vf_transpose.c File Reference

transposition filter Based on MPlayer libmpcodecs/vf_rotate.c. More...

#include <stdio.h>
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	TransVtable
struct	TransContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	OFFSET(x)   offsetof(TransContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Enumerations
enum	PassthroughType { TRANSPOSE_PT_TYPE_NONE, TRANSPOSE_PT_TYPE_LANDSCAPE, TRANSPOSE_PT_TYPE_PORTRAIT }
enum	TransposeDir { TRANSPOSE_CCLOCK_FLIP, TRANSPOSE_CLOCK, TRANSPOSE_CCLOCK, TRANSPOSE_CLOCK_FLIP }

Functions
static int	query_formats (AVFilterContext *ctx)
static void	transpose_block_8_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
static void	transpose_8x8_8_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
static void	transpose_block_16_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
static void	transpose_8x8_16_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
static void	transpose_block_24_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
static void	transpose_8x8_24_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
static void	transpose_block_32_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
static void	transpose_8x8_32_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
static void	transpose_block_48_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
static void	transpose_8x8_48_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
static void	transpose_block_64_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
static void	transpose_8x8_64_c (uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
static int	config_props_output (AVFilterLink *outlink)
static AVFrame *	get_video_buffer (AVFilterLink *inlink, int w, int h)
static int	filter_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
	AVFILTER_DEFINE_CLASS (transpose)

Variables
static const AVOption	transpose_options []
static const AVFilterPad	avfilter_vf_transpose_inputs []
static const AVFilterPad	avfilter_vf_transpose_outputs []
AVFilter	ff_vf_transpose

Detailed Description

transposition filter Based on MPlayer libmpcodecs/vf_rotate.c.

Definition in file vf_transpose.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(TransContext, x)

Definition at line 372 of file vf_transpose.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 373 of file vf_transpose.c.

Enumeration Type Documentation

enum PassthroughType

Enumerator
TRANSPOSE_PT_TYPE_NONE
TRANSPOSE_PT_TYPE_LANDSCAPE
TRANSPOSE_PT_TYPE_PORTRAIT

Definition at line 42 of file vf_transpose.c.

enum TransposeDir

Enumerator
TRANSPOSE_CCLOCK_FLIP
TRANSPOSE_CLOCK
TRANSPOSE_CCLOCK
TRANSPOSE_CLOCK_FLIP

Definition at line 48 of file vf_transpose.c.

Function Documentation

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 75 of file vf_transpose.c.

static void transpose_block_8_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize, int  w, int  h  )

inlinestatic

Definition at line 94 of file vf_transpose.c.

Referenced by config_props_output(), and transpose_8x8_8_c().

static void transpose_8x8_8_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize  )

static

Definition at line 104 of file vf_transpose.c.

Referenced by config_props_output().

static void transpose_block_16_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize, int  w, int  h  )

inlinestatic

Definition at line 110 of file vf_transpose.c.

Referenced by config_props_output(), and transpose_8x8_16_c().

static void transpose_8x8_16_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize  )

static

Definition at line 120 of file vf_transpose.c.

Referenced by config_props_output().

static void transpose_block_24_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize, int  w, int  h  )

inlinestatic

Definition at line 126 of file vf_transpose.c.

Referenced by config_props_output(), and transpose_8x8_24_c().

static void transpose_8x8_24_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize  )

static

Definition at line 139 of file vf_transpose.c.

Referenced by config_props_output().

static void transpose_block_32_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize, int  w, int  h  )

inlinestatic

Definition at line 145 of file vf_transpose.c.

Referenced by config_props_output(), and transpose_8x8_32_c().

static void transpose_8x8_32_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize  )

static

Definition at line 156 of file vf_transpose.c.

Referenced by config_props_output().

static void transpose_block_48_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize, int  w, int  h  )

inlinestatic

Definition at line 162 of file vf_transpose.c.

Referenced by config_props_output(), and transpose_8x8_48_c().

static void transpose_8x8_48_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize  )

static

Definition at line 175 of file vf_transpose.c.

Referenced by config_props_output().

static void transpose_block_64_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize, int  w, int  h  )

inlinestatic

Definition at line 181 of file vf_transpose.c.

Referenced by config_props_output(), and transpose_8x8_64_c().

static void transpose_8x8_64_c ( uint8_t *  src, ptrdiff_t  src_linesize, uint8_t *  dst, ptrdiff_t  dst_linesize  )

static

Definition at line 191 of file vf_transpose.c.

Referenced by config_props_output().

static int config_props_output ( AVFilterLink *  outlink )

static

Definition at line 197 of file vf_transpose.c.

static AVFrame* get_video_buffer ( AVFilterLink *  inlink, int  w, int  h  )

static

Definition at line 266 of file vf_transpose.c.

static int filter_slice ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 279 of file vf_transpose.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  in  )

static

Definition at line 341 of file vf_transpose.c.

AVFILTER_DEFINE_CLASS

(

transpose

)

Variable Documentation

const AVOption transpose_options[]

static

Initial value:

= {
    { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 7, FLAGS, "dir" },
        { "cclock_flip", "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
        { "clock",       "rotate clockwise",                            0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK       }, .flags=FLAGS, .unit = "dir" },
        { "cclock",      "rotate counter-clockwise",                    0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK      }, .flags=FLAGS, .unit = "dir" },
        { "clock_flip",  "rotate clockwise with vertical flip",         0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP  }, .flags=FLAGS, .unit = "dir" },

    { "passthrough", "do not apply transposition if the input matches the specified geometry",
      OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE},  0, INT_MAX, FLAGS, "passthrough" },
        { "none",      "always apply transposition",   0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE},      INT_MIN, INT_MAX, FLAGS, "passthrough" },
        { "portrait",  "preserve portrait geometry",   0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT},  INT_MIN, INT_MAX, FLAGS, "passthrough" },
        { "landscape", "preserve landscape geometry",  0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },

    { NULL }
}

Definition at line 375 of file vf_transpose.c.

const AVFilterPad avfilter_vf_transpose_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .get_video_buffer = get_video_buffer,
        .filter_frame = filter_frame,
    },
    { NULL }
}

Definition at line 393 of file vf_transpose.c.

const AVFilterPad avfilter_vf_transpose_outputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .config_props = config_props_output,
        .type         = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
}

Definition at line 403 of file vf_transpose.c.

AVFilter ff_vf_transpose

Initial value:

= {
    .name          = "transpose",
    .description   = NULL_IF_CONFIG_SMALL("Transpose input video."),
    .priv_size     = sizeof(TransContext),
    .priv_class    = &transpose_class,
    .query_formats = query_formats,
    .inputs        = avfilter_vf_transpose_inputs,
    .outputs       = avfilter_vf_transpose_outputs,
    .flags         = AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 412 of file vf_transpose.c.