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vf: make sure less important image params are set before/after filters

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Image parameters like colorspace, color levels, and chroma location are
generally less important, and many filters don't set them correctly.
Force them instead in the generic VF code, which is probably better and
more convenient over all. So we designate this is a proper solution,
instead of a dirty hack.
This commit is contained in:
wm4 2013-07-18 13:37:24 +02:00
parent d8659c9aa0
commit 2134fa4e6b
1 changed files with 21 additions and 14 deletions
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35
video/filter/vf.c
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@ -128,13 +128,29 @@ int vf_control(struct vf_instance *vf, int cmd, void *arg)
return vf->control(vf, cmd, arg);
}
static void vf_fix_img_params(struct mp_image *img, struct mp_image_params *p)
{
// Filters must absolutely set these correctly.
assert(img->w == p->w && img->h == p->h);
assert(img->imgfmt == p->imgfmt);
// Too many things don't set this correctly.
// If --colormatrix is used, decoder and filter chain disagree too.
// In general, it's probably more convenient to force these here,
// instead of requiring filters to set these correctly.
img->colorspace = p->colorspace;
img->levels = p->colorlevels;
img->chroma_location = p->chroma_location;
}
// Get a new image for filter output, with size and pixel format according to
// the last vf_config call.
struct mp_image *vf_alloc_out_image(struct vf_instance *vf)
{
struct mp_image_params *p = &vf->fmt_out.params;
assert(vf->fmt_out.configured);
return mp_image_pool_get(vf->out_pool, p->imgfmt, p->w, p->h);
struct mp_image_params *p = &vf->fmt_out.params;
struct mp_image *img = mp_image_pool_get(vf->out_pool, p->imgfmt, p->w, p->h);
vf_fix_img_params(img, p);
return img;
}
void vf_make_out_image_writeable(struct vf_instance *vf, struct mp_image *img)
@ -360,16 +376,9 @@ unsigned int vf_match_csp(vf_instance_t **vfp, const unsigned int *list,
void vf_add_output_frame(struct vf_instance *vf, struct mp_image *img)
{
if (img) {
struct mp_image_params *p = &vf->fmt_out.params;
// vf_vo doesn't have output config
if (vf->fmt_out.configured) {
assert(p->imgfmt == img->imgfmt);
assert(p->w == img->w && p->h == img->h);
// Too many filters which don't set these correctly
img->colorspace = p->colorspace;
img->levels = p->colorlevels;
img->chroma_location = p->chroma_location;
}
if (vf->fmt_out.configured)
vf_fix_img_params(img, &vf->fmt_out.params);
MP_TARRAY_APPEND(vf, vf->out_queued, vf->num_out_queued, img);
}
}
@ -388,10 +397,8 @@ static struct mp_image *vf_dequeue_output_frame(struct vf_instance *vf)
// Return >= 0 on success, < 0 on failure (even if output frames were produced)
int vf_filter_frame(struct vf_instance *vf, struct mp_image *img)
{
struct mp_image_params *p = &vf->fmt_in.params;
assert(vf->fmt_in.configured);
assert(img->w == p->w && img->h == p->h);
assert(img->imgfmt == p->imgfmt);
vf_fix_img_params(img, &vf->fmt_in.params);
if (vf->filter_ext) {
return vf->filter_ext(vf, img);