385 lines
12 KiB
C
385 lines
12 KiB
C
/*
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* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* FFmpeg 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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* 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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* MP test source, ported from MPlayer libmpcodecs/vf_test.c
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*/
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#include "libavutil/avstring.h"
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#include "libavutil/opt.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "formats.h"
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#include "video.h"
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#define WIDTH 512
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#define HEIGHT 512
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enum test_type {
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TEST_DC_LUMA,
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TEST_DC_CHROMA,
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TEST_FREQ_LUMA,
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TEST_FREQ_CHROMA,
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TEST_AMP_LUMA,
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TEST_AMP_CHROMA,
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TEST_CBP,
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TEST_MV,
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TEST_RING1,
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TEST_RING2,
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TEST_ALL,
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TEST_NB
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};
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typedef struct MPTestContext {
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const AVClass *class;
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unsigned int frame_nb;
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AVRational time_base;
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int64_t pts, max_pts;
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int hsub, vsub;
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char *size, *rate, *duration;
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enum test_type test;
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} MPTestContext;
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#define OFFSET(x) offsetof(MPTestContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption mptestsrc_options[]= {
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{ "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS },
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{ "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS },
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{ "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
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{ "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
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{ "test", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" },
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{ "t", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" },
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{ "dc_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "dc_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "freq_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "freq_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "amp_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "amp_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "cbp", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_CBP}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "mv", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_MV}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "ring1", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING1}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "ring2", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING2}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ "all", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_ALL}, INT_MIN, INT_MAX, FLAGS, "test" },
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{ NULL },
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};
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AVFILTER_DEFINE_CLASS(mptestsrc);
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static double c[64];
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static void init_idct(void)
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{
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int i, j;
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for (i = 0; i < 8; i++) {
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double s = i == 0 ? sqrt(0.125) : 0.5;
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for (j = 0; j < 8; j++)
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c[i*8+j] = s*cos((M_PI/8.0)*i*(j+0.5));
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}
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}
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static void idct(uint8_t *dst, int dst_linesize, int src[64])
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{
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int i, j, k;
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double tmp[64];
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for (i = 0; i < 8; i++) {
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for (j = 0; j < 8; j++) {
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double sum = 0.0;
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for (k = 0; k < 8; k++)
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sum += c[k*8+j] * src[8*i+k];
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tmp[8*i+j] = sum;
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}
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}
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for (j = 0; j < 8; j++) {
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for (i = 0; i < 8; i++) {
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double sum = 0.0;
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for (k = 0; k < 8; k++)
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sum += c[k*8+i]*tmp[8*k+j];
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dst[dst_linesize*i + j] = av_clip((int)floor(sum+0.5), 0, 255);
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}
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}
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}
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static void draw_dc(uint8_t *dst, int dst_linesize, int color, int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++)
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for (x = 0; x < w; x++)
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dst[x + y*dst_linesize] = color;
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}
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static void draw_basis(uint8_t *dst, int dst_linesize, int amp, int freq, int dc)
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{
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int src[64];
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memset(src, 0, 64*sizeof(int));
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src[0] = dc;
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if (amp)
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src[freq] = amp;
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idct(dst, dst_linesize, src);
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}
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static void draw_cbp(uint8_t *dst[3], int dst_linesize[3], int cbp, int amp, int dc)
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{
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if (cbp&1) draw_basis(dst[0] , dst_linesize[0], amp, 1, dc);
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if (cbp&2) draw_basis(dst[0]+8 , dst_linesize[0], amp, 1, dc);
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if (cbp&4) draw_basis(dst[0]+ 8*dst_linesize[0], dst_linesize[0], amp, 1, dc);
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if (cbp&8) draw_basis(dst[0]+8+8*dst_linesize[0], dst_linesize[0], amp, 1, dc);
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if (cbp&16) draw_basis(dst[1] , dst_linesize[1], amp, 1, dc);
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if (cbp&32) draw_basis(dst[2] , dst_linesize[2], amp, 1, dc);
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}
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static void dc_test(uint8_t *dst, int dst_linesize, int w, int h, int off)
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{
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const int step = FFMAX(256/(w*h/256), 1);
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int x, y, color = off;
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for (y = 0; y < h; y += 16) {
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for (x = 0; x < w; x += 16) {
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draw_dc(dst + x + y*dst_linesize, dst_linesize, color, 8, 8);
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color += step;
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}
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}
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}
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static void freq_test(uint8_t *dst, int dst_linesize, int off)
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{
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int x, y, freq = 0;
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for (y = 0; y < 8*16; y += 16) {
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for (x = 0; x < 8*16; x += 16) {
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draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*(96+off), freq, 128*8);
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freq++;
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}
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}
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}
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static void amp_test(uint8_t *dst, int dst_linesize, int off)
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{
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int x, y, amp = off;
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for (y = 0; y < 16*16; y += 16) {
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for (x = 0; x < 16*16; x += 16) {
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draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*amp, 1, 128*8);
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amp++;
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}
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}
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}
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static void cbp_test(uint8_t *dst[3], int dst_linesize[3], int off)
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{
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int x, y, cbp = 0;
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for (y = 0; y < 16*8; y += 16) {
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for (x = 0; x < 16*8; x += 16) {
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uint8_t *dst1[3];
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dst1[0] = dst[0] + x*2 + y*2*dst_linesize[0];
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dst1[1] = dst[1] + x + y* dst_linesize[1];
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dst1[2] = dst[2] + x + y* dst_linesize[2];
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draw_cbp(dst1, dst_linesize, cbp, (64+off)*4, 128*8);
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cbp++;
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}
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}
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}
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static void mv_test(uint8_t *dst, int dst_linesize, int off)
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{
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int x, y;
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for (y = 0; y < 16*16; y++) {
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if (y&16)
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continue;
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for (x = 0; x < 16*16; x++)
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dst[x + y*dst_linesize] = x + off*8/(y/32+1);
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}
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}
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static void ring1_test(uint8_t *dst, int dst_linesize, int off)
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{
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int x, y, color = 0;
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for (y = off; y < 16*16; y += 16) {
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for (x = off; x < 16*16; x += 16) {
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draw_dc(dst + x + y*dst_linesize, dst_linesize, ((x+y)&16) ? color : -color, 16, 16);
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color++;
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}
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}
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}
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static void ring2_test(uint8_t *dst, int dst_linesize, int off)
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{
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int x, y;
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for (y = 0; y < 16*16; y++) {
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for (x = 0; x < 16*16; x++) {
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double d = sqrt((x-8*16)*(x-8*16) + (y-8*16)*(y-8*16));
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double r = d/20 - (int)(d/20);
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if (r < off/30.0) {
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dst[x + y*dst_linesize] = 255;
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dst[x + y*dst_linesize+256] = 0;
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} else {
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dst[x + y*dst_linesize] = x;
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dst[x + y*dst_linesize+256] = x;
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}
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}
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}
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}
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static av_cold int init(AVFilterContext *ctx, const char *args)
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{
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MPTestContext *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;
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test->class = &mptestsrc_class;
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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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return ret;
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if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 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->frame_nb = 0;
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test->pts = 0;
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av_log(ctx, AV_LOG_VERBOSE, "rate:%d/%d duration:%f\n",
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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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init_idct();
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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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AVFilterContext *ctx = outlink->src;
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MPTestContext *test = ctx->priv;
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const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(outlink->format);
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test->hsub = pix_desc->log2_chroma_w;
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test->vsub = pix_desc->log2_chroma_h;
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outlink->w = WIDTH;
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outlink->h = HEIGHT;
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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 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_YUV420P, 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 int request_frame(AVFilterLink *outlink)
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{
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MPTestContext *test = outlink->src->priv;
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AVFilterBufferRef *picref;
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int w = WIDTH, h = HEIGHT, ch = h>>test->vsub;
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unsigned int frame = test->frame_nb;
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enum test_type tt = test->test;
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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, w, h);
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picref->pts = test->pts++;
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// clean image
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memset(picref->data[0], 0, picref->linesize[0] * h);
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memset(picref->data[1], 128, picref->linesize[1] * ch);
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memset(picref->data[2], 128, picref->linesize[2] * ch);
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if (tt == TEST_ALL && frame%30) /* draw a black frame at the beginning of each test */
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tt = (frame/30)%(TEST_NB-1);
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switch (tt) {
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case TEST_DC_LUMA: dc_test(picref->data[0], picref->linesize[0], 256, 256, frame%30); break;
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case TEST_DC_CHROMA: dc_test(picref->data[1], picref->linesize[1], 256, 256, frame%30); break;
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case TEST_FREQ_LUMA: freq_test(picref->data[0], picref->linesize[0], frame%30); break;
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case TEST_FREQ_CHROMA: freq_test(picref->data[1], picref->linesize[1], frame%30); break;
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case TEST_AMP_LUMA: amp_test(picref->data[0], picref->linesize[0], frame%30); break;
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case TEST_AMP_CHROMA: amp_test(picref->data[1], picref->linesize[1], frame%30); break;
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case TEST_CBP: cbp_test(picref->data , picref->linesize , frame%30); break;
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case TEST_MV: mv_test(picref->data[0], picref->linesize[0], frame%30); break;
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case TEST_RING1: ring1_test(picref->data[0], picref->linesize[0], frame%30); break;
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case TEST_RING2: ring2_test(picref->data[0], picref->linesize[0], frame%30); break;
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}
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test->frame_nb++;
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ff_filter_frame(outlink, picref);
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return 0;
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}
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static const AVFilterPad mptestsrc_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_mptestsrc = {
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.name = "mptestsrc",
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.description = NULL_IF_CONFIG_SMALL("Generate various test pattern."),
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.priv_size = sizeof(MPTestContext),
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.init = init,
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.query_formats = query_formats,
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.inputs = NULL,
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.outputs = mptestsrc_outputs,
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.priv_class = &mptestsrc_class,
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};
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