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/*
* GStreamer
* Copyright (c) 2010, Texas Instruments Incorporated
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation
* version 2.1 of the License.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* SECTION:element-ducativp7dec
*
* FIXME:Describe ducativp7dec here.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v -m fakesrc ! ducativp7dec ! fakesink silent=TRUE
* ]|
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "gstducativp7dec.h"
#define PADX 48
#define PADY 48
GST_BOILERPLATE (GstDucatiVP7Dec, gst_ducati_vp7dec, GstDucatiVidDec,
GST_TYPE_DUCATIVIDDEC);
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-vp7, "
"width = (int)[ 16, 2048 ], "
"height = (int)[ 16, 2048 ], "
"framerate = (fraction)[ 0, max ];")
);
/* GstDucatiVidDec vmethod implementations */
static void
gst_ducati_vp7dec_update_buffer_size (GstDucatiVidDec * self)
{
gint w = self->width;
gint h = self->height;
/* calculate output buffer parameters: */
self->padded_width = ALIGN2 (w + (2 * PADX), 7);
self->padded_height = h + 2 * PADY;
self->min_buffers = 8;
}
static gboolean
gst_ducati_vp7dec_allocate_params (GstDucatiVidDec * self, gint params_sz,
gint dynparams_sz, gint status_sz, gint inargs_sz, gint outargs_sz)
{
gboolean ret = parent_class->allocate_params (self,
sizeof (Ivp7VDEC_Params), sizeof (Ivp7VDEC_DynamicParams),
sizeof (Ivp7VDEC_Status), sizeof (Ivp7VDEC_InArgs),
sizeof (Ivp7VDEC_OutArgs));
if (ret) {
Ivp7VDEC_Params *params = (Ivp7VDEC_Params *) self->params;
self->params->displayDelay = IVIDDEC3_DECODE_ORDER;
self->dynParams->newFrameFlag = FALSE;
self->dynParams->lateAcquireArg = -1;
self->params->numInputDataUnits = 1;
self->params->numOutputDataUnits = 1;
params->ivfFormat = FALSE;
}
return ret;
}
/* this should be unneeded in future codec versions: */
static GstBuffer *
gst_ducati_vp7dec_push_input (GstDucatiVidDec * vdec, GstBuffer * buf)
{
guint32 sz;
if (G_UNLIKELY (vdec->first_in_buffer) && vdec->codec_data) {
// XXX none of the vp7 clips I've seen have codec_data..
}
/* current codec version requires size prepended on input buffer: */
sz = GST_BUFFER_SIZE (buf);
push_input (vdec, (guint8 *)&sz, 4);
push_input (vdec, GST_BUFFER_DATA (buf), sz);
gst_buffer_unref (buf);
return NULL;
}
/* GObject vmethod implementations */
static void
gst_ducati_vp7dec_base_init (gpointer gclass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
gst_element_class_set_details_simple (element_class,
"DucatiVP7Dec",
"Codec/Decoder/Video",
"Decodes video in On2 VP7 format with ducati",
"Rob Clark <rob@ti.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_factory));
}
static void
gst_ducati_vp7dec_class_init (GstDucatiVP7DecClass * klass)
{
GstDucatiVidDecClass *bclass = GST_DUCATIVIDDEC_CLASS (klass);
bclass->codec_name = "ivahd_vp7dec";
bclass->update_buffer_size =
GST_DEBUG_FUNCPTR (gst_ducati_vp7dec_update_buffer_size);
bclass->allocate_params =
GST_DEBUG_FUNCPTR (gst_ducati_vp7dec_allocate_params);
bclass->push_input =
GST_DEBUG_FUNCPTR (gst_ducati_vp7dec_push_input);
}
static void
gst_ducati_vp7dec_init (GstDucatiVP7Dec * self,
GstDucatiVP7DecClass * gclass)
{
}
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