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Diffstat (limited to 'libavfilter/vsrc_mptestsrc.c')
| -rw-r--r-- | libavfilter/vsrc_mptestsrc.c | 392 |
1 files changed, 392 insertions, 0 deletions
diff --git a/libavfilter/vsrc_mptestsrc.c b/libavfilter/vsrc_mptestsrc.c new file mode 100644 index 0000000000..074bf9441f --- /dev/null +++ b/libavfilter/vsrc_mptestsrc.c @@ -0,0 +1,392 @@ +/* + * 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" + +#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; + unsigned int frame_nb; + AVRational time_base; + int64_t pts, max_pts; + int hsub, vsub; + char *size, *rate, *duration; + enum test_type test; +} MPTestContext; + +#define OFFSET(x) offsetof(MPTestContext, x) + +static const AVOption mptestsrc_options[]= { + { "rate", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, 0, 0 }, + { "r", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, 0, 0 }, + { "duration", "set video duration", OFFSET(duration), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0 }, + { "d", "set video duration", OFFSET(duration), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0 }, + + { "test", "set test to perform", OFFSET(test), FF_OPT_TYPE_INT, {.dbl=TEST_ALL}, 0, INT_MAX, 0, "test" }, + { "t", "set test to perform", OFFSET(test), FF_OPT_TYPE_INT, {.dbl=TEST_ALL}, 0, INT_MAX, 0, "test" }, + { "dc_luma", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_DC_LUMA}, INT_MIN, INT_MAX, 0, "test" }, + { "dc_chroma", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_DC_CHROMA}, INT_MIN, INT_MAX, 0, "test" }, + { "freq_luma", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_FREQ_LUMA}, INT_MIN, INT_MAX, 0, "test" }, + { "freq_chroma", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_FREQ_CHROMA}, INT_MIN, INT_MAX, 0, "test" }, + { "amp_luma", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_AMP_LUMA}, INT_MIN, INT_MAX, 0, "test" }, + { "amp_chroma", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_AMP_CHROMA}, INT_MIN, INT_MAX, 0, "test" }, + { "cbp", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_CBP}, INT_MIN, INT_MAX, 0, "test" }, + { "mv", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_MV}, INT_MIN, INT_MAX, 0, "test" }, + { "ring1", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_RING1}, INT_MIN, INT_MAX, 0, "test" }, + { "ring2", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_RING2}, INT_MIN, INT_MAX, 0, "test" }, + { "all", "", 0, FF_OPT_TYPE_CONST, {.dbl=TEST_ALL}, INT_MIN, INT_MAX, 0, "test" }, + + { NULL }, +}; + +static const char *mptestsrc_get_name(void *ctx) +{ + return "mptestsrc"; +} + +static const AVClass mptestsrc_class = { + "MPTestContext", + mptestsrc_get_name, + mptestsrc_options +}; + +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((int)floor(sum+0.5), 0, 255); + } + } +} + +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, const char *args, void *opaque) +{ + MPTestContext *test = ctx->priv; + AVRational frame_rate_q; + int64_t duration = -1; + int ret; + + test->class = &mptestsrc_class; + av_opt_set_defaults(test); + + if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) { + av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args); + return ret; + } + + if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 || + frame_rate_q.den <= 0 || frame_rate_q.num <= 0) { + av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->rate); + return ret; + } + + if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) { + av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration); + return ret; + } + + test->time_base.num = frame_rate_q.den; + test->time_base.den = frame_rate_q.num; + test->max_pts = duration >= 0 ? + av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1; + test->frame_nb = 0; + test->pts = 0; + + av_log(ctx, AV_LOG_INFO, "rate:%d/%d duration:%f\n", + frame_rate_q.num, frame_rate_q.den, + duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base)); + 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_descriptors[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 = test->time_base; + + return 0; +} + +static int query_formats(AVFilterContext *ctx) +{ + static const enum PixelFormat pix_fmts[] = { + PIX_FMT_YUV420P, PIX_FMT_NONE + }; + + avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts)); + return 0; +} + +static int request_frame(AVFilterLink *outlink) +{ + MPTestContext *test = outlink->src->priv; + AVFilterBufferRef *picref; + int w = WIDTH, h = HEIGHT, ch = h>>test->vsub; + unsigned int frame = test->frame_nb; + enum test_type tt = test->test; + + if (test->max_pts >= 0 && test->pts > test->max_pts) + return AVERROR_EOF; + picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE, w, h); + picref->pts = test->pts++; + + // clean image + memset(picref->data[0], 0, picref->linesize[0] * h); + memset(picref->data[1], 128, picref->linesize[1] * ch); + memset(picref->data[2], 128, picref->linesize[2] * ch); + + 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; + } + + test->frame_nb++; + + avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0)); + avfilter_draw_slice(outlink, 0, picref->video->h, 1); + avfilter_end_frame(outlink); + avfilter_unref_buffer(picref); + + return 0; +} + +AVFilter avfilter_vsrc_mptestsrc = { + .name = "mptestsrc", + .description = NULL_IF_CONFIG_SMALL("Generate various test pattern."), + .priv_size = sizeof(MPTestContext), + .init = init, + + .query_formats = query_formats, + + .inputs = (AVFilterPad[]) {{ .name = NULL}}, + + .outputs = (AVFilterPad[]) {{ .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_props, + .request_frame = request_frame, + .config_props = config_props, }, + { .name = NULL }}, +}; |