X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fvc1.h;h=0c4958ca77d7d6f1cc4c1a993b78113451a9b3ce;hb=ea4d46e72945cba37feb7aa154eb970732f513e4;hp=d5f0e054655e058c47b7733f8cdba802e3a8bf0c;hpb=9e553f7acc2f378389a37af214ba5f1a4d99365f;p=ffmpeg diff --git a/libavcodec/vc1.h b/libavcodec/vc1.h index d5f0e054655..0c4958ca77d 100644 --- a/libavcodec/vc1.h +++ b/libavcodec/vc1.h @@ -3,20 +3,20 @@ * Copyright (c) 2006-2007 Konstantin Shishkov * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -24,33 +24,13 @@ #define AVCODEC_VC1_H #include "avcodec.h" +#include "h264chroma.h" #include "mpegvideo.h" #include "intrax8.h" +#include "vc1_common.h" +#include "vc1dsp.h" -/** Markers used in VC-1 AP frame data */ -//@{ -enum VC1Code{ - VC1_CODE_RES0 = 0x00000100, - VC1_CODE_ENDOFSEQ = 0x0000010A, - VC1_CODE_SLICE, - VC1_CODE_FIELD, - VC1_CODE_FRAME, - VC1_CODE_ENTRYPOINT, - VC1_CODE_SEQHDR, -}; -//@} - -#define IS_MARKER(x) (((x) & ~0xFF) == VC1_CODE_RES0) - -/** Available Profiles */ -//@{ -enum Profile { - PROFILE_SIMPLE, - PROFILE_MAIN, - PROFILE_COMPLEX, ///< TODO: WMV9 specific - PROFILE_ADVANCED -}; -//@} +#define AC_VLC_BITS 9 /** Sequence quantizer mode */ //@{ @@ -104,12 +84,25 @@ enum MVModes { }; //@} +/** MBMODE for interlaced frame P-picture */ +//@{ +enum MBModesIntfr { + MV_PMODE_INTFR_1MV, + MV_PMODE_INTFR_2MV_FIELD, + MV_PMODE_INTFR_2MV, + MV_PMODE_INTFR_4MV_FIELD, + MV_PMODE_INTFR_4MV, + MV_PMODE_INTFR_INTRA, +}; +//@} + /** @name MV types for B frames */ //@{ enum BMVTypes { BMV_TYPE_BACKWARD, BMV_TYPE_FORWARD, - BMV_TYPE_INTERPOLATED + BMV_TYPE_INTERPOLATED, + BMV_TYPE_DIRECT }; //@} @@ -119,10 +112,10 @@ enum TransformTypes { TT_8X8, TT_8X4_BOTTOM, TT_8X4_TOP, - TT_8X4, //Both halves + TT_8X4, // both halves TT_4X8_RIGHT, TT_4X8_LEFT, - TT_4X8, //Both halves + TT_4X8, // both halves TT_4X4 }; //@} @@ -147,6 +140,16 @@ enum COTypes { }; //@} +/** + * FCM Frame Coding Mode + * @note some content might be marked interlaced + * but have fcm set to 0 as well (e.g. HD-DVD) + */ +enum FrameCodingMode { + PROGRESSIVE = 0, ///< in the bitstream is reported as 00b + ILACE_FRAME, ///< in the bitstream is reported as 10b + ILACE_FIELD ///< in the bitstream is reported as 11b +}; /** The VC1 Context * @todo Change size wherever another size is more efficient @@ -155,12 +158,15 @@ enum COTypes { typedef struct VC1Context{ MpegEncContext s; IntraX8Context x8; + H264ChromaContext h264chroma; + VC1DSPContext vc1dsp; int bits; /** Simple/Main Profile sequence header */ //@{ - int res_sm; ///< reserved, 2b + int res_sprite; ///< reserved, sprite mode + int res_y411; ///< reserved, old interlaced mode int res_x8; ///< reserved int multires; ///< frame-level RESPIC syntax element present int res_fasttx; ///< reserved, always 1 @@ -208,14 +214,16 @@ typedef struct VC1Context{ /** Frame decoding info for all profiles */ //@{ - uint8_t mv_mode; ///< MV coding monde - uint8_t mv_mode2; ///< Secondary MV coding mode (B frames) - int k_x; ///< Number of bits for MVs (depends on MV range) - int k_y; ///< Number of bits for MVs (depends on MV range) - int range_x, range_y; ///< MV range - uint8_t pq, altpq; ///< Current/alternate frame quantizer scale - const uint8_t* zz_8x4;///< Zigzag scan table for TT_8x4 coding mode - const uint8_t* zz_4x8;///< Zigzag scan table for TT_4x8 coding mode + uint8_t mv_mode; ///< MV coding monde + uint8_t mv_mode2; ///< Secondary MV coding mode (B frames) + int k_x; ///< Number of bits for MVs (depends on MV range) + int k_y; ///< Number of bits for MVs (depends on MV range) + int range_x, range_y; ///< MV range + uint8_t pq, altpq; ///< Current/alternate frame quantizer scale + uint8_t zz_8x8[4][64]; ///< Zigzag table for TT_8x8, permuted for IDCT + int left_blk_sh, top_blk_sh; ///< Either 3 or 0, positions of l/t in blk[] + const uint8_t* zz_8x4; ///< Zigzag scan table for TT_8x4 coding mode + const uint8_t* zz_4x8; ///< Zigzag scan table for TT_4x8 coding mode /** pquant parameters */ //@{ uint8_t dquantfrm; @@ -227,15 +235,15 @@ typedef struct VC1Context{ * @see 8.1.1.10, p(1)10 */ //@{ - int c_ac_table_index; ///< Chroma index from ACFRM element - int y_ac_table_index; ///< Luma index from AC2FRM element + int c_ac_table_index; ///< Chroma index from ACFRM element + int y_ac_table_index; ///< Luma index from AC2FRM element //@} - int ttfrm; ///< Transform type info present at frame level - uint8_t ttmbf; ///< Transform type flag - uint8_t ttblk4x4; ///< Value of ttblk which indicates a 4x4 transform - int codingset; ///< index of current table set from 11.8 to use for luma block decoding - int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding - int pqindex; ///< raw pqindex used in coding set selection + int ttfrm; ///< Transform type info present at frame level + uint8_t ttmbf; ///< Transform type flag + int *ttblk_base, *ttblk; ///< Transform type at the block level + int codingset; ///< index of current table set from 11.8 to use for luma block decoding + int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding + int pqindex; ///< raw pqindex used in coding set selection int a_avail, c_avail; uint8_t *mb_type_base, *mb_type[3]; @@ -255,28 +263,33 @@ typedef struct VC1Context{ * -# 2 -> [-512, 511.f] x [-128, 127.f] * -# 3 -> [-1024, 1023.f] x [-256, 255.f] */ - uint8_t mvrange; - uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use - VLC *cbpcy_vlc; ///< CBPCY VLC table - int tt_index; ///< Index for Transform Type tables - uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV) - uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs - int mv_type_is_raw; ///< mv type mb plane is not coded - int dmb_is_raw; ///< direct mb plane is raw - int skip_is_raw; ///< skip mb plane is not coded - uint8_t luty[256], lutuv[256]; // lookup tables used for intensity compensation - int use_ic; ///< use intensity compensation in B-frames - int rnd; ///< rounding control + uint8_t mvrange; ///< Extended MV range flag + uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use + VLC *cbpcy_vlc; ///< CBPCY VLC table + int tt_index; ///< Index for Transform Type tables (to decode TTMB) + uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV) + uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs + uint8_t* forward_mb_plane; ///< bitplane for "forward" MBs + int mv_type_is_raw; ///< mv type mb plane is not coded + int dmb_is_raw; ///< direct mb plane is raw + int fmb_is_raw; ///< forward mb plane is raw + int skip_is_raw; ///< skip mb plane is not coded + uint8_t last_luty[2][256], last_lutuv[2][256]; ///< lookup tables used for intensity compensation + uint8_t aux_luty[2][256], aux_lutuv[2][256]; ///< lookup tables used for intensity compensation + uint8_t next_luty[2][256], next_lutuv[2][256]; ///< lookup tables used for intensity compensation + uint8_t (*curr_luty)[256] ,(*curr_lutuv)[256]; + int last_use_ic, curr_use_ic, next_use_ic, aux_use_ic; + int rnd; ///< rounding control /** Frame decoding info for S/M profiles only */ //@{ - uint8_t rangeredfrm; ///< out_sample = CLIP((in_sample-128)*2+128) + uint8_t rangeredfrm; ///< out_sample = CLIP((in_sample-128)*2+128) uint8_t interpfrm; //@} /** Frame decoding info for Advanced profile */ //@{ - uint8_t fcm; ///< 0->Progressive, 2->Frame-Interlace, 3->Field-Interlace + enum FrameCodingMode fcm; uint8_t numpanscanwin; uint8_t tfcntr; uint8_t rptfrm, tff, rff; @@ -302,55 +315,71 @@ typedef struct VC1Context{ uint8_t range_mapuv; //@} + /** Frame decoding info for interlaced picture */ + uint8_t dmvrange; ///< Extended differential MV range flag + int fourmvswitch; + int intcomp; + uint8_t lumscale2; ///< for interlaced field P picture + uint8_t lumshift2; + VLC* mbmode_vlc; + VLC* imv_vlc; + VLC* twomvbp_vlc; + VLC* fourmvbp_vlc; + uint8_t twomvbp; + uint8_t fourmvbp; + uint8_t* fieldtx_plane; + int fieldtx_is_raw; + int8_t zzi_8x8[64]; + uint8_t *blk_mv_type_base, *blk_mv_type; ///< 0: frame MV, 1: field MV (interlaced frame) + uint8_t *mv_f_base, *mv_f[2]; ///< 0: MV obtained from same field, 1: opposite field + uint8_t *mv_f_next_base, *mv_f_next[2]; + int field_mode; ///< 1 for interlaced field pictures + int fptype; + int second_field; + int refdist; ///< distance of the current picture from reference + int numref; ///< number of past field pictures used as reference + // 0 corresponds to 1 and 1 corresponds to 2 references + int reffield; ///< if numref = 0 (1 reference) then reffield decides which + // field to use among the two fields from previous frame + int intcompfield; ///< which of the two fields to be intensity compensated + // 0: both fields, 1: bottom field, 2: top field + int cur_field_type; ///< 0: top, 1: bottom + int ref_field_type[2]; ///< forward and backward reference field type (top or bottom) + int blocks_off, mb_off; + int qs_last; ///< if qpel has been used in the previous (tr.) picture + int bmvtype; + int frfd, brfd; ///< reference frame distance (forward or backward) + int first_pic_header_flag; + int pic_header_flag; + + /** Frame decoding info for sprite modes */ + //@{ + int new_sprite; + int two_sprites; + AVFrame *sprite_output_frame; + int output_width, output_height, sprite_width, sprite_height; + uint8_t* sr_rows[2][2]; ///< Sprite resizer line cache + //@} + int p_frame_skipped; int bi_type; int x8_type; + int16_t (*block)[6][64]; + int n_allocated_blks, cur_blk_idx, left_blk_idx, topleft_blk_idx, top_blk_idx; uint32_t *cbp_base, *cbp; - uint8_t bfraction_lut_index;///< Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[]) - uint8_t broken_link; ///< Broken link flag (BROKEN_LINK syntax element) - uint8_t closed_entry; ///< Closed entry point flag (CLOSED_ENTRY syntax element) + uint8_t *is_intra_base, *is_intra; + int16_t (*luma_mv_base)[2], (*luma_mv)[2]; + uint8_t bfraction_lut_index; ///< Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[]) + uint8_t broken_link; ///< Broken link flag (BROKEN_LINK syntax element) + uint8_t closed_entry; ///< Closed entry point flag (CLOSED_ENTRY syntax element) - int parse_only; ///< Context is used within parser + int end_mb_x; ///< Horizontal macroblock limit (used only by mss2) - int warn_interlaced; + int parse_only; ///< Context is used within parser + int resync_marker; ///< could this stream contain resync markers } VC1Context; -/** Find VC-1 marker in buffer - * @return position where next marker starts or end of buffer if no marker found - */ -static av_always_inline const uint8_t* find_next_marker(const uint8_t *src, const uint8_t *end) -{ - uint32_t mrk = 0xFFFFFFFF; - - if(end-src < 4) return end; - while(src < end){ - mrk = (mrk << 8) | *src++; - if(IS_MARKER(mrk)) - return src-4; - } - return end; -} - -static av_always_inline int vc1_unescape_buffer(const uint8_t *src, int size, uint8_t *dst) -{ - int dsize = 0, i; - - if(size < 4){ - for(dsize = 0; dsize < size; dsize++) *dst++ = *src++; - return size; - } - for(i = 0; i < size; i++, src++) { - if(src[0] == 3 && i >= 2 && !src[-1] && !src[-2] && i < size-1 && src[1] < 4) { - dst[dsize++] = src[1]; - src++; - i++; - } else - dst[dsize++] = *src; - } - return dsize; -} - /** * Decode Simple/Main Profiles sequence header * @see Figure 7-8, p16-17 @@ -358,11 +387,29 @@ static av_always_inline int vc1_unescape_buffer(const uint8_t *src, int size, ui * @param gb GetBit context initialized from Codec context extra_data * @return Status */ -int vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb); +int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb); + +int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb); + +int ff_vc1_parse_frame_header (VC1Context *v, GetBitContext *gb); +int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext *gb); +int ff_vc1_init_common(VC1Context *v); + +int ff_vc1_decode_init_alloc_tables(VC1Context *v); +void ff_vc1_init_transposed_scantables(VC1Context *v); +int ff_vc1_decode_end(AVCodecContext *avctx); +void ff_vc1_decode_blocks(VC1Context *v); + +void ff_vc1_loop_filter_iblk(VC1Context *v, int pq); +void ff_vc1_loop_filter_iblk_delayed(VC1Context *v, int pq); +void ff_vc1_smooth_overlap_filter_iblk(VC1Context *v); +void ff_vc1_apply_p_loop_filter(VC1Context *v); -int vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb); +void ff_vc1_mc_1mv(VC1Context *v, int dir); +void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg); +void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir); +void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg); -int vc1_parse_frame_header (VC1Context *v, GetBitContext *gb); -int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext *gb); +void ff_vc1_interp_mc(VC1Context *v); #endif /* AVCODEC_VC1_H */