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vf: minor simplification 

Remove the extra vf_chain.output field - there's absolutely no need for
it, because there is always a last filter which will buffer the output.

For some reason, vf_chain.last was never set, which we now need to fix
too.
This commit is contained in:
wm4 2014-11-12 18:51:05 +01:00
parent b244d5d817
commit 509997ec12
2 changed files with 9 additions and 16 deletions
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23
video/filter/vf.c
View File

@ -444,7 +444,7 @@ int vf_filter_frame(struct vf_chain *c, struct mp_image *img)
// returns: -1: error, 0: no output, 1: output available
int vf_output_frame(struct vf_chain *c, bool eof)
{
if (c->output)
if (c->last->num_out_queued)
return 1;
if (c->initialized < 1)
return -1;
@ -463,12 +463,9 @@ int vf_output_frame(struct vf_chain *c, bool eof)
}
if (!last)
return 0;
struct mp_image *img = vf_dequeue_output_frame(last);
if (!last->next) {
c->output = img;
return !!c->output;
}
int r = vf_do_filter(last->next, img);
if (!last->next)
return 1;
int r = vf_do_filter(last->next, vf_dequeue_output_frame(last));
if (r < 0)
return r;
}
@ -476,11 +473,9 @@ int vf_output_frame(struct vf_chain *c, bool eof)
struct mp_image *vf_read_output_frame(struct vf_chain *c)
{
if (!c->output)
if (!c->last->num_out_queued)
vf_output_frame(c, false);
struct mp_image *res = c->output;
c->output = NULL;
return res;
return vf_dequeue_output_frame(c->last);
}
static void vf_forget_frames(struct vf_instance *vf)
@ -494,7 +489,6 @@ static void vf_chain_forget_frames(struct vf_chain *c)
{
for (struct vf_instance *cur = c->first; cur; cur = cur->next)
vf_forget_frames(cur);
mp_image_unrefp(&c->output);
}
void vf_seek_reset(struct vf_chain *c)
@ -705,12 +699,13 @@ struct vf_chain *vf_new(struct mpv_global *global)
.query_format = input_query_format,
};
static const struct vf_info out = { .name = "out" };
c->first->next = talloc(c, struct vf_instance);
*c->first->next = (struct vf_instance) {
c->last = talloc(c, struct vf_instance);
*c->last = (struct vf_instance) {
.info = &out,
.query_format = output_query_format,
.priv = (void *)c,
};
c->first->next = c->last;
return c;
}

2
video/filter/vf.h
View File

@ -121,8 +121,6 @@ struct vf_chain {
struct MPOpts *opts;
struct mpv_global *global;
struct mp_hwdec_info *hwdec;
struct mp_image *output;
};
typedef struct vf_seteq {