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screenshot: remove hack for passing anamorphic image size

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With anamorphic video (display with non-1:1 PAR, e.g. DVD), the display
size was passed using the mp_image fields w/h, which was blatantly
incorrect. w/h are the normal image dimensions, while width/height are
the "uncropped" storage size (used internally by vf.c).

Add a display_w/h, and use that for the display size. Make all VOs that
can do screenshots use it.
This commit is contained in:
wm4 2012-10-26 20:19:06 +02:00
parent 738aeb1c60
commit c62efc52c6
10 changed files with 33 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
image_writer.c
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@ -264,7 +264,9 @@ int write_image(struct mp_image *image, const struct image_writer_opts *opts,
{
struct mp_image *allocated_image = NULL;
struct image_writer_opts defs = image_writer_opts_defaults;
bool is_anamorphic = image->w != image->width || image->h != image->height;
int d_w = image->display_w ? image->display_w : image->w;
int d_h = image->display_h ? image->display_h : image->h;
bool is_anamorphic = image->w != d_w || image->h != d_h;
if (!opts)
opts = &defs;
@ -287,17 +289,13 @@ int write_image(struct mp_image *image, const struct image_writer_opts *opts,
// - RGB->YUV assumes BT.601
// - color levels broken in various ways thanks to libswscale
if (image->imgfmt != destfmt || is_anamorphic) {
struct mp_image hack = *image;
hack.w = hack.width;
hack.h = hack.height;
struct mp_image *dst = alloc_mpi(image->w, image->h, destfmt);
struct mp_image *dst = alloc_mpi(d_w, d_h, destfmt);
vf_clone_mpi_attributes(dst, image);
int flags = SWS_LANCZOS | SWS_FULL_CHR_H_INT | SWS_FULL_CHR_H_INP |
SWS_ACCURATE_RND | SWS_BITEXACT;
mp_image_swscale(dst, &hack, flags);
mp_image_swscale(dst, image, flags);
allocated_image = dst;
image = dst;

3
libmpcodecs/mp_image.h
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@ -104,8 +104,9 @@ typedef struct mp_image {
int number;
unsigned char bpp; // bits/pixel. NOT depth! for RGB it will be n*8
unsigned int imgfmt;
int width,height; // stored dimensions
int width,height; // internal to vf.c, do not use (stored dimensions)
int w,h; // visible dimensions
int display_w,display_h; // if set (!= 0), anamorphic size
uint8_t *planes[MP_MAX_PLANES];
int stride[MP_MAX_PLANES];
char * qscale;

2
libmpcodecs/vf.c
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@ -537,6 +537,8 @@ void vf_clone_mpi_attributes(mp_image_t *dst, mp_image_t *src)
if (dst->width == src->width && dst->height == src->height) {
dst->qstride = src->qstride;
dst->qscale = src->qscale;
dst->display_w = src->display_w;
dst->display_h = src->display_h;
}
if ((dst->flags & MP_IMGFLAG_YUV) == (src->flags & MP_IMGFLAG_YUV)) {
dst->colorspace = src->colorspace;

7
libvo/vo_corevideo.m
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@ -375,11 +375,8 @@ static mp_image_t *get_screenshot(struct vo *vo)
memcpy(image->planes[0], base, image_size);
image->stride[0] = stride;
image->width = width;
image->height = height;
image->w = vo->aspdat.prew;
image->h = vo->aspdat.preh;
image->display_w = vo->aspdat.prew;
image->display_h = vo->aspdat.preh;
mp_image_set_colorspace_details(image, &p->colorspace);

4
libvo/vo_direct3d.c
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@ -1801,8 +1801,8 @@ static mp_image_t *get_screenshot(d3d_priv *priv)
return NULL;
}
image->w = priv->vo->aspdat.prew;
image->h = priv->vo->aspdat.preh;
image->display_w = priv->vo->aspdat.prew;
image->display_h = priv->vo->aspdat.preh;
mp_image_set_colorspace_details(image, &priv->colorspace);

9
libvo/vo_opengl.c
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@ -1394,11 +1394,10 @@ static mp_image_t *get_screenshot(struct gl_priv *p)
}
gl->ActiveTexture(GL_TEXTURE0);
image->width = p->image_width;
image->height = p->image_height;
image->w = p->vo->aspdat.prew;
image->h = p->vo->aspdat.preh;
image->w = p->image_width;
image->h = p->image_height;
image->display_w = p->vo->aspdat.prew;
image->display_h = p->vo->aspdat.preh;
mp_image_set_colorspace_details(image, &p->colorspace);

9
libvo/vo_opengl_old.c
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@ -822,11 +822,10 @@ static mp_image_t *get_screenshot(struct vo *vo)
gl->ActiveTexture(GL_TEXTURE0);
}
image->width = p->image_width;
image->height = p->image_height;
image->w = vo->aspdat.prew;
image->h = vo->aspdat.preh;
image->w = p->image_width;
image->h = p->image_height;
image->display_w = vo->aspdat.prew;
image->display_h = vo->aspdat.preh;
mp_image_set_colorspace_details(image, &p->colorspace);

6
libvo/vo_vdpau.c
View File

@ -1397,10 +1397,8 @@ static struct mp_image *get_screenshot(struct vo *vo)
struct mp_image *image = read_output_surface(vc, vc->screenshot_surface,
vc->vid_width, vc->vid_height);
image->width = vc->vid_width;
image->height = vc->vid_height;
image->w = vo->aspdat.prew;
image->h = vo->aspdat.preh;
image->display_w = vo->aspdat.prew;
image->display_h = vo->aspdat.preh;
return image;
}

4
libvo/vo_xv.c
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@ -423,8 +423,8 @@ static mp_image_t *get_screenshot(struct vo *vo)
// try to get an image without OSD
int id = ctx->have_image_copy ? ctx->num_buffers : ctx->visible_buf;
struct mp_image img = get_xv_buffer(vo, id);
img.w = vo->aspdat.prew;
img.h = vo->aspdat.preh;
img.display_w = vo->aspdat.prew;
img.display_h = vo->aspdat.preh;
return talloc_memdup(NULL, &img, sizeof(img));
}

18
screenshot.c
View File

@ -242,25 +242,23 @@ static struct mp_image *add_subs(struct MPContext *mpctx,
image->imgfmt);
copy_mpi(new_image, image);
vf_clone_mpi_attributes(new_image, image);
new_image->w = image->w;
new_image->h = image->h;
image = new_image;
}
int d_w = image->display_w ? image->display_w : image->w;
int d_h = image->display_h ? image->display_h : image->h;
double sar = (double)image->width / image->height;
double dar = (double)image->w / image->h;
double dar = (double)d_w / d_h;
struct mp_osd_res res = {
.w = image->width,
.h = image->height,
.w = image->w,
.h = image->h,
.display_par = sar / dar,
.video_par = dar / sar,
};
// It's not really clear what's the difference between w and width
struct mp_image hack = *image;
hack.w = hack.width;
hack.h = hack.height;
osd_draw_on_image(mpctx->osd, res, mpctx->osd->vo_pts,
OSD_DRAW_SUB_ONLY, &hack);
OSD_DRAW_SUB_ONLY, image);
return image;
}