From: ashk43712 <ashk43...@gmail.com>
Compiled Netflix's vmaf repo needs to be present inside libavfilter directory
for it to run successfully.
---
libavfilter/Makefile | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/vf_vmaf.c | 319 +++++++++++++++++++++++++++++++++++++++++++++++
libavfilter/vmaf.h | 33 +++++
4 files changed, 354 insertions(+)
create mode 100644 libavfilter/vf_vmaf.c
create mode 100644 libavfilter/vmaf.h
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 0ba1c74..f456ea5 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -305,6 +305,7 @@ OBJS-$(CONFIG_VFLIP_FILTER) += vf_vflip.o
OBJS-$(CONFIG_VIDSTABDETECT_FILTER) += vidstabutils.o
vf_vidstabdetect.o
OBJS-$(CONFIG_VIDSTABTRANSFORM_FILTER) += vidstabutils.o
vf_vidstabtransform.o
OBJS-$(CONFIG_VIGNETTE_FILTER) += vf_vignette.o
+OBJS-$(CONFIG_VMAF_FILTER) += vf_vmaf.o dualinput.o
framesync.o
OBJS-$(CONFIG_VSTACK_FILTER) += vf_stack.o framesync.o
OBJS-$(CONFIG_W3FDIF_FILTER) += vf_w3fdif.o
OBJS-$(CONFIG_WAVEFORM_FILTER) += vf_waveform.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 15a74c4..6fe6b86 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -320,6 +320,7 @@ void avfilter_register_all(void)
REGISTER_FILTER(VIDSTABDETECT, vidstabdetect, vf);
REGISTER_FILTER(VIDSTABTRANSFORM, vidstabtransform, vf);
REGISTER_FILTER(VIGNETTE, vignette, vf);
+ REGISTER_FILTER(VMAF, vmaf, vf);
REGISTER_FILTER(VSTACK, vstack, vf);
REGISTER_FILTER(W3FDIF, w3fdif, vf);
REGISTER_FILTER(WAVEFORM, waveform, vf);
diff --git a/libavfilter/vf_vmaf.c b/libavfilter/vf_vmaf.c
new file mode 100644
index 0000000..a62aad1
--- /dev/null
+++ b/libavfilter/vf_vmaf.c
@@ -0,0 +1,319 @@
+/*
+ * Copyright (c) 2017 Ashish Singh <ashk43...@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Caculate the VMAF between two input videos.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <errno.h>
+#include "libavutil/avstring.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+#include "avfilter.h"
+#include "dualinput.h"
+#include "drawutils.h"
+#include "formats.h"
+#include "internal.h"
+#include "vmaf.h"
+#include "video.h"
+
+
+typedef struct VMAFContext {
+ const AVClass *class;
+ FFDualInputContext dinput;
+ double vmaf_sum;
+ uint64_t nb_frames;
+ FILE *stats_file;
+ char *stats_file_str;
+ char vmaf_dir[501];
+ int stats_version;
+ int stats_header_written;
+ int stats_add_max;
+ int is_rgb;
+ uint8_t rgba_map[4];
+ char comps[4];
+ int nb_components;
+ int planewidth[4];
+ int planeheight[4];
+ double planeweight[4];
+ VMAFDSPContext dsp;
+} VMAFContext;
+
+#define OFFSET(x) offsetof(VMAFContext, x)
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+
+static const AVOption vmaf_options[] = {
+ {"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 }
+};
+
+AVFILTER_DEFINE_CLASS(vmaf);
+
+static inline double get_vmaf(double vmaf_sum, uint64_t nb_frames)
+{
+ return vmaf_sum/nb_frames;
+}
+
+static void set_meta(AVDictionary **metadata, const char *key, float d)
+{
+ char value[128];
+ snprintf(value, sizeof(value), "%0.7f", d);
+ av_dict_set(metadata,key,value,0);
+}
+
+static AVFrame *do_vmaf(AVFilterContext *ctx, AVFrame *main,
+ const AVFrame *ref)
+{
+ VMAFContext *s = ctx->priv;
+
+ AVDictionary **metadata = avpriv_frame_get_metadatap(main);
+
+ int pipefd[2];
+ char buf[1001];
+ char str[20];
+ int w = main->width;
+ int h = main->height;
+
+ char *format = av_get_pix_fmt_name(main->format);
+
+ char *fifo1 = "t1.yuv";
+ char *fifo2 = "t2.yuv";
+
+ char width[5],height[5];
+ sprintf(width, "%d", main->width);
+ sprintf(height, "%d", main->height);
+
+
+ if(pipe(pipefd)==-1){
+ av_log(ctx, AV_LOG_ERROR, "Pipe creation failed.\n");
+ AVERROR(EINVAL);
+ }
+
+ int pid = fork();
+
+ if(pid == -1){
+ av_log(ctx, AV_LOG_ERROR, "Process creation failed.\n");
+ AVERROR(EINVAL);
+ }
+ else if ( pid == 0 ) {
+ close(pipefd[0]);
+ dup2(pipefd[1], 1);
+
+ int ret =
execlp(s->vmaf_dir,"python",format,width,height,fifo1,fifo2,"--out-fmt","text",(char*)NULL);
+ av_log(ctx, AV_LOG_ERROR, "No such file or directory.\n");
+ exit(0);
+ } else {
+
+ FILE *fd1,*fd2;
+
+ fd1 = fopen(fifo1, "wb");
+ uint8_t *ptr=main->data[0];
+ int y;
+ for (y=0; y<h; y++) {
+ fwrite(ptr,w,1,fd1);
+ ptr += main->linesize[0];
+ }
+ fclose(fd1);
+
+ fd2 = fopen(fifo2, "wb");
+ ptr=ref->data[0];
+ for (y=0; y<h; y++) {
+ fwrite(ptr,w,1,fd2);
+ ptr += ref->linesize[0];
+ }
+ fclose(fd2);
+
+ wait(NULL);
+ close(pipefd[1]);
+ read(pipefd[0], &buf, sizeof(buf));
+
+ close(pipefd[0]);
+
+ int len= strlen(buf);
+ char *ned = "VMAF_score";
+ char *find = strstr(buf,ned);
+ int i=0;
+ find += 11;
+ while(*find!=' '&&*find!='\n'){
+ str[i++]=*find;
+ ++find;
+ }
+ str[i]='\0';
+
+ }
+ double d;
+
+ sscanf(str, "%lf", &d);
+
+ set_meta(metadata, "lavfi.vmaf.score.",d);
+ av_log(ctx, AV_LOG_INFO, "vmaf score for frame %d is
%lf.\n",s->nb_frames,d);
+
+ s->vmaf_sum += d;
+
+ s->nb_frames++;
+
+ return main;
+}
+
+static av_cold int init(AVFilterContext *ctx)
+{
+ VMAFContext *s = ctx->priv;
+
+ s->dinput.process = do_vmaf;
+ return 0;
+}
+
+static int query_formats(AVFilterContext *ctx)
+{
+ static const enum AVPixelFormat pix_fmts[] = {
+ AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
+ AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUV420P10LE,
+ AV_PIX_FMT_NONE
+ };
+
+ AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
+ if (!fmts_list)
+ return AVERROR(ENOMEM);
+ return ff_set_common_formats(ctx, fmts_list);
+}
+
+static int config_input_ref(AVFilterLink *inlink)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+ AVFilterContext *ctx = inlink->dst;
+ VMAFContext *s = ctx->priv;
+ double average_max;
+ unsigned sum;
+ int j;
+
+ s->nb_components = desc->nb_components;
+ if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
+ ctx->inputs[0]->h != ctx->inputs[1]->h) {
+ av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must be
same.\n");
+ return AVERROR(EINVAL);
+ }
+ if (ctx->inputs[0]->format != ctx->inputs[1]->format) {
+ av_log(ctx, AV_LOG_ERROR, "Inputs must be of same pixel format.\n");
+ return AVERROR(EINVAL);
+ }
+
+
+ getcwd(s->vmaf_dir, sizeof(s->vmaf_dir));
+ int len = strlen(s->vmaf_dir);
+ char rel_path[30] = "/libavfilter/vmaf/run_vmaf";
+
+ for(j=0; j<strlen(rel_path); j++){
+ s->vmaf_dir[len++]=rel_path[j];
+ }
+ s->vmaf_dir[len] = '\0';
+
+ return 0;
+}
+
+static int config_output(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ VMAFContext *s = ctx->priv;
+ AVFilterLink *mainlink = ctx->inputs[0];
+ int ret;
+ outlink->w = mainlink->w;
+ outlink->h = mainlink->h;
+ outlink->time_base = mainlink->time_base;
+ outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
+ outlink->frame_rate = mainlink->frame_rate;
+ if ((ret = ff_dualinput_init(ctx, &s->dinput)) < 0)
+ return ret;
+
+ return 0;
+}
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
+{
+ VMAFContext *s = inlink->dst->priv;
+ return ff_dualinput_filter_frame(&s->dinput, inlink, inpicref);
+}
+
+static int request_frame(AVFilterLink *outlink)
+{
+ VMAFContext *s = outlink->src->priv;
+ return ff_dualinput_request_frame(&s->dinput, outlink);
+}
+
+static av_cold void uninit(AVFilterContext *ctx)
+{
+ VMAFContext *s = ctx->priv;
+
+ if (s->nb_frames > 0) {
+ av_log(ctx, AV_LOG_INFO, "VMAF average:%f\n",
+ get_vmaf(s->vmaf_sum, s->nb_frames));
+ }
+
+ ff_dualinput_uninit(&s->dinput);
+
+}
+
+static const AVFilterPad vmaf_inputs[] = {
+ {
+ .name = "main",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = filter_frame,
+ },{
+ .name = "reference",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = filter_frame,
+ .config_props = config_input_ref,
+ },
+ { NULL }
+};
+
+static const AVFilterPad vmaf_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = config_output,
+ .request_frame = request_frame,
+ },
+ { NULL }
+};
+
+AVFilter ff_vf_vmaf = {
+ .name = "vmaf",
+ .description = NULL_IF_CONFIG_SMALL("Calculate the VMAF between two
video streams."),
+ .init = init,
+ .uninit = uninit,
+ .query_formats = query_formats,
+ .priv_size = sizeof(VMAFContext),
+ .priv_class = &vmaf_class,
+ .inputs = vmaf_inputs,
+ .outputs = vmaf_outputs,
+};
diff --git a/libavfilter/vmaf.h b/libavfilter/vmaf.h
new file mode 100644
index 0000000..20ada43
--- /dev/null
+++ b/libavfilter/vmaf.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2017 Ashish Singh <ashk43...@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_VMAF_H
+#define AVFILTER_VMAF_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct VMAFDSPContext {
+ uint64_t (*sse_line)(const uint8_t *buf, const uint8_t *ref, int w);
+} VMAFDSPContext;
+
+void ff_vmaf_init_x86(VMAFDSPContext *dsp, int bpp);
+
+#endif /* AVFILTER_VMAF_H */
--
2.7.4
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