().

static int is_intra_more_likely ( ERContext * s )

static

Definition at line 683 of file error_resilience.c.

Referenced by ff_er_frame_end().

void ff_er_frame_start ( ERContext * s )

Definition at line 758 of file error_resilience.c.

Referenced by ff_mpeg_er_frame_start(), and h264_frame_start().

static int er_supported ( ERContext * s )

static

Definition at line 774 of file error_resilience.c.

Referenced by ff_er_add_slice(), and ff_er_frame_end().

void ff_er_add_slice ( ERContext * s,

int startx,

int starty,

int endx,

int endy,

int status

)

Add a slice.

Parameters: endx x component of the last macroblock, can be -1 for the last of the previous line

status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is assumed that no earlier end or error of the same type occurred

Definition at line 792 of file error_resilience.c.

Referenced by decode_chunks(), decode_slice(), er_add_slice(), ff_intrax8_decode_picture(), ff_mpeg4_decode_partitions(), rv10_decode_packet(), rv34_decode_slice(), slice_decode_thread(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

void ff_er_frame_end ( ERContext * s )

Definition at line 862 of file error_resilience.c.

Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_h264_field_end(), ff_rv34_decode_frame(), finish_frame(), rv10_decode_frame(), rv10_decode_packet(), slice_end(), and vc1_decode_frame().

Generated on Sun Mar 8 2015 02:35:19 for FFmpeg by doxygen 1.8.2