a5e8c41c28
It is not used in any filters currently and is inherently evil. If passing binary data to filters is required in the future, it should be done with some AVOptions-based system.
502 lines
17 KiB
C
502 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/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), FF_OPT_TYPE_STRING, {.str = "320x240"}},
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{ "s", "set video size", OFFSET(size), FF_OPT_TYPE_STRING, {.str = "320x240"}},
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{ "rate", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, },
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{ "r", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, },
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{ "duration", "set video duration", OFFSET(duration), FF_OPT_TYPE_STRING, {.str = NULL}, },
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{ "sar", "set video sample aspect ratio", OFFSET(sar), FF_OPT_TYPE_RATIONAL, {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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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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ff_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
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ff_draw_slice(outlink, 0, picref->video->h, 1);
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ff_end_frame(outlink);
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avfilter_unref_buffer(picref);
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return 0;
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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 PixelFormat pix_fmts[] = {
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PIX_FMT_RGB24, 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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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 = (AVFilterPad[]) {{ .name = NULL}},
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.outputs = (AVFilterPad[]) {{ .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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{ .name = NULL }},
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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 PixelFormat 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 PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
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case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
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case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
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case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
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case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
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case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
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case PIX_FMT_RGB24:
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case 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 PIX_FMT_RGBA:
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case PIX_FMT_BGRA:
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case PIX_FMT_ARGB:
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case 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;
|
|
return init_common(ctx, args);
|
|
}
|
|
|
|
static int rgbtest_query_formats(AVFilterContext *ctx)
|
|
{
|
|
static const enum PixelFormat pix_fmts[] = {
|
|
PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR,
|
|
PIX_FMT_BGR24, PIX_FMT_RGB24,
|
|
PIX_FMT_RGB444, PIX_FMT_BGR444,
|
|
PIX_FMT_RGB565, PIX_FMT_BGR565,
|
|
PIX_FMT_RGB555, PIX_FMT_BGR555,
|
|
PIX_FMT_NONE
|
|
};
|
|
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
|
|
return 0;
|
|
}
|
|
|
|
static int rgbtest_config_props(AVFilterLink *outlink)
|
|
{
|
|
TestSourceContext *test = outlink->src->priv;
|
|
|
|
switch (outlink->format) {
|
|
case PIX_FMT_ARGB: test->rgba_map[A] = 0; test->rgba_map[R] = 1; test->rgba_map[G] = 2; test->rgba_map[B] = 3; break;
|
|
case PIX_FMT_ABGR: test->rgba_map[A] = 0; test->rgba_map[B] = 1; test->rgba_map[G] = 2; test->rgba_map[R] = 3; break;
|
|
case PIX_FMT_RGBA:
|
|
case 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 PIX_FMT_BGRA:
|
|
case 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);
|
|
}
|
|
|
|
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 = (AVFilterPad[]) {{ .name = NULL}},
|
|
|
|
.outputs = (AVFilterPad[]) {{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.request_frame = request_frame,
|
|
.config_props = rgbtest_config_props, },
|
|
{ .name = NULL }},
|
|
};
|
|
|
|
#endif /* CONFIG_RGBTESTSRC_FILTER */
|