gstreamer/gst-libs/gst/vaapi/gstvaapidecoder_frame.h
Gwenole Beauchesne a486d1af66 decoder: optimize pre-allocation of decoder units.
Optimize pre-allocation of decoder units, thus avoiding un-necessary
memory reallocations. The heuristic used is that we could have around
one slice unit per macroblock line.
2013-01-07 14:11:39 +01:00

102 lines
3.4 KiB
C

/*
* gstvaapidecoder_frame.h - VA decoder frame
*
* Copyright (C) 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef GST_VAAPI_DECODER_FRAME_H
#define GST_VAAPI_DECODER_FRAME_H
#include <gst/vaapi/gstvaapiminiobject.h>
#include <gst/vaapi/gstvaapidecoder_unit.h>
G_BEGIN_DECLS
typedef struct _GstVaapiDecoderFrame GstVaapiDecoderFrame;
#define GST_VAAPI_DECODER_FRAME(frame) \
((GstVaapiDecoderFrame *)(frame))
#define GST_VAAPI_IS_DECODER_FRAME(frame) \
(GST_VAAPI_DECODER_FRAME(frame) != NULL)
/**
* GstVaapiDecoderFrameFlags:
*
* Flags for #GstVaapiDecoderFrame.
*/
typedef enum {
GST_VAAPI_DECODER_FRAME_FLAG_LAST = (1 << 0)
} GstVaapiDecoderFrameFlags;
#define GST_VAAPI_DECODER_FRAME_FLAGS GST_VAAPI_MINI_OBJECT_FLAGS
#define GST_VAAPI_DECODER_FRAME_FLAG_IS_SET GST_VAAPI_MINI_OBJECT_FLAG_IS_SET
#define GST_VAAPI_DECODER_FRAME_FLAG_SET GST_VAAPI_MINI_OBJECT_FLAG_SET
#define GST_VAAPI_DECODER_FRAME_FLAG_UNSET GST_VAAPI_MINI_OBJECT_FLAG_UNSET
/**
* GstVaapiDecoderFrame:
* @output_offset: current offset to the reconstructed #GstBuffer for
* this #GstVideoCodecFrame. This is used to initialize the decoder
* unit offset
* @units: list of #GstVaapiDecoderUnit objects (slice data)
* @pre_units: list of units to decode before GstVaapiDecoder:start_frame()
* @post_units: list of units to decode after GstVaapiDecoder:end_frame()
* @prev_slice: previous #GstVaapiDecoderUnit that was a slice, or NULL
* if no slice data unit was received yet
*
* An extension to #GstVideoCodecFrame with #GstVaapiDecoder specific
* information. Decoder frames are usually attached to codec frames as
* the user_data anchor point.
*/
struct _GstVaapiDecoderFrame {
/*< private >*/
GstVaapiMiniObject parent_instance;
guint output_offset;
GArray *units;
GArray *pre_units;
GArray *post_units;
};
G_GNUC_INTERNAL
GstVaapiDecoderFrame *
gst_vaapi_decoder_frame_new(guint width, guint height);
G_GNUC_INTERNAL
void
gst_vaapi_decoder_frame_free(GstVaapiDecoderFrame *frame);
G_GNUC_INTERNAL
void
gst_vaapi_decoder_frame_append_unit(GstVaapiDecoderFrame *frame,
GstVaapiDecoderUnit *unit);
#define gst_vaapi_decoder_frame_ref(frame) \
gst_vaapi_mini_object_ref(GST_VAAPI_MINI_OBJECT(frame))
#define gst_vaapi_decoder_frame_unref(frame) \
gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(frame))
#define gst_vaapi_decoder_frame_replace(old_frame_p, new_frame) \
gst_vaapi_mini_object_replace((GstVaapiMiniObject **)(old_frame_p), \
(GstVaapiMiniObject *)(new_frame))
G_END_DECLS
#endif /* GST_VAAPI_DECODER_FRAME_H */