--- decoder.c 2002/07/09 01:09:33 1.25 +++ decoder.c 2004/04/19 12:42:01 1.56 @@ -1,104 +1,91 @@ -/************************************************************************** +/***************************************************************************** * * XVID MPEG-4 VIDEO CODEC - * - Decoder main module - + * - Decoder Module - * - * This program is an implementation of a part of one or more MPEG-4 - * Video tools as specified in ISO/IEC 14496-2 standard. Those intending - * to use this software module in hardware or software products are - * advised that its use may infringe existing patents or copyrights, and - * any such use would be at such party's own risk. The original - * developer of this software module and his/her company, and subsequent - * editors and their companies, will have no liability for use of this - * software or modifications or derivatives thereof. + * Copyright(C) 2002 MinChen + * 2002-2004 Peter Ross * - * This program is free software; you can redistribute it and/or modify + * This program is free software ; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation ; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of + * but WITHOUT ANY WARRANTY ; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program ; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - *************************************************************************/ - -/************************************************************************** - * - * History: - * - * 22.06.2002 added primative N_VOP support - * #define BFRAMES_DEC now enables Minchenm's bframe decoder - * 08.05.2002 add low_delay support for B_VOP decode - * MinChen - * 05.05.2002 fix some B-frame decode problem - * 02.05.2002 add B-frame decode support(have some problem); - * MinChen - * 22.04.2002 add some B-frame decode support; chenm001 - * 29.03.2002 interlacing fix - compensated block wasn't being used when - * reconstructing blocks, thus artifacts - * interlacing speedup - used transfers to re-interlace - * interlaced decoding should be as fast as progressive now - * 26.03.2002 interlacing support - moved transfers outside decode loop - * 26.12.2001 decoder_mbinter: dequant/idct moved within if(coded) block - * 22.12.2001 lock based interpolation - * 01.12.2001 inital version; (c)2001 peter ross - * - * $Id: decoder.c,v 1.25 2002/07/09 01:09:33 chenm001 Exp $ + * $Id: decoder.c,v 1.56 2004/04/19 12:42:01 syskin Exp $ * - *************************************************************************/ + ****************************************************************************/ +#include #include #include +#ifdef BFRAMES_DEC_DEBUG + #define BFRAMES_DEC +#endif + #include "xvid.h" #include "portab.h" +#include "global.h" #include "decoder.h" #include "bitstream/bitstream.h" #include "bitstream/mbcoding.h" -#include "quant/quant_h263.h" -#include "quant/quant_mpeg4.h" +#include "quant/quant.h" +#include "quant/quant_matrix.h" #include "dct/idct.h" #include "dct/fdct.h" #include "utils/mem_transfer.h" #include "image/interpolate8x8.h" +#include "image/reduced.h" +#include "image/font.h" #include "bitstream/mbcoding.h" #include "prediction/mbprediction.h" #include "utils/timer.h" #include "utils/emms.h" +#include "motion/motion.h" +#include "motion/gmc.h" #include "image/image.h" #include "image/colorspace.h" +#include "image/postprocessing.h" #include "utils/mem_align.h" -int -decoder_create(XVID_DEC_PARAM * param) +static int +decoder_resize(DECODER * dec) { - DECODER *dec; + /* free existing */ + image_destroy(&dec->cur, dec->edged_width, dec->edged_height); + image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); + image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); + image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); + image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); - dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); - if (dec == NULL) { - return XVID_ERR_MEMORY; - } - param->handle = dec; + image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); - dec->width = param->width; - dec->height = param->height; + if (dec->last_mbs) + xvid_free(dec->last_mbs); + if (dec->mbs) + xvid_free(dec->mbs); + if (dec->qscale) + xvid_free(dec->qscale); + /* realloc */ dec->mb_width = (dec->width + 15) / 16; dec->mb_height = (dec->height + 15) / 16; dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; - dec->low_delay = 0; if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { xvid_free(dec); @@ -110,18 +97,37 @@ xvid_free(dec); return XVID_ERR_MEMORY; } - // add by chenm001 - // for support B-frame to reference last 2 frame + + /* Support B-frame to reference last 2 frame */ if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { image_destroy(&dec->cur, dec->edged_width, dec->edged_height); image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); xvid_free(dec); return XVID_ERR_MEMORY; } - if (image_create(&dec->refn[2], dec->edged_width, dec->edged_height)) { + if (image_create(&dec->tmp, dec->edged_width, dec->edged_height)) { + image_destroy(&dec->cur, dec->edged_width, dec->edged_height); + image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); + image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); + xvid_free(dec); + return XVID_ERR_MEMORY; + } + + if (image_create(&dec->qtmp, dec->edged_width, dec->edged_height)) { + image_destroy(&dec->cur, dec->edged_width, dec->edged_height); + image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); + image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); + image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); + xvid_free(dec); + return XVID_ERR_MEMORY; + } + + if (image_create(&dec->gmc, dec->edged_width, dec->edged_height)) { + image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); image_destroy(&dec->cur, dec->edged_width, dec->edged_height); image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); + image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); xvid_free(dec); return XVID_ERR_MEMORY; } @@ -133,15 +139,14 @@ image_destroy(&dec->cur, dec->edged_width, dec->edged_height); image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); + image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); + image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); xvid_free(dec); return XVID_ERR_MEMORY; } - memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); - // add by chenm001 - // for skip MB flag + /* For skip MB flag */ dec->last_mbs = xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, CACHE_LINE); @@ -150,167 +155,112 @@ image_destroy(&dec->cur, dec->edged_width, dec->edged_height); image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); + image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); + image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); xvid_free(dec); return XVID_ERR_MEMORY; } memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); - init_timer(); - - // add by chenm001 - // for support B-frame to save reference frame's time - dec->frames = -1; - dec->time = dec->time_base = dec->last_time_base = 0; + /* nothing happens if that fails */ + dec->qscale = + xvid_malloc(sizeof(int) * dec->mb_width * dec->mb_height, CACHE_LINE); + + if (dec->qscale) + memset(dec->qscale, 0, sizeof(int) * dec->mb_width * dec->mb_height); - return XVID_ERR_OK; + return 0; } - -/* **************************************************************** -NIC 28.06.2002 - riscritta la 'decoder_create' per cambiarne l'interfaccia e poterla - usare nella dll caricata dall'IM1 player - IM1_decoder_create(XVID_DEC_PARAM * param,XVID_DEC_FRAME * frame) -**************************************************************** */ -//XVID_DEC_FRAME * frame - int -IM1_decoder_create(XVID_DEC_PARAM * param,XVID_DEC_FRAME * frame) +decoder_create(xvid_dec_create_t * create) { DECODER *dec; - Bitstream bs; - uint32_t rounding; - uint32_t quant; - uint32_t fcode_forward; - uint32_t fcode_backward; - uint32_t intra_dc_threshold; + + if (XVID_VERSION_MAJOR(create->version) != 1) /* v1.x.x */ + return XVID_ERR_VERSION; dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); if (dec == NULL) { return XVID_ERR_MEMORY; } - param->handle = dec; + memset(dec, 0, sizeof(DECODER)); - BitstreamInit(&bs, frame->bitstream, frame->length);//NIC - - //NIC - BitstreamReadHeaders(&bs, dec, &rounding, &quant, &fcode_forward, - &fcode_backward, &intra_dc_threshold); - - - param->width = dec->width; //NIC added - param->height = dec->height; //NIC added - //dec->width = param->width; //NIC commentate - //dec->height = param->height; //NIC commentate - - dec->mb_width = (dec->width + 15) / 16; - dec->mb_height = (dec->height + 15) / 16; - - dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; - dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; - dec->low_delay = 0; - - if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { + dec->mpeg_quant_matrices = xvid_malloc(sizeof(uint16_t) * 64 * 8, CACHE_LINE); + if (dec->mpeg_quant_matrices == NULL) { xvid_free(dec); return XVID_ERR_MEMORY; } - if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) { - image_destroy(&dec->cur, dec->edged_width, dec->edged_height); - xvid_free(dec); - return XVID_ERR_MEMORY; - } - // add by chenm001 - // for support B-frame to reference last 2 frame - if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { - image_destroy(&dec->cur, dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); - xvid_free(dec); - return XVID_ERR_MEMORY; - } - if (image_create(&dec->refn[2], dec->edged_width, dec->edged_height)) { - image_destroy(&dec->cur, dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); - xvid_free(dec); - return XVID_ERR_MEMORY; - } + create->handle = dec; - dec->mbs = - xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, - CACHE_LINE); - if (dec->mbs == NULL) { - image_destroy(&dec->cur, dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); - xvid_free(dec); - return XVID_ERR_MEMORY; - } + dec->width = create->width; + dec->height = create->height; - memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); - - // add by chenm001 - // for skip MB flag - dec->last_mbs = - xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, - CACHE_LINE); - if (dec->last_mbs == NULL) { - xvid_free(dec->mbs); - image_destroy(&dec->cur, dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); - xvid_free(dec); - return XVID_ERR_MEMORY; - } - - memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); + image_null(&dec->cur); + image_null(&dec->refn[0]); + image_null(&dec->refn[1]); + image_null(&dec->tmp); + image_null(&dec->qtmp); + + /* image based GMC */ + image_null(&dec->gmc); + + dec->mbs = NULL; + dec->last_mbs = NULL; + dec->qscale = NULL; init_timer(); + init_postproc(&dec->postproc); + init_mpeg_matrix(dec->mpeg_quant_matrices); - // add by chenm001 - // for support B-frame to save reference frame's time - dec->frames = -1; + /* For B-frame support (used to save reference frame's time */ + dec->frames = 0; dec->time = dec->time_base = dec->last_time_base = 0; + dec->low_delay = 0; + dec->packed_mode = 0; + dec->time_inc_resolution = 1; /* until VOL header says otherwise */ + + dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); - return XVID_ERR_OK; + if (dec->fixed_dimensions) + return decoder_resize(dec); + else + return 0; } -/* **************************************************************** - END NIC -**************************************************************** */ + int decoder_destroy(DECODER * dec) { xvid_free(dec->last_mbs); xvid_free(dec->mbs); + xvid_free(dec->qscale); + + /* image based GMC */ + image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); + image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); - image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); + image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); + image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); image_destroy(&dec->cur, dec->edged_width, dec->edged_height); + xvid_free(dec->mpeg_quant_matrices); xvid_free(dec); write_timer(); - return XVID_ERR_OK; + return 0; } - - static const int32_t dquant_table[4] = { -1, -2, 1, 2 }; - - - -// decode an intra macroblock - -void +/* decode an intra macroblock */ +static void decoder_mbintra(DECODER * dec, MACROBLOCK * pMB, const uint32_t x_pos, @@ -319,7 +269,9 @@ const uint32_t cbp, Bitstream * bs, const uint32_t quant, - const uint32_t intra_dc_threshold) + const uint32_t intra_dc_threshold, + const unsigned int bound, + const int reduced_resolution) { DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); @@ -332,11 +284,17 @@ uint32_t iQuant = pMB->quant; uint8_t *pY_Cur, *pU_Cur, *pV_Cur; - pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); - pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); - pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); + if (reduced_resolution) { + pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); + pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); + pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); + }else{ + pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); + pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); + pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); + } - memset(block, 0, 6 * 64 * sizeof(int16_t)); // clear + memset(block, 0, 6 * 64 * sizeof(int16_t)); /* clear */ for (i = 0; i < 6; i++) { uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); @@ -345,7 +303,7 @@ start_timer(); predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], - iQuant, iDcScaler, predictors); + iQuant, iDcScaler, predictors, bound); if (!acpred_flag) { pMB->acpred_directions[i] = 0; } @@ -359,20 +317,24 @@ dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; if (dc_size > 8) { - BitstreamSkip(bs, 1); // marker + BitstreamSkip(bs, 1); /* marker */ } block[i * 64 + 0] = dc_dif; start_coeff = 1; + + DPRINTF(XVID_DEBUG_COEFF,"block[0] %i\n", dc_dif); } else { start_coeff = 0; } start_timer(); - if (cbp & (1 << (5 - i))) // coded + if (cbp & (1 << (5 - i))) /* coded */ { - get_intra_block(bs, &block[i * 64], pMB->acpred_directions[i], - start_coeff); + int direction = dec->alternate_vertical_scan ? + 2 : pMB->acpred_directions[i]; + + get_intra_block(bs, &block[i * 64], direction, start_coeff); } stop_coding_timer(); @@ -382,15 +344,16 @@ start_timer(); if (dec->quant_type == 0) { - dequant_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); + dequant_h263_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler, dec->mpeg_quant_matrices); } else { - dequant4_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); + dequant_mpeg_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler, dec->mpeg_quant_matrices); } stop_iquant_timer(); start_timer(); idct(&data[i * 64]); stop_idct_timer(); + } if (dec->interlacing && pMB->field_dct) { @@ -399,169 +362,361 @@ } start_timer(); - transfer_16to8copy(pY_Cur, &data[0 * 64], stride); - transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); - transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); - transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); - transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); - transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); + + if (reduced_resolution) + { + next_block*=2; + copy_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); + copy_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); + copy_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); + copy_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); + copy_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); + copy_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); + }else{ + transfer_16to8copy(pY_Cur, &data[0 * 64], stride); + transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); + transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); + transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); + transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); + transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); + } stop_transfer_timer(); } +static void +decoder_mb_decode(DECODER * dec, + const uint32_t cbp, + Bitstream * bs, + uint8_t * pY_Cur, + uint8_t * pU_Cur, + uint8_t * pV_Cur, + const int reduced_resolution, + const MACROBLOCK * pMB) +{ + DECLARE_ALIGNED_MATRIX(block, 1, 64, int16_t, CACHE_LINE); + DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); + int stride = dec->edged_width; + int next_block = stride * (reduced_resolution ? 16 : 8); + const int stride2 = stride/2; + int i; + const uint32_t iQuant = pMB->quant; + const int direction = dec->alternate_vertical_scan ? 2 : 0; + const quant_interFuncPtr dequant = dec->quant_type == 0 ? dequant_h263_inter : dequant_mpeg_inter; + for (i = 0; i < 6; i++) { + if (cbp & (1 << (5 - i))) { /* coded */ -#define SIGN(X) (((X)>0)?1:-1) -#define ABS(X) (((X)>0)?(X):-(X)) -static const uint32_t roundtab[16] = - { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; + memset(block, 0, 64 * sizeof(int16_t)); /* clear */ + start_timer(); + get_inter_block(bs, block, direction); + stop_coding_timer(); -// decode an inter macroblock + start_timer(); + dequant(&data[i * 64], block, iQuant, dec->mpeg_quant_matrices); + stop_iquant_timer(); -void + start_timer(); + idct(&data[i * 64]); + stop_idct_timer(); + } + } + + if (dec->interlacing && pMB->field_dct) { + next_block = stride; + stride *= 2; + } + + start_timer(); + if (reduced_resolution) { + if (cbp & 32) + add_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); + if (cbp & 16) + add_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); + if (cbp & 8) + add_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); + if (cbp & 4) + add_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); + if (cbp & 2) + add_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); + if (cbp & 1) + add_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); + } else { + if (cbp & 32) + transfer_16to8add(pY_Cur, &data[0 * 64], stride); + if (cbp & 16) + transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); + if (cbp & 8) + transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); + if (cbp & 4) + transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); + if (cbp & 2) + transfer_16to8add(pU_Cur, &data[4 * 64], stride2); + if (cbp & 1) + transfer_16to8add(pV_Cur, &data[5 * 64], stride2); + } + stop_transfer_timer(); +} + +/* decode an inter macroblock */ +static void decoder_mbinter(DECODER * dec, const MACROBLOCK * pMB, const uint32_t x_pos, const uint32_t y_pos, - const uint32_t acpred_flag, const uint32_t cbp, Bitstream * bs, - const uint32_t quant, - const uint32_t rounding) + const uint32_t rounding, + const int reduced_resolution, + const int ref) { - - DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); - DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); - uint32_t stride = dec->edged_width; uint32_t stride2 = stride / 2; - uint32_t next_block = stride * 8; uint32_t i; - uint32_t iQuant = pMB->quant; - uint8_t *pY_Cur, *pU_Cur, *pV_Cur; - int uv_dx, uv_dy; - pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); - pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); - pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); + uint8_t *pY_Cur, *pU_Cur, *pV_Cur; - if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { - uv_dx = pMB->mvs[0].x; - uv_dy = pMB->mvs[0].y; + int uv_dx, uv_dy; + VECTOR mv[4]; /* local copy of mvs */ - uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; - uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; + if (reduced_resolution) { + pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); + pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); + pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); + for (i = 0; i < 4; i++) { + mv[i].x = RRV_MV_SCALEUP(pMB->mvs[i].x); + mv[i].y = RRV_MV_SCALEUP(pMB->mvs[i].y); + } } else { - int sum; + pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); + pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); + pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); + for (i = 0; i < 4; i++) + mv[i] = pMB->mvs[i]; + } - sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; - uv_dx = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); - - sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; - uv_dy = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); + for (i = 0; i < 4; i++) { + /* clip to valid range */ + int border = (int)(dec->mb_width - x_pos) << (5 + dec->quarterpel); + if (mv[i].x > border) { + DPRINTF(XVID_DEBUG_MV, "mv.x > max -- %d > %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); + mv[i].x = border; + } else { + border = (-(int)x_pos-1) << (5 + dec->quarterpel); + if (mv[i].x < border) { + DPRINTF(XVID_DEBUG_MV, "mv.x < min -- %d < %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); + mv[i].x = border; + } + } + + border = (int)(dec->mb_height - y_pos) << (5 + dec->quarterpel); + if (mv[i].y > border) { + DPRINTF(XVID_DEBUG_MV, "mv.y > max -- %d > %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); + mv[i].y = border; + } else { + border = (-(int)y_pos-1) << (5 + dec->quarterpel); + if (mv[i].y < border) { + DPRINTF(XVID_DEBUG_MV, "mv.y < min -- %d < %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); + mv[i].y = border; + } + } } start_timer(); - interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, - pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); - interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, - 16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, - rounding); - interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, - 16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, - rounding); - interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, - 16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, - rounding); - interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, - uv_dx, uv_dy, stride2, rounding); - interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, - uv_dx, uv_dy, stride2, rounding); - stop_comp_timer(); - for (i = 0; i < 6; i++) { - if (cbp & (1 << (5 - i))) // coded - { - memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear + if (pMB->mode != MODE_INTER4V) { /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ - start_timer(); - get_inter_block(bs, &block[i * 64]); - stop_coding_timer(); + uv_dx = mv[0].x; + uv_dy = mv[0].y; + if (dec->quarterpel) { + uv_dx /= 2; + uv_dy /= 2; + } + uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; + uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; - start_timer(); - if (dec->quant_type == 0) { - dequant_inter(&data[i * 64], &block[i * 64], iQuant); - } else { - dequant4_inter(&data[i * 64], &block[i * 64], iQuant); - } - stop_iquant_timer(); + if (reduced_resolution) + interpolate32x32_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, + mv[0].x, mv[0].y, stride, rounding); + else if (dec->quarterpel) + interpolate16x16_quarterpel(dec->cur.y, dec->refn[ref].y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos, + mv[0].x, mv[0].y, stride, rounding); + else + interpolate16x16_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos, + mv[0].x, mv[0].y, stride, rounding); + + } else { /* MODE_INTER4V */ + + if(dec->quarterpel) { + uv_dx = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); + uv_dy = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); + } else { + uv_dx = mv[0].x + mv[1].x + mv[2].x + mv[3].x; + uv_dy = mv[0].y + mv[1].y + mv[2].y + mv[3].y; + } - start_timer(); - idct(&data[i * 64]); - stop_idct_timer(); + uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; + uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; + + if (reduced_resolution) { + interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, + mv[0].x, mv[0].y, stride, rounding); + interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos, + mv[1].x, mv[1].y, stride, rounding); + interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos, 32*y_pos + 16, + mv[2].x, mv[2].y, stride, rounding); + interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos + 16, + mv[3].x, mv[3].y, stride, rounding); + interpolate16x16_switch(dec->cur.u, dec->refn[0].u , 16 * x_pos, 16 * y_pos, + uv_dx, uv_dy, stride2, rounding); + interpolate16x16_switch(dec->cur.v, dec->refn[0].v , 16 * x_pos, 16 * y_pos, + uv_dx, uv_dy, stride2, rounding); + + } else if (dec->quarterpel) { + interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos, + mv[0].x, mv[0].y, stride, rounding); + interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, + mv[1].x, mv[1].y, stride, rounding); + interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, + mv[2].x, mv[2].y, stride, rounding); + interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, + mv[3].x, mv[3].y, stride, rounding); + } else { + interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos, + mv[0].x, mv[0].y, stride, rounding); + interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos, + mv[1].x, mv[1].y, stride, rounding); + interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos + 8, + mv[2].x, mv[2].y, stride, rounding); + interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos + 8, + mv[3].x, mv[3].y, stride, rounding); } } - if (dec->interlacing && pMB->field_dct) { - next_block = stride; - stride *= 2; + /* chroma */ + if (reduced_resolution) { + interpolate16x16_switch(dec->cur.u, dec->refn[0].u, 16 * x_pos, 16 * y_pos, + uv_dx, uv_dy, stride2, rounding); + interpolate16x16_switch(dec->cur.v, dec->refn[0].v, 16 * x_pos, 16 * y_pos, + uv_dx, uv_dy, stride2, rounding); + } else { + interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, + uv_dx, uv_dy, stride2, rounding); + interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, + uv_dx, uv_dy, stride2, rounding); } + stop_comp_timer(); + + if (cbp) + decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, + reduced_resolution, pMB); +} + +static void +decoder_mbgmc(DECODER * dec, + MACROBLOCK * const pMB, + const uint32_t x_pos, + const uint32_t y_pos, + const uint32_t fcode, + const uint32_t cbp, + Bitstream * bs, + const uint32_t rounding) +{ + const uint32_t stride = dec->edged_width; + const uint32_t stride2 = stride / 2; + + uint8_t *const pY_Cur=dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); + uint8_t *const pU_Cur=dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); + uint8_t *const pV_Cur=dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); + + NEW_GMC_DATA * gmc_data = &dec->new_gmc_data; + + pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; + start_timer(); - if (cbp & 32) - transfer_16to8add(pY_Cur, &data[0 * 64], stride); - if (cbp & 16) - transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); - if (cbp & 8) - transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); - if (cbp & 4) - transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); - if (cbp & 2) - transfer_16to8add(pU_Cur, &data[4 * 64], stride2); - if (cbp & 1) - transfer_16to8add(pV_Cur, &data[5 * 64], stride2); + +/* this is where the calculations are done */ + + gmc_data->predict_16x16(gmc_data, + dec->cur.y + y_pos*16*stride + x_pos*16, dec->refn[0].y, + stride, stride, x_pos, y_pos, rounding); + + gmc_data->predict_8x8(gmc_data, + dec->cur.u + y_pos*8*stride2 + x_pos*8, dec->refn[0].u, + dec->cur.v + y_pos*8*stride2 + x_pos*8, dec->refn[0].v, + stride2, stride2, x_pos, y_pos, rounding); + + gmc_data->get_average_mv(gmc_data, &pMB->amv, x_pos, y_pos, dec->quarterpel); + + pMB->amv.x = gmc_sanitize(pMB->amv.x, dec->quarterpel, fcode); + pMB->amv.y = gmc_sanitize(pMB->amv.y, dec->quarterpel, fcode); + + pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; + stop_transfer_timer(); + + if (cbp) + decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, 0, pMB); + } -void +static void decoder_iframe(DECODER * dec, - Bitstream * bs, - int quant, - int intra_dc_threshold) + Bitstream * bs, + int reduced_resolution, + int quant, + int intra_dc_threshold) { - + uint32_t bound; uint32_t x, y; + uint32_t mb_width = dec->mb_width; + uint32_t mb_height = dec->mb_height; - for (y = 0; y < dec->mb_height; y++) { - for (x = 0; x < dec->mb_width; x++) { - MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; + if (reduced_resolution) { + mb_width = (dec->width + 31) / 32; + mb_height = (dec->height + 31) / 32; + } + bound = 0; + + for (y = 0; y < mb_height; y++) { + for (x = 0; x < mb_width; x++) { + MACROBLOCK *mb; uint32_t mcbpc; uint32_t cbpc; uint32_t acpred_flag; uint32_t cbpy; uint32_t cbp; + while (BitstreamShowBits(bs, 9) == 1) + BitstreamSkip(bs, 9); + + if (check_resync_marker(bs, 0)) + { + bound = read_video_packet_header(bs, dec, 0, + &quant, NULL, NULL, &intra_dc_threshold); + x = bound % mb_width; + y = bound / mb_width; + } + mb = &dec->mbs[y * dec->mb_width + x]; + + DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); + mcbpc = get_mcbpc_intra(bs); mb->mode = mcbpc & 7; cbpc = (mcbpc >> 4); acpred_flag = BitstreamGetBit(bs); - if (mb->mode == MODE_STUFFING) { - DEBUG("-- STUFFING ?"); - continue; - } - cbpy = get_cbpy(bs, 1); cbp = (cbpy << 2) | cbpc; @@ -574,863 +729,891 @@ } } mb->quant = quant; + mb->mvs[0].x = mb->mvs[0].y = + mb->mvs[1].x = mb->mvs[1].y = + mb->mvs[2].x = mb->mvs[2].y = + mb->mvs[3].x = mb->mvs[3].y =0; if (dec->interlacing) { mb->field_dct = BitstreamGetBit(bs); - DEBUG1("deci: field_dct: ", mb->field_dct); + DPRINTF(XVID_DEBUG_MB,"deci: field_dct: %i\n", mb->field_dct); } decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, - intra_dc_threshold); + intra_dc_threshold, bound, reduced_resolution); + } + if(dec->out_frm) + output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,mb_width); } } -void +static void get_motion_vector(DECODER * dec, - Bitstream * bs, - int x, - int y, - int k, - VECTOR * mv, - int fcode) + Bitstream * bs, + int x, + int y, + int k, + VECTOR * ret_mv, + int fcode, + const int bound) { - int scale_fac = 1 << (fcode - 1); - int high = (32 * scale_fac) - 1; - int low = ((-32) * scale_fac); - int range = (64 * scale_fac); + const int scale_fac = 1 << (fcode - 1); + const int high = (32 * scale_fac) - 1; + const int low = ((-32) * scale_fac); + const int range = (64 * scale_fac); - VECTOR pmv[4]; - int32_t psad[4]; + const VECTOR pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); + VECTOR mv; - int mv_x, mv_y; - int pmv_x, pmv_y; + mv.x = get_mv(bs, fcode); + mv.y = get_mv(bs, fcode); + DPRINTF(XVID_DEBUG_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)\n", mv.x, mv.y, pmv.x, pmv.y, mv.x+pmv.x, mv.y+pmv.y); - get_pmvdata(dec->mbs, x, y, dec->mb_width, k, pmv, psad); + mv.x += pmv.x; + mv.y += pmv.y; - pmv_x = pmv[0].x; - pmv_y = pmv[0].y; - - mv_x = get_mv(bs, fcode); - mv_y = get_mv(bs, fcode); - - mv_x += pmv_x; - mv_y += pmv_y; - - if (mv_x < low) { - mv_x += range; - } else if (mv_x > high) { - mv_x -= range; + if (mv.x < low) { + mv.x += range; + } else if (mv.x > high) { + mv.x -= range; } - if (mv_y < low) { - mv_y += range; - } else if (mv_y > high) { - mv_y -= range; + if (mv.y < low) { + mv.y += range; + } else if (mv.y > high) { + mv.y -= range; } - mv->x = mv_x; - mv->y = mv_y; - + ret_mv->x = mv.x; + ret_mv->y = mv.y; } - -void +/* for P_VOP set gmc_warp to NULL */ +static void decoder_pframe(DECODER * dec, - Bitstream * bs, - int rounding, - int quant, - int fcode, - int intra_dc_threshold) + Bitstream * bs, + int rounding, + int reduced_resolution, + int quant, + int fcode, + int intra_dc_threshold, + const WARPPOINTS *const gmc_warp) { - uint32_t x, y; + uint32_t bound; + int cp_mb, st_mb; + uint32_t mb_width = dec->mb_width; + uint32_t mb_height = dec->mb_height; + + if (reduced_resolution) { + mb_width = (dec->width + 31) / 32; + mb_height = (dec->height + 31) / 32; + } start_timer(); image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, - dec->width, dec->height, dec->interlacing); + dec->width, dec->height, dec->bs_version); stop_edges_timer(); - for (y = 0; y < dec->mb_height; y++) { - for (x = 0; x < dec->mb_width; x++) { - MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; + if (gmc_warp) { + /* accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ + generate_GMCparameters( dec->sprite_warping_points, + dec->sprite_warping_accuracy, gmc_warp, + dec->width, dec->height, &dec->new_gmc_data); + + /* image warping is done block-based in decoder_mbgmc(), now */ + } + + bound = 0; + + for (y = 0; y < mb_height; y++) { + cp_mb = st_mb = 0; + for (x = 0; x < mb_width; x++) { + MACROBLOCK *mb; + + /* skip stuffing */ + while (BitstreamShowBits(bs, 10) == 1) + BitstreamSkip(bs, 10); + + if (check_resync_marker(bs, fcode - 1)) { + bound = read_video_packet_header(bs, dec, fcode - 1, + &quant, &fcode, NULL, &intra_dc_threshold); + x = bound % mb_width; + y = bound / mb_width; + } + mb = &dec->mbs[y * dec->mb_width + x]; - //if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded - if (!(BitstreamGetBit(bs))) // not_coded - { - uint32_t mcbpc; - uint32_t cbpc; - uint32_t acpred_flag; - uint32_t cbpy; - uint32_t cbp; - uint32_t intra; + DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); + + if (!(BitstreamGetBit(bs))) { /* block _is_ coded */ + uint32_t mcbpc, cbpc, cbpy, cbp; + uint32_t intra, acpred_flag = 0; + int mcsel = 0; /* mcsel: '0'=local motion, '1'=GMC */ + cp_mb++; mcbpc = get_mcbpc_inter(bs); mb->mode = mcbpc & 7; cbpc = (mcbpc >> 4); - acpred_flag = 0; + + DPRINTF(XVID_DEBUG_MB, "mode %i\n", mb->mode); + DPRINTF(XVID_DEBUG_MB, "cbpc %i\n", cbpc); intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); - if (intra) { + if (gmc_warp && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) + mcsel = BitstreamGetBit(bs); + else if (intra) acpred_flag = BitstreamGetBit(bs); - } - - if (mb->mode == MODE_STUFFING) { - DEBUG("-- STUFFING ?"); - continue; - } cbpy = get_cbpy(bs, intra); + DPRINTF(XVID_DEBUG_MB, "cbpy %i mcsel %i \n", cbpy,mcsel); + cbp = (cbpy << 2) | cbpc; if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { - quant += dquant_table[BitstreamGetBits(bs, 2)]; + int dquant = dquant_table[BitstreamGetBits(bs, 2)]; + DPRINTF(XVID_DEBUG_MB, "dquant %i\n", dquant); + quant += dquant; if (quant > 31) { quant = 31; - } else if (mb->quant < 1) { + } else if (quant < 1) { quant = 1; } + DPRINTF(XVID_DEBUG_MB, "quant %i\n", quant); } mb->quant = quant; if (dec->interlacing) { - mb->field_dct = BitstreamGetBit(bs); - DEBUG1("decp: field_dct: ", mb->field_dct); + if (cbp || intra) { + mb->field_dct = BitstreamGetBit(bs); + DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); + } - if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { + if ((mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) && !mcsel) { mb->field_pred = BitstreamGetBit(bs); - DEBUG1("decp: field_pred: ", mb->field_pred); + DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); if (mb->field_pred) { mb->field_for_top = BitstreamGetBit(bs); - DEBUG1("decp: field_for_top: ", mb->field_for_top); + DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); mb->field_for_bot = BitstreamGetBit(bs); - DEBUG1("decp: field_for_bot: ", mb->field_for_bot); + DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); } } } - if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { + if (mcsel) { + decoder_mbgmc(dec, mb, x, y, fcode, cbp, bs, rounding); + continue; + + } else if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { + if (dec->interlacing && mb->field_pred) { - get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], - fcode); - get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], - fcode); + get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); + get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], fcode, bound); } else { - get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], - fcode); - mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = - mb->mvs[0].x; - mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = - mb->mvs[0].y; + get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); + mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; } - } else if (mb->mode == - MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { - get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); - get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode); - get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode); - get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode); - } else // MODE_INTRA, MODE_INTRA_Q - { - mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = - 0; - mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = - 0; + } else if (mb->mode == MODE_INTER4V ) { + get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); + get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); + get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); + get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); + } else { /* MODE_INTRA, MODE_INTRA_Q */ + mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; + mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, - intra_dc_threshold); + intra_dc_threshold, bound, reduced_resolution); continue; } - decoder_mbinter(dec, mb, x, y, acpred_flag, cbp, bs, quant, - rounding); - } else // not coded - { - //DEBUG2("P-frame MB at (X,Y)=",x,y); + decoder_mbinter(dec, mb, x, y, cbp, bs, + rounding, reduced_resolution, 0); + + } else if (gmc_warp) { /* a not coded S(GMC)-VOP macroblock */ + mb->mode = MODE_NOT_CODED_GMC; + mb->quant = quant; + decoder_mbgmc(dec, mb, x, y, fcode, 0x00, bs, rounding); + + if(dec->out_frm && cp_mb > 0) { + output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); + cp_mb = 0; + } + st_mb = x+1; + } else { /* not coded P_VOP macroblock */ mb->mode = MODE_NOT_CODED; + mb->quant = quant; + mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; - // copy macroblock directly from ref to cur + decoder_mbinter(dec, mb, x, y, 0, bs, + rounding, reduced_resolution, 0); - start_timer(); - - transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + - (16 * x), - dec->refn[0].y + (16 * y) * dec->edged_width + - (16 * x), dec->edged_width); - - transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + - (16 * x + 8), - dec->refn[0].y + (16 * y) * dec->edged_width + - (16 * x + 8), dec->edged_width); - - transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + - (16 * x), - dec->refn[0].y + (16 * y + - 8) * dec->edged_width + - (16 * x), dec->edged_width); - - transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + - (16 * x + 8), - dec->refn[0].y + (16 * y + - 8) * dec->edged_width + - (16 * x + 8), dec->edged_width); - - transfer8x8_copy(dec->cur.u + (8 * y) * dec->edged_width / 2 + - (8 * x), - dec->refn[0].u + - (8 * y) * dec->edged_width / 2 + (8 * x), - dec->edged_width / 2); - - transfer8x8_copy(dec->cur.v + (8 * y) * dec->edged_width / 2 + - (8 * x), - dec->refn[0].v + - (8 * y) * dec->edged_width / 2 + (8 * x), - dec->edged_width / 2); - - stop_transfer_timer(); + if(dec->out_frm && cp_mb > 0) { + output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); + cp_mb = 0; + } + st_mb = x+1; } } + + if(dec->out_frm && cp_mb > 0) + output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); } } -// add by MinChen -// decode B-frame motion vector -void -get_b_motion_vector(DECODER * dec, - Bitstream * bs, - int x, - int y, +/* decode B-frame motion vector */ +static void +get_b_motion_vector(Bitstream * bs, VECTOR * mv, int fcode, - const VECTOR pmv) + const VECTOR pmv, + const DECODER * const dec, + const int x, const int y) { - int scale_fac = 1 << (fcode - 1); - int high = (32 * scale_fac) - 1; - int low = ((-32) * scale_fac); - int range = (64 * scale_fac); - - int mv_x, mv_y; - int pmv_x, pmv_y; + const int scale_fac = 1 << (fcode - 1); + const int high = (32 * scale_fac) - 1; + const int low = ((-32) * scale_fac); + const int range = (64 * scale_fac); - pmv_x = pmv.x; - pmv_y = pmv.y; + int mv_x = get_mv(bs, fcode); + int mv_y = get_mv(bs, fcode); - mv_x = get_mv(bs, fcode); - mv_y = get_mv(bs, fcode); + mv_x += pmv.x; + mv_y += pmv.y; - mv_x += pmv_x; - mv_y += pmv_y; - - if (mv_x < low) { + if (mv_x < low) mv_x += range; - } else if (mv_x > high) { + else if (mv_x > high) mv_x -= range; - } - if (mv_y < low) { + if (mv_y < low) mv_y += range; - } else if (mv_y > high) { + else if (mv_y > high) mv_y -= range; - } mv->x = mv_x; mv->y = mv_y; } - -// add by MinChen -// decode an B-frame forward & backward inter macroblock -void -decoder_bf_mbinter(DECODER * dec, - const MACROBLOCK * pMB, - const uint32_t x_pos, - const uint32_t y_pos, - const uint32_t cbp, - Bitstream * bs, - const uint32_t quant, - const uint8_t ref) +/* decode an B-frame direct & interpolate macroblock */ +static void +decoder_bf_interpolate_mbinter(DECODER * dec, + IMAGE forward, + IMAGE backward, + const MACROBLOCK * pMB, + const uint32_t x_pos, + const uint32_t y_pos, + Bitstream * bs, + const int direct) { - - DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); - DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); - uint32_t stride = dec->edged_width; uint32_t stride2 = stride / 2; - uint32_t next_block = stride * 8; - uint32_t i; - uint32_t iQuant = pMB->quant; - uint8_t *pY_Cur, *pU_Cur, *pV_Cur; int uv_dx, uv_dy; + int b_uv_dx, b_uv_dy; + uint8_t *pY_Cur, *pU_Cur, *pV_Cur; + const uint32_t cbp = pMB->cbp; pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); - if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { + if (!direct) { uv_dx = pMB->mvs[0].x; uv_dy = pMB->mvs[0].y; - uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; - uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; - } else { - int sum; - - sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; - uv_dx = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); - - sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; - uv_dy = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); - } + b_uv_dx = pMB->b_mvs[0].x; + b_uv_dy = pMB->b_mvs[0].y; - start_timer(); - interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, 16 * y_pos, - pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); - interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, - 16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); - interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, - 16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, - 0); - interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, - 16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, - 0); - interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, - uv_dx, uv_dy, stride2, 0); - interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, - uv_dx, uv_dy, stride2, 0); - stop_comp_timer(); + if (dec->quarterpel) { + uv_dx /= 2; + uv_dy /= 2; + b_uv_dx /= 2; + b_uv_dy /= 2; + } - for (i = 0; i < 6; i++) { - if (cbp & (1 << (5 - i))) // coded - { - memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear + uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; + uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; - start_timer(); - get_inter_block(bs, &block[i * 64]); - stop_coding_timer(); + b_uv_dx = (b_uv_dx >> 1) + roundtab_79[b_uv_dx & 0x3]; + b_uv_dy = (b_uv_dy >> 1) + roundtab_79[b_uv_dy & 0x3]; - start_timer(); - if (dec->quant_type == 0) { - dequant_inter(&data[i * 64], &block[i * 64], iQuant); - } else { - dequant4_inter(&data[i * 64], &block[i * 64], iQuant); - } - stop_iquant_timer(); - - start_timer(); - idct(&data[i * 64]); - stop_idct_timer(); + } else { + if(dec->quarterpel) { + uv_dx = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); + uv_dy = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); + b_uv_dx = (pMB->b_mvs[0].x / 2) + (pMB->b_mvs[1].x / 2) + (pMB->b_mvs[2].x / 2) + (pMB->b_mvs[3].x / 2); + b_uv_dy = (pMB->b_mvs[0].y / 2) + (pMB->b_mvs[1].y / 2) + (pMB->b_mvs[2].y / 2) + (pMB->b_mvs[3].y / 2); + } else { + uv_dx = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; + uv_dy = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; + b_uv_dx = pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + pMB->b_mvs[3].x; + b_uv_dy = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; } - } - if (dec->interlacing && pMB->field_dct) { - next_block = stride; - stride *= 2; + uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; + uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; + b_uv_dx = (b_uv_dx >> 3) + roundtab_76[b_uv_dx & 0xf]; + b_uv_dy = (b_uv_dy >> 3) + roundtab_76[b_uv_dy & 0xf]; } start_timer(); - if (cbp & 32) - transfer_16to8add(pY_Cur, &data[0 * 64], stride); - if (cbp & 16) - transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); - if (cbp & 8) - transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); - if (cbp & 4) - transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); - if (cbp & 2) - transfer_16to8add(pU_Cur, &data[4 * 64], stride2); - if (cbp & 1) - transfer_16to8add(pV_Cur, &data[5 * 64], stride2); - stop_transfer_timer(); -} - - -// add by MinChen -// decode an B-frame direct & inter macroblock -void -decoder_bf_interpolate_mbinter(DECODER * dec, - IMAGE forward, - IMAGE backward, - const MACROBLOCK * pMB, - const uint32_t x_pos, - const uint32_t y_pos, - const uint32_t cbp, - Bitstream * bs) -{ - - DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); - DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); - - uint32_t stride = dec->edged_width; - uint32_t stride2 = stride / 2; - uint32_t next_block = stride * 8; - uint32_t iQuant = pMB->quant; - int uv_dx, uv_dy; - int b_uv_dx, b_uv_dy; - uint32_t i; - uint8_t *pY_Cur, *pU_Cur, *pV_Cur; - - pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); - pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); - pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); - - if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { - uv_dx = pMB->mvs[0].x; - uv_dy = pMB->mvs[0].y; - - uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; - uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; - - b_uv_dx = pMB->b_mvs[0].x; - b_uv_dy = pMB->b_mvs[0].y; - - b_uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; - b_uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; + if(dec->quarterpel) { + if(!direct) { + interpolate16x16_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos, + pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); + } else { + interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos, + pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); + interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, + pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); + interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, + pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); + interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, + pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); + } } else { - int sum; - - sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; - uv_dx = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); - - sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; - uv_dy = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); - - sum = - pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + - pMB->b_mvs[3].x; - b_uv_dx = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); - - sum = - pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + - pMB->b_mvs[3].y; - b_uv_dy = - (sum == - 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + - (ABS(sum) / 16) * 2)); + interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, + pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); + interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, + pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); + interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, + pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); + interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos + 8, + pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); } - - start_timer(); - interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, - pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); - interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, - pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); - interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, - pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); - interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, - 16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, - 0); interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, - uv_dy, stride2, 0); + uv_dy, stride2, 0); interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, - uv_dy, stride2, 0); - + uv_dy, stride2, 0); - interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, 16 * y_pos, - pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); - interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, - 16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, - 0); - interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, - 16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, - stride, 0); - interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, - 16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, - stride, 0); - interpolate8x8_switch(dec->refn[2].u, backward.u, 8 * x_pos, 8 * y_pos, - b_uv_dx, b_uv_dy, stride2, 0); - interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, - b_uv_dx, b_uv_dy, stride2, 0); - - interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos, - stride); - interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, 16 * y_pos, - stride); - interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos + 8, - stride); - interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, - 16 * y_pos + 8, stride); - interpolate8x8_c(dec->cur.u, dec->refn[2].u, 8 * x_pos, 8 * y_pos, - stride2); - interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, - stride2); - stop_comp_timer(); - - for (i = 0; i < 6; i++) { - if (cbp & (1 << (5 - i))) // coded - { - memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear - - start_timer(); - get_inter_block(bs, &block[i * 64]); - stop_coding_timer(); - - start_timer(); - if (dec->quant_type == 0) { - dequant_inter(&data[i * 64], &block[i * 64], iQuant); - } else { - dequant4_inter(&data[i * 64], &block[i * 64], iQuant); - } - stop_iquant_timer(); - - start_timer(); - idct(&data[i * 64]); - stop_idct_timer(); + if(dec->quarterpel) { + if(!direct) { + interpolate16x16_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos, + pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); + } else { + interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos, + pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); + interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, + pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); + interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, + pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); + interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, + dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, + pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); } - } + } else { + interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, 16 * y_pos, + pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); + interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, + 16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); + interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, + 16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); + interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, + 16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); + } + + interpolate8x8_switch(dec->tmp.u, backward.u, 8 * x_pos, 8 * y_pos, + b_uv_dx, b_uv_dy, stride2, 0); + interpolate8x8_switch(dec->tmp.v, backward.v, 8 * x_pos, 8 * y_pos, + b_uv_dx, b_uv_dy, stride2, 0); + + interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, + dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, + dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos, + stride, 1, 8); + + interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, + dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, + dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos + 8, + stride, 1, 8); + + interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, + dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, + dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, + stride, 1, 8); + + interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, + dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, + dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, + stride, 1, 8); + + interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, + dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, + dec->tmp.u + (8 * y_pos * stride2) + 8 * x_pos, + stride2, 1, 8); + + interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, + dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, + dec->tmp.v + (8 * y_pos * stride2) + 8 * x_pos, + stride2, 1, 8); - if (dec->interlacing && pMB->field_dct) { - next_block = stride; - stride *= 2; - } + stop_comp_timer(); - start_timer(); - if (cbp & 32) - transfer_16to8add(pY_Cur, &data[0 * 64], stride); - if (cbp & 16) - transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); - if (cbp & 8) - transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); - if (cbp & 4) - transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); - if (cbp & 2) - transfer_16to8add(pU_Cur, &data[4 * 64], stride2); - if (cbp & 1) - transfer_16to8add(pV_Cur, &data[5 * 64], stride2); - stop_transfer_timer(); + if (cbp) + decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, 0, pMB); } - -// add by MinChen -// for decode B-frame dbquant -int32_t __inline +/* for decode B-frame dbquant */ +static __inline int32_t get_dbquant(Bitstream * bs) { - if (!BitstreamGetBit(bs)) // '0' + if (!BitstreamGetBit(bs)) /* '0' */ return (0); - else if (!BitstreamGetBit(bs)) // '10' + else if (!BitstreamGetBit(bs)) /* '10' */ return (-2); - else - return (2); // '11' + else /* '11' */ + return (2); } -// add by MinChen -// for decode B-frame mb_type -// bit ret_value -// 1 0 -// 01 1 -// 001 2 -// 0001 3 -int32_t __inline +/* + * decode B-frame mb_type + * bit ret_value + * 1 0 + * 01 1 + * 001 2 + * 0001 3 + */ +static int32_t __inline get_mbtype(Bitstream * bs) { int32_t mb_type; - for (mb_type = 0; mb_type <= 3; mb_type++) { + for (mb_type = 0; mb_type <= 3; mb_type++) if (BitstreamGetBit(bs)) - break; - } + return (mb_type); - if (mb_type <= 3) - return (mb_type); - else - return (-1); + return -1; } -void +static void decoder_bframe(DECODER * dec, - Bitstream * bs, - int quant, - int fcode_forward, - int fcode_backward) + Bitstream * bs, + int quant, + int fcode_forward, + int fcode_backward) { - uint32_t x, y; - VECTOR mv, zeromv; + VECTOR mv; + const VECTOR zeromv = {0,0}; + const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; + int i; start_timer(); image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, - dec->width, dec->height, dec->interlacing); - //image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); + dec->width, dec->height, dec->bs_version); + image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, + dec->width, dec->height, dec->bs_version); stop_edges_timer(); - for (y = 0; y < dec->mb_height; y++) { - // Initialize Pred Motion Vector - dec->p_fmv.x = dec->p_fmv.y = dec->p_bmv.x = dec->p_bmv.y = 0; + /* Initialize Pred Motion Vector */ + dec->p_fmv = dec->p_bmv = zeromv; for (x = 0; x < dec->mb_width; x++) { MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; + const int fcode_max = (fcode_forward>fcode_backward) ? fcode_forward : fcode_backward; + uint32_t intra_dc_threshold; /* fake variable */ + + if (check_resync_marker(bs, fcode_max - 1)) { + int bound = read_video_packet_header(bs, dec, fcode_max - 1, &quant, + &fcode_forward, &fcode_backward, &intra_dc_threshold); + x = bound % dec->mb_width; + y = bound / dec->mb_width; + /* reset predicted macroblocks */ + dec->p_fmv = dec->p_bmv = zeromv; + } + + mv = + mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = + mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; + mb->quant = quant; - mb->mvs[0].x = mb->mvs[0].y = zeromv.x = zeromv.y = mv.x = mv.y = - 0; + /* + * skip if the co-located P_VOP macroblock is not coded + * if not codec in co-located S_VOP macroblock is _not_ + * automatically skipped + */ - // the last P_VOP is skip macroblock ? if (last_mb->mode == MODE_NOT_CODED) { - //DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); - mb->mb_type = MODE_FORWARD; mb->cbp = 0; - mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; - mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; - mb->quant = 8; - - decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); + mb->mode = MODE_FORWARD; + decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); continue; } - //t=BitstreamShowBits(bs,32); - if (!BitstreamGetBit(bs)) { // modb=='0' + if (!BitstreamGetBit(bs)) { /* modb=='0' */ const uint8_t modb2 = BitstreamGetBit(bs); - mb->mb_type = get_mbtype(bs); + mb->mode = get_mbtype(bs); - if (!modb2) { // modb=='00' + if (!modb2) /* modb=='00' */ mb->cbp = BitstreamGetBits(bs, 6); - } else { + else mb->cbp = 0; - } - if (mb->mb_type && mb->cbp) { - quant += get_dbquant(bs); - if (quant > 31) { + if (mb->mode && mb->cbp) { + quant += get_dbquant(bs); + if (quant > 31) quant = 31; - } else if (mb->quant < 1) { + else if (quant < 1) quant = 1; - } - } else { - quant = 8; } mb->quant = quant; + + if (dec->interlacing) { + if (mb->cbp) { + mb->field_dct = BitstreamGetBit(bs); + DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); + } + + if (mb->mode) { + mb->field_pred = BitstreamGetBit(bs); + DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); + + if (mb->field_pred) { + mb->field_for_top = BitstreamGetBit(bs); + DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); + mb->field_for_bot = BitstreamGetBit(bs); + DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); + } + } + } + } else { - mb->mb_type = MODE_DIRECT_NONE_MV; + mb->mode = MODE_DIRECT_NONE_MV; mb->cbp = 0; } - mb->mode = MODE_INTER; - //DEBUG1("Switch bm_type=",mb->mb_type); - - switch (mb->mb_type) { + switch (mb->mode) { case MODE_DIRECT: - get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], 1, zeromv); + get_b_motion_vector(bs, &mv, 1, zeromv, dec, x, y); case MODE_DIRECT_NONE_MV: - { // Because this file is a C file not C++ so I use '{' to define var - const int64_t TRB = dec->time_pp - dec->time_bp, TRD = - dec->time_pp; - int i; - - for (i = 0; i < 4; i++) { - mb->mvs[i].x = - (int32_t) ((TRB * last_mb->mvs[i].x) / TRD + - mb->mvs[0].x); - mb->b_mvs[i].x = - (int32_t) ((mb->mvs[0].x == - 0) ? ((TRB - - TRD) * last_mb->mvs[i].x) / - TRD : mb->mvs[i].x - last_mb->mvs[i].x); - mb->mvs[i].y = - (int32_t) ((TRB * last_mb->mvs[i].y) / TRD + - mb->mvs[0].y); - mb->b_mvs[i].y = - (int32_t) ((mb->mvs[0].y == - 0) ? ((TRB - - TRD) * last_mb->mvs[i].y) / - TRD : mb->mvs[i].y - last_mb->mvs[i].y); - } - //DEBUG("B-frame Direct!\n"); + for (i = 0; i < 4; i++) { + mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) / TRD + mv.x); + mb->b_mvs[i].x = (int32_t) ((mv.x == 0) + ? ((TRB - TRD) * last_mb->mvs[i].x) / TRD + : mb->mvs[i].x - last_mb->mvs[i].x); + mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) / TRD + mv.y); + mb->b_mvs[i].y = (int32_t) ((mv.y == 0) + ? ((TRB - TRD) * last_mb->mvs[i].y) / TRD + : mb->mvs[i].y - last_mb->mvs[i].y); } - mb->mode = MODE_INTER4V; + decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], - mb, x, y, mb->cbp, bs); + mb, x, y, bs, 1); break; case MODE_INTERPOLATE: - get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, - dec->p_fmv); - dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = - mb->mvs[0].x; - dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = - mb->mvs[0].y; - - get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], - fcode_backward, dec->p_bmv); - dec->p_bmv.x = mb->b_mvs[1].x = mb->b_mvs[2].x = - mb->b_mvs[3].x = mb->b_mvs[0].x; - dec->p_bmv.y = mb->b_mvs[1].y = mb->b_mvs[2].y = - mb->b_mvs[3].y = mb->b_mvs[0].y; + get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); + dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; + + get_b_motion_vector(bs, &mb->b_mvs[0], fcode_backward, dec->p_bmv, dec, x, y); + dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = mb->b_mvs[0]; decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], - mb, x, y, mb->cbp, bs); - //DEBUG("B-frame Bidir!\n"); + mb, x, y, bs, 0); break; case MODE_BACKWARD: - get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, - dec->p_bmv); - dec->p_bmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = - mb->mvs[0].x; - dec->p_bmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = - mb->mvs[0].y; + get_b_motion_vector(bs, &mb->mvs[0], fcode_backward, dec->p_bmv, dec, x, y); + dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; - decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); - //DEBUG("B-frame Backward!\n"); + decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 0); break; case MODE_FORWARD: - get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, - dec->p_fmv); - dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = - mb->mvs[0].x; - dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = - mb->mvs[0].y; + get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); + dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; - decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); - //DEBUG("B-frame Forward!\n"); + decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); break; default: - DEBUG1("Not support B-frame mb_type =", mb->mb_type); + DPRINTF(XVID_DEBUG_ERROR,"Not supported B-frame mb_type = %i\n", mb->mode); } - - } // end of FOR + } /* End of for */ } } -// swap two MACROBLOCK array -void -mb_swap(MACROBLOCK ** mb1, - MACROBLOCK ** mb2) +/* perform post processing if necessary, and output the image */ +void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, + xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, + int coding_type, int quant) { - MACROBLOCK *temp = *mb1; + const int brightness = XVID_VERSION_MINOR(frame->version) >= 1 ? frame->brightness : 0; + + if (dec->cartoon_mode) + frame->general &= ~XVID_FILMEFFECT; - *mb1 = *mb2; - *mb2 = temp; + if ((frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) || brightness!=0) + && mbs != NULL) /* post process */ + { + /* note: image is stored to tmp */ + image_copy(&dec->tmp, img, dec->edged_width, dec->height); + image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, + mbs, dec->mb_width, dec->mb_height, dec->mb_width, + frame->general, brightness, dec->frames, (coding_type == B_VOP)); + img = &dec->tmp; + } + + image_output(img, dec->width, dec->height, + dec->edged_width, (uint8_t**)frame->output.plane, frame->output.stride, + frame->output.csp, dec->interlacing); + + if (stats) { + stats->type = coding2type(coding_type); + stats->data.vop.time_base = (int)dec->time_base; + stats->data.vop.time_increment = 0; /* XXX: todo */ + stats->data.vop.qscale_stride = dec->mb_width; + stats->data.vop.qscale = dec->qscale; + if (stats->data.vop.qscale != NULL && mbs != NULL) { + int i; + for (i = 0; i < dec->mb_width*dec->mb_height; i++) + stats->data.vop.qscale[i] = mbs[i].quant; + } else + stats->data.vop.qscale = NULL; + } } + int decoder_decode(DECODER * dec, - XVID_DEC_FRAME * frame) + xvid_dec_frame_t * frame, xvid_dec_stats_t * stats) { Bitstream bs; uint32_t rounding; - uint32_t quant; + uint32_t reduced_resolution; + uint32_t quant = 2; uint32_t fcode_forward; uint32_t fcode_backward; uint32_t intra_dc_threshold; - uint32_t vop_type; + WARPPOINTS gmc_warp; + int coding_type; + int success, output, seen_something; - start_global_timer(); + if (XVID_VERSION_MAJOR(frame->version) != 1 || (stats && XVID_VERSION_MAJOR(stats->version) != 1)) /* v1.x.x */ + return XVID_ERR_VERSION; - BitstreamInit(&bs, frame->bitstream, frame->length); + start_global_timer(); - // add by chenm001 - // for support B-frame to reference last 2 frame - dec->frames++; - vop_type = - BitstreamReadHeaders(&bs, dec, &rounding, &quant, &fcode_forward, - &fcode_backward, &intra_dc_threshold); - - dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; // init pred vector to 0 - - switch (vop_type) { - case P_VOP: - decoder_pframe(dec, &bs, rounding, quant, fcode_forward, - intra_dc_threshold); - printf("P_VOP Time=%ld\n",dec->time); - DEBUG1("P_VOP Time=", dec->time); - break; - - case I_VOP: - decoder_iframe(dec, &bs, quant, intra_dc_threshold); - printf("I_VOP Time=%ld\n",dec->time); - DEBUG1("I_VOP Time=", dec->time); - break; - - case B_VOP: -#ifdef BFRAMES_DEC - if (dec->time_pp > dec->time_bp) { - printf("I_VOP Time=%ld\n",dec->time); - DEBUG1("B_VOP Time=", dec->time); - decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); + dec->low_delay_default = (frame->general & XVID_LOWDELAY); + if ((frame->general & XVID_DISCONTINUITY)) + dec->frames = 0; + dec->out_frm = (frame->output.csp == XVID_CSP_SLICE) ? &frame->output : NULL; + + if (frame->length < 0) { /* decoder flush */ + int ret; + /* if not decoding "low_delay/packed", and this isn't low_delay and + we have a reference frame, then outout the reference frame */ + if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) { + decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); + dec->frames = 0; + ret = 0; } else { - DEBUG("broken B-frame!"); + if (stats) stats->type = XVID_TYPE_NOTHING; + ret = XVID_ERR_END; } -#else - printf("Che minchia ne so\n"); - image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); -#endif - break; - case N_VOP: // vop not coded - // when low_delay==0, N_VOP's should interpolate between the past and future frames - image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); - printf("N_VOP vop not coded\n"); - break; + emms(); + stop_global_timer(); + return ret; + } + + BitstreamInit(&bs, frame->bitstream, frame->length); - default: - return XVID_ERR_FAIL; + /* XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's */ + if(dec->low_delay_default && frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) + { + image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, + (uint8_t**)frame->output.plane, frame->output.stride, frame->output.csp, dec->interlacing); + if (stats) stats->type = XVID_TYPE_NOTHING; + emms(); + return 1; /* one byte consumed */ + } + + success = 0; + output = 0; + seen_something = 0; + +repeat: + + coding_type = BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, + &quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, &gmc_warp); + + DPRINTF(XVID_DEBUG_HEADER, "coding_type=%i, packed=%i, time=%lli, time_pp=%i, time_bp=%i\n", + coding_type, dec->packed_mode, dec->time, dec->time_pp, dec->time_bp); + + if (coding_type == -1) { /* nothing */ + if (success) goto done; + if (stats) stats->type = XVID_TYPE_NOTHING; + emms(); + return BitstreamPos(&bs)/8; + } + + if (coding_type == -2 || coding_type == -3) { /* vol and/or resize */ + + if (coding_type == -3) + decoder_resize(dec); + + if (stats) { + stats->type = XVID_TYPE_VOL; + stats->data.vol.general = 0; + /*XXX: if (dec->interlacing) + stats->data.vol.general |= ++INTERLACING; */ + stats->data.vol.width = dec->width; + stats->data.vol.height = dec->height; + stats->data.vol.par = dec->aspect_ratio; + stats->data.vol.par_width = dec->par_width; + stats->data.vol.par_height = dec->par_height; + emms(); + return BitstreamPos(&bs)/8; /* number of bytes consumed */ + } + goto repeat; } - frame->length = BitstreamPos(&bs) / 8; + if(dec->frames == 0 && coding_type != I_VOP) { + /* 1st frame is not an i-vop */ + goto repeat; + } -#ifdef BFRAMES_DEC - // test if no B_VOP - if (dec->low_delay) { -#endif - image_output(&dec->cur, dec->width, dec->height, dec->edged_width, - frame->image, frame->stride, frame->colorspace); -#ifdef BFRAMES_DEC - } else { - if (dec->frames >= 1) { - start_timer(); - if ((vop_type == I_VOP || vop_type == P_VOP)) { - image_output(&dec->refn[0], dec->width, dec->height, - dec->edged_width, frame->image, frame->stride, - frame->colorspace); - } else if (vop_type == B_VOP) { - image_output(&dec->cur, dec->width, dec->height, - dec->edged_width, frame->image, frame->stride, - frame->colorspace); + dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ + + /* packed_mode: special-N_VOP treament */ + if (dec->packed_mode && coding_type == N_VOP) { + if (dec->low_delay_default && dec->frames > 0) { + decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); + output = 1; + } + /* ignore otherwise */ + } else if (coding_type != B_VOP) { + switch(coding_type) { + case I_VOP : + decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); + break; + case P_VOP : + decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, + fcode_forward, intra_dc_threshold, NULL); + break; + case S_VOP : + decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, + fcode_forward, intra_dc_threshold, &gmc_warp); + break; + case N_VOP : + /* XXX: not_coded vops are not used for forward prediction */ + /* we should not swap(last_mbs,mbs) */ + image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); + SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); /* it will be swapped back */ + break; + } + + if (reduced_resolution) { + image_deblock_rrv(&dec->cur, dec->edged_width, dec->mbs, + (dec->width + 31) / 32, (dec->height + 31) / 32, dec->mb_width, + 16, 0); + } + + /* note: for packed_mode, output is performed when the special-N_VOP is decoded */ + if (!(dec->low_delay_default && dec->packed_mode)) { + if (dec->low_delay) { + decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); + output = 1; + } else if (dec->frames > 0) { /* is the reference frame valid? */ + /* output the reference frame */ + decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); + output = 1; } - stop_conv_timer(); } - } -#endif - if (vop_type == I_VOP || vop_type == P_VOP) { image_swap(&dec->refn[0], &dec->refn[1]); image_swap(&dec->cur, &dec->refn[0]); - // swap MACROBLOCK - if (dec->low_delay && vop_type == P_VOP) - mb_swap(&dec->mbs, &dec->last_mbs); + SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); + dec->last_reduced_resolution = reduced_resolution; + dec->last_coding_type = coding_type; + + dec->frames++; + seen_something = 1; + + } else { /* B_VOP */ + + if (dec->low_delay) { + DPRINTF(XVID_DEBUG_ERROR, "warning: bvop found in low_delay==1 stream\n"); + dec->low_delay = 1; + } + + if (dec->frames < 2) { + /* attemping to decode a bvop without atleast 2 reference frames */ + image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, + "broken b-frame, mising ref frames"); + if (stats) stats->type = XVID_TYPE_NOTHING; + } else if (dec->time_pp <= dec->time_bp) { + /* this occurs when dx50_bvop_compatibility==0 sequences are + decoded in vfw. */ + image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, + "broken b-frame, tpp=%i tbp=%i", dec->time_pp, dec->time_bp); + if (stats) stats->type = XVID_TYPE_NOTHING; + } else { + decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); + decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); + } + + output = 1; + dec->frames++; } - emms(); +#if 0 /* Avoids to read to much data because of 32bit reads in our BS functions */ + BitstreamByteAlign(&bs); +#endif + + /* low_delay_default mode: repeat in packed_mode */ + if (dec->low_delay_default && dec->packed_mode && output == 0 && success == 0) { + success = 1; + goto repeat; + } + +done : + + /* low_delay_default mode: if we've gotten here without outputting anything, + then output the recently decoded frame, or print an error message */ + if (dec->low_delay_default && output == 0) { + if (dec->packed_mode && seen_something) { + /* output the recently decoded frame */ + decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); + } else { + image_clear(&dec->cur, dec->width, dec->height, dec->edged_width, 0, 128, 128); + image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, + "warning: nothing to output"); + image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, + "bframe decoder lag"); + decoder_output(dec, &dec->cur, NULL, frame, stats, P_VOP, quant); + if (stats) stats->type = XVID_TYPE_NOTHING; + } + } + + emms(); stop_global_timer(); - return XVID_ERR_OK; + return (BitstreamPos(&bs) + 7) / 8; /* number of bytes consumed */ }