static GstFlowReturn
gst_pixbufscale_transform_frame (GstVideoFilter * filter,
GstVideoFrame * in, GstVideoFrame * out)
{
GstPixbufScale *scale;
GdkPixbuf *src_pixbuf, *dest_pixbuf;
scale = GST_PIXBUFSCALE (filter);
src_pixbuf =
gdk_pixbuf_new_from_data (GST_VIDEO_FRAME_COMP_DATA (in, 0),
GDK_COLORSPACE_RGB, FALSE, 8, GST_VIDEO_FRAME_WIDTH (in),
GST_VIDEO_FRAME_HEIGHT (in),
GST_VIDEO_FRAME_COMP_STRIDE (in, 0), NULL, NULL);
dest_pixbuf =
gdk_pixbuf_new_from_data (GST_VIDEO_FRAME_COMP_DATA (out, 0),
GDK_COLORSPACE_RGB, FALSE, 8, GST_VIDEO_FRAME_WIDTH (out),
GST_VIDEO_FRAME_HEIGHT (out),
GST_VIDEO_FRAME_COMP_STRIDE (out, 0), NULL, NULL);
gdk_pixbuf_scale (src_pixbuf, dest_pixbuf, 0, 0,
GST_VIDEO_FRAME_WIDTH (out),
GST_VIDEO_FRAME_HEIGHT (out), 0, 0,
(double) GST_VIDEO_FRAME_WIDTH (out) / GST_VIDEO_FRAME_WIDTH (in),
(double) GST_VIDEO_FRAME_HEIGHT (out) / GST_VIDEO_FRAME_HEIGHT (in),
scale->gdk_method);
g_object_unref (src_pixbuf);
g_object_unref (dest_pixbuf);
return GST_FLOW_OK;
}
static void
fill_image_packed8_3 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
const guint8 *data_in, *tmp;
gint *data_out[3];
gint sstride;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data_in = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data_out[0] = image->comps[0].data;
data_out[1] = image->comps[1].data;
data_out[2] = image->comps[2].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out[0] = tmp[1];
*data_out[1] = tmp[2];
*data_out[2] = tmp[3];
tmp += 4;
data_out[0]++;
data_out[1]++;
data_out[2]++;
}
data_in += sstride;
}
}
/* this function does the actual processing
*/
static GstFlowReturn
gst_yuv_to_rgb_transform_frame (GstVideoFilter *filter, GstVideoFrame *in_frame, GstVideoFrame *out_frame)
{
GstYuvToRgb *rgbtoyuv = GST_YUVTORGB_CAST (filter);
gint width, height, stride;
gint y_stride, uv_stride;
guint32 *out_data;
guint8 *y_in, *u_in, *v_in;
y_stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
uv_stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1);
y_in = (guint8*) GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
u_in = (guint8*) GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1);
v_in = (guint8*) GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2);
width = GST_VIDEO_FRAME_WIDTH (out_frame);
height = GST_VIDEO_FRAME_HEIGHT (out_frame);
stride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
out_data = (guint32*) GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
// GST_INFO ("DEBUG_INFO: rgbtoyuv::transform_frame: ");
// GST_INFO ("in stride: %d; out stride: %d %d\n", stride, y_stride, uv_stride);
libyuv::I420ToARGB (y_in, y_stride,
u_in, uv_stride,
v_in, uv_stride,
(guint8*)out_data, stride,
width, height);
return GST_FLOW_OK;
}
static void
gst_smpte_blend_i420 (GstVideoFrame * frame1, GstVideoFrame * frame2,
GstVideoFrame * oframe, GstMask * mask, gint border, gint pos)
{
guint32 *maskp;
gint value;
gint i, j;
gint min, max;
guint8 *in1, *in2, *out, *in1u, *in1v, *in2u, *in2v, *outu, *outv;
gint width, height;
if (border == 0)
border++;
min = pos - border;
max = pos;
width = GST_VIDEO_FRAME_WIDTH (frame1);
height = GST_VIDEO_FRAME_HEIGHT (frame1);
in1 = GST_VIDEO_FRAME_COMP_DATA (frame1, 0);
in2 = GST_VIDEO_FRAME_COMP_DATA (frame2, 0);
out = GST_VIDEO_FRAME_COMP_DATA (oframe, 0);
in1u = GST_VIDEO_FRAME_COMP_DATA (frame1, 1);
in1v = GST_VIDEO_FRAME_COMP_DATA (frame1, 2);
in2u = GST_VIDEO_FRAME_COMP_DATA (frame2, 1);
in2v = GST_VIDEO_FRAME_COMP_DATA (frame2, 2);
outu = GST_VIDEO_FRAME_COMP_DATA (oframe, 1);
outv = GST_VIDEO_FRAME_COMP_DATA (oframe, 2);
maskp = mask->data;
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
value = *maskp++;
value = ((CLAMP (value, min, max) - min) << 8) / border;
out[j] = ((in1[j] * value) + (in2[j] * (256 - value))) >> 8;
if (!(i & 1) && !(j & 1)) {
outu[j / 2] =
((in1u[j / 2] * value) + (in2u[j / 2] * (256 - value))) >> 8;
outv[j / 2] =
((in1v[j / 2] * value) + (in2v[j / 2] * (256 - value))) >> 8;
}
}
in1 += GST_VIDEO_FRAME_COMP_STRIDE (frame1, 0);
in2 += GST_VIDEO_FRAME_COMP_STRIDE (frame2, 0);
out += GST_VIDEO_FRAME_COMP_STRIDE (oframe, 0);
if (!(i & 1)) {
in1u += GST_VIDEO_FRAME_COMP_STRIDE (frame1, 1);
in2u += GST_VIDEO_FRAME_COMP_STRIDE (frame2, 1);
in1v += GST_VIDEO_FRAME_COMP_STRIDE (frame1, 2);
in2v += GST_VIDEO_FRAME_COMP_STRIDE (frame1, 2);
outu += GST_VIDEO_FRAME_COMP_STRIDE (oframe, 1);
outv += GST_VIDEO_FRAME_COMP_STRIDE (oframe, 2);
}
}
static void
fill_frame_packed8_3 (GstVideoFrame * frame, opj_image_t * image)
{
gint x, y, w, h;
guint8 *data_out, *tmp;
const gint *data_in[3];
gint dstride;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data_in[0] = image->comps[0].data;
data_in[1] = image->comps[1].data;
data_in[2] = image->comps[2].data;
for (y = 0; y < h; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
tmp[1] = *data_in[0];
tmp[2] = *data_in[1];
tmp[3] = *data_in[2];
tmp += 4;
data_in[0]++;
data_in[1]++;
data_in[2]++;
}
data_out += dstride;
}
}
static void
fill_frame_planar16_1 (GstVideoFrame * frame, opj_image_t * image)
{
gint x, y, w, h;
guint16 *data_out, *tmp;
const gint *data_in;
gint dstride;
gint shift;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
data_in = image->comps[0].data;
shift = 16 - image->comps[0].prec;
for (y = 0; y < h; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
*tmp = *data_in << shift;
tmp++;
data_in++;
}
data_out += dstride;
}
}
static void
gst_video_crop_transform_packed_simple (GstVideoCrop * vcrop,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
guint8 *in_data, *out_data;
gint width, height;
guint i, dx;
gint in_stride, out_stride;
width = GST_VIDEO_FRAME_WIDTH (out_frame);
height = GST_VIDEO_FRAME_HEIGHT (out_frame);
in_data = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
out_data = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
in_stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
out_stride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
in_data += vcrop->crop_top * in_stride;
in_data += vcrop->crop_left * GST_VIDEO_FRAME_COMP_PSTRIDE (in_frame, 0);
dx = width * GST_VIDEO_FRAME_COMP_PSTRIDE (out_frame, 0);
for (i = 0; i < height; ++i) {
memcpy (out_data, in_data, dx);
in_data += in_stride;
out_data += out_stride;
}
}
static void
theora_enc_init_buffer (th_ycbcr_buffer buf, GstVideoFrame * frame)
{
GstVideoInfo vinfo;
guint i;
/* According to Theora developer Timothy Terriberry, the Theora
* encoder will not use memory outside of pic_width/height, even when
* the frame size is bigger. The values outside this region will be encoded
* to default values.
* Due to this, setting the frame's width/height as the buffer width/height
* is perfectly ok, even though it does not strictly look ok.
*/
gst_video_info_init (&vinfo);
gst_video_info_set_format (&vinfo, GST_VIDEO_FRAME_FORMAT (frame),
GST_ROUND_UP_16 (GST_VIDEO_FRAME_WIDTH (frame)),
GST_ROUND_UP_16 (GST_VIDEO_FRAME_HEIGHT (frame)));
for (i = 0; i < 3; i++) {
buf[i].width = GST_VIDEO_INFO_COMP_WIDTH (&vinfo, i);
buf[i].height = GST_VIDEO_INFO_COMP_HEIGHT (&vinfo, i);
buf[i].data = GST_VIDEO_FRAME_COMP_DATA (frame, i);
buf[i].stride = GST_VIDEO_FRAME_COMP_STRIDE (frame, i);
}
}
static void
gst_video_balance_packed_rgb (GstVideoBalance * videobalance,
GstVideoFrame * frame)
{
gint i, j, height;
gint width, stride, row_wrap;
gint pixel_stride;
guint8 *data;
gint offsets[3];
gint r, g, b;
gint y, u, v;
gint u_tmp, v_tmp;
guint8 *tabley = videobalance->tabley;
guint8 **tableu = videobalance->tableu;
guint8 **tablev = videobalance->tablev;
width = GST_VIDEO_FRAME_WIDTH (frame);
height = GST_VIDEO_FRAME_HEIGHT (frame);
offsets[0] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 0);
offsets[1] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 1);
offsets[2] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 2);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
row_wrap = stride - pixel_stride * width;
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
r = data[offsets[0]];
g = data[offsets[1]];
b = data[offsets[2]];
y = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 0, r, g, b);
u_tmp = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 1, r, g, b);
v_tmp = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 2, r, g, b);
y = CLAMP (y, 0, 255);
u_tmp = CLAMP (u_tmp, 0, 255);
v_tmp = CLAMP (v_tmp, 0, 255);
y = tabley[y];
u = tableu[u_tmp][v_tmp];
v = tablev[u_tmp][v_tmp];
r = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 0, y, u, v);
g = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 1, y, u, v);
b = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 2, y, u, v);
data[offsets[0]] = CLAMP (r, 0, 255);
data[offsets[1]] = CLAMP (g, 0, 255);
data[offsets[2]] = CLAMP (b, 0, 255);
data += pixel_stride;
}
data += row_wrap;
}
}
static void
gst_video_balance_packed_yuv (GstVideoBalance * videobalance,
GstVideoFrame * frame)
{
gint x, y, stride;
guint8 *ydata, *udata, *vdata;
gint yoff, uoff, voff;
gint width, height;
gint width2, height2;
guint8 *tabley = videobalance->tabley;
guint8 **tableu = videobalance->tableu;
guint8 **tablev = videobalance->tablev;
width = GST_VIDEO_FRAME_WIDTH (frame);
height = GST_VIDEO_FRAME_HEIGHT (frame);
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
ydata = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
yoff = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
for (y = 0; y < height; y++) {
guint8 *yptr;
yptr = ydata + y * stride;
for (x = 0; x < width; x++) {
*yptr = tabley[*yptr];
yptr += yoff;
}
}
width2 = GST_VIDEO_FRAME_COMP_WIDTH (frame, 1);
height2 = GST_VIDEO_FRAME_COMP_HEIGHT (frame, 1);
udata = GST_VIDEO_FRAME_COMP_DATA (frame, 1);
vdata = GST_VIDEO_FRAME_COMP_DATA (frame, 2);
uoff = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 1);
voff = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 2);
for (y = 0; y < height2; y++) {
guint8 *uptr, *vptr;
guint8 u1, v1;
uptr = udata + y * stride;
vptr = vdata + y * stride;
for (x = 0; x < width2; x++) {
u1 = *uptr;
v1 = *vptr;
*uptr = tableu[u1][v1];
*vptr = tablev[u1][v1];
uptr += uoff;
vptr += voff;
}
}
}
static void
gst_video_balance_semiplanar_yuv (GstVideoBalance * videobalance,
GstVideoFrame * frame)
{
gint x, y;
guint8 *ydata;
guint8 *uvdata;
gint ystride, uvstride;
gint width, height;
gint width2, height2;
guint8 *tabley = videobalance->tabley;
guint8 **tableu = videobalance->tableu;
guint8 **tablev = videobalance->tablev;
gint upos, vpos;
width = GST_VIDEO_FRAME_WIDTH (frame);
height = GST_VIDEO_FRAME_HEIGHT (frame);
ydata = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
ystride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
for (y = 0; y < height; y++) {
guint8 *yptr;
yptr = ydata + y * ystride;
for (x = 0; x < width; x++) {
*yptr = tabley[*yptr];
yptr++;
}
}
width2 = GST_VIDEO_FRAME_COMP_WIDTH (frame, 1);
height2 = GST_VIDEO_FRAME_COMP_HEIGHT (frame, 1);
uvdata = GST_VIDEO_FRAME_PLANE_DATA (frame, 1);
uvstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 1);
upos = GST_VIDEO_INFO_FORMAT (&frame->info) == GST_VIDEO_FORMAT_NV12 ? 0 : 1;
vpos = GST_VIDEO_INFO_FORMAT (&frame->info) == GST_VIDEO_FORMAT_NV12 ? 1 : 0;
for (y = 0; y < height2; y++) {
guint8 *uvptr;
guint8 u1, v1;
uvptr = uvdata + y * uvstride;
for (x = 0; x < width2; x++) {
u1 = uvptr[upos];
v1 = uvptr[vpos];
uvptr[upos] = tableu[u1][v1];
uvptr[vpos] = tablev[u1][v1];
uvptr += 2;
}
}
}
static opj_image_t *
gst_openjpeg_enc_fill_image (GstOpenJPEGEnc * self, GstVideoFrame * frame)
{
gint i, ncomps;
opj_image_cmptparm_t *comps;
OPJ_COLOR_SPACE colorspace;
opj_image_t *image;
ncomps = GST_VIDEO_FRAME_N_COMPONENTS (frame);
comps = g_new0 (opj_image_cmptparm_t, ncomps);
for (i = 0; i < ncomps; i++) {
comps[i].prec = GST_VIDEO_FRAME_COMP_DEPTH (frame, i);
comps[i].bpp = GST_VIDEO_FRAME_COMP_DEPTH (frame, i);
comps[i].sgnd = 0;
comps[i].w = GST_VIDEO_FRAME_COMP_WIDTH (frame, i);
comps[i].h = GST_VIDEO_FRAME_COMP_HEIGHT (frame, i);
comps[i].dx =
GST_VIDEO_FRAME_WIDTH (frame) / GST_VIDEO_FRAME_COMP_WIDTH (frame, i);
comps[i].dy =
GST_VIDEO_FRAME_HEIGHT (frame) / GST_VIDEO_FRAME_COMP_HEIGHT (frame, i);
}
if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_YUV))
colorspace = OPJ_CLRSPC_SYCC;
else if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_RGB))
colorspace = OPJ_CLRSPC_SRGB;
else if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_GRAY))
colorspace = OPJ_CLRSPC_GRAY;
else
g_return_val_if_reached (NULL);
image = opj_image_create (ncomps, comps, colorspace);
g_free (comps);
image->x0 = image->y0 = 0;
image->x1 = GST_VIDEO_FRAME_WIDTH (frame);
image->y1 = GST_VIDEO_FRAME_HEIGHT (frame);
self->fill_image (image, frame);
return image;
}
static void
gst_color_effects_transform_rgb (GstColorEffects * filter,
GstVideoFrame * frame)
{
gint i, j;
gint width, height;
gint pixel_stride, row_stride, row_wrap;
guint32 r, g, b;
guint32 luma;
gint offsets[3];
guint8 *data;
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
offsets[0] = GST_VIDEO_FRAME_COMP_POFFSET (frame, 0);
offsets[1] = GST_VIDEO_FRAME_COMP_POFFSET (frame, 1);
offsets[2] = GST_VIDEO_FRAME_COMP_POFFSET (frame, 2);
width = GST_VIDEO_FRAME_WIDTH (frame);
height = GST_VIDEO_FRAME_HEIGHT (frame);
row_stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
row_wrap = row_stride - pixel_stride * width;
/* transform */
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
r = data[offsets[0]];
g = data[offsets[1]];
b = data[offsets[2]];
if (filter->map_luma) {
/* BT. 709 coefficients in B8 fixed point */
/* 0.2126 R + 0.7152 G + 0.0722 B */
luma = ((r << 8) * 54) + ((g << 8) * 183) + ((b << 8) * 19);
luma >>= 16; /* get integer part */
luma *= 3; /* times 3 to retrieve the correct pixel from
* the lut */
/* map luma to lookup table */
/* src.luma |-> table[luma].rgb */
data[offsets[0]] = filter->table[luma];
data[offsets[1]] = filter->table[luma + 1];
data[offsets[2]] = filter->table[luma + 2];
} else {
/* map each color component to the correspondent lut color */
/* src.r |-> table[r].r */
/* src.g |-> table[g].g */
/* src.b |-> table[b].b */
data[offsets[0]] = filter->table[r * 3];
data[offsets[1]] = filter->table[g * 3 + 1];
data[offsets[2]] = filter->table[b * 3 + 2];
}
data += pixel_stride;
}
static void
gst_video_crop_transform_packed_complex (GstVideoCrop * vcrop,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
guint8 *in_data, *out_data;
guint i, dx;
gint width, height;
gint in_stride;
gint out_stride;
width = GST_VIDEO_FRAME_WIDTH (out_frame);
height = GST_VIDEO_FRAME_HEIGHT (out_frame);
in_data = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
out_data = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
in_stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
out_stride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
in_data += vcrop->crop_top * in_stride;
/* rounding down here so we end up at the start of a macro-pixel and not
* in the middle of one */
in_data += ROUND_DOWN_2 (vcrop->crop_left) *
GST_VIDEO_FRAME_COMP_PSTRIDE (in_frame, 0);
dx = width * GST_VIDEO_FRAME_COMP_PSTRIDE (out_frame, 0);
/* UYVY = 4:2:2 - [U0 Y0 V0 Y1] [U2 Y2 V2 Y3] [U4 Y4 V4 Y5]
* YUYV = 4:2:2 - [Y0 U0 Y1 V0] [Y2 U2 Y3 V2] [Y4 U4 Y5 V4] = YUY2 */
if ((vcrop->crop_left % 2) != 0) {
for (i = 0; i < height; ++i) {
gint j;
memcpy (out_data, in_data, dx);
/* move just the Y samples one pixel to the left, don't worry about
* chroma shift */
for (j = vcrop->macro_y_off; j < out_stride - 2; j += 2)
out_data[j] = in_data[j + 2];
in_data += in_stride;
out_data += out_stride;
}
} else {
for (i = 0; i < height; ++i) {
memcpy (out_data, in_data, dx);
in_data += in_stride;
out_data += out_stride;
}
}
}
static void
gst_jpeg_dec_decode_rgb (GstJpegDec * dec, GstVideoFrame * frame)
{
guchar *r_rows[16], *g_rows[16], *b_rows[16];
guchar **scanarray[3] = { r_rows, g_rows, b_rows };
gint i, j, k;
gint lines;
guint8 *base[3];
guint pstride, rstride;
gint width, height;
GST_DEBUG_OBJECT (dec, "indirect decoding of RGB");
width = GST_VIDEO_FRAME_WIDTH (frame);
height = GST_VIDEO_FRAME_HEIGHT (frame);
if (G_UNLIKELY (!gst_jpeg_dec_ensure_buffers (dec, GST_ROUND_UP_32 (width))))
return;
for (i = 0; i < 3; i++)
base[i] = GST_VIDEO_FRAME_COMP_DATA (frame, i);
pstride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
rstride = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
memcpy (r_rows, dec->idr_y, 16 * sizeof (gpointer));
memcpy (g_rows, dec->idr_u, 16 * sizeof (gpointer));
memcpy (b_rows, dec->idr_v, 16 * sizeof (gpointer));
i = 0;
while (i < height) {
lines = jpeg_read_raw_data (&dec->cinfo, scanarray, DCTSIZE);
if (G_LIKELY (lines > 0)) {
for (j = 0; (j < DCTSIZE) && (i < height); j++, i++) {
gint p;
p = 0;
for (k = 0; k < width; k++) {
base[0][p] = r_rows[j][k];
base[1][p] = g_rows[j][k];
base[2][p] = b_rows[j][k];
p += pstride;
}
base[0] += rstride;
base[1] += rstride;
base[2] += rstride;
}
} else {
GST_INFO_OBJECT (dec, "jpeg_read_raw_data() returned 0");
}
}
}
static GstFlowReturn
gst_cairo_overlay_transform_frame_ip (GstVideoFilter * vfilter,
GstVideoFrame * frame)
{
GstCairoOverlay *overlay = GST_CAIRO_OVERLAY (vfilter);
cairo_surface_t *surface;
cairo_t *cr;
cairo_format_t format;
switch (GST_VIDEO_FRAME_FORMAT (frame)) {
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_BGRA:
format = CAIRO_FORMAT_ARGB32;
break;
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_BGRx:
format = CAIRO_FORMAT_RGB24;
break;
case GST_VIDEO_FORMAT_RGB16:
format = CAIRO_FORMAT_RGB16_565;
break;
default:
{
GST_WARNING ("No matching cairo format for %s",
gst_video_format_to_string (GST_VIDEO_FRAME_FORMAT (frame)));
return GST_FLOW_ERROR;
}
}
surface =
cairo_image_surface_create_for_data (GST_VIDEO_FRAME_PLANE_DATA (frame,
0), format, GST_VIDEO_FRAME_WIDTH (frame),
GST_VIDEO_FRAME_HEIGHT (frame), GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0));
if (G_UNLIKELY (!surface))
return GST_FLOW_ERROR;
cr = cairo_create (surface);
if (G_UNLIKELY (!cr)) {
cairo_surface_destroy (surface);
return GST_FLOW_ERROR;
}
g_signal_emit (overlay, gst_cairo_overlay_signals[SIGNAL_DRAW], 0,
cr, GST_BUFFER_PTS (frame->buffer), GST_BUFFER_DURATION (frame->buffer),
NULL);
cairo_destroy (cr);
cairo_surface_destroy (surface);
return GST_FLOW_OK;
}
static void
gst_video_crop_transform_planar (GstVideoCrop * vcrop,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
gint width, height;
guint8 *y_out, *u_out, *v_out;
guint8 *y_in, *u_in, *v_in;
guint i, dx;
width = GST_VIDEO_FRAME_WIDTH (out_frame);
height = GST_VIDEO_FRAME_HEIGHT (out_frame);
/* Y plane */
y_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
y_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
y_in +=
(vcrop->crop_top * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame,
0)) + vcrop->crop_left;
dx = width;
for (i = 0; i < height; ++i) {
memcpy (y_out, y_in, dx);
y_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
y_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
}
/* U + V planes */
u_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1);
u_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1);
u_in += (vcrop->crop_top / 2) * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1);
u_in += vcrop->crop_left / 2;
v_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2);
v_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2);
v_in += (vcrop->crop_top / 2) * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2);
v_in += vcrop->crop_left / 2;
dx = GST_ROUND_UP_2 (width) / 2;
for (i = 0; i < GST_ROUND_UP_2 (height) / 2; ++i) {
memcpy (u_out, u_in, dx);
memcpy (v_out, v_in, dx);
u_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1);
u_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1);
v_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2);
v_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2);
}
}
static GstFlowReturn
gst_shagadelictv_transform_frame (GstVideoFilter * vfilter,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
GstShagadelicTV *filter = GST_SHAGADELICTV (vfilter);
guint32 *src, *dest;
gint x, y;
guint32 v;
guint8 r, g, b;
gint width, height;
src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
width = GST_VIDEO_FRAME_WIDTH (in_frame);
height = GST_VIDEO_FRAME_HEIGHT (in_frame);
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
v = *src++ | 0x1010100;
v = (v - 0x707060) & 0x1010100;
v -= v >> 8;
/* Try another Babe!
* v = *src++;
* *dest++ = v & ((r<<16)|(g<<8)|b);
*/
r = ((gint8) (filter->ripple[(filter->ry + y) * width * 2 + filter->rx +
x] + filter->phase * 2)) >> 7;
g = ((gint8) (filter->spiral[y * width + x] + filter->phase * 3)) >> 7;
b = ((gint8) (filter->ripple[(filter->by + y) * width * 2 + filter->bx +
x] - filter->phase)) >> 7;
*dest++ = v & ((r << 16) | (g << 8) | b);
}
}
filter->phase -= 8;
if ((filter->rx + filter->rvx) < 0 || (filter->rx + filter->rvx) >= width)
filter->rvx = -filter->rvx;
if ((filter->ry + filter->rvy) < 0 || (filter->ry + filter->rvy) >= height)
filter->rvy = -filter->rvy;
if ((filter->bx + filter->bvx) < 0 || (filter->bx + filter->bvx) >= width)
filter->bvx = -filter->bvx;
if ((filter->by + filter->bvy) < 0 || (filter->by + filter->bvy) >= height)
filter->bvy = -filter->bvy;
filter->rx += filter->rvx;
filter->ry += filter->rvy;
filter->bx += filter->bvx;
filter->by += filter->bvy;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_video_median_transform_frame (GstVideoFilter * filter,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
GstVideoMedian *median = GST_VIDEO_MEDIAN (filter);
if (median->filtersize == 5) {
median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
if (median->lum_only) {
gst_video_frame_copy_plane (out_frame, in_frame, 1);
gst_video_frame_copy_plane (out_frame, in_frame, 2);
} else {
median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
}
} else {
median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
if (median->lum_only) {
gst_video_frame_copy_plane (out_frame, in_frame, 1);
gst_video_frame_copy_plane (out_frame, in_frame, 2);
} else {
median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
}
}
return GST_FLOW_OK;
}
static void
fill_frame_planar16_4_generic (GstVideoFrame * frame, opj_image_t * image)
{
gint x, y, w, h;
guint16 *data_out, *tmp;
const gint *data_in[4];
gint dstride;
gint dx[4], dy[4], shift[4];
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data_out = (guint16 *) GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
data_in[0] = image->comps[0].data;
data_in[1] = image->comps[1].data;
data_in[2] = image->comps[2].data;
data_in[3] = image->comps[3].data;
dx[0] = image->comps[0].dx;
dx[1] = image->comps[1].dx;
dx[2] = image->comps[2].dx;
dx[3] = image->comps[3].dx;
dy[0] = image->comps[0].dy;
dy[1] = image->comps[1].dy;
dy[2] = image->comps[2].dy;
dy[3] = image->comps[3].dy;
shift[0] = 16 - image->comps[0].prec;
shift[1] = 16 - image->comps[1].prec;
shift[2] = 16 - image->comps[2].prec;
shift[3] = 16 - image->comps[3].prec;
for (y = 0; y < h; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
tmp[0] = data_in[3][((y / dy[3]) * w + x) / dx[3]] << shift[3];
tmp[1] = data_in[0][((y / dy[0]) * w + x) / dx[0]] << shift[0];
tmp[2] = data_in[1][((y / dy[1]) * w + x) / dx[1]] << shift[1];
tmp[3] = data_in[2][((y / dy[2]) * w + x) / dx[2]] << shift[2];
tmp += 4;
}
data_out += dstride;
}
}
static GstFlowReturn
gst_streaktv_transform_frame (GstVideoFilter * vfilter,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
GstStreakTV *filter = GST_STREAKTV (vfilter);
guint32 *src, *dest;
gint i, cf;
gint video_area, width, height;
guint32 **planetable = filter->planetable;
gint plane = filter->plane;
guint stride_mask, stride_shift, stride;
src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
width = GST_VIDEO_FRAME_WIDTH (in_frame);
height = GST_VIDEO_FRAME_HEIGHT (in_frame);
video_area = width * height;
GST_OBJECT_LOCK (filter);
if (filter->feedback) {
stride_mask = 0xfcfcfcfc;
stride = 8;
stride_shift = 2;
} else {
stride_mask = 0xf8f8f8f8;
stride = 4;
stride_shift = 3;
}
for (i = 0; i < video_area; i++) {
planetable[plane][i] = (src[i] & stride_mask) >> stride_shift;
}
cf = plane & (stride - 1);
if (filter->feedback) {
for (i = 0; i < video_area; i++) {
dest[i] = planetable[cf][i]
+ planetable[cf + stride][i]
+ planetable[cf + stride * 2][i]
+ planetable[cf + stride * 3][i];
planetable[plane][i] = (dest[i] & stride_mask) >> stride_shift;
}
} else {
for (i = 0; i < video_area; i++) {
static void
gst_smpte_alpha_process_ayuv_ayuv (GstSMPTEAlpha * smpte,
const GstVideoFrame * in_frame, GstVideoFrame * out_frame, GstMask * mask,
gint border, gint pos)
{
gint i, j;
const guint32 *maskp;
gint value;
gint min, max;
gint width, height;
guint8 *in, *out;
gint src_wrap, dest_wrap;
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;
width = GST_VIDEO_FRAME_WIDTH (out_frame);
height = GST_VIDEO_FRAME_HEIGHT (out_frame);
in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
src_wrap = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0) - (width << 2);
dest_wrap = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0) - (width << 2);
/* 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++ = (*in++ * ((CLAMP (value, min, max) - min) << 8) / border) >> 8;
*out++ = *in++;
*out++ = *in++;
*out++ = *in++;
}
in += src_wrap;
out += dest_wrap;
}
}
static void
fill_frame_planar8_3_generic (GstVideoFrame * frame, opj_image_t * image)
{
gint x, y, w, h;
guint8 *data_out, *tmp;
const gint *data_in[3];
gint dstride;
gint dx[3], dy[3];
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data_in[0] = image->comps[0].data;
data_in[1] = image->comps[1].data;
data_in[2] = image->comps[2].data;
dx[0] = image->comps[0].dx;
dx[1] = image->comps[1].dx;
dx[2] = image->comps[2].dx;
dy[0] = image->comps[0].dy;
dy[1] = image->comps[1].dy;
dy[2] = image->comps[2].dy;
for (y = 0; y < h; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
tmp[0] = 0xff;
tmp[1] = data_in[0][((y / dy[0]) * w + x) / dx[0]];
tmp[2] = data_in[1][((y / dy[1]) * w + x) / dx[1]];
tmp[3] = data_in[2][((y / dy[2]) * w + x) / dx[2]];
tmp += 4;
}
data_out += dstride;
}
}
/* Actual processing. */
static GstFlowReturn
gst_burn_transform_frame (GstVideoFilter * vfilter,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
GstBurn *filter = GST_BURN (vfilter);
gint video_size, adjustment, width, height;
guint32 *src, *dest;
GstClockTime timestamp;
gint64 stream_time;
src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
width = GST_VIDEO_FRAME_WIDTH (in_frame);
height = GST_VIDEO_FRAME_HEIGHT (in_frame);
video_size = width * height;
/* GstController: update the properties */
timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
stream_time =
gst_segment_to_stream_time (&GST_BASE_TRANSFORM (filter)->segment,
GST_FORMAT_TIME, timestamp);
GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (GST_OBJECT (filter), stream_time);
GST_OBJECT_LOCK (filter);
adjustment = filter->adjustment;
GST_OBJECT_UNLOCK (filter);
/*** Now the image processing work.... ***/
orc_gaudi_burn (dest, src, adjustment, video_size);
return GST_FLOW_OK;
}
static void
deinterlace_frame_di_greedyh_planar (GstDeinterlaceMethod * method,
const GstDeinterlaceField * history, guint history_count,
GstVideoFrame * outframe, int cur_field_idx)
{
GstDeinterlaceMethodGreedyH *self = GST_DEINTERLACE_METHOD_GREEDY_H (method);
GstDeinterlaceMethodGreedyHClass *klass =
GST_DEINTERLACE_METHOD_GREEDY_H_GET_CLASS (self);
gint InfoIsOdd;
gint RowStride;
gint FieldHeight;
gint Pitch;
const guint8 *L1; // ptr to Line1, of 3
const guint8 *L2; // ptr to Line2, the weave line
const guint8 *L3; // ptr to Line3
const guint8 *L2P; // ptr to prev Line2
guint8 *Dest;
gint i;
ScanlineFunction scanline;
if (cur_field_idx + 2 > history_count || cur_field_idx < 1) {
GstDeinterlaceMethod *backup_method;
backup_method = g_object_new (gst_deinterlace_method_linear_get_type (),
NULL);
gst_deinterlace_method_setup (backup_method, method->vinfo);
gst_deinterlace_method_deinterlace_frame (backup_method,
history, history_count, outframe, cur_field_idx);
g_object_unref (backup_method);
return;
}
cur_field_idx += 2;
for (i = 0; i < 3; i++) {
InfoIsOdd = (history[cur_field_idx - 1].flags == PICTURE_INTERLACED_BOTTOM);
RowStride = GST_VIDEO_FRAME_PLANE_STRIDE (outframe, i);
FieldHeight = GST_VIDEO_FRAME_HEIGHT (outframe) / 2;
Pitch = RowStride * 2;
if (i == 0)
scanline = klass->scanline_planar_y;
else
scanline = klass->scanline_planar_uv;
Dest = GST_VIDEO_FRAME_PLANE_DATA (outframe, i);
L1 = GST_VIDEO_FRAME_PLANE_DATA (history[cur_field_idx - 2].frame, i);
if (history[cur_field_idx - 2].flags & PICTURE_INTERLACED_BOTTOM)
L1 += RowStride;
L2 = GST_VIDEO_FRAME_PLANE_DATA (history[cur_field_idx - 1].frame, i);
if (history[cur_field_idx - 1].flags & PICTURE_INTERLACED_BOTTOM)
L2 += RowStride;
L3 = L1 + Pitch;
L2P = GST_VIDEO_FRAME_PLANE_DATA (history[cur_field_idx - 3].frame, i);
if (history[cur_field_idx - 3].flags & PICTURE_INTERLACED_BOTTOM)
L2P += RowStride;
deinterlace_frame_di_greedyh_planar_plane (self, L1, L2, L3, L2P, Dest,
RowStride, FieldHeight, Pitch, InfoIsOdd, scanline);
}
}
static GstFlowReturn
gst_rsvg_decode_image (GstRsvgDec * rsvg, GstBuffer * buffer,
GstVideoCodecFrame * frame)
{
GstVideoDecoder *decoder = GST_VIDEO_DECODER (rsvg);
GstFlowReturn ret = GST_FLOW_OK;
cairo_t *cr;
cairo_surface_t *surface;
RsvgHandle *handle;
GError *error = NULL;
RsvgDimensionData dimension;
gdouble scalex, scaley;
GstMapInfo minfo;
GstVideoFrame vframe;
GstVideoCodecState *output_state;
GST_LOG_OBJECT (rsvg, "parsing svg");
if (!gst_buffer_map (buffer, &minfo, GST_MAP_READ)) {
GST_ERROR_OBJECT (rsvg, "Failed to get SVG image");
return GST_FLOW_ERROR;
}
handle = rsvg_handle_new_from_data (minfo.data, minfo.size, &error);
if (!handle) {
GST_ERROR_OBJECT (rsvg, "Failed to parse SVG image: %s", error->message);
g_error_free (error);
return GST_FLOW_ERROR;
}
rsvg_handle_get_dimensions (handle, &dimension);
output_state = gst_video_decoder_get_output_state (decoder);
if ((output_state == NULL)
|| GST_VIDEO_INFO_WIDTH (&output_state->info) != dimension.width
|| GST_VIDEO_INFO_HEIGHT (&output_state->info) != dimension.height) {
/* Create the output state */
if (output_state)
gst_video_codec_state_unref (output_state);
output_state =
gst_video_decoder_set_output_state (decoder, GST_RSVG_VIDEO_FORMAT,
dimension.width, dimension.height, rsvg->input_state);
}
ret = gst_video_decoder_allocate_output_frame (decoder, frame);
if (ret != GST_FLOW_OK) {
g_object_unref (handle);
gst_video_codec_state_unref (output_state);
GST_ERROR_OBJECT (rsvg, "Buffer allocation failed %s",
gst_flow_get_name (ret));
return ret;
}
GST_LOG_OBJECT (rsvg, "render image at %d x %d",
GST_VIDEO_INFO_HEIGHT (&output_state->info),
GST_VIDEO_INFO_WIDTH (&output_state->info));
if (!gst_video_frame_map (&vframe,
&output_state->info, frame->output_buffer, GST_MAP_READWRITE)) {
GST_ERROR_OBJECT (rsvg, "Failed to get SVG image");
g_object_unref (handle);
gst_video_codec_state_unref (output_state);
return GST_FLOW_ERROR;
}
surface =
cairo_image_surface_create_for_data (GST_VIDEO_FRAME_PLANE_DATA (&vframe,
0), CAIRO_FORMAT_ARGB32, GST_VIDEO_FRAME_WIDTH (&vframe),
GST_VIDEO_FRAME_HEIGHT (&vframe), GST_VIDEO_FRAME_PLANE_STRIDE (&vframe,
0));
cr = cairo_create (surface);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.0);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
scalex = scaley = 1.0;
if (GST_VIDEO_INFO_WIDTH (&output_state->info) != dimension.width) {
scalex =
((gdouble) GST_VIDEO_INFO_WIDTH (&output_state->info)) /
((gdouble) dimension.width);
}
if (GST_VIDEO_INFO_HEIGHT (&output_state->info) != dimension.height) {
scaley =
((gdouble) GST_VIDEO_INFO_HEIGHT (&output_state->info)) /
((gdouble) dimension.height);
}
cairo_scale (cr, scalex, scaley);
rsvg_handle_render_cairo (handle, cr);
g_object_unref (handle);
cairo_destroy (cr);
cairo_surface_destroy (surface);
/* Now unpremultiply Cairo's ARGB to match GStreamer's */
gst_rsvg_decode_unpremultiply (GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0),
GST_VIDEO_FRAME_WIDTH (&vframe), GST_VIDEO_FRAME_HEIGHT (&vframe));
gst_video_codec_state_unref (output_state);
gst_buffer_unmap (buffer, &minfo);
gst_video_frame_unmap (&vframe);
return ret;
}
static void
gst_validate_ssim_save_out (GstValidateSsim * self, GstBuffer * buffer,
const gchar * ref_file, const gchar * file, const gchar * outfolder)
{
GstVideoFrame frame, converted;
if (!g_file_test (outfolder, G_FILE_TEST_IS_DIR)) {
if (g_mkdir_with_parents (outfolder, 0755) != 0) {
GST_VALIDATE_REPORT (self, GENERAL_INPUT_ERROR,
"Could not create output directory %s", outfolder);
return;
}
}
if (self->priv->outconverter_info.converter == NULL ||
self->priv->width != self->priv->outconverter_info.out_info.width ||
self->priv->height != self->priv->outconverter_info.out_info.height) {
if (self->priv->outconverter_info.converter)
gst_video_converter_free (self->priv->outconverter_info.converter);
gst_video_info_init (&self->priv->outconverter_info.in_info);
gst_video_info_set_format (&self->priv->outconverter_info.in_info,
GST_VIDEO_FORMAT_GRAY8, self->priv->width, self->priv->height);
gst_video_info_init (&self->priv->outconverter_info.out_info);
gst_video_info_set_format (&self->priv->outconverter_info.out_info,
GST_VIDEO_FORMAT_RGBx, self->priv->width, self->priv->height);
self->priv->outconverter_info.converter =
gst_video_converter_new (&self->priv->outconverter_info.in_info,
&self->priv->outconverter_info.out_info, NULL);
}
if (!gst_video_frame_map (&frame, &self->priv->outconverter_info.in_info,
buffer, GST_MAP_READ)) {
GST_VALIDATE_REPORT (self, GENERAL_INPUT_ERROR,
"Could not map output frame");
return;
}
if (gst_validate_ssim_convert (self, &self->priv->outconverter_info,
&frame, &converted)) {
cairo_status_t status;
cairo_surface_t *surface;
gchar *bn1 = g_path_get_basename (ref_file);
gchar *bn2 = g_path_get_basename (file);
gchar *fname = g_strdup_printf ("%s.VS.%s.result.png", bn1, bn2);
gchar *outfile = g_build_path (G_DIR_SEPARATOR_S, outfolder, fname, NULL);
surface =
cairo_image_surface_create_for_data (GST_VIDEO_FRAME_PLANE_DATA
(&converted, 0), CAIRO_FORMAT_RGB24, GST_VIDEO_FRAME_WIDTH (&converted),
GST_VIDEO_FRAME_HEIGHT (&converted),
GST_VIDEO_FRAME_PLANE_STRIDE (&converted, 0));
if ((status = cairo_surface_write_to_png (surface, outfile)) !=
CAIRO_STATUS_SUCCESS) {
GST_VALIDATE_REPORT (self, GENERAL_INPUT_ERROR,
"Could not save '%s', cairo status is '%s'", outfile,
cairo_status_to_string (status));
}
cairo_surface_destroy (surface);
gst_video_frame_unmap (&frame);
gst_video_frame_unmap (&converted);
g_free (bn1);
g_free (bn2);
g_free (fname);
g_free (outfile);
}
}
static GstFlowReturn
gst_zbar_transform_frame_ip (GstVideoFilter * vfilter, GstVideoFrame * frame)
{
GstZBar *zbar = GST_ZBAR (vfilter);
gpointer data;
gint stride, height;
zbar_image_t *image;
const zbar_symbol_t *symbol;
int n;
image = zbar_image_create ();
/* all formats we support start with an 8-bit Y plane. zbar doesn't need
* to know about the chroma plane(s) */
data = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
stride = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
height = GST_VIDEO_FRAME_HEIGHT (frame);
zbar_image_set_format (image, GST_MAKE_FOURCC ('Y', '8', '0', '0'));
zbar_image_set_size (image, stride, height);
zbar_image_set_data (image, (gpointer) data, stride * height, NULL);
/* scan the image for barcodes */
n = zbar_scan_image (zbar->scanner, image);
if (n == 0)
goto out;
/* extract results */
symbol = zbar_image_first_symbol (image);
for (; symbol; symbol = zbar_symbol_next (symbol)) {
zbar_symbol_type_t typ = zbar_symbol_get_type (symbol);
const char *data = zbar_symbol_get_data (symbol);
gint quality = zbar_symbol_get_quality (symbol);
GST_DEBUG_OBJECT (zbar, "decoded %s symbol \"%s\" at quality %d",
zbar_get_symbol_name (typ), data, quality);
if (zbar->cache && zbar_symbol_get_count (symbol) != 0)
continue;
if (zbar->message) {
GstMessage *m;
GstStructure *s;
/* post a message */
s = gst_structure_new ("barcode",
"timestamp", G_TYPE_UINT64, GST_BUFFER_TIMESTAMP (frame->buffer),
"type", G_TYPE_STRING, zbar_get_symbol_name (typ),
"symbol", G_TYPE_STRING, data, "quality", G_TYPE_INT, quality, NULL);
m = gst_message_new_element (GST_OBJECT (zbar), s);
gst_element_post_message (GST_ELEMENT (zbar), m);
}
}
out:
/* clean up */
zbar_image_scanner_recycle_image (zbar->scanner, image);
zbar_image_destroy (image);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_jpeg_dec_decode_direct (GstJpegDec * dec, GstVideoFrame * frame)
{
guchar **line[3]; /* the jpeg line buffer */
guchar *y[4 * DCTSIZE] = { NULL, }; /* alloc enough for the lines */
guchar *u[4 * DCTSIZE] = { NULL, }; /* r_v will be <4 */
guchar *v[4 * DCTSIZE] = { NULL, };
gint i, j;
gint lines, v_samp[3];
guchar *base[3], *last[3];
gint stride[3];
guint height;
line[0] = y;
line[1] = u;
line[2] = v;
v_samp[0] = dec->cinfo.comp_info[0].v_samp_factor;
v_samp[1] = dec->cinfo.comp_info[1].v_samp_factor;
v_samp[2] = dec->cinfo.comp_info[2].v_samp_factor;
if (G_UNLIKELY (v_samp[0] > 2 || v_samp[1] > 2 || v_samp[2] > 2))
goto format_not_supported;
height = GST_VIDEO_FRAME_HEIGHT (frame);
for (i = 0; i < 3; i++) {
base[i] = GST_VIDEO_FRAME_COMP_DATA (frame, i);
stride[i] = GST_VIDEO_FRAME_COMP_STRIDE (frame, i);
/* make sure we don't make jpeglib write beyond our buffer,
* which might happen if (height % (r_v*DCTSIZE)) != 0 */
last[i] = base[i] + (GST_VIDEO_FRAME_COMP_STRIDE (frame, i) *
(GST_VIDEO_FRAME_COMP_HEIGHT (frame, i) - 1));
}
/* let jpeglib decode directly into our final buffer */
GST_DEBUG_OBJECT (dec, "decoding directly into output buffer");
for (i = 0; i < height; i += v_samp[0] * DCTSIZE) {
for (j = 0; j < (v_samp[0] * DCTSIZE); ++j) {
/* Y */
line[0][j] = base[0] + (i + j) * stride[0];
if (G_UNLIKELY (line[0][j] > last[0]))
line[0][j] = last[0];
/* U */
if (v_samp[1] == v_samp[0]) {
line[1][j] = base[1] + ((i + j) / 2) * stride[1];
} else if (j < (v_samp[1] * DCTSIZE)) {
line[1][j] = base[1] + ((i / 2) + j) * stride[1];
}
if (G_UNLIKELY (line[1][j] > last[1]))
line[1][j] = last[1];
/* V */
if (v_samp[2] == v_samp[0]) {
line[2][j] = base[2] + ((i + j) / 2) * stride[2];
} else if (j < (v_samp[2] * DCTSIZE)) {
line[2][j] = base[2] + ((i / 2) + j) * stride[2];
}
if (G_UNLIKELY (line[2][j] > last[2]))
line[2][j] = last[2];
}
lines = jpeg_read_raw_data (&dec->cinfo, line, v_samp[0] * DCTSIZE);
if (G_UNLIKELY (!lines)) {
GST_INFO_OBJECT (dec, "jpeg_read_raw_data() returned 0");
}
}
return GST_FLOW_OK;
format_not_supported:
{
gst_jpeg_dec_set_error (dec, GST_FUNCTION, __LINE__,
"Unsupported subsampling schema: v_samp factors: %u %u %u",
v_samp[0], v_samp[1], v_samp[2]);
return GST_FLOW_ERROR;
}
}
static void
gst_jpeg_dec_decode_indirect (GstJpegDec * dec, GstVideoFrame * frame, gint r_v,
gint r_h, gint comp)
{
guchar *y_rows[16], *u_rows[16], *v_rows[16];
guchar **scanarray[3] = { y_rows, u_rows, v_rows };
gint i, j, k;
gint lines;
guchar *base[3], *last[3];
gint stride[3];
gint width, height;
GST_DEBUG_OBJECT (dec,
"unadvantageous width or r_h, taking slow route involving memcpy");
width = GST_VIDEO_FRAME_WIDTH (frame);
height = GST_VIDEO_FRAME_HEIGHT (frame);
if (G_UNLIKELY (!gst_jpeg_dec_ensure_buffers (dec, GST_ROUND_UP_32 (width))))
return;
for (i = 0; i < 3; i++) {
base[i] = GST_VIDEO_FRAME_COMP_DATA (frame, i);
stride[i] = GST_VIDEO_FRAME_COMP_STRIDE (frame, i);
/* make sure we don't make jpeglib write beyond our buffer,
* which might happen if (height % (r_v*DCTSIZE)) != 0 */
last[i] = base[i] + (GST_VIDEO_FRAME_COMP_STRIDE (frame, i) *
(GST_VIDEO_FRAME_COMP_HEIGHT (frame, i) - 1));
}
memcpy (y_rows, dec->idr_y, 16 * sizeof (gpointer));
memcpy (u_rows, dec->idr_u, 16 * sizeof (gpointer));
memcpy (v_rows, dec->idr_v, 16 * sizeof (gpointer));
/* fill chroma components for grayscale */
if (comp == 1) {
GST_DEBUG_OBJECT (dec, "grayscale, filling chroma");
for (i = 0; i < 16; i++) {
memset (u_rows[i], GST_ROUND_UP_32 (width), 0x80);
memset (v_rows[i], GST_ROUND_UP_32 (width), 0x80);
}
}
for (i = 0; i < height; i += r_v * DCTSIZE) {
lines = jpeg_read_raw_data (&dec->cinfo, scanarray, r_v * DCTSIZE);
if (G_LIKELY (lines > 0)) {
for (j = 0, k = 0; j < (r_v * DCTSIZE); j += r_v, k++) {
if (G_LIKELY (base[0] <= last[0])) {
memcpy (base[0], y_rows[j], stride[0]);
base[0] += stride[0];
}
if (r_v == 2) {
if (G_LIKELY (base[0] <= last[0])) {
memcpy (base[0], y_rows[j + 1], stride[0]);
base[0] += stride[0];
}
}
if (G_LIKELY (base[1] <= last[1] && base[2] <= last[2])) {
if (r_h == 2) {
memcpy (base[1], u_rows[k], stride[1]);
memcpy (base[2], v_rows[k], stride[2]);
} else if (r_h == 1) {
hresamplecpy1 (base[1], u_rows[k], stride[1]);
hresamplecpy1 (base[2], v_rows[k], stride[2]);
} else {
/* FIXME: implement (at least we avoid crashing by doing nothing) */
}
}
if (r_v == 2 || (k & 1) != 0) {
base[1] += stride[1];
base[2] += stride[2];
}
}
} else {
GST_INFO_OBJECT (dec, "jpeg_read_raw_data() returned 0");
}
}
}
