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Diffstat (limited to 'libavfilter/vsrc_mptestsrc.c')
-rw-r--r--libavfilter/vsrc_mptestsrc.c363
1 files changed, 363 insertions, 0 deletions
diff --git a/libavfilter/vsrc_mptestsrc.c b/libavfilter/vsrc_mptestsrc.c
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+/*
+ * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/**
+ * @file
+ * MP test source, ported from MPlayer libmpcodecs/vf_test.c
+ */
+
+#include "libavutil/avstring.h"
+#include "libavutil/opt.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/pixdesc.h"
+#include "avfilter.h"
+#include "internal.h"
+#include "formats.h"
+#include "video.h"
+
+#define WIDTH 512
+#define HEIGHT 512
+
+enum test_type {
+ TEST_DC_LUMA,
+ TEST_DC_CHROMA,
+ TEST_FREQ_LUMA,
+ TEST_FREQ_CHROMA,
+ TEST_AMP_LUMA,
+ TEST_AMP_CHROMA,
+ TEST_CBP,
+ TEST_MV,
+ TEST_RING1,
+ TEST_RING2,
+ TEST_ALL,
+ TEST_NB
+};
+
+typedef struct MPTestContext {
+ const AVClass *class;
+ AVRational frame_rate;
+ int64_t pts, max_pts, duration;
+ int hsub, vsub;
+ int test; ///< test_type
+} MPTestContext;
+
+#define OFFSET(x) offsetof(MPTestContext, x)
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption mptestsrc_options[]= {
+ { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },
+ { "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },
+ { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },
+ { "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },
+
+ { "test", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" },
+ { "t", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" },
+ { "dc_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "dc_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "freq_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "freq_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "amp_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "amp_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "cbp", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_CBP}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "mv", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_MV}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "ring1", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING1}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "ring2", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING2}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { "all", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_ALL}, INT_MIN, INT_MAX, FLAGS, "test" },
+ { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(mptestsrc);
+
+static double c[64];
+
+static void init_idct(void)
+{
+ int i, j;
+
+ for (i = 0; i < 8; i++) {
+ double s = i == 0 ? sqrt(0.125) : 0.5;
+
+ for (j = 0; j < 8; j++)
+ c[i*8+j] = s*cos((M_PI/8.0)*i*(j+0.5));
+ }
+}
+
+static void idct(uint8_t *dst, int dst_linesize, int src[64])
+{
+ int i, j, k;
+ double tmp[64];
+
+ for (i = 0; i < 8; i++) {
+ for (j = 0; j < 8; j++) {
+ double sum = 0.0;
+
+ for (k = 0; k < 8; k++)
+ sum += c[k*8+j] * src[8*i+k];
+
+ tmp[8*i+j] = sum;
+ }
+ }
+
+ for (j = 0; j < 8; j++) {
+ for (i = 0; i < 8; i++) {
+ double sum = 0.0;
+
+ for (k = 0; k < 8; k++)
+ sum += c[k*8+i]*tmp[8*k+j];
+
+ dst[dst_linesize*i + j] = av_clip_uint8((int)floor(sum+0.5));
+ }
+ }
+}
+
+static void draw_dc(uint8_t *dst, int dst_linesize, int color, int w, int h)
+{
+ int x, y;
+
+ for (y = 0; y < h; y++)
+ for (x = 0; x < w; x++)
+ dst[x + y*dst_linesize] = color;
+}
+
+static void draw_basis(uint8_t *dst, int dst_linesize, int amp, int freq, int dc)
+{
+ int src[64];
+
+ memset(src, 0, 64*sizeof(int));
+ src[0] = dc;
+ if (amp)
+ src[freq] = amp;
+ idct(dst, dst_linesize, src);
+}
+
+static void draw_cbp(uint8_t *dst[3], int dst_linesize[3], int cbp, int amp, int dc)
+{
+ if (cbp&1) draw_basis(dst[0] , dst_linesize[0], amp, 1, dc);
+ if (cbp&2) draw_basis(dst[0]+8 , dst_linesize[0], amp, 1, dc);
+ if (cbp&4) draw_basis(dst[0]+ 8*dst_linesize[0], dst_linesize[0], amp, 1, dc);
+ if (cbp&8) draw_basis(dst[0]+8+8*dst_linesize[0], dst_linesize[0], amp, 1, dc);
+ if (cbp&16) draw_basis(dst[1] , dst_linesize[1], amp, 1, dc);
+ if (cbp&32) draw_basis(dst[2] , dst_linesize[2], amp, 1, dc);
+}
+
+static void dc_test(uint8_t *dst, int dst_linesize, int w, int h, int off)
+{
+ const int step = FFMAX(256/(w*h/256), 1);
+ int x, y, color = off;
+
+ for (y = 0; y < h; y += 16) {
+ for (x = 0; x < w; x += 16) {
+ draw_dc(dst + x + y*dst_linesize, dst_linesize, color, 8, 8);
+ color += step;
+ }
+ }
+}
+
+static void freq_test(uint8_t *dst, int dst_linesize, int off)
+{
+ int x, y, freq = 0;
+
+ for (y = 0; y < 8*16; y += 16) {
+ for (x = 0; x < 8*16; x += 16) {
+ draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*(96+off), freq, 128*8);
+ freq++;
+ }
+ }
+}
+
+static void amp_test(uint8_t *dst, int dst_linesize, int off)
+{
+ int x, y, amp = off;
+
+ for (y = 0; y < 16*16; y += 16) {
+ for (x = 0; x < 16*16; x += 16) {
+ draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*amp, 1, 128*8);
+ amp++;
+ }
+ }
+}
+
+static void cbp_test(uint8_t *dst[3], int dst_linesize[3], int off)
+{
+ int x, y, cbp = 0;
+
+ for (y = 0; y < 16*8; y += 16) {
+ for (x = 0; x < 16*8; x += 16) {
+ uint8_t *dst1[3];
+ dst1[0] = dst[0] + x*2 + y*2*dst_linesize[0];
+ dst1[1] = dst[1] + x + y* dst_linesize[1];
+ dst1[2] = dst[2] + x + y* dst_linesize[2];
+
+ draw_cbp(dst1, dst_linesize, cbp, (64+off)*4, 128*8);
+ cbp++;
+ }
+ }
+}
+
+static void mv_test(uint8_t *dst, int dst_linesize, int off)
+{
+ int x, y;
+
+ for (y = 0; y < 16*16; y++) {
+ if (y&16)
+ continue;
+ for (x = 0; x < 16*16; x++)
+ dst[x + y*dst_linesize] = x + off*8/(y/32+1);
+ }
+}
+
+static void ring1_test(uint8_t *dst, int dst_linesize, int off)
+{
+ int x, y, color = 0;
+
+ for (y = off; y < 16*16; y += 16) {
+ for (x = off; x < 16*16; x += 16) {
+ draw_dc(dst + x + y*dst_linesize, dst_linesize, ((x+y)&16) ? color : -color, 16, 16);
+ color++;
+ }
+ }
+}
+
+static void ring2_test(uint8_t *dst, int dst_linesize, int off)
+{
+ int x, y;
+
+ for (y = 0; y < 16*16; y++) {
+ for (x = 0; x < 16*16; x++) {
+ double d = sqrt((x-8*16)*(x-8*16) + (y-8*16)*(y-8*16));
+ double r = d/20 - (int)(d/20);
+ if (r < off/30.0) {
+ dst[x + y*dst_linesize] = 255;
+ dst[x + y*dst_linesize+256] = 0;
+ } else {
+ dst[x + y*dst_linesize] = x;
+ dst[x + y*dst_linesize+256] = x;
+ }
+ }
+ }
+}
+
+static av_cold int init(AVFilterContext *ctx)
+{
+ MPTestContext *test = ctx->priv;
+
+ test->max_pts = test->duration >= 0 ?
+ av_rescale_q(test->duration, AV_TIME_BASE_Q, av_inv_q(test->frame_rate)) : -1;
+ test->pts = 0;
+
+ av_log(ctx, AV_LOG_VERBOSE, "rate:%d/%d duration:%f\n",
+ test->frame_rate.num, test->frame_rate.den,
+ test->duration < 0 ? -1 : test->max_pts * av_q2d(av_inv_q(test->frame_rate)));
+ init_idct();
+
+ return 0;
+}
+
+static int config_props(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ MPTestContext *test = ctx->priv;
+ const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(outlink->format);
+
+ test->hsub = pix_desc->log2_chroma_w;
+ test->vsub = pix_desc->log2_chroma_h;
+
+ outlink->w = WIDTH;
+ outlink->h = HEIGHT;
+ outlink->time_base = av_inv_q(test->frame_rate);
+
+ return 0;
+}
+
+static int query_formats(AVFilterContext *ctx)
+{
+ static const enum AVPixelFormat pix_fmts[] = {
+ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
+ };
+
+ AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
+ if (!fmts_list)
+ return AVERROR(ENOMEM);
+ return ff_set_common_formats(ctx, fmts_list);
+}
+
+static int request_frame(AVFilterLink *outlink)
+{
+ MPTestContext *test = outlink->src->priv;
+ AVFrame *picref;
+ int w = WIDTH, h = HEIGHT,
+ cw = FF_CEIL_RSHIFT(w, test->hsub), ch = FF_CEIL_RSHIFT(h, test->vsub);
+ unsigned int frame = outlink->frame_count;
+ enum test_type tt = test->test;
+ int i;
+
+ if (test->max_pts >= 0 && test->pts > test->max_pts)
+ return AVERROR_EOF;
+ picref = ff_get_video_buffer(outlink, w, h);
+ if (!picref)
+ return AVERROR(ENOMEM);
+ picref->pts = test->pts++;
+
+ // clean image
+ for (i = 0; i < h; i++)
+ memset(picref->data[0] + i*picref->linesize[0], 0, w);
+ for (i = 0; i < ch; i++) {
+ memset(picref->data[1] + i*picref->linesize[1], 128, cw);
+ memset(picref->data[2] + i*picref->linesize[2], 128, cw);
+ }
+
+ if (tt == TEST_ALL && frame%30) /* draw a black frame at the beginning of each test */
+ tt = (frame/30)%(TEST_NB-1);
+
+ switch (tt) {
+ case TEST_DC_LUMA: dc_test(picref->data[0], picref->linesize[0], 256, 256, frame%30); break;
+ case TEST_DC_CHROMA: dc_test(picref->data[1], picref->linesize[1], 256, 256, frame%30); break;
+ case TEST_FREQ_LUMA: freq_test(picref->data[0], picref->linesize[0], frame%30); break;
+ case TEST_FREQ_CHROMA: freq_test(picref->data[1], picref->linesize[1], frame%30); break;
+ case TEST_AMP_LUMA: amp_test(picref->data[0], picref->linesize[0], frame%30); break;
+ case TEST_AMP_CHROMA: amp_test(picref->data[1], picref->linesize[1], frame%30); break;
+ case TEST_CBP: cbp_test(picref->data , picref->linesize , frame%30); break;
+ case TEST_MV: mv_test(picref->data[0], picref->linesize[0], frame%30); break;
+ case TEST_RING1: ring1_test(picref->data[0], picref->linesize[0], frame%30); break;
+ case TEST_RING2: ring2_test(picref->data[0], picref->linesize[0], frame%30); break;
+ }
+
+ return ff_filter_frame(outlink, picref);
+}
+
+static const AVFilterPad mptestsrc_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .request_frame = request_frame,
+ .config_props = config_props,
+ },
+ { NULL }
+};
+
+AVFilter ff_vsrc_mptestsrc = {
+ .name = "mptestsrc",
+ .description = NULL_IF_CONFIG_SMALL("Generate various test pattern."),
+ .priv_size = sizeof(MPTestContext),
+ .priv_class = &mptestsrc_class,
+ .init = init,
+ .query_formats = query_formats,
+ .inputs = NULL,
+ .outputs = mptestsrc_outputs,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-04 03:13:56 +0000