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/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.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.
*/
#ifndef __GST_VP9_DECODER_H__
#define __GST_VP9_DECODER_H__
#include <gst/codecs/codecs-prelude.h>
#include <gst/video/video.h>
#include <gst/codecs/gstvp9picture.h>
G_BEGIN_DECLS
#define GST_TYPE_VP9_DECODER (gst_vp9_decoder_get_type())
#define GST_VP9_DECODER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VP9_DECODER,GstVp9Decoder))
#define GST_VP9_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VP9_DECODER,GstVp9DecoderClass))
#define GST_VP9_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_VP9_DECODER,GstVp9DecoderClass))
#define GST_IS_VP9_DECODER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VP9_DECODER))
#define GST_IS_VP9_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VP9_DECODER))
#define GST_VP9_DECODER_CAST(obj) ((GstVP9Decoder*)obj)
typedef struct _GstVp9Decoder GstVp9Decoder;
typedef struct _GstVp9DecoderClass GstVp9DecoderClass;
typedef struct _GstVp9DecoderPrivate GstVp9DecoderPrivate;
/**
* GstVp9Decoder:
*
* The opaque #GstVp9Decoder data structure.
*/
struct _GstVp9Decoder
{
/*< private >*/
GstVideoDecoder parent;
/*< protected >*/
GstVideoCodecState * input_state;
/*< private >*/
GstVp9DecoderPrivate *priv;
gpointer padding[GST_PADDING_LARGE];
};
/**
* GstVp9DecoderClass:
*/
struct _GstVp9DecoderClass
{
GstVideoDecoderClass parent_class;
/**
* GstVp9Decoder::new_sequence:
*
* Notifies subclass of video sequence update such as resolution, bitdepth,
* profile.
*
* Since: 1.18
*/
gboolean (*new_sequence) (GstVp9Decoder * decoder,
const GstVp9FrameHeader *frame_hdr);
/**
* GstVp9Decoder:new_picture:
* @decoder: a #GstVp9Decoder
* @frame: (transfer none): a #GstVideoCodecFrame
* @picture: (transfer none): a #GstVp9Picture
*
* Optional. Called whenever new #GstVp9Picture is created.
* Subclass can set implementation specific user data on the #GstVp9Picture
* via gst_vp9_picture_set_user_data()
*
* Since: 1.18
*/
gboolean (*new_picture) (GstVp9Decoder * decoder,
GstVideoCodecFrame * frame,
GstVp9Picture * picture);
/**
* GstVp9Decoder:duplicate_picture:
* @decoder: a #GstVp9Decoder
* @frame: (transfer none): a #GstVideoCodecFrame
* @picture: (transfer none): a #GstVp9Picture to be duplicated
*
* Optional. Called to duplicate @picture when show_existing_frame flag is set
* in the parsed vp9 frame header. Returned #GstVp9Picture from this method
* should hold already decoded picture data corresponding to the @picture,
* since the returned #GstVp9Picture from this method will be passed to
* the output_picture method immediately without additional decoding process.
*
* If this method is not implemented by subclass, baseclass will drop
* current #GstVideoCodecFrame without additional processing for the current
* frame.
*
* Returns: (transfer full): a #GstVp9Picture or %NULL if failed to duplicate
* @picture.
*
* Since: 1.18
*/
GstVp9Picture * (*duplicate_picture) (GstVp9Decoder * decoder,
GstVideoCodecFrame * frame,
GstVp9Picture * picture);
/**
* GstVp9Decoder:start_picture:
* @decoder: a #GstVp9Decoder
* @picture: (transfer none): a #GstVp9Picture
*
* Optional. Called to notify subclass to prepare decoding process for
* @picture
*
* Since: 1.18
*/
gboolean (*start_picture) (GstVp9Decoder * decoder,
GstVp9Picture * picture);
/**
* GstVp9Decoder:decode_picture:
* @decoder: a #GstVp9Decoder
* @picture: (transfer none): a #GstVp9Picture to decoder
* @dpb: (transfer none): a #GstVp9Dpb
*
* Called to notify decoding for subclass to decoder given @picture with
* given @dpb
*
* Since: 1.18
*/
gboolean (*decode_picture) (GstVp9Decoder * decoder,
GstVp9Picture * picture,
GstVp9Dpb * dpb);
/**
* GstVp9Decoder::end_picture:
* @decoder: a #GstVp9Decoder
* @picture: (transfer none): a #GstVp9Picture
*
* Optional. Called per one #GstVp9Picture to notify subclass to finish
* decoding process for the #GstVp9Picture
*
* Since: 1.18
*/
gboolean (*end_picture) (GstVp9Decoder * decoder,
GstVp9Picture * picture);
/**
* GstVp9Decoder:output_picture:
* @decoder: a #GstVp9Decoder
* @frame: (transfer full): a #GstVideoCodecFrame
* @picture: (transfer full): a #GstVp9Picture
*
* Called to notify @picture is ready to be outputted.
*
* Since: 1.18
*/
GstFlowReturn (*output_picture) (GstVp9Decoder * decoder,
GstVideoCodecFrame * frame,
GstVp9Picture * picture);
/*< private >*/
gpointer padding[GST_PADDING_LARGE];
};
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstVp9Decoder, gst_object_unref)
GST_CODECS_API
GType gst_vp9_decoder_get_type (void);
G_END_DECLS
#endif /* __GST_VP9_DECODER_H__ */
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