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565e4993c6
Any alleged performance benefits gained from the split are purely mythological and do not justify added code complexity.
513 lines
17 KiB
C
513 lines
17 KiB
C
/*
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* Copyright (c) 2007 Nicolas George <nicolas.george@normalesup.org>
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* Copyright (c) 2011 Stefano Sabatini
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Misc test sources.
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*
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* testsrc is based on the test pattern generator demuxer by Nicolas George:
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* http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2007-October/037845.html
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*
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* rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by
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* Michael Niedermayer.
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*/
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#include <float.h>
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#include "libavutil/common.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/opt.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/parseutils.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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typedef struct {
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const AVClass *class;
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int h, w;
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unsigned int nb_frame;
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AVRational time_base;
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int64_t pts, max_pts;
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char *size; ///< video frame size
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char *rate; ///< video frame rate
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char *duration; ///< total duration of the generated video
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AVRational sar; ///< sample aspect ratio
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void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
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/* only used by rgbtest */
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int rgba_map[4];
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} TestSourceContext;
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#define OFFSET(x) offsetof(TestSourceContext, x)
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static const AVOption testsrc_options[] = {
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{ "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}},
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{ "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}},
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{ "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, },
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{ "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, },
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{ "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, },
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{ "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, INT_MAX },
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{ NULL },
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};
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static av_cold int init_common(AVFilterContext *ctx, const char *args)
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{
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TestSourceContext *test = ctx->priv;
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AVRational frame_rate_q;
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int64_t duration = -1;
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int ret = 0;
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av_opt_set_defaults(test);
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if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) {
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av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
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return ret;
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}
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if ((ret = av_parse_video_size(&test->w, &test->h, test->size)) < 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", test->size);
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return ret;
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}
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if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 ||
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frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->rate);
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return ret;
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}
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if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
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return ret;
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}
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test->time_base.num = frame_rate_q.den;
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test->time_base.den = frame_rate_q.num;
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test->max_pts = duration >= 0 ?
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av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
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test->nb_frame = 0;
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test->pts = 0;
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av_log(ctx, AV_LOG_DEBUG, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
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test->w, test->h, frame_rate_q.num, frame_rate_q.den,
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duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
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test->sar.num, test->sar.den);
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return 0;
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}
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static int config_props(AVFilterLink *outlink)
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{
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TestSourceContext *test = outlink->src->priv;
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outlink->w = test->w;
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outlink->h = test->h;
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outlink->sample_aspect_ratio = test->sar;
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outlink->time_base = test->time_base;
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return 0;
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}
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static int request_frame(AVFilterLink *outlink)
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{
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TestSourceContext *test = outlink->src->priv;
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AVFilterBufferRef *picref;
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if (test->max_pts >= 0 && test->pts > test->max_pts)
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return AVERROR_EOF;
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picref = ff_get_video_buffer(outlink, AV_PERM_WRITE, test->w, test->h);
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if (!picref)
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return AVERROR(ENOMEM);
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picref->pts = test->pts++;
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picref->pos = -1;
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picref->video->key_frame = 1;
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picref->video->interlaced = 0;
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picref->video->pict_type = AV_PICTURE_TYPE_I;
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picref->video->pixel_aspect = test->sar;
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test->nb_frame++;
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test->fill_picture_fn(outlink->src, picref);
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return ff_filter_frame(outlink, picref);
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}
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#if CONFIG_TESTSRC_FILTER
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static const char *testsrc_get_name(void *ctx)
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{
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return "testsrc";
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}
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static const AVClass testsrc_class = {
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.class_name = "TestSourceContext",
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.item_name = testsrc_get_name,
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.option = testsrc_options,
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};
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/**
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* Fill a rectangle with value val.
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*
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* @param val the RGB value to set
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* @param dst pointer to the destination buffer to fill
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* @param dst_linesize linesize of destination
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* @param segment_width width of the segment
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* @param x horizontal coordinate where to draw the rectangle in the destination buffer
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* @param y horizontal coordinate where to draw the rectangle in the destination buffer
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* @param w width of the rectangle to draw, expressed as a number of segment_width units
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* @param h height of the rectangle to draw, expressed as a number of segment_width units
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*/
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static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
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unsigned x, unsigned y, unsigned w, unsigned h)
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{
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int i;
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int step = 3;
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dst += segment_width * (step * x + y * dst_linesize);
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w *= segment_width * step;
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h *= segment_width;
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for (i = 0; i < h; i++) {
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memset(dst, val, w);
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dst += dst_linesize;
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}
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}
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static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
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unsigned segment_width)
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{
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#define TOP_HBAR 1
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#define MID_HBAR 2
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#define BOT_HBAR 4
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#define LEFT_TOP_VBAR 8
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#define LEFT_BOT_VBAR 16
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#define RIGHT_TOP_VBAR 32
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#define RIGHT_BOT_VBAR 64
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struct {
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int x, y, w, h;
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} segments[] = {
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{ 1, 0, 5, 1 }, /* TOP_HBAR */
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{ 1, 6, 5, 1 }, /* MID_HBAR */
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{ 1, 12, 5, 1 }, /* BOT_HBAR */
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{ 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
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{ 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
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{ 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
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{ 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
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};
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static const unsigned char masks[10] = {
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/* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
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/* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
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/* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
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/* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
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/* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
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/* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
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/* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
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/* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
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/* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
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/* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
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};
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unsigned mask = masks[digit];
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int i;
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draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
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for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
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if (mask & (1<<i))
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draw_rectangle(255, dst, dst_linesize, segment_width,
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segments[i].x, segments[i].y, segments[i].w, segments[i].h);
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}
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#define GRADIENT_SIZE (6 * 256)
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static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
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{
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TestSourceContext *test = ctx->priv;
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uint8_t *p, *p0;
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int x, y;
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int color, color_rest;
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int icolor;
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int radius;
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int quad0, quad;
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int dquad_x, dquad_y;
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int grad, dgrad, rgrad, drgrad;
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int seg_size;
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int second;
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int i;
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uint8_t *data = picref->data[0];
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int width = picref->video->w;
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int height = picref->video->h;
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/* draw colored bars and circle */
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radius = (width + height) / 4;
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quad0 = width * width / 4 + height * height / 4 - radius * radius;
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dquad_y = 1 - height;
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p0 = data;
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for (y = 0; y < height; y++) {
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p = p0;
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color = 0;
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color_rest = 0;
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quad = quad0;
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dquad_x = 1 - width;
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for (x = 0; x < width; x++) {
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icolor = color;
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if (quad < 0)
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icolor ^= 7;
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quad += dquad_x;
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dquad_x += 2;
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*(p++) = icolor & 1 ? 255 : 0;
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*(p++) = icolor & 2 ? 255 : 0;
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*(p++) = icolor & 4 ? 255 : 0;
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color_rest += 8;
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if (color_rest >= width) {
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color_rest -= width;
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color++;
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}
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}
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quad0 += dquad_y;
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dquad_y += 2;
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p0 += picref->linesize[0];
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}
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/* draw sliding color line */
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p = data + picref->linesize[0] * height * 3/4;
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grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
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GRADIENT_SIZE;
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rgrad = 0;
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dgrad = GRADIENT_SIZE / width;
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drgrad = GRADIENT_SIZE % width;
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for (x = 0; x < width; x++) {
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*(p++) =
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grad < 256 || grad >= 5 * 256 ? 255 :
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grad >= 2 * 256 && grad < 4 * 256 ? 0 :
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grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
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*(p++) =
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grad >= 4 * 256 ? 0 :
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grad >= 1 * 256 && grad < 3 * 256 ? 255 :
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grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
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*(p++) =
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grad < 2 * 256 ? 0 :
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grad >= 3 * 256 && grad < 5 * 256 ? 255 :
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grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
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grad += dgrad;
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rgrad += drgrad;
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if (rgrad >= GRADIENT_SIZE) {
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grad++;
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rgrad -= GRADIENT_SIZE;
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}
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if (grad >= GRADIENT_SIZE)
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grad -= GRADIENT_SIZE;
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}
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for (y = height / 8; y > 0; y--) {
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memcpy(p, p - picref->linesize[0], 3 * width);
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p += picref->linesize[0];
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}
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/* draw digits */
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seg_size = width / 80;
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if (seg_size >= 1 && height >= 13 * seg_size) {
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second = test->nb_frame * test->time_base.num / test->time_base.den;
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x = width - (width - seg_size * 64) / 2;
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y = (height - seg_size * 13) / 2;
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p = data + (x*3 + y * picref->linesize[0]);
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for (i = 0; i < 8; i++) {
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p -= 3 * 8 * seg_size;
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draw_digit(second % 10, p, picref->linesize[0], seg_size);
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second /= 10;
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if (second == 0)
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break;
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}
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}
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}
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static av_cold int test_init(AVFilterContext *ctx, const char *args)
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{
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TestSourceContext *test = ctx->priv;
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test->class = &testsrc_class;
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test->fill_picture_fn = test_fill_picture;
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return init_common(ctx, args);
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}
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static int test_query_formats(AVFilterContext *ctx)
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{
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
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};
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ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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return 0;
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}
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static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.request_frame = request_frame,
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.config_props = config_props,
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},
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{ NULL }
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};
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AVFilter avfilter_vsrc_testsrc = {
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.name = "testsrc",
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.description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
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.priv_size = sizeof(TestSourceContext),
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.init = test_init,
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.query_formats = test_query_formats,
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.inputs = NULL,
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.outputs = avfilter_vsrc_testsrc_outputs,
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};
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#endif /* CONFIG_TESTSRC_FILTER */
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#if CONFIG_RGBTESTSRC_FILTER
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static const char *rgbtestsrc_get_name(void *ctx)
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{
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return "rgbtestsrc";
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}
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static const AVClass rgbtestsrc_class = {
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.class_name = "RGBTestSourceContext",
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.item_name = rgbtestsrc_get_name,
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.option = testsrc_options,
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};
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#define R 0
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#define G 1
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#define B 2
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#define A 3
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static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
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int x, int y, int r, int g, int b, enum AVPixelFormat fmt,
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int rgba_map[4])
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{
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int32_t v;
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uint8_t *p;
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switch (fmt) {
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case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
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case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
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case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
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case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
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case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
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case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
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case AV_PIX_FMT_RGB24:
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case AV_PIX_FMT_BGR24:
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v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
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p = dst + 3*x + y*dst_linesize;
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AV_WL24(p, v);
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break;
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case AV_PIX_FMT_RGBA:
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case AV_PIX_FMT_BGRA:
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case AV_PIX_FMT_ARGB:
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case AV_PIX_FMT_ABGR:
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v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
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p = dst + 4*x + y*dst_linesize;
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AV_WL32(p, v);
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break;
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}
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}
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static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
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{
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TestSourceContext *test = ctx->priv;
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int x, y, w = picref->video->w, h = picref->video->h;
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for (y = 0; y < h; y++) {
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for (x = 0; x < picref->video->w; x++) {
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int c = 256*x/w;
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int r = 0, g = 0, b = 0;
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if (3*y < h ) r = c;
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else if (3*y < 2*h) g = c;
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else b = c;
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rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
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ctx->outputs[0]->format, test->rgba_map);
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}
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}
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}
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static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args)
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{
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TestSourceContext *test = ctx->priv;
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test->class = &rgbtestsrc_class;
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test->fill_picture_fn = rgbtest_fill_picture;
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return init_common(ctx, args);
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}
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static int rgbtest_query_formats(AVFilterContext *ctx)
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{
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_RGBA, AV_PIX_FMT_ARGB, AV_PIX_FMT_BGRA, AV_PIX_FMT_ABGR,
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AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB24,
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AV_PIX_FMT_RGB444, AV_PIX_FMT_BGR444,
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AV_PIX_FMT_RGB565, AV_PIX_FMT_BGR565,
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AV_PIX_FMT_RGB555, AV_PIX_FMT_BGR555,
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AV_PIX_FMT_NONE
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};
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ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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return 0;
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}
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|
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static int rgbtest_config_props(AVFilterLink *outlink)
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|
{
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TestSourceContext *test = outlink->src->priv;
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|
|
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switch (outlink->format) {
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case AV_PIX_FMT_ARGB: test->rgba_map[A] = 0; test->rgba_map[R] = 1; test->rgba_map[G] = 2; test->rgba_map[B] = 3; break;
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case AV_PIX_FMT_ABGR: test->rgba_map[A] = 0; test->rgba_map[B] = 1; test->rgba_map[G] = 2; test->rgba_map[R] = 3; break;
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|
case AV_PIX_FMT_RGBA:
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case AV_PIX_FMT_RGB24: test->rgba_map[R] = 0; test->rgba_map[G] = 1; test->rgba_map[B] = 2; test->rgba_map[A] = 3; break;
|
|
case AV_PIX_FMT_BGRA:
|
|
case AV_PIX_FMT_BGR24: test->rgba_map[B] = 0; test->rgba_map[G] = 1; test->rgba_map[R] = 2; test->rgba_map[A] = 3; break;
|
|
}
|
|
|
|
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,
|
|
|
|
.query_formats = rgbtest_query_formats,
|
|
|
|
.inputs = NULL,
|
|
|
|
.outputs = avfilter_vsrc_rgbtestsrc_outputs,
|
|
};
|
|
|
|
#endif /* CONFIG_RGBTESTSRC_FILTER */
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