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  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.  
  29. #include "mpegvideo.h"
  30. #include "dnxhddata.h"
  31.  
  32. typedef struct RCCMPEntry {
  33.     uint16_t mb;
  34.     int value;
  35. } RCCMPEntry;
  36.  
  37. typedef struct RCEntry {
  38.     int ssd;
  39.     int bits;
  40. } RCEntry;
  41.  
  42. typedef struct DNXHDEncContext {
  43.     AVClass *class;
  44.     BlockDSPContext bdsp;
  45.     MpegEncContext m; ///< Used for quantization dsp functions
  46.  
  47.     int cid;
  48.     const CIDEntry *cid_table;
  49.     uint8_t *msip; ///< Macroblock Scan Indexes Payload
  50.     uint32_t *slice_size;
  51.     uint32_t *slice_offs;
  52.  
  53.     struct DNXHDEncContext *thread[MAX_THREADS];
  54.  
  55.     // Because our samples are either 8 or 16 bits for 8-bit and 10-bit
  56.     // encoding respectively, these refer either to bytes or to two-byte words.
  57.     unsigned dct_y_offset;
  58.     unsigned dct_uv_offset;
  59.     unsigned block_width_l2;
  60.  
  61.     int interlaced;
  62.     int cur_field;
  63.  
  64.     int nitris_compat;
  65.     unsigned min_padding;
  66.     int intra_quant_bias;
  67.  
  68.     DECLARE_ALIGNED(16, int16_t, blocks)[8][64];
  69.  
  70.     int      (*qmatrix_c)     [64];
  71.     int      (*qmatrix_l)     [64];
  72.     uint16_t (*qmatrix_l16)[2][64];
  73.     uint16_t (*qmatrix_c16)[2][64];
  74.  
  75.     unsigned frame_bits;
  76.     uint8_t *src[3];
  77.  
  78.     uint32_t *vlc_codes;
  79.     uint8_t  *vlc_bits;
  80.     uint16_t *run_codes;
  81.     uint8_t  *run_bits;
  82.  
  83.     /** Rate control */
  84.     unsigned slice_bits;
  85.     unsigned qscale;
  86.     unsigned lambda;
  87.  
  88.     uint16_t *mb_bits;
  89.     uint8_t  *mb_qscale;
  90.  
  91.     RCCMPEntry *mb_cmp;
  92.     RCEntry   (*mb_rc)[8160];
  93.  
  94.     void (*get_pixels_8x4_sym)(int16_t * /* align 16 */,
  95.                                const uint8_t *, ptrdiff_t);
  96. } DNXHDEncContext;
  97.  
  98. void ff_dnxhdenc_init_x86(DNXHDEncContext *ctx);
  99.  
  100. #endif /* AVCODEC_DNXHDENC_H */
  101.