diff options
Diffstat (limited to 'include/gst/codecparsers/gstvp8rangedecoder.h')
-rw-r--r-- | include/gst/codecparsers/gstvp8rangedecoder.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/include/gst/codecparsers/gstvp8rangedecoder.h b/include/gst/codecparsers/gstvp8rangedecoder.h new file mode 100644 index 0000000000..510cff26d0 --- /dev/null +++ b/include/gst/codecparsers/gstvp8rangedecoder.h @@ -0,0 +1,80 @@ +/* + * 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> +#include <gst/codecparsers/codecparsers-prelude.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; +}; + +GST_CODEC_PARSERS_API +gboolean gst_vp8_range_decoder_init (GstVp8RangeDecoder * rd, + const guchar * buf, + guint buf_size); + +GST_CODEC_PARSERS_API +gint gst_vp8_range_decoder_read (GstVp8RangeDecoder * rd, guint8 prob); + +GST_CODEC_PARSERS_API +gint gst_vp8_range_decoder_read_literal (GstVp8RangeDecoder * rd, gint bits); + +GST_CODEC_PARSERS_API +guint gst_vp8_range_decoder_get_pos (GstVp8RangeDecoder * rd); + +GST_CODEC_PARSERS_API +void gst_vp8_range_decoder_get_state (GstVp8RangeDecoder * rd, + GstVp8RangeDecoderState * state); + +#endif /* GST_VP8_RANGE_DECODER_H */ |