/*
 *  gstvaapidecoder_priv.h - VA decoder abstraction (private definitions)
 *
 *  gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
 *
 *  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; 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 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_VAAPI_DECODER_PRIV_H
#define GST_VAAPI_DECODER_PRIV_H

#include <glib.h>
#include <gst/gsttask.h>
#include <gst/vaapi/gstvaapidecoder.h>
#include <gst/vaapi/gstvaapicontext.h>

G_BEGIN_DECLS

#define GST_VAAPI_DECODER_CAST(decoder) ((GstVaapiDecoder *)(decoder))

/**
 * GST_VAAPI_DECODER_DISPLAY:
 * @decoder: a #GstVaapiDecoder
 *
 * Macro that evaluates to the #GstVaapiDisplay of @decoder.
 * This is an internal macro that does not do any run-time type check.
 */
#undef  GST_VAAPI_DECODER_DISPLAY
#define GST_VAAPI_DECODER_DISPLAY(decoder) \
    GST_VAAPI_DECODER_CAST(decoder)->priv->display

/**
 * GST_VAAPI_DECODER_CONTEXT:
 * @decoder: a #GstVaapiDecoder
 *
 * Macro that evaluates to the #GstVaapiContext of @decoder.
 * This is an internal macro that does not do any run-time type check.
 */
#undef  GST_VAAPI_DECODER_CONTEXT
#define GST_VAAPI_DECODER_CONTEXT(decoder) \
    GST_VAAPI_DECODER_CAST(decoder)->priv->context

/**
 * GST_VAAPI_DECODER_CODEC:
 * @decoder: a #GstVaapiDecoder
 *
 * Macro that evaluates to the #GstVaapiCodec of @decoder.
 * This is an internal macro that does not do any run-time type check.
 */
#undef  GST_VAAPI_DECODER_CODEC
#define GST_VAAPI_DECODER_CODEC(decoder) \
    GST_VAAPI_DECODER_CAST(decoder)->priv->codec

/**
 * GST_VAAPI_DECODER_CODEC_DATA:
 * @decoder: a #GstVaapiDecoder
 *
 * Macro that evaluates to the #GstBuffer holding optional codec data
 * for @decoder.
 * This is an internal macro that does not do any run-time type check.
 */
#undef  GST_VAAPI_DECODER_CODEC_DATA
#define GST_VAAPI_DECODER_CODEC_DATA(decoder) \
    GST_VAAPI_DECODER_CAST(decoder)->priv->codec_data

/**
 * GST_VAAPI_DECODER_WIDTH:
 * @decoder: a #GstVaapiDecoder
 *
 * Macro that evaluates to the coded width of the picture
 * This is an internal macro that does not do any run-time type check.
 */
#undef  GST_VAAPI_DECODER_WIDTH
#define GST_VAAPI_DECODER_WIDTH(decoder) \
    GST_VAAPI_DECODER_CAST(decoder)->priv->width

/**
 * GST_VAAPI_DECODER_HEIGHT:
 * @decoder: a #GstVaapiDecoder
 *
 * Macro that evaluates to the coded height of the picture
 * This is an internal macro that does not do any run-time type check.
 */
#undef  GST_VAAPI_DECODER_HEIGHT
#define GST_VAAPI_DECODER_HEIGHT(decoder) \
    GST_VAAPI_DECODER_CAST(decoder)->priv->height

/* End-of-Stream buffer */
#define GST_BUFFER_FLAG_EOS (GST_BUFFER_FLAG_LAST + 0)

#define GST_BUFFER_IS_EOS(buffer) \
    GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_EOS)

#define GST_VAAPI_DECODER_GET_PRIVATE(obj)                      \
    (G_TYPE_INSTANCE_GET_PRIVATE((obj),                         \
                                 GST_VAAPI_TYPE_DECODER,        \
                                 GstVaapiDecoderPrivate))

struct _GstVaapiDecoderPrivate {
    GstVaapiDisplay    *display;
    GstVaapiContext    *context;
    GstVaapiCodec       codec;
    GstBuffer          *codec_data;
    guint               width;
    guint               height;
    guint               fps_n;
    guint               fps_d;
    GQueue             *buffers;
    GQueue             *surfaces;
};

gboolean
gst_vaapi_decoder_ensure_context(
    GstVaapiDecoder    *decoder,
    GstVaapiProfile     profile,
    GstVaapiEntrypoint  entrypoint,
    guint               width,
    guint               height
) attribute_hidden;

gboolean
gst_vaapi_decoder_push_surface(
    GstVaapiDecoder *decoder,
    GstVaapiSurface *surface,
    GstClockTime     timestamp
) attribute_hidden;

G_END_DECLS

#endif /* GST_VAAPI_DECODER_PRIV_H */