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videolevels: Remove signed support

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Ahead of its time, no other element supports signed, so causes more trouble than it's worth.
This commit is contained in:
Joshua M. Doe 2012-06-12 15:01:32 -04:00
parent 6efc1eb913
commit 07975dbe56
2 changed files with 9 additions and 53 deletions
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61
gst/videoadjust/gstvideolevels.c
View File

@ -98,15 +98,6 @@ GST_STATIC_PAD_TEMPLATE ("sink",
"endianness = (int) {LITTLE_ENDIAN, BIG_ENDIAN}, " \
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE \
";" \
"video/x-raw-gray, " \
"bpp = (int) [1, 16], " \
"depth = (int) 16, " \
"endianness = (int) {LITTLE_ENDIAN, BIG_ENDIAN}, " \
"signed = (bool) {true, false}, " \
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE
)
);
@ -418,11 +409,9 @@ gst_videolevels_transform_caps (GstBaseTransform * base,
NULL);
structure = gst_caps_get_structure (newcaps, 0);
gst_structure_remove_field (structure, "endianness");
gst_structure_remove_field (structure, "signed");
}
else {
GValue endianness = {0};
GValue signed_list = {0};
GValue ival = {0};
GST_DEBUG ("Pad direction is src");
@ -441,14 +430,6 @@ gst_videolevels_transform_caps (GstBaseTransform * base,
g_value_set_int (&ival, G_BIG_ENDIAN);
gst_value_list_append_value (&endianness, &ival);
gst_structure_set_value (structure, "endianness", &endianness);
/* add signed/unsigned to caps */
g_value_init (&signed_list, GST_TYPE_LIST);
g_value_set_int (&ival, FALSE);
gst_value_list_append_value (&signed_list, &ival);
g_value_set_int (&ival, TRUE);
gst_value_list_append_value (&signed_list, &ival);
gst_structure_set_value (structure, "signed", &signed_list);
}
GST_DEBUG_OBJECT (newcaps, "allowed caps are");
@ -493,11 +474,6 @@ gst_videolevels_set_caps (GstBaseTransform * base, GstCaps * incaps,
if (!res)
return FALSE;
/* retrieve input caps sign, or set to false if field doesn't exist */
if (!gst_structure_get (structure,
"signed", G_TYPE_BOOLEAN, &levels->is_signed_in))
levels->is_signed_in = FALSE;
/* retrieve output bpp and depth */
structure = gst_caps_get_structure (outcaps, 0);
res = gst_structure_get (structure,
@ -629,7 +605,6 @@ static void gst_videolevels_reset(GstVideoLevels* videolevels)
videolevels->bpp_in = 0;
videolevels->depth_in = 0;
videolevels->endianness_in = 0;
videolevels->is_signed_in = FALSE;
videolevels->stride_out = 0;
videolevels->bpp_out = 0;
@ -847,37 +822,19 @@ gst_videolevels_calculate_histogram (GstVideoLevels * videolevels, guint16 * dat
memset (hist, 0, sizeof(gint)*nbins);
GST_DEBUG ("Calculating histogram");
if (!videolevels->is_signed_in) {
if (videolevels->endianness_in == G_BYTE_ORDER) {
for (r = 0; r < videolevels->height; r++) {
for (c = 0; c < videolevels->width; c++) {
/* GST_DEBUG ("(%d, %d) = %d, hist[%d] = %d", r, c, data [c + r * videolevels->stride_in / 2], GINT_CLAMP (data [c + r * videolevels->stride_in / 2] * factor, 0, nbins - 1),
hist [GINT_CLAMP (data [c + r * videolevels->stride_in / 2] * factor, 0, nbins - 1)] + 1);*/
hist [GINT_CLAMP (data [c + r * videolevels->stride_in / 2] * factor, 0, nbins - 1)]++;
}
}
}
else {
for (r = 0; r < videolevels->height; r++) {
for (c = 0; c < videolevels->width; c++) {
hist [GINT_CLAMP (GUINT16_FROM_BE (data [c + r * videolevels->stride_in / 2]) * factor, 0, nbins - 1)]++;
}
if (videolevels->endianness_in == G_BYTE_ORDER) {
for (r = 0; r < videolevels->height; r++) {
for (c = 0; c < videolevels->width; c++) {
/* GST_DEBUG ("(%d, %d) = %d, hist[%d] = %d", r, c, data [c + r * videolevels->stride_in / 2], GINT_CLAMP (data [c + r * videolevels->stride_in / 2] * factor, 0, nbins - 1),
hist [GINT_CLAMP (data [c + r * videolevels->stride_in / 2] * factor, 0, nbins - 1)] + 1);*/
hist [GINT_CLAMP (data [c + r * videolevels->stride_in / 2] * factor, 0, nbins - 1)]++;
}
}
}
else {
if (videolevels->endianness_in == G_BYTE_ORDER) {
for (r = 0; r < videolevels->height; r++) {
for (c = 0; c < videolevels->width; c++) {
hist [GINT_CLAMP ((data [c + r * videolevels->stride_in / 2] + 32767) * factor, 0, nbins - 1)]++;
}
}
}
else {
for (r = 0; r < videolevels->height; r++) {
for (c = 0; c < videolevels->width; c++) {
hist [GINT_CLAMP ((GUINT16_FROM_BE (data [c + r * videolevels->stride_in / 2]) + 32767) * factor, 0, nbins - 1)]++;
}
for (r = 0; r < videolevels->height; r++) {
for (c = 0; c < videolevels->width; c++) {
hist [GINT_CLAMP (GUINT16_FROM_BE (data [c + r * videolevels->stride_in / 2]) * factor, 0, nbins - 1)]++;
}
}
}

1
gst/videoadjust/gstvideolevels.h
View File

@ -76,7 +76,6 @@ struct _GstVideoLevels
gint bpp_in;
gint depth_in;
gint endianness_in;
gboolean is_signed_in;
guint stride_out;
gint bpp_out;