mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-23 00:36:51 +00:00
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
|
/*
|
||
|
|
* gstvp8rangedecoder.h - VP8 range decoder interface
|
||
|
|
*
|
||
|
|
* Copyright (C) 2014 Intel Corporation
|
||
|
|
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Library General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2 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
|
||
|
|
* Library General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Library General Public
|
||
|
|
* License along with this library; if not, write to the
|
||
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||
|
|
* Boston, MA 02110-1301, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef GST_VP8_RANGE_DECODER_H
|
||
|
|
#define GST_VP8_RANGE_DECODER_H
|
||
|
|
|
||
|
|
#include <glib.h>
|
||
|
|
#include <gst/gstconfig.h>
|
||
|
|
|
||
|
|
typedef struct _GstVp8RangeDecoder GstVp8RangeDecoder;
|
||
|
|
typedef struct _GstVp8RangeDecoderState GstVp8RangeDecoderState;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* GstVp8RangeDecoder:
|
||
|
|
* @buf: the original bitstream buffer start
|
||
|
|
* @buf_size: the original bitstream buffer size
|
||
|
|
*
|
||
|
|
* Range decoder.
|
||
|
|
*/
|
||
|
|
struct _GstVp8RangeDecoder {
|
||
|
|
const guchar *buf;
|
||
|
|
guint buf_size;
|
||
|
|
|
||
|
|
/*< private >*/
|
||
|
|
gpointer _gst_reserved[GST_PADDING_LARGE];
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* GstVp8RangeDecoderState:
|
||
|
|
* @range: current "Range" value
|
||
|
|
* @value: current "Value" value
|
||
|
|
* @count: number of bits left in "Value" for decoding
|
||
|
|
*
|
||
|
|
* Range decoder state.
|
||
|
|
*/
|
||
|
|
struct _GstVp8RangeDecoderState {
|
||
|
|
guint8 range;
|
||
|
|
guint8 value;
|
||
|
|
guint8 count;
|
||
|
|
};
|
||
|
|
|
||
|
|
gboolean
|
||
|
|
gst_vp8_range_decoder_init (GstVp8RangeDecoder * rd, const guchar * buf,
|
||
|
|
guint buf_size);
|
||
|
|
|
||
|
|
gint
|
||
|
|
gst_vp8_range_decoder_read (GstVp8RangeDecoder * rd, guint8 prob);
|
||
|
|
|
||
|
|
gint
|
||
|
|
gst_vp8_range_decoder_read_literal (GstVp8RangeDecoder * rd, gint bits);
|
||
|
|
|
||
|
|
guint
|
||
|
|
gst_vp8_range_decoder_get_pos (GstVp8RangeDecoder * rd);
|
||
|
|
|
||
|
|
void
|
||
|
|
gst_vp8_range_decoder_get_state (GstVp8RangeDecoder * rd,
|
||
|
|
GstVp8RangeDecoderState * state);
|
||
|
|
|
||
|
|
#endif /* GST_VP8_RANGE_DECODER_H */
|