libavcodec/dnxhdenc.h

   1 /*
   2  * VC3/DNxHD encoder structure definitions and prototypes
   3  * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
   4  *
   5  * VC-3 encoder funded by the British Broadcasting Corporation
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * FFmpeg is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #ifndef AVCODEC_DNXHDENC_H
  25 #define AVCODEC_DNXHDENC_H
  26
  27 #include <stdint.h>
  28 #include "libavcodec/mpegvideo.h"
  29 #include "libavcodec/dnxhddata.h"
  30
  31 typedef struct {
  32     uint16_t mb;
  33     int value;
  34 } RCCMPEntry;
  35
  36 typedef struct {
  37     int ssd;
  38     int bits;
  39 } RCEntry;
  40
  41 typedef struct DNXHDEncContext {
  42     MpegEncContext m; ///< Used for quantization dsp functions
  43
  44     AVFrame frame;
  45     int cid;
  46     const CIDEntry *cid_table;
  47     uint8_t *msip; ///< Macroblock Scan Indexes Payload
  48     uint32_t *slice_size;
  49
  50     struct DNXHDEncContext *thread[MAX_THREADS];
  51
  52     unsigned dct_y_offset;
  53     unsigned dct_uv_offset;
  54     int interlaced;
  55     int cur_field;
  56
  57     DECLARE_ALIGNED_16(DCTELEM, blocks[8][64]);
  58
  59     int      (*qmatrix_c)     [64];
  60     int      (*qmatrix_l)     [64];
  61     uint16_t (*qmatrix_l16)[2][64];
  62     uint16_t (*qmatrix_c16)[2][64];
  63
  64     unsigned frame_bits;
  65     uint8_t *src[3];
  66
  67     uint32_t *vlc_codes;
  68     uint8_t  *vlc_bits;
  69     uint16_t *run_codes;
  70     uint8_t  *run_bits;
  71
  72     /** Rate control */
  73     unsigned slice_bits;
  74     unsigned qscale;
  75     unsigned lambda;
  76
  77     unsigned thread_size;
  78
  79     uint16_t *mb_bits;
  80     uint8_t  *mb_qscale;
  81
  82     RCCMPEntry *mb_cmp;
  83     RCEntry   (*mb_rc)[8160];
  84
  85     void (*get_pixels_8x4_sym)(DCTELEM */*align 16*/, const uint8_t *, int);
  86 } DNXHDEncContext;
  87
  88 void ff_dnxhd_init_mmx(DNXHDEncContext *ctx);
  89
  90 #endif /* AVCODEC_DNXHDENC_H */