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ea9703362c
The start_frame() hook is called prior to traversing all decode-units for decoding. The unit argument represents the first slice in the frame. Some codecs (e.g. H.264) need to wait for the first slice in order to determine the actual VA context parameters.
146 lines
5.1 KiB
C
146 lines
5.1 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_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_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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G_END_DECLS
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#endif /* GST_VAAPI_DECODER_H */
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