mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-06 17:39:47 +00:00
150 lines
5.6 KiB
C
150 lines
5.6 KiB
C
/* GStreamer
|
|
* Copyright (C) 2020 Seungha Yang <seungha@centricular.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_VP8_DECODER_H__
|
|
#define __GST_VP8_DECODER_H__
|
|
|
|
#include <gst/codecs/codecs-prelude.h>
|
|
|
|
#include <gst/video/video.h>
|
|
#include <gst/codecparsers/gstvp8parser.h>
|
|
#include <gst/codecs/gstvp8picture.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_VP8_DECODER (gst_vp8_decoder_get_type())
|
|
#define GST_VP8_DECODER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VP8_DECODER,GstVp8Decoder))
|
|
#define GST_VP8_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VP8_DECODER,GstVp8DecoderClass))
|
|
#define GST_VP8_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_VP8_DECODER,GstVp8DecoderClass))
|
|
#define GST_IS_VP8_DECODER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VP8_DECODER))
|
|
#define GST_IS_VP8_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VP8_DECODER))
|
|
#define GST_VP8_DECODER_CAST(obj) ((GstVp8Decoder*)obj)
|
|
|
|
typedef struct _GstVp8Decoder GstVp8Decoder;
|
|
typedef struct _GstVp8DecoderClass GstVp8DecoderClass;
|
|
typedef struct _GstVp8DecoderPrivate GstVp8DecoderPrivate;
|
|
|
|
/**
|
|
* GstVp8Decoder:
|
|
*
|
|
* The opaque #GstVp8Decoder data structure.
|
|
*/
|
|
struct _GstVp8Decoder
|
|
{
|
|
/*< private >*/
|
|
GstVideoDecoder parent;
|
|
|
|
/*< protected >*/
|
|
GstVideoCodecState * input_state;
|
|
|
|
/* reference frames */
|
|
GstVp8Picture *last_picture;
|
|
GstVp8Picture *golden_ref_picture;
|
|
GstVp8Picture *alt_ref_picture;
|
|
|
|
/*< private >*/
|
|
GstVp8DecoderPrivate *priv;
|
|
gpointer padding[GST_PADDING_LARGE];
|
|
};
|
|
|
|
/**
|
|
* GstVp8DecoderClass:
|
|
* @new_sequence: Notifies subclass of SPS update
|
|
* @new_picture: Optional.
|
|
* Called whenever new #GstVp8Picture is created.
|
|
* Subclass can set implementation specific user data
|
|
* on the #GstVp8Picture via gst_vp8_picture_set_user_data()
|
|
* @start_picture: Optional.
|
|
* Called per one #GstVp8Picture to notify subclass to prepare
|
|
* decoding process for the #GstVp8Picture
|
|
* @decode_slice: Provides per slice data with parsed slice header and
|
|
* required raw bitstream for subclass to decode it
|
|
* @end_picture: Optional.
|
|
* Called per one #GstVp8Picture to notify subclass to finish
|
|
* decoding process for the #GstVp8Picture
|
|
* @output_picture: Called with a #GstVp8Picture which is required to be outputted.
|
|
* Subclass can retrieve parent #GstVideoCodecFrame by using
|
|
* gst_video_decoder_get_frame() with system_frame_number
|
|
* and the #GstVideoCodecFrame must be consumed by subclass via
|
|
* gst_video_decoder_{finish,drop,release}_frame().
|
|
*/
|
|
struct _GstVp8DecoderClass
|
|
{
|
|
GstVideoDecoderClass parent_class;
|
|
|
|
GstFlowReturn (*new_sequence) (GstVp8Decoder * decoder,
|
|
const GstVp8FrameHdr * frame_hdr);
|
|
|
|
/**
|
|
* GstVp8DecoderClass:new_picture:
|
|
* @decoder: a #GstVp8Decoder
|
|
* @frame: (transfer none): a #GstVideoCodecFrame
|
|
* @picture: (transfer none): a #GstVp8Picture
|
|
*/
|
|
GstFlowReturn (*new_picture) (GstVp8Decoder * decoder,
|
|
GstVideoCodecFrame * frame,
|
|
GstVp8Picture * picture);
|
|
|
|
GstFlowReturn (*start_picture) (GstVp8Decoder * decoder,
|
|
GstVp8Picture * picture);
|
|
|
|
GstFlowReturn (*decode_picture) (GstVp8Decoder * decoder,
|
|
GstVp8Picture * picture,
|
|
GstVp8Parser * parser);
|
|
|
|
GstFlowReturn (*end_picture) (GstVp8Decoder * decoder,
|
|
GstVp8Picture * picture);
|
|
|
|
/**
|
|
* GstVp8DecoderClass:output_picture:
|
|
* @decoder: a #GstVp8Decoder
|
|
* @frame: (transfer full): a #GstVideoCodecFrame
|
|
* @picture: (transfer full): a #GstVp8Picture
|
|
*/
|
|
GstFlowReturn (*output_picture) (GstVp8Decoder * decoder,
|
|
GstVideoCodecFrame * frame,
|
|
GstVp8Picture * picture);
|
|
|
|
/**
|
|
* GstVp8DecoderClass::get_preferred_output_delay:
|
|
* @decoder: a #GstVp8Decoder
|
|
* @is_live: whether upstream is live or not
|
|
*
|
|
* Optional. Called by baseclass to query whether delaying output is
|
|
* preferred by subclass or not.
|
|
*
|
|
* Returns: the number of perferred delayed output frame
|
|
*
|
|
* Since: 1.20
|
|
*/
|
|
guint (*get_preferred_output_delay) (GstVp8Decoder * decoder,
|
|
gboolean is_live);
|
|
|
|
/*< private >*/
|
|
gpointer padding[GST_PADDING_LARGE];
|
|
};
|
|
|
|
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstVp8Decoder, gst_object_unref)
|
|
|
|
GST_CODECS_API
|
|
GType gst_vp8_decoder_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_VP8_DECODER_H__ */
|