gstreamer/sys/vdpau/gstvdpdecoder.c
2013-04-08 17:34:41 +01:00

354 lines
9.7 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 "gstvdpdecoder.h"
#include "gstvdpvideomemory.h"
#include "gstvdpvideobufferpool.h"
GST_DEBUG_CATEGORY_STATIC (gst_vdp_decoder_debug);
#define GST_CAT_DEFAULT gst_vdp_decoder_debug
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_vdp_decoder_debug, "vdpdecoder", 0, \
"VDPAU decoder base class");
#define gst_vdp_decoder_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVdpDecoder, gst_vdp_decoder, GST_TYPE_VIDEO_DECODER,
DEBUG_INIT);
enum
{
PROP_0,
PROP_DISPLAY
};
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);
}
GstFlowReturn
gst_vdp_decoder_render (GstVdpDecoder * vdp_decoder, VdpPictureInfo * info,
guint n_bufs, VdpBitstreamBuffer * bufs, GstVideoCodecFrame * frame)
{
GstFlowReturn ret;
VdpStatus status;
GstVdpVideoMemory *vmem;
GstClockTime before, after;
GST_DEBUG_OBJECT (vdp_decoder, "n_bufs:%d, frame:%d", n_bufs,
frame->system_frame_number);
ret =
gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (vdp_decoder),
frame);
if (ret != GST_FLOW_OK)
goto fail_alloc;
vmem = (GstVdpVideoMemory *) gst_buffer_get_memory (frame->output_buffer, 0);
if (!vmem
|| !gst_memory_is_type ((GstMemory *) vmem,
GST_VDP_VIDEO_MEMORY_ALLOCATOR))
goto no_mem;
GST_DEBUG_OBJECT (vdp_decoder, "Calling VdpDecoderRender()");
before = gst_util_get_timestamp ();
status =
vdp_decoder->device->vdp_decoder_render (vdp_decoder->decoder,
vmem->surface, info, n_bufs, bufs);
after = gst_util_get_timestamp ();
if (status != VDP_STATUS_OK)
goto decode_error;
GST_DEBUG_OBJECT (vdp_decoder, "VdpDecoderRender() took %" GST_TIME_FORMAT,
GST_TIME_ARGS (after - before));
return GST_FLOW_OK;
decode_error:
GST_ELEMENT_ERROR (vdp_decoder, RESOURCE, READ,
("Could not decode"),
("Error returned from vdpau was: %s",
vdp_decoder->device->vdp_get_error_string (status)));
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (vdp_decoder), frame);
return GST_FLOW_ERROR;
fail_alloc:
{
GST_WARNING_OBJECT (vdp_decoder, "Failed to get an output frame");
return ret;
}
no_mem:
{
GST_ERROR_OBJECT (vdp_decoder, "Didn't get VdpVideoSurface backed buffer");
return GST_FLOW_ERROR;
}
}
GstFlowReturn
gst_vdp_decoder_init_decoder (GstVdpDecoder * vdp_decoder,
VdpDecoderProfile profile, guint32 max_references,
GstVideoCodecState * output_state)
{
GstVdpDevice *device;
VdpStatus status;
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;
}
GST_DEBUG_OBJECT (vdp_decoder,
"device:%u, profile:%d, width:%d, height:%d, max_references:%d",
device->device, profile, output_state->info.width,
output_state->info.height, max_references);
status = device->vdp_decoder_create (device->device, profile,
output_state->info.width, output_state->info.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_decide_allocation (GstVideoDecoder * video_decoder,
GstQuery * query)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (video_decoder);
GstCaps *outcaps;
GstBufferPool *pool = NULL;
guint size, min = 0, max = 0;
GstStructure *config;
GstVideoInfo vinfo;
gboolean update_pool;
gst_query_parse_allocation (query, &outcaps, NULL);
gst_video_info_init (&vinfo);
gst_video_info_from_caps (&vinfo, outcaps);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
size = MAX (size, vinfo.size);
update_pool = TRUE;
} else {
pool = NULL;
size = vinfo.size;
min = max = 0;
update_pool = FALSE;
}
if (pool == NULL
|| !gst_buffer_pool_has_option (pool,
GST_BUFFER_POOL_OPTION_VDP_VIDEO_META)) {
/* no pool, we can make our own */
GST_DEBUG_OBJECT (video_decoder,
"no pool or doesn't support GstVdpVideoMeta, making new pool");
pool = gst_vdp_video_buffer_pool_new (vdp_decoder->device);
}
/* now configure */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VDP_VIDEO_META);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config (pool, config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
if (pool)
gst_object_unref (pool);
return TRUE;
}
static gboolean
gst_vdp_decoder_start (GstVideoDecoder * video_decoder)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (video_decoder);
GError *err = NULL;
GST_DEBUG_OBJECT (video_decoder, "Starting");
vdp_decoder->device = gst_vdp_get_device (vdp_decoder->display, &err);
if (G_UNLIKELY (!vdp_decoder->device))
goto device_error;
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 (GstVideoDecoder * video_decoder)
{
GstVdpDecoder *vdp_decoder = GST_VDP_DECODER (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_init (GstVdpDecoder * vdp_decoder)
{
}
static void
gst_vdp_decoder_class_init (GstVdpDecoderClass * klass)
{
GObjectClass *object_class;
GstVideoDecoderClass *video_decoder_class;
GstElementClass *element_class;
GstCaps *src_caps;
GstPadTemplate *src_template;
object_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
video_decoder_class = GST_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;
video_decoder_class->start = gst_vdp_decoder_start;
video_decoder_class->stop = gst_vdp_decoder_stop;
video_decoder_class->decide_allocation = gst_vdp_decoder_decide_allocation;
GST_FIXME ("Actually create srcpad template from hw capabilities");
src_caps = gst_caps_from_string ("video/x-raw,format={ YV12 }");
src_template = gst_pad_template_new (GST_VIDEO_DECODER_SRC_NAME,
GST_PAD_SRC, GST_PAD_ALWAYS, src_caps);
gst_element_class_add_pad_template (element_class, src_template);
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));
}