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f52dfe5797
Split the input buffer data into decoder units that represent a JPEG segment. Handle scan decoder unit specifically so that it can include both the scan header (SOS) but also any other ECS or RSTi segment. That way, we parse the input buffer stream only once at the gst-vaapi level instead of (i) in gst_vaapi_decoder_jpeg_parse() to split the stream into frames SOI .. EOI and (ii) in decode_buffer() to further determine segment boundaries and decode them. In practice, this is a +15 to +25% performance improvement.
290 lines
8.4 KiB
C
290 lines
8.4 KiB
C
/*
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* gstvaapidecoder_priv.h - VA decoder abstraction (private definitions)
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Copyright (C) 2011-2013 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_PRIV_H
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#define GST_VAAPI_DECODER_PRIV_H
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#include <glib.h>
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#include <gst/vaapi/gstvaapidecoder.h>
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#include <gst/vaapi/gstvaapidecoder_unit.h>
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#include <gst/vaapi/gstvaapicontext.h>
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#include "gstvaapiminiobject.h"
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G_BEGIN_DECLS
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#define GST_VAAPI_DECODER_CAST(decoder) \
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((GstVaapiDecoder *)(decoder))
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#define GST_VAAPI_DECODER_CLASS(klass) \
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((GstVaapiDecoderClass *)(klass))
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#define GST_VAAPI_IS_DECODER_CLASS(klass) \
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((klass) != NULL))
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#define GST_VAAPI_DECODER_GET_CLASS(obj) \
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GST_VAAPI_DECODER_CLASS(GST_VAAPI_MINI_OBJECT_GET_CLASS(obj))
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typedef struct _GstVaapiDecoderClass GstVaapiDecoderClass;
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struct _GstVaapiDecoderUnit;
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/**
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* GST_VAAPI_PARSER_STATE:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the #GstVaapiParserState of @decoder.
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_PARSER_STATE
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#define GST_VAAPI_PARSER_STATE(decoder) \
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(&GST_VAAPI_DECODER_CAST(decoder)->parser_state)
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/**
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* GST_VAAPI_DECODER_DISPLAY:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the #GstVaapiDisplay of @decoder.
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_DISPLAY
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#define GST_VAAPI_DECODER_DISPLAY(decoder) \
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GST_VAAPI_DECODER_CAST(decoder)->display
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/**
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* GST_VAAPI_DECODER_CONTEXT:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the #GstVaapiContext of @decoder.
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_CONTEXT
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#define GST_VAAPI_DECODER_CONTEXT(decoder) \
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GST_VAAPI_DECODER_CAST(decoder)->context
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/**
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* GST_VAAPI_DECODER_CODEC:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the #GstVaapiCodec of @decoder.
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_CODEC
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#define GST_VAAPI_DECODER_CODEC(decoder) \
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GST_VAAPI_DECODER_CAST(decoder)->codec
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/**
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* GST_VAAPI_DECODER_CODEC_STATE:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the #GstVideoCodecState holding codec state
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* for @decoder.
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_CODEC_STATE
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#define GST_VAAPI_DECODER_CODEC_STATE(decoder) \
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GST_VAAPI_DECODER_CAST(decoder)->codec_state
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/**
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* GST_VAAPI_DECODER_CODEC_DATA:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the #GstBuffer holding optional codec data
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* for @decoder.
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_CODEC_DATA
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#define GST_VAAPI_DECODER_CODEC_DATA(decoder) \
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GST_VAAPI_DECODER_CODEC_STATE(decoder)->codec_data
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/**
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* GST_VAAPI_DECODER_CODEC_FRAME:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the #GstVideoCodecFrame holding decoder
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* units for the current frame.
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_CODEC_FRAME
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#define GST_VAAPI_DECODER_CODEC_FRAME(decoder) \
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GST_VAAPI_PARSER_STATE(decoder)->current_frame
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/**
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* GST_VAAPI_DECODER_WIDTH:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the coded width of the picture
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_WIDTH
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#define GST_VAAPI_DECODER_WIDTH(decoder) \
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GST_VAAPI_DECODER_CODEC_STATE(decoder)->info.width
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/**
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* GST_VAAPI_DECODER_HEIGHT:
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* @decoder: a #GstVaapiDecoder
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*
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* Macro that evaluates to the coded height of the picture
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* This is an internal macro that does not do any run-time type check.
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*/
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#undef GST_VAAPI_DECODER_HEIGHT
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#define GST_VAAPI_DECODER_HEIGHT(decoder) \
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GST_VAAPI_DECODER_CODEC_STATE(decoder)->info.height
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/* End-of-Stream buffer */
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#define GST_BUFFER_FLAG_EOS (GST_BUFFER_FLAG_LAST + 0)
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#define GST_BUFFER_IS_EOS(buffer) \
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GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_EOS)
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#define GST_VAAPI_DECODER_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE((obj), \
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GST_VAAPI_TYPE_DECODER, \
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GstVaapiDecoderPrivate))
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typedef enum {
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GST_VAAPI_DECODER_STATUS_DROP_FRAME = -2
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} GstVaapiDecoderStatusPrivate;
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typedef struct _GstVaapiParserState GstVaapiParserState;
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struct _GstVaapiParserState {
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GstVideoCodecFrame *current_frame;
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GstAdapter *current_adapter;
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GstAdapter *input_adapter;
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gint input_offset1;
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gint input_offset2;
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GstAdapter *output_adapter;
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GstVaapiDecoderUnit next_unit;
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guint next_unit_pending : 1;
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guint at_eos : 1;
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};
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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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GstVaapiMiniObject parent_instance;
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gpointer user_data;
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GstVaapiDisplay *display;
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VADisplay va_display;
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GstVaapiContext *context;
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VAContextID va_context;
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GstVaapiCodec codec;
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GstVideoCodecState *codec_state;
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GAsyncQueue *buffers;
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GAsyncQueue *frames;
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GstVaapiParserState parser_state;
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GstVaapiDecoderStateChangedFunc codec_state_changed_func;
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gpointer codec_state_changed_data;
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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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GstVaapiMiniObjectClass parent_class;
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gboolean (*create)(GstVaapiDecoder *decoder);
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void (*destroy)(GstVaapiDecoder *decoder);
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GstVaapiDecoderStatus (*parse)(GstVaapiDecoder *decoder,
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GstAdapter *adapter, gboolean at_eos,
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struct _GstVaapiDecoderUnit *unit);
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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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GstVaapiDecoderStatus (*flush)(GstVaapiDecoder *decoder);
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GstVaapiDecoderStatus (*decode_codec_data)(GstVaapiDecoder *decoder,
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const guchar *buf, guint buf_size);
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};
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G_GNUC_INTERNAL
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GstVaapiDecoder *
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gst_vaapi_decoder_new(const GstVaapiDecoderClass *klass,
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GstVaapiDisplay *display, GstCaps *caps);
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G_GNUC_INTERNAL
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void
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gst_vaapi_decoder_finalize(GstVaapiDecoder *decoder);
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G_GNUC_INTERNAL
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void
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gst_vaapi_decoder_set_picture_size(
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GstVaapiDecoder *decoder,
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guint width,
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guint height
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);
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G_GNUC_INTERNAL
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void
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gst_vaapi_decoder_set_framerate(
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GstVaapiDecoder *decoder,
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guint fps_n,
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guint fps_d
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);
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G_GNUC_INTERNAL
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void
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gst_vaapi_decoder_set_pixel_aspect_ratio(
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GstVaapiDecoder *decoder,
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guint par_n,
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guint par_d
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);
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G_GNUC_INTERNAL
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void
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gst_vaapi_decoder_set_interlace_mode(GstVaapiDecoder *decoder,
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GstVideoInterlaceMode mode);
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G_GNUC_INTERNAL
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void
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gst_vaapi_decoder_set_interlaced(GstVaapiDecoder *decoder, gboolean interlaced);
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_decoder_ensure_context(
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GstVaapiDecoder *decoder,
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GstVaapiContextInfo *cip
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);
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G_GNUC_INTERNAL
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void
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gst_vaapi_decoder_push_frame(GstVaapiDecoder *decoder,
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GstVideoCodecFrame *frame);
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G_GNUC_INTERNAL
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GstVaapiDecoderStatus
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gst_vaapi_decoder_check_status(GstVaapiDecoder *decoder);
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G_GNUC_INTERNAL
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GstVaapiDecoderStatus
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gst_vaapi_decoder_decode_codec_data(GstVaapiDecoder *decoder);
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G_END_DECLS
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#endif /* GST_VAAPI_DECODER_PRIV_H */
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