Commit f5e6444b authored by Gwenole Beauchesne's avatar Gwenole Beauchesne

decoder: add new "decoder-frame" object.

Introduce a new GstVaapiDecoderFrame that is just a list of decoder units
(GstVaapiDecoderUnit objects) that constitute a frame. This object is just
an extension to GstVideoCodecFrame for VA decoder purposes. It is available
as the user-data member element.

This is a libgstvaapi internal object.
parent 49dbb9af
......@@ -45,6 +45,7 @@ libgstvaapi_source_c = \
gstvaapicontext.c \
gstvaapidecoder.c \
gstvaapidecoder_dpb.c \
gstvaapidecoder_frame.c \
gstvaapidecoder_h264.c \
gstvaapidecoder_mpeg2.c \
gstvaapidecoder_mpeg4.c \
......@@ -104,6 +105,7 @@ libgstvaapi_source_priv_h = \
gstvaapicompat.h \
gstvaapidebug.h \
gstvaapidecoder_dpb.h \
gstvaapidecoder_frame.h \
gstvaapidecoder_objects.h \
gstvaapidecoder_priv.h \
gstvaapidecoder_unit.h \
......
/*
* gstvaapidecoder_frame.c - 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
*/
/**
* SECTION:gstvaapidecoder_frame
* @short_description: VA decoder frame
*/
#include "sysdeps.h"
#include "gstvaapidecoder_frame.h"
static inline const GstVaapiMiniObjectClass *
gst_vaapi_decoder_frame_class(void)
{
static const GstVaapiMiniObjectClass GstVaapiDecoderFrameClass = {
sizeof(GstVaapiDecoderFrame),
(GDestroyNotify)gst_vaapi_decoder_frame_free
};
return &GstVaapiDecoderFrameClass;
}
/**
* gst_vaapi_decoder_frame_new:
*
* Creates a new #GstVaapiDecoderFrame object.
*
* Returns: The newly allocated #GstVaapiDecoderFrame
*/
GstVaapiDecoderFrame *
gst_vaapi_decoder_frame_new(void)
{
GstVaapiDecoderFrame *frame;
frame = (GstVaapiDecoderFrame *)
gst_vaapi_mini_object_new(gst_vaapi_decoder_frame_class());
if (!frame)
return NULL;
frame->output_offset = 0;
frame->units = NULL;
frame->prev_slice = NULL;
return frame;
}
/**
* gst_vaapi_decoder_frame_free:
* @frame: a #GstVaapiDecoderFrame
*
* Deallocates any internal resources bound to the supplied decoder
* @frame.
*
* @note This is an internal function used to implement lightweight
* sub-classes.
*/
void
gst_vaapi_decoder_frame_free(GstVaapiDecoderFrame *frame)
{
if (frame->units) {
g_slist_free_full(frame->units,
(GDestroyNotify)gst_vaapi_mini_object_unref);
frame->units = NULL;
}
}
/*
* 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
* @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;
GSList *units;
GstVaapiDecoderUnit *prev_slice;
};
G_GNUC_INTERNAL
GstVaapiDecoderFrame *
gst_vaapi_decoder_frame_new(void);
G_GNUC_INTERNAL
void
gst_vaapi_decoder_frame_free(GstVaapiDecoderFrame *frame);
#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 */
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