gstreamer/sys/vdpau/gstvdpvideoyuv.c

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/*
* 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 "gstvdpvideoyuv.h"
GST_DEBUG_CATEGORY_STATIC (gst_vdp_video_yuv_debug);
#define GST_CAT_DEFAULT gst_vdp_video_yuv_debug
/* Filter signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0
};
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VDP_VIDEO_CAPS));
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-yuv, "
"framerate = (fraction) [ 0, MAX ], "
"width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]"));
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_vdp_video_yuv_debug, "vdpauvideoyuv", 0, "VDPAU VdpSurface to YUV");
GST_BOILERPLATE_FULL (GstVdpVideoYUV, gst_vdp_video_yuv, GstElement,
GST_TYPE_ELEMENT, DEBUG_INIT);
static void gst_vdp_video_yuv_finalize (GObject * object);
static void gst_vdp_video_yuv_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_vdp_video_yuv_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
GstFlowReturn
gst_vdp_video_yuv_chain (GstPad * pad, GstBuffer * buffer)
{
GstVdpVideoYUV *video_yuv;
GstVdpDevice *device;
VdpVideoSurface surface;
GstBuffer *outbuf = NULL;
video_yuv = GST_VDP_VIDEO_YUV (GST_OBJECT_PARENT (pad));
device = GST_VDP_VIDEO_BUFFER (buffer)->device;
surface = GST_VDP_VIDEO_BUFFER (buffer)->surface;
switch (video_yuv->format) {
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
{
gint size;
GstFlowReturn result;
VdpStatus status;
guint8 *data[3];
guint32 stride[3];
size =
gst_video_format_get_size (GST_VIDEO_FORMAT_YV12, video_yuv->width,
video_yuv->height);
result =
gst_pad_alloc_buffer_and_set_caps (video_yuv->src,
GST_BUFFER_OFFSET_NONE, size, GST_PAD_CAPS (video_yuv->src), &outbuf);
if (G_UNLIKELY (result != GST_FLOW_OK))
return result;
data[0] = GST_BUFFER_DATA (outbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
0, video_yuv->width, video_yuv->height);
data[1] = GST_BUFFER_DATA (outbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
2, video_yuv->width, video_yuv->height);
data[2] = GST_BUFFER_DATA (outbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
1, video_yuv->width, video_yuv->height);
stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
0, video_yuv->width);
stride[1] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
2, video_yuv->width);
stride[2] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
1, video_yuv->width);
status =
device->vdp_video_surface_get_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_YV12, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (video_yuv, RESOURCE, READ,
("Couldn't get data from vdpau"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
goto error;
}
break;
}
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
{
gint size;
GstFlowReturn result;
VdpStatus status;
guint8 *data[3];
guint32 stride[3];
size =
gst_video_format_get_size (GST_VIDEO_FORMAT_YV12, video_yuv->width,
video_yuv->height);
result =
gst_pad_alloc_buffer_and_set_caps (video_yuv->src,
GST_BUFFER_OFFSET_NONE, size, GST_PAD_CAPS (video_yuv->src), &outbuf);
if (G_UNLIKELY (result != GST_FLOW_OK))
return result;
data[0] = GST_BUFFER_DATA (outbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
0, video_yuv->width, video_yuv->height);
data[1] = GST_BUFFER_DATA (outbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
2, video_yuv->width, video_yuv->height);
data[2] = GST_BUFFER_DATA (outbuf) +
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
1, video_yuv->width, video_yuv->height);
stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
0, video_yuv->width);
stride[1] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
2, video_yuv->width);
stride[2] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
1, video_yuv->width);
status =
device->vdp_video_surface_get_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_YV12, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (video_yuv, RESOURCE, READ,
("Couldn't get data from vdpau"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
goto error;
}
break;
}
case GST_MAKE_FOURCC ('N', 'V', '1', '2'):
{
gint size;
GstFlowReturn result;
VdpStatus status;
guint8 *data[2];
guint32 stride[2];
size =
video_yuv->width * video_yuv->height +
video_yuv->width * video_yuv->height / 2;
result =
gst_pad_alloc_buffer_and_set_caps (video_yuv->src,
GST_BUFFER_OFFSET_NONE, size, GST_PAD_CAPS (video_yuv->src), &outbuf);
if (G_UNLIKELY (result != GST_FLOW_OK))
return result;
data[0] = GST_BUFFER_DATA (outbuf);
data[1] = GST_BUFFER_DATA (outbuf) + video_yuv->width * video_yuv->height;
stride[0] = video_yuv->width;
stride[1] = video_yuv->width;
status =
device->vdp_video_surface_get_bits_ycbcr (surface,
VDP_YCBCR_FORMAT_NV12, (void *) data, stride);
if (G_UNLIKELY (status != VDP_STATUS_OK)) {
GST_ELEMENT_ERROR (video_yuv, RESOURCE, READ,
("Couldn't get data from vdpau"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
goto error;
}
break;
}
default:
break;
}
gst_buffer_unref (buffer);
gst_buffer_copy_metadata (outbuf, buffer, GST_BUFFER_COPY_TIMESTAMPS);
return gst_pad_push (video_yuv->src, outbuf);
error:
gst_buffer_unref (outbuf);
return GST_FLOW_ERROR;
}
static GstCaps *
gst_vdp_video_yuv_get_caps (GstVdpVideoYUV * video_yuv,
GstVdpDevice * device, gint chroma_type, gint width, gint height,
gint framerate_numerator, gint framerate_denominator, gint par_numerator,
gint par_denominator)
{
GstCaps *caps;
gint i;
caps = gst_caps_new_empty ();
for (i = 0; i < N_FORMATS; i++) {
VdpStatus status;
VdpBool is_supported;
if (formats[i].chroma_type != chroma_type)
continue;
status =
device->vdp_video_surface_query_ycbcr_capabilities (device->device,
chroma_type, formats[i].format, &is_supported);
if (status != VDP_STATUS_OK && status != VDP_STATUS_INVALID_Y_CB_CR_FORMAT) {
GST_ELEMENT_ERROR (video_yuv, RESOURCE, READ,
("Could not query VDPAU YCbCr capabilites"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return NULL;
}
if (is_supported) {
GstCaps *format_caps;
format_caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, formats[i].fourcc,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION, framerate_numerator,
framerate_denominator, "pixel-aspect-ratio", GST_TYPE_FRACTION,
par_numerator, par_denominator, NULL);
gst_caps_append (caps, format_caps);
}
}
if (gst_caps_is_empty (caps)) {
gst_caps_unref (caps);
return NULL;
}
return caps;
}
static gboolean
gst_vdp_video_yuv_sink_set_caps (GstPad * pad, GstCaps * caps)
{
GstVdpVideoYUV *video_yuv = GST_VDP_VIDEO_YUV (GST_OBJECT_PARENT (pad));
GstCaps *src_caps, *new_caps;
GstStructure *structure;
const GValue *value;
GstVdpDevice *device;
gint chroma_type;
gint width, height;
gint framerate_numerator, framerate_denominator;
gint par_numerator, par_denominator;
guint32 fourcc_format;
gboolean res;
structure = gst_caps_get_structure (caps, 0);
value = gst_structure_get_value (structure, "device");
device = g_value_get_object (value);
gst_structure_get_int (structure, "chroma-type", &chroma_type);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "height", &height);
gst_structure_get_fraction (structure, "framerate",
&framerate_numerator, &framerate_denominator);
gst_structure_get_fraction (structure, "pixel-aspect-ratio",
&par_numerator, &par_denominator);
src_caps =
gst_vdp_video_yuv_get_caps (video_yuv, device, chroma_type, width,
height, framerate_numerator, framerate_denominator, par_numerator,
par_denominator);
if (G_UNLIKELY (!src_caps))
return FALSE;
video_yuv->src_caps = src_caps;
src_caps = gst_pad_get_allowed_caps (video_yuv->src);
if (G_UNLIKELY (!src_caps || !gst_caps_get_size (src_caps)))
return FALSE;
new_caps = gst_caps_copy_nth (src_caps, 0);
gst_caps_unref (src_caps);
if (G_UNLIKELY (!new_caps))
return FALSE;
structure = gst_caps_get_structure (new_caps, 0);
gst_structure_get_fourcc (structure, "format", &fourcc_format);
gst_pad_fixate_caps (video_yuv->src, new_caps);
res = gst_pad_set_caps (video_yuv->src, new_caps);
gst_caps_unref (new_caps);
if (G_UNLIKELY (!res))
return FALSE;
video_yuv->width = width;
video_yuv->height = height;
video_yuv->framerate_numerator = framerate_numerator;
video_yuv->framerate_denominator = framerate_denominator;
video_yuv->format = fourcc_format;
return TRUE;
}
static GstCaps *
gst_vdp_video_yuv_src_getcaps (GstPad * pad)
{
GstVdpVideoYUV *video_yuv;
video_yuv = GST_VDP_VIDEO_YUV (GST_OBJECT_PARENT (pad));
if (video_yuv->src_caps)
return gst_caps_copy (video_yuv->src_caps);
if (GST_PAD_CAPS (video_yuv->src))
return gst_caps_copy (GST_PAD_CAPS (video_yuv->src));
return gst_caps_copy (gst_pad_get_pad_template_caps (video_yuv->src));
}
/* GObject vmethod implementations */
static void
gst_vdp_video_yuv_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_set_details_simple (element_class,
"VdpauVideoYUV",
"Covideo_yuv/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_video_yuv_class_init (GstVdpVideoYUVClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->finalize = gst_vdp_video_yuv_finalize;
gobject_class->set_property = gst_vdp_video_yuv_set_property;
gobject_class->get_property = gst_vdp_video_yuv_get_property;
}
static void
gst_vdp_video_yuv_init (GstVdpVideoYUV * video_yuv, GstVdpVideoYUVClass * klass)
{
video_yuv->src_caps = NULL;
video_yuv->height = 0;
video_yuv->width = 0;
video_yuv->framerate_numerator = 0;
video_yuv->framerate_denominator = 0;
video_yuv->par_numerator = 1;
video_yuv->par_denominator = 1;
video_yuv->src = gst_pad_new_from_static_template (&src_template, "src");
gst_pad_set_getcaps_function (video_yuv->src, gst_vdp_video_yuv_src_getcaps);
gst_element_add_pad (GST_ELEMENT (video_yuv), video_yuv->src);
video_yuv->sink = gst_pad_new_from_static_template (&sink_template, "sink");
gst_pad_set_setcaps_function (video_yuv->sink,
gst_vdp_video_yuv_sink_set_caps);
gst_pad_set_chain_function (video_yuv->sink, gst_vdp_video_yuv_chain);
gst_element_add_pad (GST_ELEMENT (video_yuv), video_yuv->sink);
gst_pad_set_active (video_yuv->sink, TRUE);
}
static void
gst_vdp_video_yuv_finalize (GObject * object)
{
GstVdpVideoYUV *video_yuv = (GstVdpVideoYUV *) object;
if (video_yuv->src_caps)
gst_caps_unref (video_yuv->src_caps);
}
static void
gst_vdp_video_yuv_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_video_yuv_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}