vf_psnr.c File Reference
Calculate the PSNR between two input videos. More...
#include "libavutil/avstring.h"#include "libavutil/file_open.h"#include "libavutil/mem.h"#include "libavutil/opt.h"#include "libavutil/pixdesc.h"#include "avfilter.h"#include "drawutils.h"#include "filters.h"#include "framesync.h"#include "psnr.h"Go to the source code of this file.
Data Structures | |
| struct | PSNRContext |
| struct | ThreadData |
| Used for passing data between threads. More... | |
Macros | |
| #define | OFFSET(x) |
| #define | FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| #define | PF_NOALPHA(suf) |
| #define | PF_ALPHA(suf) |
| #define | PF(suf) |
Functions | |
| FRAMESYNC_DEFINE_CLASS (psnr, PSNRContext, fs) | |
| static unsigned | pow_2 (unsigned base) |
| static double | get_psnr (double mse, uint64_t nb_frames, int max) |
| static int | compute_images_mse (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| static void | set_meta (AVDictionary **metadata, const char *key, char comp, float d) |
| static int | do_psnr (FFFrameSync *fs) |
| static av_cold int | init (AVFilterContext *ctx) |
| static int | config_input_ref (AVFilterLink *inlink) |
| static int | config_output (AVFilterLink *outlink) |
| static int | activate (AVFilterContext *ctx) |
| static av_cold void | uninit (AVFilterContext *ctx) |
Variables | |
| static const AVOption | psnr_options [] |
| static enum AVPixelFormat | pix_fmts [] |
| static const AVFilterPad | psnr_inputs [] |
| static const AVFilterPad | psnr_outputs [] |
| const FFFilter | ff_vf_psnr |
Detailed Description
Calculate the PSNR between two input videos.
Definition in file vf_psnr.c.
Macro Definition Documentation
◆ OFFSET
| #define OFFSET | ( | x | ) |
Value:
offsetof(PSNRContext, x)
Definition vf_psnr.c:39
◆ FLAGS
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
◆ PF_NOALPHA
| #define PF_NOALPHA | ( | suf | ) |
Value:
AV_PIX_FMT_YUV420##suf, AV_PIX_FMT_YUV422##suf, AV_PIX_FMT_YUV444##suf
◆ PF_ALPHA
| #define PF_ALPHA | ( | suf | ) |
Value:
AV_PIX_FMT_YUVA420##suf, AV_PIX_FMT_YUVA422##suf, AV_PIX_FMT_YUVA444##suf
◆ PF
| #define PF | ( | suf | ) |
Value:
Function Documentation
◆ FRAMESYNC_DEFINE_CLASS()
| FRAMESYNC_DEFINE_CLASS | ( | psnr | , |
| PSNRContext | , | ||
| fs | ) |
◆ pow_2()
|
inlinestatic |
Definition at line 75 of file vf_psnr.c.
Referenced by get_psnr().
◆ get_psnr()
◆ compute_images_mse()
|
static |
◆ set_meta()
|
static |
◆ do_psnr()
|
static |
◆ init()
|
static |
◆ config_input_ref()
|
static |
◆ config_output()
|
static |
◆ activate()
|
static |
◆ uninit()
|
static |
Variable Documentation
◆ psnr_options
|
static |
Initial value:
= {
{"stats_file", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
{"f", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
{"stats_version", "Set the format version for the stats file.", OFFSET(stats_version), AV_OPT_TYPE_INT, {.i64=1}, 1, 2, FLAGS },
{"output_max", "Add raw stats (max values) to the output log.", OFFSET(stats_add_max), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS},
{ NULL }
}
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
Definition opt.h:275
◆ pix_fmts
|
static |
Initial value:
= {
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
#define PF_NOALPHA(suf)
#define PF_ALPHA(suf)
#define PF(suf)
}
#define P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition pixfmt.h:107
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition pixfmt.h:79
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition pixfmt.h:80
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition pixfmt.h:283
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition pixfmt.h:86
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition pixfmt.h:87
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition pixfmt.h:85
#define PF(suf)
◆ psnr_inputs
|
static |
Initial value:
= {
{
.name = "main",
.type = AVMEDIA_TYPE_VIDEO,
},{
.name = "reference",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input_ref,
},
}
◆ psnr_outputs
|
static |
Initial value:
◆ ff_vf_psnr
| const FFFilter ff_vf_psnr |
Initial value:
= {
.p.name = "psnr",
.p.description = NULL_IF_CONFIG_SMALL("Calculate the PSNR between two video streams."),
.p.priv_class = &psnr_class,
.p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
.preinit = psnr_framesync_preinit,
.init = init,
.uninit = uninit,
.activate = activate,
.priv_size = sizeof(PSNRContext),
}
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition avfilter.h:166
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition avfilter.h:204
#define AVFILTER_FLAG_METADATA_ONLY
The filter is a "metadata" filter - it does not modify the frame data in any way.
Definition avfilter.h:182
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition internal.h:88
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