mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-25 01:30:38 +00:00
Code Issues 1 Projects Releases Wiki Activity

invtelecine: Add 4:2:2 formats

Browse source
This commit is contained in:
David Schleef 2010-05-22 11:30:54 -07:00
parent 750cdc912b
commit c439a6bc36
1 changed files with 92 additions and 45 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

137
gst/invtelecine/gstinvtelecine.c
View file

@ -92,7 +92,7 @@ static GstStaticPadTemplate gst_invtelecine_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{YUY2,UYVY,I420,YV12}")
)
);
@ -100,7 +100,7 @@ static GstStaticPadTemplate gst_invtelecine_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{YUY2,UYVY,I420,YV12}")
)
);
@ -270,23 +270,52 @@ gst_invtelecine_compare_fields (GstInvtelecine * invtelecine, int field1,
if (j == 0 || j == invtelecine->height - 1)
continue;
data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
invtelecine->width * j;
data2_1 =
GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
invtelecine->width * (j - 1);
data2_2 =
GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
invtelecine->width * (j + 1);
if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
invtelecine->format == GST_VIDEO_FORMAT_YV12) {
data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
invtelecine->width * j;
data2_1 =
GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
invtelecine->width * (j - 1);
data2_2 =
GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
invtelecine->width * (j + 1);
linesum = 0;
for (i = 1; i < invtelecine->width - 1; i++) {
have = data1[i - 1] + data1[i + 1];
hdiff = abs (data1[i - 1] - data1[i + 1]);
vave = data2_1[i] + data2_2[i];
vdiff = abs (data2_1[i] - data2_2[i]);
den = MAX (1, MAX (hdiff, vdiff));
linesum += (have - vave) * (have - vave) / (den * den);
/* planar 4:2:0 */
linesum = 0;
for (i = 1; i < invtelecine->width - 1; i++) {
have = data1[i - 1] + data1[i + 1];
hdiff = abs (data1[i - 1] - data1[i + 1]);
vave = data2_1[i] + data2_2[i];
vdiff = abs (data2_1[i] - data2_2[i]);
den = MAX (1, MAX (hdiff, vdiff));
linesum += (have - vave) * (have - vave) / (den * den);
}
} else {
data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
invtelecine->width * 2 * j;
data2_1 =
GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
invtelecine->width * 2 * (j - 1);
data2_2 =
GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
invtelecine->width * 2 * (j + 1);
if (invtelecine->format == GST_VIDEO_FORMAT_UYVY) {
data1++;
data2_1++;
data2_2++;
}
/* packed 4:2:2 */
linesum = 0;
for (i = 1; i < invtelecine->width - 1; i++) {
have = data1[(i - 1) * 2] + data1[(i + 1) * 2];
hdiff = abs (data1[(i - 1) * 2] - data1[(i + 1) * 2]);
vave = data2_1[i * 2] + data2_2[i * 2];
vdiff = abs (data2_1[i * 2] - data2_2[i * 2]);
den = MAX (1, MAX (hdiff, vdiff));
linesum += (have - vave) * (have - vave) / (den * den);
}
}
sum += linesum;
}
@ -669,31 +698,44 @@ gst_invtelecine_process (GstInvtelecine * invtelecine, gboolean flush)
}
static void
copy_field (GstBuffer * d, GstBuffer * s, int field_index, int width,
int height)
copy_field (GstInvtelecine * invtelecine, GstBuffer * d, GstBuffer * s,
int field_index)
{
int j;
guint8 *dest;
guint8 *src;
int width = invtelecine->width;
int height = invtelecine->height;
for (j = field_index; j < height; j += 2) {
dest = GST_BUFFER_DATA (d) + j * width;
src = GST_BUFFER_DATA (s) + j * width;
memcpy (dest, src, width);
}
for (j = field_index; j < height / 2; j += 2) {
dest = GST_BUFFER_DATA (d) + width * height + j * width / 2;
src = GST_BUFFER_DATA (s) + width * height + j * width / 2;
memcpy (dest, src, width / 2);
}
for (j = field_index; j < height / 2; j += 2) {
dest =
GST_BUFFER_DATA (d) + width * height + width / 2 * height / 2 +
j * width / 2;
src =
GST_BUFFER_DATA (s) + width * height + width / 2 * height / 2 +
j * width / 2;
memcpy (dest, src, width / 2);
if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
invtelecine->format == GST_VIDEO_FORMAT_YV12) {
/* planar 4:2:0 */
for (j = field_index; j < height; j += 2) {
dest = GST_BUFFER_DATA (d) + j * width;
src = GST_BUFFER_DATA (s) + j * width;
memcpy (dest, src, width);
}
for (j = field_index; j < height / 2; j += 2) {
dest = GST_BUFFER_DATA (d) + width * height + j * width / 2;
src = GST_BUFFER_DATA (s) + width * height + j * width / 2;
memcpy (dest, src, width / 2);
}
for (j = field_index; j < height / 2; j += 2) {
dest =
GST_BUFFER_DATA (d) + width * height + width / 2 * height / 2 +
j * width / 2;
src =
GST_BUFFER_DATA (s) + width * height + width / 2 * height / 2 +
j * width / 2;
memcpy (dest, src, width / 2);
}
} else {
/* packed 4:2:2 */
for (j = field_index; j < height; j += 2) {
dest = GST_BUFFER_DATA (d) + j * width * 2;
src = GST_BUFFER_DATA (s) + j * width * 2;
memcpy (dest, src, width * 2);
}
}
}
@ -705,14 +747,19 @@ gst_invtelecine_output_fields (GstInvtelecine * invtelecine, int num_fields)
field_index = invtelecine->fifo[0].field_index;
buffer =
gst_buffer_new_and_alloc (invtelecine->width * invtelecine->height * 3 /
2);
if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
invtelecine->format == GST_VIDEO_FORMAT_YV12) {
buffer =
gst_buffer_new_and_alloc (invtelecine->width * invtelecine->height * 3 /
2);
} else {
buffer =
gst_buffer_new_and_alloc (invtelecine->width * invtelecine->height * 2);
}
copy_field (buffer, invtelecine->fifo[0].buffer, field_index,
invtelecine->width, invtelecine->height);
copy_field (buffer, invtelecine->fifo[1].buffer, field_index ^ 1,
invtelecine->width, invtelecine->height);
copy_field (invtelecine, buffer, invtelecine->fifo[0].buffer, field_index);
copy_field (invtelecine, buffer, invtelecine->fifo[1].buffer,
field_index ^ 1);
gst_buffer_set_caps (buffer, GST_BUFFER_CAPS (invtelecine->fifo[0].buffer));