static GstVdpBuffer *
gst_vdp_video_buffer_pool_alloc_buffer (GstVdpBufferPool * bpool,
GError ** error)
{
GstVdpVideoBufferPool *vpool = GST_VDP_VIDEO_BUFFER_POOL (bpool);
GstVdpDevice *device;
device = gst_vdp_buffer_pool_get_device (bpool);
return GST_VDP_BUFFER_CAST (gst_vdp_video_buffer_new (device,
vpool->chroma_type, vpool->width, vpool->height, error));
}
static GstFlowReturn
gst_vdp_vpp_sink_bufferalloc (GstPad * pad, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
GstVdpVideoPostProcess *vpp =
GST_VDP_VIDEO_POST_PROCESS (gst_pad_get_parent (pad));
GstVdpOutputBuffer *outbuf;
GstFlowReturn ret = GST_FLOW_ERROR;
GstVdpDevice *device = NULL;
GstStructure *structure;
gint width, height;
gint chroma_type;
if (!vpp->device) {
/* if we haven't got a device yet we must alloc a buffer downstream to get it */
GstCaps *src_caps = gst_pad_get_allowed_caps (vpp->srcpad);
gst_pad_fixate_caps (vpp->srcpad, src_caps);
ret = gst_pad_alloc_buffer (vpp->srcpad, 0, 0, src_caps,
(GstBuffer **) & outbuf);
gst_caps_unref (src_caps);
if (ret != GST_FLOW_OK)
goto error;
device = outbuf->device;
gst_buffer_unref (GST_BUFFER (outbuf));
} else
device = vpp->device;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "height", &height) ||
!gst_structure_get_int (structure, "chroma-type", &chroma_type))
goto error;
*buf = GST_BUFFER (gst_vdp_video_buffer_new (device,
chroma_type, width, height));
if (*buf == NULL)
goto error;
GST_BUFFER_SIZE (*buf) = size;
GST_BUFFER_OFFSET (*buf) = offset;
gst_buffer_set_caps (*buf, caps);
ret = GST_FLOW_OK;
error:
gst_object_unref (vpp);
return ret;
}
static GstFlowReturn
gst_vdp_video_yuv_buffer_alloc (GstPad * pad, guint64 offset,
guint size, GstCaps * caps, GstBuffer ** buf)
{
GstVdpVideoYUV *video_yuv = GST_VDP_VIDEO_YUV (gst_pad_get_parent (pad));
GstFlowReturn ret = GST_FLOW_ERROR;
GstStructure *structure;
gint width, height;
gint chroma_type;
structure = gst_caps_get_structure (caps, 0);
if (!structure)
goto error;
if (!gst_structure_get_int (structure, "width", &width))
goto error;
if (!gst_structure_get_int (structure, "height", &height))
goto error;
if (!gst_structure_get_int (structure, "chroma-type", &chroma_type))
goto error;
*buf = GST_BUFFER (gst_vdp_video_buffer_new (video_yuv->device,
chroma_type, width, height));
if (*buf == NULL)
goto error;
GST_BUFFER_SIZE (*buf) = size;
GST_BUFFER_OFFSET (*buf) = offset;
gst_buffer_set_caps (*buf, caps);
ret = GST_FLOW_OK;
error:
gst_object_unref (video_yuv);
return ret;
}
