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smptealpha: Add support for all 4 ARGB formats

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...without format conversion.
This commit is contained in:
Sebastian Dröge 2010-04-17 17:43:51 +02:00
parent 055c90359a
commit ae1783e5cd
1 changed files with 205 additions and 93 deletions
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298
gst/smpte/gstsmptealpha.c
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@ -62,11 +62,12 @@ GST_DEBUG_CATEGORY_STATIC (gst_smpte_alpha_debug);
#define GST_CAT_DEFAULT gst_smpte_alpha_debug #define GST_CAT_DEFAULT gst_smpte_alpha_debug
static GstStaticPadTemplate gst_smpte_alpha_src_template = static GstStaticPadTemplate gst_smpte_alpha_src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_SRC,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") ";"
) GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_BGRA ";"
GST_VIDEO_CAPS_RGBA ";" GST_VIDEO_CAPS_ARGB)
); );
static GstStaticPadTemplate gst_smpte_alpha_sink_template = static GstStaticPadTemplate gst_smpte_alpha_sink_template =
@ -74,7 +75,8 @@ static GstStaticPadTemplate gst_smpte_alpha_sink_template =
GST_PAD_SINK, GST_PAD_SINK,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420") ";" GST_VIDEO_CAPS_YUV ("AYUV") GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420") ";" GST_VIDEO_CAPS_YUV ("AYUV")
) ";" GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_RGBA
";" GST_VIDEO_CAPS_ARGB)
); );
/* SMPTE signals and properties */ /* SMPTE signals and properties */
@ -147,14 +149,8 @@ static gboolean gst_smpte_alpha_get_unit_size (GstBaseTransform * btrans,
GstCaps * caps, guint * size); GstCaps * caps, guint * size);
static GstFlowReturn gst_smpte_alpha_transform (GstBaseTransform * trans, static GstFlowReturn gst_smpte_alpha_transform (GstBaseTransform * trans,
GstBuffer * in, GstBuffer * out); GstBuffer * in, GstBuffer * out);
static GstCaps *gst_smpte_alpha_transform_caps (GstBaseTransform * trans,
static void GstPadDirection direction, GstCaps * from);
gst_smpte_alpha_process_i420_ayuv (GstSMPTEAlpha * smpte, const guint8 * in,
guint8 * out, GstMask * mask, gint width, gint height, gint border,
gint pos);
static void gst_smpte_alpha_process_ayuv_ayuv (GstSMPTEAlpha * smpte,
const guint8 * in, guint8 * out, GstMask * mask, gint width, gint height,
gint border, gint pos);
GST_BOILERPLATE (GstSMPTEAlpha, gst_smpte_alpha, GstVideoFilter, GST_BOILERPLATE (GstSMPTEAlpha, gst_smpte_alpha, GstVideoFilter,
GST_TYPE_VIDEO_FILTER); GST_TYPE_VIDEO_FILTER);
@ -212,6 +208,8 @@ gst_smpte_alpha_class_init (GstSMPTEAlphaClass * klass)
trans_class->get_unit_size = trans_class->get_unit_size =
GST_DEBUG_FUNCPTR (gst_smpte_alpha_get_unit_size); GST_DEBUG_FUNCPTR (gst_smpte_alpha_get_unit_size);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_smpte_alpha_transform); trans_class->transform = GST_DEBUG_FUNCPTR (gst_smpte_alpha_transform);
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_smpte_alpha_transform_caps);
} }
static gboolean static gboolean
@ -260,79 +258,6 @@ mask_failed:
} }
} }
static gboolean
gst_smpte_alpha_setcaps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (btrans);
gboolean ret;
gint width, height;
smpte->process = NULL;
if (!gst_video_format_parse_caps (incaps, &smpte->in_format, &width, &height))
goto invalid_caps;
if (!gst_video_format_parse_caps (outcaps, &smpte->out_format, &width,
&height))
goto invalid_caps;
/* try to update the mask now, this will also adjust the width/height on
* success */
GST_OBJECT_LOCK (smpte);
ret =
gst_smpte_alpha_update_mask (smpte, smpte->type, smpte->invert,
smpte->depth, width, height);
GST_OBJECT_UNLOCK (smpte);
if (!ret)
goto mask_failed;
switch (smpte->out_format) {
case GST_VIDEO_FORMAT_AYUV:
switch (smpte->in_format) {
case GST_VIDEO_FORMAT_AYUV:
smpte->process = gst_smpte_alpha_process_ayuv_ayuv;
break;
case GST_VIDEO_FORMAT_I420:
smpte->process = gst_smpte_alpha_process_i420_ayuv;
break;
default:
break;
}
break;
default:
break;
}
return ret;
/* ERRORS */
invalid_caps:
{
GST_ERROR_OBJECT (smpte, "Invalid caps: %" GST_PTR_FORMAT, incaps);
return FALSE;
}
mask_failed:
{
GST_ERROR_OBJECT (smpte, "failed creating the mask");
return FALSE;
}
}
static gboolean
gst_smpte_alpha_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
guint * size)
{
gint width, height;
GstVideoFormat format;
if (!gst_video_format_parse_caps (caps, &format, &width, &height))
return FALSE;
*size = gst_video_format_get_size (format, width, height);
return TRUE;
}
static void static void
gst_smpte_alpha_init (GstSMPTEAlpha * smpte, GstSMPTEAlphaClass * klass) gst_smpte_alpha_init (GstSMPTEAlpha * smpte, GstSMPTEAlphaClass * klass)
{ {
@ -343,16 +268,47 @@ gst_smpte_alpha_init (GstSMPTEAlpha * smpte, GstSMPTEAlphaClass * klass)
smpte->invert = DEFAULT_PROP_INVERT; smpte->invert = DEFAULT_PROP_INVERT;
} }
static void #define CREATE_ARGB_FUNC(name, A, R, G, B) \
gst_smpte_alpha_finalize (GstSMPTEAlpha * smpte) static void \
{ gst_smpte_alpha_process_##name##_##name (GstSMPTEAlpha * smpte, const guint8 * in, \
if (smpte->mask) guint8 * out, GstMask * mask, gint width, gint height, gint border, \
gst_mask_destroy (smpte->mask); gint pos) \
smpte->mask = NULL; { \
gint i, j; \
G_OBJECT_CLASS (parent_class)->finalize ((GObject *) smpte); const guint32 *maskp; \
gint value; \
gint min, max; \
\
if (border == 0) \
border++; \
\
min = pos - border; \
max = pos; \
GST_DEBUG_OBJECT (smpte, "pos %d, min %d, max %d, border %d", pos, min, max, \
border); \
\
maskp = mask->data; \
\
/* we basically copy the source to dest but we scale the alpha channel with \
* the mask */ \
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
value = *maskp++; \
out[A] = (in[A] * ((CLAMP (value, min, max) - min) << 8) / border) >> 8; \
out[R] = in[R]; \
out[G] = in[G]; \
out[B] = in[B]; \
out += 4; \
in += 4; \
} \
} \
} }
CREATE_ARGB_FUNC (argb, 0, 1, 2, 3);
CREATE_ARGB_FUNC (bgra, 3, 2, 1, 0);
CREATE_ARGB_FUNC (abgr, 0, 3, 2, 1);
CREATE_ARGB_FUNC (rgba, 3, 0, 1, 2);
static void static void
gst_smpte_alpha_process_ayuv_ayuv (GstSMPTEAlpha * smpte, const guint8 * in, gst_smpte_alpha_process_ayuv_ayuv (GstSMPTEAlpha * smpte, const guint8 * in,
guint8 * out, GstMask * mask, gint width, gint height, gint border, guint8 * out, GstMask * mask, gint width, gint height, gint border,
@ -504,6 +460,162 @@ not_negotiated:
} }
} }
static GstCaps *
gst_smpte_alpha_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * from)
{
GstCaps *to = gst_caps_copy (from);
GstStructure *s;
gst_caps_truncate (to);
s = gst_caps_get_structure (to, 0);
if (gst_structure_has_name (s, "video/x-raw-yuv")) {
GValue list = { 0, };
GValue val = { 0, };
gst_structure_remove_field (s, "format");
g_value_init (&list, GST_TYPE_LIST);
g_value_init (&val, GST_TYPE_FOURCC);
gst_value_set_fourcc (&val, GST_STR_FOURCC ("AYUV"));
gst_value_list_append_value (&list, &val);
g_value_reset (&val);
gst_value_set_fourcc (&val, GST_STR_FOURCC ("I420"));
gst_value_list_append_value (&list, &val);
g_value_reset (&val);
gst_value_set_fourcc (&val, GST_STR_FOURCC ("YV12"));
gst_value_list_append_value (&list, &val);
g_value_unset (&val);
gst_structure_set_value (s, "format", &list);
g_value_unset (&list);
} else if (!gst_structure_has_name (s, "video/x-raw-rgb")) {
gst_caps_unref (to);
to = gst_caps_new_empty ();
}
return to;
}
static gboolean
gst_smpte_alpha_setcaps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (btrans);
gboolean ret;
gint width, height;
smpte->process = NULL;
if (!gst_video_format_parse_caps (incaps, &smpte->in_format, &width, &height))
goto invalid_caps;
if (!gst_video_format_parse_caps (outcaps, &smpte->out_format, &width,
&height))
goto invalid_caps;
/* try to update the mask now, this will also adjust the width/height on
* success */
GST_OBJECT_LOCK (smpte);
ret =
gst_smpte_alpha_update_mask (smpte, smpte->type, smpte->invert,
smpte->depth, width, height);
GST_OBJECT_UNLOCK (smpte);
if (!ret)
goto mask_failed;
switch (smpte->out_format) {
case GST_VIDEO_FORMAT_AYUV:
switch (smpte->in_format) {
case GST_VIDEO_FORMAT_AYUV:
smpte->process = gst_smpte_alpha_process_ayuv_ayuv;
break;
case GST_VIDEO_FORMAT_I420:
smpte->process = gst_smpte_alpha_process_i420_ayuv;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_ARGB:
switch (smpte->in_format) {
case GST_VIDEO_FORMAT_ARGB:
smpte->process = gst_smpte_alpha_process_argb_argb;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_RGBA:
switch (smpte->in_format) {
case GST_VIDEO_FORMAT_RGBA:
smpte->process = gst_smpte_alpha_process_rgba_rgba;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_ABGR:
switch (smpte->in_format) {
case GST_VIDEO_FORMAT_ABGR:
smpte->process = gst_smpte_alpha_process_abgr_abgr;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_BGRA:
switch (smpte->in_format) {
case GST_VIDEO_FORMAT_BGRA:
smpte->process = gst_smpte_alpha_process_bgra_bgra;
break;
default:
break;
}
break;
default:
break;
}
return ret;
/* ERRORS */
invalid_caps:
{
GST_ERROR_OBJECT (smpte, "Invalid caps: %" GST_PTR_FORMAT, incaps);
return FALSE;
}
mask_failed:
{
GST_ERROR_OBJECT (smpte, "failed creating the mask");
return FALSE;
}
}
static gboolean
gst_smpte_alpha_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
guint * size)
{
gint width, height;
GstVideoFormat format;
if (!gst_video_format_parse_caps (caps, &format, &width, &height))
return FALSE;
*size = gst_video_format_get_size (format, width, height);
return TRUE;
}
static void
gst_smpte_alpha_finalize (GstSMPTEAlpha * smpte)
{
if (smpte->mask)
gst_mask_destroy (smpte->mask);
smpte->mask = NULL;
G_OBJECT_CLASS (parent_class)->finalize ((GObject *) smpte);
}
static void static void
gst_smpte_alpha_set_property (GObject * object, guint prop_id, gst_smpte_alpha_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec) const GValue * value, GParamSpec * pspec)