@item seed
Set seed for picking gradient line points.
+
+@item duration, d
+Set the duration of the sourced video. See
+@ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}
+for the accepted syntax.
+
+If not specified, or the expressed duration is negative, the video is
+supposed to be generated forever.
@end table
int w, h;
int type;
AVRational frame_rate;
- uint64_t pts;
+ int64_t pts;
+ int64_t duration; ///< duration expressed in microseconds
uint8_t color_rgba[8][4];
int nb_colors;
{"nb_colors", "set the number of colors", OFFSET(nb_colors), AV_OPT_TYPE_INT, {.i64=2}, 2, 8, FLAGS },
{"n", "set the number of colors", OFFSET(nb_colors), AV_OPT_TYPE_INT, {.i64=2}, 2, 8, FLAGS },
{"seed", "set the seed", OFFSET(seed), AV_OPT_TYPE_INT64, {.i64=-1}, -1, UINT32_MAX, 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 },\
{NULL},
};
const float w2 = s->w / 2.f;
const float h2 = s->h / 2.f;
+ if (s->duration >= 0 &&
+ av_rescale_q(s->pts, outlink->time_base, AV_TIME_BASE_Q) >= s->duration)
+ return AVERROR_EOF;
+
s->fx0 = (s->x0 - w2) * cosf(angle) - (s->y0 - h2) * sinf(angle) + w2;
s->fy0 = (s->x0 - w2) * sinf(angle) + (s->y0 - h2) * cosf(angle) + h2;
if (!frame)
return AVERROR(ENOMEM);
+ frame->key_frame = 1;
+ frame->interlaced_frame = 0;
+ frame->pict_type = AV_PICTURE_TYPE_I;
frame->sample_aspect_ratio = (AVRational) {1, 1};
frame->pts = s->pts++;