/*****************************************************************************
 * gstvlcpictureplaneallocator.h: VLC pictures wrapped by GstAllocator
 *****************************************************************************
 * Copyright (C) 2016 VLC authors and VideoLAN
 * $Id:
 *
 * Author: Vikram Fugro <vikram.fugro@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 2.1 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
 * Lesser 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 Street, Fifth Floor, Boston, MA  02110-1301 USA
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#ifndef VLC_GST_PICTURE_PLANE_ALLOCATOR_H_
#define VLC_GST_PICTURE_PLANE_ALLOCATOR_H_

#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideometa.h>

#include <vlc_common.h>
#include <vlc_codec.h>

typedef struct _GstVlcPicturePlane GstVlcPicturePlane;
typedef struct _GstVlcPicturePlaneAllocator GstVlcPicturePlaneAllocator;
typedef struct _GstVlcPicturePlaneAllocatorClass \
                                    GstVlcPicturePlaneAllocatorClass;

/* allocator functions */
#define GST_TYPE_VLC_PICTURE_PLANE_ALLOCATOR      \
    (gst_vlc_picture_plane_allocator_get_type())
#define GST_IS_VLC_PICTURE_PLANE_ALLOCATOR(obj)   \
    (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VLC_PICTURE_PLANE_ALLOCATOR))
#define GST_VLC_PICTURE_PLANE_ALLOCATOR(obj)      \
    (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VLC_PICTURE_PLANE_ALLOCATOR, \
    GstVlcPicturePlaneAllocator))
#define GST_VLC_PICTURE_PLANE_ALLOCATOR_CAST(obj) \
    ((GstVlcPicturePlaneAllocator*)(obj))

struct _GstVlcPicturePlane
{
    GstMemory parent;

    decoder_t *p_dec;
    picture_t *p_pic;
    plane_t *p_plane;
};

struct _GstVlcPicturePlaneAllocator
{
    GstAllocator parent;
    picture_t pic_info;;

    decoder_t *p_dec;
};

struct _GstVlcPicturePlaneAllocatorClass
{
    GstAllocatorClass parent_class;
};

GType gst_vlc_picture_plane_allocator_get_type( void );
GstVlcPicturePlaneAllocator* gst_vlc_picture_plane_allocator_new(
        decoder_t *p_dec );
bool gst_vlc_picture_plane_allocator_query_format(
        GstVlcPicturePlaneAllocator *p_gallocator, GstVideoInfo *p_info,
        GstVideoAlignment *p_align, GstCaps *p_caps );
bool gst_vlc_set_vout_fmt( GstVideoInfo *p_info, GstVideoAlignment *p_align,
        GstCaps *p_caps, decoder_t *p_dec );
void gst_vlc_dec_ensure_empty_queue( decoder_t* p_dec );
bool gst_vlc_picture_plane_allocator_hold( GstVlcPicturePlaneAllocator
        *p_allocator, GstBuffer *p_buffer );
void gst_vlc_picture_plane_allocator_release(
        GstVlcPicturePlaneAllocator *p_allocator, GstBuffer *p_buffer );
bool gst_vlc_picture_plane_allocator_alloc(
        GstVlcPicturePlaneAllocator *p_allocator,
        GstBuffer *p_buffer );
#endif