@@ -579,6 +579,7 @@ OBJS-$(CONFIG_SHOWWAVESPIC_FILTER) += avf_showwaves.o
OBJS-$(CONFIG_SPECTRUMSYNTH_FILTER) += vaf_spectrumsynth.o
# multimedia sources
+OBJS-$(CONFIG_AVSYNCTEST_FILTER) += src_avsynctest.o
OBJS-$(CONFIG_AMOVIE_FILTER) += src_movie.o
OBJS-$(CONFIG_MOVIE_FILTER) += src_movie.o
@@ -551,6 +551,7 @@ extern const AVFilter ff_avf_showwavespic;
extern const AVFilter ff_vaf_spectrumsynth;
/* multimedia sources */
+extern const AVFilter ff_avsrc_avsynctest;
extern const AVFilter ff_avsrc_amovie;
extern const AVFilter ff_avsrc_movie;
new file mode 100644
@@ -0,0 +1,399 @@
+/*
+ * Copyright (c) 2017-2022 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/ffmath.h"
+#include "libavutil/opt.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/timestamp.h"
+#include "libavutil/xga_font_data.h"
+#include "avfilter.h"
+#include "drawutils.h"
+#include "filters.h"
+#include "formats.h"
+#include "internal.h"
+#include "audio.h"
+#include "video.h"
+
+typedef struct AVSyncTestContext {
+ const AVClass *class;
+
+ int w, h;
+ AVRational frame_rate;
+ int sample_rate;
+ int64_t duration;
+ int64_t apts, vpts;
+ float amplitude;
+ int period;
+ int delay;
+ int cycle;
+
+ int beep;
+ int beep_duration;
+ int flash;
+ int dir;
+ AVRational vdelay, delay_max, delay_min;
+ AVRational delay_range;
+ int64_t prev_intpart;
+
+ uint8_t rgba[3][4];
+ FFDrawContext draw;
+ FFDrawColor fg;
+ FFDrawColor bg;
+ FFDrawColor ag;
+} AVSyncTestContext;
+
+#define OFFSET(x) offsetof(AVSyncTestContext, x)
+#define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
+#define V AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
+
+static const AVOption avsynctest_options[] = {
+ {"size", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, V },
+ {"s", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, V },
+ {"framerate", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="30"}, 0,INT_MAX, V },
+ {"fr", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="30"}, 0,INT_MAX, V },
+ {"samplerate", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64=44100},8000,384000, A },
+ {"sr", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64=44100},8000,384000, A },
+ {"amplitude", "set beep amplitude", OFFSET(amplitude), AV_OPT_TYPE_FLOAT, {.dbl=.7}, 0., 1., A },
+ {"a", "set beep amplitude", OFFSET(amplitude), AV_OPT_TYPE_FLOAT, {.dbl=.7}, 0., 1., A },
+ {"period", "set beep period", OFFSET(period), AV_OPT_TYPE_INT, {.i64=3}, 1, 99., A },
+ {"p", "set beep period", OFFSET(period), AV_OPT_TYPE_INT, {.i64=3}, 1, 99., A },
+ {"delay", "set flash delay", OFFSET(delay), AV_OPT_TYPE_INT, {.i64=0}, -30, 30, V },
+ {"dl", "set flash delay", OFFSET(delay), AV_OPT_TYPE_INT, {.i64=0}, -30, 30, V },
+ {"cycle", "set delay cycle", OFFSET(cycle), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, V },
+ {"c", "set delay cycle", OFFSET(cycle), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, V },
+ {"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=0}, 0, INT64_MAX, V|A },
+ {"d", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=0}, 0, INT64_MAX, V|A },
+ {"fg", "set foreground color", OFFSET(rgba[0]), AV_OPT_TYPE_COLOR, {.str="white"}, 0, 0, V },
+ {"bg", "set background color", OFFSET(rgba[1]), AV_OPT_TYPE_COLOR, {.str="black"}, 0, 0, V },
+ {"ag", "set additional color", OFFSET(rgba[2]), AV_OPT_TYPE_COLOR, {.str="gray"}, 0, 0, V },
+ {NULL},
+};
+
+AVFILTER_DEFINE_CLASS(avsynctest);
+
+static av_cold int query_formats(AVFilterContext *ctx)
+{
+ AVSyncTestContext *s = ctx->priv;
+ static const int64_t chlayouts[] = { AV_CH_LAYOUT_MONO, -1 };
+ int sample_rates[] = { s->sample_rate, -1 };
+ static const enum AVSampleFormat sample_fmts[] = {
+ AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_NONE
+ };
+ AVFilterFormats *formats;
+ AVFilterChannelLayouts *layouts;
+ int ret;
+
+ formats = ff_make_format_list(sample_fmts);
+ if (!formats)
+ return AVERROR(ENOMEM);
+ if ((ret = ff_formats_ref(formats, &ctx->outputs[0]->incfg.formats)) < 0)
+ return ret;
+
+ formats = ff_draw_supported_pixel_formats(0);
+ if (!formats)
+ return AVERROR(ENOMEM);
+ if ((ret = ff_formats_ref(formats, &ctx->outputs[1]->incfg.formats)) < 0)
+ return ret;
+
+ layouts = ff_make_format64_list(chlayouts);
+ if (!layouts)
+ return AVERROR(ENOMEM);
+ ret = ff_set_common_channel_layouts(ctx, layouts);
+ if (ret < 0)
+ return ret;
+
+ formats = ff_make_format_list(sample_rates);
+ if (!formats)
+ return AVERROR(ENOMEM);
+ return ff_set_common_samplerates(ctx, formats);
+}
+
+static av_cold int aconfig_props(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ AVSyncTestContext *s = ctx->priv;
+
+ outlink->sample_rate = s->sample_rate;
+ outlink->time_base = (AVRational){1, s->sample_rate};
+
+ s->beep_duration = av_rescale(s->sample_rate, s->frame_rate.den, s->frame_rate.num);
+ s->duration = av_rescale(s->duration, s->sample_rate, AV_TIME_BASE);
+
+ return 0;
+}
+
+static av_cold int config_props(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ AVSyncTestContext *s = ctx->priv;
+
+ outlink->w = s->w;
+ outlink->h = s->h;
+ outlink->time_base = av_inv_q(s->frame_rate);
+ outlink->sample_aspect_ratio = (AVRational) {1, 1};
+ s->delay_min = av_mul_q(s->frame_rate, av_make_q(-1, 2));
+ s->delay_max = av_mul_q(s->delay_min, av_make_q(-1, 1));
+ s->delay_range = av_sub_q(s->delay_max, s->delay_min);
+ s->vdelay = av_make_q(s->delay, 1);
+ s->dir = 1;
+ s->prev_intpart = INT64_MIN;
+
+ ff_draw_init(&s->draw, outlink->format, 0);
+
+ ff_draw_color(&s->draw, &s->fg, s->rgba[0]);
+ ff_draw_color(&s->draw, &s->bg, s->rgba[1]);
+ ff_draw_color(&s->draw, &s->ag, s->rgba[2] );
+
+ return 0;
+}
+
+#define FPI 0x8000
+
+static int32_t sin32(int32_t x, int shift)
+{
+ const double pi = M_PI;
+ const int32_t a = ((2.0 * pi) * (1 << 24));
+ const int32_t b = (1 << 7) * (12.0 / pi - 1.0 - pi) * (1 << 24);
+ const int32_t c = (1 << 9) * 3.0 * (2.0 + pi - 16.0 / pi) * (1 << 24);
+ int64_t x2, result;
+ int32_t t1, t2;
+
+ x &= 2 * FPI - 1;
+
+ if (x >= (3 * FPI / 2))
+ x = x - 2 * FPI;
+ else if (x > FPI / 2)
+ x = FPI - x;
+
+ x2 = x * x;
+ t1 = (x2 * c) >> 32;
+ t2 = ((b + t1) * x2) >> 32;
+ x = x << 8;
+
+ result = a + t2;
+ result *= x;
+ result += (1U << 31);
+ result >>= (32 - shift);
+
+ return result;
+}
+
+static int audio_frame(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ AVSyncTestContext *s = ctx->priv;
+ const int a = lrintf(s->amplitude * 15);
+ int64_t delta;
+ AVFrame *out;
+ int32_t *dst;
+
+ delta = av_rescale_q(s->vpts, av_make_q(s->sample_rate, 1), s->frame_rate) - s->apts;
+ if (delta < 0) {
+ ff_filter_set_ready(ctx, 200);
+ return 0;
+ }
+
+ delta = delta ? FFMIN(delta, s->sample_rate) : av_rescale(s->sample_rate, s->frame_rate.den, s->frame_rate.num);
+ out = ff_get_audio_buffer(outlink, delta);
+ if (!out)
+ return AVERROR(ENOMEM);
+
+ out->pts = s->apts;
+ dst = (int32_t *)out->data[0];
+
+ for (int i = 0; i < delta; i++) {
+ if (((s->apts + i) % (s->period * s->sample_rate)) == 0)
+ s->beep = 1;
+ if (s->beep) {
+ dst[i] = sin32(av_rescale_q(800LL * 2LL * FPI, outlink->time_base, av_make_q(1, s->apts + i)), a);
+ s->beep++;
+ } else {
+ dst[i] = 0;
+ }
+ if (s->beep >= s->beep_duration) {
+ s->beep = 0;
+ }
+ }
+ s->apts += out->nb_samples;
+
+ return ff_filter_frame(outlink, out);
+}
+
+static void draw_text(FFDrawContext *draw, AVFrame *out, FFDrawColor *color,
+ int x0, int y0, const uint8_t *text)
+{
+ int x = x0;
+
+ for (; *text; text++) {
+ if (*text == '\n') {
+ x = x0;
+ y0 += 8;
+ continue;
+ }
+ ff_blend_mask(draw, color, out->data, out->linesize,
+ out->width, out->height,
+ avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
+ x += 8;
+ }
+}
+
+static int offset(int x, int num, int den)
+{
+ return av_rescale_rnd(x, num, den, AV_ROUND_UP);
+}
+
+static int video_frame(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ AVSyncTestContext *s = ctx->priv;
+ const int w = outlink->w;
+ const int h = outlink->h;
+ const int step = av_rescale_rnd(w, s->delay_range.den, s->delay_range.num, AV_ROUND_DOWN);
+ char text[128];
+ int new_offset;
+ int64_t delta, temp, intpart;
+ AVFrame *out;
+
+ delta = av_rescale_q(s->apts, s->frame_rate, av_make_q(s->sample_rate, 1)) - s->vpts;
+ if (delta < 0)
+ return 0;
+
+ out = ff_get_video_buffer(outlink, w, h);
+ if (!out)
+ return AVERROR(ENOMEM);
+
+ ff_fill_rectangle(&s->draw, &s->bg, out->data, out->linesize, 0, 0, w, h);
+
+ snprintf(text, sizeof(text), "FRN: %"PRId64"", s->vpts);
+ draw_text(&s->draw, out, &s->fg, offset(w, 1, 10), offset(h, 1, 10), text);
+
+ snprintf(text, sizeof(text), "SEC: %s", av_ts2timestr(s->vpts, &outlink->time_base));
+ draw_text(&s->draw, out, &s->fg, offset(w, 1, 10), offset(h, 9, 10), text);
+
+ snprintf(text, sizeof(text), "DLY: %d", s->vdelay.num);
+ draw_text(&s->draw, out, &s->fg, offset(w, 9, 10) - strlen(text) * 8, offset(h, 9, 10), text);
+
+ snprintf(text, sizeof(text), "FPS: %d/%d", s->frame_rate.num, s->frame_rate.den);
+ draw_text(&s->draw, out, &s->fg, offset(w, 9, 10) - strlen(text) * 8, offset(h, 1, 10), text);
+
+ snprintf(text, sizeof(text), "P: %d", s->period);
+ draw_text(&s->draw, out, &s->ag, offset(w, 1, 2) - strlen(text) * 4, offset(h, 9, 10), text);
+
+ snprintf(text, sizeof(text), "SR: %d", s->sample_rate);
+ draw_text(&s->draw, out, &s->ag, offset(w, 1, 2) - strlen(text) * 4, offset(h, 1, 10), text);
+
+ snprintf(text, sizeof(text), "A: %1.2f", s->amplitude);
+ draw_text(&s->draw, out, &s->ag, offset(w, 1, 10), offset(h, 1, 2), text);
+
+ snprintf(text, sizeof(text), "WxH: %dx%d", w, h);
+ draw_text(&s->draw, out, &s->ag, offset(w, 9, 10) - strlen(text) * 8, offset(h, 1, 2), text);
+
+ temp = s->vpts + s->vdelay.num;
+ intpart = av_rescale_rnd(temp, outlink->time_base.num, outlink->time_base.den, AV_ROUND_NEAR_INF);
+ intpart = temp - av_rescale_rnd(intpart, outlink->time_base.den, outlink->time_base.num, AV_ROUND_NEAR_INF);
+
+ new_offset = offset(w, 1, 2);
+ ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
+ av_clip(new_offset + step * intpart, 0, w - 2),
+ offset(h, 141, 200), offset(step, 2, 3), offset(h, 1, 25));
+
+ if (intpart == 0 && s->prev_intpart != intpart) {
+ if (s->flash >= s->period) {
+ int result;
+
+ if (s->cycle)
+ s->vdelay = av_add_q(s->vdelay, av_make_q(s->dir, 1));
+ result = av_cmp_q(s->vdelay, s->delay_max);
+ if (result >= 0)
+ s->dir = -1;
+ result = av_cmp_q(s->vdelay, s->delay_min);
+ if (result <= 0)
+ s->dir = 1;
+ ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
+ offset(w, 1, 3), offset(h, 1, 3), offset(w, 1, 3), offset(h, 1, 4));
+ s->flash = 0;
+ }
+ s->flash++;
+ }
+ s->prev_intpart = intpart;
+
+ for (int i = av_rescale(s->delay_min.num, 1, s->delay_min.den);
+ i < av_rescale(s->delay_max.num, 1, s->delay_max.den); i++) {
+ ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
+ av_clip(new_offset + step * i, 0, w - 2),
+ offset(h, 7, 10), 1, offset(h, 1, 20));
+ }
+
+ out->pts = s->vpts++;
+
+ return ff_filter_frame(outlink, out);
+}
+
+static int activate(AVFilterContext *ctx)
+{
+ AVSyncTestContext *s = ctx->priv;
+ AVFilterLink *voutlink = ctx->outputs[1];
+ AVFilterLink *aoutlink = ctx->outputs[0];
+ int ret = 0;
+
+ if (s->duration > 0 && s->apts >= s->duration) {
+ ff_outlink_set_status(aoutlink, AVERROR_EOF, s->apts);
+ ff_outlink_set_status(voutlink, AVERROR_EOF, s->vpts);
+ return 0;
+ }
+
+ if (ff_outlink_frame_wanted(voutlink))
+ ret = video_frame(voutlink);
+ if (ret < 0)
+ return ret;
+ if (ff_outlink_frame_wanted(aoutlink))
+ return audio_frame(aoutlink);
+
+ return FFERROR_NOT_READY;
+}
+
+static const AVFilterPad avsynctest_outputs[] = {
+ {
+ .name = "audio",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .config_props = aconfig_props,
+ },
+ {
+ .name = "video",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = config_props,
+ },
+};
+
+AVFilter ff_avsrc_avsynctest = {
+ .name = "avsynctest",
+ .description = NULL_IF_CONFIG_SMALL("Generate an Audio Video Sync Test."),
+ .priv_size = sizeof(AVSyncTestContext),
+ .priv_class = &avsynctest_class,
+ .inputs = NULL,
+ .activate = activate,
+ FILTER_OUTPUTS(avsynctest_outputs),
+ FILTER_QUERY_FUNC(query_formats),
+};
Signed-off-by: Paul B Mahol <onemda@gmail.com> --- libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/src_avsynctest.c | 399 +++++++++++++++++++++++++++++++++++ 3 files changed, 401 insertions(+) create mode 100644 libavfilter/src_avsynctest.c