static CogFrame *
cog_frame_realize (CogFrame * frame)
{
CogFrame *dest;
dest = cog_frame_clone (NULL, frame);
cog_virt_frame_render (frame, dest);
cog_frame_unref (frame);
return dest;
}
static GstFlowReturn
gst_colorconvert_transform_ip (GstBaseTransform * base_transform,
GstBuffer * buf)
{
GstColorconvert *li;
CogFrame *frame;
CogFrame *vf;
g_return_val_if_fail (GST_IS_COLORCONVERT (base_transform), GST_FLOW_ERROR);
li = GST_COLORCONVERT (base_transform);
frame = gst_cog_buffer_wrap (gst_buffer_ref (buf),
li->format, li->width, li->height);
vf = cog_virt_frame_new_unpack (cog_frame_ref (frame));
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_444,
COG_CHROMA_SITE_MPEG2, 2);
vf = cog_virt_frame_new_color_transform (vf);
if (frame->format == COG_FRAME_FORMAT_YUYV) {
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_422,
COG_CHROMA_SITE_MPEG2, 2);
vf = cog_virt_frame_new_pack_YUY2 (vf);
} else if (frame->format == COG_FRAME_FORMAT_UYVY) {
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_422,
COG_CHROMA_SITE_MPEG2, 2);
vf = cog_virt_frame_new_pack_UYVY (vf);
} else if (frame->format == COG_FRAME_FORMAT_AYUV) {
vf = cog_virt_frame_new_pack_AYUV (vf);
} else if (frame->format == COG_FRAME_FORMAT_U8_420) {
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_420,
COG_CHROMA_SITE_MPEG2, 2);
} else {
g_assert_not_reached ();
}
cog_virt_frame_render (vf, frame);
cog_frame_unref (frame);
cog_frame_unref (vf);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_cogdownsample_transform (GstBaseTransform * base_transform,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstCogdownsample *compress;
CogFrame *outframe;
int width, height;
uint32_t format;
CogFrame *frame;
g_return_val_if_fail (GST_IS_COGDOWNSAMPLE (base_transform), GST_FLOW_ERROR);
compress = GST_COGDOWNSAMPLE (base_transform);
gst_structure_get_fourcc (gst_caps_get_structure (inbuf->caps, 0),
"format", &format);
gst_structure_get_int (gst_caps_get_structure (inbuf->caps, 0),
"width", &width);
gst_structure_get_int (gst_caps_get_structure (inbuf->caps, 0),
"height", &height);
switch (format) {
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
frame = cog_frame_new_from_data_I420 (GST_BUFFER_DATA (inbuf),
width, height);
outframe = cog_frame_new_from_data_I420 (GST_BUFFER_DATA (outbuf),
width / 2, height / 2);
break;
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
frame = cog_frame_new_from_data_YV12 (GST_BUFFER_DATA (inbuf),
width, height);
outframe = cog_frame_new_from_data_YV12 (GST_BUFFER_DATA (outbuf),
width / 2, height / 2);
break;
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
frame = cog_frame_new_from_data_YUY2 (GST_BUFFER_DATA (inbuf),
width, height);
outframe = cog_frame_new_from_data_YUY2 (GST_BUFFER_DATA (outbuf),
width / 2, height / 2);
break;
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
frame = cog_frame_new_from_data_UYVY (GST_BUFFER_DATA (inbuf),
width, height);
outframe = cog_frame_new_from_data_UYVY (GST_BUFFER_DATA (outbuf),
width / 2, height / 2);
break;
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
frame = cog_frame_new_from_data_AYUV (GST_BUFFER_DATA (inbuf),
width, height);
outframe = cog_frame_new_from_data_AYUV (GST_BUFFER_DATA (outbuf),
width / 2, height / 2);
break;
default:
g_assert_not_reached ();
}
frame = cog_virt_frame_new_unpack (frame);
frame = cog_virt_frame_new_horiz_downsample (frame, 3);
frame = cog_virt_frame_new_vert_downsample (frame, 2);
switch (format) {
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
frame = cog_virt_frame_new_pack_YUY2 (frame);
break;
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
frame = cog_virt_frame_new_pack_UYVY (frame);
break;
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
frame = cog_virt_frame_new_pack_AYUV (frame);
break;
default:
break;
}
cog_virt_frame_render (frame, outframe);
cog_frame_unref (frame);
cog_frame_unref (outframe);
return GST_FLOW_OK;
}
