/* * Copyright (c) 2007 Nicolas George * Copyright (c) 2011 Stefano Sabatini * Copyright (c) 2012 Paul B Mahol * * 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 * Misc test sources. * * testsrc is based on the test pattern generator demuxer by Nicolas George: * http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2007-October/037845.html * * rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by * Michael Niedermayer. * * smptebars is by Paul B Mahol. */ #include #include "libavutil/common.h" #include "libavutil/opt.h" #include "libavutil/imgutils.h" #include "libavutil/intreadwrite.h" #include "libavutil/parseutils.h" #include "avfilter.h" #include "drawutils.h" #include "formats.h" #include "internal.h" #include "video.h" typedef struct { const AVClass *class; int w, h; unsigned int nb_frame; AVRational time_base, frame_rate; int64_t pts; char *frame_rate_str; ///< video frame rate char *duration_str; ///< total duration of the generated video int64_t duration; ///< duration expressed in microseconds AVRational sar; ///< sample aspect ratio int nb_decimals; int draw_once; ///< draw only the first frame, always put out the same picture AVFilterBufferRef *picref; ///< cached reference containing the painted picture void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref); /* only used by color */ char *color_str; FFDrawContext draw; FFDrawColor color; uint8_t color_rgba[4]; /* only used by rgbtest */ uint8_t rgba_map[4]; } TestSourceContext; #define OFFSET(x) offsetof(TestSourceContext, x) #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM static const AVOption options[] = { { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS }, { "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS }, { "rate", "set video rate", OFFSET(frame_rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS }, { "r", "set video rate", OFFSET(frame_rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS }, { "duration", "set video duration", OFFSET(duration_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, { "d", "set video duration", OFFSET(duration_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1}, 0, INT_MAX, FLAGS }, /* only used by color */ { "color", "set color", OFFSET(color_str), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, FLAGS }, { "c", "set color", OFFSET(color_str), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, FLAGS }, /* only used by testsrc */ { "decimals", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGS }, { "n", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGS }, { NULL }, }; static av_cold int init(AVFilterContext *ctx, const char *args) { TestSourceContext *test = ctx->priv; int ret = 0; av_opt_set_defaults(test); if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) return ret; if ((ret = av_parse_video_rate(&test->frame_rate, test->frame_rate_str)) < 0) { av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->frame_rate_str); return ret; } test->duration = -1; if (test->duration_str && (ret = av_parse_time(&test->duration, test->duration_str, 1)) < 0) { av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration_str); return ret; } if (test->nb_decimals && strcmp(ctx->filter->name, "testsrc")) { av_log(ctx, AV_LOG_WARNING, "Option 'decimals' is ignored with source '%s'\n", ctx->filter->name); } if (test->color_str) { if (!strcmp(ctx->filter->name, "color")) { ret = av_parse_color(test->color_rgba, test->color_str, -1, ctx); if (ret < 0) return ret; } else { av_log(ctx, AV_LOG_WARNING, "Option 'color' is ignored with source '%s'\n", ctx->filter->name); } } test->time_base = av_inv_q(test->frame_rate); test->nb_frame = 0; test->pts = 0; av_log(ctx, AV_LOG_VERBOSE, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n", test->w, test->h, test->frame_rate.num, test->frame_rate.den, test->duration < 0 ? -1 : (double)test->duration/1000000, test->sar.num, test->sar.den); return 0; } static av_cold void uninit(AVFilterContext *ctx) { TestSourceContext *test = ctx->priv; av_opt_free(test); avfilter_unref_bufferp(&test->picref); } static int config_props(AVFilterLink *outlink) { TestSourceContext *test = outlink->src->priv; outlink->w = test->w; outlink->h = test->h; outlink->sample_aspect_ratio = test->sar; outlink->frame_rate = test->frame_rate; outlink->time_base = test->time_base; return 0; } static int request_frame(AVFilterLink *outlink) { TestSourceContext *test = outlink->src->priv; AVFilterBufferRef *outpicref; if (test->duration >= 0 && av_rescale_q(test->pts, test->time_base, AV_TIME_BASE_Q) >= test->duration) return AVERROR_EOF; if (test->draw_once) { if (!test->picref) { test->picref = ff_get_video_buffer(outlink, AV_PERM_WRITE|AV_PERM_PRESERVE|AV_PERM_REUSE, test->w, test->h); if (!test->picref) return AVERROR(ENOMEM); test->fill_picture_fn(outlink->src, test->picref); } outpicref = avfilter_ref_buffer(test->picref, ~AV_PERM_WRITE); } else outpicref = ff_get_video_buffer(outlink, AV_PERM_WRITE, test->w, test->h); if (!outpicref) return AVERROR(ENOMEM); outpicref->pts = test->pts; outpicref->pos = -1; outpicref->video->key_frame = 1; outpicref->video->interlaced = 0; outpicref->video->pict_type = AV_PICTURE_TYPE_I; outpicref->video->sample_aspect_ratio = test->sar; if (!test->draw_once) test->fill_picture_fn(outlink->src, outpicref); test->pts++; test->nb_frame++; return ff_filter_frame(outlink, outpicref); } #if CONFIG_COLOR_FILTER #define color_options options AVFILTER_DEFINE_CLASS(color); static void color_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { TestSourceContext *test = ctx->priv; ff_fill_rectangle(&test->draw, &test->color, picref->data, picref->linesize, 0, 0, test->w, test->h); } static av_cold int color_init(AVFilterContext *ctx, const char *args) { TestSourceContext *test = ctx->priv; test->class = &color_class; test->fill_picture_fn = color_fill_picture; test->draw_once = 1; av_opt_set(test, "color", "black", 0); return init(ctx, args); } static int color_query_formats(AVFilterContext *ctx) { ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0)); return 0; } static int color_config_props(AVFilterLink *inlink) { AVFilterContext *ctx = inlink->src; TestSourceContext *test = ctx->priv; int ret; ff_draw_init(&test->draw, inlink->format, 0); ff_draw_color(&test->draw, &test->color, test->color_rgba); test->w = ff_draw_round_to_sub(&test->draw, 0, -1, test->w); test->h = ff_draw_round_to_sub(&test->draw, 1, -1, test->h); if (av_image_check_size(test->w, test->h, 0, ctx) < 0) return AVERROR(EINVAL); if ((ret = config_props(inlink)) < 0) return ret; av_log(ctx, AV_LOG_VERBOSE, "color:0x%02x%02x%02x%02x\n", test->color_rgba[0], test->color_rgba[1], test->color_rgba[2], test->color_rgba[3]); return 0; } static const AVFilterPad color_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .request_frame = request_frame, .config_props = color_config_props, }, { NULL } }; AVFilter avfilter_vsrc_color = { .name = "color", .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."), .priv_size = sizeof(TestSourceContext), .init = color_init, .uninit = uninit, .query_formats = color_query_formats, .inputs = NULL, .outputs = color_outputs, .priv_class = &color_class, }; #endif /* CONFIG_COLOR_FILTER */ #if CONFIG_NULLSRC_FILTER #define nullsrc_options options AVFILTER_DEFINE_CLASS(nullsrc); static void nullsrc_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { } static av_cold int nullsrc_init(AVFilterContext *ctx, const char *args) { TestSourceContext *test = ctx->priv; test->class = &nullsrc_class; test->fill_picture_fn = nullsrc_fill_picture; return init(ctx, args); } static const AVFilterPad nullsrc_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .request_frame = request_frame, .config_props = config_props, }, { NULL }, }; AVFilter avfilter_vsrc_nullsrc = { .name = "nullsrc", .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."), .init = nullsrc_init, .uninit = uninit, .priv_size = sizeof(TestSourceContext), .inputs = NULL, .outputs = nullsrc_outputs, .priv_class = &nullsrc_class, }; #endif /* CONFIG_NULLSRC_FILTER */ #if CONFIG_TESTSRC_FILTER #define testsrc_options options AVFILTER_DEFINE_CLASS(testsrc); /** * Fill a rectangle with value val. * * @param val the RGB value to set * @param dst pointer to the destination buffer to fill * @param dst_linesize linesize of destination * @param segment_width width of the segment * @param x horizontal coordinate where to draw the rectangle in the destination buffer * @param y horizontal coordinate where to draw the rectangle in the destination buffer * @param w width of the rectangle to draw, expressed as a number of segment_width units * @param h height of the rectangle to draw, expressed as a number of segment_width units */ static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width, unsigned x, unsigned y, unsigned w, unsigned h) { int i; int step = 3; dst += segment_width * (step * x + y * dst_linesize); w *= segment_width * step; h *= segment_width; for (i = 0; i < h; i++) { memset(dst, val, w); dst += dst_linesize; } } static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize, unsigned segment_width) { #define TOP_HBAR 1 #define MID_HBAR 2 #define BOT_HBAR 4 #define LEFT_TOP_VBAR 8 #define LEFT_BOT_VBAR 16 #define RIGHT_TOP_VBAR 32 #define RIGHT_BOT_VBAR 64 struct { int x, y, w, h; } segments[] = { { 1, 0, 5, 1 }, /* TOP_HBAR */ { 1, 6, 5, 1 }, /* MID_HBAR */ { 1, 12, 5, 1 }, /* BOT_HBAR */ { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */ { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */ { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */ { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */ }; static const unsigned char masks[10] = { /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR, /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR, /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR, /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR, }; unsigned mask = masks[digit]; int i; draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13); for (i = 0; i < FF_ARRAY_ELEMS(segments); i++) if (mask & (1<priv; uint8_t *p, *p0; int x, y; int color, color_rest; int icolor; int radius; int quad0, quad; int dquad_x, dquad_y; int grad, dgrad, rgrad, drgrad; int seg_size; int second; int i; uint8_t *data = picref->data[0]; int width = picref->video->w; int height = picref->video->h; /* draw colored bars and circle */ radius = (width + height) / 4; quad0 = width * width / 4 + height * height / 4 - radius * radius; dquad_y = 1 - height; p0 = data; for (y = 0; y < height; y++) { p = p0; color = 0; color_rest = 0; quad = quad0; dquad_x = 1 - width; for (x = 0; x < width; x++) { icolor = color; if (quad < 0) icolor ^= 7; quad += dquad_x; dquad_x += 2; *(p++) = icolor & 1 ? 255 : 0; *(p++) = icolor & 2 ? 255 : 0; *(p++) = icolor & 4 ? 255 : 0; color_rest += 8; if (color_rest >= width) { color_rest -= width; color++; } } quad0 += dquad_y; dquad_y += 2; p0 += picref->linesize[0]; } /* draw sliding color line */ p0 = p = data + picref->linesize[0] * height * 3/4; grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) % GRADIENT_SIZE; rgrad = 0; dgrad = GRADIENT_SIZE / width; drgrad = GRADIENT_SIZE % width; for (x = 0; x < width; x++) { *(p++) = grad < 256 || grad >= 5 * 256 ? 255 : grad >= 2 * 256 && grad < 4 * 256 ? 0 : grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256; *(p++) = grad >= 4 * 256 ? 0 : grad >= 1 * 256 && grad < 3 * 256 ? 255 : grad < 1 * 256 ? grad : 4 * 256 - 1 - grad; *(p++) = grad < 2 * 256 ? 0 : grad >= 3 * 256 && grad < 5 * 256 ? 255 : grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad; grad += dgrad; rgrad += drgrad; if (rgrad >= GRADIENT_SIZE) { grad++; rgrad -= GRADIENT_SIZE; } if (grad >= GRADIENT_SIZE) grad -= GRADIENT_SIZE; } p = p0; for (y = height / 8; y > 0; y--) { memcpy(p+picref->linesize[0], p, 3 * width); p += picref->linesize[0]; } /* draw digits */ seg_size = width / 80; if (seg_size >= 1 && height >= 13 * seg_size) { double time = av_q2d(test->time_base) * test->nb_frame * pow(10, test->nb_decimals); if (time > INT_MAX) return; second = (int)time; x = width - (width - seg_size * 64) / 2; y = (height - seg_size * 13) / 2; p = data + (x*3 + y * picref->linesize[0]); for (i = 0; i < 8; i++) { p -= 3 * 8 * seg_size; draw_digit(second % 10, p, picref->linesize[0], seg_size); second /= 10; if (second == 0) break; } } } static av_cold int test_init(AVFilterContext *ctx, const char *args) { TestSourceContext *test = ctx->priv; test->class = &testsrc_class; test->fill_picture_fn = test_fill_picture; return init(ctx, args); } static int test_query_formats(AVFilterContext *ctx) { static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE }; ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); return 0; } static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .request_frame = request_frame, .config_props = config_props, }, { NULL } }; AVFilter avfilter_vsrc_testsrc = { .name = "testsrc", .description = NULL_IF_CONFIG_SMALL("Generate test pattern."), .priv_size = sizeof(TestSourceContext), .init = test_init, .uninit = uninit, .query_formats = test_query_formats, .inputs = NULL, .outputs = avfilter_vsrc_testsrc_outputs, .priv_class = &testsrc_class, }; #endif /* CONFIG_TESTSRC_FILTER */ #if CONFIG_RGBTESTSRC_FILTER #define rgbtestsrc_options options AVFILTER_DEFINE_CLASS(rgbtestsrc); #define R 0 #define G 1 #define B 2 #define A 3 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize, int x, int y, int r, int g, int b, enum AVPixelFormat fmt, uint8_t rgba_map[4]) { int32_t v; uint8_t *p; switch (fmt) { case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break; case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break; case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break; case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break; case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break; case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break; case AV_PIX_FMT_RGB24: case AV_PIX_FMT_BGR24: v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)); p = dst + 3*x + y*dst_linesize; AV_WL24(p, v); break; case AV_PIX_FMT_RGBA: case AV_PIX_FMT_BGRA: case AV_PIX_FMT_ARGB: case AV_PIX_FMT_ABGR: v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)) + (255 << (rgba_map[A]*8)); p = dst + 4*x + y*dst_linesize; AV_WL32(p, v); break; } } static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { TestSourceContext *test = ctx->priv; int x, y, w = picref->video->w, h = picref->video->h; for (y = 0; y < h; y++) { for (x = 0; x < picref->video->w; x++) { int c = 256*x/w; int r = 0, g = 0, b = 0; if (3*y < h ) r = c; else if (3*y < 2*h) g = c; else b = c; rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b, ctx->outputs[0]->format, test->rgba_map); } } } static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args) { TestSourceContext *test = ctx->priv; test->draw_once = 1; test->class = &rgbtestsrc_class; test->fill_picture_fn = rgbtest_fill_picture; return init(ctx, args); } static int rgbtest_query_formats(AVFilterContext *ctx) { static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_RGBA, AV_PIX_FMT_ARGB, AV_PIX_FMT_BGRA, AV_PIX_FMT_ABGR, AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB444, AV_PIX_FMT_BGR444, AV_PIX_FMT_RGB565, AV_PIX_FMT_BGR565, AV_PIX_FMT_RGB555, AV_PIX_FMT_BGR555, AV_PIX_FMT_NONE }; ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); return 0; } static int rgbtest_config_props(AVFilterLink *outlink) { TestSourceContext *test = outlink->src->priv; ff_fill_rgba_map(test->rgba_map, outlink->format); return config_props(outlink); } static const AVFilterPad avfilter_vsrc_rgbtestsrc_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .request_frame = request_frame, .config_props = rgbtest_config_props, }, { NULL } }; AVFilter avfilter_vsrc_rgbtestsrc = { .name = "rgbtestsrc", .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."), .priv_size = sizeof(TestSourceContext), .init = rgbtest_init, .uninit = uninit, .query_formats = rgbtest_query_formats, .inputs = NULL, .outputs = avfilter_vsrc_rgbtestsrc_outputs, .priv_class = &rgbtestsrc_class, }; #endif /* CONFIG_RGBTESTSRC_FILTER */ #if CONFIG_SMPTEBARS_FILTER #define smptebars_options options AVFILTER_DEFINE_CLASS(smptebars); static const uint8_t rainbow[7][4] = { { 191, 191, 191, 255 }, /* gray */ { 191, 191, 0, 255 }, /* yellow */ { 0, 191, 191, 255 }, /* cyan */ { 0, 191, 0, 255 }, /* green */ { 191, 0, 191, 255 }, /* magenta */ { 191, 0, 0, 255 }, /* red */ { 0, 0, 191, 255 }, /* blue */ }; static const uint8_t wobnair[7][4] = { { 0, 0, 191, 255 }, /* blue */ { 19, 19, 19, 255 }, /* 7.5% intensity black */ { 191, 0, 191, 255 }, /* magenta */ { 19, 19, 19, 255 }, /* 7.5% intensity black */ { 0, 191, 191, 255 }, /* cyan */ { 19, 19, 19, 255 }, /* 7.5% intensity black */ { 191, 191, 191, 255 }, /* gray */ }; static const uint8_t white[4] = { 255, 255, 255, 255 }; static const uint8_t black[4] = { 19, 19, 19, 255 }; /* 7.5% intensity black */ /* pluge pulses */ static const uint8_t neg4ire[4] = { 9, 9, 9, 255 }; /* 3.5% intensity black */ static const uint8_t pos4ire[4] = { 29, 29, 29, 255 }; /* 11.5% intensity black */ /* fudged Q/-I */ static const uint8_t i_pixel[4] = { 0, 68, 130, 255 }; static const uint8_t q_pixel[4] = { 67, 0, 130, 255 }; static void smptebars_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { TestSourceContext *test = ctx->priv; FFDrawColor color; int r_w, r_h, w_h, p_w, p_h, i, x = 0; r_w = (test->w + 6) / 7; r_h = test->h * 2 / 3; w_h = test->h * 3 / 4 - r_h; p_w = r_w * 5 / 4; p_h = test->h - w_h - r_h; #define DRAW_COLOR(rgba, x, y, w, h) \ ff_draw_color(&test->draw, &color, rgba); \ ff_fill_rectangle(&test->draw, &color, \ picref->data, picref->linesize, x, y, w, h) \ for (i = 0; i < 7; i++) { DRAW_COLOR(rainbow[i], x, 0, FFMIN(r_w, test->w - x), r_h); DRAW_COLOR(wobnair[i], x, r_h, FFMIN(r_w, test->w - x), w_h); x += r_w; } x = 0; DRAW_COLOR(i_pixel, x, r_h + w_h, p_w, p_h); x += p_w; DRAW_COLOR(white, x, r_h + w_h, p_w, p_h); x += p_w; DRAW_COLOR(q_pixel, x, r_h + w_h, p_w, p_h); x += p_w; DRAW_COLOR(black, x, r_h + w_h, 5 * r_w - x, p_h); x += 5 * r_w - x; DRAW_COLOR(neg4ire, x, r_h + w_h, r_w / 3, p_h); x += r_w / 3; DRAW_COLOR(black, x, r_h + w_h, r_w / 3, p_h); x += r_w / 3; DRAW_COLOR(pos4ire, x, r_h + w_h, r_w / 3, p_h); x += r_w / 3; DRAW_COLOR(black, x, r_h + w_h, test->w - x, p_h); } static av_cold int smptebars_init(AVFilterContext *ctx, const char *args) { TestSourceContext *test = ctx->priv; test->class = &smptebars_class; test->fill_picture_fn = smptebars_fill_picture; test->draw_once = 1; return init(ctx, args); } static int smptebars_query_formats(AVFilterContext *ctx) { ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0)); return 0; } static int smptebars_config_props(AVFilterLink *outlink) { AVFilterContext *ctx = outlink->src; TestSourceContext *test = ctx->priv; ff_draw_init(&test->draw, outlink->format, 0); return config_props(outlink); } static const AVFilterPad smptebars_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .request_frame = request_frame, .config_props = smptebars_config_props, }, { NULL } }; AVFilter avfilter_vsrc_smptebars = { .name = "smptebars", .description = NULL_IF_CONFIG_SMALL("Generate SMPTE color bars."), .priv_size = sizeof(TestSourceContext), .init = smptebars_init, .uninit = uninit, .query_formats = smptebars_query_formats, .inputs = NULL, .outputs = smptebars_outputs, .priv_class = &smptebars_class, }; #endif /* CONFIG_SMPTEBARS_FILTER */