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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
*/
#ifndef __GST_DUCATIVIDDEC_H__
#define __GST_DUCATIVIDDEC_H__
#include "gstducati.h"
#include "gstducatibufferpool.h"
#include <gst/video/video.h>
G_BEGIN_DECLS
#define GST_TYPE_DUCATIVIDDEC (gst_ducati_viddec_get_type())
#define GST_DUCATIVIDDEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_DUCATIVIDDEC, GstDucatiVidDec))
#define GST_DUCATIVIDDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_DUCATIVIDDEC, GstDucatiVidDecClass))
#define GST_IS_DUCATIVIDDEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_DUCATIVIDDEC))
#define GST_IS_DUCATIVIDDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_DUCATIVIDDEC))
#define GST_DUCATIVIDDEC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_DUCATIVIDDEC, GstDucatiVidDecClass))
typedef struct _GstDucatiVidDec GstDucatiVidDec;
typedef struct _GstDucatiVidDecClass GstDucatiVidDecClass;
struct _GstDucatiVidDec
{
GstElement parent;
GstPad *sinkpad, *srcpad;
GstBufferPool *pool;
/* minimum output size required by the codec: */
gint outsize;
/* minimum number of buffers required by the codec: */
gint min_buffers;
/* input (unpadded) size of video: */
gint width, height;
/* output (padded) size including any codec padding: */
gint padded_width, padded_height;
/* output stride (>= padded_width) */
gint stride;
/* input buffer, allocated when codec is created: */
guint8 *input;
/* number of bytes pushed to input on current frame: */
gint in_size;
/* on first output buffer, we need to send crop info to sink.. and some
* operations like flushing should be avoided if we haven't sent any
* input buffers:
*/
gboolean first_in_buffer;
/* by default, codec_data from sinkpad is prepended to first buffer: */
GstBuffer *codec_data;
Engine_Handle engine;
VIDDEC3_Handle codec;
VIDDEC3_Params *params;
VIDDEC3_DynamicParams *dynParams;
VIDDEC3_Status *status;
XDM2_BufDesc *inBufs;
XDM2_BufDesc *outBufs;
VIDDEC3_InArgs *inArgs;
VIDDEC3_OutArgs *outArgs;
XDAS_Int16 pageMemType;
};
struct _GstDucatiVidDecClass
{
GstElementClass parent_class;
const gchar *codec_name;
/**
* Parse codec specific fields the given caps structure. The base-
* class implementation of this method handles standard stuff like
* width/height/framerate/codec_data.
*/
gboolean (*parse_caps) (GstDucatiVidDec * self, GstStructure * s);
/**
* Called when the input buffer size changes, to recalculate codec required
* output buffer size and minimum count
*/
void (*update_buffer_size) (GstDucatiVidDec * self);
/**
* Called to allocate/initialize params/dynParams/status/inArgs/outArgs
*/
gboolean (*allocate_params) (GstDucatiVidDec * self, gint params_sz,
gint dynparams_sz, gint status_sz, gint inargs_sz, gint outargs_sz);
/**
* Push input data into codec's input buffer, returning a sub-buffer of
* any remaining data, or NULL if none. Consumes reference to 'buf'
*/
GstBuffer * (*push_input) (GstDucatiVidDec * self, GstBuffer * buf);
};
GType gst_ducati_viddec_get_type (void);
/* helper methods for derived classes: */
static inline void
push_input (GstDucatiVidDec * self, guint8 *in, gint sz)
{
GST_DEBUG_OBJECT (self, "push: %d bytes)", sz);
memcpy (self->input + self->in_size, in, sz);
self->in_size += sz;
}
G_END_DECLS
#endif /* __GST_DUCATIVIDDEC_H__ */
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