vf_scale_npp.c File Reference

scale video filter More...

#include <nppi.h>
#include <stdio.h>
#include <string.h>
#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/eval.h"
#include "libavutil/hwcontext.h"
#include "libavutil/hwcontext_cuda.h"
#include "libavutil/internal.h"
#include "libavutil/mathematics.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	NPPScaleStageContext
struct	NPPScaleContext

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

Enumerations
enum	var_name {   VAR_CH, VAR_N, VAR_NB_IN_CHANNELS, VAR_NB_OUT_CHANNELS,   VAR_T, VAR_S, VAR_VARS_NB, VAR_VALUE1,   VAR_VALUE2, VAR_VARS_NB, VAR_TB, VAR_PTS,   VAR_START_PTS, VAR_PREV_PTS, VAR_PREV_SELECTED_PTS, VAR_T,   VAR_START_T, VAR_PREV_T, VAR_PREV_SELECTED_T, VAR_PICT_TYPE,   VAR_I, VAR_P, VAR_B, VAR_S,   VAR_SI, VAR_SP, VAR_BI, VAR_PICT_TYPE_I,   VAR_PICT_TYPE_P, VAR_PICT_TYPE_B, VAR_PICT_TYPE_S, VAR_PICT_TYPE_SI,   VAR_PICT_TYPE_SP, VAR_PICT_TYPE_BI, VAR_INTERLACE_TYPE, VAR_INTERLACE_TYPE_P,   VAR_INTERLACE_TYPE_T, VAR_INTERLACE_TYPE_B, VAR_CONSUMED_SAMPLES_N, VAR_SAMPLES_N,   VAR_SAMPLE_RATE, VAR_N, VAR_SELECTED_N, VAR_PREV_SELECTED_N,   VAR_KEY, VAR_POS, VAR_SCENE, VAR_CONCATDEC_SELECT,   VAR_VARS_NB, VAR_FRAME_RATE, VAR_INTERLACED, VAR_N,   VAR_NB_CONSUMED_SAMPLES, VAR_NB_SAMPLES, VAR_POS, VAR_PREV_INPTS,   VAR_PREV_INT, VAR_PREV_OUTPTS, VAR_PREV_OUTT, VAR_PTS,   VAR_SAMPLE_RATE, VAR_STARTPTS, VAR_STARTT, VAR_T,   VAR_TB, VAR_RTCTIME, VAR_RTCSTART, VAR_S,   VAR_SR, VAR_VARS_NB, VAR_AVTB, VAR_INTB,   VAR_SR, VAR_VARS_NB, VAR_W, VAR_H,   VAR_A, VAR_DAR, VAR_SAR, VAR_HSUB,   VAR_VSUB, VARS_NB, VAR_W, VAR_H,   VAR_CW, VAR_CH, VAR_HSUB, VAR_VSUB,   VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,   VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,   VAR_OH, VAR_A, VAR_SAR, VAR_DAR,   VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y,   VAR_N, VAR_POS, VAR_T, VAR_VARS_NB,   VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_IN_H,   VAR_IH, VAR_IN_W, VAR_IW, VAR_SAR,   VAR_X, VAR_Y, VAR_H, VAR_W,   VAR_T, VAR_MAX, VARS_NB, VAR_DAR,   VAR_HSUB, VAR_VSUB, VAR_LINE_H, VAR_LH,   VAR_MAIN_H, VAR_h, VAR_H, VAR_MAIN_W,   VAR_w, VAR_W, VAR_MAX_GLYPH_A, VAR_ASCENT,   VAR_MAX_GLYPH_D, VAR_DESCENT, VAR_MAX_GLYPH_H, VAR_MAX_GLYPH_W,   VAR_N, VAR_SAR, VAR_T, VAR_TEXT_H,   VAR_TH, VAR_TEXT_W, VAR_TW, VAR_X,   VAR_Y, VAR_PICT_TYPE, VAR_VARS_NB, VAR_N,   VAR_POS, VAR_R, VAR_T, VAR_NB,   VAR_N, VAR_PTS, VAR_R, VAR_T,   VAR_TB, VAR_NB, VAR_W, VAR_H,   VAR_VAL, VAR_MAXVAL, VAR_MINVAL, VAR_NEGVAL,   VAR_CLIPVAL, VAR_VARS_NB, VAR_MAIN_W, VAR_MW,   VAR_MAIN_H, VAR_MH, VAR_OVERLAY_W, VAR_OW,   VAR_OVERLAY_H, VAR_OH, VAR_HSUB, VAR_VSUB,   VAR_X, VAR_Y, VAR_N, VAR_POS,   VAR_T, VAR_VARS_NB, VAR_IN_W, VAR_IW,   VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW,   VAR_OUT_H, VAR_OH, VAR_X, VAR_Y,   VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB,   VAR_VSUB, VARS_NB, VAR_IN_W, VAR_IW,   VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW,   VAR_OUT_H, VAR_OH, VAR_HSUB, VAR_VSUB,   VAR_N, VAR_T, VAR_VARS_NB, VAR_IN_W,   VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,   VAR_OW, VAR_OUT_H, VAR_OH, VAR_A,   VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB,   VAR_OHSUB, VAR_OVSUB, VARS_NB, VAR_PI,   VAR_PHI, VAR_E, VAR_IN_W, VAR_IW,   VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW,   VAR_OUT_H, VAR_OH, VAR_A, VAR_DAR,   VAR_SAR, VARS_NB, VAR_W, VAR_H,   VAR_N, VAR_PTS, VAR_R, VAR_T,   VAR_TB, VAR_NB, VAR_IN_W, VAR_IW,   VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW,   VAR_OUT_H, VAR_OH, VAR_IN, VAR_ON,   VAR_DURATION, VAR_PDURATION, VAR_TIME, VAR_FRAME,   VAR_ZOOM, VAR_PZOOM, VAR_X, VAR_PX,   VAR_Y, VAR_PY, VAR_A, VAR_SAR,   VAR_DAR, VAR_HSUB, VAR_VSUB, VARS_NB,   VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,   VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,   VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB,   VAR_VSUB, VAR_OHSUB, VAR_OVSUB, VARS_NB,   VAR_X, VAR_Y, VAR_W, VAR_H,   VAR_TIME, VAR_SPEED, VAR_TEMPO, VAR_ORDER,   VAR_PATTERN, VAR_ROW, VAR_VARS_NB }
enum	ScaleStage { STAGE_DEINTERLEAVE, STAGE_RESIZE, STAGE_INTERLEAVE, STAGE_NB }

Functions
static int	nppscale_init (AVFilterContext *ctx)
static void	nppscale_uninit (AVFilterContext *ctx)
static int	nppscale_query_formats (AVFilterContext *ctx)
static int	init_stage (NPPScaleStageContext *stage, AVBufferRef *device_ctx)
static int	format_is_supported (enum AVPixelFormat fmt)
static enum AVPixelFormat	get_deinterleaved_format (enum AVPixelFormat fmt)
static int	init_processing_chain (AVFilterContext *ctx, int in_width, int in_height, int out_width, int out_height)
static int	nppscale_config_props (AVFilterLink *outlink)
static int	nppscale_deinterleave (AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
static int	nppscale_resize (AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
static int	nppscale_interleave (AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
static int	nppscale_scale (AVFilterContext *ctx, AVFrame *out, AVFrame *in)
static int	nppscale_filter_frame (AVFilterLink *link, AVFrame *in)

Variables
static enum AVPixelFormat	supported_formats []
static enum AVPixelFormat	deinterleaved_formats [][2]
static const char *const	var_names []
static int(*const	nppscale_process [])(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
static const AVOption	options []
static const AVClass	nppscale_class
static const AVFilterPad	nppscale_inputs []
static const AVFilterPad	nppscale_outputs []
AVFilter	ff_vf_scale_npp

Detailed Description

scale video filter

Definition in file vf_scale_npp.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(NPPScaleContext, x)

Definition at line 602 of file vf_scale_npp.c.

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 603 of file vf_scale_npp.c.

Enumeration Type Documentation

enum var_name

Enumerator
VAR_CH
VAR_N
VAR_NB_IN_CHANNELS
VAR_NB_OUT_CHANNELS
VAR_T
VAR_S
VAR_VARS_NB
VAR_VALUE1
VAR_VALUE2
VAR_VARS_NB
VAR_TB
VAR_PTS
VAR_START_PTS
VAR_PREV_PTS
VAR_PREV_SELECTED_PTS
VAR_T
VAR_START_T
VAR_PREV_T
VAR_PREV_SELECTED_T
VAR_PICT_TYPE
VAR_I
VAR_P
VAR_B
VAR_S
VAR_SI
VAR_SP
VAR_BI
VAR_PICT_TYPE_I
VAR_PICT_TYPE_P
VAR_PICT_TYPE_B
VAR_PICT_TYPE_S
VAR_PICT_TYPE_SI
VAR_PICT_TYPE_SP
VAR_PICT_TYPE_BI
VAR_INTERLACE_TYPE
VAR_INTERLACE_TYPE_P
VAR_INTERLACE_TYPE_T
VAR_INTERLACE_TYPE_B
VAR_CONSUMED_SAMPLES_N
VAR_SAMPLES_N
VAR_SAMPLE_RATE
VAR_N
VAR_SELECTED_N
VAR_PREV_SELECTED_N
VAR_KEY
VAR_POS
VAR_SCENE
VAR_CONCATDEC_SELECT
VAR_VARS_NB
VAR_FRAME_RATE
VAR_INTERLACED
VAR_N
VAR_NB_CONSUMED_SAMPLES
VAR_NB_SAMPLES
VAR_POS
VAR_PREV_INPTS
VAR_PREV_INT
VAR_PREV_OUTPTS
VAR_PREV_OUTT
VAR_PTS
VAR_SAMPLE_RATE
VAR_STARTPTS
VAR_STARTT
VAR_T
VAR_TB
VAR_RTCTIME
VAR_RTCSTART
VAR_S
VAR_SR
VAR_VARS_NB
VAR_AVTB
VAR_INTB
VAR_SR
VAR_VARS_NB
VAR_W
VAR_H
VAR_A
VAR_DAR
VAR_SAR
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_W
VAR_H
VAR_CW
VAR_CH
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_X
VAR_Y
VAR_N
VAR_POS
VAR_T
VAR_VARS_NB
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_IN_H
VAR_IH
VAR_IN_W
VAR_IW
VAR_SAR
VAR_X
VAR_Y
VAR_H
VAR_W
VAR_T
VAR_MAX
VARS_NB
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_LINE_H
VAR_LH
VAR_MAIN_H
VAR_h
VAR_H
VAR_MAIN_W
VAR_w
VAR_W
VAR_MAX_GLYPH_A
VAR_ASCENT
VAR_MAX_GLYPH_D
VAR_DESCENT
VAR_MAX_GLYPH_H
VAR_MAX_GLYPH_W
VAR_N
VAR_SAR
VAR_T
VAR_TEXT_H
VAR_TH
VAR_TEXT_W
VAR_TW
VAR_X
VAR_Y
VAR_PICT_TYPE
VAR_VARS_NB
VAR_N
VAR_POS
VAR_R
VAR_T
VAR_NB
VAR_N
VAR_PTS
VAR_R
VAR_T
VAR_TB
VAR_NB
VAR_W
VAR_H
VAR_VAL
VAR_MAXVAL
VAR_MINVAL
VAR_NEGVAL
VAR_CLIPVAL
VAR_VARS_NB
VAR_MAIN_W
VAR_MW
VAR_MAIN_H
VAR_MH
VAR_OVERLAY_W
VAR_OW
VAR_OVERLAY_H
VAR_OH
VAR_HSUB
VAR_VSUB
VAR_X
VAR_Y
VAR_N
VAR_POS
VAR_T
VAR_VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_X
VAR_Y
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_HSUB
VAR_VSUB
VAR_N
VAR_T
VAR_VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_OHSUB
VAR_OVSUB
VARS_NB
VAR_PI
VAR_PHI
VAR_E
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_DAR
VAR_SAR
VARS_NB
VAR_W
VAR_H
VAR_N
VAR_PTS
VAR_R
VAR_T
VAR_TB
VAR_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_IN
VAR_ON
VAR_DURATION
VAR_PDURATION
VAR_TIME
VAR_FRAME
VAR_ZOOM
VAR_PZOOM
VAR_X
VAR_PX
VAR_Y
VAR_PY
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_OHSUB
VAR_OVSUB
VARS_NB
VAR_X
VAR_Y
VAR_W
VAR_H
VAR_TIME
VAR_SPEED
VAR_TEMPO
VAR_ORDER
VAR_PATTERN
VAR_ROW
VAR_VARS_NB

Definition at line 66 of file vf_scale_npp.c.

enum ScaleStage

Enumerator
STAGE_DEINTERLEAVE
STAGE_RESIZE
STAGE_INTERLEAVE
STAGE_NB

Definition at line 79 of file vf_scale_npp.c.

Function Documentation

static int nppscale_init ( AVFilterContext *  ctx )

static

Definition at line 128 of file vf_scale_npp.c.

static void nppscale_uninit ( AVFilterContext *  ctx )

static

Definition at line 155 of file vf_scale_npp.c.

static int nppscale_query_formats ( AVFilterContext *  ctx )

static

Definition at line 167 of file vf_scale_npp.c.

static int init_stage ( NPPScaleStageContext *  stage, AVBufferRef *  device_ctx  )

static

Definition at line 179 of file vf_scale_npp.c.

Referenced by init_processing_chain().

static int format_is_supported ( enum AVPixelFormat  fmt )

static

Definition at line 231 of file vf_scale_npp.c.

Referenced by init_processing_chain().

static enum AVPixelFormat get_deinterleaved_format ( enum AVPixelFormat  fmt )

static

Definition at line 241 of file vf_scale_npp.c.

Referenced by init_processing_chain().

static int init_processing_chain ( AVFilterContext *  ctx, int  in_width, int  in_height, int  out_width, int  out_height  )

static

Definition at line 255 of file vf_scale_npp.c.

Referenced by nppscale_config_props().

static int nppscale_config_props ( AVFilterLink *  outlink )

static

Definition at line 348 of file vf_scale_npp.c.

static int nppscale_deinterleave ( AVFilterContext *  ctx, NPPScaleStageContext *  stage, AVFrame *  out, AVFrame *  in  )

static

Definition at line 437 of file vf_scale_npp.c.

static int nppscale_resize ( AVFilterContext *  ctx, NPPScaleStageContext *  stage, AVFrame *  out, AVFrame *  in  )

static

Definition at line 461 of file vf_scale_npp.c.

static int nppscale_interleave ( AVFilterContext *  ctx, NPPScaleStageContext *  stage, AVFrame *  out, AVFrame *  in  )

static

Definition at line 489 of file vf_scale_npp.c.

static int nppscale_scale ( AVFilterContext *  ctx, AVFrame *  out, AVFrame *  in  )

static

Definition at line 521 of file vf_scale_npp.c.

Referenced by nppscale_filter_frame().

static int nppscale_filter_frame ( AVFilterLink *  link, AVFrame *  in  )

static

Definition at line 555 of file vf_scale_npp.c.

Variable Documentation

enum AVPixelFormat supported_formats[]

static

Initial value:

= {
    AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_NV12,
    AV_PIX_FMT_YUV444P,
}

Definition at line 43 of file vf_scale_npp.c.

Referenced by format_is_supported().

enum AVPixelFormat deinterleaved_formats[][2]

static

Initial value:

= {
    { AV_PIX_FMT_NV12, AV_PIX_FMT_YUV420P },
}

Definition at line 49 of file vf_scale_npp.c.

Referenced by get_deinterleaved_format().

const char* const var_names[]

static

Initial value:

= {
    "PI",
    "PHI",
    "E",
    "in_w",   "iw",
    "in_h",   "ih",
    "out_w",  "ow",
    "out_h",  "oh",
    "a", "dar",
    "sar",
    NULL
}

Definition at line 53 of file vf_scale_npp.c.

Referenced by nppscale_config_props().

int(*const nppscale_process[])(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)

static

Initial value:

= {
    [STAGE_DEINTERLEAVE] = nppscale_deinterleave,
    [STAGE_RESIZE]       = nppscale_resize,
    [STAGE_INTERLEAVE]   = nppscale_interleave,
}

Definition at line 514 of file vf_scale_npp.c.

Referenced by nppscale_scale().

const AVOption options[]

static

Initial value:

= {
    { "w",      "Output video width",  OFFSET(w_expr),     AV_OPT_TYPE_STRING, { .str = "iw"   }, .flags = FLAGS },
    { "h",      "Output video height", OFFSET(h_expr),     AV_OPT_TYPE_STRING, { .str = "ih"   }, .flags = FLAGS },
    { "format", "Output pixel format", OFFSET(format_str), AV_OPT_TYPE_STRING, { .str = "same" }, .flags = FLAGS },

    { "interp_algo", "Interpolation algorithm used for resizing", OFFSET(interp_algo), AV_OPT_TYPE_INT, { .i64 = NPPI_INTER_CUBIC }, 0, INT_MAX, FLAGS, "interp_algo" },
        { "nn",                 "nearest neighbour",                 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_NN                 }, 0, 0, FLAGS, "interp_algo" },
        { "linear",             "linear",                            0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LINEAR             }, 0, 0, FLAGS, "interp_algo" },
        { "cubic",              "cubic",                             0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC              }, 0, 0, FLAGS, "interp_algo" },
        { "cubic2p_bspline",    "2-parameter cubic (B=1, C=0)",      0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_BSPLINE    }, 0, 0, FLAGS, "interp_algo" },
        { "cubic2p_catmullrom", "2-parameter cubic (B=0, C=1/2)",    0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_CATMULLROM }, 0, 0, FLAGS, "interp_algo" },
        { "cubic2p_b05c03",     "2-parameter cubic (B=1/2, C=3/10)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_B05C03     }, 0, 0, FLAGS, "interp_algo" },
        { "super",              "supersampling",                     0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_SUPER              }, 0, 0, FLAGS, "interp_algo" },
        { "lanczos",            "Lanczos",                           0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LANCZOS            }, 0, 0, FLAGS, "interp_algo" },
    { NULL },
}

Definition at line 604 of file vf_scale_npp.c.

const AVClass nppscale_class

static

Initial value:

= {
    .class_name = "nppscale",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 621 of file vf_scale_npp.c.

const AVFilterPad nppscale_inputs[]

static

Initial value:

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

Definition at line 628 of file vf_scale_npp.c.

const AVFilterPad nppscale_outputs[]

static

Initial value:

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

Definition at line 637 of file vf_scale_npp.c.

AVFilter ff_vf_scale_npp

Initial value:

= {
    .name      = "scale_npp",
    .description = NULL_IF_CONFIG_SMALL("NVIDIA Performance Primitives video "
                                        "scaling and format conversion"),

    .init          = nppscale_init,
    .uninit        = nppscale_uninit,
    .query_formats = nppscale_query_formats,

    .priv_size = sizeof(NPPScaleContext),
    .priv_class = &nppscale_class,

    .inputs    = nppscale_inputs,
    .outputs   = nppscale_outputs,
}

Definition at line 646 of file vf_scale_npp.c.