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9a364464f0
Pass the current frame to the duplicate_picture callback. This makes it easier to set the frame's output_buffer if we already have one available. Also documented that unlike VP9, it is not optional to implement this as the picture will populate the DPB if it is a key-frame. To ensure this, remove the default implementation. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1992>
176 lines
5.8 KiB
C
176 lines
5.8 KiB
C
/* GStreamer
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* Copyright (C) 2020 He Junyan <junyan.he@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_AV1_DECODER_H__
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#define __GST_AV1_DECODER_H__
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#include <gst/codecs/codecs-prelude.h>
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#include <gst/video/video.h>
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#include <gst/codecparsers/gstav1parser.h>
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#include <gst/codecs/gstav1picture.h>
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G_BEGIN_DECLS
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#define GST_TYPE_AV1_DECODER (gst_av1_decoder_get_type())
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#define GST_AV1_DECODER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AV1_DECODER,GstAV1Decoder))
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#define GST_AV1_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AV1_DECODER,GstAV1DecoderClass))
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#define GST_AV1_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_AV1_DECODER,GstAV1DecoderClass))
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#define GST_IS_AV1_DECODER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AV1_DECODER))
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#define GST_IS_AV1_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AV1_DECODER))
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typedef struct _GstAV1Decoder GstAV1Decoder;
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typedef struct _GstAV1DecoderClass GstAV1DecoderClass;
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typedef struct _GstAV1DecoderPrivate GstAV1DecoderPrivate;
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/**
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* GstAV1Decoder:
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*
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* The opaque #GstAV1Decoder data structure.
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*
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* Since: 1.20
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*/
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struct _GstAV1Decoder
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{
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/*< private >*/
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GstVideoDecoder parent;
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/*< protected >*/
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GstVideoCodecState * input_state;
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/*< private >*/
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GstAV1DecoderPrivate *priv;
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gpointer padding[GST_PADDING_LARGE];
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};
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/**
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* GstAV1DecoderClass:
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*/
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struct _GstAV1DecoderClass
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{
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GstVideoDecoderClass parent_class;
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/**
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* GstAV1DecoderClass::new_sequence:
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* @decoder: a #GstAV1Decoder
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* @seq_hdr: a #GstAV1SequenceHeaderOBU
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*
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* Notifies subclass of SPS update
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*
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* Since: 1.20
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*/
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GstFlowReturn (*new_sequence) (GstAV1Decoder * decoder,
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const GstAV1SequenceHeaderOBU * seq_hdr);
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/**
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* GstAV1DecoderClass::new_picture:
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* @decoder: a #GstAV1Decoder
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* @frame: (transfer none): a #GstVideoCodecFrame
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* @picture: (transfer none): a #GstAV1Picture
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*
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* Optional. Called whenever new #GstAV1Picture is created.
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* Subclass can set implementation specific user data
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* on the #GstAV1Picture via gst_av1_picture_set_user_data()
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*
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* Since: 1.20
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*/
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GstFlowReturn (*new_picture) (GstAV1Decoder * decoder,
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GstVideoCodecFrame * frame,
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GstAV1Picture * picture);
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/**
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* GstAV1DecoderClass::duplicate_picture:
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* @decoder: a #GstAV1Decoder
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* @picture: (transfer none): a #GstAV1Picture
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* @frame: (transfer none): the current #GstVideoCodecFrame
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*
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* Called when need to duplicate an existing #GstAV1Picture. As
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* duplicated key-frame will populate the DPB, this virtual
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* function is not optional.
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*
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* Since: 1.22
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*/
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GstAV1Picture * (*duplicate_picture) (GstAV1Decoder * decoder,
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GstVideoCodecFrame * frame,
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GstAV1Picture * picture);
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/**
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* GstAV1DecoderClass::start_picture:
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* @decoder: a #GstAV1Decoder
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* @picture: (transfer none): a #GstAV1Picture
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* @dpb: (transfer none): a #GstAV1Dpb
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*
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* Optional. Called per one #GstAV1Picture to notify subclass to prepare
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* decoding process for the #GstAV1Picture
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*
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* Since: 1.20
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*/
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GstFlowReturn (*start_picture) (GstAV1Decoder * decoder,
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GstAV1Picture * picture,
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GstAV1Dpb * dpb);
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/**
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* GstAV1DecoderClass::decode_tile:
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* @decoder: a #GstAV1Decoder
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* @picture: (transfer none): a #GstAV1Picture
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* @tile: (transfer none): a #GstAV1Tile
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*
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* Provides the tile data with tile group header and required raw
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* bitstream for subclass to decode it.
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*
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* Since: 1.20
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*/
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GstFlowReturn (*decode_tile) (GstAV1Decoder * decoder,
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GstAV1Picture * picture,
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GstAV1Tile * tile);
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/**
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* GstAV1DecoderClass::end_picture:
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* @decoder: a #GstAV1Decoder
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* @picture: (transfer none): a #GstAV1Picture
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*
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* Optional. Called per one #GstAV1Picture to notify subclass to finish
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* decoding process for the #GstAV1Picture
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*
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* Since: 1.20
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*/
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GstFlowReturn (*end_picture) (GstAV1Decoder * decoder,
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GstAV1Picture * picture);
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/**
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* GstAV1DecoderClass::output_picture:
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* @decoder: a #GstAV1Decoder
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* @frame: (transfer full): a #GstVideoCodecFrame
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* @picture: (transfer full): a #GstAV1Picture
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*
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* Called with a #GstAV1Picture which is required to be outputted.
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* The #GstVideoCodecFrame must be consumed by subclass.
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*
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* Since: 1.20
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*/
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GstFlowReturn (*output_picture) (GstAV1Decoder * decoder,
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GstVideoCodecFrame * frame,
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GstAV1Picture * picture);
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/*< private >*/
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gpointer padding[GST_PADDING_LARGE];
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};
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAV1Decoder, gst_object_unref)
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GST_CODECS_API
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GType gst_av1_decoder_get_type (void);
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G_END_DECLS
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#endif /* __GST_AV1_DECODER_H__ */
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