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lavfi/mandelbrot: make use of AV_OPT_TYPE_VIDEO_RATE

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-03-26 12:08:44 +00:00
parent 54056c6655
commit 975efc8864
1 changed files with 4 additions and 14 deletions
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18
libavfilter/vsrc_mandelbrot.c
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@ -58,9 +58,8 @@ typedef struct Point {
typedef struct {
const AVClass *class;
int w, h;
AVRational time_base;
AVRational frame_rate;
uint64_t pts;
char *rate;
int maxiter;
double start_x;
double start_y;
@ -84,8 +83,8 @@ typedef struct {
static const AVOption mandelbrot_options[] = {
{"size", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="640x480"}, CHAR_MIN, CHAR_MAX, FLAGS },
{"s", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="640x480"}, CHAR_MIN, CHAR_MAX, FLAGS },
{"rate", "set frame rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str="25"}, CHAR_MIN, CHAR_MAX, FLAGS },
{"r", "set frame rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str="25"}, CHAR_MIN, CHAR_MAX, FLAGS },
{"rate", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, CHAR_MIN, CHAR_MAX, FLAGS },
{"r", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, CHAR_MIN, CHAR_MAX, FLAGS },
{"maxiter", "set max iterations number", OFFSET(maxiter), AV_OPT_TYPE_INT, {.i64=7189}, 1, INT_MAX, FLAGS },
{"start_x", "set the initial x position", OFFSET(start_x), AV_OPT_TYPE_DOUBLE, {.dbl=-0.743643887037158704752191506114774}, -100, 100, FLAGS },
{"start_y", "set the initial y position", OFFSET(start_y), AV_OPT_TYPE_DOUBLE, {.dbl=-0.131825904205311970493132056385139}, -100, 100, FLAGS },
@ -112,7 +111,6 @@ AVFILTER_DEFINE_CLASS(mandelbrot);
static av_cold int init(AVFilterContext *ctx, const char *args)
{
MBContext *mb = ctx->priv;
AVRational rate_q;
int err;
mb->class = &mandelbrot_class;
@ -125,13 +123,6 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
mb->start_scale /=mb->h;
mb->end_scale /=mb->h;
if (av_parse_video_rate(&rate_q, mb->rate) < 0) {
av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", mb->rate);
return AVERROR(EINVAL);
}
mb->time_base.num = rate_q.den;
mb->time_base.den = rate_q.num;
mb->cache_allocated = mb->w * mb->h * 3;
mb->cache_used = 0;
mb->point_cache= av_malloc(sizeof(*mb->point_cache)*mb->cache_allocated);
@ -145,7 +136,6 @@ static av_cold void uninit(AVFilterContext *ctx)
{
MBContext *mb = ctx->priv;
av_freep(&mb->rate);
av_freep(&mb->point_cache);
av_freep(&mb-> next_cache);
av_freep(&mb->zyklus);
@ -172,7 +162,7 @@ static int config_props(AVFilterLink *inlink)
inlink->w = mb->w;
inlink->h = mb->h;
inlink->time_base = mb->time_base;
inlink->time_base = av_inv_q(mb->frame_rate);
return 0;
}