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videoscale: fix negotiation after addition of new formats and methods

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Now that we no longer support all methods for all formats, we
need to cater for that in the transform function: we can't
transform formats not supported by the currently-selected
mehod.

make check, folks. It's da bomb.
This commit is contained in:
Tim-Philipp Müller 2012-02-26 18:19:57 +00:00
parent 92ebd6bd2a
commit 63d1316c0f
2 changed files with 128 additions and 1 deletions
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125
gst/videoscale/gstvideoscale.c
View file

@ -424,10 +424,118 @@ gst_video_scale_get_property (GObject * object, guint prop_id, GValue * value,
}
}
#define NEAREST (1 << GST_VIDEO_SCALE_NEAREST)
#define BILINEAR (1 << GST_VIDEO_SCALE_BILINEAR)
#define FOURTAP (1 << GST_VIDEO_SCALE_4TAP)
#define LANCZOS (1 << GST_VIDEO_SCALE_LANCZOS)
/* or we could just do lookups via table[format] if we could be bothered.. */
static const struct
{
GstVideoFormat format;
guint8 methods;
} formats_methods_table[] = {
{
GST_VIDEO_FORMAT_RGBx, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_xRGB, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_BGRx, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_xBGR, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_RGBA, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_ARGB, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_BGRA, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_ABGR, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_AYUV, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_ARGB64, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_AYUV64, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_RGB, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_BGR, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_v308, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_YUY2, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_YVYU, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_UYVY, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_Y800, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_GRAY8, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_GRAY16_LE, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_GRAY16_BE, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_Y16, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_I420, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_YV12, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_Y444, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_Y42B, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_Y41B, NEAREST | BILINEAR | FOURTAP | LANCZOS}, {
GST_VIDEO_FORMAT_NV12, NEAREST | BILINEAR}, {
GST_VIDEO_FORMAT_RGB16, NEAREST | BILINEAR | FOURTAP}, {
GST_VIDEO_FORMAT_RGB15, NEAREST | BILINEAR | FOURTAP}
};
static gboolean
gst_video_scale_format_supported_for_method (GstVideoFormat format,
GstVideoScaleMethod method)
{
int i;
for (i = 0; i < G_N_ELEMENTS (formats_methods_table); ++i) {
if (formats_methods_table[i].format == format)
return ((formats_methods_table[i].methods & (1 << method)) != 0);
}
return FALSE;
}
static gboolean
gst_video_scale_transform_supported (GstVideoScale * videoscale,
GstVideoScaleMethod method, GstStructure * structure)
{
const GValue *val;
GstVideoFormat fmt;
gboolean supported = TRUE;
GstStructure *s;
GstCaps *c;
/* we support these methods for all formats */
if (method == GST_VIDEO_SCALE_NEAREST || method == GST_VIDEO_SCALE_BILINEAR)
return TRUE;
/* we need fixed caps if we want to use gst_video_parse_caps() */
s = gst_structure_new (gst_structure_get_name (structure),
"width", G_TYPE_INT, 1, "height", G_TYPE_INT, 1, NULL);
if ((val = gst_structure_get_value (structure, "format"))) {
gst_structure_set_value (s, "format", val);
} else {
if ((val = gst_structure_get_value (structure, "endianness")))
gst_structure_set_value (s, "endianness", val);
if ((val = gst_structure_get_value (structure, "red_mask")))
gst_structure_set_value (s, "red_mask", val);
if ((val = gst_structure_get_value (structure, "blue_mask")))
gst_structure_set_value (s, "blue_mask", val);
if ((val = gst_structure_get_value (structure, "green_mask")))
gst_structure_set_value (s, "green_mask", val);
if ((val = gst_structure_get_value (structure, "alpha_mask")))
gst_structure_set_value (s, "alpha_mask", val);
if ((val = gst_structure_get_value (structure, "depth")))
gst_structure_set_value (s, "depth", val);
if ((val = gst_structure_get_value (structure, "bpp")))
gst_structure_set_value (s, "bpp", val);
}
c = gst_caps_new_full (s, NULL);
if (!gst_video_format_parse_caps (c, &fmt, NULL, NULL)) {
GST_ERROR_OBJECT (videoscale, "couldn't parse %" GST_PTR_FORMAT, c);
} else if (!gst_video_scale_format_supported_for_method (fmt, method)) {
supported = FALSE;
}
GST_LOG_OBJECT (videoscale, "method %d %ssupported for format %d",
method, (supported) ? "" : "not ", fmt);
gst_caps_unref (c);
return supported;
}
static GstCaps *
gst_video_scale_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
{
GstVideoScale *videoscale = GST_VIDEO_SCALE (trans);
GstVideoScaleMethod method;
GstCaps *ret;
GstStructure *structure;
@ -441,6 +549,13 @@ gst_video_scale_transform_caps (GstBaseTransform * trans,
ret = gst_caps_copy (caps);
structure = gst_structure_copy (gst_caps_get_structure (ret, 0));
GST_OBJECT_LOCK (videoscale);
method = videoscale->method;
GST_OBJECT_UNLOCK (videoscale);
if (!gst_video_scale_transform_supported (videoscale, method, structure))
goto format_not_supported;
gst_structure_set (structure,
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
@ -452,9 +567,19 @@ gst_video_scale_transform_caps (GstBaseTransform * trans,
}
gst_caps_append_structure (ret, structure);
done:
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
return ret;
format_not_supported:
{
gst_structure_free (structure);
gst_caps_unref (ret);
ret = gst_caps_new_empty ();
goto done;
}
}
static gboolean

4
tests/check/elements/videoscale.c
View file

@ -221,7 +221,7 @@ test_passthrough (int method)
/* skip formats that ffmpegcolorspace can't handle */
if (caps_are_64bpp (caps))
continue;
goto skip;
GST_DEBUG ("Running test for caps '%" GST_PTR_FORMAT "'"
" from %dx%u to %dx%d with method %d", caps, src_width, src_height,
@ -251,6 +251,8 @@ test_passthrough (int method)
g_list_free (sink_buffers);
sink_buffers = NULL;
skip:
gst_caps_unref (caps);
p++;
}