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libavcodec
utvideo.h
Go to the documentation of this file.
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/*
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* Common Ut Video header
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* Copyright (c) 2011 Konstantin Shishkov
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_UTVIDEO_H
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#define AVCODEC_UTVIDEO_H
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/**
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* @file
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* Common Ut Video header
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*/
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#include "
libavutil/common.h
"
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#include "
avcodec.h
"
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#include "
dsputil.h
"
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enum
{
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PRED_NONE
= 0,
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PRED_LEFT
,
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PRED_GRADIENT
,
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PRED_MEDIAN
,
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};
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enum
{
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COMP_NONE
= 0,
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COMP_HUFF
,
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};
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/*
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* "Original format" markers.
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* Based on values gotten from the official VFW encoder.
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* They are not used during decoding, but they do have
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* an informative role on seeing what was input
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* to the encoder.
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*/
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enum
{
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UTVIDEO_RGB
=
MKTAG
(0x00, 0x00, 0x01, 0x18),
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UTVIDEO_RGBA
=
MKTAG
(0x00, 0x00, 0x02, 0x18),
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UTVIDEO_420
=
MKTAG
(
'Y'
,
'V'
,
'1'
,
'2'
),
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UTVIDEO_422
=
MKTAG
(
'Y'
,
'U'
,
'Y'
,
'2'
),
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};
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/* Mapping of libavcodec prediction modes to Ut Video's */
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extern
const
int
ff_ut_pred_order
[5];
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/* Order of RGB(A) planes in Ut Video */
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extern
const
int
ff_ut_rgb_order
[4];
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typedef
struct
UtvideoContext
{
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AVCodecContext
*
avctx
;
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AVFrame
pic
;
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DSPContext
dsp
;
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uint32_t
frame_info_size
,
flags
,
frame_info
;
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int
planes
;
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int
slices
;
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int
compression
;
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int
interlaced
;
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int
frame_pred
;
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int
slice_stride
;
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uint8_t
*
slice_bits
, *
slice_buffer
[4];
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int
slice_bits_size
;
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}
UtvideoContext
;
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typedef
struct
HuffEntry
{
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uint8_t
sym
;
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uint8_t
len
;
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uint32_t
code
;
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}
HuffEntry
;
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/* Compare huffman tree nodes */
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int
ff_ut_huff_cmp_len
(
const
void
*
a
,
const
void
*
b
);
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#endif
/* AVCODEC_UTVIDEO_H */
Generated on Sat May 25 2013 04:01:11 for FFmpeg by
1.8.2