static GstFlowReturn
gst_vdp_vpp_drain (GstVdpVideoPostProcess * vpp)
{
GstVdpPicture current_pic;
guint32 video_surfaces_past_count;
VdpVideoSurface video_surfaces_past[MAX_PICTURES];
guint32 video_surfaces_future_count;
VdpVideoSurface video_surfaces_future[MAX_PICTURES];
GstFlowReturn ret;
while (gst_vdp_vpp_get_next_picture (vpp,
¤t_pic,
&video_surfaces_past_count, video_surfaces_past,
&video_surfaces_future_count, video_surfaces_future)) {
GError *err;
GstVdpOutputBuffer *outbuf;
GstStructure *structure;
GstVideoRectangle src_r = { 0, }
, dest_r = {
0,};
VdpRect rect;
GstVdpDevice *device;
VdpStatus status;
err = NULL;
ret =
gst_vdp_output_src_pad_alloc_buffer ((GstVdpOutputSrcPad *) vpp->srcpad,
&outbuf, &err);
if (ret != GST_FLOW_OK)
goto output_pad_error;
src_r.w = vpp->width;
src_r.h = vpp->height;
if (vpp->got_par) {
gint new_width;
new_width = gst_util_uint64_scale_int (src_r.w, vpp->par_n, vpp->par_d);
src_r.x += (src_r.w - new_width) / 2;
src_r.w = new_width;
}
structure = gst_caps_get_structure (GST_BUFFER_CAPS (outbuf), 0);
if (!gst_structure_get_int (structure, "width", &dest_r.w) ||
!gst_structure_get_int (structure, "height", &dest_r.h))
goto invalid_caps;
if (vpp->force_aspect_ratio) {
GstVideoRectangle res_r;
gst_video_sink_center_rect (src_r, dest_r, &res_r, TRUE);
rect.x0 = res_r.x;
rect.x1 = res_r.w + res_r.x;
rect.y0 = res_r.y;
rect.y1 = res_r.h + res_r.y;
} else {
rect.x0 = 0;
rect.x1 = dest_r.w;
rect.y0 = 0;
rect.y1 = dest_r.h;
}
device = vpp->device;
status =
device->vdp_video_mixer_render (vpp->mixer, VDP_INVALID_HANDLE, NULL,
current_pic.structure, video_surfaces_past_count, video_surfaces_past,
current_pic.buf->surface, video_surfaces_future_count,
video_surfaces_future, NULL, outbuf->surface, NULL, &rect, 0, NULL);
if (status != VDP_STATUS_OK)
goto render_error;
GST_BUFFER_TIMESTAMP (outbuf) = current_pic.timestamp;
if (gst_vdp_vpp_is_interlaced (vpp))
GST_BUFFER_DURATION (outbuf) = vpp->field_duration;
else
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (current_pic.buf);
if (GST_BUFFER_FLAG_IS_SET (current_pic.buf, GST_BUFFER_FLAG_DISCONT))
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
if (GST_BUFFER_FLAG_IS_SET (current_pic.buf, GST_BUFFER_FLAG_PREROLL))
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_PREROLL);
if (GST_BUFFER_FLAG_IS_SET (current_pic.buf, GST_BUFFER_FLAG_GAP))
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
err = NULL;
ret =
gst_vdp_output_src_pad_push ((GstVdpOutputSrcPad *) vpp->srcpad,
outbuf, &err);
if (ret != GST_FLOW_OK)
goto output_pad_error;
continue;
invalid_caps:
gst_buffer_unref (GST_BUFFER (outbuf));
GST_ELEMENT_ERROR (vpp, STREAM, FAILED, ("Invalid output caps"), (NULL));
ret = GST_FLOW_ERROR;
break;
render_error:
gst_buffer_unref (GST_BUFFER (outbuf));
GST_ELEMENT_ERROR (vpp, RESOURCE, READ,
("Could not postprocess frame"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
ret = GST_FLOW_ERROR;
break;
output_pad_error:
if (ret == GST_FLOW_ERROR && err != NULL)
gst_vdp_vpp_post_error (vpp, err);
break;
}
return ret;
}
static GstFlowReturn
gst_vdp_vpp_chain (GstPad * pad, GstBuffer * buffer)
{
GstVdpVideoPostProcess *vpp =
GST_VDP_VIDEO_POST_PROCESS (gst_pad_get_parent (pad));
GstFlowReturn ret = GST_FLOW_OK;
GstVdpPicture current_pic;
guint32 video_surfaces_past_count;
VdpVideoSurface video_surfaces_past[MAX_PICTURES];
guint32 video_surfaces_future_count;
VdpVideoSurface video_surfaces_future[MAX_PICTURES];
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))) {
GST_DEBUG_OBJECT (vpp, "Received discont buffer");
gst_vdp_vpp_flush (vpp);
}
gst_vdp_vpp_add_buffer (vpp, GST_VDP_VIDEO_BUFFER (buffer));
while (gst_vdp_vpp_get_next_picture (vpp,
¤t_pic,
&video_surfaces_past_count, video_surfaces_past,
&video_surfaces_future_count, video_surfaces_future)) {
GstVdpOutputBuffer *outbuf;
GstStructure *structure;
GstVideoRectangle src_r = { 0, }
, dest_r = {
0,};
gint par_n, par_d;
VdpRect rect;
GstVdpDevice *device;
VdpStatus status;
ret =
gst_vdp_vpp_alloc_output_buffer (vpp, GST_PAD_CAPS (vpp->srcpad),
&outbuf);
if (ret != GST_FLOW_OK)
break;
structure = gst_caps_get_structure (GST_BUFFER_CAPS (buffer), 0);
if (!gst_structure_get_int (structure, "width", &src_r.w) ||
!gst_structure_get_int (structure, "height", &src_r.h))
goto invalid_caps;
if (gst_structure_get_fraction (structure, "pixel-aspect-ratio", &par_n,
&par_d)) {
gint new_width;
new_width = gst_util_uint64_scale_int (src_r.w, par_n, par_d);
src_r.x += (src_r.w - new_width) / 2;
src_r.w = new_width;
}
structure = gst_caps_get_structure (GST_BUFFER_CAPS (outbuf), 0);
if (!gst_structure_get_int (structure, "width", &dest_r.w) ||
!gst_structure_get_int (structure, "height", &dest_r.h))
goto invalid_caps;
if (vpp->force_aspect_ratio) {
GstVideoRectangle res_r;
gst_video_sink_center_rect (src_r, dest_r, &res_r, TRUE);
rect.x0 = res_r.x;
rect.x1 = res_r.w + res_r.x;
rect.y0 = res_r.y;
rect.y1 = res_r.h + res_r.y;
} else {
rect.x0 = 0;
rect.x1 = dest_r.w;
rect.y0 = 0;
rect.y1 = dest_r.h;
}
device = vpp->device;
status =
device->vdp_video_mixer_render (vpp->mixer, VDP_INVALID_HANDLE, NULL,
current_pic.structure, video_surfaces_past_count, video_surfaces_past,
current_pic.buf->surface, video_surfaces_future_count,
video_surfaces_future, NULL, outbuf->surface, NULL, &rect, 0, NULL);
if (status != VDP_STATUS_OK) {
GST_ELEMENT_ERROR (vpp, RESOURCE, READ,
("Could not post process frame"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
ret = GST_FLOW_ERROR;
goto done;
}
GST_BUFFER_TIMESTAMP (outbuf) = current_pic.timestamp;
if (gst_vdp_vpp_is_interlaced (vpp))
GST_BUFFER_DURATION (outbuf) = vpp->field_duration;
else
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (current_pic.buf);
if (GST_BUFFER_FLAG_IS_SET (current_pic.buf, GST_BUFFER_FLAG_DISCONT))
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
if (GST_BUFFER_FLAG_IS_SET (current_pic.buf, GST_BUFFER_FLAG_PREROLL))
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_PREROLL);
if (GST_BUFFER_FLAG_IS_SET (current_pic.buf, GST_BUFFER_FLAG_GAP))
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
ret = gst_pad_push (vpp->srcpad, GST_BUFFER (outbuf));
if (ret != GST_FLOW_OK)
break;
continue;
invalid_caps:
gst_buffer_unref (GST_BUFFER (outbuf));
ret = GST_FLOW_ERROR;
break;
}
done:
gst_object_unref (vpp);
return ret;
}
