0,0 → 1,91 |
/* |
* Common Ut Video header |
* Copyright (c) 2011 Konstantin Shishkov |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg 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. |
* |
* FFmpeg 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 FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
#ifndef AVCODEC_UTVIDEO_H |
#define AVCODEC_UTVIDEO_H |
|
/** |
* @file |
* Common Ut Video header |
*/ |
|
#include "libavutil/common.h" |
#include "avcodec.h" |
#include "dsputil.h" |
|
enum { |
PRED_NONE = 0, |
PRED_LEFT, |
PRED_GRADIENT, |
PRED_MEDIAN, |
}; |
|
enum { |
COMP_NONE = 0, |
COMP_HUFF, |
}; |
|
/* |
* "Original format" markers. |
* Based on values gotten from the official VFW encoder. |
* They are not used during decoding, but they do have |
* an informative role on seeing what was input |
* to the encoder. |
*/ |
enum { |
UTVIDEO_RGB = MKTAG(0x00, 0x00, 0x01, 0x18), |
UTVIDEO_RGBA = MKTAG(0x00, 0x00, 0x02, 0x18), |
UTVIDEO_420 = MKTAG('Y', 'V', '1', '2'), |
UTVIDEO_422 = MKTAG('Y', 'U', 'Y', '2'), |
}; |
|
/* Mapping of libavcodec prediction modes to Ut Video's */ |
extern const int ff_ut_pred_order[5]; |
|
/* Order of RGB(A) planes in Ut Video */ |
extern const int ff_ut_rgb_order[4]; |
|
typedef struct UtvideoContext { |
AVCodecContext *avctx; |
DSPContext dsp; |
|
uint32_t frame_info_size, flags, frame_info; |
int planes; |
int slices; |
int compression; |
int interlaced; |
int frame_pred; |
|
int slice_stride; |
uint8_t *slice_bits, *slice_buffer[4]; |
int slice_bits_size; |
} UtvideoContext; |
|
typedef struct HuffEntry { |
uint8_t sym; |
uint8_t len; |
uint32_t code; |
} HuffEntry; |
|
/* Compare huffman tree nodes */ |
int ff_ut_huff_cmp_len(const void *a, const void *b); |
|
#endif /* AVCODEC_UTVIDEO_H */ |