gstreamer/sys/vdpau/gstvdp/gstvdpdecoder.c
2012-11-04 00:09:59 +00:00

326 lines
8.7 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvdpvideosrcpad.h"
#include "gstvdpdecoder.h"
GST_DEBUG_CATEGORY_STATIC (gst_vdp_decoder_debug);
#define GST_CAT_DEFAULT gst_vdp_decoder_debug
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_vdp_decoder_debug, "vdpdecoder", 0, \
"VDPAU decoder base class");
GST_BOILERPLATE_FULL (GstVdpDecoder, gst_vdp_decoder, GstBaseVideoDecoder,
GST_TYPE_BASE_VIDEO_DECODER, DEBUG_INIT);
enum
{
PROP_0,
PROP_DISPLAY
};
static GstFlowReturn
gst_vdp_decoder_shape_output (GstBaseVideoDecoder * base_video_decoder,
GstBuffer * buf)
{
GstVdpVideoSrcPad *vdp_pad;
vdp_pad =
(GstVdpVideoSrcPad *) GST_BASE_VIDEO_DECODER_SRC_PAD (base_video_decoder);
return gst_vdp_video_src_pad_push (vdp_pad, GST_VDP_VIDEO_BUFFER (buf));
}
static GstPad *
gst_vdp_decoder_create_srcpad (GstBaseVideoDecoder * base_video_decoder,
GstBaseVideoDecoderClass * base_video_decoder_class)
{
GstPadTemplate *pad_template;
GstVdpVideoSrcPad *vdp_pad;
pad_template = gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (base_video_decoder_class),
GST_BASE_VIDEO_DECODER_SRC_NAME);
vdp_pad = gst_vdp_video_src_pad_new (pad_template,
GST_BASE_VIDEO_DECODER_SRC_NAME);
return GST_PAD (vdp_pad);
}
void
gst_vdp_decoder_post_error (GstVdpDecoder * decoder, GError * error)
{
GstMessage *message;
g_return_if_fail (GST_IS_VDP_DECODER (decoder));
g_return_if_fail (decoder != NULL);
message = gst_message_new_error (GST_OBJECT (decoder), error, NULL);
gst_element_post_message (GST_ELEMENT (decoder), message);
g_error_free (error);
}
static GstFlowReturn
gst_vdp_decoder_alloc_buffer (GstVdpDecoder * vdp_decoder,
GstVdpVideoBuffer ** video_buf)
{
GstVdpVideoSrcPad *vdp_pad;
GstFlowReturn ret;
GError *err = NULL;
vdp_pad = (GstVdpVideoSrcPad *) GST_BASE_VIDEO_DECODER_SRC_PAD (vdp_decoder);
ret = gst_vdp_video_src_pad_alloc_buffer (vdp_pad, video_buf, &err);
if (ret == GST_FLOW_ERROR)
gst_vdp_decoder_post_error (vdp_decoder, err);
return ret;
}
GstFlowReturn
gst_vdp_decoder_render (GstVdpDecoder * vdp_decoder, VdpPictureInfo * info,
guint n_bufs, VdpBitstreamBuffer * bufs, GstVdpVideoBuffer ** video_buf)
{
GstFlowReturn ret;
GstVdpDevice *device;
VdpVideoSurface surface;
VdpStatus status;
ret = gst_vdp_decoder_alloc_buffer (vdp_decoder, video_buf);
if (ret != GST_FLOW_OK)
return ret;
device = (*video_buf)->device;
surface = (*video_buf)->surface;
status = device->vdp_decoder_render (vdp_decoder->decoder, surface,
info, n_bufs, bufs);
if (status != VDP_STATUS_OK)
goto decode_error;
return GST_FLOW_OK;
decode_error:
GST_ELEMENT_ERROR (vdp_decoder, RESOURCE, READ,
("Could not decode"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
gst_buffer_unref (GST_BUFFER_CAST (*video_buf));
return GST_FLOW_ERROR;
}
GstFlowReturn
gst_vdp_decoder_init_decoder (GstVdpDecoder * vdp_decoder,
VdpDecoderProfile profile, guint32 max_references)
{
GstVdpDevice *device;
VdpStatus status;
GstVideoState state;
device = vdp_decoder->device;
if (vdp_decoder->decoder != VDP_INVALID_HANDLE) {
status = device->vdp_decoder_destroy (vdp_decoder->decoder);
if (status != VDP_STATUS_OK)
goto destroy_decoder_error;
}
if (!gst_base_video_decoder_set_src_caps (GST_BASE_VIDEO_DECODER
(vdp_decoder)))
return GST_FLOW_NOT_NEGOTIATED;
state =
gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER (vdp_decoder));
status = device->vdp_decoder_create (device->device, profile,
state.width, state.height, max_references, &vdp_decoder->decoder);
if (status != VDP_STATUS_OK)
goto create_decoder_error;
return GST_FLOW_OK;
destroy_decoder_error:
GST_ELEMENT_ERROR (vdp_decoder, RESOURCE, READ,
("Could not destroy vdpau decoder"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
create_decoder_error:
GST_ELEMENT_ERROR (vdp_decoder, RESOURCE, READ,
("Could not create vdpau decoder"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
}
static gboolean
gst_vdp_decoder_start (GstBaseVideoDecoder * base_video_decoder)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (base_video_decoder);
GError *err;
GstVdpVideoSrcPad *vdp_pad;
err = NULL;
vdp_decoder->device = gst_vdp_get_device (vdp_decoder->display, &err);
if (G_UNLIKELY (!vdp_decoder->device))
goto device_error;
vdp_pad =
(GstVdpVideoSrcPad *) GST_BASE_VIDEO_DECODER_SRC_PAD (base_video_decoder);
g_object_set (G_OBJECT (vdp_pad), "device", vdp_decoder->device, NULL);
vdp_decoder->decoder = VDP_INVALID_HANDLE;
return TRUE;
device_error:
gst_vdp_decoder_post_error (vdp_decoder, err);
return FALSE;
}
static gboolean
gst_vdp_decoder_stop (GstBaseVideoDecoder * base_video_decoder)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (base_video_decoder);
if (vdp_decoder->decoder != VDP_INVALID_HANDLE) {
GstVdpDevice *device = vdp_decoder->device;
VdpStatus status;
status = device->vdp_decoder_destroy (vdp_decoder->decoder);
if (status != VDP_STATUS_OK) {
GST_ELEMENT_ERROR (vdp_decoder, RESOURCE, READ,
("Could not destroy vdpau decoder"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return FALSE;
}
}
g_object_unref (vdp_decoder->device);
return TRUE;
}
static void
gst_vdp_decoder_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (object);
switch (prop_id) {
case PROP_DISPLAY:
g_value_set_string (value, vdp_decoder->display);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_decoder_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (object);
switch (prop_id) {
case PROP_DISPLAY:
g_free (vdp_decoder->display);
vdp_decoder->display = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_decoder_finalize (GObject * object)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (object);
g_free (vdp_decoder->display);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_vdp_decoder_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstCaps *src_caps;
GstPadTemplate *src_template;
src_caps = gst_vdp_video_buffer_get_caps (TRUE, VDP_CHROMA_TYPE_420);
src_template = gst_pad_template_new (GST_BASE_VIDEO_DECODER_SRC_NAME,
GST_PAD_SRC, GST_PAD_ALWAYS, src_caps);
gst_element_class_add_pad_template (element_class, src_template);
}
static void
gst_vdp_decoder_init (GstVdpDecoder * vdp_decoder, GstVdpDecoderClass * klass)
{
vdp_decoder->display = NULL;
}
static void
gst_vdp_decoder_class_init (GstVdpDecoderClass * klass)
{
GObjectClass *object_class;
GstBaseVideoDecoderClass *base_video_decoder_class;
object_class = G_OBJECT_CLASS (klass);
base_video_decoder_class = GST_BASE_VIDEO_DECODER_CLASS (klass);
object_class->get_property = gst_vdp_decoder_get_property;
object_class->set_property = gst_vdp_decoder_set_property;
object_class->finalize = gst_vdp_decoder_finalize;
base_video_decoder_class->start = gst_vdp_decoder_start;
base_video_decoder_class->stop = gst_vdp_decoder_stop;
base_video_decoder_class->create_srcpad = gst_vdp_decoder_create_srcpad;
base_video_decoder_class->shape_output = gst_vdp_decoder_shape_output;
g_object_class_install_property (object_class,
PROP_DISPLAY, g_param_spec_string ("display", "Display", "X Display name",
NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
}