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[79.124.17.100]) by mx.google.com with ESMTP id x137si6350187wmf.124.2017.04.28.05.37.40; Fri, 28 Apr 2017 05:37:40 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@gmail.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=gmail.com Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id BC163689822; Fri, 28 Apr 2017 15:37:34 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-wm0-f66.google.com (mail-wm0-f66.google.com [74.125.82.66]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 40C15680756 for ; Fri, 28 Apr 2017 15:37:28 +0300 (EEST) Received: by mail-wm0-f66.google.com with SMTP id u65so10651766wmu.3 for ; Fri, 28 Apr 2017 05:37:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references; bh=3GPjDzXia9HLopXwJOFA5y9kFz8rusNNPvG2AcPgmWA=; b=J+ovveagqzOvjgT5daTXykTkzpUM0rbJ2iUwePwEQ6bH+V2k0rdpSo9IL0mDRD2BIR AHLWSrenyeG78MzWn6STt9WmEcJaz27yj3qpfF8GvS6tfHpO41iaUASoifOKCaorZ6R4 atUcI5wLH8LtJetkKXTB/W/Muo0Ahq/qpEPF9+PC6atlMf6uzj/+fyTNCq6aQaIALxGJ 3q/j42w/dtM2A3hGWDhfMisJz98mqb/PsR1ejy/33NEqtsK1GE+Mqn1Wbhp4p7TJOVTc 6rFHNGqtPuGF00SpXZahKzQor+grJwzMgh2wxxWfSPCFL68F8NjCD7lHS40nNpJ46X/5 zg5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=3GPjDzXia9HLopXwJOFA5y9kFz8rusNNPvG2AcPgmWA=; b=Yw7w/NjPdo2ZvxAsvOX/svE3fYKFnKJ4OpZTaYgXiYohGyM/lICMm4D/9LLachDvV9 nTKIZojJSVzSh5Sxaz7LF9CNjpxBdSrZR2ECKbyK2cJTjZniBS5Lx6S9H7rf5x6y+kau U7bvXD5M47opzZuMUR+4A2hM19+amApkMDMePljb64d6yIgWt30L+oncqIrjtKhfWx/k lIF03/IisiupeDY8C2DAm36PK3ZDf63xlDBWPMMQqVzjK4JoJTvXOuYch6cuUF+7Z0Ky /whDOvnDK1ECp6e+XQfJIhh+YxYke2RLWHMDFLZumdhPz0bynU68MwQI0t/RXwszhWGt K8/Q== X-Gm-Message-State: AN3rC/6egcQ+dCptz6ZsnSjByXCopz2SIN59VdM7NtbaiL6t/4BfZ21d wQLBLnn5qEauK3SE X-Received: by 10.28.34.130 with SMTP id i124mr5493862wmi.111.1493382707788; Fri, 28 Apr 2017 05:31:47 -0700 (PDT) Received: from localhost.localdomain ([94.250.174.60]) by smtp.gmail.com with ESMTPSA id l45sm4410340wre.2.2017.04.28.05.31.46 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Apr 2017 05:31:46 -0700 (PDT) From: Paul B Mahol To: ffmpeg-devel@ffmpeg.org Date: Fri, 28 Apr 2017 14:31:24 +0200 Message-Id: <20170428123124.4057-2-onemda@gmail.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170428123124.4057-1-onemda@gmail.com> References: <20170428123124.4057-1-onemda@gmail.com> Subject: [FFmpeg-devel] [PATCH 2/2] avfilter: add video oscilloscope filter X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Signed-off-by: Paul B Mahol --- doc/filters.texi | 78 ++++++++++ libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/vf_datascope.c | 381 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 461 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index 2fe7ff7..d94f0aa 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -10224,6 +10224,84 @@ other parameters is 0. These parameters correspond to the parameters assigned to the libopencv function @code{cvSmooth}. +@section oscilloscope + +2D Video Oscilloscope. + +Useful to measure spatial impulse, step responses, chroma delays, etc. + +It accepts the following parameters: + +@table @option +@item x +Set scope center x position. + +@item y +Set scope center y position. + +@item s +Set scope size, relative to frame diagonal. + +@item t +Set scope tilt/rotation. + +@item o +Set trace opacity. + +@item tx +Set trace center x position. + +@item ty +Set trace center y position. + +@item tw +Set trace width, relative to width of frame. + +@item th +Set trace height, relative to height of frame. + +@item c +Set which components to trace. By default it traces first three components. + +@item g +Draw trace grid. By default is enabled. + +@item st +Draw some statistics. By default is enabled. + +@item sc +Draw scope. By default is enabled. +@end table + +@subsection Examples + +@itemize +@item +Inspect full first row of video frame. +@example +oscilloscope=x=0.5:y=0:s=1 +@end example + +@item +Inspect full last row of video frame. +@example +oscilloscope=x=0.5:y=1:s=1 +@end example + +@item +Inspect full 5th line of video frame of height 1080. +@example +oscilloscope=x=0.5:y=5/1080:s=1 +@end example + +@item +Inspect full last column of video frame. +@example +oscilloscope=x=1:y=0.5:s=1:t=1 +@end example + +@end itemize + @anchor{overlay} @section overlay diff --git a/libavfilter/Makefile b/libavfilter/Makefile index e40c6fe..66c36e4 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -236,6 +236,7 @@ OBJS-$(CONFIG_NULL_FILTER) += vf_null.o OBJS-$(CONFIG_OCR_FILTER) += vf_ocr.o OBJS-$(CONFIG_OCV_FILTER) += vf_libopencv.o OBJS-$(CONFIG_OPENCL) += deshake_opencl.o unsharp_opencl.o +OBJS-$(CONFIG_OSCILLOSCOPE_FILTER) += vf_datascope.o OBJS-$(CONFIG_OVERLAY_FILTER) += vf_overlay.o dualinput.o framesync.o OBJS-$(CONFIG_OWDENOISE_FILTER) += vf_owdenoise.o OBJS-$(CONFIG_PAD_FILTER) += vf_pad.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 0852b54..8fb87eb 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -246,6 +246,7 @@ static void register_all(void) REGISTER_FILTER(NULL, null, vf); REGISTER_FILTER(OCR, ocr, vf); REGISTER_FILTER(OCV, ocv, vf); + REGISTER_FILTER(OSCILLOSCOPE, oscilloscope, vf); REGISTER_FILTER(OVERLAY, overlay, vf); REGISTER_FILTER(OWDENOISE, owdenoise, vf); REGISTER_FILTER(PAD, pad, vf); diff --git a/libavfilter/vf_datascope.c b/libavfilter/vf_datascope.c index 5ad4bb8..4c3c903 100644 --- a/libavfilter/vf_datascope.c +++ b/libavfilter/vf_datascope.c @@ -630,3 +630,384 @@ AVFilter ff_vf_pixscope = { .inputs = pixscope_inputs, .outputs = pixscope_outputs, }; + +typedef struct PixelValues { + uint16_t p[4]; +} PixelValues; + +typedef struct OscilloscopeContext { + const AVClass *class; + + float xpos, ypos; + float tx, ty; + float size; + float tilt; + float theight, twidth; + float o; + int components; + int grid; + int statistics; + int scope; + + int x1, y1, x2, y2; + int ox, oy; + int height, width; + + int max; + int nb_planes; + int nb_comps; + int is_rgb; + uint8_t rgba_map[4]; + FFDrawContext draw; + FFDrawColor dark; + FFDrawColor black; + FFDrawColor white; + FFDrawColor green; + FFDrawColor blue; + FFDrawColor red; + FFDrawColor cyan; + FFDrawColor magenta; + FFDrawColor gray; + FFDrawColor *colors[4]; + + int nb_values; + PixelValues *values; + + void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value); + void (*draw_trace)(struct OscilloscopeContext *s, AVFrame *frame); +} OscilloscopeContext; + +#define OOFFSET(x) offsetof(OscilloscopeContext, x) + +static const AVOption oscilloscope_options[] = { + { "x", "set scope x position", OOFFSET(xpos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS }, + { "y", "set scope y position", OOFFSET(ypos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS }, + { "s", "set scope size", OOFFSET(size), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGS }, + { "t", "set scope tilt", OOFFSET(tilt), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS }, + { "o", "set trace opacity", OOFFSET(o), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGS }, + { "tx", "set trace x position", OOFFSET(tx), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS }, + { "ty", "set trace y position", OOFFSET(ty), AV_OPT_TYPE_FLOAT, {.dbl=0.9}, 0, 1, FLAGS }, + { "tw", "set trace width", OOFFSET(twidth), AV_OPT_TYPE_FLOAT, {.dbl=0.8},.1, 1, FLAGS }, + { "th", "set trace height", OOFFSET(theight), AV_OPT_TYPE_FLOAT, {.dbl=0.3},.1, 1, FLAGS }, + { "c", "set components to trace", OOFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 0, 15, FLAGS }, + { "g", "draw trace grid", OOFFSET(grid), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS }, + { "st", "draw statistics", OOFFSET(statistics), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS }, + { "sc", "draw scope", OOFFSET(scope), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS }, + { NULL } +}; + +AVFILTER_DEFINE_CLASS(oscilloscope); + +static void oscilloscope_uninit(AVFilterContext *ctx) +{ + OscilloscopeContext *s = ctx->priv; + + av_freep(&s->values); +} + +static void draw_line(FFDrawContext *draw, int x0, int y0, int x1, int y1, + AVFrame *out, FFDrawColor *color) +{ + int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = (dx > dy ? dx : -dy) / 2, e2; + int p, i; + + for (;;) { + if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) { + for (p = 0; p < draw->nb_planes; p++) { + if (draw->desc->comp[p].depth == 8) { + if (draw->nb_planes == 1) { + for (i = 0; i < 4; i++) { + out->data[0][y0 * out->linesize[0] + x0 * draw->pixelstep[0] + i] = color->comp[0].u8[i]; + } + } else { + out->data[p][out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p])] = color->comp[p].u8[0]; + } + } else { + if (draw->nb_planes == 1) { + for (i = 0; i < 4; i++) { + AV_WN16(out->data[0] + y0 * out->linesize[0] + 2 * (x0 * draw->pixelstep[0] + i), color->comp[0].u16[i]); + } + } else { + AV_WN16(out->data[p] + out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p]) * 2, color->comp[p].u16[0]); + } + } + } + } + + if (x0 == x1 && y0 == y1) + break; + + e2 = err; + + if (e2 >-dx) { + err -= dy; + x0 += sx; + } + + if (e2 < dy) { + err += dx; + y0 += sy; + } + } +} + +static void draw_trace8(OscilloscopeContext *s, AVFrame *frame) +{ + int i, c; + + for (i = 1; i < s->nb_values; i++) { + for (c = 0; c < s->nb_comps; c++) { + if ((1 << c) & s->components) { + int x = i * s->width / s->nb_values; + int px = (i - 1) * s->width / s->nb_values; + int py = s->height - s->values[i-1].p[c] * s->height / 256; + int y = s->height - s->values[i].p[c] * s->height / 256; + + draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]); + } + } + } +} + + +static void draw_trace16(OscilloscopeContext *s, AVFrame *frame) +{ + int i, c; + + for (i = 1; i < s->nb_values; i++) { + for (c = 0; c < s->nb_comps; c++) { + if ((1 << c) & s->components) { + int x = i * s->width / s->nb_values; + int px = (i - 1) * s->width / s->nb_values; + int py = s->height - s->values[i-1].p[c] * s->height / s->max; + int y = s->height - s->values[i].p[c] * s->height / s->max; + + draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]); + } + } + } +} + +static int oscilloscope_config_input(AVFilterLink *inlink) +{ + OscilloscopeContext *s = inlink->dst->priv; + int cx, cy, size; + double tilt; + + s->nb_planes = av_pix_fmt_count_planes(inlink->format); + ff_draw_init(&s->draw, inlink->format, 0); + ff_draw_color(&s->draw, &s->dark, (uint8_t[]){ 0, 0, 0, s->o * 255} ); + ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 255} ); + ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} ); + ff_draw_color(&s->draw, &s->green, (uint8_t[]){ 0, 255, 0, 255} ); + ff_draw_color(&s->draw, &s->blue, (uint8_t[]){ 0, 0, 255, 255} ); + ff_draw_color(&s->draw, &s->red, (uint8_t[]){ 255, 0, 0, 255} ); + ff_draw_color(&s->draw, &s->cyan, (uint8_t[]){ 0, 255, 255, 255} ); + ff_draw_color(&s->draw, &s->magenta, (uint8_t[]){ 255, 0, 255, 255} ); + ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 128, 128, 128, 255} ); + s->nb_comps = s->draw.desc->nb_components; + s->is_rgb = s->draw.desc->flags & AV_PIX_FMT_FLAG_RGB; + + if (s->is_rgb) { + s->colors[0] = &s->red; + s->colors[1] = &s->green; + s->colors[2] = &s->blue; + s->colors[3] = &s->white; + ff_fill_rgba_map(s->rgba_map, inlink->format); + } else { + s->colors[0] = &s->white; + s->colors[1] = &s->cyan; + s->colors[2] = &s->magenta; + s->colors[3] = &s->white; + s->rgba_map[0] = 0; + s->rgba_map[1] = 1; + s->rgba_map[2] = 2; + s->rgba_map[3] = 3; + } + + if (s->draw.desc->comp[0].depth <= 8) { + s->pick_color = pick_color8; + s->draw_trace = draw_trace8; + } else { + s->pick_color = pick_color16; + s->draw_trace = draw_trace16; + } + + s->max = (1 << s->draw.desc->comp[0].depth); + cx = s->xpos * (inlink->w - 1); + cy = s->ypos * (inlink->h - 1); + s->height = s->theight * inlink->h; + s->width = s->twidth * inlink->w; + size = hypot(inlink->w, inlink->h); + + s->values = av_calloc(size, sizeof(*s->values)); + if (!s->values) + return AVERROR(ENOMEM); + + size *= s->size; + tilt = (s->tilt - 0.5) * M_PI; + s->x1 = cx - size / 2.0 * cos(tilt); + s->x2 = cx + size / 2.0 * cos(tilt); + s->y1 = cy - size / 2.0 * sin(tilt); + s->y2 = cy + size / 2.0 * sin(tilt); + s->ox = (inlink->w - s->width) * s->tx; + s->oy = (inlink->h - s->height) * s->ty; + + return 0; +} + +static void draw_scope(OscilloscopeContext *s, int x0, int y0, int x1, int y1, + AVFrame *out, PixelValues *p, int state) +{ + int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = (dx > dy ? dx : -dy) / 2, e2; + + for (;;) { + if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) { + FFDrawColor color = { { 0 } }; + int value[4] = { 0 }; + + s->pick_color(&s->draw, &color, out, x0, y0, value); + s->values[s->nb_values].p[0] = value[0]; + s->values[s->nb_values].p[1] = value[1]; + s->values[s->nb_values].p[2] = value[2]; + s->values[s->nb_values].p[3] = value[3]; + s->nb_values++; + + if (s->scope) { + if (s->draw.desc->comp[0].depth == 8) { + if (s->draw.nb_planes == 1) { + int i; + + for (i = 0; i < s->draw.pixelstep[0]; i++) + out->data[0][out->linesize[0] * y0 + x0 * s->draw.pixelstep[0] + i] = 255 * ((s->nb_values + state) & 1); + } else { + out->data[0][out->linesize[0] * y0 + x0] = 255 * ((s->nb_values + state) & 1); + } + } else { + if (s->draw.nb_planes == 1) { + int i; + + for (i = 0; i < s->draw.pixelstep[0]; i++) + AV_WN16(out->data[0] + out->linesize[0] * y0 + 2 * x0 * (s->draw.pixelstep[0] + i), (s->max - 1) * ((s->nb_values + state) & 1)); + } else { + AV_WN16(out->data[0] + out->linesize[0] * y0 + 2 * x0, (s->max - 1) * ((s->nb_values + state) & 1)); + } + } + } + } + + if (x0 == x1 && y0 == y1) + break; + + e2 = err; + + if (e2 >-dx) { + err -= dy; + x0 += sx; + } + + if (e2 < dy) { + err += dx; + y0 += sy; + } + } +} + +static int oscilloscope_filter_frame(AVFilterLink *inlink, AVFrame *frame) +{ + AVFilterContext *ctx = inlink->dst; + OscilloscopeContext *s = ctx->priv; + AVFilterLink *outlink = ctx->outputs[0]; + float average[4] = { 0 }; + int max[4] = { 0 }; + int min[4] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX }; + int i, c; + + s->nb_values = 0; + draw_scope(s, s->x1, s->y1, s->x2, s->y2, frame, s->values, inlink->frame_count_in & 1); + ff_blend_rectangle(&s->draw, &s->dark, frame->data, frame->linesize, + frame->width, frame->height, + s->ox, s->oy, s->width, s->height); + + if (s->grid) { + ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize, + s->ox, s->oy, s->width - 1, 1); + + for (i = 1; i < 5; i++) { + ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize, + s->ox, s->oy + i * (s->height - 1) / 4, s->width, 1); + } + + for (i = 0; i < 10; i++) { + ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize, + s->ox + i * (s->width - 1) / 10, s->oy, 1, s->height); + } + + ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize, + s->ox + s->width - 1, s->oy, 1, s->height); + } + + s->draw_trace(s, frame); + + for (i = 0; i < s->nb_values; i++) { + for (c = 0; c < s->nb_comps; c++) { + if ((1 << c) & s->components) { + max[c] = FFMAX(max[c], s->values[i].p[c]); + min[c] = FFMIN(min[c], s->values[i].p[c]); + average[c] += s->values[i].p[c]; + } + } + } + for (c = 0; c < s->nb_comps; c++) { + average[c] /= s->nb_values; + } + + if (s->statistics && s->height > 10 && s->width > 280 * s->nb_comps) { + for (c = 0, i = 0; c < s->nb_comps; c++) { + if ((1 << c) & s->components) { + const char rgba[4] = { 'R', 'G', 'B', 'A' }; + const char yuva[4] = { 'Y', 'U', 'V', 'A' }; + char text[128]; + + snprintf(text, sizeof(text), "%c avg:%.1f min:%d max:%d\n", s->is_rgb ? rgba[c] : yuva[c], average[s->rgba_map[c]], min[s->rgba_map[c]], max[s->rgba_map[c]]); + draw_text(&s->draw, frame, &s->white, s->ox + 2 + 280 * i++, s->oy + s->height - 10, text, 0); + } + } + } + + return ff_filter_frame(outlink, frame); +} + +static const AVFilterPad oscilloscope_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = oscilloscope_filter_frame, + .config_props = oscilloscope_config_input, + .needs_writable = 1, + }, + { NULL } +}; + +static const AVFilterPad oscilloscope_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + }, + { NULL } +}; + +AVFilter ff_vf_oscilloscope = { + .name = "oscilloscope", + .description = NULL_IF_CONFIG_SMALL("2D Video Oscilloscope."), + .priv_size = sizeof(OscilloscopeContext), + .priv_class = &oscilloscope_class, + .query_formats = query_formats, + .uninit = oscilloscope_uninit, + .inputs = oscilloscope_inputs, + .outputs = oscilloscope_outputs, +};