vf_framepack.c File Reference

Generate a frame packed video, by combining two views in a single surface. More...

#include <string.h>
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/rational.h"
#include "libavutil/stereo3d.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	FramepackContext

Macros
#define	LEFT   0
#define	RIGHT   1
#define	OFFSET(x)   offsetof(FramepackContext, x)
#define	V   AV_OPT_FLAG_VIDEO_PARAM

Functions
static int	query_formats (AVFilterContext *ctx)
static av_cold void	framepack_uninit (AVFilterContext *ctx)
static int	config_output (AVFilterLink *outlink)
static void	horizontal_frame_pack (AVFilterLink *outlink, AVFrame *out, int interleaved)
static void	vertical_frame_pack (AVFilterLink *outlink, AVFrame *out, int interleaved)
static av_always_inline void	spatial_frame_pack (AVFilterLink *outlink, AVFrame *dst)
static int	try_push_frame (AVFilterContext *ctx)
static int	filter_frame_left (AVFilterLink *inlink, AVFrame *frame)
static int	filter_frame_right (AVFilterLink *inlink, AVFrame *frame)
static int	request_frame (AVFilterLink *outlink)
	AVFILTER_DEFINE_CLASS (framepack)

Variables
static enum AVPixelFormat	formats_supported []
static const AVOption	framepack_options []
static const AVFilterPad	framepack_inputs []
static const AVFilterPad	framepack_outputs []
AVFilter	ff_vf_framepack

Detailed Description

Generate a frame packed video, by combining two views in a single surface.

Definition in file vf_framepack.c.

Macro Definition Documentation

#define LEFT   0

Definition at line 40 of file vf_framepack.c.

Referenced by config_output(), filter_frame_left(), framepack_uninit(), horizontal_frame_pack(), and try_push_frame().

#define RIGHT   1

Definition at line 41 of file vf_framepack.c.

Referenced by config_output(), filter_frame_right(), framepack_uninit(), and horizontal_frame_pack().

#define OFFSET

(

x

)

offsetof(FramepackContext, x)

Definition at line 364 of file vf_framepack.c.

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 365 of file vf_framepack.c.

Function Documentation

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 62 of file vf_framepack.c.

static av_cold void framepack_uninit ( AVFilterContext *  ctx )

static

Definition at line 71 of file vf_framepack.c.

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 80 of file vf_framepack.c.

static void horizontal_frame_pack ( AVFilterLink *  outlink, AVFrame *  out, int  interleaved  )

static

Definition at line 147 of file vf_framepack.c.

Referenced by spatial_frame_pack().

static void vertical_frame_pack ( AVFilterLink *  outlink, AVFrame *  out, int  interleaved  )

static

Definition at line 212 of file vf_framepack.c.

Referenced by spatial_frame_pack().

static av_always_inline void spatial_frame_pack ( AVFilterLink *  outlink, AVFrame *  dst  )

static

Definition at line 251 of file vf_framepack.c.

Referenced by try_push_frame().

static int try_push_frame ( AVFilterContext *  ctx )

static

Definition at line 305 of file vf_framepack.c.

Referenced by filter_frame_left(), and filter_frame_right().

static int filter_frame_left ( AVFilterLink *  inlink, AVFrame *  frame  )

static

Definition at line 274 of file vf_framepack.c.

static int filter_frame_right ( AVFilterLink *  inlink, AVFrame *  frame  )

static

Definition at line 281 of file vf_framepack.c.

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 288 of file vf_framepack.c.

AVFILTER_DEFINE_CLASS

(

framepack

)

Variable Documentation

enum AVPixelFormat formats_supported[]

static

Initial value:

= {
    AV_PIX_FMT_YUV420P,  AV_PIX_FMT_YUV422P,  AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_YUV410P,  AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVJ420P,
    AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
    AV_PIX_FMT_NONE
}

Definition at line 55 of file vf_framepack.c.

Referenced by query_formats().

const AVOption framepack_options[]

static

Initial value:

= {
    { "format", "Frame pack output format", OFFSET(format), AV_OPT_TYPE_INT,
        { .i64 = AV_STEREO3D_SIDEBYSIDE }, 0, INT_MAX, .flags = V, .unit = "format" },
    { "sbs", "Views are packed next to each other", 0, AV_OPT_TYPE_CONST,
        { .i64 = AV_STEREO3D_SIDEBYSIDE }, INT_MIN, INT_MAX, .flags = V, .unit = "format" },
    { "tab", "Views are packed on top of each other", 0, AV_OPT_TYPE_CONST,
        { .i64 = AV_STEREO3D_TOPBOTTOM }, INT_MIN, INT_MAX, .flags = V, .unit = "format" },
    { "frameseq", "Views are one after the other", 0, AV_OPT_TYPE_CONST,
        { .i64 = AV_STEREO3D_FRAMESEQUENCE }, INT_MIN, INT_MAX, .flags = V, .unit = "format" },
    { "lines", "Views are interleaved by lines", 0, AV_OPT_TYPE_CONST,
        { .i64 = AV_STEREO3D_LINES }, INT_MIN, INT_MAX, .flags = V, .unit = "format" },
    { "columns", "Views are interleaved by columns", 0, AV_OPT_TYPE_CONST,
        { .i64 = AV_STEREO3D_COLUMNS }, INT_MIN, INT_MAX, .flags = V, .unit = "format" },
    { NULL },
}

Definition at line 366 of file vf_framepack.c.

const AVFilterPad framepack_inputs[]

static

Initial value:

= {
    {
        .name         = "left",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame_left,
        .needs_fifo   = 1,
    },
    {
        .name         = "right",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame_right,
        .needs_fifo   = 1,
    },
    { NULL }
}

Definition at line 384 of file vf_framepack.c.

const AVFilterPad framepack_outputs[]

static

Initial value:

= {
    {
        .name          = "packed",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_output,
        .request_frame = request_frame,
    },
    { NULL }
}

Definition at line 400 of file vf_framepack.c.

AVFilter ff_vf_framepack

Initial value:

= {
    .name          = "framepack",
    .description   = NULL_IF_CONFIG_SMALL("Generate a frame packed stereoscopic video."),
    .priv_size     = sizeof(FramepackContext),
    .priv_class    = &framepack_class,
    .query_formats = query_formats,
    .inputs        = framepack_inputs,
    .outputs       = framepack_outputs,
    .uninit        = framepack_uninit,
}

Definition at line 410 of file vf_framepack.c.