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misbirunpack: add shift and swap property for non-compliant sources

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This commit is contained in:
Joshua M. Doe 2018-08-14 12:54:48 -04:00
parent f238398851
commit 9142674df2
2 changed files with 55 additions and 8 deletions
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59
gst/misb/gstmisbirunpack.c
View File

@ -55,10 +55,14 @@ enum
{
PROP_0,
PROP_OFFSET,
PROP_SHIFT,
PROP_SWAP,
PROP_LAST
};
#define DEFAULT_PROP_OFFSET 64
#define DEFAULT_PROP_OFFSET -64
#define DEFAULT_PROP_SHIFT 8
#define DEFAULT_PROP_SWAP FALSE
/* the capabilities of the inputs and outputs */
static GstStaticPadTemplate gst_misb_ir_unpack_sink_template =
@ -152,8 +156,17 @@ gst_misb_ir_unpack_class_init (GstMisbIrUnpackClass * klass)
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_OFFSET, g_param_spec_int ("offset",
"Offset value",
"Offset value to apply during unpacking", 0, 1023,
"Offset value to apply during unpacking", -1023, 1023,
DEFAULT_PROP_OFFSET, G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_SHIFT, g_param_spec_uint ("shift",
"Shift value",
"Bits to left shift luminance component during unpacking", 0, 15,
DEFAULT_PROP_SHIFT, G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_SWAP, g_param_spec_boolean ("swap", "Swap luma and chroma",
"Whether to swap luminance and chrominance components",
DEFAULT_PROP_SWAP, G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_misb_ir_unpack_sink_template));
@ -181,6 +194,9 @@ gst_misb_ir_unpack_init (GstMisbIrUnpack * filt)
GST_DEBUG_OBJECT (filt, "init class instance");
filt->offset_value = DEFAULT_PROP_OFFSET;
filt->shift_value = DEFAULT_PROP_SHIFT;
filt->swap = DEFAULT_PROP_SWAP;
gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filt), FALSE);
gst_misb_ir_unpack_reset (filt);
@ -198,6 +214,12 @@ gst_misb_ir_unpack_set_property (GObject * object, guint prop_id,
case PROP_OFFSET:
filt->offset_value = g_value_get_int (value);
break;
case PROP_SHIFT:
filt->shift_value = g_value_get_uint (value);
break;
case PROP_SWAP:
filt->swap = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -216,6 +238,12 @@ gst_misb_ir_unpack_get_property (GObject * object, guint prop_id,
case PROP_OFFSET:
g_value_set_int (value, filt->offset_value);
break;
case PROP_SHIFT:
g_value_set_uint (value, filt->shift_value);
break;
case PROP_SWAP:
g_value_set_boolean (value, filt->swap);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -289,7 +317,8 @@ gst_misb_ir_unpack_transform_frame (GstVideoFilter * filter,
{
GstMisbIrUnpack *filt = GST_MISB_IR_UNPACK (filter);
GTimer *timer = NULL;
guint offset = filt->offset_value;
gint16 offset = filt->offset_value;
guint shift = filt->shift_value;
gint x, y;
guint32 *src;
guint16 *dst;
@ -308,19 +337,35 @@ gst_misb_ir_unpack_transform_frame (GstVideoFilter * filter,
for (x = 0; x < GST_VIDEO_FRAME_COMP_WIDTH (in_frame, 0);) {
guint32 word0 = *src++;
guint32 word1 = *src++;
guint16 luma, chroma;
guint16 luma, chroma, temp;
chroma = word0 & 0x3ff;
luma = (word0 & 0xffc00) >> 10;
dst[x++] = ((chroma - offset) & 0xff) | (((luma - offset) & 0xff) << 8);
if (filt->swap) {
temp = chroma;
chroma = luma;
luma = temp;
}
dst[x++] =
((chroma + offset) & 0xff) | (((luma + offset) & 0xff) << shift);
chroma = (word0 & 0x3ff00000) >> 20;
luma = word1 & 0x3ff;
dst[x++] = (chroma - offset) & 0xff | ((luma - offset) & 0xff) << 8;
if (filt->swap) {
temp = chroma;
chroma = luma;
luma = temp;
}
dst[x++] = (chroma + offset) & 0xff | ((luma + offset) & 0xff) << shift;
chroma = (word1 & 0xffc00) >> 10;
luma = (word1 & 0x3ff00000) >> 20;
dst[x++] = (chroma - offset) & 0xff | ((luma - offset) & 0xff) << 8;
if (filt->swap) {
temp = chroma;
chroma = luma;
luma = temp;
}
dst[x++] = (chroma + offset) & 0xff | ((luma + offset) & 0xff) << shift;
}
}

4
gst/misb/gstmisbirunpack.h
View File

@ -60,7 +60,9 @@ struct _GstMisbIrUnpack
GstVideoInfo info_out;
/* properties */
guint offset_value;
gint offset_value;
guint shift_value;
gboolean swap;
};
struct _GstMisbIrUnpackClass