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yikes, wrong patch

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Original commit message from CVS:
yikes, wrong patch
This commit is contained in:
Thomas Vander Stichele 2004-07-18 18:41:03 +00:00
parent bf0248e49a
commit e8adc3fbf0
1 changed files with 9 additions and 196 deletions
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205
gst/videoscale/gstvideoscale.c
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@ -180,43 +180,25 @@ gst_videoscale_getcaps (GstPad * pad)
GstPad *otherpad; GstPad *otherpad;
int i; int i;
GST_DEBUG ("gst_videoscale_getcaps");
videoscale = GST_VIDEOSCALE (gst_pad_get_parent (pad)); videoscale = GST_VIDEOSCALE (gst_pad_get_parent (pad));
otherpad = (pad == videoscale->srcpad) ? videoscale->sinkpad : otherpad = (pad == videoscale->srcpad) ? videoscale->sinkpad :
videoscale->srcpad; videoscale->srcpad;
othercaps = gst_pad_get_allowed_caps (otherpad); othercaps = gst_pad_get_allowed_caps (otherpad);
GST_DEBUG_OBJECT (pad, "othercaps of otherpad %s:%s are: %" GST_PTR_FORMAT, GST_DEBUG ("othercaps are: %" GST_PTR_FORMAT, othercaps);
GST_DEBUG_PAD_NAME (otherpad), othercaps);
caps = gst_caps_copy (othercaps); caps = gst_caps_copy (othercaps);
for (i = 0; i < gst_caps_get_size (caps); i++) { for (i = 0; i < gst_caps_get_size (caps); i++) {
const GValue *par;
GstStructure *structure = gst_caps_get_structure (caps, i); GstStructure *structure = gst_caps_get_structure (caps, i);
gst_structure_set (structure, gst_structure_set (structure,
"width", GST_TYPE_INT_RANGE, 16, G_MAXINT, "width", GST_TYPE_INT_RANGE, 16, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 16, G_MAXINT, NULL); "height", GST_TYPE_INT_RANGE, 16, G_MAXINT, NULL);
gst_structure_remove_field (structure, "pixel-aspect-ratio");
/* copy the pixel aspect ratio from the previously stored value */
if (pad == videoscale->srcpad) {
par = videoscale->from_par;
g_print ("from_par: %p\n", par);
} else {
par = videoscale->to_par;
g_print ("to_par: %p\n", par);
}
#if 0
if (par) {
gst_structure_set (structure,
"pixel-aspect-ratio", GST_TYPE_FRACTION,
gst_value_get_fraction_numerator (par),
gst_value_get_fraction_denominator (par), NULL);
}
#endif
} }
GST_DEBUG_OBJECT (pad, "returning caps: %" GST_PTR_FORMAT, caps); GST_DEBUG ("returning caps: %" GST_PTR_FORMAT, caps);
return caps; return caps;
} }
@ -227,53 +209,29 @@ gst_videoscale_link (GstPad * pad, const GstCaps * caps)
{ {
GstVideoscale *videoscale; GstVideoscale *videoscale;
GstPadLinkReturn ret; GstPadLinkReturn ret;
int count = 0;
GstPad *otherpad; GstPad *otherpad;
GstCaps *othercaps;
GstStructure *structure; GstStructure *structure;
GstStructure *otherstructure;
struct videoscale_format_struct *format; struct videoscale_format_struct *format;
int height = 0, width = 0; int height, width;
const GValue *par = NULL;
const GValue *otherpar;
GST_DEBUG ("gst_videoscale_link %s\n", gst_caps_to_string (caps));
videoscale = GST_VIDEOSCALE (gst_pad_get_parent (pad)); videoscale = GST_VIDEOSCALE (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (videoscale, "linking pad %s:%s with caps %" GST_PTR_FORMAT,
GST_DEBUG_PAD_NAME (pad), caps);
otherpad = (pad == videoscale->srcpad) ? videoscale->sinkpad : otherpad = (pad == videoscale->srcpad) ? videoscale->sinkpad :
videoscale->srcpad; videoscale->srcpad;
structure = gst_caps_get_structure (caps, 0); structure = gst_caps_get_structure (caps, 0);
if (gst_structure_get_int (structure, "width", &width)) ret = gst_structure_get_int (structure, "width", &width);
count++; ret &= gst_structure_get_int (structure, "height", &height);
if (gst_structure_get_int (structure, "height", &height))
count++;
par = gst_structure_get_value (structure, "pixel-aspect-ratio");
if (par)
count++;
ret = (count == 3 || (count == 2 && !par));
format = videoscale_find_by_structure (structure); format = videoscale_find_by_structure (structure);
/* if we received only two of these three, and the other pad is negotiated,
* we can calculate the third and use it for negotiation */
g_print ("count me: %d\n", count);
if (count == 2 && gst_pad_is_negotiated (otherpad)) {
g_print ("OH YEAH; DO YOUR MAGIC\n");
}
if (!ret || format == NULL) if (!ret || format == NULL)
return GST_PAD_LINK_REFUSED; return GST_PAD_LINK_REFUSED;
GST_DEBUG_OBJECT (videoscale,
"trying to set caps %" GST_PTR_FORMAT " on pad %s:%s",
caps, GST_DEBUG_PAD_NAME (otherpad));
ret = gst_pad_try_set_caps (otherpad, caps); ret = gst_pad_try_set_caps (otherpad, caps);
if (ret == GST_PAD_LINK_OK) { if (ret == GST_PAD_LINK_OK) {
/* cool, we can use passthru */ /* cool, we can use passthru */
GST_DEBUG_OBJECT (videoscale, "passthru works");
videoscale->format = format; videoscale->format = format;
videoscale->to_width = width; videoscale->to_width = width;
@ -281,42 +239,22 @@ gst_videoscale_link (GstPad * pad, const GstCaps * caps)
videoscale->from_width = width; videoscale->from_width = width;
videoscale->from_height = height; videoscale->from_height = height;
g_print ("_setup");
gst_videoscale_setup (videoscale); gst_videoscale_setup (videoscale);
return GST_PAD_LINK_OK; return GST_PAD_LINK_OK;
} }
/* no passthru, so try to convert */
GST_DEBUG_OBJECT (videoscale, "no passthru");
if (gst_pad_is_negotiated (otherpad)) { if (gst_pad_is_negotiated (otherpad)) {
GstCaps *newcaps = gst_caps_copy (caps); GstCaps *newcaps = gst_caps_copy (caps);
GST_DEBUG_OBJECT (videoscale, "otherpad %s:%s is negotiated",
GST_DEBUG_PAD_NAME (otherpad));
if (pad == videoscale->srcpad) { if (pad == videoscale->srcpad) {
gst_caps_set_simple (newcaps, gst_caps_set_simple (newcaps,
"width", G_TYPE_INT, videoscale->from_width, "width", G_TYPE_INT, videoscale->from_width,
"height", G_TYPE_INT, videoscale->from_height, NULL); "height", G_TYPE_INT, videoscale->from_height, NULL);
if (videoscale->from_par) {
gst_structure_set (gst_caps_get_structure (newcaps, 0),
"pixel-aspect-ratio", GST_TYPE_FRACTION,
gst_value_get_fraction_numerator (videoscale->from_par),
gst_value_get_fraction_denominator (videoscale->from_par), NULL);
}
} else { } else {
gst_caps_set_simple (newcaps, gst_caps_set_simple (newcaps,
"width", G_TYPE_INT, videoscale->to_width, "width", G_TYPE_INT, videoscale->to_width,
"height", G_TYPE_INT, videoscale->to_height, NULL); "height", G_TYPE_INT, videoscale->to_height, NULL);
if (videoscale->to_par) {
gst_structure_set (gst_caps_get_structure (newcaps, 0),
"pixel-aspect-ratio", GST_TYPE_FRACTION,
gst_value_get_fraction_numerator (videoscale->to_par),
gst_value_get_fraction_denominator (videoscale->to_par), NULL);
}
} }
ret = gst_pad_try_set_caps (otherpad, newcaps); ret = gst_pad_try_set_caps (otherpad, newcaps);
if (GST_PAD_LINK_FAILED (ret)) { if (GST_PAD_LINK_FAILED (ret)) {
@ -325,148 +263,23 @@ gst_videoscale_link (GstPad * pad, const GstCaps * caps)
} }
videoscale->passthru = FALSE; videoscale->passthru = FALSE;
GST_DEBUG_OBJECT (videoscale,
"no passthru, otherpad %s:%s is not negotiated",
GST_DEBUG_PAD_NAME (otherpad));
/* since we're accepting these caps on this pad, we can now check for
* pixel-aspect-ratio, and try setting converted caps on the other pad,
* Keep one of w,h the same, and scale the other, using the pixel aspect
* ratio */
othercaps = gst_pad_get_caps (otherpad);
otherstructure = gst_caps_get_structure (othercaps, 0);
structure = gst_caps_get_structure (caps, 0);
par = gst_structure_get_value (structure, "pixel-aspect-ratio");
otherpar = gst_structure_get_value (otherstructure, "pixel-aspect-ratio");
GST_DEBUG ("othercaps: %" GST_PTR_FORMAT, othercaps);
g_print ("par %p, otherpar %p\n", par, otherpar);
if (par && otherpar) {
g_print ("par %d/%d, otherpar %d/%d\n",
gst_value_get_fraction_numerator (par),
gst_value_get_fraction_denominator (par),
gst_value_get_fraction_numerator (otherpar),
gst_value_get_fraction_denominator (otherpar));
}
if (pad == videoscale->srcpad) { if (pad == videoscale->srcpad) {
videoscale->to_width = width; videoscale->to_width = width;
videoscale->to_height = height; videoscale->to_height = height;
if (par) {
/* FIXME: add finalize to free these */
g_print ("storing par %p in to_par\n", par);
g_free (videoscale->to_par);
videoscale->to_par = g_new0 (GValue, 1);
gst_value_init_and_copy (videoscale->to_par, par);
}
} else { } else {
videoscale->from_width = width; videoscale->from_width = width;
videoscale->from_height = height; videoscale->from_height = height;
if (par) {
g_print ("storing par %p in from_par\n", par);
g_free (videoscale->from_par);
videoscale->from_par = g_new0 (GValue, 1);
gst_value_init_and_copy (videoscale->from_par, par);
}
} }
videoscale->format = format; videoscale->format = format;
if (gst_pad_is_negotiated (otherpad)) { if (gst_pad_is_negotiated (otherpad)) {
g_print ("_setup");
gst_videoscale_setup (videoscale); gst_videoscale_setup (videoscale);
} }
return GST_PAD_LINK_OK; return GST_PAD_LINK_OK;
} }
static GstCaps *
gst_videoscale_src_fixate (GstPad * pad, const GstCaps * caps)
{
GstVideoscale *videoscale;
GstCaps *newcaps;
int i;
gboolean ret = TRUE;
videoscale = GST_VIDEOSCALE (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (pad, "asked to fixate caps %" GST_PTR_FORMAT, caps);
/* fixate using pixel aspect ratio */
/* don't mess with fixation if we don't have a sink pad PAR */
if (!videoscale->from_par)
return NULL;
/* for each structure, if it contains a pixel aspect ratio,
* fix width and height */
newcaps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (newcaps); i++) {
const GValue *to_par;
//int w, h;
//int count;
GstStructure *structure = gst_caps_get_structure (newcaps, i);
to_par = gst_structure_get_value (structure, "pixel-aspect-ratio");
if (to_par) {
GValue to_ratio = { 0, }; /* w/h of output video */
int from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
int w = 0, h = 0;
int num, den;
g_print ("Going to fixate respecting pars");
from_w = videoscale->from_width;
from_h = videoscale->from_height;
from_par_n = gst_value_get_fraction_numerator (videoscale->from_par);
from_par_d = gst_value_get_fraction_denominator (videoscale->from_par);
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
g_print ("from %dx%d with %d/%d to %d/%d\n",
from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d);
g_value_init (&to_ratio, GST_TYPE_FRACTION);
gst_value_set_fraction (&to_ratio, from_w * from_par_n * to_par_d,
from_h * from_par_d * to_par_n);
num = gst_value_get_fraction_numerator (&to_ratio);
den = gst_value_get_fraction_denominator (&to_ratio);
g_print ("scale pixel size to %d/%d\n", num, den);
/* now find a width x height that respects this display ratio.
* prefer those that have one of w/h the same as the incoming video
* using wd / hd = num / den */
/* start with same width
* check hd / den is an integer scale factor, and scale num
* to VIDEO_WIDTH by this factor */
if (from_w % num == 0) {
w = from_w;
h = w * den / num;
GST_DEBUG_OBJECT (videoscale, "keeping video width");
} else if (from_h % den == 0) {
h = from_h;
w = h * num / den;
GST_DEBUG_OBJECT (videoscale, "keeping video height");
} else
g_assert_not_reached (); /* FIXME, approximate */
GST_DEBUG_OBJECT (videoscale, "scaling to %dx%d", w, h);
/* now fixate */
ret &=
gst_caps_structure_fixate_field_nearest_int (structure, "width", w);
ret &=
gst_caps_structure_fixate_field_nearest_int (structure, "height", h);
}
}
if (ret)
return newcaps;
gst_caps_free (newcaps);
return NULL;
}
static void static void
gst_videoscale_init (GstVideoscale * videoscale) gst_videoscale_init (GstVideoscale * videoscale)
{ {
@ -486,7 +299,6 @@ gst_videoscale_init (GstVideoscale * videoscale)
gst_videoscale_handle_src_event); gst_videoscale_handle_src_event);
gst_pad_set_link_function (videoscale->srcpad, gst_videoscale_link); gst_pad_set_link_function (videoscale->srcpad, gst_videoscale_link);
gst_pad_set_getcaps_function (videoscale->srcpad, gst_videoscale_getcaps); gst_pad_set_getcaps_function (videoscale->srcpad, gst_videoscale_getcaps);
gst_pad_set_fixate_function (videoscale->srcpad, gst_videoscale_src_fixate);
videoscale->inited = FALSE; videoscale->inited = FALSE;
@ -630,6 +442,7 @@ gst_videoscale_get_property (GObject * object, guint prop_id, GValue * value,
} }
} }
static gboolean static gboolean
plugin_init (GstPlugin * plugin) plugin_init (GstPlugin * plugin)
{ {