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avfilter/vf_zoompan: fix pts handling

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Now output pts have some sense.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-01-24 19:57:56 +01:00
parent 8a34344379
commit f42eae96b2
2 changed files with 8 additions and 2 deletions
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3
doc/filters.texi
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@ -12582,6 +12582,9 @@ single input image.
@item s
Set the output image size, default is 'hd720'.
@item fps
Set the output frame rate, default is '25'.
@end table
Each expression can contain the following constants:

7
libavfilter/vf_zoompan.c
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@ -92,6 +92,7 @@ typedef struct ZPcontext {
int nb_frames;
int current_frame;
int finished;
AVRational framerate;
} ZPContext;
#define OFFSET(x) offsetof(ZPContext, x)
@ -103,6 +104,7 @@ static const AVOption zoompan_options[] = {
{ "y", "set the y expression", OFFSET(y_expr_str), AV_OPT_TYPE_STRING, {.str="0"}, .flags = FLAGS },
{ "d", "set the duration expression", OFFSET(duration_expr_str), AV_OPT_TYPE_STRING, {.str="90"}, .flags = FLAGS },
{ "s", "set the output image size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, .flags = FLAGS },
{ "fps", "set the output framerate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, .flags = FLAGS },
{ NULL }
};
@ -123,6 +125,8 @@ static int config_output(AVFilterLink *outlink)
outlink->w = s->w;
outlink->h = s->h;
outlink->time_base = av_inv_q(s->framerate);
outlink->frame_rate = s->framerate;
s->desc = av_pix_fmt_desc_get(outlink->format);
return 0;
@ -133,8 +137,7 @@ static int output_single_frame(AVFilterContext *ctx, AVFrame *in, double *var_va
{
ZPContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
int64_t pts = av_rescale_q(in->pts, ctx->inputs[0]->time_base,
outlink->time_base) + s->frame_count;
int64_t pts = s->frame_count;
int k, x, y, w, h, ret = 0;
uint8_t *input[4];
int px[4], py[4];