yading@10: /* yading@10: * RV30/40 decoder common data declarations yading@10: * Copyright (c) 2007 Mike Melanson, Konstantin Shishkov yading@10: * yading@10: * This file is part of FFmpeg. yading@10: * yading@10: * FFmpeg is free software; you can redistribute it and/or yading@10: * modify it under the terms of the GNU Lesser General Public yading@10: * License as published by the Free Software Foundation; either yading@10: * version 2.1 of the License, or (at your option) any later version. yading@10: * yading@10: * FFmpeg is distributed in the hope that it will be useful, yading@10: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@10: * Lesser General Public License for more details. yading@10: * yading@10: * You should have received a copy of the GNU Lesser General Public yading@10: * License along with FFmpeg; if not, write to the Free Software yading@10: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@10: */ yading@10: yading@10: /** yading@10: * @file yading@10: * RV30 and RV40 decoder common data declarations yading@10: */ yading@10: yading@10: #ifndef AVCODEC_RV34_H yading@10: #define AVCODEC_RV34_H yading@10: yading@10: #include "avcodec.h" yading@10: #include "mpegvideo.h" yading@10: yading@10: #include "h264pred.h" yading@10: #include "rv34dsp.h" yading@10: yading@10: #define MB_TYPE_SEPARATE_DC 0x01000000 yading@10: #define IS_SEPARATE_DC(a) ((a) & MB_TYPE_SEPARATE_DC) yading@10: yading@10: /** yading@10: * RV30 and RV40 Macroblock types yading@10: */ yading@10: enum RV40BlockTypes{ yading@10: RV34_MB_TYPE_INTRA, ///< Intra macroblock yading@10: RV34_MB_TYPE_INTRA16x16, ///< Intra macroblock with DCs in a separate 4x4 block yading@10: RV34_MB_P_16x16, ///< P-frame macroblock, one motion frame yading@10: RV34_MB_P_8x8, ///< P-frame macroblock, 8x8 motion compensation partitions yading@10: RV34_MB_B_FORWARD, ///< B-frame macroblock, forward prediction yading@10: RV34_MB_B_BACKWARD, ///< B-frame macroblock, backward prediction yading@10: RV34_MB_SKIP, ///< Skipped block yading@10: RV34_MB_B_DIRECT, ///< Bidirectionally predicted B-frame macroblock, no motion vectors yading@10: RV34_MB_P_16x8, ///< P-frame macroblock, 16x8 motion compensation partitions yading@10: RV34_MB_P_8x16, ///< P-frame macroblock, 8x16 motion compensation partitions yading@10: RV34_MB_B_BIDIR, ///< Bidirectionally predicted B-frame macroblock, two motion vectors yading@10: RV34_MB_P_MIX16x16, ///< P-frame macroblock with DCs in a separate 4x4 block, one motion vector yading@10: RV34_MB_TYPES yading@10: }; yading@10: yading@10: /** yading@10: * VLC tables used by the decoder yading@10: * yading@10: * Intra frame VLC sets do not contain some of those tables. yading@10: */ yading@10: typedef struct RV34VLC{ yading@10: VLC cbppattern[2]; ///< VLCs used for pattern of coded block patterns decoding yading@10: VLC cbp[2][4]; ///< VLCs used for coded block patterns decoding yading@10: VLC first_pattern[4]; ///< VLCs used for decoding coefficients in the first subblock yading@10: VLC second_pattern[2]; ///< VLCs used for decoding coefficients in the subblocks 2 and 3 yading@10: VLC third_pattern[2]; ///< VLCs used for decoding coefficients in the last subblock yading@10: VLC coefficient; ///< VLCs used for decoding big coefficients yading@10: }RV34VLC; yading@10: yading@10: /** essential slice information */ yading@10: typedef struct SliceInfo{ yading@10: int type; ///< slice type (intra, inter) yading@10: int quant; ///< quantizer used for this slice yading@10: int vlc_set; ///< VLCs used for this slice yading@10: int start, end; ///< start and end macroblocks of the slice yading@10: int width; ///< coded width yading@10: int height; ///< coded height yading@10: int pts; ///< frame timestamp yading@10: }SliceInfo; yading@10: yading@10: /** decoder context */ yading@10: typedef struct RV34DecContext{ yading@10: MpegEncContext s; yading@10: RV34DSPContext rdsp; yading@10: int8_t *intra_types_hist;///< old block types, used for prediction yading@10: int8_t *intra_types; ///< block types yading@10: int intra_types_stride;///< block types array stride yading@10: const uint8_t *luma_dc_quant_i;///< luma subblock DC quantizer for intraframes yading@10: const uint8_t *luma_dc_quant_p;///< luma subblock DC quantizer for interframes yading@10: yading@10: RV34VLC *cur_vlcs; ///< VLC set used for current frame decoding yading@10: H264PredContext h; ///< functions for 4x4 and 16x16 intra block prediction yading@10: SliceInfo si; ///< current slice information yading@10: yading@10: int *mb_type; ///< internal macroblock types yading@10: int block_type; ///< current block type yading@10: int luma_vlc; ///< which VLC set will be used for decoding of luma blocks yading@10: int chroma_vlc; ///< which VLC set will be used for decoding of chroma blocks yading@10: int is16; ///< current block has additional 16x16 specific features or not yading@10: int dmv[4][2]; ///< differential motion vectors for the current macroblock yading@10: yading@10: int rv30; ///< indicates which RV variasnt is currently decoded yading@10: int rpr; ///< one field size in RV30 slice header yading@10: yading@10: int cur_pts, last_pts, next_pts; yading@10: int scaled_weight; yading@10: int weight1, weight2; ///< B frame distance fractions (0.14) used in motion compensation yading@10: int mv_weight1, mv_weight2; yading@10: yading@10: uint16_t *cbp_luma; ///< CBP values for luma subblocks yading@10: uint8_t *cbp_chroma; ///< CBP values for chroma subblocks yading@10: uint16_t *deblock_coefs; ///< deblock coefficients for each macroblock yading@10: yading@10: /** 8x8 block available flags (for MV prediction) */ yading@10: DECLARE_ALIGNED(8, uint32_t, avail_cache)[3*4]; yading@10: yading@10: /** temporary blocks for RV4 weighted MC */ yading@10: uint8_t *tmp_b_block_y[2]; yading@10: uint8_t *tmp_b_block_uv[4]; yading@10: uint8_t *tmp_b_block_base; yading@10: yading@10: int (*parse_slice_header)(struct RV34DecContext *r, GetBitContext *gb, SliceInfo *si); yading@10: int (*decode_mb_info)(struct RV34DecContext *r); yading@10: int (*decode_intra_types)(struct RV34DecContext *r, GetBitContext *gb, int8_t *dst); yading@10: void (*loop_filter)(struct RV34DecContext *r, int row); yading@10: }RV34DecContext; yading@10: yading@10: /** yading@10: * common decoding functions yading@10: */ yading@10: int ff_rv34_get_start_offset(GetBitContext *gb, int blocks); yading@10: int ff_rv34_decode_init(AVCodecContext *avctx); yading@10: int ff_rv34_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt); yading@10: int ff_rv34_decode_end(AVCodecContext *avctx); yading@10: int ff_rv34_decode_init_thread_copy(AVCodecContext *avctx); yading@10: int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src); yading@10: yading@10: #endif /* AVCODEC_RV34_H */