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agingtv: Store and update state inside the instance struct

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This makes the coloraging effect and pits effect visible.
This commit is contained in:
Sebastian Dröge 2009-06-15 15:05:58 +02:00
parent dea67f3d96
commit 865f11192c
1 changed files with 34 additions and 25 deletions
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59
gst/effectv/gstaging.c
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@ -76,7 +76,8 @@ struct _GstAgingTV
GstVideoFilter videofilter; GstVideoFilter videofilter;
gint width, height; gint width, height;
gint aging_mode;
gint coloraging_state;
scratch scratches[SCRATCH_MAX]; scratch scratches[SCRATCH_MAX];
gint scratch_lines; gint scratch_lines;
@ -157,26 +158,36 @@ gst_agingtv_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
return ret; return ret;
} }
static unsigned int static inline guint
fastrand (void) fastrand (void)
{ {
static unsigned int fastrand_val; static guint fastrand_val;
return (fastrand_val = fastrand_val * 1103515245 + 12345); return (fastrand_val = fastrand_val * 1103515245 + 12345);
} }
static void static void
coloraging (guint32 * src, guint32 * dest, gint video_area) coloraging (guint32 * src, guint32 * dest, gint video_area, gint * c)
{ {
guint32 a, b; guint32 a, b;
gint i; gint i;
gint c_tmp = *c;
for (i = video_area; i; i--) { c_tmp -= (gint) (fastrand ()) >> 28;
if (c_tmp < 0)
c_tmp = 0;
if (c_tmp > 0x18)
c_tmp = 0x18;
for (i = 0; i < video_area; i++) {
a = *src++; a = *src++;
b = (a & 0xfcfcfc) >> 2; b = (a & 0xfcfcfc) >> 2;
*dest++ = a - b + 0x181818 + ((fastrand () >> 8) & 0x101010); *dest++ =
a - b + (c_tmp | (c_tmp << 8) | (c_tmp << 16)) +
((fastrand () >> 8) & 0x101010);
} }
*c = c_tmp;
} }
@ -230,17 +241,17 @@ scratching (scratch * scratches, gint scratch_lines, guint32 * dest, gint width,
} }
static void static void
dusts (guint32 * dest, gint width, gint height, gint dust_interval, dusts (guint32 * dest, gint width, gint height, gint * dust_interval,
gint area_scale) gint area_scale)
{ {
int i, j; gint i, j;
int dnum; gint dnum;
int d, len; gint d, len;
guint x, y; guint x, y;
if (dust_interval == 0) { if (*dust_interval == 0) {
if ((fastrand () & 0xf0000000) == 0) { if ((fastrand () & 0xf0000000) == 0) {
dust_interval = fastrand () >> 29; *dust_interval = fastrand () >> 29;
} }
return; return;
} }
@ -262,27 +273,27 @@ dusts (guint32 * dest, gint width, gint height, gint dust_interval,
d = (d + fastrand () % 3 - 1) & 7; d = (d + fastrand () % 3 - 1) & 7;
} }
} }
dust_interval--; *dust_interval = *dust_interval - 1;
} }
static void static void
pits (guint32 * dest, gint width, gint height, gint area_scale, pits (guint32 * dest, gint width, gint height, gint area_scale,
gint pits_interval) gint * pits_interval)
{ {
int i, j; gint i, j;
int pnum, size, pnumscale; gint pnum, size, pnumscale;
guint x, y; guint x, y;
pnumscale = area_scale * 2; pnumscale = area_scale * 2;
if (pits_interval) { if (*pits_interval) {
pnum = pnumscale + (fastrand () % pnumscale); pnum = pnumscale + (fastrand () % pnumscale);
pits_interval--; *pits_interval = *pits_interval - 1;
} else { } else {
pnum = fastrand () % pnumscale; pnum = fastrand () % pnumscale;
if ((fastrand () & 0xf8000000) == 0) { if ((fastrand () & 0xf8000000) == 0) {
pits_interval = (fastrand () >> 28) + 20; *pits_interval = (fastrand () >> 28) + 20;
} }
} }
for (i = 0; i < pnum; i++) { for (i = 0; i < pnum; i++) {
@ -310,22 +321,20 @@ gst_agingtv_transform (GstBaseTransform * trans, GstBuffer * in,
GstAgingTV *agingtv = GST_AGINGTV (trans); GstAgingTV *agingtv = GST_AGINGTV (trans);
gint width = agingtv->width; gint width = agingtv->width;
gint height = agingtv->height; gint height = agingtv->height;
int video_size = width * height; gint video_size = width * height;
guint32 *src = (guint32 *) GST_BUFFER_DATA (in); guint32 *src = (guint32 *) GST_BUFFER_DATA (in);
guint32 *dest = (guint32 *) GST_BUFFER_DATA (out); guint32 *dest = (guint32 *) GST_BUFFER_DATA (out);
gint area_scale = width * height / 64 / 480; gint area_scale = width * height / 64 / 480;
GstFlowReturn ret = GST_FLOW_OK; GstFlowReturn ret = GST_FLOW_OK;
gst_buffer_copy_metadata (out, in, GST_BUFFER_COPY_TIMESTAMPS);
if (area_scale <= 0) if (area_scale <= 0)
area_scale = 1; area_scale = 1;
coloraging (src, dest, video_size); coloraging (src, dest, video_size, &agingtv->coloraging_state);
scratching (agingtv->scratches, agingtv->scratch_lines, dest, width, height); scratching (agingtv->scratches, agingtv->scratch_lines, dest, width, height);
pits (dest, width, height, area_scale, agingtv->pits_interval); pits (dest, width, height, area_scale, &agingtv->pits_interval);
if (area_scale > 1) if (area_scale > 1)
dusts (dest, width, height, agingtv->dust_interval, area_scale); dusts (dest, width, height, &agingtv->dust_interval, area_scale);
return ret; return ret;
} }