FFmpeg  4.0
Data Structures | Macros | Functions | Variables
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

◆ LEFT

#define LEFT   0

◆ RIGHT

#define RIGHT   1

◆ OFFSET

#define OFFSET (   x)    offsetof(FramepackContext, x)

Definition at line 366 of file vf_framepack.c.

◆ V

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 367 of file vf_framepack.c.

Function Documentation

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 62 of file vf_framepack.c.

◆ framepack_uninit()

static av_cold void framepack_uninit ( AVFilterContext ctx)
static

Definition at line 71 of file vf_framepack.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 80 of file vf_framepack.c.

◆ horizontal_frame_pack()

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().

◆ vertical_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().

◆ 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().

◆ 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(), filter_frame_right(), and spatial_frame_pack().

◆ filter_frame_left()

static int filter_frame_left ( AVFilterLink inlink,
AVFrame frame 
)
static

Definition at line 274 of file vf_framepack.c.

◆ filter_frame_right()

static int filter_frame_right ( AVFilterLink inlink,
AVFrame frame 
)
static

Definition at line 281 of file vf_framepack.c.

◆ request_frame()

static int request_frame ( AVFilterLink outlink)
static

Definition at line 288 of file vf_framepack.c.

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( framepack  )

Variable Documentation

◆ formats_supported

enum AVPixelFormat formats_supported[]
static
Initial value:
= {
}
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:97
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:96
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76

Definition at line 55 of file vf_framepack.c.

Referenced by query_formats().

◆ framepack_options

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 },
}
#define NULL
Definition: coverity.c:32
static const char * format[]
Definition: af_aiir.c:311
Views are next to each other.
Definition: stereo3d.h:67
#define OFFSET(x)
Definition: vf_framepack.c:366
#define V
Definition: vf_framepack.c:367
Views are packed per line, as if interlaced.
Definition: stereo3d.h:129
Views are alternated temporally.
Definition: stereo3d.h:92
Views are on top of each other.
Definition: stereo3d.h:79
Views are packed per column.
Definition: stereo3d.h:141

Definition at line 368 of file vf_framepack.c.

◆ framepack_inputs

const AVFilterPad framepack_inputs[]
static
Initial value:
= {
{
.name = "left",
.filter_frame = filter_frame_left,
.needs_fifo = 1,
},
{
.name = "right",
.filter_frame = filter_frame_right,
.needs_fifo = 1,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int filter_frame_right(AVFilterLink *inlink, AVFrame *frame)
Definition: vf_framepack.c:281
static int filter_frame_left(AVFilterLink *inlink, AVFrame *frame)
Definition: vf_framepack.c:274

Definition at line 386 of file vf_framepack.c.

◆ framepack_outputs

const AVFilterPad framepack_outputs[]
static
Initial value:
= {
{
.name = "packed",
.config_props = config_output,
.request_frame = request_frame,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int request_frame(AVFilterLink *outlink)
Definition: vf_framepack.c:288
static int config_output(AVFilterLink *outlink)
Definition: vf_framepack.c:80

Definition at line 402 of file vf_framepack.c.

◆ ff_vf_framepack

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,
}
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:279
static int query_formats(AVFilterContext *ctx)
Definition: vf_framepack.c:62
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
static const AVFilterPad framepack_inputs[]
Definition: vf_framepack.c:386
static av_cold void framepack_uninit(AVFilterContext *ctx)
Definition: vf_framepack.c:71
static const AVFilterPad framepack_outputs[]
Definition: vf_framepack.c:402

Definition at line 412 of file vf_framepack.c.