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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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6bed9ebe0f
Introduce new decoding process whereby a GstVideoCodecFrame is created first. Next, input stream buffers are accumulated into a GstAdapter, that is then passed to the _parse() function. The GstVaapiDecoder object accumulates all parsed units and when a complete frame or field is detected, that GstVideoCodecFrame is passed to the _decode() function. Ultimately, the caller receives a GstVaapiSurfaceProxy if decoding process was successful.
157 lines
5.5 KiB
C
157 lines
5.5 KiB
C
/*
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* gstvaapidecoder.h - VA decoder abstraction
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Copyright (C) 2011 Intel Corporation
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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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_DECODER_H
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#define GST_VAAPI_DECODER_H
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#include <gst/gstbuffer.h>
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#include <gst/base/gstadapter.h>
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#include <gst/vaapi/gstvaapicontext.h>
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#include <gst/vaapi/gstvaapisurfaceproxy.h>
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#include <gst/video/gstvideoutils.h>
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G_BEGIN_DECLS
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#define GST_VAAPI_TYPE_DECODER \
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(gst_vaapi_decoder_get_type())
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#define GST_VAAPI_DECODER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), \
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GST_VAAPI_TYPE_DECODER, \
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GstVaapiDecoder))
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#define GST_VAAPI_DECODER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), \
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GST_VAAPI_TYPE_DECODER, \
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GstVaapiDecoderClass))
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#define GST_VAAPI_IS_DECODER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_DECODER))
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#define GST_VAAPI_IS_DECODER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_DECODER))
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#define GST_VAAPI_DECODER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj), \
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GST_VAAPI_TYPE_DECODER, \
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GstVaapiDecoderClass))
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typedef struct _GstVaapiDecoder GstVaapiDecoder;
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typedef struct _GstVaapiDecoderPrivate GstVaapiDecoderPrivate;
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typedef struct _GstVaapiDecoderClass GstVaapiDecoderClass;
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struct _GstVaapiDecoderUnit;
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/**
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* GstVaapiDecoderStatus:
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* @GST_VAAPI_DECODER_STATUS_SUCCESS: Success.
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* @GST_VAAPI_DECODER_STATUS_END_OF_STREAM: End-Of-Stream.
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* @GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED: No memory left.
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* @GST_VAAPI_DECODER_STATUS_ERROR_INIT_FAILED: Decoder initialization failure.
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* @GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC: Unsupported codec.
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* @GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA: Not enough input data to decode.
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* @GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE: No surface left to hold the decoded picture.
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* @GST_VAAPI_DECODER_STATUS_ERROR_INVALID_SURFACE: Invalid surface.
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* @GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER: Invalid or unsupported bitstream data.
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* @GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE: Unsupported codec profile.
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* @GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT: Unsupported chroma format.
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* @GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER: Unsupported parameter.
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* @GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN: Unknown error.
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*
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* Decoder status for gst_vaapi_decoder_get_surface().
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*/
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typedef enum {
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GST_VAAPI_DECODER_STATUS_SUCCESS = 0,
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GST_VAAPI_DECODER_STATUS_END_OF_STREAM,
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GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED,
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GST_VAAPI_DECODER_STATUS_ERROR_INIT_FAILED,
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GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC,
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GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA,
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GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE,
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GST_VAAPI_DECODER_STATUS_ERROR_INVALID_SURFACE,
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GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER,
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GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE,
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GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT,
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GST_VAAPI_DECODER_STATUS_ERROR_INVALID_PARAMETER,
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GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN = -1
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} GstVaapiDecoderStatus;
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/**
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* GstVaapiDecoder:
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*
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* A VA decoder base instance.
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*/
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struct _GstVaapiDecoder {
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/*< private >*/
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GObject parent_instance;
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GstVaapiDecoderPrivate *priv;
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};
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/**
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* GstVaapiDecoderClass:
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*
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* A VA decoder base class.
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*/
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struct _GstVaapiDecoderClass {
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/*< private >*/
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GObjectClass parent_class;
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GstVaapiDecoderStatus (*parse)(GstVaapiDecoder *decoder,
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GstAdapter *adapter, gboolean at_eos,
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struct _GstVaapiDecoderUnit **unit_ptr);
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GstVaapiDecoderStatus (*decode)(GstVaapiDecoder *decoder,
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struct _GstVaapiDecoderUnit *unit);
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GstVaapiDecoderStatus (*start_frame)(GstVaapiDecoder *decoder,
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struct _GstVaapiDecoderUnit *unit);
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GstVaapiDecoderStatus (*end_frame)(GstVaapiDecoder *decoder);
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};
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GType
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gst_vaapi_decoder_get_type(void) G_GNUC_CONST;
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GstVaapiCodec
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gst_vaapi_decoder_get_codec(GstVaapiDecoder *decoder);
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GstCaps *
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gst_vaapi_decoder_get_caps(GstVaapiDecoder *decoder);
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gboolean
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gst_vaapi_decoder_put_buffer(GstVaapiDecoder *decoder, GstBuffer *buf);
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GstVaapiSurfaceProxy *
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gst_vaapi_decoder_get_surface(
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GstVaapiDecoder *decoder,
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GstVaapiDecoderStatus *pstatus
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);
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GstVaapiDecoderStatus
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gst_vaapi_decoder_parse(GstVaapiDecoder *decoder,
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GstVideoCodecFrame *frame, GstAdapter *adapter, gboolean at_eos,
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guint *got_unit_size_ptr, gboolean *got_frame_ptr);
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GstVaapiDecoderStatus
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gst_vaapi_decoder_decode(GstVaapiDecoder *decoder,
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GstVideoCodecFrame *frame, GstVaapiSurfaceProxy **out_proxy_ptr);
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G_END_DECLS
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#endif /* GST_VAAPI_DECODER_H */
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