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
50typedef struct TestSourceContext {
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
95static const AVOption options[] = {
96    COMMON_OPTIONS
97    { NULL }
98};
99
100static 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
115static av_cold void uninit(AVFilterContext *ctx)
116{
117    TestSourceContext *test = ctx->priv;
118
119    av_frame_free(&test->picref);
120}
121
122static 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
135static 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
178static 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
185AVFILTER_DEFINE_CLASS(color);
186
187static 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
195static 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
203static int color_query_formats(AVFilterContext *ctx)
204{
205    ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
206    return 0;
207}
208
209static 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
229static 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
251static 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
261AVFilter ff_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
278static 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
284AVFILTER_DEFINE_CLASS(haldclutsrc);
285
286static 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
349static 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
357static 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
373static 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
382static 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
392AVFilter ff_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
408AVFILTER_DEFINE_CLASS(nullsrc);
409
410static void nullsrc_fill_picture(AVFilterContext *ctx, AVFrame *picref) { }
411
412static 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
420static 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
430AVFilter ff_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
445static 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
452AVFILTER_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 */
466static 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
481static 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 segments {
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
526static 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
636static 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
644static 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
653static 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
663AVFilter ff_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
680AVFILTER_DEFINE_CLASS(rgbtestsrc);
681
682#define R 0
683#define G 1
684#define B 2
685#define A 3
686
687static 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
718static 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
738static 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
747static 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
761static 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
769static 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
779AVFilter ff_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
795static 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
805static 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
815static const uint8_t white[4] = { 235, 128, 128, 255 };
816static const uint8_t black[4] = {  19, 128, 128, 255 }; /* 7.5% intensity black */
817
818/* pluge pulses */
819static const uint8_t neg4ire[4] = {  9, 128, 128, 255 }; /*  3.5% intensity black */
820static const uint8_t pos4ire[4] = { 29, 128, 128, 255 }; /* 11.5% intensity black */
821
822/* fudged Q/-I */
823static const uint8_t i_pixel[4] = { 61, 153,  99, 255 };
824static const uint8_t q_pixel[4] = { 35, 174, 152, 255 };
825
826static const uint8_t gray40[4] = { 104, 128, 128, 255 };
827static const uint8_t gray15[4] = {  49, 128, 128, 255 };
828static const uint8_t   cyan[4] = { 188, 154,  16, 255 };
829static const uint8_t yellow[4] = { 219,  16, 138, 255 };
830static const uint8_t   blue[4] = {  32, 240, 118, 255 };
831static const uint8_t    red[4] = {  63, 102, 240, 255 };
832static const uint8_t black0[4] = {  16, 128, 128, 255 };
833static const uint8_t black2[4] = {  20, 128, 128, 255 };
834static const uint8_t black4[4] = {  25, 128, 128, 255 };
835static const uint8_t   neg2[4] = {  12, 128, 128, 255 };
836
837static 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
878static 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
890static 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
903AVFILTER_DEFINE_CLASS(smptebars);
904
905static 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
944static 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
953AVFilter ff_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
970AVFILTER_DEFINE_CLASS(smptehdbars);
971
972static 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
1049static 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
1058AVFilter ff_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