diff options
Diffstat (limited to 'libmpcodecs')
| -rw-r--r-- | libmpcodecs/vf_crop.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libmpcodecs/vf_crop.c b/libmpcodecs/vf_crop.c index a0dd158128..6ad625fb9e 100644 --- a/libmpcodecs/vf_crop.c +++ b/libmpcodecs/vf_crop.c @@ -91,11 +91,40 @@ static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){ return vf_next_put_image(vf,dmpi); } +static void start_slice(struct vf_instance_s* vf, mp_image_t *mpi){ + if(!vf->next->draw_slice){ + mpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK; + return; + } + vf_get_image(vf->next, mpi->imgfmt, mpi->type, mpi->flags, + vf->priv->crop_w, vf->priv->crop_h); +} + +static void draw_slice(struct vf_instance_s* vf, + unsigned char** src, int* stride, int w,int h, int x, int y){ + //mp_msg(MSGT_VFILTER, MSGL_V, "crop slice %d %d %d %d ->", w,h,x,y); + if ((x -= vf->priv->crop_x) < 0) { + w += x; + x = 0; + } + if ((y -= vf->priv->crop_y) < 0) { + h += y; + y = 0; + } + if (x+w > vf->priv->crop_w) w = vf->priv->crop_w-x; + if (y+h > vf->priv->crop_h) h = vf->priv->crop_h-y; + //mp_msg(MSGT_VFILTER, MSGL_V, "%d %d %d %d\n", w,h,x,y); + if ((w < 0) || (h < 0)) return; + vf_next_draw_slice(vf,src,stride,w,h,x,y); +} + //===========================================================================// static int open(vf_instance_t *vf, char* args){ vf->config=config; vf->put_image=put_image; + vf->start_slice=start_slice; + vf->draw_slice=draw_slice; vf->default_reqs=VFCAP_ACCEPT_STRIDE; if(!vf->priv) { vf->priv=malloc(sizeof(struct vf_priv_s)); |