| /* |
| * 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(lrint(sum)); |
| } |
| } |
| } |
| |
| 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 = hypot(x-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 = AV_CEIL_RSHIFT(w, test->hsub), ch = AV_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, |
| }; |
