404 lines
14 KiB
C
404 lines
14 KiB
C
/*
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* Copyright (c) 2017-2022 Paul B Mahol
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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
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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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* 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 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 FFmpeg; 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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#include "libavutil/avassert.h"
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#include "libavutil/common.h"
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#include "libavutil/channel_layout.h"
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#include "libavutil/ffmath.h"
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#include "libavutil/opt.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/timestamp.h"
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#include "libavutil/xga_font_data.h"
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#include "avfilter.h"
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#include "drawutils.h"
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#include "filters.h"
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#include "formats.h"
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#include "internal.h"
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#include "audio.h"
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#include "video.h"
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typedef struct AVSyncTestContext {
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const AVClass *class;
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int w, h;
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AVRational frame_rate;
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int sample_rate;
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int64_t duration;
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int64_t apts, vpts;
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float amplitude;
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int period;
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int delay;
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int cycle;
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int beep;
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int beep_duration;
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int flash;
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int dir;
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AVRational vdelay, delay_max, delay_min;
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AVRational delay_range;
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int64_t prev_intpart;
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uint8_t rgba[3][4];
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FFDrawContext draw;
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FFDrawColor fg;
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FFDrawColor bg;
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FFDrawColor ag;
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} AVSyncTestContext;
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#define OFFSET(x) offsetof(AVSyncTestContext, x)
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#define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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#define V AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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static const AVOption avsynctest_options[] = {
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{"size", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, V },
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{"s", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, V },
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{"framerate", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="30"}, 0,INT_MAX, V },
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{"fr", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="30"}, 0,INT_MAX, V },
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{"samplerate", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64=44100},8000,384000, A },
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{"sr", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64=44100},8000,384000, A },
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{"amplitude", "set beep amplitude", OFFSET(amplitude), AV_OPT_TYPE_FLOAT, {.dbl=.7}, 0., 1., A },
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{"a", "set beep amplitude", OFFSET(amplitude), AV_OPT_TYPE_FLOAT, {.dbl=.7}, 0., 1., A },
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{"period", "set beep period", OFFSET(period), AV_OPT_TYPE_INT, {.i64=3}, 1, 99., A },
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{"p", "set beep period", OFFSET(period), AV_OPT_TYPE_INT, {.i64=3}, 1, 99., A },
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{"delay", "set flash delay", OFFSET(delay), AV_OPT_TYPE_INT, {.i64=0}, -30, 30, V },
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{"dl", "set flash delay", OFFSET(delay), AV_OPT_TYPE_INT, {.i64=0}, -30, 30, V },
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{"cycle", "set delay cycle", OFFSET(cycle), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, V },
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{"c", "set delay cycle", OFFSET(cycle), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, V },
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{"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=0}, 0, INT64_MAX, V|A },
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{"d", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=0}, 0, INT64_MAX, V|A },
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{"fg", "set foreground color", OFFSET(rgba[0]), AV_OPT_TYPE_COLOR, {.str="white"}, 0, 0, V },
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{"bg", "set background color", OFFSET(rgba[1]), AV_OPT_TYPE_COLOR, {.str="black"}, 0, 0, V },
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{"ag", "set additional color", OFFSET(rgba[2]), AV_OPT_TYPE_COLOR, {.str="gray"}, 0, 0, V },
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{NULL},
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};
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AVFILTER_DEFINE_CLASS(avsynctest);
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static av_cold int query_formats(AVFilterContext *ctx)
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{
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AVSyncTestContext *s = ctx->priv;
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AVFilterChannelLayouts *chlayout = NULL;
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int sample_rates[] = { s->sample_rate, -1 };
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static const enum AVSampleFormat sample_fmts[] = {
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AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_NONE
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};
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AVFilterFormats *formats;
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int ret;
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formats = ff_make_format_list(sample_fmts);
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if (!formats)
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return AVERROR(ENOMEM);
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if ((ret = ff_formats_ref(formats, &ctx->outputs[0]->incfg.formats)) < 0)
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return ret;
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formats = ff_draw_supported_pixel_formats(0);
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if (!formats)
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return AVERROR(ENOMEM);
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if ((ret = ff_formats_ref(formats, &ctx->outputs[1]->incfg.formats)) < 0)
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return ret;
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if ((ret = ff_add_channel_layout(&chlayout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_MONO)) < 0)
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return ret;
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ret = ff_set_common_channel_layouts(ctx, chlayout);
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if (ret < 0)
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return ret;
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formats = ff_make_format_list(sample_rates);
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if (!formats)
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return AVERROR(ENOMEM);
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return ff_set_common_samplerates(ctx, formats);
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}
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static av_cold int aconfig_props(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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AVSyncTestContext *s = ctx->priv;
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outlink->sample_rate = s->sample_rate;
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outlink->time_base = (AVRational){1, s->sample_rate};
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s->beep_duration = av_rescale(s->sample_rate, s->frame_rate.den, s->frame_rate.num);
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s->duration = av_rescale(s->duration, s->sample_rate, AV_TIME_BASE);
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return 0;
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}
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static av_cold int config_props(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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AVSyncTestContext *s = ctx->priv;
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outlink->w = s->w;
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outlink->h = s->h;
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outlink->time_base = av_inv_q(s->frame_rate);
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outlink->frame_rate = s->frame_rate;
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outlink->sample_aspect_ratio = (AVRational) {1, 1};
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s->delay_min = av_mul_q(s->frame_rate, av_make_q(-1, 2));
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s->delay_max = av_mul_q(s->delay_min, av_make_q(-1, 1));
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s->delay_range = av_sub_q(s->delay_max, s->delay_min);
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s->vdelay = av_make_q(s->delay, 1);
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s->dir = 1;
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s->prev_intpart = INT64_MIN;
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ff_draw_init(&s->draw, outlink->format, 0);
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ff_draw_color(&s->draw, &s->fg, s->rgba[0]);
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ff_draw_color(&s->draw, &s->bg, s->rgba[1]);
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ff_draw_color(&s->draw, &s->ag, s->rgba[2] );
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return 0;
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}
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#define FPI 0x8000
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static int32_t sin32(int32_t x, int shift)
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{
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const double pi = M_PI;
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const int32_t a = ((2.0 * pi) * (1 << 24));
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const int32_t b = (1 << 7) * (12.0 / pi - 1.0 - pi) * (1 << 24);
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const int32_t c = (1 << 9) * 3.0 * (2.0 + pi - 16.0 / pi) * (1 << 24);
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int64_t x2, result;
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int32_t t1, t2;
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x &= 2 * FPI - 1;
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if (x >= (3 * FPI / 2))
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x = x - 2 * FPI;
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else if (x > FPI / 2)
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x = FPI - x;
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x2 = x * x;
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t1 = (x2 * c) >> 32;
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t2 = ((b + t1) * x2) >> 32;
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x = x << 8;
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result = a + t2;
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result *= x;
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result += (1U << 31);
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result >>= (32 - shift);
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return result;
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}
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static int audio_frame(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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AVSyncTestContext *s = ctx->priv;
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const int a = lrintf(s->amplitude * 15);
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int64_t duration[2];
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int64_t delta;
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AVFrame *out;
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int32_t *dst;
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delta = av_rescale_q(s->vpts, av_make_q(s->sample_rate, 1), s->frame_rate) - s->apts;
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if (delta < 0)
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return 1;
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duration[0] = av_rescale_rnd(s->sample_rate, s->frame_rate.den, s->frame_rate.num, AV_ROUND_DOWN);
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duration[1] = av_rescale_rnd(s->sample_rate, s->frame_rate.den, s->frame_rate.num, AV_ROUND_UP);
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delta = duration[delta > 0];
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out = ff_get_audio_buffer(outlink, delta);
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if (!out)
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return AVERROR(ENOMEM);
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out->pts = s->apts;
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dst = (int32_t *)out->data[0];
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for (int i = 0; i < delta; i++) {
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if (((s->apts + i) % (s->period * s->sample_rate)) == 0)
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s->beep = 1;
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if (s->beep) {
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dst[i] = sin32(av_rescale_q(800LL * 2LL * FPI, outlink->time_base, av_make_q(1, s->apts + i)), a);
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s->beep++;
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} else {
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dst[i] = 0;
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}
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if (s->beep >= s->beep_duration) {
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s->beep = 0;
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}
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}
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s->apts += out->nb_samples;
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return ff_filter_frame(outlink, out);
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}
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static void draw_text(FFDrawContext *draw, AVFrame *out, FFDrawColor *color,
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int x0, int y0, const uint8_t *text)
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{
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int x = x0;
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for (; *text; text++) {
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if (*text == '\n') {
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x = x0;
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y0 += 8;
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continue;
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}
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ff_blend_mask(draw, color, out->data, out->linesize,
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out->width, out->height,
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avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
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x += 8;
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}
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}
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static int offset(int x, int num, int den)
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{
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return av_rescale_rnd(x, num, den, AV_ROUND_UP);
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}
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static int video_frame(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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AVSyncTestContext *s = ctx->priv;
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const int w = outlink->w;
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const int h = outlink->h;
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const int step = av_rescale_rnd(w, s->delay_range.den, s->delay_range.num, AV_ROUND_DOWN);
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char text[128];
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int new_offset;
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int64_t delta, temp, intpart;
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AVFrame *out;
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delta = av_rescale_q(s->apts, s->frame_rate, av_make_q(s->sample_rate, 1)) - s->vpts;
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if (delta < 0)
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return 1;
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out = ff_get_video_buffer(outlink, w, h);
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if (!out)
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return AVERROR(ENOMEM);
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ff_fill_rectangle(&s->draw, &s->bg, out->data, out->linesize, 0, 0, w, h);
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snprintf(text, sizeof(text), "FRN: %"PRId64"", s->vpts);
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draw_text(&s->draw, out, &s->fg, offset(w, 1, 10), offset(h, 1, 10), text);
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snprintf(text, sizeof(text), "SEC: %s", av_ts2timestr(s->vpts, &outlink->time_base));
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draw_text(&s->draw, out, &s->fg, offset(w, 1, 10), offset(h, 9, 10), text);
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snprintf(text, sizeof(text), "DLY: %d", s->vdelay.num);
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draw_text(&s->draw, out, &s->fg, offset(w, 9, 10) - strlen(text) * 8, offset(h, 9, 10), text);
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snprintf(text, sizeof(text), "FPS: %d/%d", s->frame_rate.num, s->frame_rate.den);
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draw_text(&s->draw, out, &s->fg, offset(w, 9, 10) - strlen(text) * 8, offset(h, 1, 10), text);
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snprintf(text, sizeof(text), "P: %d", s->period);
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draw_text(&s->draw, out, &s->ag, offset(w, 1, 2) - strlen(text) * 4, offset(h, 9, 10), text);
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snprintf(text, sizeof(text), "SR: %d", s->sample_rate);
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draw_text(&s->draw, out, &s->ag, offset(w, 1, 2) - strlen(text) * 4, offset(h, 1, 10), text);
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snprintf(text, sizeof(text), "A: %1.2f", s->amplitude);
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draw_text(&s->draw, out, &s->ag, offset(w, 1, 10), offset(h, 1, 2), text);
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snprintf(text, sizeof(text), "WxH: %dx%d", w, h);
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draw_text(&s->draw, out, &s->ag, offset(w, 9, 10) - strlen(text) * 8, offset(h, 1, 2), text);
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temp = s->vpts + s->vdelay.num;
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intpart = av_rescale_rnd(temp, outlink->time_base.num, outlink->time_base.den, AV_ROUND_NEAR_INF);
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intpart = temp - av_rescale_rnd(intpart, outlink->time_base.den, outlink->time_base.num, AV_ROUND_NEAR_INF);
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new_offset = offset(w, 1, 2);
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ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
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av_clip(new_offset + step * intpart, 0, w - 2),
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offset(h, 141, 200), offset(step, 2, 3), offset(h, 1, 25));
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if (intpart == 0 && s->prev_intpart != intpart) {
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if (s->flash >= s->period) {
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int result;
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if (s->cycle)
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s->vdelay = av_add_q(s->vdelay, av_make_q(s->dir, 1));
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result = av_cmp_q(s->vdelay, s->delay_max);
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if (result >= 0)
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s->dir = -1;
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result = av_cmp_q(s->vdelay, s->delay_min);
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if (result <= 0)
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s->dir = 1;
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ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
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offset(w, 1, 3), offset(h, 1, 3), offset(w, 1, 3), offset(h, 1, 4));
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s->flash = 0;
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}
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s->flash++;
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}
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s->prev_intpart = intpart;
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for (int i = av_rescale(s->delay_min.num, 1, s->delay_min.den);
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i < av_rescale(s->delay_max.num, 1, s->delay_max.den); i++) {
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ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
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av_clip(new_offset + step * i, 0, w - 2),
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offset(h, 7, 10), 1, offset(h, 1, 20));
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}
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out->pts = s->vpts++;
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out->duration = 1;
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return ff_filter_frame(outlink, out);
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}
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static int activate(AVFilterContext *ctx)
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{
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AVSyncTestContext *s = ctx->priv;
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AVFilterLink *aoutlink = ctx->outputs[0];
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AVFilterLink *voutlink = ctx->outputs[1];
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int ret = FFERROR_NOT_READY;
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if (!ff_outlink_frame_wanted(aoutlink) &&
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!ff_outlink_frame_wanted(voutlink))
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return ret;
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if (s->duration > 0 && s->apts >= s->duration) {
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ff_outlink_set_status(aoutlink, AVERROR_EOF, s->apts);
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ff_outlink_set_status(voutlink, AVERROR_EOF, s->vpts);
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return 0;
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}
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ret = audio_frame(aoutlink);
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if (ret < 0)
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return ret;
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ret = video_frame(voutlink);
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return ret;
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}
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static const AVFilterPad avsynctest_outputs[] = {
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{
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.name = "audio",
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.type = AVMEDIA_TYPE_AUDIO,
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.config_props = aconfig_props,
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},
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{
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.name = "video",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_props,
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},
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};
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const AVFilter ff_avsrc_avsynctest = {
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.name = "avsynctest",
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.description = NULL_IF_CONFIG_SMALL("Generate an Audio Video Sync Test."),
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.priv_size = sizeof(AVSyncTestContext),
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.priv_class = &avsynctest_class,
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.inputs = NULL,
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.activate = activate,
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FILTER_OUTPUTS(avsynctest_outputs),
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FILTER_QUERY_FUNC(query_formats),
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};
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