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  1. /*
  2.  * Copyright (c) 2007 Nicolas George <nicolas.george@normalesup.org>
  3.  * Copyright (c) 2011 Stefano Sabatini
  4.  * Copyright (c) 2012 Paul B Mahol
  5.  *
  6.  * This file is part of FFmpeg.
  7.  *
  8.  * FFmpeg is free software; you can redistribute it and/or
  9.  * modify it under the terms of the GNU Lesser General Public
  10.  * License as published by the Free Software Foundation; either
  11.  * version 2.1 of the License, or (at your option) any later version.
  12.  *
  13.  * FFmpeg is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16.  * Lesser General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU Lesser General Public
  19.  * License along with FFmpeg; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21.  */
  22.  
  23. /**
  24.  * @file
  25.  * Misc test sources.
  26.  *
  27.  * testsrc is based on the test pattern generator demuxer by Nicolas George:
  28.  * http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2007-October/037845.html
  29.  *
  30.  * rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by
  31.  * Michael Niedermayer.
  32.  *
  33.  * smptebars and smptehdbars are by Paul B Mahol.
  34.  */
  35.  
  36. #include <float.h>
  37.  
  38. #include "libavutil/avassert.h"
  39. #include "libavutil/common.h"
  40. #include "libavutil/opt.h"
  41. #include "libavutil/imgutils.h"
  42. #include "libavutil/intreadwrite.h"
  43. #include "libavutil/parseutils.h"
  44. #include "avfilter.h"
  45. #include "drawutils.h"
  46. #include "formats.h"
  47. #include "internal.h"
  48. #include "video.h"
  49.  
  50. typedef struct {
  51.     const AVClass *class;
  52.     int w, h;
  53.     unsigned int nb_frame;
  54.     AVRational time_base, frame_rate;
  55.     int64_t pts;
  56.     int64_t duration;           ///< duration expressed in microseconds
  57.     AVRational sar;             ///< sample aspect ratio
  58.     int draw_once;              ///< draw only the first frame, always put out the same picture
  59.     int draw_once_reset;        ///< draw only the first frame or in case of reset
  60.     AVFrame *picref;            ///< cached reference containing the painted picture
  61.  
  62.     void (* fill_picture_fn)(AVFilterContext *ctx, AVFrame *frame);
  63.  
  64.     /* only used by testsrc */
  65.     int nb_decimals;
  66.  
  67.     /* only used by color */
  68.     FFDrawContext draw;
  69.     FFDrawColor color;
  70.     uint8_t color_rgba[4];
  71.  
  72.     /* only used by rgbtest */
  73.     uint8_t rgba_map[4];
  74.  
  75.     /* only used by haldclut */
  76.     int level;
  77. } TestSourceContext;
  78.  
  79. #define OFFSET(x) offsetof(TestSourceContext, x)
  80. #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
  81.  
  82. #define SIZE_OPTIONS \
  83.     { "size",     "set video size",     OFFSET(w),        AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },\
  84.     { "s",        "set video size",     OFFSET(w),        AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },\
  85.  
  86. #define COMMON_OPTIONS_NOSIZE \
  87.     { "rate",     "set video rate",     OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },\
  88.     { "r",        "set video rate",     OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },\
  89.     { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },\
  90.     { "d",        "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },\
  91.     { "sar",      "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1},  0, INT_MAX, FLAGS },
  92.  
  93. #define COMMON_OPTIONS SIZE_OPTIONS COMMON_OPTIONS_NOSIZE
  94.  
  95. static const AVOption options[] = {
  96.     COMMON_OPTIONS
  97.     { NULL }
  98. };
  99.  
  100. static av_cold int init(AVFilterContext *ctx)
  101. {
  102.     TestSourceContext *test = ctx->priv;
  103.  
  104.     test->time_base = av_inv_q(test->frame_rate);
  105.     test->nb_frame = 0;
  106.     test->pts = 0;
  107.  
  108.     av_log(ctx, AV_LOG_VERBOSE, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
  109.            test->w, test->h, test->frame_rate.num, test->frame_rate.den,
  110.            test->duration < 0 ? -1 : (double)test->duration/1000000,
  111.            test->sar.num, test->sar.den);
  112.     return 0;
  113. }
  114.  
  115. static av_cold void uninit(AVFilterContext *ctx)
  116. {
  117.     TestSourceContext *test = ctx->priv;
  118.  
  119.     av_frame_free(&test->picref);
  120. }
  121.  
  122. static int config_props(AVFilterLink *outlink)
  123. {
  124.     TestSourceContext *test = outlink->src->priv;
  125.  
  126.     outlink->w = test->w;
  127.     outlink->h = test->h;
  128.     outlink->sample_aspect_ratio = test->sar;
  129.     outlink->frame_rate = test->frame_rate;
  130.     outlink->time_base  = test->time_base;
  131.  
  132.     return 0;
  133. }
  134.  
  135. static int request_frame(AVFilterLink *outlink)
  136. {
  137.     TestSourceContext *test = outlink->src->priv;
  138.     AVFrame *frame;
  139.  
  140.     if (test->duration >= 0 &&
  141.         av_rescale_q(test->pts, test->time_base, AV_TIME_BASE_Q) >= test->duration)
  142.         return AVERROR_EOF;
  143.  
  144.     if (test->draw_once) {
  145.         if (test->draw_once_reset) {
  146.             av_frame_free(&test->picref);
  147.             test->draw_once_reset = 0;
  148.         }
  149.         if (!test->picref) {
  150.             test->picref =
  151.                 ff_get_video_buffer(outlink, test->w, test->h);
  152.             if (!test->picref)
  153.                 return AVERROR(ENOMEM);
  154.             test->fill_picture_fn(outlink->src, test->picref);
  155.         }
  156.         frame = av_frame_clone(test->picref);
  157.     } else
  158.         frame = ff_get_video_buffer(outlink, test->w, test->h);
  159.  
  160.     if (!frame)
  161.         return AVERROR(ENOMEM);
  162.     frame->pts                 = test->pts;
  163.     frame->key_frame           = 1;
  164.     frame->interlaced_frame    = 0;
  165.     frame->pict_type           = AV_PICTURE_TYPE_I;
  166.     frame->sample_aspect_ratio = test->sar;
  167.     if (!test->draw_once)
  168.         test->fill_picture_fn(outlink->src, frame);
  169.  
  170.     test->pts++;
  171.     test->nb_frame++;
  172.  
  173.     return ff_filter_frame(outlink, frame);
  174. }
  175.  
  176. #if CONFIG_COLOR_FILTER
  177.  
  178. static const AVOption color_options[] = {
  179.     { "color", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, CHAR_MIN, CHAR_MAX, FLAGS },
  180.     { "c",     "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, CHAR_MIN, CHAR_MAX, FLAGS },
  181.     COMMON_OPTIONS
  182.     { NULL }
  183. };
  184.  
  185. AVFILTER_DEFINE_CLASS(color);
  186.  
  187. static void color_fill_picture(AVFilterContext *ctx, AVFrame *picref)
  188. {
  189.     TestSourceContext *test = ctx->priv;
  190.     ff_fill_rectangle(&test->draw, &test->color,
  191.                       picref->data, picref->linesize,
  192.                       0, 0, test->w, test->h);
  193. }
  194.  
  195. static av_cold int color_init(AVFilterContext *ctx)
  196. {
  197.     TestSourceContext *test = ctx->priv;
  198.     test->fill_picture_fn = color_fill_picture;
  199.     test->draw_once = 1;
  200.     return init(ctx);
  201. }
  202.  
  203. static int color_query_formats(AVFilterContext *ctx)
  204. {
  205.     ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
  206.     return 0;
  207. }
  208.  
  209. static int color_config_props(AVFilterLink *inlink)
  210. {
  211.     AVFilterContext *ctx = inlink->src;
  212.     TestSourceContext *test = ctx->priv;
  213.     int ret;
  214.  
  215.     ff_draw_init(&test->draw, inlink->format, 0);
  216.     ff_draw_color(&test->draw, &test->color, test->color_rgba);
  217.  
  218.     test->w = ff_draw_round_to_sub(&test->draw, 0, -1, test->w);
  219.     test->h = ff_draw_round_to_sub(&test->draw, 1, -1, test->h);
  220.     if (av_image_check_size(test->w, test->h, 0, ctx) < 0)
  221.         return AVERROR(EINVAL);
  222.  
  223.     if ((ret = config_props(inlink)) < 0)
  224.         return ret;
  225.  
  226.     return 0;
  227. }
  228.  
  229. static int color_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
  230.                                  char *res, int res_len, int flags)
  231. {
  232.     TestSourceContext *test = ctx->priv;
  233.     int ret;
  234.  
  235.     if (!strcmp(cmd, "color") || !strcmp(cmd, "c")) {
  236.         uint8_t color_rgba[4];
  237.  
  238.         ret = av_parse_color(color_rgba, args, -1, ctx);
  239.         if (ret < 0)
  240.             return ret;
  241.  
  242.         memcpy(test->color_rgba, color_rgba, sizeof(color_rgba));
  243.         ff_draw_color(&test->draw, &test->color, test->color_rgba);
  244.         test->draw_once_reset = 1;
  245.         return 0;
  246.     }
  247.  
  248.     return AVERROR(ENOSYS);
  249. }
  250.  
  251. static const AVFilterPad color_outputs[] = {
  252.     {
  253.         .name          = "default",
  254.         .type          = AVMEDIA_TYPE_VIDEO,
  255.         .request_frame = request_frame,
  256.         .config_props  = color_config_props,
  257.     },
  258.     {  NULL }
  259. };
  260.  
  261. AVFilter avfilter_vsrc_color = {
  262.     .name            = "color",
  263.     .description     = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."),
  264.     .priv_class      = &color_class,
  265.     .priv_size       = sizeof(TestSourceContext),
  266.     .init            = color_init,
  267.     .uninit          = uninit,
  268.     .query_formats   = color_query_formats,
  269.     .inputs          = NULL,
  270.     .outputs         = color_outputs,
  271.     .process_command = color_process_command,
  272. };
  273.  
  274. #endif /* CONFIG_COLOR_FILTER */
  275.  
  276. #if CONFIG_HALDCLUTSRC_FILTER
  277.  
  278. static const AVOption haldclutsrc_options[] = {
  279.     { "level", "set level", OFFSET(level), AV_OPT_TYPE_INT, {.i64 = 6}, 2, 8, FLAGS },
  280.     COMMON_OPTIONS_NOSIZE
  281.     { NULL }
  282. };
  283.  
  284. AVFILTER_DEFINE_CLASS(haldclutsrc);
  285.  
  286. static void haldclutsrc_fill_picture(AVFilterContext *ctx, AVFrame *frame)
  287. {
  288.     int i, j, k, x = 0, y = 0, is16bit = 0, step;
  289.     uint32_t alpha = 0;
  290.     const TestSourceContext *hc = ctx->priv;
  291.     int level = hc->level;
  292.     float scale;
  293.     const int w = frame->width;
  294.     const int h = frame->height;
  295.     const uint8_t *data = frame->data[0];
  296.     const int linesize  = frame->linesize[0];
  297.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
  298.     uint8_t rgba_map[4];
  299.  
  300.     av_assert0(w == h && w == level*level*level);
  301.  
  302.     ff_fill_rgba_map(rgba_map, frame->format);
  303.  
  304.     switch (frame->format) {
  305.     case AV_PIX_FMT_RGB48:
  306.     case AV_PIX_FMT_BGR48:
  307.     case AV_PIX_FMT_RGBA64:
  308.     case AV_PIX_FMT_BGRA64:
  309.         is16bit = 1;
  310.         alpha = 0xffff;
  311.         break;
  312.     case AV_PIX_FMT_RGBA:
  313.     case AV_PIX_FMT_BGRA:
  314.     case AV_PIX_FMT_ARGB:
  315.     case AV_PIX_FMT_ABGR:
  316.         alpha = 0xff;
  317.         break;
  318.     }
  319.  
  320.     step  = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
  321.     scale = ((float)(1 << (8*(is16bit+1))) - 1) / (level*level - 1);
  322.  
  323. #define LOAD_CLUT(nbits) do {                                                   \
  324.     uint##nbits##_t *dst = ((uint##nbits##_t *)(data + y*linesize)) + x*step;   \
  325.     dst[rgba_map[0]] = av_clip_uint##nbits(i * scale);                          \
  326.     dst[rgba_map[1]] = av_clip_uint##nbits(j * scale);                          \
  327.     dst[rgba_map[2]] = av_clip_uint##nbits(k * scale);                          \
  328.     if (step == 4)                                                              \
  329.         dst[rgba_map[3]] = alpha;                                               \
  330. } while (0)
  331.  
  332.     level *= level;
  333.     for (k = 0; k < level; k++) {
  334.         for (j = 0; j < level; j++) {
  335.             for (i = 0; i < level; i++) {
  336.                 if (!is16bit)
  337.                     LOAD_CLUT(8);
  338.                 else
  339.                     LOAD_CLUT(16);
  340.                 if (++x == w) {
  341.                     x = 0;
  342.                     y++;
  343.                 }
  344.             }
  345.         }
  346.     }
  347. }
  348.  
  349. static av_cold int haldclutsrc_init(AVFilterContext *ctx)
  350. {
  351.     TestSourceContext *hc = ctx->priv;
  352.     hc->fill_picture_fn = haldclutsrc_fill_picture;
  353.     hc->draw_once = 1;
  354.     return init(ctx);
  355. }
  356.  
  357. static int haldclutsrc_query_formats(AVFilterContext *ctx)
  358. {
  359.     static const enum AVPixelFormat pix_fmts[] = {
  360.         AV_PIX_FMT_RGB24,  AV_PIX_FMT_BGR24,
  361.         AV_PIX_FMT_RGBA,   AV_PIX_FMT_BGRA,
  362.         AV_PIX_FMT_ARGB,   AV_PIX_FMT_ABGR,
  363.         AV_PIX_FMT_0RGB,   AV_PIX_FMT_0BGR,
  364.         AV_PIX_FMT_RGB0,   AV_PIX_FMT_BGR0,
  365.         AV_PIX_FMT_RGB48,  AV_PIX_FMT_BGR48,
  366.         AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
  367.         AV_PIX_FMT_NONE,
  368.     };
  369.     ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
  370.     return 0;
  371. }
  372.  
  373. static int haldclutsrc_config_props(AVFilterLink *outlink)
  374. {
  375.     AVFilterContext *ctx = outlink->src;
  376.     TestSourceContext *hc = ctx->priv;
  377.  
  378.     hc->w = hc->h = hc->level * hc->level * hc->level;
  379.     return config_props(outlink);
  380. }
  381.  
  382. static const AVFilterPad haldclutsrc_outputs[] = {
  383.     {
  384.         .name          = "default",
  385.         .type          = AVMEDIA_TYPE_VIDEO,
  386.         .request_frame = request_frame,
  387.         .config_props  = haldclutsrc_config_props,
  388.     },
  389.     {  NULL }
  390. };
  391.  
  392. AVFilter avfilter_vsrc_haldclutsrc = {
  393.     .name          = "haldclutsrc",
  394.     .description   = NULL_IF_CONFIG_SMALL("Provide an identity Hald CLUT."),
  395.     .priv_class    = &haldclutsrc_class,
  396.     .priv_size     = sizeof(TestSourceContext),
  397.     .init          = haldclutsrc_init,
  398.     .uninit        = uninit,
  399.     .query_formats = haldclutsrc_query_formats,
  400.     .inputs        = NULL,
  401.     .outputs       = haldclutsrc_outputs,
  402. };
  403. #endif /* CONFIG_HALDCLUTSRC_FILTER */
  404.  
  405. #if CONFIG_NULLSRC_FILTER
  406.  
  407. #define nullsrc_options options
  408. AVFILTER_DEFINE_CLASS(nullsrc);
  409.  
  410. static void nullsrc_fill_picture(AVFilterContext *ctx, AVFrame *picref) { }
  411.  
  412. static av_cold int nullsrc_init(AVFilterContext *ctx)
  413. {
  414.     TestSourceContext *test = ctx->priv;
  415.  
  416.     test->fill_picture_fn = nullsrc_fill_picture;
  417.     return init(ctx);
  418. }
  419.  
  420. static const AVFilterPad nullsrc_outputs[] = {
  421.     {
  422.         .name          = "default",
  423.         .type          = AVMEDIA_TYPE_VIDEO,
  424.         .request_frame = request_frame,
  425.         .config_props  = config_props,
  426.     },
  427.     { NULL },
  428. };
  429.  
  430. AVFilter avfilter_vsrc_nullsrc = {
  431.     .name        = "nullsrc",
  432.     .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."),
  433.     .init        = nullsrc_init,
  434.     .uninit      = uninit,
  435.     .priv_size   = sizeof(TestSourceContext),
  436.     .priv_class  = &nullsrc_class,
  437.     .inputs      = NULL,
  438.     .outputs     = nullsrc_outputs,
  439. };
  440.  
  441. #endif /* CONFIG_NULLSRC_FILTER */
  442.  
  443. #if CONFIG_TESTSRC_FILTER
  444.  
  445. static const AVOption testsrc_options[] = {
  446.     COMMON_OPTIONS
  447.     { "decimals", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0},  0, 17, FLAGS },
  448.     { "n",        "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0},  0, 17, FLAGS },
  449.     { NULL }
  450. };
  451.  
  452. AVFILTER_DEFINE_CLASS(testsrc);
  453.  
  454. /**
  455.  * Fill a rectangle with value val.
  456.  *
  457.  * @param val the RGB value to set
  458.  * @param dst pointer to the destination buffer to fill
  459.  * @param dst_linesize linesize of destination
  460.  * @param segment_width width of the segment
  461.  * @param x horizontal coordinate where to draw the rectangle in the destination buffer
  462.  * @param y horizontal coordinate where to draw the rectangle in the destination buffer
  463.  * @param w width  of the rectangle to draw, expressed as a number of segment_width units
  464.  * @param h height of the rectangle to draw, expressed as a number of segment_width units
  465.  */
  466. static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, int segment_width,
  467.                            int x, int y, int w, int h)
  468. {
  469.     int i;
  470.     int step = 3;
  471.  
  472.     dst += segment_width * (step * x + y * dst_linesize);
  473.     w *= segment_width * step;
  474.     h *= segment_width;
  475.     for (i = 0; i < h; i++) {
  476.         memset(dst, val, w);
  477.         dst += dst_linesize;
  478.     }
  479. }
  480.  
  481. static void draw_digit(int digit, uint8_t *dst, int dst_linesize,
  482.                        int segment_width)
  483. {
  484. #define TOP_HBAR        1
  485. #define MID_HBAR        2
  486. #define BOT_HBAR        4
  487. #define LEFT_TOP_VBAR   8
  488. #define LEFT_BOT_VBAR  16
  489. #define RIGHT_TOP_VBAR 32
  490. #define RIGHT_BOT_VBAR 64
  491.     struct {
  492.         int x, y, w, h;
  493.     } segments[] = {
  494.         { 1,  0, 5, 1 }, /* TOP_HBAR */
  495.         { 1,  6, 5, 1 }, /* MID_HBAR */
  496.         { 1, 12, 5, 1 }, /* BOT_HBAR */
  497.         { 0,  1, 1, 5 }, /* LEFT_TOP_VBAR */
  498.         { 0,  7, 1, 5 }, /* LEFT_BOT_VBAR */
  499.         { 6,  1, 1, 5 }, /* RIGHT_TOP_VBAR */
  500.         { 6,  7, 1, 5 }  /* RIGHT_BOT_VBAR */
  501.     };
  502.     static const unsigned char masks[10] = {
  503.         /* 0 */ TOP_HBAR         |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
  504.         /* 1 */                                                        RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
  505.         /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR                             |RIGHT_TOP_VBAR,
  506.         /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR                            |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
  507.         /* 4 */          MID_HBAR         |LEFT_TOP_VBAR              |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
  508.         /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR                             |RIGHT_BOT_VBAR,
  509.         /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR               |RIGHT_BOT_VBAR,
  510.         /* 7 */ TOP_HBAR                                              |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
  511.         /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
  512.         /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR              |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
  513.     };
  514.     unsigned mask = masks[digit];
  515.     int i;
  516.  
  517.     draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
  518.     for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
  519.         if (mask & (1<<i))
  520.             draw_rectangle(255, dst, dst_linesize, segment_width,
  521.                            segments[i].x, segments[i].y, segments[i].w, segments[i].h);
  522. }
  523.  
  524. #define GRADIENT_SIZE (6 * 256)
  525.  
  526. static void test_fill_picture(AVFilterContext *ctx, AVFrame *frame)
  527. {
  528.     TestSourceContext *test = ctx->priv;
  529.     uint8_t *p, *p0;
  530.     int x, y;
  531.     int color, color_rest;
  532.     int icolor;
  533.     int radius;
  534.     int quad0, quad;
  535.     int dquad_x, dquad_y;
  536.     int grad, dgrad, rgrad, drgrad;
  537.     int seg_size;
  538.     int second;
  539.     int i;
  540.     uint8_t *data = frame->data[0];
  541.     int width  = frame->width;
  542.     int height = frame->height;
  543.  
  544.     /* draw colored bars and circle */
  545.     radius = (width + height) / 4;
  546.     quad0 = width * width / 4 + height * height / 4 - radius * radius;
  547.     dquad_y = 1 - height;
  548.     p0 = data;
  549.     for (y = 0; y < height; y++) {
  550.         p = p0;
  551.         color = 0;
  552.         color_rest = 0;
  553.         quad = quad0;
  554.         dquad_x = 1 - width;
  555.         for (x = 0; x < width; x++) {
  556.             icolor = color;
  557.             if (quad < 0)
  558.                 icolor ^= 7;
  559.             quad += dquad_x;
  560.             dquad_x += 2;
  561.             *(p++) = icolor & 1 ? 255 : 0;
  562.             *(p++) = icolor & 2 ? 255 : 0;
  563.             *(p++) = icolor & 4 ? 255 : 0;
  564.             color_rest += 8;
  565.             if (color_rest >= width) {
  566.                 color_rest -= width;
  567.                 color++;
  568.             }
  569.         }
  570.         quad0 += dquad_y;
  571.         dquad_y += 2;
  572.         p0 += frame->linesize[0];
  573.     }
  574.  
  575.     /* draw sliding color line */
  576.     p0 = p = data + frame->linesize[0] * (height * 3/4);
  577.     grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
  578.         GRADIENT_SIZE;
  579.     rgrad = 0;
  580.     dgrad = GRADIENT_SIZE / width;
  581.     drgrad = GRADIENT_SIZE % width;
  582.     for (x = 0; x < width; x++) {
  583.         *(p++) =
  584.             grad < 256 || grad >= 5 * 256 ? 255 :
  585.             grad >= 2 * 256 && grad < 4 * 256 ? 0 :
  586.             grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
  587.         *(p++) =
  588.             grad >= 4 * 256 ? 0 :
  589.             grad >= 1 * 256 && grad < 3 * 256 ? 255 :
  590.             grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
  591.         *(p++) =
  592.             grad < 2 * 256 ? 0 :
  593.             grad >= 3 * 256 && grad < 5 * 256 ? 255 :
  594.             grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
  595.         grad += dgrad;
  596.         rgrad += drgrad;
  597.         if (rgrad >= GRADIENT_SIZE) {
  598.             grad++;
  599.             rgrad -= GRADIENT_SIZE;
  600.         }
  601.         if (grad >= GRADIENT_SIZE)
  602.             grad -= GRADIENT_SIZE;
  603.     }
  604.     p = p0;
  605.     for (y = height / 8; y > 0; y--) {
  606.         memcpy(p+frame->linesize[0], p, 3 * width);
  607.         p += frame->linesize[0];
  608.     }
  609.  
  610.     /* draw digits */
  611.     seg_size = width / 80;
  612.     if (seg_size >= 1 && height >= 13 * seg_size) {
  613.         int64_t p10decimals = 1;
  614.         double time = av_q2d(test->time_base) * test->nb_frame *
  615.                       pow(10, test->nb_decimals);
  616.         if (time >= INT_MAX)
  617.             return;
  618.  
  619.         for (x = 0; x < test->nb_decimals; x++)
  620.             p10decimals *= 10;
  621.  
  622.         second = av_rescale_rnd(test->nb_frame * test->time_base.num, p10decimals, test->time_base.den, AV_ROUND_ZERO);
  623.         x = width - (width - seg_size * 64) / 2;
  624.         y = (height - seg_size * 13) / 2;
  625.         p = data + (x*3 + y * frame->linesize[0]);
  626.         for (i = 0; i < 8; i++) {
  627.             p -= 3 * 8 * seg_size;
  628.             draw_digit(second % 10, p, frame->linesize[0], seg_size);
  629.             second /= 10;
  630.             if (second == 0)
  631.                 break;
  632.         }
  633.     }
  634. }
  635.  
  636. static av_cold int test_init(AVFilterContext *ctx)
  637. {
  638.     TestSourceContext *test = ctx->priv;
  639.  
  640.     test->fill_picture_fn = test_fill_picture;
  641.     return init(ctx);
  642. }
  643.  
  644. static int test_query_formats(AVFilterContext *ctx)
  645. {
  646.     static const enum AVPixelFormat pix_fmts[] = {
  647.         AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
  648.     };
  649.     ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
  650.     return 0;
  651. }
  652.  
  653. static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = {
  654.     {
  655.         .name          = "default",
  656.         .type          = AVMEDIA_TYPE_VIDEO,
  657.         .request_frame = request_frame,
  658.         .config_props  = config_props,
  659.     },
  660.     { NULL }
  661. };
  662.  
  663. AVFilter avfilter_vsrc_testsrc = {
  664.     .name          = "testsrc",
  665.     .description   = NULL_IF_CONFIG_SMALL("Generate test pattern."),
  666.     .priv_size     = sizeof(TestSourceContext),
  667.     .priv_class    = &testsrc_class,
  668.     .init          = test_init,
  669.     .uninit        = uninit,
  670.     .query_formats = test_query_formats,
  671.     .inputs        = NULL,
  672.     .outputs       = avfilter_vsrc_testsrc_outputs,
  673. };
  674.  
  675. #endif /* CONFIG_TESTSRC_FILTER */
  676.  
  677. #if CONFIG_RGBTESTSRC_FILTER
  678.  
  679. #define rgbtestsrc_options options
  680. AVFILTER_DEFINE_CLASS(rgbtestsrc);
  681.  
  682. #define R 0
  683. #define G 1
  684. #define B 2
  685. #define A 3
  686.  
  687. static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
  688.                               int x, int y, int r, int g, int b, enum AVPixelFormat fmt,
  689.                               uint8_t rgba_map[4])
  690. {
  691.     int32_t v;
  692.     uint8_t *p;
  693.  
  694.     switch (fmt) {
  695.     case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
  696.     case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
  697.     case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
  698.     case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
  699.     case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
  700.     case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
  701.     case AV_PIX_FMT_RGB24:
  702.     case AV_PIX_FMT_BGR24:
  703.         v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
  704.         p = dst + 3*x + y*dst_linesize;
  705.         AV_WL24(p, v);
  706.         break;
  707.     case AV_PIX_FMT_RGBA:
  708.     case AV_PIX_FMT_BGRA:
  709.     case AV_PIX_FMT_ARGB:
  710.     case AV_PIX_FMT_ABGR:
  711.         v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)) + (255 << (rgba_map[A]*8));
  712.         p = dst + 4*x + y*dst_linesize;
  713.         AV_WL32(p, v);
  714.         break;
  715.     }
  716. }
  717.  
  718. static void rgbtest_fill_picture(AVFilterContext *ctx, AVFrame *frame)
  719. {
  720.     TestSourceContext *test = ctx->priv;
  721.     int x, y, w = frame->width, h = frame->height;
  722.  
  723.     for (y = 0; y < h; y++) {
  724.          for (x = 0; x < w; x++) {
  725.              int c = 256*x/w;
  726.              int r = 0, g = 0, b = 0;
  727.  
  728.              if      (3*y < h  ) r = c;
  729.              else if (3*y < 2*h) g = c;
  730.              else                b = c;
  731.  
  732.              rgbtest_put_pixel(frame->data[0], frame->linesize[0], x, y, r, g, b,
  733.                                ctx->outputs[0]->format, test->rgba_map);
  734.          }
  735.      }
  736. }
  737.  
  738. static av_cold int rgbtest_init(AVFilterContext *ctx)
  739. {
  740.     TestSourceContext *test = ctx->priv;
  741.  
  742.     test->draw_once = 1;
  743.     test->fill_picture_fn = rgbtest_fill_picture;
  744.     return init(ctx);
  745. }
  746.  
  747. static int rgbtest_query_formats(AVFilterContext *ctx)
  748. {
  749.     static const enum AVPixelFormat pix_fmts[] = {
  750.         AV_PIX_FMT_RGBA, AV_PIX_FMT_ARGB, AV_PIX_FMT_BGRA, AV_PIX_FMT_ABGR,
  751.         AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB24,
  752.         AV_PIX_FMT_RGB444, AV_PIX_FMT_BGR444,
  753.         AV_PIX_FMT_RGB565, AV_PIX_FMT_BGR565,
  754.         AV_PIX_FMT_RGB555, AV_PIX_FMT_BGR555,
  755.         AV_PIX_FMT_NONE
  756.     };
  757.     ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
  758.     return 0;
  759. }
  760.  
  761. static int rgbtest_config_props(AVFilterLink *outlink)
  762. {
  763.     TestSourceContext *test = outlink->src->priv;
  764.  
  765.     ff_fill_rgba_map(test->rgba_map, outlink->format);
  766.     return config_props(outlink);
  767. }
  768.  
  769. static const AVFilterPad avfilter_vsrc_rgbtestsrc_outputs[] = {
  770.     {
  771.         .name          = "default",
  772.         .type          = AVMEDIA_TYPE_VIDEO,
  773.         .request_frame = request_frame,
  774.         .config_props  = rgbtest_config_props,
  775.     },
  776.     { NULL }
  777. };
  778.  
  779. AVFilter avfilter_vsrc_rgbtestsrc = {
  780.     .name          = "rgbtestsrc",
  781.     .description   = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
  782.     .priv_size     = sizeof(TestSourceContext),
  783.     .priv_class    = &rgbtestsrc_class,
  784.     .init          = rgbtest_init,
  785.     .uninit        = uninit,
  786.     .query_formats = rgbtest_query_formats,
  787.     .inputs        = NULL,
  788.     .outputs       = avfilter_vsrc_rgbtestsrc_outputs,
  789. };
  790.  
  791. #endif /* CONFIG_RGBTESTSRC_FILTER */
  792.  
  793. #if CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER
  794.  
  795. static const uint8_t rainbow[7][4] = {
  796.     { 180, 128, 128, 255 },     /* gray */
  797.     { 168,  44, 136, 255 },     /* yellow */
  798.     { 145, 147,  44, 255 },     /* cyan */
  799.     { 133,  63,  52, 255 },     /* green */
  800.     {  63, 193, 204, 255 },     /* magenta */
  801.     {  51, 109, 212, 255 },     /* red */
  802.     {  28, 212, 120, 255 },     /* blue */
  803. };
  804.  
  805. static const uint8_t wobnair[7][4] = {
  806.     {  32, 240, 118, 255 },     /* blue */
  807.     {  19, 128, 128, 255 },     /* 7.5% intensity black */
  808.     {  54, 184, 198, 255 },     /* magenta */
  809.     {  19, 128, 128, 255 },     /* 7.5% intensity black */
  810.     { 188, 154,  16, 255 },     /* cyan */
  811.     {  19, 128, 128, 255 },     /* 7.5% intensity black */
  812.     { 191, 128, 128, 255 },     /* gray */
  813. };
  814.  
  815. static const uint8_t white[4] = { 235, 128, 128, 255 };
  816. static const uint8_t black[4] = {  19, 128, 128, 255 }; /* 7.5% intensity black */
  817.  
  818. /* pluge pulses */
  819. static const uint8_t neg4ire[4] = {  9, 128, 128, 255 }; /*  3.5% intensity black */
  820. static const uint8_t pos4ire[4] = { 29, 128, 128, 255 }; /* 11.5% intensity black */
  821.  
  822. /* fudged Q/-I */
  823. static const uint8_t i_pixel[4] = { 61, 153,  99, 255 };
  824. static const uint8_t q_pixel[4] = { 35, 174, 152, 255 };
  825.  
  826. static const uint8_t gray40[4] = { 104, 128, 128, 255 };
  827. static const uint8_t gray15[4] = {  49, 128, 128, 255 };
  828. static const uint8_t   cyan[4] = { 188, 154,  16, 255 };
  829. static const uint8_t yellow[4] = { 219,  16, 138, 255 };
  830. static const uint8_t   blue[4] = {  32, 240, 118, 255 };
  831. static const uint8_t    red[4] = {  63, 102, 240, 255 };
  832. static const uint8_t black0[4] = {  16, 128, 128, 255 };
  833. static const uint8_t black2[4] = {  20, 128, 128, 255 };
  834. static const uint8_t black4[4] = {  25, 128, 128, 255 };
  835. static const uint8_t   neg2[4] = {  12, 128, 128, 255 };
  836.  
  837. static void draw_bar(TestSourceContext *test, const uint8_t color[4],
  838.                      unsigned x, unsigned y, unsigned w, unsigned h,
  839.                      AVFrame *frame)
  840. {
  841.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
  842.     uint8_t *p, *p0;
  843.     int plane;
  844.  
  845.     x = FFMIN(x, test->w - 1);
  846.     y = FFMIN(y, test->h - 1);
  847.     w = FFMIN(w, test->w - x);
  848.     h = FFMIN(h, test->h - y);
  849.  
  850.     av_assert0(x + w <= test->w);
  851.     av_assert0(y + h <= test->h);
  852.  
  853.     for (plane = 0; frame->data[plane]; plane++) {
  854.         const int c = color[plane];
  855.         const int linesize = frame->linesize[plane];
  856.         int i, px, py, pw, ph;
  857.  
  858.         if (plane == 1 || plane == 2) {
  859.             px = x >> desc->log2_chroma_w;
  860.             pw = w >> desc->log2_chroma_w;
  861.             py = y >> desc->log2_chroma_h;
  862.             ph = h >> desc->log2_chroma_h;
  863.         } else {
  864.             px = x;
  865.             pw = w;
  866.             py = y;
  867.             ph = h;
  868.         }
  869.  
  870.         p0 = p = frame->data[plane] + py * linesize + px;
  871.         memset(p, c, pw);
  872.         p += linesize;
  873.         for (i = 1; i < ph; i++, p += linesize)
  874.             memcpy(p, p0, pw);
  875.     }
  876. }
  877.  
  878. static int smptebars_query_formats(AVFilterContext *ctx)
  879. {
  880.     static const enum AVPixelFormat pix_fmts[] = {
  881.         AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
  882.         AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
  883.         AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
  884.         AV_PIX_FMT_NONE,
  885.     };
  886.     ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
  887.     return 0;
  888. }
  889.  
  890. static const AVFilterPad smptebars_outputs[] = {
  891.     {
  892.         .name          = "default",
  893.         .type          = AVMEDIA_TYPE_VIDEO,
  894.         .request_frame = request_frame,
  895.         .config_props  = config_props,
  896.     },
  897.     { NULL }
  898. };
  899.  
  900. #if CONFIG_SMPTEBARS_FILTER
  901.  
  902. #define smptebars_options options
  903. AVFILTER_DEFINE_CLASS(smptebars);
  904.  
  905. static void smptebars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
  906. {
  907.     TestSourceContext *test = ctx->priv;
  908.     int r_w, r_h, w_h, p_w, p_h, i, tmp, x = 0;
  909.     const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(picref->format);
  910.  
  911.     av_frame_set_colorspace(picref, AVCOL_SPC_BT470BG);
  912.  
  913.     r_w = FFALIGN((test->w + 6) / 7, 1 << pixdesc->log2_chroma_w);
  914.     r_h = FFALIGN(test->h * 2 / 3, 1 << pixdesc->log2_chroma_h);
  915.     w_h = FFALIGN(test->h * 3 / 4 - r_h,  1 << pixdesc->log2_chroma_h);
  916.     p_w = FFALIGN(r_w * 5 / 4, 1 << pixdesc->log2_chroma_w);
  917.     p_h = test->h - w_h - r_h;
  918.  
  919.     for (i = 0; i < 7; i++) {
  920.         draw_bar(test, rainbow[i], x, 0,   r_w, r_h, picref);
  921.         draw_bar(test, wobnair[i], x, r_h, r_w, w_h, picref);
  922.         x += r_w;
  923.     }
  924.     x = 0;
  925.     draw_bar(test, i_pixel, x, r_h + w_h, p_w, p_h, picref);
  926.     x += p_w;
  927.     draw_bar(test, white, x, r_h + w_h, p_w, p_h, picref);
  928.     x += p_w;
  929.     draw_bar(test, q_pixel, x, r_h + w_h, p_w, p_h, picref);
  930.     x += p_w;
  931.     tmp = FFALIGN(5 * r_w - x,  1 << pixdesc->log2_chroma_w);
  932.     draw_bar(test, black, x, r_h + w_h, tmp, p_h, picref);
  933.     x += tmp;
  934.     tmp = FFALIGN(r_w / 3,  1 << pixdesc->log2_chroma_w);
  935.     draw_bar(test, neg4ire, x, r_h + w_h, tmp, p_h, picref);
  936.     x += tmp;
  937.     draw_bar(test, black, x, r_h + w_h, tmp, p_h, picref);
  938.     x += tmp;
  939.     draw_bar(test, pos4ire, x, r_h + w_h, tmp, p_h, picref);
  940.     x += tmp;
  941.     draw_bar(test, black, x, r_h + w_h, test->w - x, p_h, picref);
  942. }
  943.  
  944. static av_cold int smptebars_init(AVFilterContext *ctx)
  945. {
  946.     TestSourceContext *test = ctx->priv;
  947.  
  948.     test->fill_picture_fn = smptebars_fill_picture;
  949.     test->draw_once = 1;
  950.     return init(ctx);
  951. }
  952.  
  953. AVFilter avfilter_vsrc_smptebars = {
  954.     .name          = "smptebars",
  955.     .description   = NULL_IF_CONFIG_SMALL("Generate SMPTE color bars."),
  956.     .priv_size     = sizeof(TestSourceContext),
  957.     .priv_class    = &smptebars_class,
  958.     .init          = smptebars_init,
  959.     .uninit        = uninit,
  960.     .query_formats = smptebars_query_formats,
  961.     .inputs        = NULL,
  962.     .outputs       = smptebars_outputs,
  963. };
  964.  
  965. #endif  /* CONFIG_SMPTEBARS_FILTER */
  966.  
  967. #if CONFIG_SMPTEHDBARS_FILTER
  968.  
  969. #define smptehdbars_options options
  970. AVFILTER_DEFINE_CLASS(smptehdbars);
  971.  
  972. static void smptehdbars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
  973. {
  974.     TestSourceContext *test = ctx->priv;
  975.     int d_w, r_w, r_h, l_w, i, tmp, x = 0, y = 0;
  976.     const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(picref->format);
  977.  
  978.     av_frame_set_colorspace(picref, AVCOL_SPC_BT709);
  979.  
  980.     d_w = FFALIGN(test->w / 8, 1 << pixdesc->log2_chroma_w);
  981.     r_h = FFALIGN(test->h * 7 / 12, 1 << pixdesc->log2_chroma_h);
  982.     draw_bar(test, gray40, x, 0, d_w, r_h, picref);
  983.     x += d_w;
  984.  
  985.     r_w = FFALIGN((((test->w + 3) / 4) * 3) / 7, 1 << pixdesc->log2_chroma_w);
  986.     for (i = 0; i < 7; i++) {
  987.         draw_bar(test, rainbow[i], x, 0, r_w, r_h, picref);
  988.         x += r_w;
  989.     }
  990.     draw_bar(test, gray40, x, 0, test->w - x, r_h, picref);
  991.     y = r_h;
  992.     r_h = FFALIGN(test->h / 12, 1 << pixdesc->log2_chroma_h);
  993.     draw_bar(test, cyan, 0, y, d_w, r_h, picref);
  994.     x = d_w;
  995.     draw_bar(test, i_pixel, x, y, r_w, r_h, picref);
  996.     x += r_w;
  997.     tmp = r_w * 6;
  998.     draw_bar(test, rainbow[0], x, y, tmp, r_h, picref);
  999.     x += tmp;
  1000.     l_w = x;
  1001.     draw_bar(test, blue, x, y, test->w - x, r_h, picref);
  1002.     y += r_h;
  1003.     draw_bar(test, yellow, 0, y, d_w, r_h, picref);
  1004.     x = d_w;
  1005.     draw_bar(test, q_pixel, x, y, r_w, r_h, picref);
  1006.     x += r_w;
  1007.  
  1008.     for (i = 0; i < tmp; i += 1 << pixdesc->log2_chroma_w) {
  1009.         uint8_t yramp[4] = {0};
  1010.  
  1011.         yramp[0] = i * 255 / tmp;
  1012.         yramp[1] = 128;
  1013.         yramp[2] = 128;
  1014.         yramp[3] = 255;
  1015.  
  1016.         draw_bar(test, yramp, x, y, 1 << pixdesc->log2_chroma_w, r_h, picref);
  1017.         x += 1 << pixdesc->log2_chroma_w;
  1018.     }
  1019.     draw_bar(test, red, x, y, test->w - x, r_h, picref);
  1020.     y += r_h;
  1021.     draw_bar(test, gray15, 0, y, d_w, test->h - y, picref);
  1022.     x = d_w;
  1023.     tmp = FFALIGN(r_w * 3 / 2, 1 << pixdesc->log2_chroma_w);
  1024.     draw_bar(test, black0, x, y, tmp, test->h - y, picref);
  1025.     x += tmp;
  1026.     tmp = FFALIGN(r_w * 2, 1 << pixdesc->log2_chroma_w);
  1027.     draw_bar(test, white, x, y, tmp, test->h - y, picref);
  1028.     x += tmp;
  1029.     tmp = FFALIGN(r_w * 5 / 6, 1 << pixdesc->log2_chroma_w);
  1030.     draw_bar(test, black0, x, y, tmp, test->h - y, picref);
  1031.     x += tmp;
  1032.     tmp = FFALIGN(r_w / 3, 1 << pixdesc->log2_chroma_w);
  1033.     draw_bar(test,   neg2, x, y, tmp, test->h - y, picref);
  1034.     x += tmp;
  1035.     draw_bar(test, black0, x, y, tmp, test->h - y, picref);
  1036.     x += tmp;
  1037.     draw_bar(test, black2, x, y, tmp, test->h - y, picref);
  1038.     x += tmp;
  1039.     draw_bar(test, black0, x, y, tmp, test->h - y, picref);
  1040.     x += tmp;
  1041.     draw_bar(test, black4, x, y, tmp, test->h - y, picref);
  1042.     x += tmp;
  1043.     r_w = l_w - x;
  1044.     draw_bar(test, black0, x, y, r_w, test->h - y, picref);
  1045.     x += r_w;
  1046.     draw_bar(test, gray15, x, y, test->w - x, test->h - y, picref);
  1047. }
  1048.  
  1049. static av_cold int smptehdbars_init(AVFilterContext *ctx)
  1050. {
  1051.     TestSourceContext *test = ctx->priv;
  1052.  
  1053.     test->fill_picture_fn = smptehdbars_fill_picture;
  1054.     test->draw_once = 1;
  1055.     return init(ctx);
  1056. }
  1057.  
  1058. AVFilter avfilter_vsrc_smptehdbars = {
  1059.     .name          = "smptehdbars",
  1060.     .description   = NULL_IF_CONFIG_SMALL("Generate SMPTE HD color bars."),
  1061.     .priv_size     = sizeof(TestSourceContext),
  1062.     .priv_class    = &smptehdbars_class,
  1063.     .init          = smptehdbars_init,
  1064.     .uninit        = uninit,
  1065.     .query_formats = smptebars_query_formats,
  1066.     .inputs        = NULL,
  1067.     .outputs       = smptebars_outputs,
  1068. };
  1069.  
  1070. #endif  /* CONFIG_SMPTEHDBARS_FILTER */
  1071. #endif  /* CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER */
  1072.