FFmpeg
Data Structures | Macros | Functions | Variables
vf_scale_vaapi.c File Reference
#include <string.h>
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "scale_eval.h"
#include "video.h"
#include "vaapi_vpp.h"

Go to the source code of this file.

Data Structures

struct  ScaleVAAPIContext
 

Macros

#define D(name)   case VA_FILTER_SCALING_ ## name: return #name
 
#define STRING_OPTION(var_name, func_name, default_value)
 
#define OFFSET(x)   offsetof(ScaleVAAPIContext, x)
 
#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
 

Functions

static const char * scale_vaapi_mode_name (int mode)
 
static int scale_vaapi_config_output (AVFilterLink *outlink)
 
static int scale_vaapi_filter_frame (AVFilterLink *inlink, AVFrame *input_frame)
 
static av_cold int scale_vaapi_init (AVFilterContext *avctx)
 
 AVFILTER_DEFINE_CLASS (scale_vaapi)
 

Variables

static const AVOption scale_vaapi_options []
 
static const AVFilterPad scale_vaapi_inputs []
 
static const AVFilterPad scale_vaapi_outputs []
 
const AVFilter ff_vf_scale_vaapi
 

Macro Definition Documentation

◆ D

#define D (   name)    case VA_FILTER_SCALING_ ## name: return #name

◆ STRING_OPTION

#define STRING_OPTION (   var_name,
  func_name,
  default_value 
)
Value:
do { \
if (ctx->var_name ## _string) { \
int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \
if (var < 0) { \
av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
return AVERROR(EINVAL); \
} \
ctx->var_name = var; \
} else { \
ctx->var_name = default_value; \
} \
} while (0)

◆ OFFSET

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

Definition at line 205 of file vf_scale_vaapi.c.

◆ FLAGS

Definition at line 206 of file vf_scale_vaapi.c.

Function Documentation

◆ scale_vaapi_mode_name()

static const char* scale_vaapi_mode_name ( int  mode)
static

Definition at line 56 of file vf_scale_vaapi.c.

Referenced by scale_vaapi_filter_frame().

◆ scale_vaapi_config_output()

static int scale_vaapi_config_output ( AVFilterLink outlink)
static

Definition at line 71 of file vf_scale_vaapi.c.

◆ scale_vaapi_filter_frame()

static int scale_vaapi_filter_frame ( AVFilterLink inlink,
AVFrame input_frame 
)
static

Definition at line 100 of file vf_scale_vaapi.c.

◆ scale_vaapi_init()

static av_cold int scale_vaapi_init ( AVFilterContext avctx)
static

Definition at line 165 of file vf_scale_vaapi.c.

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( scale_vaapi  )

Variable Documentation

◆ scale_vaapi_options

const AVOption scale_vaapi_options[]
static

Definition at line 207 of file vf_scale_vaapi.c.

◆ scale_vaapi_inputs

const AVFilterPad scale_vaapi_inputs[]
static
Initial value:
= {
{
.name = "default",
.filter_frame = &scale_vaapi_filter_frame,
.config_props = &ff_vaapi_vpp_config_input,
},
}

Definition at line 265 of file vf_scale_vaapi.c.

◆ scale_vaapi_outputs

const AVFilterPad scale_vaapi_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = &scale_vaapi_config_output,
},
}

Definition at line 274 of file vf_scale_vaapi.c.

◆ ff_vf_scale_vaapi

const AVFilter ff_vf_scale_vaapi
Initial value:
= {
.name = "scale_vaapi",
.description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."),
.priv_size = sizeof(ScaleVAAPIContext),
.priv_class = &scale_vaapi_class,
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 282 of file vf_scale_vaapi.c.

init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
FF_FILTER_FLAG_HWFRAME_AWARE
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
Definition: internal.h:371
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:168
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
var_name
var_name
Definition: noise_bsf.c:47
ctx
AVFormatContext * ctx
Definition: movenc.c:48
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
scale_vaapi_inputs
static const AVFilterPad scale_vaapi_inputs[]
Definition: vf_scale_vaapi.c:265
ff_vaapi_vpp_config_input
int ff_vaapi_vpp_config_input(AVFilterLink *inlink)
Definition: vaapi_vpp.c:70
ff_vaapi_vpp_ctx_uninit
void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx)
Definition: vaapi_vpp.c:680
ff_vaapi_vpp_query_formats
int ff_vaapi_vpp_query_formats(AVFilterContext *avctx)
Definition: vaapi_vpp.c:27
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
scale_vaapi_config_output
static int scale_vaapi_config_output(AVFilterLink *outlink)
Definition: vf_scale_vaapi.c:71
scale_vaapi_filter_frame
static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
Definition: vf_scale_vaapi.c:100
scale_vaapi_init
static av_cold int scale_vaapi_init(AVFilterContext *avctx)
Definition: vf_scale_vaapi.c:165
scale_vaapi_outputs
static const AVFilterPad scale_vaapi_outputs[]
Definition: vf_scale_vaapi.c:274
ScaleVAAPIContext
Definition: vf_scale_vaapi.c:31
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
uninit
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:282