gstreamer/sys/vdpau/gstvdpyuvvideo.c
Carl-Anton Ingmarsson 3e05ddca61 vdpau: add new vdpausink and vdpauvideopostprocess elements
vdpausink is as the name implies a sink which takes vide/x-vdpau-output buffers
and outputs it to the screen.

vdpauvideopostprocess is an element which takes video/x-vdpau-video buffers and
outputs video/x-vdpau-output buffers. The element can also do things like
deinterlacing and other postprocessing but this is not implemented yet.
2009-09-16 10:25:42 +01:00

339 lines
10 KiB
C

/*
* GStreamer
* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstvdpvideobuffer.h"
#include "gstvdputils.h"
#include "gstvdpyuvvideo.h"
GST_DEBUG_CATEGORY_STATIC (gst_vdp_yuv_video_debug);
#define GST_CAT_DEFAULT gst_vdp_yuv_video_debug
/* Filter signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0
};
static GstStaticPadTemplate sink_template =
GST_STATIC_PAD_TEMPLATE (GST_BASE_TRANSFORM_SINK_NAME,
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420") ";"
GST_VIDEO_CAPS_YUV ("YV12") ";" GST_VIDEO_CAPS_YUV ("NV12") ";"
GST_VIDEO_CAPS_YUV ("UYVY") ";" GST_VIDEO_CAPS_YUV ("YUY2")));
static GstStaticPadTemplate src_template =
GST_STATIC_PAD_TEMPLATE (GST_BASE_TRANSFORM_SRC_NAME,
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VDP_VIDEO_CAPS));
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_vdp_yuv_video_debug, "vdpauyuvvideo", 0, "YUV to VDPAU video surface");
GST_BOILERPLATE_FULL (GstVdpYUVVideo, gst_vdp_yuv_video, GstBaseTransform,
GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
static gboolean
gst_vdp_yuv_video_transform_size (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, guint size,
GstCaps * othercaps, guint * othersize)
{
*othersize = size;
return TRUE;
}
static GstFlowReturn
gst_vdp_yuv_video_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstVdpYUVVideo *yuv_video = GST_VDP_YUV_VIDEO (trans);
GstVdpDevice *device;
VdpVideoSurface surface;
device = GST_VDP_VIDEO_BUFFER (outbuf)->device;
if (!yuv_video->device)
yuv_video->device = g_object_ref (device);
surface = GST_VDP_VIDEO_BUFFER (outbuf)->surface;
switch (yuv_video->format) {
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
{
VdpStatus status;
guint8 *data[3];
guint32 stride[3];
data[0] = GST_BUFFER_DATA (inbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
0, yuv_video->width, yuv_video->height);
data[1] = GST_BUFFER_DATA (inbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
2, yuv_video->width, yuv_video->height);
data[2] = GST_BUFFER_DATA (inbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
1, yuv_video->width, yuv_video->height);
stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
0, yuv_video->width);
stride[1] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
2, yuv_video->width);
stride[2] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
1, yuv_video->width);
status =
device->vdp_video_surface_put_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_YV12, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (yuv_video, RESOURCE, READ,
("Couldn't push YV12 data to VDPAU"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
}
break;
}
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
{
VdpStatus status;
guint8 *data[3];
guint32 stride[3];
data[0] = GST_BUFFER_DATA (inbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
0, yuv_video->width, yuv_video->height);
data[1] = GST_BUFFER_DATA (inbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
2, yuv_video->width, yuv_video->height);
data[2] = GST_BUFFER_DATA (inbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
1, yuv_video->width, yuv_video->height);
stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
0, yuv_video->width);
stride[1] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
2, yuv_video->width);
stride[2] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
1, yuv_video->width);
status =
device->vdp_video_surface_put_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_YV12, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (yuv_video, RESOURCE, READ,
("Couldn't push YV12 data to VDPAU"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
}
break;
}
case GST_MAKE_FOURCC ('N', 'V', '1', '2'):
{
VdpStatus status;
guint8 *data[2];
guint32 stride[2];
data[0] = GST_BUFFER_DATA (inbuf);
data[1] = GST_BUFFER_DATA (inbuf) + yuv_video->width * yuv_video->height;
stride[0] = yuv_video->width;
stride[1] = yuv_video->width;
status =
device->vdp_video_surface_put_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_NV12, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (yuv_video, RESOURCE, READ,
("Couldn't get data from vdpau"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
}
break;
}
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
{
VdpStatus status;
guint8 *data[1];
guint32 stride[1];
data[0] = GST_BUFFER_DATA (inbuf);
stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_UYVY,
0, yuv_video->width);
status =
device->vdp_video_surface_put_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_UYVY, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (yuv_video, RESOURCE, READ,
("Couldn't get data from vdpau"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
}
break;
}
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
{
VdpStatus status;
guint8 *data[1];
guint32 stride[1];
data[0] = GST_BUFFER_DATA (inbuf);
stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YUY2,
0, yuv_video->width);
status =
device->vdp_video_surface_put_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_YUYV, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (yuv_video, RESOURCE, READ,
("Couldn't get data from vdpau"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
}
break;
}
default:
break;
}
gst_buffer_copy_metadata (outbuf, inbuf,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);
return GST_FLOW_OK;
}
static gboolean
gst_vdp_yuv_video_set_caps (GstBaseTransform * trans, GstCaps * incaps,
GstCaps * outcaps)
{
GstVdpYUVVideo *yuv_video = GST_VDP_YUV_VIDEO (trans);
GstStructure *structure;
structure = gst_caps_get_structure (incaps, 0);
if (!gst_structure_get_int (structure, "width", &yuv_video->width))
return FALSE;
if (!gst_structure_get_int (structure, "height", &yuv_video->height))
return FALSE;
if (!gst_structure_get_fourcc (structure, "format", &yuv_video->format))
return FALSE;
return TRUE;
}
static GstCaps *
gst_vdp_yuv_video_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
{
GstVdpYUVVideo *yuv_video = GST_VDP_YUV_VIDEO (trans);
GstCaps *result = NULL;
if (direction == GST_PAD_SINK) {
result = gst_vdp_yuv_to_video_caps (caps, yuv_video->device);
} else if (direction == GST_PAD_SRC) {
result = gst_vdp_video_to_yuv_caps (caps, yuv_video->device);
}
GST_LOG ("transformed %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT, caps, result);
return result;
}
static gboolean
gst_vdp_yuv_video_start (GstBaseTransform * trans)
{
GstVdpYUVVideo *yuv_video = GST_VDP_YUV_VIDEO (trans);
yuv_video->device = NULL;
return TRUE;
}
static gboolean
gst_vdp_yuv_video_stop (GstBaseTransform * trans)
{
GstVdpYUVVideo *yuv_video = GST_VDP_YUV_VIDEO (trans);
if (yuv_video->device)
g_object_unref (yuv_video->device);
return TRUE;
}
/* GObject vmethod implementations */
static void
gst_vdp_yuv_video_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_set_details_simple (element_class,
"VdpauYUVVideo",
"Filter/Converter/Decoder/Video",
"VDPAU video surface to YUV",
"Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
}
static void
gst_vdp_yuv_video_class_init (GstVdpYUVVideoClass * klass)
{
GObjectClass *gobject_class;
GstBaseTransformClass *trans_class;
gobject_class = (GObjectClass *) klass;
trans_class = (GstBaseTransformClass *) klass;
trans_class->start = gst_vdp_yuv_video_start;
trans_class->stop = gst_vdp_yuv_video_stop;
trans_class->transform_caps = gst_vdp_yuv_video_transform_caps;
trans_class->transform_size = gst_vdp_yuv_video_transform_size;
trans_class->set_caps = gst_vdp_yuv_video_set_caps;
trans_class->transform = gst_vdp_yuv_video_transform;
}
static void
gst_vdp_yuv_video_init (GstVdpYUVVideo * yuv_video, GstVdpYUVVideoClass * klass)
{
}